Zortress

Generic Name: everolimus
Dosage Form: tablet

WARNING: MALIGNANCIES AND SERIOUS INFECTIONS, KIDNEY GRAFT THROMBOSIS; NEPHROTOXICITY; AND MORTALITY IN HEART TRANSPLANTATION

Malignancies and Serious Infections

  • Only physicians experienced in immunosuppressive therapy and management of transplant patients should prescribe Zortress. Patients receiving the drug should be managed in facilities equipped and staffed with adequate laboratory and supportive medical resources. The physician responsible for maintenance therapy should have complete information requisite for the follow-up of the patient. [See Warnings and Precautions (5.1)]
  • Increased susceptibility to infection and the possible development of malignancies such as lymphoma and skin cancer may result from immunosuppression. [See Warnings and Precautions (5.2 and 5.3)]

Kidney Graft Thrombosis

  • An increased risk of kidney arterial and venous thrombosis, resulting in graft loss, was reported, mostly within the first 30 days post-transplantation. [See Warnings and Precautions (5.4)]

Nephrotoxicity

  • Increased nephrotoxicity can occur with use of standard doses of cyclosporine in combination with Zortress. Therefore reduced doses of cyclosporine should be used in combination with Zortress in order to reduce renal dysfunction. It is important to monitor the cyclosporine and everolimus whole blood trough concentrations. [See Dosage and Administration (2.2 and 2.3) and Warnings and Precautions (5.5) and Clinical Pharmacology (12.7 and 12.8)]

Mortality in Heart Transplantation

  • Increased mortality, often associated with serious infections, within the first three months post-transplantation was observed in a clinical trial of de novo heart transplant patients receiving immunosuppressive regimens with or without induction therapy. Use in heart transplantation is not recommended. [See Warnings and Precautions (5.7)]

    INDICATIONS AND USAGE

     Prophylaxis of Organ Rejection in Kidney Transplantation

Zortress is indicated for the prophylaxis of organ rejection in adult patients at low-moderate immunologic risk receiving a kidney transplant. [See Clinical Studies (14.1)] Zortress is to be administered in combination with basiliximab induction and concurrently with reduced doses of cyclosporine and with corticosteroids. Therapeutic drug monitoring of everolimus and cyclosporine is recommended for all patients receiving these products. [See Dosage and Administration (2.2 and 2.3)]

     Prophylaxis of Organ Rejection in Liver Transplantation

Zortress is indicated for the prophylaxis of allograft rejection in adult patients receiving a liver transplant. Zortress is to be administered no earlier than 30 days post-transplant concurrently in combination with reduced doses of tacrolimus and with corticosteroids [See Warnings and Precautions (5.5) and Clinical Studies (14.2)]. Therapeutic drug monitoring of everolimus and tacrolimus is recommended for all patients receiving these products. [See Dosage and Administration (2.3 and 2.5)]

     Limitations of Use

The safety and efficacy of Zortress has not been established in the following populations:

     Kidney transplant patients at high immunologic risk
     Recipients of transplanted organs other than kidney and liver [See Warnings and Precautions (5.7)]
     Pediatric patients (<18 years).

    DOSAGE AND ADMINISTRATION

Patients receiving Zortress may require dose adjustments based on everolimus blood concentrations achieved, tolerability, individual response, change in concomitant medications and the clinical situation. Optimally, dose adjustments of Zortress should be based on trough concentrations obtained 4 or 5 days after a previous dosing change. [See Therapeutic Drug Monitoring (2.3)]

     Dosage in Adult Kidney Transplant Patients

An initial Zortress dose of 0.75 mg orally twice daily (1.5 mg per day) is recommended for adult kidney transplant patients in combination with reduced dose cyclosporine, administered as soon as possible after transplantation. [See Therapeutic Drug Monitoring (2.3 and 2.4), Clinical Studies (14.1)]

Oral prednisone should be initiated once oral medication is tolerated. Steroid doses may be further tapered on an individualized basis depending on the clinical status of patient and function of graft.

     Dosage in Adult Liver Transplant Patients

Start Zortress at least 30 days post-transplant. An initial dose of 1.0 mg orally twice daily (2.0 mg per day) is recommended for adult liver transplant patients in combination with reduced dose tacrolimus. [See Therapeutic Drug Monitoring (2.3 and 2.5), Clinical Studies (14.2)]

Steroid doses may be further tapered on an individualized basis depending on the clinical status of patient and function of graft.

     Therapeutic Drug Monitoring - Everolimus

Routine everolimus whole blood therapeutic drug concentration monitoring is recommended for all patients. The recommended everolimus therapeutic range is 3 to 8 ng/mL. [See Clinical Pharmacology (12.7)] Careful attention should be made to clinical signs and symptoms, tissue biopsies, and laboratory parameters. It is important to monitor everolimus blood concentrations, in patients with hepatic impairment, during concomitant administration of CYP3A4 inducers or inhibitors, when switching cyclosporine formulations and/or when cyclosporine dosing is reduced according to recommended target concentrations. [See Clinical Pharmacology (12.7 and 12.8)]

Slideshow: 2014 Update: First Time Brand-to-Generic Switches

There is an interaction of cyclosporine on everolimus, and consequently, everolimus concentrations may decrease if cyclosporine exposure is reduced. There is little to no pharmacokinetic interaction of tacrolimus on everolimus, and thus, everolimus concentrations do not decrease if the tacrolimus exposure is reduced. [See Drug Interactions (7.2)]

The everolimus recommended therapeutic range of 3 to 8 ng/mL is based on an LC/MS/MS assay method. Currently in clinical practice, everolimus whole blood trough concentrations may be measured by chromatographic or immunoassay methodologies. Because the measured everolimus whole blood trough concentrations depend on the assay used, individual patient sample concentration values from different assays may not be interchangeable. Consideration of assay results must be made with knowledge of the specific assay used. Therefore, communication should be maintained with the laboratory performing the assay.

     Therapeutic Drug Monitoring- Cyclosporine in Kidney Transplant Patients

Both cyclosporine doses and the target range for whole blood trough concentrations should be reduced, when given in a regimen with Zortress, in order to minimize the risk of nephrotoxicity. [See Warnings and Precautions (5.6) and Drug Interactions (7.2), Clinical Pharmacology (12.8)]

The recommended cyclosporine therapeutic ranges when administered with Zortress are 100 to 200 ng/mL through Month 1 post-transplant, 75 to 150 ng/mL at Months 2 and 3 post-transplant, 50 to 100 ng/mL at Month 4 post-transplant, and 25 to 50 ng/mL from Month 6 through Month 12 post-transplant. The median trough concentrations observed in the clinical trial ranged between 161 to 185 ng/mL through Month 1 post-transplant and between 111 to 140 ng/mL at Months 2 and 3 post-transplant. The median trough concentration was 99 ng/mL at Month 4 post-transplant and ranged between 46 to 75 ng/mL from Months 6 through Month 12 post-transplant. [See Clinical Pharmacology (12.8) and Clinical Studies (14.1)

Cyclosporine, USP Modified is to be administered as oral capsules twice daily unless cyclosporine oral solution or intravenous administration of cyclosporine cannot be avoided. Cyclosporine, USP Modified should be initiated as soon as possible - and no later than 48 hours - after reperfusion of the graft and dose adjusted to target concentrations from Day 5 onwards.

If impairment of renal function is progressive the treatment regimen should be adjusted. In renal transplant patients, the cyclosporine dose should be based on cyclosporine whole blood trough concentrations. [See Clinical Pharmacology (12.8)]

In renal transplantation, there are limited data regarding dosing Zortress with reduced cyclosporine trough concentrations of 25 to 50 ng/mL after 12 months. Zortress has not been evaluated in clinical trials with other formulations of cyclosporine. Prior to dose reduction of cyclosporine it should be ascertained that steady-state everolimus whole blood trough concentration is at least 3 ng/mL. There is an interaction of cyclosporine on everolimus, and consequently, everolimus concentrations may decrease if cyclosporine exposure is reduced. [See Drug Interactions (7.2)]

     Therapeutic Drug Monitoring- Tacrolimus in Liver Transplant Patients

Both tacrolimus doses and the target range for whole blood trough concentrations should be reduced, when given in a regimen with Zortress, in order to minimize the potential risk of nephrotoxicity. [See Warnings and Precautions (5.6) and Clinical Pharmacology (12.9)]

The recommended tacrolimus therapeutic range when administered with Zortress are whole blood trough (C-0h) concentrations of 3 to 5 ng/mL by three weeks after the first dose of Zortress (approximately Month 2) and through Month 12 post transplant.

The median tacrolimus trough concentrations observed in the clinical trial ranged between 8.6 to 9.5 ng/mL at Weeks 2 and 4 post-transplant (prior to initiation of everolimus). The median tacrolimus trough concentrations ranged between 7 to 8.1 ng/mL at Weeks 5 and 6 post-transplant, between 5.2 to 5.6 ng/mL at Months 2 and 3 post-transplant, and between 4.3 to 4.9 ng/mL between Months 4 and 12 post-transplant. [See Clinical Pharmacology (12.9) and Clinical Studies (14.2)]

Tacrolimus is to be administered as oral capsules twice daily unless intravenous administration of tacrolimus cannot be avoided.

In liver transplant patients, the tacrolimus dose should be based on tacrolimus whole blood trough concentrations. [See Clinical Pharmacology (12.9)]

In liver transplantation, there are limited data regarding dosing Zortress with reduced tacrolimus trough concentrations of 3 to 5 ng/mL after 12 months. Prior to dose reduction of tacrolimus it should be ascertained that the steady-state everolimus whole blood trough concentration is at least 3 ng/mL. Unlike the interaction between cyclosporine and everolimus, tacrolimus does not affect everolimus trough concentrations, and consequently, everolimus concentrations do not decrease if the tacrolimus exposure is reduced.

     Administration

Zortress tablets should be swallowed whole with a glass of water and not crushed before use.

Administer Zortress consistently approximately 12 hours apart with or without food to minimize variability in absorption and at the same time as cyclosporine or tacrolimus. [See Clinical Pharmacology (12.5)]

     Hepatic Impairment

Whole blood trough concentrations of everolimus should be closely monitored in patients with impaired hepatic function. For patients with mild hepatic impairment (Child-Pugh Class A), the initial daily dose should be reduced by approximately one-third of the normally recommended daily dose. For patients with moderate or severe hepatic impairment (Child-Pugh B or C), the initial daily dose should be reduced to approximately one-half of the normally recommended daily dose. Further dose adjustment and/or dose titration should be made if a patient’s whole blood trough concentration of everolimus, as measured by an LC/MS/MS assay, is not within the target trough concentration range of 3 to 8 ng/mL. [See Clinical Pharmacology (12.5)]

    DOSAGE FORMS AND STRENGTHS

Zortress is available as 0.25 mg, 0.5 mg, and 0.75 mg tablets.

Table 1. Description of Zortress (everolimus) Tablets
Dosage Strength 0.25 mg 0.5 mg 0.75 mg
Appearance White to yellowish, marbled, round, flat tablets with bevelled edge
Imprint “C” on one side and “NVR” on the other “CH” on one side and “NVR” on the other “CL” on one side and “NVR” on the other

    CONTRAINDICATIONS

     Hypersensitivity Reactions

Zortress is contraindicated in patients with known hypersensitivity to everolimus, sirolimus, or to components of the drug product. 

    WARNINGS AND PRECAUTIONS

     Management of Immunosuppression

Only physicians experienced in management of systemic immunosuppressant therapy in transplantation should prescribe Zortress. Patients receiving the drug should be managed in facilities equipped and staffed with adequate laboratory and supportive medical resources. The physician responsible for the maintenance therapy should have complete information requisite for the follow-up of the patient. 

     Lymphomas and Other Malignancies

Patients receiving immunosuppressants, including Zortress, are at increased risk of developing lymphomas and other malignancies, particularly of the skin. The risk appears to be related to the intensity and duration of immunosuppression rather than to the use of any specific agent.

As usual for patients with increased risk for skin cancer, exposure to sunlight and ultraviolet light should be limited by wearing protective clothing and using a sunscreen with a high protection factor.

     Serious Infections

Patients receiving immunosuppressants, including Zortress, are at increased risk of developing bacterial, viral, fungal, and protozoal infections, including opportunistic infections. [See Warnings and Precautions (5.13) and Adverse Reactions (6.1, 6.2)] These infections may lead to serious, including fatal, outcomes. Because of the danger of over immunosuppression, which can cause increased susceptibility to infection, combination immunosuppressant therapy should be used with caution.

Antimicrobial prophylaxis for Pneumocystis jiroveci (carinii) pneumonia and prophylaxis for cytomegalovirus (CMV) is recommended in transplant recipients.

     Kidney Graft Thrombosis

An increased risk of kidney arterial and venous thrombosis, resulting in graft loss, has been reported, usually within the first 30 days post-transplantation. [See Boxed Warning]

     Hepatic Artery Thrombosis

Mammalian target of rapamycin (mTOR) inhibitors are associated with an increase in hepatic artery thrombosis (HAT). Reported cases mostly have occurred within the first 30 days post-transplant and most also lead to graft loss or death. Therefore, Zortress should not be administered earlier than 30 days after liver transplant.

     Zortress and Calcineurin Inhibitor-Induced Nephrotoxicity

In kidney transplant recipients, Zortress with standard dose cyclosporine increases the risk of nephrotoxicity resulting in a lower glomerular filtration rate. Reduced doses of cyclosporine are required for use in combination with Zortress in order to reduce renal dysfunction. [See Boxed Warning, Indications and Usage (1.1), Clinical Pharmacology (12.8)]

In liver transplant recipients, Zortress has not been studied with standard dose tacrolimus. Reduced doses of tacrolimus should be used in combination with Zortress in order to minimize the potential risk of nephrotoxicity. [See Indications and Usage (1.2), Clinical Pharmacology (12.9)]

Renal function should be monitored during the administration of Zortress. Consider switching to other immunosuppressive therapies if renal function does not improve after dose adjustments or if the dysfunction is thought to be drug related. Caution should be exercised when using other drugs which are known to impair renal function.

     Heart Transplantation

In a clinical trial of de novo heart transplant patients, Zortress in an immunosuppressive regimen with or without induction therapy, resulted in an increased mortality often associated with serious infections within the first three months post-transplantation compared to the control regimen. Use of Zortress in heart transplantation is not recommended.

     Angioedema

Zortress has been associated with the development of angioedema. The concomitant use of Zortress with other drugs known to cause angioedema, such as angiotensin converting enzyme (ACE) inhibitors may increase the risk of developing angioedema.

     Wound Healing and Fluid Accumulation

Zortress increases the risk of delayed wound healing and increases the occurrence of wound-related complications like wound dehiscence, wound infection, incisional hernia, lymphocele and seroma. These wound-related complications may require more surgical intervention. Generalized fluid accumulation, including peripheral edema (e.g., lymphoedema) and other types of localized fluid collection, such as pericardial and pleural effusions and ascites have also been reported.

     Interstitial Lung Disease/Non-Infectious Pneumonitis

A diagnosis of interstitial lung disease (ILD) should be considered in patients presenting with symptoms consistent with infectious pneumonia but not responding to antibiotic therapy and in whom infectious, neoplastic and other non-drug causes have been ruled-out through appropriate investigations. Cases of ILD have been reported with Zortress, which generally resolve on drug interruption with or without glucocorticoid therapy. However, fatal cases have also occurred.

     Hyperlipidemia

Increased serum cholesterol and triglycerides, requiring the need for anti-lipid therapy, have been reported to occur following initiation of Zortress and the risk of hyperlipidemia is increased with higher everolimus whole blood trough concentrations. [See Adverse Reactions (6.2)] Use of anti-lipid therapy may not normalize lipid levels in patients receiving Zortress. 

Any patient who is administered Zortress should be monitored for hyperlipidemia. If detected, interventions, such as diet, exercise, and lipid-lowering agents should be initiated as outlined by the National Cholesterol Education Program guidelines. The risk/benefit should be considered in patients with established hyperlipidemia before initiating an immunosuppressive regimen containing Zortress. Similarly, the risk/benefit of continued Zortress therapy should be re-evaluated in patients with severe refractory hyperlipidemia. Zortress has not been studied in patients with baseline cholesterol levels >350 mg/dL.

Due to an interaction with cyclosporine, clinical trials of Zortress and cyclosporine in kidney transplant patients strongly discouraged patients from receiving the HMG-CoA reductase inhibitors simvastatin and lovastatin. During Zortress therapy with cyclosporine, patients administered an HMG-CoA reductase inhibitor and/or fibrate should be monitored for the possible development of rhabdomyolysis and other adverse effects, as described in the respective labeling for these agents. [See Drug Interactions (7.7)]

     Proteinuria

The use of Zortress in transplant patients has been associated with increased proteinuria. The risk of proteinuria increased with higher everolimus whole blood trough concentrations. Patients receiving Zortress should be monitored for proteinuria. [See Adverse Reactions (6.2)]

     Polyoma Virus Infections

Patients receiving immunosuppressants, including Zortress, are at increased risk for opportunistic infections; including polyoma virus infections. Polyoma virus infections in transplant patients may have serious, and sometimes fatal, outcomes. These include polyoma virus-associated nephropathy (PVAN), mostly due to BK virus infection, and JC virus associated progressive multiple leukoencephalopathy (PML). PVAN has been observed in patients receiving immunosuppressants, including Zortress. PVAN is associated with serious outcomes; including deteriorating renal function and kidney graft loss. [See Adverse Reactions (6.2)] Patient monitoring may help detect patients at risk for PVAN. Reductions in immunosuppression should be considered for patients who develop evidence of PVAN or PML. Physicians should also consider the risk that reduced immunosuppression represents to the functioning allograft.

     Interaction with Strong Inhibitors and Inducers of CYP3A4

Co-administration of Zortress with strong CYP3A4-inhibitors (e.g., ketoconazole, itraconazole, voriconazole, clarithromycin, telithromycin, ritonavir, boceprevir, telaprevir) and strong CYP3A4 inducers (e.g., rifampin, rifabutin) is not recommended without close monitoring of everolimus whole blood trough concentrations. [See Drug Interactions (7)]

     Thrombotic Microangiopathy/Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome (TMA/TTP/HUS)

The concomitant use of Zortress with cyclosporine may increase the risk of thrombotic microangiopathy/thrombotic thrombocytopenic purpura/hemolytic uremic syndrome. Monitor hematologic parameters. [See Adverse Reactions (6.2)]

     New Onset Diabetes After Transplant

Zortress has been shown to increase the risk of new onset diabetes mellitus after transplant. Blood glucose concentrations should be monitored closely in patients using Zortress.

     Male Infertility

Azospermia or oligospermia may be observed. [See Adverse Reactions (6.2) and Carcinogenesis, Mutagenesis, Impairment of Fertility (13.1)] Zortress is an anti-proliferative drug and affects rapidly dividing cells like the germ cells.

     Immunizations

The use of live vaccines should be avoided during treatment with Zortress; examples include (not limited to) the following: intranasal influenza, measles, mumps, rubella, oral polio, BCG, yellow fever, varicella, and TY21a typhoid vaccines.

     Interaction with Grapefruit Juice

Grapefruit and grapefruit juice inhibit cytochrome P450 3A4 and P-gp activity and should therefore be avoided with concomitant use of Zortress and cyclosporine or tacrolimus.

     Patients with Hereditary Disorders/Other

Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption should not take Zortress as this may result in diarrhea and malabsorption.

    ADVERSE REACTIONS

     Serious and Otherwise Important Adverse Reactions

The following adverse reactions are discussed in greater detail in other sections of the label.

  • Hypersensitivity reactions [See Contraindications (4.1)]
  • Lymphomas and Other Malignancies [See Boxed Warning, Warnings and Precautions (5.2)]
  • Serious Infections [See Warnings and Precautions (5.3)]
  • Kidney Graft Thrombosis [See Warnings and Precautions (5.4)]
  • Hepatic Artery Thrombosis [See Warnings and Precautions (5.5)]
  • Zortress and Calcineurin Inhibitor-Induced Nephrotoxicity [See Warnings and Precautions (5.6)]
  • Heart Transplantation [See Warnings and Precautions (5.7)]
  • Angioedema [See Warnings and Precautions (5.8)]
  • Wound Healing and Fluid Accumulation [See Warnings and Precautions (5.9)]
  • Interstitial Lung Disease/Non-Infectious Pneumonitis [See Warnings and Precautions (5.10)]
  • Hyperlipidemia [See Warnings and Precautions (5.11)]
  • Proteinuria [See Warnings and Precautions (5.12)]
  • Polyoma Virus Infections [See Warnings and Precautions (5.13)]
  • Thrombotic Microangiopathy/Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome (TMA/TTP/HUS) [See Warnings and Precautions (5.15)]
  • New Onset Diabetes After Transplant [See Warnings and Precautions (5.16)]
  • Male Infertility [See Warnings and Precautions (5.17)]

     Clinical Studies Experience

Because clinical trials are conducted under widely varying conditions, the adverse reaction rates observed cannot be directly compared to rates in other trials and may not reflect the rates observed in clinical practice.

Kidney transplantation

The data described below reflect exposure to Zortress in an open-label, randomized trial of de novo kidney transplant patients of concentration-controlled everolimus at an initial Zortress starting dose of 1.5 mg per day [target trough concentrations 3 to 8 ng/mL with reduced exposure cyclosporine (N=274) compared to mycophenolic acid (N=273) with standard exposure cyclosporine]. All patients received basiliximab induction therapy and corticosteroids. The population was between 18 and 70 years, more than 43% were 50 years of age or older (mean age was 46 years in the Zortress group, 47 years control group); a majority of recipients were male (64% in the Zortress group, 69% control group); and a majority of patients were Caucasian (70% in the Zortress group, 69% control group). Demographic characteristics were comparable between treatment groups. The most frequent diseases leading to transplantation were balanced between groups and included hypertension/nephrosclerosis, glomerulonephritis/glomerular disease and diabetes mellitus. Significantly more patients discontinued Zortress 1.5 mg per day treatment (83/277, 30%) than discontinued the control regimen (60/277, 22%). Of those patients who prematurely discontinued treatment, most discontinuations were due to adverse reactions: 18% in the Zortress group compared to 9% in the control group (p-value = 0.004). This difference was more prominent between treatment groups among female patients. In those patients discontinuing study medication, adverse reactions were collected up to 7 days after study medication discontinuation and serious adverse reactions up to 30 days after study medication discontinuation.

Discontinuation of Zortress at a higher dose (3 mg per day) was 95/279, 34%, including 20% due to adverse reactions, and this regimen is not recommended (see below).

The overall incidences of serious adverse reactions were 57% (159/278) in the Zortress group and 52% (141/273) in the mycophenolic acid group. Infections and infestations reported as serious adverse reactions had the highest incidence in both groups [20% (54/274) in the Zortress group and 25% (69/273) in the control group]. The difference was mainly due to the higher incidence of viral infections in the mycophenolic acid group, mainly CMV and BK virus infections. Injury, poisoning and procedural complications reported as serious adverse reactions had the second highest incidence in both groups [14% (39/274) in the Zortress group and 12% (32/273) in the control group] followed by renal and urinary disorders [10% (28/274) in the Zortress group and 13% (36/273) in the control group] and vascular disorders [10% (26/274) in the Zortress group and 7% (20/273) in the control group].

A total of 13 patients died during the first 12 months of study; 7 (3%) in the Zortress group and 6 (2%) in the control group. The most common causes of death across the study groups were related to cardiac conditions and infections.

There were 12 (4%) graft losses in the Zortress group and 8 (3%) in the control group over the 12 month study period. Of the graft losses, 4 were due to renal artery and two due to renal vein thrombosis in the Zortress group (2%) compared to two renal artery thromboses in the control group (1%). [See Boxed Warning and Warnings and Precautions (5.4)]   

The most common (≥20%) adverse reactions observed in the Zortress group were: peripheral edema, constipation, hypertension, nausea, anemia, urinary tract infection, and hyperlipidemia.

Infections

The overall incidence of bacterial, fungal and viral infections reported as adverse reactions was higher in the control group (68%) compared to the Zortress group (64%) and was primarily due to an increased number of viral infections (21% in the control group and 10% in the Zortress group). The incidence of cytomegalovirus (CMV) infections reported as adverse reactions was 8% in the control group compared to 1% in the Zortress group; and 3% of the serious CMV infections in the control group versus 0% in the Zortress group were considered serious. [See Warnings and Precautions (5.3)]

BK Virus

BK virus infections were lower in incidence in the Zortress group (2 patients, 1%) compared to the control group (11 patients, 4%). One of the two BK virus infections in the Zortress group and two of the 11 BK virus infections in the control group were also reported as serious adverse reactions. BK virus infections did not result in graft loss in any of the groups in the clinical trial.

Wound Healing and Fluid Collections

Wound healing-related reactions were identified through a retrospective search and request for additional data. The overall incidence of wound-related reactions, including lymphocele, seroma, hematoma, dehiscence, incisional hernia, and infections was 35% in the Zortress group compared to 26% in the control group. More patients required intraoperative repair debridement or drainage of incisional wound complications and more required drainage of lymphoceles and seromas in the Zortress group compared to control.

Adverse reactions due to major fluid collections such as edema and other types of fluid collections was 45% in the Zortress group and 40% in the control group. [See Warnings and Precautions (5.9)]

Neoplasms

Adverse reactions due to malignant and benign neoplasms were reported in 3% of patients in the Zortress group and 6% in the control group. The most frequently reported neoplasms in the control group were basal cell carcinoma, squamous cell carcinoma, skin papilloma and seborrheic keratosis. One patient in the Zortress group who underwent a melanoma excision prior to transplantation died due to metastatic melanoma. [See Boxed Warning and Warnings and Precautions (5.2)]

New Onset Diabetes Mellitus (NODM)

NODM reported based on adverse reactions and random serum glucose values, was 9% in the Zortress group compared to 7% in the control group.

Endocrine Effects in Males

In the Zortress group, serum testosterone levels significantly decreased while the FSH levels significantly increased without significant changes being observed in the control group. In both the Zortress and the control groups mean testosterone and FSH levels remained within the normal range with the mean FSH level in the Zortress group being at the upper limit of the normal range (11.1 U/L). More patients were reported with erectile dysfunction in the Zortress treatment group compared to the control group (5% compared to 2%, respectively).

Table 2 compares the incidence of treatment-emergent adverse reactions reported with an incidence of  ≥10% for patients receiving Zortress with reduced dose cyclosporine or mycophenolic acid with standard dose cyclosporine. Within each MedDRA system organ class, the adverse reactions are presented in order of decreasing frequency.

Table 2. Incidence Rates of Frequent (≥10% in Any Treatment Group) Adverse Reactions by Primary System Organ Class and Preferred Term
Primary System Organ Class Preferred Term Zortress (everolimus)
1.5 mg
With reduced exposure
cyclosporine
N=274
n (%)
Mycophenolic acid
1.44 g
With standard exposure
cyclosporine
N=273
n (%)
Any Adverse Reactions* 271 (99) 270 (99)
Blood lymphatic system disorders 93 (34) 111 (41)
       Anemia 70 (26) 68 (25)
       Leukopenia 8 (3) 33 (12)
Gastrointestinal disorders  196 (72) 207 (76)
       Constipation 105 (38) 117 (43)
       Nausea 79 (29) 85 (31)
       Diarrhea 51 (19) 54 (20)
       Vomiting 40 (15) 60 (22)
       Abdominal pain 36 (13) 42 (15)
       Dyspepsia 12 (4) 31 (11)
       Abdominal pain upper 9 (3) 30 (11)
General disorders and administrative site conditions 181 (66) 160 (59)
       Edema peripheral 123 (45) 108 (40)
       Pyrexia 51 (19) 40 (15)
       Fatigue 25 (9) 28 (10)
Infections and infestations 169 (62) 185 (68)
       Urinary tract infection 60 (22) 63 (23)
       Upper respiratory tract infection 44 (16) 49 (18)
Injury, poisoning and procedural complications 163 (60) 163 (60)
       Incision site pain 45 (16) 47 (17)
       Procedural pain 40 (15) 37 (14)
Investigations 137 (50) 133 (49)
       Blood creatinine increased 48 (18) 59 (22)
Metabolism and nutrition disorders 222 (81) 199 (73)
       Hyperlipidemia 57 (21) 43 (16)
       Hyperkalemia 49 (18) 48 (18)
       Hypercholesterolemia 47 (17) 34 (13)
       Dyslipidemia 41 (15) 24 (9)
       Hypomagnesemia 37 (14) 40 (15)
       Hypophosphatemia 35 (13) 35 (13)
       Hyperglycemia 34 (12) 38 (14)
       Hypokalemia 32 (12) 32 (12)
Musculoskeletal and connective tissue disorders 112 (41) 105 (39)
       Pain in extremity 32 (12) 29 (11)
       Back pain 30 (11) 28 (10)
Nervous system disorders 92 (34) 109 (40)
       Headache 49 (18) 40 (15)
       Tremor 23 (8) 38 (14)
Psychiatric disorders 90 (33) 72 (26)
       Insomnia 47 (17) 43 (16)
Renal and urinary disorders 112 (41) 124 (45)
       Hematuria 33 (12) 33 (12)
       Dysuria 29 (11) 28 (10)
Respiratory, thoracic and mediastinal disorders 86 (31) 93 (34)
       Cough 20 (7) 30 (11)
Vascular disorders 122 (45) 124 (45)
       Hypertension 81 (30) 82 (30)

* As reported in the safety analysis population defined as all randomized patients who received at least one dose of treatment and had at least one post-baseline safety assessment.

Adverse reaction that occurred with at least a 5% higher frequency in the Zortress 1.5 mg group compared to the control group were: peripheral edema (45% compared to 40%), hyperlipidemia (21% compared to 16%), dyslipidemia (15% compared to 9%), and stomatitis/mouth ulceration (8% compared to 3%).

A third treatment group of Zortress 3.0 mg per day (1.5 mg twice daily; target trough concentrations 6 to 12 ng/mL) with reduced exposure cyclosporine was included in the study described above. Although as effective as the lower dose Zortress group, the overall safety was worse and consequently higher doses of Zortress cannot be recommended. Out of 279 patients, 95 (34%) discontinued the study medication with 57 (20%) doing so because of adverse reactions. The most frequent adverse reactions leading to discontinuation of Zortress when used at this higher dose were injury, poisoning and procedural complications (Zortress 1.5 mg: 5%, Zortress 3.0 mg: 7%, and control: 2%), infections (2%, 6%, and 3%, respectively), renal and urinary disorders (4%, 7%, and 4%, respectively) and gastrointestinal disorders (1%, 3%, and 2%).

The combination of fixed dose Zortress and standard doses cyclosporine in previous kidney clinical trials resulted in frequent elevations of serum creatinine with higher mean and median serum creatinine values was observed than in the current study with reduced exposure cyclosporine. These results indicate that Zortress increases the cyclosporine-induced nephrotoxicity; and therefore should only be used in a concentration-controlled regimen with reduced exposure cyclosporine. [See Boxed Warnings, Indications and Usage (1.1) and Warnings and Precautions (5.6)]

Liver transplantation

The data described below reflect exposure to Zortress starting 30 days after transplantation in an open-label, randomized trial of liver transplant patients. Seven hundred and nineteen (719) patients who fulfilled the inclusion/exclusion criteria [see Clinical Trials section (14.2)] were randomized into one of the three treatment groups of the study. During the first 30 days prior to randomization patients received tacrolimus and corticosteroids, with or without mycophenolate mofetil (about 70 to 80% received MMF). No induction antibody was administered. At randomization, MMF was discontinued and patients were randomized to Zortress initial dose of 1.0 mg twice per day (2.0 mg daily) and adjusted to protocol specified target trough concentrations of 3 to 8 ng/mL with reduced exposure tacrolimus [protocol specified target troughs 3 to 5 ng/mL] (N=245) or to a control group of standard exposure tacrolimus [protocol specified target troughs 8 to 12 ng/mL up to Month 4 post-transplant, then 6 to 10 ng/mL Month 4 through Month 12 post-transplant] (N=241). A third randomized group was discontinued prematurely [See Clinical Studies (14.2)] and is not described in this section.

The population was between 18 and 70 years, more than 50% were 50 years of age (mean age was 54 years in the Zortress group, 55 years in the tacrolimus control group); 74% were male in both Zortress and control groups, respectively, and a majority were Caucasian (86% Zortress group, 80% control group). Demographic characteristics were comparable between treatment groups. The most frequent diseases leading to transplantation were balanced between groups. The most frequent causes of end-stage liver disease (ESLD) were alcoholic cirrhosis, hepatitis C, and hepatocellular carcinoma and were balanced between groups.

Twenty-seven percent discontinued study drug in the Zortress group compared with 22% for the tacrolimus control group. The most common reason for discontinuation of study medication was due to adverse reactions (19% and 11%, respectively), including proteinuria, recurrent hepatitis C, and pancytopenia in the Zortress group.

The overall incidences of serious adverse reactions were 50% (122/245) in the Zortress group and 43% (104/241) in the control group. Infections and infestations were reported as serious adverse reactions with the highest incidence followed by Gastrointestinal disorders and Hepatobiliary disorders.

During the first 12 months of study, 13 deaths were reported in the Zortress group (one patient never took Zortress). In the same 12 month period, 7 deaths were reported in the tacrolimus control group. Deaths occurred in both groups for a variety of reasons and were mostly associated with liver-related issues, infections and sepsis.

The most common adverse reactions (reported for ≥10% patients in any group) in the Zortress group were: diarrhea, headache, peripheral edema, hypertension, nausea, pyrexia, abdominal pain, and leukopenia (see Table 3).

Infections

The overall incidence of infections reported as adverse reactions was 50% for Zortress and 44% in the control group. The types of infections were reported as follows: bacterial 16% vs 12%, viral 17% vs 13%; and fungal infections 2% vs 5% for Zortress and control, respectively. [See Warnings and Precautions (5.3)]

Wound Healing and Fluid Collections

Wound healing complications were reported as adverse reactions for 11% of patients in the Zortress group compared to 8% of patients in the control group. Pleural effusions were reported in 5% in both groups, and ascites in 4% of patients in the Zortress group and 3% in the control arm.

Neoplasms

Malignant and benign neoplasms were reported as adverse reactions in 4% of patients in the Zortress group and 7% in the control group. In the Zortress group 3 malignant tumors were reported compared to 9 cases in the control group. For the Zortress group this included lymphoma, lymphoproliferative disorder and a hepatocellular carcinoma, and for the control group included Kaposi’s sarcoma (2), metastatic colorectal cancer, glioblastoma, malignant hepatic neoplasm, pancreatic neuroendocrine tumor, hemophagocytic histiocytosis, and squamous cell carcinomas. [See Boxed Warning and Warnings and Precautions (5.2)]

Lipid abnormalities

Hyperlipidemia adverse reactions (including the preferred terms: hyperlipidemia, hypercholesterolemia, blood cholesterol increased, blood triglycerides increased, hypertriglyceridemia lipids increased, total cholesterol/HDL ratio increased, and dyslipidemia) were reported for 24% Zortress patients, and 10% control patients.

New Onset of Diabetes After Transplant (NODAT)

Of the patients without diabetes mellitus at randomization, NODAT was reported in 32% in the Zortress group compared to 29% in the control group.

Table 3 compares the incidence of treatment-emergent adverse reactions reported with an incidence of ≥10% for patients receiving Zortress with reduced exposure tacrolimus or standard dose tacrolimus. Within each MedDRA system organ class, the adverse reactions are presented in order of decreasing frequency.

Table 3. Incidence Rates of most Frequent (≥ 10% in Any Treatment Group) Adverse Reactions by Primary System Organ Class and Preferred Term and treatment (Safety population – 12 month analysis)
Primary System Organ Class Preferred Term Zortress (everolimus)
with reduced exposure
Tacrolimus
N=245
n (%)
Tacrolimus
(standard exposure)

N=241
n (%)
Any Adverse Reaction/Infection 232 (95) 229 (95)
Blood & lymphatic system disorders 66 (27) 47 (20)
       Leukopenia 29 (12) 12 (5)
Gastrointestinal disorders 136 (56) 121 (50)
       Diarrhea 47 (19) 50 (21)
       Nausea 33 (14) 28 (12)
       Abdominal pain 32 (13) 22 (9)
General disorders and administration site conditions 94 (38) 85 (35)
       Peripheral edema 43 (18) 26 (11)
       Pyrexia 32 (13) 25 (10)
       Fatigue 22 (9) 26 (11)
Infections and infestations 123 (50) 105 (44)
       Hepatitis C* 28 (11) 19 (8)
Investigations 81 (33) 78 (32)
       Liver function test abnormal 16 (7) 24 (10)
Nervous system disorders 89 (36) 85 (35)
       Headache 47 (19) 46 (19)
       Tremor 23 (9) 29 (12)
Vascular disorders 56 (23) 57 (24)
       Hypertension 42 (17) 38 (16)

Primary system organ classes are presented alphabetically.

* No de novo hepatitis C cases were reported

Less common adverse reactions, occurring overall in ≥1% to <10% of kidney and liver transplant patients treated with Zortress include:

Blood and Lymphatic System Disorders: leukocytosis, lymphadenopathy, neutropenia, pancytopenia, thrombocythemia, thrombocytopenia

Cardiac and Vascular Disorders: angina pectoris, atrial fibrillation, cardiac failure congestive, palpitations, tachycardia, hypertension including hypertensive crisis, hypotension, deep vein thrombosis

Endocrine Disorders: Cushingoid, hyperparathyroidism

Eye Disorders: cataract, conjunctivitis, vision blurred

Gastrointestinal Disorders: abdominal distention, dyspepsia, dysphagia, epigastric discomfort, flatulence, gastroesophageal reflux disease, gingival hypertrophy, hematemesis, hemorrhoids, ileus, mouth ulceration, peritonitis, stomatitis

General Disorders and Administrative Site Conditions: chest discomfort, chest pain, chills, fatigue, incisional hernia, malaise, edema including generalized edema, pain

Hepatobiliary Disorders: hepatic enzyme increased, bilirubin increased

Infections and Infestations: BK virus infection [See Warnings and Precautions (5.13)], bacteremia, bronchitis, candidiasis, cellulitis, folliculitis, gastroenteritis, herpes infections, influenza, lower respiratory tract, nasopharyngitis, onychomycosis, oral candidiasis, oral herpes, osteomyelitis, pneumonia, pyelonephritis, sepsis, sinusitis, tinea pedis, urethritis, wound infection [See Boxed Warning and Warnings and Precautions (5.3)]

Injury Poisoning and Procedural Complications: incision site complications including infections, perinephric collection, seroma, wound dehiscence, incisional hernia, perinephric hematoma, localized intraabdominal fluid collection, impaired healing, lymophocele, lymphorrhea

Investigations: blood alkaline phosphatase increased, white blood cell count decreased, transaminases increased

Metabolism and Nutrition Disorders: blood urea increased, acidosis, anorexia, dehydration, diabetes mellitus [See Warnings and Precautions (5.16)], decreased appetite, fluid retention, gout, hypercalcemia, hypertriglyceridemia, hyperuricemia, hypocalcemia, hypoglycemia, hyponatremia, iron deficiency, new onset diabetes mellitus, vitamin B12 deficiency

Musculoskeletal and Connective Tissues Disorders: arthralgia, joint swelling, muscle spasms, muscular weakness, musculoskeletal pain, myalgia, osteonecrosis, osteopenia, osteoporosis, spondylitis

Nervous System Disorders: dizziness, hemiparesis, hypoaesthesia, lethargy, migraine, neuralgia, paresthesia, somnolence, syncope, tremor

Psychiatric Disorders: agitation, anxiety, depression, hallucination

Renal and Urinary Disorders: bladder spasm, hydronephrosis, micturation urgency, nephritis interstitial, pollakiuria, polyuria, proteinuria [See Warnings and Precautions (5.12)], pyuria, renal artery thrombosis [See Boxed Warning and Warnings and Precautions (5.4)], acute renal failure, renal impairment [See Warnings and Precautions (5.6)], urinary retention

Reproductive System and Breast Disorders: erectile dysfunction, ovarian cyst, scrotal edema

Respiratory, Thoracic, Mediastinal Disorders: atelectasis, dyspnea, epistaxis, nasal congestion, oropharyngeal pain, pleural effusions, pulmonary edema, rhinorrhea, sinus congestion, wheezing

Skin and Subcutaneous Tissue Disorders: acne, alopecia, dermatitis acneiform, hirsutism, hyperhydrosis, hypertrichosis, night sweats, pruritus, rash

Vascular Disorders: venous thromboembolism (including deep vein thrombosis), pulmonary embolism

Less common, serious adverse reactions include:

  • Interstitial Lung Disease/Non-infectious Pneumonitis [See Warnings and Precautions (5.10) and Adverse Reactions (6.1)]
  • Thrombotic Microangiopathy (TMA), Thrombotic Thrombocytopenic Purpura (TTP), and Hemolytic Uremic Syndrome (HUS) [See Warnings and Precautions (5.15)]

     Post Marketing Experience

Adverse reactions identified from the post-marketing use of the combination regimen of Zortress and cyclosporine that are not specific to any one transplant indication include angioedema [See Warnings and Precautions (5.8)], pancreatitis and pulmonary embolism. There have also been reports of male infertility with mTOR inhibitors including Zortress. [See Warnings and Precautions (5.17)]

    DRUG INTERACTIONS

     Interactions with Strong Inhibitors or Inducers of CYP3A4 and P-glycoprotein

Everolimus is mainly metabolized by CYP3A4 in the liver and to some extent in the intestinal wall and is a substrate for the multidrug efflux pump, P-glycoprotein (P-gp). Therefore, absorption and subsequent elimination of systemically absorbed everolimus may be influenced by medicinal products that affect CYP3A4 and/or P-gp. Concurrent treatment with strong inhibitors (e.g., ketoconazole, itraconazole, voriconazole, clarithromycin, telithromycin, ritonavir, boceprevir, telaprevir) and inducers (e.g., rifampin, rifabutin) of CYP3A4 is not recommended. Inhibitors of P-gp (e.g., digoxin, cyclosporine) may decrease the efflux of everolimus from intestinal cells and increase everolimus blood concentrations. In vitro, everolimus was a competitive inhibitor of CYP3A4 and of  CYP2D6, potentially increasing the concentrations of medicinal products eliminated by these enzymes. Thus, caution should be exercised when co-administering Zortress with CYP3A4 and CYP2D6 substrates with a narrow therapeutic index. [See Therapeutic Drug Monitoring (2.3)]

All in vivo interaction studies were conducted without concomitant cyclosporine. Pharmacokinetic interactions between Zortress and concomitantly administered drugs are discussed below. Drug interaction studies have not been conducted with drugs other than those described below.

     Cyclosporine (CYP3A4/P-gp inhibitor and CYP3A4 substrate)

The steady-state Cmax and AUC estimates of everolimus were significantly increased by co-administration of single dose cyclosporine. [See Clinical Pharmacology (12.5)] Dose adjustment of Zortress might be needed if the cyclosporine dose is altered. [See Dosage and Administration (2.3)] Zortress had a clinically minor influence on cyclosporine pharmacokinetics in transplant patients receiving cyclosporine (Neoral).

     Ketoconazole and Other Strong CYP3A4 Inhibitors

Multiple-dose ketoconazole administration to healthy volunteers significantly increased single dose estimates of everolimus Cmax, AUC, and half-life. It is recommended that strong inhibitors of CYP3A4 (e.g., ketoconazole, itraconazole, voriconazole, clarithromycin, telithromycin, ritonavir, boceprevir, telaprevir) should not be co-administered with Zortress. [See Warnings and Precautions (5.14), and Clinical Pharmacology (12.5)]

     Erythromycin (Moderate CYP3A4 Inhibitor)

Multiple-dose erythromycin administration to healthy volunteers significantly increased single dose estimates of everolimus Cmax, AUC, and half-life. If erythromycin is co-administered, everolimus blood concentrations should be monitored and a dose adjustment made as necessary. [See Clinical Pharmacology (12.5)]

     Verapamil (CYP3A4 and P-gp Substrate)

Multiple-dose verapamil administration to healthy volunteers significantly increased single dose estimates of everolimus Cmaxand AUC. Everolimus half-life was not changed. If verapamil is co-administered, everolimus blood concentrations should be monitored and a dose adjustment made as necessary. [See Clinical Pharmacology (12.5)]

     Atorvastatin (CYP3A4 substrate) and Pravastatin (P-gp substrate)

Single-dose administration of Zortress with either atorvastatin or pravastatin to healthy subjects did not influence the pharmacokinetics of atorvastatin, pravastatin and everolimus, as well as total HMG-CoA reductase bioreactivity in plasma to a clinically relevant extent. However, these results cannot be extrapolated to other HMG-CoA reductase inhibitors. Patients should be monitored for the development of rhabdomyolysis and other adverse reactions as described in the respective labeling for these products. 

     Simvastatin and Lovastatin

Due to an interaction with cyclosporine, clinical studies of Zortress with cyclosporine conducted in kidney transplant patients strongly discouraged patients with receiving HMG-CoA reductase inhibitors such as simvastatin and lovastatin. [See Warnings and Precautions (5.11)]

     Rifampin (Strong CYP3A4/P-gp Inducers)

Pretreatment of healthy subjects with multiple-dose rifampin followed by a single dose of Zortress increased everolimus clearance and decreased the everolimus Cmax and AUC estimates. Combination with rifampin is not recommended. [See Warnings and Precautions (5.14) and Clinical Pharmacology (12.5)]

     Midazolam (CYP3A4/5 substrate)

Single-dose administration of midazolam to healthy volunteers following administration of multiple-dose Zortress indicated that everolimus is a weak inhibitor of CYP3A4/5. Dose adjustment of midazolam or other CYP3A4/5 substrates is not necessary when Zortress is coadministered with midazolam or other CYP3A4/5 substrates. [See Clinical Pharmacology (12.5)]

     Other Possible Interactions

Moderate inhibitors of CYP3A4 and P-gp may increase everolimus blood concentrations (e.g., fluconazole; macrolide antibiotics; nicardipine, diltiazem; nelfinavir, indinavir, amprenavir). Inducers of CYP3A4 may increase the metabolism of everolimus and decrease everolimus blood concentrations (e.g., St. John’s Wort [Hypericum perforatum]; anticonvulsants: carbamazepine, phenobarbital, phenytoin; efavirenz, nevirapine).

     Tacrolimus

There is little to no pharmacokinetic interaction of tacrolimus on everolimus, and consequently, dose adjustment of Zortress is not necessary when Zortress is co-administered with tacrolimus.

    USE IN SPECIFIC POPULATIONS

     Pregnancy

Pregnancy Category C 

There are no adequate and well-controlled studies of Zortress in pregnant women. In rats and rabbits, everolimus crossed the placenta and was toxic to the conceptus. The potential risk for humans is unknown. Zortress should be given to pregnant women only if the potential benefit to the mother justifies the potential risk to the fetus. Women of childbearing potential should be advised to use effective contraception methods while they are receiving Zortress and up to 8 weeks after treatment has been stopped.

Everolimus administered daily to pregnant rats by oral gavage at 0.1 mg/kg from before mating through organogenesis resulted in increased preimplantation loss and early resorptions of fetal implants. AUCs in rats at this dose were approximately one-third those in humans administered the starting dose (0.75 mg twice daily). Everolimus administered daily by oral gavage at 0.8 mg/kg to pregnant rabbits during organogenesis resulted in increased late resorptions of fetal implants. At this dose, AUCs in rabbits were slightly less than the AUCs in humans administered the starting clinical dose.   

     Nursing Mothers

It is not known whether everolimus is excreted in human milk. Everolimus and/or its metabolites readily transferred into milk of lactating rats at a concentration 3.5 times higher than in maternal serum. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from everolimus, women should avoid breast-feeding during treatment with Zortress.

     Pediatric Use

The safe and effective use of Zortress in kidney or liver transplant patients younger than 18 years of age has not been established. [See Clinical Pharmacology (12.5)]

     Geriatric Use

There is limited clinical experience on the use of Zortress in patients of age 65 or older. There is no evidence to suggest that elderly patients will require a different dosage recommendation from younger adult patients. [See Clinical Pharmacology (12.5)]

     Hepatic Impairment

Everolimus whole blood trough concentrations should be closely monitored in patients with impaired hepatic function. For patients with mild hepatic impairment (Child-Pugh Class A), the dose should be reduced by approximately one-third of the normally recommended daily dose. For patients with moderate or severe hepatic impairment (Child-Pugh B or C), the initial daily dose should be reduced to approximately half of the normally recommended daily dose. Further dose adjustment and/or dose titration should be made if a patient’s whole blood trough concentration of everolimus, as measured by an LC/MS/MS assay, is not within the target trough concentration range of 3 to 8 ng/mL. [See Clinical Pharmacology (12.5)]

     Renal Impairment

No dose adjustment is needed in patients with renal impairment. [See Clinical Pharmacology (12.5)]

    OVERDOSAGE

Reported experience with overdose in humans is very limited. There is a single case of an accidental ingestion of 1.5 mg everolimus in a 2-year-old child where no adverse reactions were observed. Single doses up to 25 mg have been administered to transplant patients with acceptable acute tolerability. Single doses up to 70 mg (without cyclosporine) have been given with acceptable acute tolerability. General supportive measures should be followed in all cases of overdose. Everolimus is not considered dialyzable to any relevant degree (<10% of everolimus removed within 6 hours of hemodialysis). In animal studies, everolimus showed a low acute toxic potential. No lethality or severe toxicity was observed after single oral doses of 2000 mg/kg (limit test) in either mice or rats.

    DESCRIPTION

Zortress (everolimus) is a macrolide immunosuppressant. 

The chemical name of everolimus is

(1R, 9S, 12S, 15R, 16E, 18R, 19R, 21R, 23S, 24E, 26E, 28E, 30S, 32S, 35R)-1, 18 - dihydroxy - 12  - {(1R) - 2 - [(1S,3R,4R) - 4 - (2 - hydroxyethoxy) - 3 - methoxycyclohexyl] - 1 - methylethyl} - 19,30 - dimethoxy - 15, 17, 21, 23, 29, 35-hexamethyl-11, 36-dioxa-4-aza-tricyclo[30.3.1.04,9] hexatriaconta-16,24,26,28-tetraene-2, 3,10,14,20-pentaone.

The molecular formula is C53H83NO14 and the molecular weight is 958.25. The structural formula is:

Zortress is supplied as tablets for oral administration containing 0.25 mg, 0.5 mg, and 0.75 mg of everolimus together with butylated hydroxytoluene, magnesium stearate, lactose monohydrate, hypromellose, crospovidone and lactose anhydrous as inactive ingredients.

    CLINICAL PHARMACOLOGY 

     Mechanism of Action

Everolimus inhibits antigenic and interleukin (IL-2 and IL-15) stimulated activation and proliferation of T and B lymphocytes.

In cells, everolimus binds to a cytoplasmic protein, the FK506 Binding Protein-12 (FKBP-12), to form an immunosuppressive complex (everolimus: FKBP-12) that binds to and inhibits the mammalian Target Of Rapamycin (mTOR), a key regulatory kinase. In the presence of everolimus phosphorylation of p70 S6 ribosomal protein kinase (p70S6K), a substrate of mTOR, is inhibited. Consequently, phosphorylation of the ribosomal S6 protein and subsequent protein synthesis and cell proliferation are inhibited. The everolimus: FKBP-12 complex has no effect on calcineurin activity.

In rats and nonhuman primate models, everolimus effectively reduces kidney allograft rejection resulting in prolonged graft survival.

     Pharmacokinetics

Everolimus pharmacokinetics have been characterized after oral administration of single and multiple doses to adult kidney transplant patients, hepatically-impaired patients, and healthy subjects.

Absorption

After oral dosing, peak everolimus concentrations occur 1 to 2 h post dose. Over the dose range of 0.5 mg to 2 mg twice daily, everolimus Cmax and AUC are dose proportional in transplant patients at steady-state.

Food Effect

In 24 healthy subjects, a high-fat breakfast (44.5 g fat) reduced everolimus Cmax by 60%, delayed tmax by a median 1.3 hours, and reduced AUC by 16% compared with a fasting administration. To minimize variability, everolimus should be taken consistently with or without food. [See Dosage and Administration (2.6)]

Distribution

The blood-to-plasma ratio of everolimus is concentration dependent ranging from 17% to 73% over the range of 5 ng/mL to 5000 ng/mL. Plasma protein binding is approximately 74% in healthy subjects and in patients with moderate hepatic impairment. The apparent distribution volume associated with the terminal phase (Vz/F) from a single-dose pharmacokinetic study in maintenance kidney transplant patients is 342 to 107 L (range 128 to 589 L).

Metabolism

Everolimus is a substrate of CYP3A4 and P-gp. The main metabolic pathways identified in man were monohydroxylations and O-dealkylations. Two main metabolites were formed by hydrolysis of the cyclic lactone. Everolimus was the main circulating component in blood. None of the main metabolites contribute significantly to the immunosuppressive activity of everolimus.

Excretion

After a single dose of radiolabeled everolimus was given to transplant patients receiving cyclosporine, the majority (80%) of radioactivity was recovered from the feces and only a minor amount (5%) was excreted in urine. Parent drug was not detected in urine and feces.

Pharmacokinetics in Kidney Transplant Patients

Steady-state is reached by Day 4 with an accumulation in blood levels of 2- to 3-fold compared with the exposure after the first dose. Table 4 below provides a summary of the steady-state pharmacokinetic parameters.

Table 4. Steady-State Pharmacokinetic Parameters (mean +/- SD) Following the Administration of 0.75 mg Twice Daily
Cmax Tmax AUC CL/F1 Vc/F1 Half-life (T1/2)
11.1 + 4.6 ng/mL 1-2 h 75 + 31 ng∙h/mL 8.8 L/h 110 L 30 ± 11h

1 population pharmacokinetic analysis

The half-life estimates from 12 maintenance renal transplant patients who received single doses of everolimus capsules at 0.75 mg or 2.5 mg with their maintenance cyclosporine regimen indicate that the pharmacokinetics of everolimus are linear over the clinically-relevant dose range. Results indicate the half-life of everolimus in maintenance renal transplant patients receiving single doses of 0.75 mg or 2.5 mg Zortress during steady-state cyclosporine treatment was 30 ± 11 hours (range 19 to 53 hours).

     Drug-Drug Interactions

Everolimus is known to be a substrate for both cytochrome CYP3A4 and P-gp. The pharmacokinetic interaction between everolimus and concomitantly administered drugs is discussed below. Drug interaction studies have not been conducted with drugs other than those described below. [See Warnings and Precautions (5.14), and Drug Interactions (7)]

Cyclosporine (CYP3A4/P-gp inhibitor and CYP3A4 substrate): Zortress should be taken concomitantly with cyclosporine in kidney transplant patients. Everolimus concentrations may decrease when doses of cyclosporine are reduced, unless the Zortress dose is increased. [See Dosage and Administration (2.1), Drug Interactions (7.2)]

In a single-dose study in healthy subjects, cyclosporine (Neoral) administered at a dose of 175 mg increased everolimus AUC by 168% (range, 46% to 365%) and Cmax by 82% (range, 25% to 158%) when administered with 2 mg Zortress compared with administration of Zortress alone. [See Drug Interactions (7.2)]

Ketoconazole and Other Strong CYP3A4 Inhibitors: Multiple-dose administration of 200 mg ketoconazole twice daily for 5 days to 12 healthy volunteers significantly increased everolimus Cmax, AUC, and half-life by 3.9-fold, 15-fold, and 89%, respectively, when co-administered with 2 mg Zortress. It is recommended that strong inhibitors of CYP3A4 (e.g., ketoconazole, itraconazole, voriconazole, clarithromycin, telithromycin, ritonavir, boceprevir, telaprevir) should not be co-administered with Zortress. [See Warnings and Precautions (5.14) and Drug Interactions (7.3)]

Erythromycin (Moderate CYP3A4 Inhibitor): Multiple-dose administration of 500 mg erythromycin three times daily for 5 days to 16 healthy volunteers significantly increased everolimus Cmax, AUC, and half-life by 2.0-fold, 4.4-fold, and 39%, respectively, when co-administered with 2 mg Zortress. If erythromycin is co-administered, everolimus blood concentrations should be monitored and a dose adjustment made as necessary. [See Drug Interactions (7.4)]

Verapamil (CYP3A4 Inhibitor and P-gp Substrate): Multiple-dose administration of 80 mg verapamil three times daily for 5 days to 16 healthy volunteers significantly increased everolimus Cmax  and AUC by 2.3-fold and 3.5-fold, respectively, when co-administered with 2 mg Zortress. Everolimus half-life was not changed. If verapamil is co-administered, everolimus blood concentrations should be monitored and a dose adjustment made as necessary. [See Drug Interactions (7.5)]

Atorvastatin (CYP3A4 Substrate) and Pravastatin (P-gp Substrate): Following administration of a single dose of 2 mg Zortress to 12 healthy subjects, the concomitant administration of a single oral dose administration of atorvastatin 20 mg or pravastatin 20 mg only slightly decreased everolimus Cmax and AUC by 9% and 10%, respectively. There was no apparent change in the mean T1/2 or median Tmax. In the same study, the concomitant Zortress dose slightly increased the mean Cmax of atorvastatin by 11% and slightly decreased the AUC by 7%. The concomitant Zortress dose decreased the mean Cmax and AUC of pravastatin by 10% and 5%, respectively. No dosage adjustments are needed for concomitant administration of Zortress and atorvastatin and pravastatin. [See Drug Interactions (7.6)]

Midazolam  (CYP3A4/5 Substrate): In 25 healthy male subjects, co-administration of a single dose of midazolam 4 mg oral solution with steady-state everolimus (10 mg daily dose for 5 days) resulted in a 25% increase in midazolam Cmax and a 30% increase in midazolam AUC; whereas, the terminal half-life of midazolam and the metabolic AUC-ratio (1-hydroxymidazolam/midazolam) were not affected. [See Drug Interactions (7.9)]

Rifampin (Strong CYP3A4 and P-gp Inducer): Pretreatment of 12 healthy subjects with multiple-dose rifampin (600 mg once-daily for 8 days) followed by a single dose of 4 mg Zortress increased everolimus clearance nearly 3-fold, and decreased Cmax by 58% and AUC by 63%. Combination with rifampin is not recommended. [See Drug Interactions (7.8)]

     Specific Populations

Hepatic Impairment

Relative to the AUC of everolimus in subjects with normal hepatic function, the average AUC in 6 patients with mild hepatic impairment (Child-Pugh Class A) was 1.6-fold higher following administration of a 10 mg single-dose. In two independently studied groups of 8 and 9 patients with moderate hepatic impairment (Child-Pugh Class B) the average AUC was 2.1-fold and 3.3-fold higher following administration of a 2 mg or a 10 mg single-dose, respectively; and in 6 patients with severe hepatic impairment (Child-Pugh Class C) the average AUC was 3.6-fold higher following administration of a 10 mg single-dose. For patients with mild hepatic impairment (Child-Pugh Class A), the dose should be reduced by approximately one-third of the normally recommended daily dose. For patients with moderate or severe hepatic impairment (Child-Pugh B or C), the initial daily dose should be reduced to approximately one-half of the normally recommended daily dose. Further dose adjustment and/or dose titration should be made if a patient’s whole blood trough concentration of everolimus, as measured by an LC/MS/MS assay, is not within the target trough concentration range of 3 to 8 ng/mL. [See Dosage and Administration (2.7)]

Renal Impairment

No pharmacokinetic studies in patients with renal impairment were conducted. Post-transplant renal function (creatinine clearance range 11 to 107 mL/min) did not affect the pharmacokinetics of everolimus, therefore, no dosage adjustments are needed in patients with renal impairment.

Pediatrics

The safety and efficacy of Zortress has not been established in pediatric patients.

Geriatrics

A limited reduction in everolimus oral CL of 0.33% per year was estimated in adults (age range studied was 16 to 70 years). There is no evidence to suggest that elderly patients will require a different dosage recommendation from younger adult patients.

Race

Based on analysis of population pharmacokinetics, oral clearance (CL/F) is, on average, 20% higher in black transplant patients.

     Everolimus Whole Blood Concentrations Observed in Kidney and in Liver Transplant Patients

Everolimus in Kidney Transplantation

Based on exposure-efficacy and exposure-safety analyses of clinical trials and using an LC/MS/MS assay method, kidney transplant patients achieving everolimus whole blood trough concentrations ≥3.0 ng/mL have been found to have a lower incidence of treated biopsy-proven acute rejection compared with patients whose trough concentrations were below 3.0 ng/mL. Patients who attained everolimus trough concentrations within the range of 6 to 12 ng/mL had similar efficacy and more adverse reactions than patients who attained lower trough concentrations between 3 to 8 ng/mL. [See Dosage and Administration (2.3)]

In the kidney clinical trial [See Clinical Studies (14.1)], everolimus whole blood trough concentrations were measured at Days 3, 7, and 14 and Months 1, 2, 3, 4, 6, 7, 9, and 12. The proportion of patients receiving 0.75 mg twice daily Zortress treatment regimen who had everolimus whole blood trough concentrations within the protocol specified target range of 3 to 8 ng/mL at Days 3, 7, and 14 were 55%, 71% and 69%, respectively. Approximately 80% of patients had everolimus whole blood trough concentrations within the 3 to 8 ng/mL target range by Month 1 and remained stable within range through Month 12. The median everolimus trough concentration for the 0.75 mg twice daily treatment group was between 3 and 8 ng/mL throughout the study duration.

Everolimus in Liver Transplantation

In the liver clinical trial [See Clinical Studies (14.2)] Zortress dosing was initiated after 30 days following transplantation. Whole blood trough everolimus concentrations were measured within 5 days after first dose, followed by weekly intervals for 3 to 4 weeks, and then monthly thereafter. Approximately 49%, 37%, and 18% of patients, respectively, were below 3 ng/mL at 1, 2, and 4 weeks after initiation of Zortress dosing. The majority of patients (approximately 70 to 80%) had everolimus trough blood concentrations within the target range of 3-8 ng/mL after Month 2 through Month 12.

     Cyclosporine Concentrations Observed in Kidney Transplant Patients

In the kidney transplant clinical trial [See Clinical Studies (14.1)], the target cyclosporine whole blood trough concentration for the Zortress treatment arm of 0.75 mg twice daily were 100 to 200 ng/mL through Month 1 post-transplant, 75 to 150 ng/mL at Months 2 and 3 post-transplant, 50 to 100 ng/mL at Month 4 post-transplant, and 25 to 50 ng/mL from Month 6 through Month 12 post-transplant. Table 5 below provides a summary of the observed cyclosporine whole blood trough concentrations during the study.

Table 5. Cyclosporine Trough Concentrations Over 12 Months - Kidney Study Median Values (ng/mL) with 10th and 90th Percentiles
Treatment group Visit N Target
(ng/mL)
Median 10th Percentile 90th Percentile
Zortress
0.75 mg twice daily
Day 3 242 100-200 172 46 388
Day 7 265 100-200 185 75 337
Day 14 243 100-200 182 97 309
Month 1 245 100-200 161 85 274
Month 2 232 75-150 140 84 213
Month 3 220 75-150 111 68 187
Month 4 208 50-100 99 56 156
Month 6 200 25-50 75 43 142
Month 7 199 25-50 59 36 117
Month 9 194 25-50 49 28 91
Month 12 186 25-50 46 25 100

     Tacrolimus Concentrations in Liver Transplant

In the liver transplant clinical trial [See Clinical Studies (14.2)], the target tacrolimus whole blood trough concentrations were greater than or equal to 8 ng/mL in the first 30 days post-transplant. The protocol required that patients had a tacrolimus trough concentration of at least 8 ng/mL in the week prior to initiation of Zortress. Zortress was initiated after 30 days post-transplant. At that time, the target tacrolimus trough concentrations were reduced to 3 to 5 ng/mL. Table 6 below provides a summary of the tacrolimus whole blood trough concentrations observed during the study.

Table 6. Tacrolimus Trough Concentrations Over 12 Months – Liver Study Median Values (ng/mL) with 10th and 90th Percentiles
Treatment group Visit N Target
(ng/mL)
Median 10th Percentile 90th Percentile
Predose group

Zortress
1.0 mg twice daily
(initiated at month 1)
Week 4 234 3-5 9.5 5.8 14.6
Week 5 219 3-5 8.1 4.5 13.8  
Week 6 233 3-5 7.0 4.1 12.0  
Month 2 219 3-5 5.6 3.4 10.3  
Month 3 218 3-5 5.2 3.1 9.7  
Month 4 196 3-5 4.9 2.9 7.7  
Month 5 195 3-5 4.8 2.7 7.3  
Month 6 200 3-5 4.6 3.0 7.5  
Month 9 186 3-5 4.4 2.9 8.0  
Month 12 175 3-5 4.3 2.6 7.3  

    NONCLINICAL TOXICOLOGY

     Carcinogenesis, Mutagenesis, Impairment of Fertility

Everolimus was not carcinogenic in mice or rats when administered daily by oral gavage for 2 years at doses of 0.9 mg/kg. In these studies, AUCs in mice were much higher (at least 20 times) than those in humans receiving 0.75 mg twice daily, and AUCs in rats were in the same range as those in humans receiving 0.75 mg twice daily.

Everolimus was not mutagenic in the bacterial reverse mutation, the mouse lymphoma thymidine kinase assay, or the chromosome aberration assay using V79 Chinese hamster cells, or in vivo following two daily doses of 500 mg/kg in the mouse micronucleus assay.   

In a 13-week male fertility oral gavage study in rats, testicular morphology was affected at 0.5 mg/kg and above, and sperm motility, sperm head count and plasma testosterone concentrations were diminished at 5 mg/kg which caused a decrease in male fertility. There was evidence of reversibility of these findings in animals examined after 13 weeks post-dosing. The 0.5 mg/kg dose in male rats resulted in AUCs in the range of clinical exposures, and the 5 mg/kg dose resulted in AUCs approximately 5 times the AUCs in humans receiving 0.75 mg twice daily. Everolimus did not affect female fertility in nonclinical studies, but everolimus crossed the placenta and was toxic to the conceptus. [See Pregnancy (8.1)]

    CLINICAL STUDIES

     Prevention of Organ Rejection after Renal Transplantation

A 24-month, multi-national, open-label, randomized (1:1:1) trial was conducted comparing two concentration-controlled Zortress regimens of 1.5 mg per day starting dose (targeting 3 to 8 ng/mL using an LC/MS/MS assay method and 3.0 mg per day starting dose (targeting 6 to 12 ng/mL using an LC/MS/MS assay method) with reduced exposure cyclosporine and corticosteroids, to 1.44 g per day of mycophenolic acid with standard exposure cyclosporine and corticosteroids. The mean cyclosporine starting dose was 5.2, 5.0 and 5.7 mg/kg body weight/day in the Zortress 1.5 mg, 3.0 mg and in mycophenolic acid groups, respectively. The cyclosporine dose in the Zortress group was then adjusted to the blood trough concentration ranges indicated in Table 5, whereas in the mycophenolic acid group the target ranges were 200-300 ng/mL starting Day 5: 200-300 ng/mL, and 100-250 ng/mL from Month 2 to Month 12.

All patients received basiliximab induction therapy. The study population consisted of 18 to 70 year old male and female low to moderate risk renal transplant recipients undergoing their first transplant. Low to moderate immunologic risk was defined in the study as an ABO blood type compatible first organ or tissue transplant recipient with anti-HLA Class I PRA <20% by a complement dependent cytotoxicity-based assay, or <50% by a flow cytometry or ELISA-based assay, and with a negative T-cell cross match. Eight hundred thirty-three (833) patients were randomized after transplantation; 277 randomized to the Zortress 1.5 mg per day group, 279 to the Zortress 3.0 mg per day group and 277 to the mycophenolic acid 1.44 g per day group. The study was conducted at 79 renal transplant centers across Europe, South Africa, North and South America, and Asia-Pacific. There were no major baseline differences between treatment groups with regard to recipient or donor disease characteristics. The majority of transplant recipients in all groups (70% to 76%) had three or more HLA mismatches; mean percentage of panel reactive antibodies ranged from 1% to 2%. The rate of premature treatment discontinuation at 12 months was 30% and 22% in the Zortress 1.5 mg and control groups, respectively, (p=0.03, Fisher’s exact test) and was more prominent between groups among female patients. Results at 12 months indicated that Zortress 1.5 mg per day is comparable to control with respect to efficacy failure, defined as treated biopsy-proven acute rejection*, graft loss, death or loss to follow-up. The percentage of patients experiencing this endpoint and each individual variable in the Zortress and control groups is shown in Table 7.

Table 7. Efficacy Failure by Treatment Group (ITT Population) at 12 Months
Zortress (everolimus)
1.5 mg per day
With reduced exposure CsA
N=277

n (%)
Mycophenolic Acid 
1.44 g per day
With standard exposure CsA
N=277

n (%)
Efficacy Endpoints1
Efficacy Failure Endpoint2 70 (25.3) 67 (24.2)
Treated Biopsy Proven Acute Rejection 45 (16.2) 47 (17.0)
Death 7 (2.5) 6 (2.2)
Graft Loss 12 (4.3) 9 (3.2)
Loss to Follow-up 12 (4.3) 9 (3.2)
Graft Loss or Death or Loss to Follow-up3 32 (11.6) 26 (9.4)
Graft Loss or Death 18 (6.5) 15 (5.4)
Loss to Follow-up3 14 (5.1) 11 (4.0)

* Treated biopsy-proven acute rejection (tBPAR) was defined as a histologically confirmed acute rejection with a biopsy graded as IA, IB, IIA, IIB, or III according to 1997 Banff criteria that was treated with anti-rejection medication.

1 The difference in rates (Zortress–mycophenolic acid) with 95% CI for primary efficacy failure endpoint is 1.1% (-6.1%, 8.3%); and for the graft loss, death or loss to follow-up endpoint is 2.2% (-2.9%, 7.3%).

2 Includes treated BPAR, graft loss, death or loss to follow-up by Month 12 where loss to follow-up represents patient who did not experience treated BPAR, graft loss or death and whose last contact date is prior to 12 month visit

3 Loss to follow-up (for Graft Loss, Death, or Loss to Follow-up) represents patient who did not experience death or graft loss and whose last contact date is prior to 12 month visit

The estimated mean glomerular filtration rate (using the MDRD equation) for Zortress 1.5 mg (target trough concentrations 3 to 8 ng/mL) and mycophenolic acid groups were comparable at Month 12 in the ITT population (Table 8).

Table 8. Estimated Glomerular Filtration Rates (mL/min/1.73m2) by MDRD at 12 Months Post-Transplant*
Month 12 GFR (MDRD) Zortress (everolimus)
1.5 mg per day
with reduced exposure CsA
N=276
Mycophenolic Acid
1.44 g per day
with standard exposure CsA
N=277
Mean (SD)** 54.6 (21.7) 52.3 (26.5)
Median (Range) 55.0 (0-140.9) 50.1 (0.0-366.4)

* Analysis based on using a subject’s last observation carried forward for missing data at 12 months due to death or lost to follow-up data, a value of zero is used for subjects who experienced a graft loss.

** SD=standard deviation

Two earlier studies compared fixed doses of Zortress 1.5 mg per day and 3 mg per day, without therapeutic drug monitoring, combined with standard exposure cyclosporine and corticosteroids to mycophenolate mofetil 2.0 g per day and corticosteroids. Antilymphocyte antibody induction was prohibited in both studies. Both were multicenter, double-blind (for first 12 months), randomized trials (1:1:1) of 588 and 583 de novo renal transplant patients, respectively. The 12 month analysis of GFR showed increased rates of renal impairment in both the Zortress groups compared to the mycophenolate mofetil group in both studies. Therefore, reduced exposure cyclosporine should be used in combination with Zortress in order to avoid renal dysfunction and everolimus trough concentrations should be adjusted using therapeutic drug monitoring to maintain trough concentrations between 3 to 8 ng/mL. [See Boxed Warning, Dosage and Administration (2.4) and Warnings and Precautions (5.6)]

     Prevention of Organ Rejection after Liver Transplantation

A 24-month, multinational, open-label, randomized (1:1:1) trial was conducted in liver transplant patients starting 30 days post-transplant. During the first 30 days, after transplant and prior to randomization, patients received tacrolimus and corticosteriods, with or without mycophenolate mofetil. No induction antibody was administered. Approximately 70 to 80% of patients received at least one dose of mycophenolate mofetil at a median total daily dose of 1.5 g during the first 30 days. For eligibility, patients had to have a tacrolimus trough concentration of at least 8 ng/mL in the week prior to randomization.

At randomization, mycophenolate mofetil was discontinued and patients were randomized to one of two Zortress treatment groups [initial dose of 1 mg twice per day (2 mg daily) and adjusted to target trough concentrations using an LC/MS/MS assay of 3 to 8 ng/mL] either with reduced exposure of tacrolimus (target trough whole blood concentrations of 3 to 5 ng/mL) or tacrolimus elimination. In the tacrolimus elimination group, at Month 4 post-transplant, once the everolimus trough concentrations were within the target range of 6 to 10 ng/mL, reduced exposure tacrolimus was eliminated. The Zortress with tacrolimus elimination group was discontinued early due to higher incidence of acute rejection. In the control group, patients received standard exposure tacrolimus (target trough whole blood concentrations of 8 to 12 ng/mL tapered to 6 to 10 ng/mL by month 4 post-transplant). All patients received corticosteroids during the trial.

The study population consisted of 18 to 70 year old male and female liver transplant recipients undergoing their first transplant, mean age was approximately 54 years, more than 70% of patients were male, and the majority of patients were Caucasian, with approximately 89% of patients per treatment group completing the study. Key stratification parameters of HCV status (31-32% HCV positive across groups) and renal function (mean baseline eGFR range 79-83 mL/min/1.73m2) were also balanced between groups.

A total of 1147 patients were enrolled into the run-in period of this trial. At 30 days post-transplant a total 719 patients, who were eligible according to study inclusion/exclusion criteria, were randomized into one of three treatment groups: Zortress with reduced exposure tacrolimus; N=245, Zortress with tacrolimus elimination (tacrolimus elimination group); N=231, or standard dose/exposure tacrolimus (tacrolimus control); N=243. The study was conducted at 89 liver transplant centers across Europe, including the United Kingdom and Ireland, North and South America, and Australia.

Key inclusion criteria were recipients 18-70 years of age, eGFR ≥30 mL/min/1.73m2, tacrolimus trough level of ≥8 ng/mL in the week prior to randomization, and the ability to take oral medication.

Key exclusion criteria were recipients of multiple solid organ transplants, history of malignancy (except hepatocellular carcinoma within Milan criteria), human immunodeficiency virus, and any surgical or medical condition which significantly alter the absorption, distribution, metabolism and excretion of study drug.

There were no major baseline differences between treatment groups with regard to recipient or donor disease characteristics. Mean MELD scores at time of transplantation, cold ischemia times (CIT), and ABO matching were similar across groups. Overall the treatment groups were comparable with respect to the key determinants of liver transplantation.

The tacrolimus elimination group was stopped prematurely due to a higher incidence of acute rejection and adverse reactions leading to treatment discontinuation reported during the elimination phase of tacrolimus. Therefore, a treatment regimen of Zortress with tacrolimus elimination is not recommended.

Results at 12 months indicated that Zortress with reduced exposure tacrolimus is comparable to standard exposure tacrolimus with respect to efficacy failure, defined as treated biopsy-proven acute rejection, graft loss, death or loss to follow-up. The percentage of patients experiencing this endpoint and each individual variable in the Zortress and control group is shown in Table 9.

Table 9. Efficacy Failure by Treatment Group (ITT Population) at 12 Months
Zortress (everolimus)
With reduced Exposure Tacrolimus

N=245

n (%)
Tacrolimus
(standard exposure)


N=243
n (%)
Efficacy Endpoints1
Efficacy Failure Endpoint2 22 (9.0) 33 (13.6)
Treated Biopsy Proven Acute Rejection* 7 (2.9) 17 (7.0)
Death 13 (5.3) 7 (2.9)
Graft Loss 6 (2.4) 3 (1.2)
Loss to Follow-up 4 (1.6) 9 (3.7)
Graft Loss or Death or Loss to Follow-up3 18 (7.3) 18 (7.4)
Graft Loss or Death 14 (5.7) 8 (3.3)
Loss to Follow-up3 4 (1.6) 10 (4.1)

* Treated biopsy-proven acute rejection (tBPAR) was defined as histologically confirmed acute rejection with a rejection activity index (RAI) ≥ RAI score 3 that received anti-rejection treatment.

1 The difference in rates (Zortress – control) with 97.5% CI for efficacy failure endpoint is -4.6% (-11.4%, 2.2%); and for the graft loss, death or loss to follow-up endpoint is -0.1% (-5.4%, 5.3%).

2 Includes treated BPAR, graft loss, death or loss to follow-up by Month 12 where loss to follow-up represents patients who did not experience treated BPAR, graft loss or death and whose last contact date is prior to 12 month visit

3 Loss to follow-up (for Graft Loss, Death, or Loss to Follow-up) represents patients who did not experience death or graft loss and whose last contact date is prior to 12 month visit

The estimated mean glomerular filtration rate (using the MDRD equation) for the Zortress group was 80.9 mL/min/1.73m2 and the tacrolimus control was 70.3 mL/min/1.73m2 at Month 12 for patients with estimated GFR (eGFR) in the ITT population (Table 10).

Table 10. Estimated Glomerular Filtration Rates (mL/min/1.73m2) by MDRD at 12 Months Post-Transplant
Month 12 GFR (MDRD) Zortress (everolimus) with reduced exposure Tacrolimus
N=215
Tacrolimus (standard exposure)

N=209
Mean (SD) 80.9 (27.3) 70.3 (23.1)
Median* (Range) 78.3 (28.4-153.1) 66.4 (27.9-155.8)

Figure 1. Mean and 95% CI of eGFR (MDRD 4) [mL/min/1.73m2] by Visit Window and Treatment (ITT population – 12 Month Analysis)*

* Zortress dosing was initiated 30 days after transplantation

    HOW SUPPLIED/STORAGE AND HANDLING

Zortress (everolimus) Tablets are packed in child-resistant blisters.

Table 11. Description of Zortress (everolimus) Tablets
Dosage Strength 0.25 mg 0.5 mg 0.75 mg
Appearance White to yellowish, marbled, round, flat tablets with beveled edge
Imprint “C” on one side and “NVR” on the other “CH” on one side and “NVR” on the other “CL” on one side and “NVR” on the other
NDC Number 0078-0417-20 0078-0414-20 0078-0415-20

Each strength is available in boxes of 60 tablets (6 blister strips of 10 tablets each).

Storage

Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F). [see USP Controlled Room Temperature]

Protect from light and moisture.

    PATIENT COUNSELING INFORMATION

     Administration

Inform patients that Zortress should be taken orally twice a day approximately 12 hours apart consistently either with or without food.

Inform patients to avoid grapefruit and grapefruit juice which increase blood drug concentrations of Zortress. [See Warnings and Precautions (5.19)]

Advise patients that Zortress should be used concurrently with reduced doses of cyclosporine and that any change in doses of these medications should be made under physician supervision. A change in the cyclosporine dose may also require a change in the dosage of Zortress.

Inform patients of the necessity of repeated laboratory tests according to physician recommendations while they are taking Zortress.

     Development of Lymphomas and Other Malignancies

Inform patients they are at risk of developing lymphomas and other malignancies, particularly of the skin, due to immunosuppression. Advise patients to limit exposure to sunlight and ultraviolet (UV) light by wearing protective clothing and using a sunscreen with a high protection factor. [See Warnings and Precautions (5.2)]

     Increased Risk of Infection

Inform patients they are at increased risk of developing a variety of infections, including opportunistic infections, due to immunosuppression. Advise patients to contact their physician if they develop any symptoms of infection. [See Warnings and Precautions (5.3, 5.13)]

     Kidney Graft Thrombosis

Inform patients that Zortress has been associated with an increased risk of kidney arterial and venous thrombosis, resulting in graft loss, usually within the first 30 days post-transplantation. [See Warnings and Precautions (5.4)]

     Zortress and Calcineurin Inhibitor-Induced Nephrotoxicity

Advise patients of the risks of impaired kidney function with the combination of Zortress and cyclosporine as well as the need for routine blood concentration monitoring for both drugs. Advise patients of the importance of serum creatinine monitoring. [See Warnings and Precautions (5.6)]

     Angioedema

Inform patients of the risk of angioedema and that concomitant use of angiotensin converting enzyme (ACE) inhibitors may increase this risk. Advise patients to seek prompt medical attention if symptoms occur. [See Warnings and Precautions (5.8)]

     Wound Healing Complications and Fluid Accumulation

Inform patients the use of Zortress has been associated with impaired or delayed wound healing, fluid accumulation and the need for careful observation of their incision site. [See Warnings and Precautions (5.9)

     Interstitial lung disease/Non-Infectious Pneumonitis

Inform patients the use of Zortress may increase the risk of non-infectious pneumonitis. Advise patients to seek medical attention if they develop clinical symptoms consistent with pneumonia. [See Warnings and Precautions (5.10)]

     Hyperlipidemia

Inform patients the use of Zortress has been associated with increased serum cholesterol and triglycerides that may require treatment and the need for monitoring of blood lipid concentrations. [See Warnings and Precautions (5.11)]

     Proteinuria

Inform patients the use of Zortress has been associated with an increased risk of proteinuria. [See Warnings and Precautions (5.12)]

     Pregnancy

Advise women of childbearing age to avoid becoming pregnant throughout treatment and for 8 weeks after Zortress therapy has stopped.

     Medications that Interfere with Zortress

Some medications can increase or decrease blood concentrations of Zortress. Advise patients to inform their physician if they are taking any of the following: antifungals, antibiotics, antivirals, anti-epileptic medicines including carbamazepine, phenytoin and barbiturates, herbal/dietary supplements (St. John’s Wort), and/or rifampin. [See Warnings and Precautions (5.14)]

     New Onset Diabetes

Inform patients the use of Zortress may increase the risk of diabetes mellitus and to contact their physician if they develop symptoms. [See Warnings and Precautions (5.16)]

     Immunizations

Inform patients that vaccinations may be less effective while they are being treated with Zortress. Advise patients live vaccines should be avoided. [See Warnings and Precautions (5.18)]

     Patient with Hereditary Disorders

Advise patients to inform their physicians that if they have hereditary disorders of galactose intolerance (Lapp-lactase deficiency or glucose-galactose malabsorption) not to take Zortress. [See Warnings and Precautions (5.20)]

Manufactured by:
Novartis Pharma Stein AG
Stein, Switzerland

Distributed by:
Novartis Pharmaceuticals Corporation
East Hanover, New Jersey 07936

© Novartis

T2013-09
February 2013

MEDICATION GUIDE

Zortress (ZOR-tres)

(everolimus)

Tablets

Read this Medication Guide before you start using Zortress and each time you get a refill. There may be new information. This information does not take the place of talking with your doctor about your medical condition or treatment.

What is the most important information I should know about Zortress?

Zortress can cause serious side effects, including:
  • Increased risk of getting certain cancers. People who take Zortress have a higher chance of getting lymphoma and other cancers, especially skin cancer. Talk to your doctor about your risk for cancer.
  • Increased risk of serious infections. Zortress weakens the body’s immune system and affects your ability to fight infections. Serious infections can happen with Zortress that may lead to death. People taking Zortress have a higher chance of getting infections caused by viruses, bacteria, and fungi (yeast).
    • Call your doctor if you have symptoms of infection including fever or chills.
  • Blood clot in the blood vessels of your transplanted kidney. If this happens, it usually occurs within the first 30 days after your kidney transplant. Tell your doctor right away if you:
    • have pain in your groin, lower back, side or stomach (abdomen)
    • make less urine or you do not pass any urine
    • have blood in your urine or dark colored urine (tea-colored)
    • have fever, nausea, or vomiting
  • Serious problems with your transplanted kidney (nephrotoxicity). You will need to start with a lower dose of cyclosporine when you take it with Zortress. Your Doctor should do regular blood tests to check your levels of both Zortress and cyclosporine.
  • Increased risk of death that can be related to infection, in people who have had a heart transplant. You should not take Zortress if you have had a heart transplant without talking to your doctor.
See the section “What are the possible side effects of Zortress?” for information about other serious side effects.

What is Zortress?

Zortress is a prescription medicine used to prevent transplant rejection (antirejection medicine) in people who have received a kidney transplant or liver transplant. Transplant rejection happens when the body’s immune system perceives the new transplanted kidney as “foreign” and attacks it.

Zortress is used with other medicines called cyclosporine, corticosteroids and certain other transplant medicines to prevent rejection of your transplanted kidney. Zortress is used with other medicines called tacrolimus and corticosteroids to prevent rejection of your transplanted liver.

It is not known if Zortress is safe and effective in transplanted organs other than the kidney and liver.

It is not known if Zortress is safe and effective in children under 18 years of age.

Who should not take Zortress?

Do not take Zortress if you are allergic to:

  • everolimus (Zortress/AFINITOR®) or any of the ingredients in Zortress. See the end of this Medication Guide for a complete list of ingredients in Zortress.
  • sirolimus (Rapamune®)

What should I tell my doctor before taking Zortress?

Before taking Zortress, tell your doctor if you:

  • have liver problems
  • have skin cancer or it runs in your family
  • have high cholesterol or triglycerides (fat in your blood)
  • have Lapp lactase deficiency or glucose-galactose malabsorption. You should not take Zortress if you have this disorder.
  • have any other medical conditions
  • are pregnant or plan to become pregnant. It is not known if Zortress will harm your unborn baby. Talk with your doctor if you are pregnant or plan to become pregnant.
    • Women who may become pregnant should use effective birth control (contraception) while taking Zortress and for 8 weeks after stopping Zortress.
  • are breastfeeding or plan to breastfeed. It is not known if Zortress passes into your breast milk. You and your doctor should decide if you will take Zortress or breastfeed. You should not do both.

Tell your doctor about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements. Zortress may affect the way other medicines work, and other medicines may affect how Zortress works.

Especially tell your doctor if you take:

  • antifungal medicine
  • antibiotic medicine
  • heart medicine
  • high blood pressure medicine
  • a medicine to lower cholesterol or triglycerides
  • cyclosporine (Sandimmune, Gengraf, Neoral)
  • tuberculosis (TB) medicine
  • HIV medicine
  • St. John’s Wort
  • seizure (anticonvulsant) medicine

Know the medicines you take. Keep a list of them to show your doctor and pharmacist when you get a new medicine. Do not take any new medicine without talking with your doctor first.

How should I take Zortress?

  • Take Zortress exactly as your doctor tells you.
  • Do not stop taking Zortress or change your dose unless your doctor tells you to.
  • Take Zortress at the same time as your dose of cyclosporine medicine.
  • Do not stop taking or change your dose of cyclosporine or tacrolimus medicine unless your doctor tells you to.
  • If your doctor changes your dose of cyclosporine your dose of Zortress may change.
  • Take Zortress 2 times a day about 12 hours apart.
  • Swallow Zortress tablets whole with a glass of water. Do not crush or chew Zortress tablets.
  • Take Zortress tablets with or without food. If you take Zortress tablets with food, always take Zortress tablets with food. If you take Zortress tablets without food, always take Zortress tablets without food.
  • Your doctor will do regular blood tests to check your kidney function while you take Zortress. It is important that you get these tests done when your doctor tells you to. Blood tests will monitor how your kidneys are working and make sure you are getting the right dose of Zortress and other transplant medications they may be on (cyclosporine and tacrolimus).
  • If you take too much Zortress, call your doctor or go to the nearest hospital emergency room right away.

What should I avoid while taking Zortress?

  • Avoid receiving any live vaccines while taking Zortress. Some vaccines may not work as well while you are taking Zortress.
  • Do not eat grapefruit or drink grapefruit juice while you are taking Zortress. Grapefruit may increase your blood level of Zortress.
  • Limit the amount of time you spend in the sunlight. Avoid using tanning beds or sunlamps. People who take Zortress have a higher risk of getting skin cancer. See the section “What is the most important information I should know about Zortress?” Wear protective clothing when you are in the sun and use a sunscreen with a high protection factor (SPF 30 and above). This is especially important if you have fair skin or if you have a family history of skin cancer.
  • Avoid becoming pregnant. See the section “What should I tell my doctor before taking Zortress?”

What are possible side effects of Zortress?

Zortress can cause serious side effects, including:

  • See “What is the most important information I should know about Zortress?”
  • swelling under your skin especially around your mouth, eyes and in your throat (angioedema). Your chance of having swelling under your skin is higher if you take Zortress along with certain other medicines. Tell your doctor right away or go to the nearest emergency room if you have any of these symptoms of angioedema:
    • sudden swelling of your face, mouth, throat, tongue or hands
    • hives or welts
    • itchy or painful swollen skin
    • trouble breathing
  • delayed wound healing. Zortress can cause your incision to heal slowly or not heal well. Call your doctor right away if you have any of the following symptoms:
    • your incision is red, warm or painful
    • blood, fluid, or pus in your incision
    • your incision opens up
    • swelling of your incision
  • lung or breathing problems. Tell your doctor right away if you have new or worsening cough, shortness of breath, difficulty breathing or wheezing. In some patients lung or breathing problems have been severe, and can even lead to death. Your doctor may need to stop Zortress or lower your dose.
  • increased cholesterol and triglycerides (fat in your blood). If your cholesterol and triglyceride levels are high your doctor may want to lower them with diet, exercise and certain medicines.
  • protein in your urine (proteinuria).
  • change in kidney function. Zortress may cause kidney problems when taken along with a standard dose of cyclosporine medicine instead of a lower dose.

Your doctor should do blood and urine tests to monitor your cholesterol, triglycerides and kidney function.

  • viral infections. Certain viruses can live in your body and cause active infections when your immune system is weak. Viral infections that can happen with Zortress include BK virus-associated nephropathy. BK virus can affect how your kidney works and cause your transplanted kidney to fail.
  • blood clotting problems.
  • diabetes. Tell your doctor if you have frequent urination, increased thirst or hunger.
  • male infertility (low or no sperm count).

The most common side effects of Zortress in people who have had a kidney or liver transplant include:

These common side effects have been reported in both kidney and liver transplant patients:

  • nausea
  • swelling of the lower legs, ankles and feet
  • high blood pressure

The most common side effects of Zortress in people who have had a kidney transplant include:

  • constipation
  • low red blood cell count (anemia)
  • urinary tract infection
  • increased fat in the blood (cholesterol and triglycerides)

The most common side effects of Zortress in people who have had a liver transplant include:

  • diarrhea
  • headache
  • fever
  • abdominal pain
  • low white blood cells

These are not all of the possible side effects of Zortress. Tell your doctor about any side effect that bothers you or that does not go away.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

How do I store Zortress?

  • Store Zortress tablets between 59°F to 86°F (15°C to 30°C).
  • Keep Zortress out of the light.
  • Keep Zortress tablets dry.

Keep Zortress and all medicines out of the reach of children.

General information about the safe and effective use of Zortress.

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use Zortress for a condition for which it was not prescribed. Do not give Zortress to other people, even if they have the same symptoms you have. It may harm them.

This Medication Guide summarizes the most important information about Zortress. For more information, talk with your doctor. You can ask your doctor or pharmacist for information about Zortress that is written for healthcare professionals. For more information, call 1-888-669-6682 or visit www.Zortress.com.

What are the ingredients in Zortress?

Active ingredient: everolimus

Inactive ingredients: butylated hydroxytoluene, magnesium stearate, lactose monohydrate, hypromellose, crospovidone and lactose anhydrous.

This Medication Guide has been approved by the U.S. Food and Drug Administration.

Any other trademarks in this document are the property of their respective owners.

Manufactured by:
Novartis Pharma Stein AG
Stein, Switzerland

Distributed by:
Novartis Pharmaceuticals Corporation
East Hanover, New Jersey 07936

© Novartis

Rapamune® is a registered trademark of Pfizer Inc
Gengraf® is a registered trademark of Abbott Laboratories

T2013-10
February 2013

PRINCIPAL DISPLAY PANEL

Package Label – 0.25 mg
Rx Only       NDC 0078-0417-20
Zortress® (everolimus) Tablets
0.25 mg per tablet
Dispense With Medication Guide Enclosed or Provided Separately.
Contents:
6 blister cards of 10 tablets each

PRINCIPAL DISPLAY PANEL

Package Label – 0.5 mg
Rx Only       NDC 0078-0414-20
Zortress® (everolimus) Tablets
0.5 mg per tablet
Dispense With Medication Guide Enclosed or Provided Separately.
Contents:
6 blister cards of 10 tablets each

PRINCIPAL DISPLAY PANEL

Package Label – 0.75 mg
Rx Only       NDC 0078-0415-20
Zortress® (everolimus) Tablets
0.75 mg per tablet
Dispense With Medication Guide Enclosed or Provided Separately.
Contents:
6 blister cards of 10 tablets each


Zortress 
everolimus tablet
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:0078-0417
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
EVEROLIMUS (EVEROLIMUS) EVEROLIMUS 0.25 mg
Inactive Ingredients
Ingredient Name Strength
BUTYLATED HYDROXYTOLUENE  
CROSPOVIDONE  
HYPROMELLOSES  
ANHYDROUS LACTOSE  
LACTOSE MONOHYDRATE  
MAGNESIUM STEARATE  
Product Characteristics
Color WHITE (White to yellowish) Score no score
Shape ROUND (round) Size 6mm
Flavor Imprint Code C;NVR
Contains         
Packaging
# Item Code Package Description
1 NDC:0078-0417-20 60 BLISTER PACK (60 BLISTER PACK) in 1 BOX
1 NDC:0078-0417-61 1 TABLET (1 TABLET) in 1 BLISTER PACK
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA NDA021560 04/22/2010
Zortress 
everolimus tablet
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:0078-0414
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
EVEROLIMUS (EVEROLIMUS) EVEROLIMUS 0.5 mg
Inactive Ingredients
Ingredient Name Strength
BUTYLATED HYDROXYTOLUENE  
CROSPOVIDONE  
HYPROMELLOSES  
ANHYDROUS LACTOSE  
LACTOSE MONOHYDRATE  
MAGNESIUM STEARATE  
Product Characteristics
Color WHITE (White to yellowish) Score no score
Shape ROUND (round) Size 7mm
Flavor Imprint Code CH;NVR
Contains         
Packaging
# Item Code Package Description
1 NDC:0078-0414-20 60 BLISTER PACK (60 BLISTER PACK) in 1 BOX
1 NDC:0078-0414-61 1 TABLET (1 TABLET) in 1 BLISTER PACK
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA NDA021560 04/22/2010
Zortress 
everolimus tablet
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:0078-0415
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
EVEROLIMUS (EVEROLIMUS) EVEROLIMUS 0.75 mg
Inactive Ingredients
Ingredient Name Strength
BUTYLATED HYDROXYTOLUENE  
CROSPOVIDONE  
HYPROMELLOSES  
ANHYDROUS LACTOSE  
LACTOSE MONOHYDRATE  
MAGNESIUM STEARATE  
Product Characteristics
Color WHITE (White to yellowish) Score no score
Shape ROUND (round) Size 9mm
Flavor Imprint Code CL;NVR
Contains         
Packaging
# Item Code Package Description
1 NDC:0078-0415-20 60 BLISTER PACK (60 BLISTER PACK) in 1 BOX
1 NDC:0078-0415-61 1 TABLET (1 TABLET) in 1 BLISTER PACK
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA NDA021560 04/22/2010
Labeler - Novartis Pharmaceuticals Corporation (002147023)
Revised: 02/2013
 
Novartis Pharmaceuticals Corporation



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