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Side Effects > Reyataz

Reyataz Side Effects

Please note - some side effects for Reyataz may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).


For the consumer

For the professional

Side Effects of Reyataz - for the consumer


Reyataz

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Reyataz:

Changes in body fat; cough; diarrhea; fatigue; headache; increased cough; nausea; pain; stomach pain; trouble sleeping; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Reyataz:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in the urine; chest pain; depression; dizziness; fever, chills, or sore throat; increased urination or thirst; irregular heartbeat; lightheadedness; numbness, tingling, or extreme weakness especially in the arms or legs; painful urination; red, blistered, or swollen skin; severe nausea or vomiting; severe stomach or side pain; trouble breathing; unusual bleeding or bruising; yellowing of skin or eyes.

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For the professional


Reyataz

Adult Patients

Treatment-Emergent Adverse Events in Treatment-Naive Patients

Selected drug-related clinical adverse events of moderate or severe intensity reported in ≥2% of treatment-naive patients receiving combination therapy including Reyataz are presented in Table 12. For other information regarding observed or potentially serious adverse events, see WARNINGS and PRECAUTIONS.

Table 12: Selected Treatment-Emergent Adverse Eventsa of Moderate or Severe Intensity Reported in ≥2% of Adult Treatment-Naive Patientsb
Phase III Study AI424-034 Phase II Studies AI424-007, -008
64 weeksc
Reyataz 400 mg
once daily +
lamivudine +
zidovudinee
64 weeksc
efavirenz 600 mg
once daily +
lamivudine +
zidovudinee
120 weeksc,d
Reyataz 400 mg once
daily + stavudine +
lamivudine or
didanosine
73 weeksc,dnelfinavir 750 mg TID
or 1250 mg BID +
stavudine + lamivudine
or didanosine
(n=404) (n=401) (n=279) (n=191)
* None reported in this treatment arm.
a Includes events of possible, probable, certain, or unknown relationship to treatment regimen.
b Based on regimens containing Reyataz.
c Median time on therapy.
d Includes long-term follow-up.
e As a fixed-dose combination: 150 mg lamivudine, 300 mg zidovudine twice daily.
Body as a Whole
   Headache 6% 6% 1% 2%
Digestive System
   Nausea 14% 12% 6% 4%
   Jaundice/scleral icterus 7% * 7% *
   Vomiting 4% 7% 3% 3%
   Diarrhea 1% 2% 3% 16%
   Abdominal pain 4% 4% 4% 2%
Nervous System
   Dizziness 2% 7% <1% *
   Insomnia 3% 3% <1% *
   Peripheral neurologic
     symptoms
<1% 1% 4% 3%
Skin and Appendages
   Rash 7% 10% 5% 1%

Treatment-Emergent Adverse Events in Treatment-Experienced Patients

Selected drug-related clinical adverse events of moderate-severe intensity in ≥2% of treatment-experienced patients receiving Reyataz/ritonavir are presented in Table 13. For other information regarding observed or potentially serious adverse events, see WARNINGS and PRECAUTIONS.

Table 13: Selected Treatment-Emergent Adverse Eventsa of Moderate or Severe Intensity Reported in ≥2% of Adult Treatment-Experienced Patients,b Study AI424-045
48 weeksc
Reyataz/ritonavir 300/100 mg once
daily + tenofovir + NRTI
48 weeksc
lopinavir/ritonavir 400/100 mg twice
dailyd + tenofovir + NRTI
(n=119) (n=118)
* None reported in this treatment arm.
a Includes events of possible, probable, certain, or unknown relationship to treatment regimen.
b Based on the regimen containing Reyataz.
c Median time on therapy.
d As a fixed-dose combination.
Body as a Whole
   Fever 2% *
Digestive System
   Jaundice/scleral icterus 9% *
   Diarrhea 3% 11%
   Nausea 3% 2%
Nervous System
   Depression 2% <1%
Musculoskeletal System
   Myalgia 4% *

Postmarketing Experience

The following events have been identified during postapproval use of Reyataz. Because these reactions are reported voluntarily from a population of unknown size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Body as a Whole: edema

Cardiovascular System: second-degree AV block

Gastrointestinal System: pancreatitis

Hepatic System: hepatic function abnormalities

Metabolic System and Nutrition Disorders: hyperglycemia, diabetes mellitus

Musculoskeletal System: arthralgia

Renal System: nephrolithiasis

Skin and Appendages: pruritus, alopecia, maculopapular rash

Laboratory Abnormalities

Treatment-Naive Patients

The percentages of adult treatment-naive patients treated with combination therapy including Reyataz (atazanavir sulfate) with Grade 3-4 laboratory abnormalities are presented in Table 14.

Table 14: Grade 3-4 Laboratory Abnormalities Reported in ≥2% of Adult Treatment-Naive Patientsa
Phase III Study AI424-034 Phase II Studies AI424-007, -008
64 weeksb 64 weeksb 120 weeksb,c 73 weeksb,c
Reyataz
400 mg
once daily
+ lamivudine
+ zidovudinee
efavirenz
600 mg
once daily
+ lamivudine
+ zidovudinee
Reyataz 400 mg
once daily +
stavudine
+ lamivudine or
+ stavudine
+ didanosine
nelfinavir
750 mg TID or
1250 mg BID
+ stavudine
+ lamivudine or
+ stavudine
+ didanosine
Variable Limitd (n=404) (n=401) (n=279) (n=191)
* None reported in this treatment arm.
a Based on regimen(s) containing Reyataz.
b Median time on therapy.
c Includes long-term follow-up.
d ULN = upper limit of normal.
e As a fixed-dose combination: 150 mg lamivudine, 300 mg zidovudine twice daily.
Chemistry High
   SGOT/AST ≥5.1 x ULN 2% 2% 7% 5%
   SGPT/ALT ≥5.1 x ULN 4% 3% 9% 7%
   Total Bilirubin ≥2.6 x ULN 35% <1% 47% 3%
   Amylase ≥2.1 x ULN * * 14% 10%
   Lipase ≥2.1 x ULN <1% 1% 4% 5%
   Creatine Kinase ≥5.1 x ULN 6% 6% 11% 9%
   Total Cholesterol ≥240 mg/dL 6% 24% 19% 48%
   Triglycerides ≥751 mg/dL <1% 3% 4% 2%
Hematology Low
   Hemoglobin <8.0 g/dL 5% 3% <1% 4%
   Neutrophils <750 cells/mm3 7% 9% 3% 7%

Lipids, Change from Baseline

For Study AI424-034, changes from baseline in fasting LDL-cholesterol, HDL-cholesterol, total cholesterol, and fasting triglycerides are shown in Table 15.

Table 15: Lipid Values, Mean Change from Baseline, Study AI424-034
Reyataza,b efavirenzb,c
Baseline Week 48 Baseline Week 48
mg/dL mg/dL Changed mg/dL mg/dL Changed
(n=383e) (n=283e) (n=272e) (n=378e) (n=264e) (n=253e)
a Reyataz 400 mg once daily with the fixed-dose combination: 150 mg lamivudine, 300 mg zidovudine twice daily.
b Values obtained after initiation of serum lipid-reducing agents were not included in these analyses. Use of serum lipid-reducing agents was more common in the efavirenz treatment arm (3%) than in the Reyataz arm (1%).
c Efavirenz 600 mg once daily with the fixed-dose combination: 150 mg lamivudine, 300 mg zidovudine twice daily.
d The change from baseline is the mean of within-patient changes from baseline for patients with both baseline and Week 48 values and is not a simple difference of the baseline and Week 48 mean values.
e Number of patients with LDL-cholesterol measured.
f Fasting.
LDL-Cholesterolf 98 98 +1% 98 114 +18%
HDL-Cholesterol 39 43 +13% 38 46 +24%
Total Cholesterol 164 168 +2% 162 195 +21%
Triglyceridesf 138 124 -9% 129 168 +23%

Treatment-Experienced Patients

The percentages of adult treatment-experienced patients treated with combination therapy including Reyataz/ritonavir with Grade 3-4 laboratory abnormalities are presented in Table 16.

Table 16: Grade 3-4 Laboratory Abnormalities Reported in ≥2% of Adult Treatment-Experienced Patients, Study AI424-045a
48 weeksb 48 weeksb
Reyataz/ritonavir 300/100 mg
once daily + tenofovir + NRTI
lopinavir/ritonavir 400/100 mg
twice dailyd + tenofovir + NRTI
Variable Limitc (n=119) (n=118)
a Based on regimen(s) containing Reyataz.
b Median time on therapy.
c ULN = upper limit of normal.
d As a fixed-dose combination.
Chemistry High
   SGOT/AST ≥5.1 x ULN 3% 3%
   SGPT/ALT ≥5.1 x ULN 4% 3%
   Total Bilirubin ≥2.6 x ULN 49% <1%
   Lipase ≥2.1 x ULN 5% 6%
   Creatine Kinase ≥5.1 x ULN 8% 8%
   Total Cholesterol ≥240 mg/dL 25% 26%
   Triglycerides ≥751 mg/dL 8% 12%
   Glucose ≥251 mg/dL 5% <1%
Hematology Low
   Platelets <50,000 cells/mm3 2% 3%
   Neutrophils <750 cells/mm3 7% 8%

Lipids, Change from Baseline

For Study AI424-045, changes from baseline in fasting LDL-cholesterol, HDL-cholesterol, total cholesterol, and fasting triglycerides are shown in Table 17. The observed magnitude of dyslipidemia was less with Reyataz/ritonavir than with lopinavir/ritonavir. However, the clinical impact of such findings has not been demonstrated.

Table 17: Lipid Values, Mean Change from Baseline, Study AI424-045
Reyataz/ritonavira,b lopinavir/ritonavirb,c
Baseline Week 48 Baseline Week 48
mg/dL mg/dL Changed mg/dL mg/dL Changed
(n=111e) (n=75e) (n=74e) (n=108e) (n=76e) (n=73e)
a Reyataz 300 mg once daily + ritonavir + tenofovir + 1 NRTI.
b Values obtained after initiation of serum lipid-reducing agents were not included in these analyses. Use of serum lipid-reducing agents was more common in the lopinavir/ritonavir treatment arm (19%) than in the Reyataz/ritonavir arm (8%).
c Lopinavir/ritonavir (400/100 mg) BID + tenofovir + 1 NRTI.
d The change from baseline is the mean of within-patient changes from baseline for patients with both baseline and Week 48 values and is not a simple difference of the baseline and Week 48 mean values.
e Number of patients with LDL-cholesterol measured.
f Fasting.
LDL-Cholesterolf 108 98 -10% 104 103 +1%
HDL-Cholesterol 40 39 -7% 39 41 +2%
Total Cholesterol 188 170 -8% 181 187 +6%
Triglyceridesf 215 161 -4% 196 224 +30%

Patients Co-infected With Hepatitis B and/or Hepatitis C Virus

Liver function tests should be monitored in patients with a history of hepatitis B or C. In studies AI424-008 and AI424-034, 74 patients treated with 400 mg of Reyataz (atazanavir sulfate) once daily, 58 who received efavirenz, and 12 who received nelfinavir were seropositive for hepatitis B and/or C at study entry. ALT levels >5 times the upper limit of normal (ULN) developed in 15% of the Reyataz-treated patients, 14% of the efavirenz-treated patients, and 17% of the nelfinavir-treated patients. AST levels >5 times ULN developed in 9% of the Reyataz-treated patients, 5% of the efavirenz-treated patients, and 17% of the nelfinavir-treated patients. Within atazanavir and control regimens, no difference in frequency of bilirubin elevations was noted between seropositive and seronegative patients.

In study AI424-045, 20 patients treated with Reyataz/ritonavir 300 mg/100 mg once daily and 18 patients treated with lopinavir/ritonavir 400 mg/100 mg twice daily were seropositive for hepatitis B and/or C at study entry. ALT levels >5 times ULN developed in 25% (5/20) of the Reyataz/ritonavir-treated patients and 6% (1/18) of the lopinavir/ritonavir-treated patients. AST levels >5 times ULN developed in 10% (2/20) of the Reyataz/ritonavir-treated patients and 6% (1/18) of the lopinavir/ritonavir-treated patients.

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