Epkinly
Pronunciation: ep-KIN-lee
Generic name: epcoritamab-bysp
Dosage form: injection, for subcutaneous use
Drug class: Bispecific T-cell engagers (BiTE)
What is Epkinly?
Epkinly is used to treat certain types of diffuse large B-cell lymphoma (DLBCL), high-grade B-cell lymphoma, or follicular lymphoma in adults:
- that has come back (relapsed) or did not respond to previous treatment (refractory), and
- who have already received 2 or more treatments for their cancer.
It is given as an injection under the skin (subcutaneously) every 1 to 4 weeks depending on what Cycle of treatment you are on.
Epkinly (epcoritamab) gained FDA approval on May 19, 2023, under the accelerated approval designation. Continued approval may be contingent upon a continued benefit being shown in clinical trials. There is no generic.
How does Epkinly work?
Epkinly has a bispecific mechanism of action and binds to 2 different immune system targets: the CD20 protein on B cells and the CD3 protein on T cells. This brings T cells into proximity to B cells, making them more effective at killing cancerous B cells.
Epkinly belongs to the drug class called Bispecific T-cell engagers (BiTE).
Epkinly clinical trial results
For patients with diffuse large B-cell lymphoma (DLBCL):
- 61% of patients responded to treatment (overall response rate)
- Responses lasted a median of 15.6 months
- These were adults with relapsed or refractory disease (meaning previous treatments had failed)
For patients with follicular lymphoma (FL):
- 82% of patients responded to treatment
- More than half of patients were still responding at 14.8 months
- These were also adults with relapsed or refractory disease
These results come from the EPCORE NHL-1 clinical trial studying Epkinly.
See What is the success rate of Epkinly? for more information.
Epkinly side effects
The most common side effects of Epkinly are:
- tiredness
- muscle and bone pain
- injection site reactions
- fever
- stomach-area (abdominal) pain
- nausea
- diarrhea.
Serious side effects and warnings
Epkinly carries a Boxed Warning for cytokine release syndrome (CRS) and Immune Effector Cell-Associated Neurotoxicity Syndrome (ICANS).
Cytokine Release Syndrome (CRS) happens when your immune system responds to immunotherapy drugs more aggressively than it should. It is common during treatment and can also be serious or life-threatening. Tell your healthcare provider or get medical help right away if you develop any signs or symptoms of CRS, including:
- fever of 100.4°F (38°C) or higher
- dizziness or light-headedness
- trouble breathing
- chills
- fast heartbeat
- feeling anxious
- headache
- confusion
- shaking (tremors)
- problems with balance and movement, such as trouble walking
Due to the risk of CRS, you will receive treatment on a "step-up dosing schedule".
- The step-up dosing schedule is when you receive smaller "step-up" doses on Day 1 and Day 8 of your first cycle of treatment (Cycle 1).
- You will receive your first full dose on Day 15 of Cycle 1.
- If your dose is delayed for any reason, you may need to repeat the "step-up dosing schedule".
- Before each dose in Cycle 1, you will receive medicines to help reduce your risk of CRS. Your healthcare provider will decide if you need to receive medicine to help reduce your risk of CRS with future cycles.
- See How will I receive Epkinly? for more information about how you will receive this medicine.
Neurologic Problems (Immune Effector Cell-Associated Neurotoxicity Syndrome or ICANS). Epkinly can cause serious neurologic problems that can be life-threatening and lead to death. Neurologic problems may happen days or weeks after you receive this medicine. Your healthcare provider may refer you to a healthcare provider who specializes in neurologic problems. Tell your healthcare provider right away if you develop any signs or symptoms of neurologic problems, including:
- trouble speaking or writing
- confusion and disorientation
- drowsiness
- tiredness or lack of energy
- muscle weakness
- shaking (tremors)
- seizures
- memory loss.
Hospital Monitoring. Due to the risk of CRS and neurologic problems, you should be hospitalized for 24 hours after receiving your first full dose on Day 15 of Cycle 1. Your healthcare provider will monitor you for signs and symptoms of CRS and neurologic problems during treatment, as well as other side effects and treat you if needed. Your healthcare provider may temporarily stop or completely stop your treatment if you develop CRS, neurologic problems, or any other severe side effects.
Other serious side effects of Epkinly include:
Infections. Epkinly can cause serious infections that may lead to death. Your healthcare provider will check you for signs and symptoms of infection before and during treatment with Epkinly. Tell your healthcare provider right away if you develop any signs or symptoms of infection during treatment, including:
- fever of 100.4°F (38°C) or higher
- cough
- chest pain
- tiredness
- shortness of breath
- painful rash
- sore throat
- pain during urination
- feeling weak or generally unwell.
Low blood cell counts. Low blood cell counts are common during treatment, and can also be serious or severe. Your healthcare provider will check your blood cell counts during treatment.
Epkinly may cause the following low blood cell counts:
- low white blood cell counts (neutropenia). Low white blood cells can increase your risk for infection
- low red blood cell counts (anemia). Low red blood cells can cause tiredness and shortness of breath
- low platelet counts (thrombocytopenia). Low platelet counts can cause bruising or bleeding problems.
Your healthcare provider may temporarily stop or completely stop treatment if you develop certain side effects.
It is not known if Epkinly is safe and effective in children.
These are not all the possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
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Before receiving Epkinly
Before you receive treatment, tell your healthcare provider about all of your medical conditions, including if you:
- have an infection
- are pregnant or intend to become pregnant
- are breastfeeding.
Pregnancy
This medicine may cause harm to your unborn baby. Females who can become pregnant:
- Your healthcare provider should do a pregnancy test before you start treatment
- You should use effective birth control (contraception) during treatment, and for 4 months after your last dose
- Tell your healthcare provider if you become pregnant or think that you may be pregnant during treatment.
Breastfeeding
Do not breastfeed during treatment and for 4 months after your last dose.
How is Epkinly administered?
Epkinly will be given as an injection under your skin (subcutaneous injection) by your healthcare provider.
- It is usually given in the lower part of your stomach area (abdomen) or upper, outer, thigh.
- Your treatment schedule is divided into cycles that are usually 28 days (4 weeks) long.
- Epkinly is usually given 1 time a week during Cycles 1 to 4, every 2 weeks from Cycle 4 to 9, and every 4 weeks starting with Cycle 10.
- Your healthcare provider will decide how many treatment cycles you will receive.
Your healthcare provider may hospitalize you for 24 hours after administration of the Cycle 1 Day 15 dosage of 48 mg.
Before administering Epkinly, you may receive premedications to decrease the risk of CRS.
- These premedications may include a steroid such as prednisolone or dexamethasone or equivalent, an antihistamine such as diphenhydramine or equivalent, and acetaminophen.
- Premedications for the remaining cycles include prednisolone or dexamethasone or equivalent.
Dosing information
Adult Dose for Diffuse Large B-cell Lymphoma (DLBCL) or High-grade B-cell Lymphoma
The dose of Epkinly for DLBCL or high-grade B-cell lymphoma depends on the Cycle and day of treatment. Your healthcare provider will calculate the dosage.
Cycle of treatment* | Day of treatment | Dose of Epkinly | |
Cycle 1 | 1 | Step-up dose 1 | 0.16 mg |
8 | Step-up dose 2 | 0.8 mg | |
15 | First full dose | 48 mg | |
22 | 48 mg | ||
Cycles 2 and 3 | 1, 8, 15 and 22 | 48 mg | |
Cycles 4 to 9 | 1 and 15 | 48 mg | |
Cycle 10 and beyond | 1 | 48 mg |
Adult Dose for Follicular Lymphoma (FL)
The dose of Epkinly for FL depends on the Cycle and day of treatment. Your healthcare provider will calculate the dosage.
Cycle of treatment* | Day of treatment | Dose of Epkinly | |
Cycle 1 | 1 | Step-up dose 1 | 0.16 mg |
8 | Step-up dose 2 | 0.8 mg | |
15 | Step-up dose 3 | 3 mg | |
22 | First full dose | 48 mg | |
Cycles 2 and 3 | 1, 8, 15 and 22 | 48 mg | |
Cycles 4 to 9 | 1 and 15 | 48 mg | |
Cycle 10 and beyond | 1 | 48 mg |
What should I avoid while receiving Epkinly?
Epkinly may cause dizziness, confusion, tremors, sleepiness, or other symptoms that may impair your ability to drive or operate heavy machinery, and you should not do these tasks if you are impaired.
- These may be symptoms of CRS or neurologic problems and you should tell your healthcare provider right away.
What other drugs will affect this medication?
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
Epkinly may cause small changes in the concentration of other medications that are metabolized by the CYP hepatic enzyme system. Monitor for any increase in side effects .
Epkinly causes the release of cytokines that may suppress the activity of CYP enzymes, and enhance the concentration of CYP substrates. This is more likely to occur after the first dose of Epkinly and up to 14 days after the 48 mg dose.
Ingredients
Active ingredient: epcoritamab-bysp
Inactive ingredients: acetic acid, polysorbate 80, sodium acetate, sorbitol, and Water for Injection.
Who makes Epkinly?
Epkinly is manufactured by Genmab, a Danish biotechnology company headquartered in Copenhagen, Denmark, in collaboration with AbbVie, an American biopharmaceutical company based in North Chicago, Illinois. Other notable drugs by these companies include:
- Genmab:
- AbbVie:
Epkinly Biosimilars
Biosimilar and interchangeable products are biological products that are highly similar to and have no clinically meaningful differences from the reference product.
Reference products
These are biological products that have already been approved by the FDA, against which biosimilar products are compared. There is 1 for Epkinly.
Epkinly (epcoritamab-bysp) - Genmab US, Inc.
Formulation type | Strength |
---|---|
Single-Dose Vial | 48 mg/0.8 mL |
Single-Dose Vial | 4 mg/0.8 mL |
Popular FAQ
What are monoclonal antibodies?
Monoclonal antibodies (mAbs) are man-made proteins that mimic the natural antibodies produced by our immune systems. Monoclonal antibodies can be formulated into medicines to treat various types of illnesses, such as cancer, rheumatoid arthritis or psoriasis. Continue reading
What is the success rate of Epkinly?
In the EPCORE NHL-1 trial, Epkinly delivered an overall response rate (ORR) of 61% with a median duration of response of 15.6 months in adults treated for relapsed or refractory (R/R) diffuse large B-cell lymphoma (DLBCL). In adults with R/R follicular lymphoma (FL), Epkinly demonstrated an 82% ORR, with more than 50% of patients still responsive at 14.8 months. Continue reading
References
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- Drug class: bispecific T-cell engagers (BiTE)
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