Epkinly (epcoritamab-bysp)

Antineoplastic - Immunotherapy, T-cell Engager Subcutaneous Vial (Ml)

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Last reviewed · Source: First Databank (FDB) drug data

Overview

Epcoritamab-bysp, a bispecific CD20-directed CD3 T-cell engager, is an antineoplastic agent.

Epcoritamab-bysp is a bispecific CD20-directed CD3 T-cell engager; it is a humanized bispecific immunoglobulin G (IgG) antibody. Epcoritamab-bysp is a T-cell specific antibody that binds to the CD3 receptor expressed on the surface of T-cells and CD20 expressed on the surface of lymphoma cells and healthy B-lineage cells. In vitro, epcoritamab-bysp activated T-cells, caused the release of proinflammatory cytokines, and induced lysis of B-cells.

Epcoritamab-bysp is manufactured in Chinese hamster ovary cells using recombinant DNA technology.

Circulating B-cells decreased to undetectable levels (<10 cells/microliter) after administration of the approved recommended dose of epcoritamab-bysp in patients who had detectable B-cells at treatment initiation by Cycle 1 Day 15 and the depletion was sustained while patients remained on treatment. Transient elevation of circulating cytokines (interleukin (IL)-2, IL-6, IL-10, tumor necrosis factor-alpha, and interferon-gamma) was observed at dose levels of 0.04 mg and above. After administration of the approved recommended dosages of epcoritamab-bysp, cytokine levels increased within 24 hours after the first dose on Cycle 1 Day 1, generally reached maximum levels after the first 48 mg dose, and returned to baseline prior to the second 48 mg full dose.

Epcoritamab-bysp AUC increased more than proportionally over a full dosage range from 1.5 to 60 mg (0.03125 to 1.25 times the approved recommended dosage). Epcoritamab-bysp maximum concentration (Cmax) is achieved after the first dose of Cycle 4. The median time to maximum concentration (Tmax) of epcoritamab-bysp after the first full dose and the end of Cycle 3 (weekly dosage regimen) treatment doses were 4 (range: 0.3--7) days and 2.3 days (range: 0.3--3.2), respectively.

The half-life of full dose epcoritamab-bysp (48 mg) is approximately 22 days (58%) at the end of Cycle 3. Epcoritamab-bysp is expected to be metabolized into small peptides by catabolic pathways. No clinically significant differences in pharmacokinetic parameters are observed between patients with relapsed or refractory large B-cell lymphoma and patients with relapsed or refractory follicular lymphoma.

No clinically significant differences in the pharmacokinetics of epcoritamab-bysp were observed based on age (range: 20 to 89 years), sex, race, mild to moderate renal impairment (creatinine clearance 30 to <90 mL/minute as estimated by Cockcroft-Gault formula), and mild hepatic impairment (total bilirubin less than or equal to the upper limit of normal, and aspartate aminotransferase greater than the upper limit of normal or total bilirubin 1--1.5 times the upper limit of normal and any aspartate aminotransferase level) accounting for differences in body weight. The effects of severe renal impairment (creatinine clearance 15 to <30 mL/minute), end-stage renal disease (creatinine clearance <15 mL/minute), or moderate to severe hepatic impairment (total bilirubin greater than 1.5 the upper limit of normal and any aspartate aminotransferase level) on the pharmacokinetics of epcoritamab-bysp are unknown. In patients who received the recommended dosage of epcoritamab-bysp, geometric mean average concentration following the first full 48 mg dose was 31% lower in the higher body weight group (85 to 172 kg) and 13% higher in the lower body weight group (39 to 65 kg) compared to patients with a body weight of 65 to <85 kg.

USES: This medication is used to treat certain types of cancer (diffuse large B-cell lymphoma-DLBCL, high-grade B-cell lymphoma, follicular lymphoma). Epcoritamab works by slowing or stopping the growth of cancer cells.

Generic name: epcoritamab-bysp
Pronunciation: (EP-koe-RIT-a-mab)
Drug class: Antineoplastic - Immunotherapy, T-cell Engager
Therapeutic class: Antineoplastics

Reference product & biosimilars

No reference, biosimilar or interchangeable associated with this drug.

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Indications

The following indications are listed for Epkinly:

  • Diffuse Large B-Cell Lymphoma
  • Follicular Lymphoma

Also known as: Follicular B-Cell Lymphoma, Follicular B-Cell Non-Hodgkin's Lymphoma.

Dosing

If cytokine release syndrome (CRS) is suspected, withhold epcoritamab-bysp until resolved. Manage according to the recommendations in Table 8 and consider further management per current practice guidelines. Administer supportive therapy for CRS, which may include intensive care for severe or life-threatening CRS.

At the first signs of immune effector cell-associated neurological toxicity syndrome (ICANS), withhold epcoritamab-bysp and consider neurology evaluation. Rule out other causes of neurologic symptoms. Provide supportive therapy, which may include intensive care, for ICANS. Manage ICANS according to the recommendations in Table 9 and consider further management per current practice guidelines.

Manage adverse reactions other than CRS and ICANS according to the recommendations in Table 10.

Table 8. Recommendations for Management of Cytokine Release Syndrome

Grade Presenting Symptoms Recommended Actions Grade 1 Temperature >=38degreesC Withhold epcoritamab-bysp and manage per current practice guidelines. Ensure CRS symptoms are resolved prior to next dose of epcoritamab-bysp. Grade 2 Temperature >=38degreesC Withhold with hypotension not epcoritamab-bysp and requiring vasopressors manage per current and/or hypoxia requiring practice guidelines. low-flow oxygen by nasal Ensure CRS symptoms are cannula or blow-by. resolved prior to the next dose of epcoritamab-bysp. Administer premedication prior to next dose of epcoritamab-bysp. For the next dose of epcoritamab-bysp, moni tor more frequently and consider hospitalization. Grade 3 Temperature >=38degreesC Withhold with hypotension epcoritamab-bysp and requiring a vasopressor manage per current (with or without practice guidelines, vasopressin) and/or which may include hypoxia requiring intensive care. Ensure high-flow oxygen by CRS symptoms are nasal cannula, face resolved prior to next mask, non-rebreather dose of mask, or Venturi mask. epcoritamab-bysp. Administer premedication prior to next dose of epcoritamab-bysp. Hospitalize f or the next dose of epcoritamab-bysp. Grade 3 Recurrent Grade 3 CRS Permanently discontinue epcoritamab-bysp. Manage CRS per current practice guidelines and provide supportive therapy, which may include intensive care. Grade 4 Temperature >=38degreesC Permanently discontinue with hypotension epcoritamab-bysp. Manage requiring multiple CRS per current practice vasopressors (excluding guidelines and provide vasopressin) and/or supportive therapy, hypoxia requiring oxygen which may include by positive pressure intensive care. (e.g., CPAP, BiPAP, intubation, and mechanical ventilation).

Based on the American Society for Transplantation and Cellular Therapy (ASTCT) 2019 grading for CRS.

Premedication may mask fever, therefore if clinical presentation is consistent with CRS, follow these management guidelines.

Low-flow oxygen defined as oxygen delivered at <6L/minute; high-flow oxygen defined as oxygen delivered at >=6 L/minute.

Refer to Table 6 or 7 for information on restarting epcoritamab-bysp after dosage delays.

If Grade 2 or 3 CRS occurs with the second full dose (48 mg) or beyond, administer CRS pre- and post-administration medications with each subsequent dose until an epcoritamab-bysp dose is given without subsequent CRS Grade 2 or higher. Refer to Table 1 for additional information on pre- and post-administration medications.

Table 9. Recommendations for Management of Immune Effector Cell-Associated Neurotoxicity Syndrome

Grade Presenting Symptoms Recommended Actions Grade 1 Immune Effector Withhold Cell-associated epcoritamab-bysp until Encephalopathy (ICE) ICANS resolves. Monitor score 7--9, or depressed neurological symptoms level of consciousness: and consider awakens spontaneously consultation with neurologist and other specialists for further evaluation and management, including consideration for starting non-sedating, anti-seizure medicatio ns for seizure prophylaxis. Grade 2 ICE score 3--6, or Withhold depressed level of epcoritamab-bysp until consciousness: awakens ICANS resolves. to voice Administer dexamethasonef 10 mg IV every 6 hours. Continue dexamethasone until resolution to Grade 1 or less, then taper. Monitor neurologic symptoms and consider consultation with neurologist and other spec ialists for further evaluation and management, including consideration for starting non-sedating, anti-seizure medications for seizure prophylaxis. Grade 3 ICE score 0--2, Or First occurrence of depressed level of Grade 3 ICANS: withhold consciousness: awakens epcoritamab-bysp until only to tactile stimuli, ICANS resolves. Or seizures, either any Administer dexamethasone clinical seizure, focal 10 mg IV every 6 hours. or generalized, that Continue dexamethasone resolves rapidly, or until resolution to non-convulsive seizures Grade 1 or less, then on electroencephalogram taper. Monitor that resolve with neurologic symptoms and intervention, consider consultati Or raised intracranial on with neurologist and pressure: focal/local other specialists for edema on neuroimaging further evaluation and management, including consideration for starting non-sedating, anti-seizure medications for seizure prophylaxis. Provide supportive therapy, which may include intensive care. Grade 3 Recurrent Grade 3 ICANS Permanently discontinue epcoritamab-bysp. Administer dexamethasone 10 mg IV every 6 hours. Continue dexamethasone use until resolution to Grade 1 or less, then taper. Monitor neurologic symptoms and consider consultation with neurologist and other special ists for further evaluation and management, including consideration for starting non-sedating, anti-seizure medications for seizure prophylaxis. Provide supportive therapy, which may include intensive care. Grade 4 ICE score of 0, Or depressed level of consciousness: either patient is unarousable or requires vigorous or repetitive tactile stimuli to arouse or stupor or coma. Or seizures, either: life-threatening prolonged seizure (> 5 minutes), or repetitive clinical or electrical seizures Permanently discontinue without return to epcoritamab-bysp. baseline in between, Or Administer dexamethasone motor findings: deep 10 mg IV every 6 hours. focal motor weakness, Continue dexamethasone such as hemiparesis or until resolution to paraparesis, Or raised Grade 1 or less, then intracranial taper. Alternatively, pressure/cerebral edema, consider administration with signs/symptoms such of methylprednisolone as diffuse cerebral 1,000 mg IV per day and edema on neuroima continu ging, or decerebrate or e methylprednisolone decorticate posturing, 1,000 mg IV per day for or cranial nerve VI 2 more days. Monitor palsy, or papilledema, neurologic symptoms and or Cushing's triad. consider consultation with neurologist and other specialists for further evaluation and management, including consideration for starting non-sedating, anti-seizure m edications for seizure prophylaxis. Provide supportive therapy, which may include intensive care.

Based on American Society for Transplantation and Cellular Therapy 2019 grading for ICANS.

Management is determined by the most severe event not attributable to any other cause.

If patient is arousable and able to perform ICE assessment, assess: Orientation (oriented to year, month, city, hospital = 4 points); Naming (names 3 objects, e.g., point to clock, pen, button = 3 points); Following Commands (e.g., ''show me 2 fingers'' or ''close your eyes and stick out your tongue'' = 1 point); Writing (ability to write a standard sentence = 1 point); and Attention (count backwards from 100 by 10 = 1 point). If patient is unarousable and unable to perform ICE Assessment (Grade 4 ICANS) = 0 points.

Not attributable to any other cause.

See Table 6 and Table 7 for recommendations on restarting epcoritamab-bysp after dosage delays.

All references to dexamethasone administration are dexamethasone or equivalent.

Table 10. Recommended Dosage Modification for Other Adverse Reactions

Adverse Reaction Severity Recommended Action Infections Grade 1--4 Withhold epcoritamab-bysp in patients with active infection, until the infection resolves. For Grade 4, consider permanent discontinuation of epcoritamab-bysp. Neutropenia Absolute neutrophil Withhold count 500 cells/mm3 epcoritamab-bysp until absolute neutrophil count is 500 cells/mm3 or higher. Thrombocytopenia Platelet count less than Withhold 50,000 cells/mm3 epcoritamab-bysp until platelet count is 50,000 cells/mm or higher. Other Adverse Reactions Grade 3 or higher Withhold epcoritamab-bysp until the toxicity resolves to Grade 1 or baseline.

Based on National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0.

See Table 6 or Table 7 for recommendations on restarting epcoritamab-bysp after dosage delays.

Drug interactions

Epcoritamab-bysp is expected to be metabolized into small peptides by catabolic pathways.

No clinical studies evaluating the drug interaction potential of epcoritamab-bysp have been conducted.

Contraindications

*None.

Adverse reactions

The most common adverse effects of epcoritamab-bysp (>=20% of patients) reported in clinical studies for the treatment of large B-cell lymphoma include cytokine release syndrome, fatigue, musculoskeletal pain, injection site reactions, pyrexia, abdominal pain, nausea, and diarrhea. The most common Grade 3 to 4 laboratory abnormalities (>=10%) are decreased lymphocyte count, decreased neutrophil count, decreased white blood cell count, decreased hemoglobin, and decreased platelets.

The most common adverse effects of epcoritamab-bysp (>=20% of patients) reported in clinical studies for the treatment of follicular lymphoma include injection site reactions, cytokine release syndrome, COVID-19, fatigue, upper respiratory tract infection, musculoskeletal pain, rash, diarrhea, pyrexia, cough, and headache. The most common Grade 3 to 4 laboratory abnormalities (>=10%) are decreased lymphocyte count, decreased neutrophil count, decreased white blood cell count, and decreased hemoglobin.

Precautions

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ICD codes

CodeTypeDescription
Diffuse large b-cell lymphoma
C83.3ICD10CMDiffuse large b-cell lymphoma
C83.30ICD10CMDiffuse large b-cell lymphoma, unspecified site
C83.31ICD10CMDiffuse large b-cell lymphoma, lymph nodes of head, face, and neck
C83.32ICD10CMDiffuse large b-cell lymphoma, intrathoracic lymph nodes
C83.33ICD10CMDiffuse large b-cell lymphoma, intra-abdominal lymph nodes
C83.34ICD10CMDiffuse large b-cell lymphoma, lymph nodes of axilla and upper limb
C83.35ICD10CMDiffuse large b-cell lymphoma, lymph nodes of inguinal region and lower limb
C83.36ICD10CMDiffuse large b-cell lymphoma, intrapelvic lymph nodes
C83.37ICD10CMDiffuse large b-cell lymphoma, spleen
C83.38ICD10CMDiffuse large b-cell lymphoma, lymph nodes of multiple sites
C83.39ICD10CMDiffuse large b-cell lymphoma, extranodal and solid organ sites
C83.398ICD10CMDiffuse large b-cell lymphoma of other extranodal and solid organ sites
Follicular lymphoma
C82ICD10CMFollicular lymphoma
C82.0ICD10CMFollicular lymphoma grade I
C82.00ICD10CMFollicular lymphoma grade i, unspecified site
C82.01ICD10CMFollicular lymphoma grade i, lymph nodes of head, face, and neck
C82.02ICD10CMFollicular lymphoma grade i, intrathoracic lymph nodes
C82.03ICD10CMFollicular lymphoma grade i, intra-abdominal lymph nodes
C82.04ICD10CMFollicular lymphoma grade i, lymph nodes of axilla and upper limb
C82.05ICD10CMFollicular lymphoma grade i, lymph nodes of inguinal region and lower limb
C82.06ICD10CMFollicular lymphoma grade i, intrapelvic lymph nodes
C82.07ICD10CMFollicular lymphoma grade i, spleen
C82.08ICD10CMFollicular lymphoma grade i, lymph nodes of multiple sites
C82.09ICD10CMFollicular lymphoma grade i, extranodal and solid organ sites
C82.1ICD10CMFollicular lymphoma grade II
C82.10ICD10CMFollicular lymphoma grade Ii, unspecified site
C82.11ICD10CMFollicular lymphoma grade Ii, lymph nodes of head, face, and neck
C82.12ICD10CMFollicular lymphoma grade Ii, intrathoracic lymph nodes
C82.13ICD10CMFollicular lymphoma grade Ii, intra-abdominal lymph nodes
C82.14ICD10CMFollicular lymphoma grade Ii, lymph nodes of axilla and upper limb
C82.15ICD10CMFollicular lymphoma grade Ii, lymph nodes of inguinal region and lower limb
C82.16ICD10CMFollicular lymphoma grade Ii, intrapelvic lymph nodes
C82.17ICD10CMFollicular lymphoma grade Ii, spleen
C82.18ICD10CMFollicular lymphoma grade Ii, lymph nodes of multiple sites
C82.19ICD10CMFollicular lymphoma grade Ii, extranodal and solid organ sites
C82.2ICD10CMFollicular lymphoma grade IIi, unspecified
C82.20ICD10CMFollicular lymphoma grade IIi, unspecified, unspecified site
C82.21ICD10CMFollicular lymphoma grade IIi, unspecified, lymph nodes of head, face, and neck
C82.22ICD10CMFollicular lymphoma grade IIi, unspecified, intrathoracic lymph nodes
C82.23ICD10CMFollicular lymphoma grade IIi, unspecified, intra-abdominal lymph nodes
C82.24ICD10CMFollicular lymphoma grade IIi, unspecified, lymph nodes of axilla and upper limb
C82.25ICD10CMFollicular lymphoma grade IIi, unspecified, lymph nodes of inguinal region and lower limb
C82.26ICD10CMFollicular lymphoma grade IIi, unspecified, intrapelvic lymph nodes
C82.27ICD10CMFollicular lymphoma grade IIi, unspecified, spleen
C82.28ICD10CMFollicular lymphoma grade IIi, unspecified, lymph nodes of multiple sites
C82.29ICD10CMFollicular lymphoma grade IIi, unspecified, extranodal and solid organ sites
C82.3ICD10CMFollicular lymphoma grade IIia
C82.30ICD10CMFollicular lymphoma grade IIia, unspecified site
C82.31ICD10CMFollicular lymphoma grade IIia, lymph nodes of head, face, and neck
C82.32ICD10CMFollicular lymphoma grade IIia, intrathoracic lymph nodes
C82.33ICD10CMFollicular lymphoma grade IIia, intra-abdominal lymph nodes
C82.34ICD10CMFollicular lymphoma grade IIia, lymph nodes of axilla and upper limb
C82.35ICD10CMFollicular lymphoma grade IIia, lymph nodes of inguinal region and lower limb
C82.36ICD10CMFollicular lymphoma grade IIia, intrapelvic lymph nodes
C82.37ICD10CMFollicular lymphoma grade IIia, spleen
C82.38ICD10CMFollicular lymphoma grade IIia, lymph nodes of multiple sites
C82.39ICD10CMFollicular lymphoma grade IIia, extranodal and solid organ sites
C82.4ICD10CMFollicular lymphoma grade IIib
C82.40ICD10CMFollicular lymphoma grade IIib, unspecified site
C82.41ICD10CMFollicular lymphoma grade IIib, lymph nodes of head, face, and neck
C82.42ICD10CMFollicular lymphoma grade IIib, intrathoracic lymph nodes
C82.43ICD10CMFollicular lymphoma grade IIib, intra-abdominal lymph nodes
C82.44ICD10CMFollicular lymphoma grade IIib, lymph nodes of axilla and upper limb
C82.45ICD10CMFollicular lymphoma grade IIib, lymph nodes of inguinal region and lower limb
C82.46ICD10CMFollicular lymphoma grade IIib, intrapelvic lymph nodes
C82.47ICD10CMFollicular lymphoma grade IIib, spleen
C82.48ICD10CMFollicular lymphoma grade IIib, lymph nodes of multiple sites
C82.49ICD10CMFollicular lymphoma grade IIib, extranodal and solid organ sites
C82.5ICD10CMDiffuse follicle center lymphoma
C82.50ICD10CMDiffuse follicle center lymphoma, unspecified site
C82.51ICD10CMDiffuse follicle center lymphoma, lymph nodes of head, face, and neck
C82.52ICD10CMDiffuse follicle center lymphoma, intrathoracic lymph nodes
C82.53ICD10CMDiffuse follicle center lymphoma, intra-abdominal lymph nodes
C82.54ICD10CMDiffuse follicle center lymphoma, lymph nodes of axilla and upper limb
C82.55ICD10CMDiffuse follicle center lymphoma, lymph nodes of inguinal region and lower limb
C82.56ICD10CMDiffuse follicle center lymphoma, intrapelvic lymph nodes
C82.57ICD10CMDiffuse follicle center lymphoma, spleen
C82.58ICD10CMDiffuse follicle center lymphoma, lymph nodes of multiple sites
C82.59ICD10CMDiffuse follicle center lymphoma, extranodal and solid organ sites
C82.6ICD10CMCutaneous follicle center lymphoma
C82.60ICD10CMCutaneous follicle center lymphoma, unspecified site
C82.61ICD10CMCutaneous follicle center lymphoma, lymph nodes of head, face, and neck
C82.62ICD10CMCutaneous follicle center lymphoma, intrathoracic lymph nodes
C82.63ICD10CMCutaneous follicle center lymphoma, intra-abdominal lymph nodes
C82.64ICD10CMCutaneous follicle center lymphoma, lymph nodes of axilla and upper limb
C82.65ICD10CMCutaneous follicle center lymphoma, lymph nodes of inguinal region and lower limb
C82.66ICD10CMCutaneous follicle center lymphoma, intrapelvic lymph nodes
C82.67ICD10CMCutaneous follicle center lymphoma, spleen
C82.68ICD10CMCutaneous follicle center lymphoma, lymph nodes of multiple sites
C82.69ICD10CMCutaneous follicle center lymphoma, extranodal and solid organ sites
C82.8ICD10CMOther types of follicular lymphoma
C82.80ICD10CMOther types of follicular lymphoma, unspecified site
C82.81ICD10CMOther types of follicular lymphoma, lymph nodes of head, face, and neck
C82.82ICD10CMOther types of follicular lymphoma, intrathoracic lymph nodes
C82.83ICD10CMOther types of follicular lymphoma, intra-abdominal lymph nodes
C82.84ICD10CMOther types of follicular lymphoma, lymph nodes of axilla and upper limb
C82.85ICD10CMOther types of follicular lymphoma, lymph nodes of inguinal region and lower limb
C82.86ICD10CMOther types of follicular lymphoma, intrapelvic lymph nodes
C82.87ICD10CMOther types of follicular lymphoma, spleen
C82.88ICD10CMOther types of follicular lymphoma, lymph nodes of multiple sites
C82.89ICD10CMOther types of follicular lymphoma, extranodal and solid organ sites
C82.9ICD10CMFollicular lymphoma, unspecified
C82.90ICD10CMFollicular lymphoma, unspecified, unspecified site
C82.91ICD10CMFollicular lymphoma, unspecified, lymph nodes of head, face, and neck
C82.92ICD10CMFollicular lymphoma, unspecified, intrathoracic lymph nodes
C82.93ICD10CMFollicular lymphoma, unspecified, intra-abdominal lymph nodes
C82.94ICD10CMFollicular lymphoma, unspecified, lymph nodes of axilla and upper limb
C82.95ICD10CMFollicular lymphoma, unspecified, lymph nodes of inguinal region and lower limb
C82.96ICD10CMFollicular lymphoma, unspecified, intrapelvic lymph nodes
C82.97ICD10CMFollicular lymphoma, unspecified, spleen
C82.98ICD10CMFollicular lymphoma, unspecified, lymph nodes of multiple sites
C82.99ICD10CMFollicular lymphoma, unspecified, extranodal and solid organ sites

ICD code information from First Databank (FDB).

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Last reviewed · Source: First Databank (FDB) drug data