Safety and Efficacy Study of Epcoritamab in Subjects With Relapsed/Refractory Chronic Lymphocytic Leukemia and Richter's Syndrome
a study on Chronic Lymphocytic Leukemia Leukemia Lymphoma Small Lymphocytic Lymphoma Richter's Syndrome
Summary
- Eligibility
- for people ages 18 years and up (full criteria)
- Location
- at Los Angeles, California and other locations
- Dates
- study startedcompletion around
- Principal Investigator
- by Herbert A. Eradat, MD

Description
Summary
The study is a global, multi-center safety and efficacy trial of epcoritamab, an antibody also known as EPKINLY™ and GEN3013 (DuoBody®-CD3xCD20). Epcoritamab will either be studied as:
- Monotherapy, or
- Combination therapy for relapsed/refractory chronic lymphocytic leukemia (R/R CLL):
- epcoritamab + venetoclax
- epcoritamab + pirtobrutinib
- Combination therapy for Richter's Syndrome (RS):
- epcoritamab + lenalidomide
- epcoritamab + R-CHOP (i.e., rituximab, cyclophosphamide, doxorubicin hydrochloride, vincristine [Oncovin®] and prednisone).
The study includes participants with R/R CLL/small lymphocytic lymphoma (SLL) and participants with RS.
The trial consists of two parts, a dose-escalation phase (phase Ib) and an expansion phase (phase II). Participants with RS are only included in the expansion phase.
Epcoritamab will be injected subcutaneously (under the skin). Standard-of-care and combination treatments (venetoclax, pirtobrutinib, lenalidomide, and R-CHOP) will be given either orally (by mouth) or intravenously (in a vein).
Study details include:
- Study duration will be up to 5 years after the last participant's first treatment in the trial.
- The treatment duration for each participant will be between 12 months (1 year) and 24 months (2 years), depending upon the treatment arm assigned.
- The visit frequency will be either weekly, every other week, or monthly, depending upon the part of the study.
All participants will receive active drug; no one will be given placebo.
Official Title
A Phase 1b/2, Open-Label, Safety and Efficacy Study of Epcoritamab (GEN3013; DuoBody®-CD3xCD20) in Relapsed/Refractory Chronic Lymphocytic Leukemia and Richter's Syndrome
Details
The purpose of the dose-escalation phase of the trial is to determine the recommended phase 2 dose (RP2D) and the maximum tolerated dose (MTD; if reached) as well as establish the safety profile of epcoritamab monotherapy and epcoritamab + venetoclax in participants with R/R CLL.
The purpose of the expansion phase is to assess and evaluate the preliminary efficacy, safety and tolerability profiles of epcoritamab monotherapy, epcoritamab + venetoclax and epcoritamab + pirtobrutinib at the RP2D for participants with R/R CLL/SLL. Along with this, epcoritamab monotherapy, epcoritamab + lenalidomide and epcoritamab + R-CHOP will be evaluated in participants with RS to assess their efficacy, safety and tolerability profiles.
The purpose of safety run-in phase for pirtobrutinib combination therapy is to evaluate the safety and tolerability profiles of pirtobrutinib in combination with epcoritamab.
Keywords
Relapsed/Refractory Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma, Richter's Syndrome, DuoBody®, Bispecific antibodies, Anti-CD3, Anti-CD20, Leukemia, Lymphoid Leukemia, Leukemia, Lymphocytic, Chronic, B-Cell, Syndrome, Prednisone, Cyclophosphamide, Rituximab, Doxorubicin, Vincristine, Lenalidomide, Venetoclax, Pirtobrutinib, Epcoritamab, rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone, Epcoritamab in R/R CLL/SLL, Epcoritamab in RS, Epcoritamab + Venetoclax in R/R CLL/SLL, Epcoritamab + Lenalidomide in RS, Epcoritamab + R-CHOP in RS, Epcoritamab + Pirtobrutinib in R/R CLL/SLL, Fixed Duration Epcoritamab in R/R CLL/SLL
Eligibility
You can join if…
Open to people ages 18 years and up
- Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1 or 2.
- Evidence of CD20 positivity in a sample representative of the disease at Screening.
- Acceptable hematology parameters and organ function based on baseline bloodwork.
- Life expectancy >3 months on standard of care (SOC) for CLL, >3 months for RS.
- For R/R CLL arms - Must have active CLL/SLL disease requiring treatment per iwCLL 2018 criteria.
- For R/R CLL monotherapy arm - Received at least 2 prior lines of systemic anti-neoplastic therapy including a Bruton's tyrosine kinase (BTK) inhibitor.
- For all RS arms - Have tumor biopsy-proven CD20+ Diffuse large B-cell Lymphoma (DLBCL) and a clinical history of CLL/SLL.
- For all RS arms - Must have measurable disease by fluorodeoxyglucose-positron emission tomography (FDG-PET) and computed tomography (CT) or magnetic resonance imaging (MRI) scan.
- For all RS arms - Must provide mandatory formalin-fixed, paraffin-embedded (FFPE) tumor biopsy sample.
- For RS - monotherapy arm: Deemed as ineligible for chemoimmunotherapy at investigator's discretion or participant who refuses to receive intensive chemotherapy
- For RS - lenalidomide combination therapy arm
- Deemed as ineligible for chemoimmunotherapy at the investigator's discretion, or participant who refuses to receive intensive chemotherapy.
- Eligible for treatment with lenalidomide.
- Must be willing to use contraception and adhere to the Lenalidomide Pregnancy Risk Minimization Plan
- A woman must agree not to breastfeed a child during treatment and for at least 28 days after discontinuation from study.
- For RS - R-CHOP combination Therapy Arm -
- Eligible for treatment with R-CHOP.
- Females of childbearing potential must use highly effective contraceptive measures while taking R-CHOP and for 12 months after stopping treatment.
- A woman must agree not to breastfeed a child during treatment or until 12 months after last treatment.
- For R/R CLL - venetoclax combination Therapy arm - after receiving at least 1 prior line of systemic antineoplastic therapy.
- Presence of measurable disease (absolute lymphocyte count >5,000/microliter [μL], measurable lymph nodes ≥1.5 centimeters (cm) on imaging, or bone marrow involvement of CLL ≥30%).
- Females of childbearing potential must use highly effective contraceptive measures while taking venetoclax and for 30 days after stopping treatment.
- Must take prophylaxis for tumor lysis syndrome (TLS).
- A woman must agree not to breastfeed a child during treatment and for 4 months after last treatment.
- For R/R CLL pirtobrutinib combination Therapy arm:
- Must have active CLL/SLL disease requiring treatment per iwCLL 2018 criteria.
- Presence of measurable disease (absolute lymphocyte count >5,000/μL, measurable lymph nodes ≥1.5cm on imaging, or bone marrow involvement of CLL ≥30%).
- Previous treatment with at least one and a maximum 3 prior lines of therapy.
- Diagnosis of CLL/SLL that meets published diagnostic criteria.
- Females of childbearing potential must use highly effective contraceptive measures while taking pirtobrutinib and for 5 weeks after the last dose.
- A woman must agree not to breastfeed a child during treatment and until one week after last dose.
- A man who is sexually active with a woman of childbearing potential must use an effective method of contraception during treatment and for 3 months after last dose.
You CAN'T join if...
- Received prior treatment with a CD3×CD20 bispecific antibody.
- Received any prior allogeneic hematopoietic stem cell transplantation (HSCT) or solid organ transplantation.
- Received chimeric antigen receptor (CAR) T-cell therapy within 100 days or an investigational drug within 4 weeks, prior to first dose of epcoritamab.
- Autoimmune disease or other diseases that require permanent or high-dose immunosuppressive therapy.
- Received vaccination with live vaccines within 28 days.
- Clinically significant cardiac disease.
- Known current malignancy other than inclusion diagnosis.
- Has had major surgery within 4 weeks.
- Any of the following active infections:
- Hepatitis C
- Human T cell leukemia virus infection
- Active cytomegalovirus (CMV) infection
- Known history of human immunodeficiency virus (HIV).
- For R/R CLL arms - Any history of RS or evidence indicating a potential Richter's transformation. R/R CLL - Pirtobrutinib Combination Therapy Arm - Any history of RS or evidence indicating a potential Richter's transformation.
- Received venetoclax within 24 months prior to beginning venetoclax ramp-up for this trial or progressed on venetoclax treatment.
- For all RS arms - Diagnosis of Richter's syndrome not of the DLBCL subtype such as Hodgkin's lymphoma, prolymphocytic leukemia.
- RS - Lenalidomide Combination Therapy and RS Monotherapy Arms - received more than 2 prior lines of therapy for RS.
- R/R CLL - Pirtobrutinib Combination Therapy Arm - history of bleeding disorders or participants requiring therapeutic anticoagulation with warfarin or another vitamin K antagonist.
- Additional exclusion criteria specific to participants in epcoritamab monotherapy, venetoclax + epcoritamab, R-CHOP + epcoritamab, Pirtobrutinib + epcoritamab arms, participants with paraimmunoblastic transformation, prolymphocytic progression, or accelerated phase CLL.
NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.
Locations
- David Geffen School of Medicine
accepting new patients
Los Angeles California 90095 United States - Cedars-Sinai Medical Center
not yet accepting patients
Los Angeles California 90048 United States - City of Hope National Medical Center
accepting new patients
Duarte California 91010 United States
Lead Scientist at UCLA
- Herbert A. Eradat, MD
HS Clinical Professor, Medicine. Authored (or co-authored) 22 research publications
Details
- Status
- accepting new patients
- Start Date
- Completion Date
- (estimated)
- Sponsor
- Genmab
- Links
- Sign up for this study
- ID
- NCT04623541
- Phase
- Phase 1/2 research study
- Study Type
- Interventional
- Participants
- Expecting 304 study participants
- Last Updated
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