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A Phase 1b/2, Open-Label, Safety and Efficacy Study of Epcoritamab (GEN3013; DuoBody®-CD3 X CD20) in Relapsed/Refractory Chronic Lymphocytic Leukemia and Richter's Syndrome

Recruiting
Conditions
chronic lymphocytic leukemia
CLL
10024324
Registration Number
NL-OMON54099
Lead Sponsor
Genmab
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Recruiting
Sex
Not specified
Target Recruitment
10
Inclusion Criteria

All Subjects
• Subject must sign an ICF, prior to any screening procedures
• Must be at least 18 years of age
• ECOG performance status score of 0,1 or 2
• Evidence of CD20 positivity in a sample representative of the disease (eg,
tumor biopsy/peripheral blood/bone arrow) at Screening
• Has acceptable laboratory parameters
• A woman with reproductive potential must agree to use adequate contraception
during the trial, and for 12 months after the last administration of
epcoritamab.
• A woman of childbearing potential must have a negative serum (betahCG)
pregnancy test at Screening and a negative serum or urine pregnancy test before
treatment administration on Day 1 of every cycle.
• A woman must agree not to donate eggs (ova, oocytes) for the purposes of
assisted reproduction during the entire trial, until 12 months after last
treatment.
• A man who is sexually active with a woman of childbearing potential and has
not had a vasectomy must agree to use a barrier method of birth
control.

Criteria Specific to Subjects With R/R CLL- Dose Escalation Monotherapy (All
Cohorts) and Expansion Monotherapy (Arm 1)
• Must have active CLL/SLL disease that needs treatment.
• R/R CLL after receiving at least 2 prior lines of therapy.
• Diagnosis of CLL/SLL that meets published diagnostic criteria
• Must take prophylaxis for TLS

Inclusion Criteria Specific to Subjects With Richter's Syndrome - Expansion
Monotherapy Arm 2A
• Must have measurable disease as determined by FDG- PET CT and a CT scan (or
MRI)
• Must provide a mandatory FFPE tumor tissue sample;

Inclusion Criteria Specific to Subjects With Richter's Syndrome - Lenalidomide
Combination Therapy Expansion Arm 2B
• Have tumor biopsy-proven CD20+ DLBCL and a clinical history of CLL/SLL.
• Deemed as ineligible for chemoimmunotherapy
• Eligible for treatment with lenalidomide.
• Must have measurable disease as determined by FDG- PET CT and a CT scan (or
MRI)
• Must provide a mandatory FFPE tumor tissue sample;
• Females of childbearing potential must use 2 forms of contraception
• A woman of childbearing potential must have a negative serum (betahCG)
pregnancy test
• Males must always use a latex or synthetic condom during any sexual contact
with females of reproductive potential while taking lenalidomide

Inclusion Criteria Specific to Subjects With Richter's Syndrome - R-CHOP
Combination Therapy Expansion Arm 2C
• Have tumor biopsy-proven CD20+ DLBCL and have a clinical history of CLL/SLL.
• Eligible to receive R-CHOP per investigator determination.
• Must have measurable disease as determined by FDG- PET CT and a CT scan (or
MRI)
• Must provide a mandatory FFPE tumor tissue sample;

Inclusion Criteria Specific to Subjects with R/R CLL - Venetoclax Combination
Therapy Dose Escalation Cohorts and Expansion Arm 3
• Must have active CLL/SLL disease that needs treatment
• At least 1 of the following disease-related (constitutional) symptoms:
• Unintentional weight loss >= 10% within the previous 6 months
• Significant fatigue

Exclusion Criteria

All Subjects • Subject received prior treatment with a CD3×CD20 bsAb. • Subject
received any prior allogeneic HSCT or solid organ transplantation • Subject
received treatment with an anticancer agent, as follows: - Subject received
treatment with an investigational drug, within 4 weeks or 5 half lives,
whichever is shorter, prior to the first dose of epcoritamab. • Subject has
autoimmune disease or other diseases that require permanent or high-dose
immunosuppressive therapy • Uncontrolled autoimmune hemolytic anemia or immune
thrombocytopenia (requiring >20 mg of prednisolone daily) or other concurrent
uncontrolled medical conditions. • Unstable or uncontrolled disease/condition
related to or affecting cardiac function, eg, unstable angina, congestive heart
failure grade III or IV as classified by the New York Heart Association (see
Appendix 3), uncontrolled clinically significant cardiac arrhythmia (CTCAE v5.0
grade 2 or higher), or clinically significant ECG abnormalities • Myocardial
infarction, intracranial bleed, or stroke within the past 6 months • Subject
age >=75 and 2 or more active grade >=2 cardiovascular conditions. • Subject has
toxicities from previous anticancer therapies that have not resolved to
baseline levels or to grade 1 or less except for alopecia and peripheral
neuropathy • Subject has history or presence of clinically relevant disorder
affecting the CNS • ICE score of less than 8 at study entry • Subject has known
past or current malignancy other than inclusion diagnosis, except for: a.
Cervical carcinoma of Stage 1B or less b. Non-invasive basal cell or squamous
cell skin carcinoma c. Non-invasive, superficial bladder cancer d. Prostate
cancer with a current PSA level <0.1 ng/mL e. Any curable cancer with a CR of
>2 years duration • Subject has suspected allergies, hypersensitivity, or
intolerance to epcoritamab or another anti-CD20 mAb or its excipients (refer to
the IB for more information). • Active HBV (DNA PCR-positive). Subjects with
evidence of prior HBV but who are PCR-negative are permitted in the trial but
should receive prophylactic antiviral therapy. • Active hepatitis C (RNA
PCR-positive infection). Subjects who received treatment for HCV that was
intended to eradicate the virus may participate if hepatitis C RNA levels are
undetectable • Subject is a woman who is pregnant or breastfeeding, or who is
planning to become pregnant while enrolled in this trial or within 12 months
after the last dose of epcoritamab. • Subject is a man who plans to father a
child while enrolled in this trial or within 12 months after the last dose of
epcoritamab

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Secondary Outcome Measures
NameTimeMethod
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