Clinical trial No longer in our active list Phase 1 Interventional Ages 18 to 100

Epcoritamab treatment for chronic lymphocytic leukemia and Richter syndrome

Official title: Correlative Study of Epcoritamab in Chronic Lymphocytic Leukemia and Richter Syndrome

Run by National Institutes of Health Clinical Center (CC) · NCT06676033 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing if a new treatment called epcoritamab can help people with chronic lymphocytic leukemia and Richter syndrome by looking at how it affects their blood and lymph nodes.

More Chronic Lymphocytic Leukemia trials

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years to 100 Years
SexAll
Enrollment30 (estimated)
SponsorNational Institutes of Health Clinical Center (CC)
NIH
Drugs / interventionsepcoritamab, Genmab, immunotherapy
Locations1 site (Bethesda, Maryland)
Trial IDNCT06676033 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals currently undergoing screening for the related GCT3013-03 trial and willing to comply with study procedures.

Probably not a fit

Patients not enrolled in the GCT3013-03 trial will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the effects of epcoritamab on chronic lymphocytic leukemia (CLL) and Richter syndrome by analyzing lymph node, bone marrow, and blood samples from participants. Patients enrolled in a related trial will undergo various procedures, including biopsies and blood draws, to evaluate the pharmacodynamic effects of the treatment. The study aims to assess how epcoritamab influences the tumor microenvironment and clonal dynamics, with a focus on identifying biomarkers that could enhance treatment efficacy.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and treatment options for patients with chronic lymphocytic leukemia and Richter syndrome.

How similar studies have gone: Other studies involving T-cell engaging bispecific antibodies have shown promise, indicating potential for success in this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
* INCLUSION CRITERIA:

In order to be eligible to participate in this study, an individual must meet all of the following criteria:

* Must be undergoing screening for GCT3013-03
* Stated willingness to comply with all study procedures and availability for the duration of the study
* Ability of subject to understand and the willingness to sign a written informed consent document.

EXCLUSION CRITERIA:

None

Where it's running

  • National Institutes of Health Clinical Center
    Bethesda, Maryland, United States
    Recruiting

Study contacts

  • Principal investigator: Clare C Sun, M.D. — National Heart, Lung, and Blood Institute (NHLBI)
  • Study coordinator: Ingrid C Frey
  • Email: ingrid.frey@nih.gov
  • Phone: (301) 312-0765

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.