Assessing the effects of venetoclax and obinutuzumab in adults with recurring chronic lymphocytic leukemia

A Multicenter, Open-Label, Phase 2 Study to Evaluate the Efficacy and Safety of Venetoclax-Obinutuzumab Retreatment in Patients With Recurring Chronic Lymphocytic Leukemia

Phase 2 Interventional AbbVie · NCT04895436

This study is testing if a combination of two medications, venetoclax and obinutuzumab, can help adults with recurring chronic lymphocytic leukemia feel better after their previous treatments.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment75 (estimated)
Ages18 Years and up
SexAll
SponsorAbbVie Industry-sponsored
Drugs / interventionsobinutuzumab
Locations58 sites (La Jolla, California and 57 other locations)
Trial IDNCT04895436 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of a combination treatment using oral venetoclax and intravenous obinutuzumab in adults with recurring chronic lymphocytic leukemia (CLL) who have previously undergone treatment. Participants will be divided into two cohorts based on the timing of their disease progression after first-line therapy. The treatment will consist of 28-day cycles of venetoclax and obinutuzumab, followed by additional cycles of venetoclax alone. The study aims to monitor changes in disease activity and any adverse events associated with the treatment.

Who should consider this trial

Good fit: Ideal candidates are adults with documented CLL who have previously responded to venetoclax combined with an anti-CD20 antibody and have experienced disease progression after a specified time frame.

Not a fit: Patients who have received intervening treatment for CLL after their initial venetoclax therapy may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new effective option for patients with recurring CLL.

How similar studies have performed: Other studies have shown promising results with similar treatment approaches for CLL, indicating potential for success in this trial.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Documented diagnosis of chronic lymphocytic leukemia (CLL) that requires treatment for CLL according to International Workshop for Chronic Lymphocytic Leukemia (iwCLL) 2018 criteria.
* Previously completed venetoclax + anti-CD20 antibody +/- X regimen as a fixed duration first-line (1L) therapy and achieved documented response, defined as complete remission, complete remission with incomplete marrow recovery, partial remission, or nodular partial remission.
* More than 24 months (Cohort 1) or 12-24 months (Cohort 2) have elapsed between last dose of venetoclax and disease progression after completion of 1L treatment.

Exclusion Criteria:

\- Received intervening treatment for CLL after completing previous treatment with a venetoclax + anti-CD20 antibody +/- X regimen.

Where this trial is running

La Jolla, California and 57 other locations

+8 more sites — see ClinicalTrials.gov for the full list.

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Chronic Lymphocytic LeukemiaVenetoclaxABT-199VenclextaGDC-0199ObinutuzumabGazyvaGA101
Last reviewed 2026-06-13 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.