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Acalabrutinib and Venetoclax With or Without Early Obinutuzumab for the Treatment of High Risk, Recurrent, or Refractory Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

NCT04169737 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 168

Last updated 2026-04-14

No results posted yet for this study

Summary

This phase II trial studies how well acalabrutinib and venetoclax with or without early obinutuzumab work for the treatment of chronic lymphocytic leukemia or small lymphocytic lymphoma that is high risk, has come back (recurrent), or does not respond to treatment (refractory). Acalabrutinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Venetoclax may stop the growth cancer cells by blocking BCL-2 protein needed for cell growth. Immunotherapy with monoclonal antibodies, such as obinutuzumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving acalabrutinib and venetoclax together with early obinutuzumab may improve clinical outcomes and control the disease.

Conditions

  • Recurrent Chronic Lymphocytic Leukemia
  • Recurrent Small Lymphocytic Lymphoma
  • Refractory Chronic Lymphocytic Leukemia
  • Refractory Small Lymphocytic Lymphoma

Interventions

DRUG

Acalabrutinib

Given PO

BIOLOGICAL

Obinutuzumab

Given IV

DRUG

Venetoclax

Given PO

Sponsors & Collaborators

  • National Cancer Institute (NCI)

    collaborator NIH

  • AstraZeneca

    collaborator INDUSTRY

  • Genentech, Inc.

    collaborator INDUSTRY

  • M.D. Anderson Cancer Center

    lead OTHER

Principal Investigators

  • William G Wierda · M.D. Anderson Cancer Center

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-07-29
Primary Completion
2026-07-09
Completion
2026-07-09
FDA Drug
Yes

Countries

  • United States

Study Locations

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Entities

Drugs
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04169737 on ClinicalTrials.gov