Can adding venetoclax let CLL patients pause therapy?
NCT ID NCT06524375
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This phase 2 trial is testing whether adding venetoclax to standard BTK inhibitor therapy can help people with chronic lymphocytic leukemia (CLL) achieve very deep remission. The goal is to see if patients can then safely stop all treatment for a period. The study involves 118 adults who have been on a BTK inhibitor for at least 6 months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Venetoclax (a targeted drug) added to a BTK inhibitor (ibrutinib, acalabrutinib, or zanubrutinib)
- What this could lead to
- If successful, this could allow some CLL patients to stop treatment temporarily while keeping the disease under control.
- What could go wrong
- This is a small, early-phase trial without a comparison group. Adding venetoclax may increase side effects, and not all patients will achieve deep remission.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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118 people
The number who actually took part.
- Started
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Aug 2024
- Expected to finish
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Jan 2030
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Diagnosed with CLL and currently receiving a stable dose of cBTKi (i.e., ibrutinib, acalabrutinib, or zanubrutinib) for at least 6 months for 1L treatment with a response of at least a PR per iwCLL criteria 2. Eastern Cooperative Oncology Group (ECOG) performance score of less than or equal to (\</=) 2 3. Adequate renal and liver function Exclusion Criteria: 1. Prior B-cell lymphoma (Bcl-2) inhibitor therapy 2. Anti-cluster of differentiation 20 (CD20) therapy within the month prior to screening 3. Progressive or stable disease on cBTKi 4. Transformation of CLL to aggressive non-Hodgkin lymphoma (NHL) (Richter's transformation or pro-lymphocytic leukemia) 5. History of cardiomyopathy 6. Hypersensitivity to venetoclax or to any of the excipients (e.g., trehalose) 7. Clinically significant cardiovascular disease 8. Active bleeding or history of bleeding diathesis 9. Pregnant women and nursing mothers 10. Uncontrolled autoimmune hemolytic anemia or immune thrombocytopenia
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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American Oncology Partners of Maryland, PA
Bethesda, Maryland, 20817-1915, United States
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Asante Rogue Regional Medical Center
Medford, Oregon, 97504-8332, United States
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Astera Cancer Care East Brunswick
East Brunswick, New Jersey, 08816-4096, United States
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Cancer Specialists of North Florida
Jacksonville, Florida, 32256-6932, United States
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Dana-Farber Cancer Institute - Hematologic Oncology Treatment Center
Boston, Massachusetts, 02215-5418, United States
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Fort Wayne Medical Oncology and Hematology, Inc
Fort Wayne, Indiana, 46804, United States
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Highlands Oncology Group
Springdale, Arkansas, 72762, United States
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MD Anderson Cancer Center
Houston, Texas, 77030, United States
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Medical College of Wisconsin
Milwaukee, Wisconsin, 53226, United States
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Mission Blood and Cancer - MercyOne Cancer Center
Des Moines, Iowa, 50314-3030, United States
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Nebraska Cancer Specialists
Omaha, Nebraska, 68130-2042, United States
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Nebraska Cancer Specialists St Francis - Grand Island
Grand Island, Nebraska, 68803, United States
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Ohio State University
Columbus, Ohio, 43210, United States
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Oncology Hematology Care Inc - Cincinnati - USOR
Cincinnati, Ohio, 45236-2725, United States
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Rocky Mountain Cancer Centers (Aurora) - USOR
Aurora, Colorado, 80012-5405, United States
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San Juan Oncology Associates, PC
Farmington, New Mexico, 87401, United States
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Tennessee Oncology - Midtown
Nashville, Tennessee, 37203, United States
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Tennessee Oncology, PLLC - Chattanooga
Chattanooga, Tennessee, 37404, United States
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Texas Oncology- Northeast Texas
Tyler, Texas, 75702, United States
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Willamette Valley Cancer Institute and Research Center
Eugene, Oregon, 97401-6043, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Two-Drug combo aims to push CLL into deep remission
- Can a new BTK inhibitor outsmart resistance in CLL?
- Can a new pill outsmart Drug-Resistant leukemia?
- Can engineered immune cells beat tough B-Cell cancers?
- Can a targeted drug outperform chemo for a common blood cancer?
- Can a triple drug combo outsmart High-Risk CLL?