A Study of Nemtabrutinib (MK-1026) Versus Comparator (Investigator's Choice of Ibrutinib or Acalabrutinib) in First Line (1L) Chronic Lymphocytic Leukemia (CLL)/ Small Lymphocytic Lymphoma (SLL) (MK-1026-011/BELLWAVE-011)
The goal of this study is to evaluate nemtabrutinib compared with investigator's choice of ibrutinib or acalabrutinib in participants with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma...
A Study of Nemtabrutinib Plus Venetoclax vs Venetoclax + Rituximab (VR) in Second-line (2L) + Relapsed/Refractory (R/R) Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CLL/SLL) (MK-1026-010/BELLWAVE-010).
The purpose of this study is to assess the safety and tolerability and to confirm the dose of nemtabrutinib in combination with venetoclax in participants with R/R CLL/SLL. The primary study hypothese...
A Long-term Extension Study of PCI-32765 (Ibrutinib)
The purpose of this study is to collect long-term safety and efficacy data for participants treated with ibrutinib and to provide ongoing access to ibrutinib for participants who are currently enrolle...
A Study of Pirtobrutinib (LOXO-305) Versus Ibrutinib in Participants With Chronic Lymphocytic Leukemia (CLL)/Small Lymphocytic Lymphoma (SLL)
The purpose of Part 1 of this study is to compare the efficacy and safety of pirtobruitinib (LOXO-305) to ibrutinib in participants with CLL/SLL; participants may or may not have already had treatment...
Study of Sonrotoclax (BGB-11417) Plus Zanubrutinib (BGB-3111) Compared With Venetoclax Plus Obinutuzumab in Participants With Chronic Lymphocytic Leukemia (CLL)
The main objective of this study is to compare the efficacy of sonrotoclax plus zanubrutinib versus venetoclax plus obinutuzumab in participants with chronic lymphocytic leukemia (CLL)...
A Study to Investigate Progression-Free Survival With Sonrotoclax Plus Obinutuzumab Or Sonrotoclax Plus Rituximab Compared With Venetoclax Plus Rituximab Treatment In Patients With Relapsed and/or Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CELESTIAL-RRCLL)
The goal of this study is to compare how well sonrotoclax plus obinutuzumab works versus venetoclax plus rituximab in treating adults with relapsed and/or refractory (R/R) chronic lymphocytic leukemia...
Safety and Efficacy Study of Epcoritamab in Subjects With Relapsed/Refractory Chronic Lymphocytic Leukemia and Richter's Syndrome
The study is a global, multi-center safety and efficacy trial of epcoritamab, an antibody also known as EPKINLY™ and GEN3013 (DuoBody®-CD3xCD20). Epcoritamab will be tested either in Relapsed/refract...
A Study to Evaluate Efficacy, Safety, and PK of XEMBIFY®+Standard Medical Treatment (SMT) Compared to Placebo+SMT to Prevent Infections in Participants With HGG and Recurrent or Severe Infections Associated With B-cell Chronic Lymphocytic Leukemia, Multiple Myeloma, and Non-Hodgkin Lymphoma
The primary purpose of the study is to evaluate whether biweekly administered XEMBIFY® plus Standard Medical Treatment (SMT) over a one-year period will reduce the rate of major bacterial infections p...
A Study to Customize Ibrutinib Treatment Regimens for Participants With Previously Untreated Chronic Lymphocytic Leukemia
The purpose of this study is to evaluate the efficacy and safety of ibrutinib + venetoclax (I+V) and ibrutinib monotherapy regimens in which dosing of ibrutinib is either proactively reduced or reacti...
Study Evaluating Safety and Efficacy of JCAR017 in Subjects With Relapsed or Refractory Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Lymphoma (SLL)
This is a Phase 1/2, open-label, multicenter study to determine the efficacy and safety of JCAR017 in adult subjects with relapsed or refractory CLL or SLL. The study will include a Phase 1 part to de...
A Study of (LY3527727) Pirtobrutinib in Participants With Previously Treated Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma or Non-Hodgkin Lymphoma
Study J2N-MC-JZ01 (JZ01) is an individual-study appendix (ISA) under master protocol J2N-MC-JZNY, and represents participants from the completed originator study, clinical study LOXO-BTK-18001/J2N-OX-...
A Study of BGB-16673 Compared to Investigator's Choice in Participants With Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma Previously Exposed to Both Bruton Tyrosine Kinase (BTK) and B-cell Leukemia/Lymphoma 2 Protein (BCL2) Inhibitors
The purpose of this study is to investigate the efficacy and safety of BGB-16673 compared with investigator's choice (idelalisib plus rituximab \[for CLL only\] or bendamustine plus rituximab or venet...
A Study Evaluating the Efficacy and Safety of Pirtobrutinib in Participants With Relapsed or Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma
The main purpose of Part 1 of this study is to assess the efficacy and safety of 3 dose levels of Pirtobrutinib in participants with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (S...
Testing Early Treatment for Patients With High-Risk Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Leukemia (SLL), EVOLVE CLL/SLL Study
This phase III trial compares early treatment with venetoclax and obinutuzumab versus delayed treatment with venetoclax and obinutuzumab in patients with newly diagnosed high-risk chronic lymphocytic ...
Study of Zanubrutinib, Obinutuzumab, and Venetoclax in Patients With Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Leukemia (SLL)
The purpose of this study is to determine the rate of minimum residual disease (MRD) negative response (i.e. the rate of no evidence of disease) of the study drugs, zanubrutinib, obinutuzumab, and ven...
Acalabrutinib With or Without Obinutuzumab in Treating Patients With Early-Stage Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma
This phase II trials studies how well acalabrutinib with or without obinutuzumab works in treating patients with early-stage chronic lymphocytic leukemia or small lymphocytic lymphoma. Acalabrutinib m...
A Study to Evaluate the Risk of Tumor Lysis Syndrome (TLS) in Adult Participants Receiving Oral Venetoclax in Combination With Intravenously Infused Obinutuzumab or Oral Acalabrutinib for Previously Untreated Chronic Lymphocytic Leukemia (CLL)
Chronic lymphocytic leukemia (CLL) is the most common leukemia (cancer of blood cells). The purpose of this study is to assess the safety of venetoclax in combination with obinutuzumab or acalabrutini...
A Study to Evaluate the Effect of Venetoclax on Participants Receiving a Covalent Bruton's Tyrosine Kinase Inhibitor (cBTKi) for First-line Chronic Lymphocytic Leukemia (1L CLL) to Achieve Deep Durable Remissions to Allow Off-treatment Period.
The main purpose of the study is to evaluate if adding venetoclax to participants receiving cBTKi for the 1L CLL can achieve deep durable remissions of undetectable measurable residual disease \[uMRD ...
A Study to Investigate Sonrotoclax Combined With Zanubrutinib Versus Zanubrutinib Alone in Participants With Previously Untreated Chronic Lymphocytic Leukemia
The purpose of this study is to support the registration plan of sonrotoclax plus zanubrutinib treatment in participants with previously untreated CLL. This study is designed to assess the contributio...
Assessing Minimal Residual Disease by Next- Generation Sequencing to Minimize Exposure in People With CLL or SLL Who Have Been Treated With Venetoclax
This study will find out whether people with CLL or SLL who have received treatment with venetoclax, either alone or in combination with another drug, and who are found to be MRD-negative, can stop tr...
Study to Assess Change in Disease Activity and Adverse Events of Oral Venetoclax With Intravenous (IV) Obinutuzumab in Adult Participants With Recurring Chronic Lymphocytic Leukemia (CLL)
Chronic lymphocytic leukemia (CLL) is the most common leukemia (cancer of blood cells). The purpose of this study is to assess retreatment with venetoclax-obinutuzumab (VenG) in participants previousl...
Acalabrutinib Monotherapy vs Investigator's Choice of Treatment in Patients With CL Leukaemia and Heart Failure
This will be a global Phase IV, open-label, randomised study to evaluate the safety and tolerability of acalabrutinib (monotherapy, 100 mg orally \[po\], twice daily \[bd\]) compared to investigator's...
A Study to Investigate the Safety of Novel Dose Ramp-up Schedule(s) When Initiating Sonrotoclax in Participants Treated for Blood Cancers.
The purpose of this study is to establish the safety of novel dosing and ramp-up schedules for sonrotoclax in participants with hematological malignancies....
Zanubrutinib and Venetoclax in CLL (ZANU-VEN)
This study is being done to test the effectiveness of zanubrutinib in combination with venetoclax in participants with previously treated chronic lymphocytic leukemia (CLL) or small lymphocytic lympho...
Venetoclax-Obinutuzumab +/- Acalabrutinib in R/R CLL
This research study is studying a combination of drugs as a possible treatment for chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). The names of the study drugs involved in thi...
Zanubrutinib, Obinutuzumab, and Sonrotoclax in Previously Untreated Patients With CLL or SLL
The purpose of this study is to determine the proportion of participants who achieve undetectable measurable residual disease (uMRD) in previously untreated chronic lymphocytic leukemia (CLL) or small...
Acalabrutinib, Venetoclax and Durvalumab for the Treatment of Richter Transformation From Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma
This phase II trial tests whether acalabrutinib, venetoclax, and durvalumab work in treating patients with Richter transformation from chronic lymphocytic leukemia or small lymphocytic lymphoma. Richt...
Tafasitamab and Zanubrutinib for the Treatment of Patients With Newly Diagnosed Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma, TaZA CLL Study
This phase II trial tests how well tafasitamab and zanubrutinib works in treating patients with newly diagnosed chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL). Tafasitamab is a mo...
Top Cities for Chronic Lymphocytic Leukemia Clinical Trials
Chronic Lymphocytic Leukemia clinical trials are recruiting across 125 cities. Here are the cities with the most active studies:
About Chronic Lymphocytic Leukemia
Chronic lymphocytic leukemia (CLL) is a slow-growing cancer of the blood and bone marrow that affects B lymphocytes. It is the most common type of adult leukemia. Treatment options include targeted therapies, chemotherapy, and immunotherapy.
Clinical trials are advancing new treatments for chronic lymphocytic leukemia. Currently, 28 studies are recruiting a combined 8,154 participants across the United States. Research is being conducted by 17 organizations including Merck Sharp & Dohme LLC, Janssen Research & Development, LLC, Loxo Oncology, Inc. and 14 others.
2026 Chronic Lymphocytic Leukemia Research Landscape
As of March 2026, the chronic lymphocytic leukemia clinical trial landscape includes 28 actively recruiting studies across 125 cities in the United States. These studies are collectively seeking 8,154 participants, with an average enrollment target of 291 per study.
Research is being led by 17 different organizations, including Merck Sharp & Dohme LLC, Janssen Research & Development, LLC, Loxo Oncology, Inc., BeiGene, Genmab, and 12 others. The large number of sponsors reflects significant research interest and investment in chronic lymphocytic leukemia treatment advancement.
Geographically, chronic lymphocytic leukemia trials are most concentrated in Boston, Massachusetts (12 trials); Los Angeles, California (9 trials); Anchorage, Alaska (9 trials); Duarte, California (7 trials); Palo Alto, California (7 trials) and 7 other cities.
Featured Chronic Lymphocytic Leukemia Studies
Highlighted recruiting studies for chronic lymphocytic leukemia, selected by enrollment size and research scope.
A Study of Nemtabrutinib (MK-1026) Versus Comparator (Investigator's Choice of Ibrutinib or Acalabrutinib) in First Line (1L) Chronic Lymphocytic Leukemia (CLL)/ Small Lymphocytic Lymphoma (SLL) (MK-1026-011/BELLWAVE-011)
The goal of this study is to evaluate nemtabrutinib compared with investigator's choice of ibrutinib or acalabrutinib in participants with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) who have not received any prior therapy. The primary hypotheses are that (1) nemtabrutinib is non-inferior to ibrutinib or acalabrutinib with respect to objective response rate (ORR) per Intern...
A Study of Nemtabrutinib Plus Venetoclax vs Venetoclax + Rituximab (VR) in Second-line (2L) + Relapsed/Refractory (R/R) Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CLL/SLL) (MK-1026-010/BELLWAVE-010).
The purpose of this study is to assess the safety and tolerability and to confirm the dose of nemtabrutinib in combination with venetoclax in participants with R/R CLL/SLL. The primary study hypotheses are that the combination of nemtabrutinib plus venetoclax is superior to VR with respect to progression-free survival (PFS) per 2018 International Workshop on Chronic Lymphocytic Leukemia (iwCLL) cr...
A Long-term Extension Study of PCI-32765 (Ibrutinib)
The purpose of this study is to collect long-term safety and efficacy data for participants treated with ibrutinib and to provide ongoing access to ibrutinib for participants who are currently enrolled in ibrutinib studies that have been completed according to the parent protocol, are actively receiving treatment with ibrutinib, and who continue to benefit from ibrutinib treatment.
Frequently Asked Questions About Chronic Lymphocytic Leukemia Clinical Trials
Are there chronic lymphocytic leukemia clinical trials near me?
Yes, there are 28 chronic lymphocytic leukemia clinical trials currently recruiting across 125+ cities in the United States, including Boston, Massachusetts; Los Angeles, California; Anchorage, Alaska. Browse the studies above to find one at a location convenient for you.
How do I join a chronic lymphocytic leukemia clinical trial?
To join a chronic lymphocytic leukemia clinical trial: 1) Browse the available studies on this page, 2) Click on a study that interests you, 3) Check the study locations to find a site near you, 4) Review the eligibility criteria, and 5) Contact the study site or complete the eligibility form. The process is free and you can withdraw at any time.
Are chronic lymphocytic leukemia clinical trials free?
Yes, participation in chronic lymphocytic leukemia clinical trials is free. Study-related treatments, medical tests, and doctor visits are provided at no cost to participants. Many studies also offer compensation for your time and travel expenses.
What types of chronic lymphocytic leukemia treatments are being studied?
Current chronic lymphocytic leukemia clinical trials are testing a range of approaches. These include new drugs, combination therapies, medical devices, and other interventions sponsored by 17 research organizations.
Is it safe to participate in chronic lymphocytic leukemia clinical trials?
Clinical trials are carefully regulated by the FDA and institutional review boards (IRBs). All trials must follow strict safety protocols, and participants receive close medical monitoring throughout the study. You can withdraw from a trial at any time without penalty.
Data updated March 2, 2026 from ClinicalTrials.gov
About This Data
Clinical trial information on this page is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health (NIH) and National Library of Medicine (NLM). Study data is refreshed every hour to ensure accuracy.
Medical Disclaimer: The information provided on this page is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider before making decisions about clinical trial participation or changes to your treatment plan.
Page reviewed by the HelloStudys Research Team · Last updated March 2, 2026 · Data from ClinicalTrials.gov