Chronic Lymphocytic Leukemia (CLL) Clinical Trials

24 recruitingLast updated: June 18, 2026

There are 24 actively recruiting chronic lymphocytic leukemia (cll) clinical trials across 18 countries. Studies span Phase 2, Phase 1, Early Phase 1. Top locations include Bethesda, Maryland, United States, Salt Lake City, Utah, United States, Cincinnati, Ohio, United States. Updated daily from ClinicalTrials.gov.


Chronic Lymphocytic Leukemia (CLL) Trials at a Glance

24 actively recruiting trials for chronic lymphocytic leukemia (cll) are listed on ClinicalTrialsFinder across 6 cities in 18 countries. The largest study group is Phase 2 with 10 trials, with the heaviest enrollment activity in Bethesda, Salt Lake City, and Cincinnati. Lead sponsors running chronic lymphocytic leukemia (cll) studies include AbbVie, Nurix Therapeutics, Inc., and National Heart, Lung, and Blood Institute (NHLBI).

Browse chronic lymphocytic leukemia (cll) trials by phase

Treatments under study

About Chronic Lymphocytic Leukemia (CLL) Clinical Trials

Looking for clinical trials for Chronic Lymphocytic Leukemia (CLL)? There are currently 22 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Chronic Lymphocytic Leukemia (CLL) trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Chronic Lymphocytic Leukemia (CLL) clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 24 trials

Recruiting
Phase 1

A Study of NX-5948 in Adults With Relapsed/Refractory B-cell Malignancies

Diffuse Large B-Cell Lymphoma (DLBCL)Chronic Lymphocytic Leukemia (CLL)Small Lymphocytic Lymphoma (SLL)+6 more
Nurix Therapeutics, Inc.572 enrolled62 locationsNCT05131022
Recruiting
Phase 2

A Study of NX-5948 in Adults With CLL/SLL Previously Treated With a Bruton's Tyrosine Kinase Inhibitor and a B-cell Lymphoma-2 Inhibitor (DAYBreak CLL-201)

Chronic Lymphocytic Leukemia (CLL)Small Lymphocytic Lymphoma (SLL)
Nurix Therapeutics, Inc.100 enrolled30 locationsNCT07221500
Recruiting

Impact of Targeted Therapy on Cancer-Related Cognitive Impairment

Chronic Lymphocytic Leukemia (CLL)Chronic Myeloid Leukemia, BCR-ABL1 PositiveDisease/Condition Name Cancer-related Cognitive Dysfunction
University of Rochester NCORP Research Base400 enrolled1 locationNCT07638007
Recruiting

Collection of Human Samples to Study Hairy Cell and Other Leukemias, and to Develop Recombinant Immunotoxins for Cancer Treatment

Chronic Lymphocytic Leukemia (CLL)Hairy Cell Leukemia (HCL)Non-Hodgkins Lymphoma (NHL)+2 more
National Cancer Institute (NCI)1,263 enrolled1 locationNCT01087333
Recruiting

Observational Study of Cardiac Arrhythmias During Treatment With BTK Inhibitors or Venetoclax

Mantle Cell LymphomaSudden Cardiac DeathChronic Lymphocytic Leukemia (CLL)+3 more
National Heart, Lung, and Blood Institute (NHLBI)135 enrolled1 locationNCT05724121
Recruiting
Early Phase 1

Immune Profiling of CLL/SLL Treated With First-Line Pirtobrutinib

Chronic Lymphocytic Leukemia (CLL)Small Lymphocytic Lymphoma (SLL)
National Heart, Lung, and Blood Institute (NHLBI)30 enrolled1 locationNCT07428707
Recruiting

Observational Study of Acalabrutinib in Patients With Chronic Lymphocytic Leukaemia in the United Kingdom

Chronic Lymphocytic Leukemia (CLL)
AstraZeneca350 enrolled29 locationsNCT05557695
Recruiting
Phase 1

A Phase 1 Study of UB-VV111 With and Without Rapamycin in Relapsed/Refractory CD19+ B-cell Malignancies

Lymphoma, B-CellChronic Lymphocytic Leukemia (CLL)Lymphoma, Non-Hodgkin (NHL)+1 more
Umoja Biopharma106 enrolled8 locationsNCT06528301
Recruiting
Early Phase 1

A Clinical Study Evaluating the Safety and Efficacy of GT801 Injection in Adult Patients With Relapsed/Refractory CD19-positive B-cell Hematologic Malignancies and Autoimmune Hemolytic Anemia

Chronic Lymphocytic Leukemia (CLL)B-cell Acute Lymphoblastic Leukemia (B-ALL)Autoimmune Hemolytic Anemia, AIHA+1 more
Grit Biotechnology28 enrolled2 locationsNCT07205315
Recruiting
Phase 2

Study of Zanubrutinib, Obinutuzumab, and Venetoclax in Patients With Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Leukemia (SLL)

Chronic Lymphocytic Leukemia (CLL)Small Lymphocytic Leukemia (SLL)
Memorial Sloan Kettering Cancer Center230 enrolled8 locationsNCT03824483
Recruiting

Predictors of Health-Related QOL in Adults With CLL or Small Lymphocytic Lymphoma

Chronic Lymphocytic Leukemia (CLL)Small Lymphocytic Lymphoma (SLL)
H. Lee Moffitt Cancer Center and Research Institute100 enrolled1 locationNCT07030400
Recruiting
Phase 1

A Study of NX-2127 in Adults With Relapsed/Refractory B-cell Malignancies

Diffuse Large B-Cell Lymphoma (DLBCL)Chronic Lymphocytic Leukemia (CLL)Small Lymphocytic Lymphoma (SLL)+5 more
Nurix Therapeutics, Inc.248 enrolled16 locationsNCT04830137
Recruiting
Phase 1Phase 2

CAR-20/19-T Cells in Patients With Relapsed Refractory B Cell Malignancies

Diffuse Large B Cell LymphomaFollicular LymphomaMarginal Zone Lymphoma+5 more
Medical College of Wisconsin100 enrolled1 locationNCT04186520
Recruiting
Phase 2

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)
AbbVie75 enrolled58 locationsNCT04895436
Recruiting

Registry Platform Hematologic Malignancies (RUBIN) - Extension of Tumor Registry Lymphatic Neoplasms

Diffuse Large B-Cell Lymphoma (DLBCL)Chronic Lymphocytic Leukemia (CLL)Follicular Lymphoma ( FL)+3 more
iOMEDICO AG2,950 enrolled1 locationNCT06043011
Recruiting
Phase 2

A Study of Venetoclax in Participants With Relapsed or Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma

Chronic Lymphocytic Leukemia (CLL)Small Lymphocytic Lymphoma (SLL)
AbbVie110 enrolled31 locationsNCT02966756
Recruiting

LEF1 EXPRESSION IN B-CELL CHRONIC LYMPHOCYTIC LEUKEMIA PATIENTS: A MARKER FOR DIAGNOSIS AND SURVIVAL PREDICTION

Chronic Lymphocytic Leukemia (CLL) / Small Lymphocytic Lymphoma (SLL)
IRCCS Azienda Ospedaliero-Universitaria di Bologna350 enrolled1 locationNCT07313982
Recruiting

Study of the Use of Venetoclax in Participants With Chronic Lymphocytic Leukemia (CLL) Under Real-Life Setting

Chronic Lymphocytic Leukemia (CLL)
AbbVie500 enrolled70 locationsNCT03342144
Recruiting
Phase 2

Zanubrutinib and Venetoclax in CLL (ZANU-VEN)

Chronic Lymphocytic Leukemia (CLL)Small Lymphocytic Lymphoma (SLL)
Dana-Farber Cancer Institute45 enrolled4 locationsNCT05168930
Recruiting
Phase 2

Venetoclax as Consolidation in CLL Patients Treated With BTK Inhibitor Monotherapy

Chronic Lymphocytic Leukemia (CLL) / Small Lymphocytic Lymphoma (SLL)
The First Affiliated Hospital with Nanjing Medical University79 enrolled1 locationNCT06958705