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Hairy cell leukemia
MONDO:0018935Hairy cell leukemia (HCL) is a rare type of leukemia in which abnormal B-lymphocytes are present in the bone marrow, spleen and peripheral blood. It is a slowly progressive chronic lymphocytic leukemia (CLL). The name comes from the abnormally shaped lymphocytes with hair-like projections.
Also known as: HCL, HCL-C, hairy cell leukemia, leukemic reticuloendotheliosis, classic hairy cell leukaemia, classic hairy cell leukemia
2056 clinical trials for this condition and its sub-types, 40 tagged with Hairy cell leukemia itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
Browse by category →Sub-types of Hairy cell leukemia
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Hairy cell leukemia variant 9 trials
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Refractory hairy cell leukemia 9 trials
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Can a second drug wipe out hidden leukemia cells?
Cure OngoingThis trial tests whether adding rituximab to the standard drug cladribine can eliminate leftover cancer cells in people with hairy cell leukemia, a rare blood cancer. Half the participants receive both drugs at the start, while the other half get rituximab later only if needed. T…
Phase 2 • Sponsor: National Cancer Institute (NCI) • Aim: Cure
Last updated Aug 20, 2026 00:00 UTC
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Targeted drug ibrutinib shows promise against rare leukemia
Disease control OngoingThis phase 2 trial tests the drug ibrutinib in 44 people with hairy cell leukemia that has come back after treatment. Ibrutinib works by blocking a protein that helps cancer cells grow. The main goal is to see how many patients achieve remission within 32 weeks.
Phase 2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Sep 17, 2026 00:00 UTC
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New hope for rare leukemia: targeted pill tackles relapse
Disease control OngoingThis study tests a pill called venetoclax for people whose hairy cell leukemia has returned after prior treatment. The drug blocks a protein that cancer cells need to survive. About 20 adults will take venetoclax to see if it shrinks tumors and improves blood counts, with the goa…
Phase 2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Sep 11, 2026 00:00 UTC
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New combo therapy shows promise for rare leukemia patients
Disease control OngoingThis study tests a combination of two drugs, vemurafenib (a pill) and obinutuzumab (an infusion), in 30 people with previously untreated hairy cell leukemia. The goal is to see how many patients achieve a complete response, meaning no signs of cancer after treatment. Participants…
Phase 2 • Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Disease control
Last updated Aug 26, 2026 00:00 UTC
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New hope for tough blood cancers: experimental drug MGD024 enters human testing
Disease control OngoingThis early-stage study tests a new drug called MGD024 in people with certain blood cancers (like leukemia and lymphoma) that came back or didn't get better with standard treatments. The main goal is to find the safest dose and watch for side effects. About 130 adults will receive…
Phase 1 • Sponsor: MacroGenics • Aim: Disease control
Last updated Jul 30, 2026 00:00 UTC
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Can a Two-Drug combo beat back Tough-to-Treat hairy cell leukemia?
Disease control OngoingThis phase 2 trial is testing whether adding the antibody rituximab to either pentostatin or bendamustine can improve outcomes for people with hairy cell leukemia that has relapsed or not responded to standard treatments. Participants are randomly assigned to one of the two drug …
Phase 2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Jul 24, 2026 00:00 UTC
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New drug duo aims to tackle rare leukemia
Disease control By invitation onlyThis phase 2 trial is testing a combination of two drugs, rituximab and zanubrutinib, in people with hairy cell leukemia or its variant. The goal is to see if this treatment can shrink or eliminate the cancer. Participants take zanubrutinib pills daily and receive rituximab infus…
Phase 2 • Sponsor: Bnai Zion Medical Center • Aim: Disease control
Last updated Jul 10, 2026 00:00 UTC
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New drug cocktail targets Hard-to-Treat lymphoma
Disease control OngoingThis study tests an experimental drug called epcoritamab given together with other anti-cancer medicines in adults with Non-Hodgkin lymphoma (NHL), a type of blood cancer. About 496 participants will receive different combinations depending on their lymphoma subtype and treatment…
Phase 2 • Sponsor: Genmab • Aim: Disease control
Last updated Jul 09, 2026 00:00 UTC
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New combo therapy targets rare blood cancer in early trial
Disease control OngoingThis early-phase study tests the safety of combining two drugs, moxetumomab pasudotox and rituximab, for people with hairy cell leukemia that has not responded to standard treatment. About 18 adults will receive up to 8 cycles of the drugs through an IV. The main goal is to find …
Phase 1 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Jul 01, 2026 00:00 UTC
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Engineered T-Cells take on tough lymphoma in early trial
Disease control OngoingThis phase I trial tests a new approach for patients with high-risk or recurrent non-Hodgkin lymphoma. After a stem cell transplant, participants receive a single infusion of their own genetically modified T-cells designed to recognize and attack cancer cells. The study aims to f…
Phase 1 • Sponsor: City of Hope Medical Center • Aim: Disease control
Last updated Jun 27, 2026 14:02 UTC
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New drug combo shows promise for Tough-to-Treat hairy cell leukemia
Disease control OngoingThis phase 2 trial tests whether a combination of two oral drugs, encorafenib and binimetinib, works better than the current drug vemurafenib for people with hairy cell leukemia that has a BRAF mutation and has either not responded to treatment or returned. About 28 adults will t…
Phase 2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Jun 27, 2026 13:06 UTC
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Engineered t cells take on tough leukemia and lymphoma
Disease control OngoingThis early-phase trial tests a two-part treatment for people with relapsed or chemotherapy-resistant B-cell leukemia or lymphoma. First, patients receive a chemotherapy drug (cyclophosphamide) to help prepare the body. Then, they get an infusion of their own T cells that have bee…
Phase 1/2 • Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Disease control
Last updated Jun 27, 2026 12:07 UTC
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New strategy aims to tame common virus after stem cell transplants
Disease control OngoingThis study tests a modified plan to prevent and treat cytomegalovirus (CMV) infection in people with blood cancers who have had a donor stem cell transplant. CMV is a common virus that can cause serious problems after transplant. The study involves 153 participants and looks at w…
Sponsor: City of Hope Medical Center • Aim: Disease control
Last updated Jun 27, 2026 09:00 UTC
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Engineered immune cells take on recurrent B-Cell cancers
Disease control OngoingThis early-stage trial tests a new cellular immunotherapy for adults with certain B-cell cancers (like lymphomas and leukemias) that have come back. Researchers take a patient's own white blood cells, modify them in the lab to better recognize and attack cancer cells, and infuse …
Phase 1 • Sponsor: City of Hope Medical Center • Aim: Disease control
Last updated Jun 27, 2026 07:54 UTC
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Can a new tracer light up cancer growth?
Diagnosis OngoingThis trial is testing a new imaging tracer called FLT, which is used with a PET scan to measure how fast tumors are growing. The study includes people with various cancers or those awaiting a biopsy for a suspicious mass. The goal is to see if FLT PET imaging can help find and di…
Sponsor: Barbara Ann Karmanos Cancer Institute • Aim: Diagnosis
Last updated Aug 12, 2026 00:00 UTC