Clinical trial · Interventional
Cladribine and Rituximab in Treating Patients With Hairy Cell Leukemia
Phase II Study of 2-Chlorodeoxyadenosine (2CDA) Followed by Rituximab in Hairy Cell Leukemia
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
This phase II trial studies the side effects and how well cladribine and rituximab work in treating patients with hairy cell leukemia. Drugs used in chemotherapy, such as cladribine, work in different ways to stop the growth of cancer cells either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Immunotherapy with monoclonal antibodies, such as rituximab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving cladribine together with rituximab may kill more cancer cells.
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Hairy Cell Leukemia | Hairy Cell Leukemia | ONTOLOGY_EXACT | 0.98 |
| Recurrent Hairy Cell Leukemia | Hairy Cell Leukemia | CURATED_BROADER | 0.78 |
Interventions
Interventions (3)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Cladribine | Drug | Cladribine | ALIAS |
| Laboratory Biomarker Analysis | Other | — | UNRESOLVED |
| Rituximab | Biological | Rituximab | ALIAS |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Treatment (cladribine and rituximab)
- description
- Patients receive cladribine IV over 2 hours QD on days 1-5 and rituximab IV once weekly for 8 weeks beginning on day 28 in the absence of disease progression or unacceptable toxicity.
- interventionNames
- Drug: Cladribine
- Other: Laboratory Biomarker Analysis
- Biological: Rituximab
Primary outcomes (5)
- measure
- Efficacy of rituximab on achievement of complete response after therapy with cladribine
- timeFrame
- At 12 weeks
- description
- Defined as the absence of hairy cells in the bone marrow or the presence of less than 1 percent atypical cells and the disappearance of all evidence of hairy cell leukemia on physical examination. Monitored using the method of Thall, Simon, Estey as extended by Thall and Sung.
- measure
- Monitoring the related toxicity for the therapy Grade 3-4
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Age 18 years and older * Diagnosis of hairy cell leukemia (HCL) established by bone marrow examination * Patients with relapsed disease are eligible if they have had no more than one prior therapy * Women of child-bearing potential must use birth control (oral contraceptive, barrier, abstinence or any other acceptable method) for the duration of the study * Performance status =\< 3 * Creatinine less than or equal to 2.0 unless related to the disease * Bilirubin less than or equal to 3.0 * Transaminases less than or equal 3 x upper limit of normal unless related to the disease * No prior investigational agent in the 4 weeks prior to initiation of therapy Exclusion Criteria: * Unable or unwilling to sign the consent form * Known infection with human immunodeficiency virus (HIV), hepatitis B or C * Presence of active infection * Presence of central nervous system (CNS) metastases * New York Heart Association classification III or IV heart disease * Prior chemotherapy (last 4 weeks)
References
Publications (1)
- DERIVEDRavandi F, O'Brien S, Jorgensen J, Pierce S, Faderl S, Ferrajoli A, Koller C, Challagundla P, York S, Brandt M, Luthra R, Burger J, Thomas D, Keating M, Kantarjian H. Phase 2 study of cladribine followed by rituximab in patients with hairy cell leukemia. Blood. 2011 Oct 6;118(14):3818-23. doi: 10.1182/blood-2011-04-351502. Epub 2011 Aug 5. PMID 21821712