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A Time-Limited Approach to Treatment With Ibrutinib for Chronic Lymphocytic Leukemia and Small Lymphocytic Lymphoma

A Phase 2 Time-Limited Approach to Front-Line Ibrutinib for Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma Patients Who Achieve Complete Remission or Partial Remission With Undetectable Minimal Residual Disease

Status
Withdrawn
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04694560
Enrollment
0
Registered
2021-01-05
Start date
2020-12-22
Completion date
2023-03-06
Last updated
2025-05-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Lymphocytic Leukemia, CLL, CLL/SLL, SLL, Small Lymphocytic Lymphoma

Keywords

Small Lymphocytic Lymphoma, Chronic Lymphocytic Leukemia, CLL/SLL, SLL, CLL, Ibrutinib, Ibrutinib monotherapy, anti-CD20 monoclonal antibody, MRD, U-MRD, 20-284, Memorial Sloan Kettering Cancer Center

Brief summary

The purpose of this study is to find out whether people with CLL or SLL who are currently receiving treatment with ibrutinib can stop treatment and remain off-treatment for at least 12 months, if they have achieved complete or partial remission of their disease.

Interventions

OTHERTreatment Free Observation

Participants without evidence of clinical relapse will remain off therapy and continue serial monitoring through end of study at 24 cycles. Participants with clinical relapse will continue to be monitored off therapy through 24 cycles or until meeting criteria for treatment per iwCLL criteria. If participants experience clinical relapse requiring treatment, radiology assessment, disease assessment, and testing for resistance mutations will be performed. Participants will be observed for an additional 12 cycles following start of reintroduction of therapy.

Sponsors

Pharmacyclics LLC.
CollaboratorINDUSTRY
Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* ≥ 18-years-old * Diagnosis of CLL or SLL confirmed by the enrolling institution * Negative del(17p) test confirmed by FISH testing prior to initiating treatment with ibrutinib * Receiving commercial treatment with an ibrutinib-based regimen in the front-line setting as defined below with the intent to discontinue therapy on C1D1: 1. Ibrutinib monotherapy 2. Ibrutinib in combination with anti-CD20 monoclonal antibody (Patients must have completed the anti-CD20 monoclonal antibody portion of the regimen prior to signing consent) * Patients must have received ibrutinib-based therapy for at least 15 months. Dose interruptions and reductions during this treatment period may have been carried out per treating provider discretion. * Response evaluation performed by radiology assessment (CT or MRI imaging of neck / chest / abdomen / pelvis) confirming complete remission or partial remission by iwCLL criteria. * Peripheral blood (by flow cytometry per institutional standards) testing for MRD confirming U-MRD to a sensitivity of 10\^-4. MRD testing must be confirmed to follow ERIC consensus criteria. 1. CR with or without U-MRD in peripheral blood 2. PR with U-MRD in peripheral blood

Exclusion criteria

* Any life-threatening illness, medical condition, or organ system dysfunction that, in the investigator's opinion, could compromise the subject's safety or put the study outcomes at undue risk.. * Unwilling or unable to participate in all required study evaluations and procedures. Unable to understand the purpose and risks of the study and to provide a signed and dated informed consent form (ICF) and authorization to use protected health information (in accordance with national and local patient privacy regulations).

Design outcomes

Primary

MeasureTime frameDescription
Tumor Free Survival rateAt the end of Cycle 24 (each cycle is 28 days) cycles +/- 14 daysParticipants will be evaluated by iwCLL / International Workshop on Chronic Lymphocytic Leukemia criteria

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026