A Phase 2 interventional study of Ibrutinib in Mantle Cell Lymphoma, sponsored by M.D. Anderson Cancer Center. Active, not recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-16.
Sponsored by M.D. Anderson Cancer Center · Phase 2, Interventional, and Treatment
This phase II trial studies how well ibrutinib works in treating participants with untreated high risk smoldering mental cell lymphoma. Ibrutinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.
PRIMARY OBJECTIVE:
I. To measure the progression-free survival (PFS) in previously untreated high-risk smoldering mental cell lymphoma (MCL) patients treated with ibrutinib.
SECONDARY OBJECTIVES:
I. To evaluate the safety of ibrutinib in previously untreated high risk smoldering MCL.
II. To evaluate the response rate and duration of response of ibrutinib. III. To study clonal evolution in MCL while under ibrutinib.
EXPLORATORY OBJECTIVES:
I. To collect serial samples for our correlative study (plasma, peripheral blood mononuclear cells [PBMC], initial tumor biopsy).
OUTLINE:
Participants receive ibrutinib orally (PO) once daily (QD) on days 1-28. Courses repeat every 28 days for 5 years in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, participants are followed up every 2 months for 6 months, every 2-4 months for 2 years, then every 4-6 months thereafter.
High risk smoldering MCL (i.e. patients without any B symptoms or any symptoms related to MCL warranting immediate systemic therapy) with at least one or more of these eligibility criteria:
Exclusion Criteria:
Patients with ANY of the following risk factors:
Participants receive ibrutinib PO QD on days 1-28. Courses repeat every 28 days for 5 years in the absence of disease progression or unacceptable toxicity.
Drug: Ibrutinib
Given PO
Also known as: BTK Inhibitor PCI-32765, CRA-032765, Imbruvica, PCI-32765
Progression free survival
Will be estimated using the method of Kaplan and Meier. Comparison of time-to-event endpoints by important subgroups will be made using the log-rank test.
Time frame: Up to 3.5 years
Incidence of adverse events
Logistic regression will be utilized to assess the effect of patient prognostic factors on the toxicity rate. Toxicity data by type and severity will be summarized by frequency tables.
Time frame: Up to 3.5 years
Response rate of ibrutinib
Logistic regression will be utilized to assess the effect of patient prognostic factors on the response rate.
Time frame: Up to 3.5 years
Response duration
Will be estimated using the method of Kaplan and Meier. Comparison of time-to-event endpoints by important subgroups will be made using the log-rank test.
Time frame: Up to 3.5 years
Overall survival
Will be estimated using the method of Kaplan and Meier. Comparison of time-to-event endpoints by important subgroups will be made using the log-rank test.
Time frame: Up to 3.5 years
This study is active, not recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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M.D. Anderson Cancer Center