Ibrutinib in Treating Patients With Relapsed or Refractory B-cell Acute Lymphoblastic Leukemia
This phase II trial studies how well ibrutinib works in treating patients with B-cell acute lymphoblastic leukemia that has come back after treatment or has not responded to other treatment. Ibrutinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.
B-cell Adult Acute Lymphoblastic Leukemia
Philadelphia Chromosome Positive Adult Precursor Acute Lymphoblastic Leukemia
Recurrent Adult Acute Lymphoblastic Leukemia
Other: laboratory biomarker analysis
|Study Design:||Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||A Phase 2 Study to Determine the Efficacy of the BTK Inhibitor Ibrutinib (PCI-32765) in Patients With Relapsed or Refractory Precursor-B Lymphoblastic Leukemia (B-ALL)|
- Objective response rate [ Time Frame: 3 months after treatment ] [ Designated as safety issue: No ]ORR will be presented with 95% confidence intervals. The association between ORR and patient and clinical characteristics will be examined by Wilcoxon's rank sum test or Fisher's exact test. The two-sided log-rank test will be used to assess the differences of time to events between groups such as age groups, or Philadelphia chromosome-positive versus Philadelphia chromosome-negative B-ALL.
- Overall survival time [ Time Frame: Up to 30 days after completion of study treatment ] [ Designated as safety issue: No ]Overall survival time will be estimated using the Kaplan-Meier method. The two-sided log-rank test will be used to assess the differences of time to events between groups such as age groups, or Philadelphia chromosome-positive versus Philadelphia chromosome-negative B-ALL.
|Study Start Date:||April 2014|
|Estimated Primary Completion Date:||June 2015 (Final data collection date for primary outcome measure)|
Experimental: Treatment (ibrutinib)
Patients receive ibrutinib PO QD on days 1-28. Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity.
Other Names:Other: laboratory biomarker analysis
I. To evaluate the efficacy of ibrutinib in patients with relapsed or refractory B-cell acute lymphoblastic leukemia (B-ALL) as measured by objective response rate (ORR).
I. To evaluate the global safety profile of ibrutinib in patients with relapsed or refractory B-ALL.
II. To assess response duration. III. To assess Bruton's tyrosine kinase (BTK) target inhibition, biomarkers, and gene expression profiles in B-ALL patient samples before and during treatment with ibrutinib.
Patients receive ibrutinib orally (PO) once daily (QD) on days 1-28. Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 30 days.
Please refer to this study by its ClinicalTrials.gov identifier: NCT02129062
|United States, Texas|
|M D Anderson Cancer Center||Recruiting|
|Houston, Texas, United States, 77030|
|Contact: Jan A. Burger 713-792-1865 firstname.lastname@example.org|
|Principal Investigator: Jan A. Burger|
|Principal Investigator:||Jan Burger||M.D. Anderson Cancer Center|