Safety and Efficacy of PCI-32765 in Participants With Relapsed/Refractory Mantle Cell Lymphoma (MCL) (PCYC-1104-CA)

The primary objective of this study was to evaluate the efficacy of ibrutinib in participants with relapsed or refractory MCL.

The secondary objective was to evaluate the safety of a fixed daily dosing regimen (560 mg daily) of PCI-32765 in this population.

Primary Outcome Measures: Percentage of Participants Achieving Response [ Time Frame: The median follow-up time on study for all treated participants is 15.3 (range 1.9 - 22.3) months ]. The primary endpoint of the study was overall response rate (ORR), defined as the proportion of participants who achieved a best overall response of complete response (CR) or partial response (PR), according to the revised International Working Group Criteria for non-Hodgkin's lymphoma (Cheson et al, 2007), as assessed by the investigator. CR is a complete disappearance of all disease, no new lesions, lymph nodes must have regressed and be PET negative, spleen and liver should not be palpable and without nodules, and bone marrow must be negative. PR is a >/= 50% decrease in the sum of the product of diameters of the target lesions, and >/= 50% decrease of splenic and hepatic nodules from baseline, no new lesions and no increase in the size of liver, spleen or non-target lesions.

Secondary Outcome Measures: Number of Participants With Treatment Emergent Adverse Events (AEs) [ Time Frame: From first dose of PCI-32765 to within 30 days of last dose for each participant or until study closure ]. Number of participants who had experienced at least one treatment emergent AE. PCI-32765 and Its Metabolite (PCI-45227) AUC0-24h After Repeat Dosing of PCI-32765 [ Time Frame: Performed During the First Month of Receiving PCI-32765 ]. Area under the plasma concentration-time curve using data collected at 0, 1, 2, 4, 6-8, and 24 hours post dose (AUC0-24h)

Mean Change From Baseline to Cycle 5 in EORTC QLQ-C30 Global Health Status Score [ Time Frame: From Baseline to Cycle 5 (Week 20) ]. Mean change from baseline to Cycle 5 in the European Organisation for Research and Treatment of Cancer quality of life questionnaire (EORTC QLQ-C30) Global Health Status Score according to EORTC QLQ-C30 Scoring Manual (3rd Edition, 2001). For global health status, positive changes indicated better health status or functioning, and negative changes indicated worsening of health status or functioning. Scale scores range from 0 to 100. A change in 5 to 10 points in either direction represents a small change; 10 to 20 points represents a moderate change and greater than 20 points represents a large change.