Study to Evaluate Efficacy and Safety of BGB-3111 in Participants With Relapsed or Refractory Mantle Cell Lymphoma (MCL)

The ORR was assessed in accordance with the 2014 modification of the International Working Group on non-Hodgkin Lymphoma Criteria. The ORR was defined as the percentage of participants achieving a best overall response (BOR) of complete response (CR) or partial response (PR). The BOR was defined as the best response recorded from the start of zanubrutinib until data cut or start of new antineoplastic treatment. Participants with no post-baseline response assessment (due to any reason) were considered non-responders for BOR.

Progression-free survival was defined as the time from the starting date of zanubrutinib to the date of first documentation of disease progression or death, whichever occurred first. Participants who did not have disease progression were censored at their last valid tumor assessment. A six-month progression-free survival rate was defined as no disease progression after treated with zanubrutinib for over six months (under control). The 95% confidence interval (CI) lower bound was 33.1 months while the upper bound could not be estimated.

Time to response was defined as the time from treatment initiation to the first documentation of response.

The duration of response was defined as the time from the date that the response criteria are first met to the date that Progressive Disease was objectively documented or death (whichever occurs first). Participants who did not have disease progression were censored at their last valid assessment.

The ORR was assessed in accordance with the 2014 modification of the International Working Group on non-Hodgkin Lymphoma Criteria. The ORR was defined as the percentage of participants achieving a BOR of CR or PR. The BOR was defined as the best response recorded from the start of zanubrutinib until data cut or start of new antineoplastic treatment. Participants with no post-baseline response assessment (due to any reason) were considered non-responders for BOR. For this outcome measure, only investigator-assessed data are analyzed and reported because of the high rate of concordance between the Independent Review Committee and investigator assessments for the primary outcome measure of ORR.

An AE was defined as any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study drug, whether considered related to study drug or not. A summary of serious and all other non-serious AEs, regardless of causality, is located in the Reported Adverse Events module.

A treatment-emergent adverse event (TEAE) is defined as an AE that had an onset date or a worsening in severity from baseline (pretreatment) on or after the date of first dose of study drug up to 30 days following study drug discontinuation (Safety Follow-up visit) or initiation of new anticancer therapy, whichever comes first.

An AE was defined as any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study drug, whether considered related to the study drug or not. A summary of serious and all other non-serious AEs, regardless of causality, is located in the Reported Adverse Events module.