Study of BGB-A317 in Participants With Relapsed or Refractory Mature T- and NK-cell Neoplasms

This was a multi-center, prospective, non-randomized, open-label, Phase 2 clinical study to evaluate the safety and efficacy of BGB-A317 in participants with relapsed or refractory mature T- and natural killer (NK)-cell neoplasms. There were three cohorts: * Cohort 1: Relapsed or refractory (R/R) extranodal NK/T cell lymphoma (ENKTL; nasal or non-nasal type) * Cohort 2: Other R/R mature T-cell neoplasms, limited to the following histologies: peripheral T-cell lymphoma-not otherwise specified (PTCL-NOS), angioimmunoblastic T-cell lymphoma (AITL), or anaplastic large-cell lymphoma (ALCL) * Cohort 3: R/R cutaneous T-cell lymphoma, limited to mycosis fungoides (MF) or Sèzary syndrome (SS) Study procedures included a Screening phase (up to 35 days); Treatment phase (until disease progression, intolerable toxicity, or withdrawal of informed consent, whichever occurs first); Safety Follow-up phase (up to 90 days following last study treatment for all adverse events (AEs) and serious adverse events (SAEs)); and Survival follow-up phase (duration varying by participant).