RecruitingPhase 1Drug trialA Study Evaluating the Pharmacokinetics, Safety, and Efficacy of Cevostamab in Chinese Participants With Relapsed or Refractory Multiple MyelomaThis study will evaluate the pharmacokinetics (PK), safety, and efficacy of cevostamab in participants with relapsed or refractory (R/R) multiple myeloma (MM).