Efficacy, safety, and pharmacokinetics of teclistamab in Chinese patients with relapsed/refractory multiple myeloma from the China cohort of MajesTEC-1.

Introduction: Teclistamab, the first approved B-cell maturation antigen-directed bispecific antibody for treatment of triple-class exposed relapsed/refractory multiple myeloma, demonstrated deep, durable responses with a manageable safety profile in the pivotal MajesTEC-1 cohort (NCT03145181/NCT04557098). Efficacy, safety, and pharmacokinetics from the MajesTEC-1 China cohort are reported.

Methods: Patients received teclistamab 1.

Correlation of immune fitness with response to teclistamab in relapsed/refractory multiple myeloma in the MajesTEC-1 study.

Teclistamab, an off-the-shelf B-cell maturation antigen (BCMA) × CD3 bispecific antibody that mediates T-cell activation and subsequent lysis of BCMA-expressing myeloma cells, is approved for the treatment of patients with relapsed/refractory multiple myeloma (R/RMM). As a T-cell redirection therapy, clinical outcomes with teclistamab may be influenced by patient immune fitness and tumor antigen expression. We correlated tumor characteristics and baseline immune profiles with clinical response and disease burden in patients with R/RMM from the pivotal phase 1/2 MajesTEC-1 study, focusing on patients treated with 1.

Teclistamab: Mechanism of action, clinical, and translational science.

Multiple myeloma (MM) remains incurable despite improvements in treatment options. B-cell maturation antigen (BCMA) is predominantly expressed in B-lineage cells and represents a promising new target for MM. Teclistamab (TECVAYLI ) is the first T-cell redirecting bispecific antibody approved for patients with MM.