OnCo
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BCMA-directed therapy → GPRC5D-directed therapy

When a BCMA drug stops working, switching to a drug against a different myeloma protein still produces responses in about two-thirds of patients.

MonumenTAL-1 prior-T-cell-redirection cohort: ORR ~65%; antigen escape (BCMA loss via TNFRSF17 deletion) does not affect GPRC5D. Combination RedirecTT-1 (tec + tal) shows ~80% ORR including extramedullary disease.

Teclistamab→ thenTalquetamabsequence
Rationale
Independent antigen; different escape mechanisms; T-cell fitness is the shared limitation.
Evidence
Phase 1/2 cohorts; phase 3 combinations ongoing.

Key papers

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Connected

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