OnCo
pairingsPairing

PARP inhibitor + AR pathway inhibitor (prostate)

In prostate cancer, blocking androgen signalling makes cells more dependent on PARP, and PARP inhibition weakens AR signalling in turn.

PROpel (olaparib-abiraterone), TALAPRO-2 (talazoparib-enzalutamide, OS benefit), MAGNITUDE (niraparib-abiraterone). Benefit largest in HRR-mutant, present in some all-comer analyses.

Rationale
AR regulates DNA repair genes; PARP is an AR co-factor. Bidirectional cross-talk creates synergy beyond BRCA-mutant tumours.
Evidence
Three phase 3 trials, OS benefit in TALAPRO-2.

Connected

8top