OnCo
trialsTrialRecruiting

AlphaBreak (FPI-2265) & AcTION (225Ac-PSMA-617)

The phase 3 trials that will decide whether alpha-emitting PSMA drugs become the next step after Pluvicto.

AlphaBreak (FPI-2265, 225Ac-PSMA-I&T, AstraZeneca/Fusion) and Novartis' AcTION programme of 225Ac-PSMA-617 in post-Lu and Lu-naive settings; Bayer's PAnTHA phase 1 of 225Ac-PSMA-Trillium reported at ASCO GU 2026. Xerostomia and Ac-225 supply are the constraints.

Setting
PSMA-positive mCRPC: actinium-225 PSMA radioligands vs standard of care, including after 177Lu-PSMA
Phase
Phase 3
Sponsor
AstraZeneca (Fusion); Novartis
Registry
Enrolled
600
Replication
Ongoing phase 3 of 225Ac-PSMA-I&T after 177Lu-PSMA; no results.

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