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Actinium Pharmaceuticals Unveils ATNM‑400 Data at EANM 2026 with a First‑In‑Human HER3‑Targeted Radiotherapy Approach Beyond PSMA in Prostate Cancer

HER3‑targeted PET imaging demonstrated tumor uptake and retention, supporting ATNM‑400's potential to deliver sustained alpha radiation to tumors over a timeframe consistent with Actinium‑225's 10-day