PRRT – The Sequel?  Alpha-emitter PRRT for Neuroendocrine Tumours (NET)

PRRT – The Sequel? Alpha-emitter PRRT for Neuroendocrine Tumours (NET)

Updated and reviewed June 2026. Alpha‑emitter PRRT is emerging as the next major evolution of peptide receptor radionuclide therapy. Instead of using a beta‑emitting isotope such as 177Lu, these new approaches use alpha‑particle–emitting isotopes like 212Pb or 225Ac. The goal is simple: deliver more powerful DNA‑damaging radiation directly into tumour cells while keeping the impact on surrounding tissues as low as possible. This is still experimental, but the science is compelling — and the early clinical signals are strong enough that alpha‑emitter PRRT is now considered one of the most important areas to watch in NET research. How alpha‑emitter PRRT…
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Clinical Trials – Targeted Alpha-Emitter PRRT RYZ101/RYZ401

Clinical Trials – Targeted Alpha-Emitter PRRT RYZ101/RYZ401

Update – 1 April 2026 RYZ401: New Alpha‑Emitter Trial (PRRT‑Naïve Only) In January 2026, RayzeBio (now part of Bristol Myers Squibb) opened a new first‑in‑human trial for RYZ401, titled “Study of RYZ401 in Subjects With Solid Tumors Expressing SSTRs” (NCT07165132). This Phase 1/2 study aims to: determine the recommended Phase 2 dose (RP2D) define the optimal treatment schedule assess safety and tolerability evaluate early signs of efficacy The trial includes NETs and other SSTR‑expressing solid tumours, including meningioma. Important: RYZ401 excludes anyone who has ever received PRRT (Lu‑177 or Y‑90). This makes it a PRRT‑naïve trial. 1 April 2026: The…
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