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RADXBullishIndustry Newsnews
High materiality9/10

RADX RAD204 Phase 1 Update Signals Durable Responses at 90 mCi Dose

Jul 22, 2026, 7:07 AM EDT1 sourcesAI-analyzed
Why it may matterVerify against the original reporting

Positive early trial signals and safe tolerability increase confidence in RAD204’s potential and may trigger a valuation re-rating; the data provide a clear path to Phase 2 dose decisions, a key near-term catalyst.

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What happened, with direct paths to the underlying reporting

Radiopharm Theranostics reported preliminary RAD204 Phase 1 data from Cohort 3, showing a durable RECIST Partial Response at 90 mCi and early tumor shrinkage in a second patient. Safety remained favorable with no dose-limiting toxicities and limited kidney uptake, supporting continued dose escalation and informing Phase 2 dosing. These early results could act as a near-term catalyst for RADX as the company advances its PD-L1–targeted radiotherapeutic program.

  • RAD204 shows RECIST Partial Response at 90 mCi dose.
  • Two patients dosed in Cohort 3; progression-free beyond seven months.
  • No dose-limiting toxicities observed; safety profile favorable.
  • Phase 1 data to inform Phase 2 dose; ongoing dose escalation.

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