Gulfstream Daily Brief

Regulatory intelligence and policy · Issue 052

FDA opens oncology, RWE, and diagnostic policy actions as MHRA approves retifanlimab

FDA opened three consequential policy actions spanning early oncology trials, real world evidence, and companion diagnostics. In the UK, MHRA approved retifanlimab for advanced anal cancer.

By Scott Morvay, Founder November 12, 2026 Official sources linked

FDA

FDA issues draft guidance for early phase solid tumor trials

The draft provides recommendations for early phase IND protocols involving first in human studies or drugs and biologics with limited human experience. It applies to solid tumors and excludes hematologic malignancies.

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FDA

FDA seeks input on patient level data supporting RWE submissions

The agency requested perspectives and innovative solutions addressing access to patient level data when real world data analyzed in clinical studies are included in drug and biological product marketing applications.

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FDA

FDA proposes reclassifying certain oncology IHC test systems

FDA proposed moving specified immunohistochemistry test systems used with corresponding approved oncology therapies from class III premarket approval to class II special controls, subject to premarket notification.

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MHRA

MHRA approves retifanlimab for advanced anal cancer

MHRA approved retifanlimab (ZYNYZ) for adults with squamous cell carcinoma of the anal canal.

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MHRA

MHRA reports carton strength error for combination tablets

Star Pharmaceuticals informed MHRA that certain enalapril maleate and hydrochlorothiazide cartons incorrectly state the hydrochlorothiazide strength as “12. mg” instead of “12.5 mg.”

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Why this matters

The FDA actions give regulatory teams new material to assess across oncology protocol design, RWE submission practices, and the potential pathway for certain therapy linked diagnostics. The MHRA updates add a new UK oncology approval and a specific packaging defect for market surveillance teams to note.

Scott Morvay

Founder, Gulfstream Intelligence

This brief provides general regulatory news and educational information. It is not legal or regulatory advice.