Gulfstream Daily Brief

Regulatory intelligence and policy · Issue 015

FDA updates nonclinical terminology as EMA adopts ICH M13B

Today’s regulatory updates focus on nonclinical testing language, bioequivalence standards, and regulatory input on artificial intelligence in medicines development.

By Scott Morvay, Founder September 22, 2026 Official sources linked

FDA

FDA issues final rule updating nonclinical testing terminology

FDA substituted certain references to animal, preclinical, and in vitro tests or studies with consistent nonclinical terminology. The rule adds definitions and conforming amendments, aligns regulations with statutory changes, and adds no new requirements.

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FDA

FDA proposes corresponding nonclinical terminology amendments

FDA proposed terminology and definitional changes intended to remove emphasis on animal testing as the only scientific methodology for nonclinical safety assessment. The proposal would add no new requirements.

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EMA

EMA adopts ICH M13B at Step 5

EMA lists the ICH M13B guideline on additional strengths biowaivers for immediate-release solid oral dosage forms as adopted.

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MHRA

MHRA seeks views on AI in medicines development

MHRA and the Regulatory Innovation Office opened a survey inviting organisations to share views on using artificial intelligence in medicines development.

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MHRA

UK launches regulatory science funding opportunity

Four planned centres of excellence will bring together academia, industry, healthcare, and regulatory expertise to support regulatory science and healthcare innovation.

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Why this matters

Regulatory teams should note the shift toward broader nonclinical terminology in FDA regulations and EMA’s adoption of a harmonised biowaiver guideline. The MHRA survey also provides a direct opportunity for organisations to inform discussion about AI in medicines development.

Scott Morvay

Founder, Gulfstream Intelligence

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