Final Guidance On Non-Inferiority Studies Lacks Industry-Sought Changes

One of industry's central concerns about the US FDA’s 2010 draft guidance was a "vaguely" and "subjectively" defined M2 clinical margin, but FDA did not provide a new definition in the finalized version.

Despite industry's concerns about a "vaguely" defined M2 clinical margin in a 2010 draft guidance on non-inferiority, FDA has stood pat in its wording.

Several major industry players, including the Pharmaceutical Research and Manufacturers of America, AstraZeneca PLCand Pfizer Inc. commented that...

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