Medical research

Increased flexibility seen in preapproval evidence for new drugs

The characteristics of acceptable preapproval evidence were more flexible for novel drugs approved by the U.S. Food and Drug Administration in 2020, according to a research letter published online May 17 in JAMA Network Open.

Medications

Use of extrapolation common in FDA new drug approvals

Extrapolation from pivotal trial data to broader U.S. Food and Drug Administration (FDA)-approved indications is common, according to a study published online April 19 in JAMA Network Open.

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