Pfizer's Chantix Warning May Remain As FDA Raises Trial Concerns

FDA will present concerns on data collection and study conduct during advisory committee meeting on removing smoking cessation drug's boxed warning.

Pfizer Inc. will have to overcome multiple FDA questions about the conduct of its post-marketing trial assessing neuropsychiatric events related to its smoking cessation drug Chantix if it will be successful in removing the associated black box warning.

Agency reviewers identified problems with data reliability and questioned whether Pfizer payments to investigators were potentially indicative of bias in...

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