FibroGen $FGEN backtracked on some of the key safety data used to boost hopes for their anemia drug roxadustat, eliminating its claim of superiority over ESAs for a large segment of the patient population. And investors quickly crushed its shares in retaliation for the surprise discrepancies.

According to CEO Enrique Conterno, FibroGen execs became “aware” that their analysis included post hoc changes to stratification factors used to assess the hazard ratio of their drug — essentially manipulating the data to enhance how much the therapy reduced key risks for patients and sharing that false profile with investors and regulators. Using pre-specified stratification factors raised the risk on key safety endpoints, which revolved primarily around MACE, a composite endpoint of all-cause mortality, stroke, and myocardial infarction.

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A panel of outside advisors to the FDA unanimously recommended that the agency grant accelerated approval to Biogen’s ALS drug tofersen despite the drug failing the primary goal of its Phase III study, an endorsement that could pave a path forward for the treatment.

By a 9-0 vote, members of the Peripheral and Central Nervous System Drugs Advisory Committee said there was sufficient evidence that tofersen’s effect on a certain protein associated with ALS is reasonably likely to predict a benefit for patients. But panelists stopped short of advocating for a full approval, voting 3-5 against (with one abstention) and largely citing the failed pivotal study.

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The FDA rejected AbbVie’s 24-hour infusion therapy for Parkinson’s, saying it needs more information on a device used to administer the treatment before it can clear it.

The Chicago-area drugmaker said in a press release that the complete response letter from the agency didn’t include any requests for more efficacy or safety trials related to the drug, known as ABBV-951. The company said it aims to “resubmit the NDA as soon as possible.”

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Ahead of Wednesday’s advisory committee hearing to discuss Biogen’s ALS drug tofersen, the FDA appeared open to approving the drug, newly released briefing documents show.

Citing the need for flexibility in a devastating disease like ALS, regulators signaled a willingness to consider greenlighting tofersen based on its effect on a certain protein associated with ALS despite a failed pivotal trial. The documents come after regulatory flexibility was part of the same rationale the agency expressed when approving an ALS drug last September from Amylyx Pharmaceuticals, indicating the FDA’s openness to approving new treatments for the disease.

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What do you get when you combine ChatGPT generative AI technology with specific pharma and clinical datasets? A time-saving tool that can answer questions about medical conference abstracts and clinical findings in seconds in one new application from ZoomRx called FermaGPT.

ZoomRx is debuting a public version of its generative AI product specifically for medical conferences beginning this week for the upcoming American Association for Cancer Research (AACR) annual meeting that runs April 14-19.

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