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Cempra’s Antibiotic Likely Needs Bigger Trial – But Might Be Able To Do It In Phase IV

 
• By Michael Cipriano

FDA advisory committee votes 7-6 that the strong efficacy profile of Solithera (solithromycin) outweighs its unknown safety risks; panels agreed that more data was needed, but were split on whether it was needed pre- or post-approval.

Cempra Inc.'s community acquired bacterial pneumonia (CABP) antibiotic Solithera (solithromycin) barely squeaked passed an FDA advisory panel, but the drug will likely be forced to conduct another clinical trial of the drug regardless of the approval outcome.

The Antimicrobial Drugs Advisory Committee voted 7-6 that the efficacy results of Solithera outweigh its risks, including hepatotoxicity. Panelists previously...

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More from US FDA Performance Tracker

Slowdown: US FDA’s 2025 Novel Approvals Are On Below-Average Pace

 
• By Bridget Silverman

US FDA's 25 novel approvals in 2025 fell short of the agency's five-year average count, driven by a drop in drugs center approvals; 45 user fee goals remain in second half of year.

US FDA’s CRL Release More Incremental Than ‘Radical’ Transparency

 
• By Bridget Silverman

The transparency initiative collects CRLs already made public in approval packages on its drugs@fda site to post on the openFDA public portal.

America Next: Most Novel Agents With July Goal Dates Have Been Approved Overseas

 
• By Bridget Silverman

The US FDA will not be in its usual position as the first regulator to approve novel drugs, with only one of the six novel candidates on the July user fee calendar seeking its first approval worldwide in the US

US FDA’s June Approval Forecast: Infection Prevention, Cancer And HAE

 
• By Bridget Silverman

Upcoming FDA user fee goal dates include novel products from a busy lung cancer pipeline, a single-dose passive immunization against RSV for infants, what could be the first oral HAE acute treatment, and a first-in-class HAE preventive antibody.

More from Regulatory Trackers

EU CHMP Opinions And MAA Updates

 
• By Neena Brizmohun

This is an update of recommendations from the European Medicines Agency's Committee for Medicinal Products for Human Use on the authorization of new medicines in the EU, and updates on EU marketing authorization changes recommended by the CHMP.

Global Pharma Guidance Tracker - May 2025

 
• By Vibha Sharma and Anabel Costa-Ferreira

Stay up to date on regulatory guidelines from around the world with the Pink Sheet’s Guidance Tracker. The complete Global Pharma Guidance Tracker, with sortable and searchable listings going back to 2014, is available online.

US FDA’s June Approval Forecast: Infection Prevention, Cancer And HAE

 
• By Bridget Silverman

Upcoming FDA user fee goal dates include novel products from a busy lung cancer pipeline, a single-dose passive immunization against RSV for infants, what could be the first oral HAE acute treatment, and a first-in-class HAE preventive antibody.