1. Pink Sheet
  2. >>Regulatory Trackers
  3. >>US FDA Performance Tracker

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...

Read the full article – start your free trial today!

Join thousands of industry professionals who rely on Pink Sheet for daily insights

  • Start your 7-day free trial
  • Explore trusted news, analysis, and insights
  • Access comprehensive global coverage
  • Enjoy instant access – no credit card required
Start Free Trial

Already a subscriber?

More from US FDA Performance Tracker

August Brings Fresh Faces And Tough Calls To US FDA User Fee Calendar

 
• By Bridget Silverman

The FDA could act on 17 applications, including 10 novel agents, during August. Only one would be a second-cycle review.

Complete Response Letter Trio Raises Prospect Of Tidal Shift In Regenerative Medicine Regulation

 
• By Bridget Silverman

Replimune's RP1 oncolytic immunotherapy became the third regenerative medicine to receive an FDA complete response letter this month as the agency appears to re-visit previous agreements about accelerated approval.

US FDA’s Second Half 2025 User Fee Goals Swing Toward Respiratory Disease

 
• By Bridget Silverman

The 43 novel agents with user fee goal dates in the remainder of 2025 have fewer oncologics and infectious disease drugs than the first half of the year.

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.

More from Regulatory Trackers

US FDA’s Second Half 2025 User Fee Goals Swing Toward Respiratory Disease

 
• By Bridget Silverman

The 43 novel agents with user fee goal dates in the remainder of 2025 have fewer oncologics and infectious disease drugs than the first half of the year.

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.

Global Pharma Guidance Tracker - June 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.