1. Pink Sheet
  2. >>Archive

Same Trial, Different Endpoints: FDA Guided Idhifa To Full Approval By Recasting Clinical Analyses

US FDA conducted extensive re-analyses of Celgene's AML therapy Idhifa, resulting in full approval based on complete remission findings instead of the accelerated approval based on overall response rate sought by the NDA. 

In an unusual turn of events, The US FDA's disagreement with the primary endpoint used in the pivotal (and only) clinical study supporting Celgene Corp.'s NDA for the acute myeloid leukemia (AML) therapy Idhifa resulted in a better approval outcome than the company had anticipated.

Review documents for Idhifa (enasidenib) describe how an NDA seeking accelerated approval based on overall response rate (ORR) became a...

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 Archive

Ocaliva: Still No Clarity On Why EU Court Opposed Revocation Of Approval

 
• By Neena Brizmohun

Advanz Pharma would have had to show that the European Commission’s decision to revoke Ocaliva’s conditional marketing approval risked causing serious and irreparable harm, according to lawyers from Van Bael & Bellis.

Final Chance To Have Your Say: Take Our Reader Survey This Week

 
• By Nielsen Hobbs

This is your final call to participate in the survey to better understand our subscribers’ content and delivery needs. The deadline is 20 September.

Shape Our Content: Take The Reader Survey

 
• By Nielsen Hobbs

We are conducting a survey to better understand our subscribers’ content and delivery needs. If there are any changes you’d like to see in coverage topics, article format, or the method in which you access the Pink Sheet – or if you love it how it is – now is the time to have your voice heard.

Brazil Pilots Digital Drug Pack Inserts

 
• By Francesca Bruce

A new pilot aims to take Brazil closer to ‘digital transformation.’

More from Pink Sheet

EMA’s PRIME Scheme Explored: Growing Designations - But Are Accelerated Assessments Slipping?

 
• By Neena Brizmohun

While the first six months of the year saw eight new drugs targeting a range of diseases enter the European Medicines Agency’s priority medicines scheme, and three PRIME-designated treatments go on to win EU marketing approval, use of the accelerated assessment mechanism appears to be limited.

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.

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.