1. Pink Sheet
  2. >>Product Reviews
  3. >>Drug Review Profiles

Leqembi Clinical Development: Aduhelm Opened The Door For Accelerated Approval

 
• By Sue Sutter

Timeline of lecanemab’s clinical development shows how, almost three years after telling Eisai and Biogen that their Phase II results did not support regular or accelerated approval, the FDA review division reversed course following its decision to approve aducanumab on a surrogate endpoint.

Drug Review Profile: Leqembi Chronology
FDA reversed course on Leqembi's approvability after giving Aduhelm the nod. • Source: Pink Sheet/Shutterstock/Alamy

The accelerated approval Biogen, Inc. and Eisai Co., Ltd.’s amyloid-targeting antibody Aduhelm (aducanumab-avwa) for Alzheimer’s disease was a seminal moment in the development of the companies’ Leqembi (lecanemab-irmb) for the same population.

In comments prior to and during an October 2018 meeting, the US Food and Drug Administration’s Division of Neurology Products...

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 Drug Review Profiles

Potency Assay Issues Delayed US FDA Approval Of Mesoblast’s Ryoncil For Years

 
• By Sue Sutter

The company’s failure to show its potency assays measured attributes directly related to the mesenchymal stromal cell product’s therapeutic effect highlights the importance of a robust CMC program for complex cell therapies.

Mesoblast’s Ryoncil: US FDA Changed Its Mind On Need For A Randomized Trial

 
• By Sue Sutter

Agency staff repeatedly said the BLA based on a single-arm study in 55 patients lacked substantial evidence of effectiveness in steroid-refractory acute graft-versus-host disease and a randomized trial was needed, but changed course “based on additional consideration” after a second CRL.

Ryoncil Chronology: Three Review Cycles, Two CRLs, One Dispute Resolution Request

 
• By Sue Sutter

The Pink Sheet’s Drug Review Profile looks at the timeline for the clinical development and US FDA review of Mesoblast’s remestemcel for graft-versus-host disease.

Testosterone, TRAVERSE, And A Label Change 15 Years In The Making

 
• By Bridget Silverman

The Pink Sheet drug review profile investigates the long and rigorous process behind the FDA’s recent relaxation of the cardiovascular safety warning for testosterone products.

More from Product Reviews

What Information Does US FDA Need For Stealth’s Elamipretide After CRL?

 
• By Sue Sutter

The agency said it will consider knee extensor muscle strength as a potential intermediate clinical endpoint to support accelerated approval, but Stealth CEO Reenie McCarthy said announcing it via complete response letter is confusing and inefficient.

EMA Touts Faster Global Post-Approval Changes Via Regulatory Reliance

 
• By Eliza Slawther

The European Medicines Agency says that a regulatory reliance pilot that it is supporting to speed up assessments of post-approval changes appears to be accelerating evaluation timelines in non-EU countries.

New EU Approvals

 
• By Neena Brizmohun

The Pink Sheet's list of EU centralized approvals of new active substances has been updated to include two new products, one of which is Vyjuvek, Krystal Biotech's advanced therapy for treating dystrophic epidermolysis bullosa.