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Harvoni Approval Led To Narrowing Of Epclusa's Breakthrough Status

 
• By Sue Sutter

US FDA cited strong efficacy, good safety of Gilead's Harvoni and AbbVie's Viekira Pak in rescinding breakthrough therapy designation for the sofosbuvir/velpatasvir fixed-dose combination in hepatitis C patients with genotype 1 infection.

Gilead Sciences Inc.'s breakthrough therapy designation experience with its hepatitis C treatment Epclusa (sofosbuvir/velpatasvir) reflects the fluidity of the expedited program in a fast-moving therapeutic area.

The original breakthrough designation granted to Epclusa was subsequently narrowed by FDA due to the availability of other safe and...

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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.

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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.

Otsuka/Lundbeck’s Rexulti PTSD Claim Will Test US FDA AdComm’s Supportive Evidence Flexibility

 
• By Bridget Silverman

Rexulti’s post-traumatic stress disorder sNDA tries to make up for a failed Phase III study by placing a Phase II study into a key evidentiary role, raising questions for the July 18 advisory committee meeting about assessing discordant results and post-hoc analyses.

US Return Of GSK’s Blenrep Threatened By Ocular Toxicity, Dosage Optimization Questions

 
• By Sue Sutter

The FDA's Oncologic Drugs Advisory Committee will consider whether appropriate dosages of belantamab mafodotin have been identified for two second-line, multiple myeloma indications. Ocular toxicities and large number of dose modifications in trials raised FDA concerns about benefit-risk.