Spotlight On High Doses Again After Pfizer Duchenne Gene Therapy Death

US Regulator May Call For Limits

The death in Pfizer’s Phase I study could reflect wider safety issues for AAV-based gene therapy and could spur intervention from regulators in 2022.

Pfizer new logo
Earlier safety issues have already delayed Pfizer's Phase III study, which is now expected to read out in early 2023. • Source: Alamy

A trial of Pfizer’s investigational gene therapy for Duchenne muscular dystrophy (DMD) has been halted after the death of a young male.

The company announced on 20 December that it had paused screening and dosing in the Phase I study and it will now work with the trial site investigator to understand the cause of death, and if it was linked to the administration of

More from Business

Quick Listen: Scrip’s Five Must-Know Things

 
• By 

In this week's episode: AstraZeneca CEO cautions Europe; Pfizer CEO optimistic on US tariffs, pricing; Merck & Co reassures on pipeline; Merck KGaA buys SpringWorks; and Akeso explains ivonescimab overall survival data.

Vertex Sinks On Below-Consensus Revenue, Limited Sales From New Launches

 
• By 

Vertex is in need of diversification, but in addition to its lower-than-expected Q1 revenue, sales of the company’s newest CF drug Alyftrek and pain medicine Journavx disappointed.

Aldeyra Plans To File Reproxalap Again With New Dry Eye Symptom Data

 
• By 

The biotech hopes a third time will be the charm after two FDA complete responses, with plans to position its eye drop as offering quicker onset of action.

Lilly And Alchemab Tap Into Resilient Individuals To Develop ALS Drug

 

The pharma company is helping to validate the biotech’s model by developing a novel amyotrophic lateral sclerosis candidate, based on its novel approach that ‘turns drug discovery on its head’.

More from Scrip

Vertex Sinks On Below-Consensus Revenue, Limited Sales From New Launches

 
• By 

Vertex is in need of diversification, but in addition to its lower-than-expected Q1 revenue, sales of the company’s newest CF drug Alyftrek and pain medicine Journavx disappointed.

Aldeyra Plans To File Reproxalap Again With New Dry Eye Symptom Data

 
• By 

The biotech hopes a third time will be the charm after two FDA complete responses, with plans to position its eye drop as offering quicker onset of action.

Atara Does An About Face As FDA Lifts Ebvallo Hold

 

The biotech said it will have a type A meeting with the agency to resubmit for the cell therapy’s approval in EBV+ PTLD.