FDA Calls for Data on ALS Drug

In the midst of a debate about an experimental drug’s early approval, the US Food and Drug Administration requests that full trial results be released.

Written byJef Akst
| 2 min read

Register for free to listen to this article
Listen with Speechify
0:00
2:00
Share

FLICKR, SLGCKGCFollowing the completion of a 12-person, Phase 2 trial testing its drug candidate, GM604, for the treatment of amyotrophic lateral sclerosis (ALS), California-based biotech Genervon announced “very robust” and “dramatic” results and applied to the US Food and Drug Administration (FDA) for accelerated approval. If granted, the status would allow the company to skip Phase 3 trials for the drug, following up with additional studies after it hit the market. ALS patients have petitioned for the approval of GM604; researchers have demanded caution.

The FDA has remained tight-lipped on the issue, as by law it cannot discuss ongoing drug evaluations. Instead, the agency last week (April 16) called on the company to publicly release the all data from the Phase 2 study, rather than a mere summary of the results, upon which advocates and skeptics have so far based their arguments.

“We call upon Genervon to release all the data from their recently completed trial in order to allow a more informed discussion of the trial findings among ALS stakeholders,” the FDA wrote. “Such a release should include the pre-specified clinical outcome measures as assessed by change from baseline observations that were taken just prior to randomization to drug or placebo. Such data provide the strongest basis to ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member? Login Here

Related Topics

Meet the Author

  • Jef (an unusual nickname for Jennifer) got her master’s degree from Indiana University in April 2009 studying the mating behavior of seahorses. After four years of diving off the Gulf Coast of Tampa and performing behavioral experiments at the Tennessee Aquarium in Chattanooga, she left research to pursue a career in science writing. As The Scientist's managing editor, Jef edited features and oversaw the production of the TS Digest and quarterly print magazine. In 2022, her feature on uterus transplantation earned first place in the trade category of the Awards for Excellence in Health Care Journalism. She is a member of the National Association of Science Writers.

    View Full Profile
Share
Image of a woman with her hands across her stomach. She has a look of discomfort on her face. There is a blown up image of her stomach next to her and it has colorful butterflies and gut bacteria all swarming within the gut.
November 2025, Issue 1

Why Do We Feel Butterflies in the Stomach?

These fluttering sensations are the brain’s reaction to certain emotions, which can be amplified or soothed by the gut’s own “bugs".

View this Issue
Olga Anczukow and Ryan Englander discuss how transcriptome splicing affects immune system function in lung cancer.

Long-Read RNA Sequencing Reveals a Regulatory Role for Splicing in Immunotherapy Responses

Pacific Biosciences logo
Research Roundtable: The Evolving World of Spatial Biology

Research Roundtable: The Evolving World of Spatial Biology

Conceptual cartoon image of gene editing technology

Exploring the State of the Art in Gene Editing Techniques

Bio-Rad
Conceptual image of a doctor holding a brain puzzle, representing Alzheimer's disease diagnosis.

Simplifying Early Alzheimer’s Disease Diagnosis with Blood Testing

fujirebio logo

Products

Eppendorf Logo

Research on rewiring neural circuit in fruit flies wins 2025 Eppendorf & Science Prize

Evident Logo

EVIDENT's New FLUOVIEW FV5000 Redefines the Boundaries of Confocal and Multiphoton Imaging

Evident Logo

EVIDENT Launches Sixth Annual Image of the Year Contest

10x Genomics Logo

10x Genomics Launches the Next Generation of Chromium Flex to Empower Scientists to Massively Scale Single Cell Research