How flexible should the U.S. FDA evidentiary standards be for a therapy addressing a significant unmet need in a disease such as amyotrophic lateral sclerosis (ALS)? That’s the question the agency’s Cellular, Tissue and Gene Therapies Advisory Committee will ponder Sept. 27 as it looks at the data for Brainstorm Cell Therapuetics Inc.’s Nurown (debamestrocel), a mesenchymal stromal cell therapy targeting ALS. Nurown is going into the adcom with a bit of a checkered history that includes a refuse-to-file letter and a single phase III trial that failed to demonstrate efficacy for the primary endpoint and all key secondary efficacy endpoints, according to the FDA briefing document.

By creating a new mouse model of Alzheimer’s disease that better recapitulated how the disease plays out in humans, investigators at KU Leuven have gained new insights into how amyloid plaques, tau tangles and neuronal death are related at the molecular level.

“From one to many” is how Actio Biosciences Inc. describes its approach to drug development. The firm emerged with a $55 million series A financing and an eye for biological targets found in both rare and common diseases, starting with TRPV4, a target associated with Charcot-Marie-Tooth disease type 2C and other bone diseases.

While the U.S. FDA didn’t ask for more study data or have safety or efficacy concerns, it does want modifications to Alexion, Astrazeneca Rare Disease’s sBLA for Ultomiris (ravulizumab-cwvz) to treat adults with the rare central nervous system disease neuromyelitis optica spectrum disorder. The agency has issued a complete response letter (CRL) requesting changes to Ultomiris’ Risk Evaluation and Mitigation Strategy (REMS) to better validate patients’ meningococcal vaccination status or prophylactic administration of antibiotics before being treated.

Otsuka Pharmaceutical Co. Ltd. announced plans to acquire Mindset Pharma Inc. for C$80 million (US$50.76 million) in an all-cash deal that will see Otsuka strengthen its neurology and psychiatric pipeline. Mindset, of Toronto, is developing next-generation psychedelic therapeutics to treat psychiatric and neurological disorders with high unmet needs.

Sage Therapeutics Inc. is reducing its workforce by 40% and pausing its earlier-stage programs, just a few weeks after receiving mixed news of both a U.S. FDA approval and a complete response letter for its depression drug Zurzuvae (zuranolone). The move offers the Cambridge, Mass.-based company an annualized net savings of approximately $240 million, 60% of which is related to R&D, and will extend its runway into 2026.

“I am not a fortune teller, nor am I a gambler. I will make no bets,” Lorraine Kalia told the audience at the 2023 International Congress of Parkinson’s Disease and Movement Disorders. “But I am optimistic.” At the meeting, which is being held in Copenhagen this week, Kalia, who is a scientist at Toronto Western Hospital’s Krembil Brain Institute and at the University of Toronto’s Tanz Centre for Research in Neurodegenerative Diseases, was giving an overview of “Emerging targets in the clinic” in a plenary session on “Therapeutic strategies for the future.”