Ascidian Therapeutics Inc. secured $50 million in series A funding from its founder Apple Tree Partners to take a therapy based on its RNA exon editing technology into a first-in-human trial in ABCA4 retinopathy and to advance additional programs in neuromuscular, neurological, and rare disease indications.

Researchers at the University of Cincinnati have published data showing that in patients with dominantly inherited Alzheimer’s disease-causing mutations, high levels of soluble amyloid-β42 (Aβ42) in the cerebrospinal fluid predicted a reduced risk of developing dementia over three years.

A new analysis of Actinogen Medical Ltd.’s phase II Xanadu trial showed that in biomarker-positive patients with mild Alzheimer’s disease there was a clear clinical effect with lead compound Xanamem not seen in the earlier trial.

Despite clinical responses undermining expectations for the placebo arm of its phase III Alzheimer's disease (AD) study, Lucidity, Taurx Pharmaceuticals Ltd. executives Oct. 6 said they still see the data as supporting their ability to pursue regulatory submissions for hydromethylthionine mesylate (HMTM), an oral tau aggregation inhibitor. For people with mild cognitive impairment especially, they said, "HMTM treatment resulted in sustained improvement in cognition over pretreatment baseline, and normalization of brain atrophy to a rate similar to healthy individuals."

Cerecin Inc. has successfully closed the first tranche of a series IIB financing with investors from South Korea, with SK Securities Co. Ltd. and KNT Investment LLC leading the round. Proceeds from the financing, of undisclosed value, will help the company advance clinical studies of its CER-0001 (tricaprilin) in migraine and infantile spasm.

Analysts were upbeat about positive results from Eisai Co Ltd. and Biogen Inc.’s phase III confirmatory Clarity Alzheimer’s disease (AD) trial of lecanemab that met both primary and secondary endpoints, and most agreed that the data should be enough to gain FDA approval for mild cognitive impairment due to AD.

Bluebird Bio Inc.’s elivaldogene autotemcel (eli-cel) gained U.S. approval late Sept. 16 for use in early active cerebral adrenoleukodystrophy (CALD), making it the firm’s second gene therapy to clear the FDA in as many months. Branded Skysona, eli-cel is expected to be available commercially by the end of 2022 and its launch will require only “incremental” company resources on top of those required for the ongoing launch of beta-thalassemia gene therapy Zynteglo (betibeglogene autotemcel), Bluebird said.

Sex differences at the cellular level could explain why men respond less well to glioblastoma (GBM) treatments, according to a study led by the Washington University School of Medicine in St. Louis (WUSTL). The researchers found that male and female GBM tumor cells had different metabolic needs. GBM cells from male surgical samples absorbed more glutamine and had different nutritional preferences for amino acids.