Inmune Bio Inc. claimed a phase II win with TNF inhibitor Xpro (pegipanermin) in early Alzheimer’s disease (AD), though the study missed its primary and secondary endpoints, leading shares of the firm (NASDAQ:INMB) to close at $2.16, down $3.18, or almost 60%.

Inmune Bio Inc., together with a collaborator at University of California, Irvine School of Medicine, has shown targeting soluble TNF (sTNF) using a dominant-negative TNF (DN-TNF) biologic significantly decreased muscle damage in a murine mdx model of Duchenne muscular dystrophy (DMD) and showed a statistically significant increase in muscle regeneration.

Amid a mix of controversy and clinical progress, the Alzheimer’s Association International Conference 2021 kicked off July 26 in Denver and online, delivering both new clinical data and insights into a key form of dementia affecting as many as 35 million people worldwide and growing. While interest in Biogen Inc.'s recently approved Aduhelm (aducanumab) remained high, new data on investigational therapies from Synaptogenix Inc. and Inmune Bio Inc. also drew attention, weighing on shares of both companies. New epidemiological research also revealed the first evidence that reducing air pollution may improve cognitive function and reduce dementia risk.

Inmune Bio Inc. CEO Raymond Tesi told BioWorld his firm is taking an “oncology-style” approach to Alzheimer’s disease (AD) as the firm tests next-generation tumor necrosis factor (TNF) inhibitor XPro-1595 against neuroinflammation.