The BioWorld Neurological Diseases Index continued its downward slide into 2025, with 15 of the 20 component stocks posting losses. After dipping into negative territory in late February, the index dropped 15.99% by the end of March and closed May down 22.34%.

Newco Elkedonia SAS has raised €11 million (US$12.7 million) in a seed round, which will fund it to take a potentially first-in-class ELK-1 inhibitor into the clinic in the treatment of refractory depression. ELK-1 plays a pivotal role in neuroplasticity and in reward circuits in the brain, which when disrupted can lead to depression, addiction and post-traumatic stress disorder.

Newco Elkedonia SAS has raised €11 million (US$12.7 million) in a seed round, which will fund it to take a potentially first-in-class ELK-1 inhibitor into the clinic in the treatment of refractory depression. ELK-1 plays a pivotal role in neuroplasticity and in reward circuits in the brain, which when disrupted can lead to depression, addiction and post-traumatic stress disorder.

Capsida Biotherapeutics Inc. has obtained IND clearance from the FDA for CAP-003, an intravenously administered gene therapy, for Parkinson’s disease associated with GBA mutations (PD-GBA). A phase I/II trial will begin dosing in the third quarter of this year.

4M Therapeutics Inc. has released promising results from completed GLP safety studies for its lead asset, 4MT-2001, supporting its potential to offer a safer treatment option to patients who are underserved by lithium and atypical antipsychotics.

Mosanna Therapeutics secured $80 million in a series A round to develop MOS-118 as a treatment for the nearly 1 billion people globally with obstructive sleep apnea (OSA). The company has completed the formulation work to make the drug into a nasal spray and the initial proof-of-concept animal studies and is now ready to enter clinical trials in patients with OSA.