Exsilio Therapeutics emerged from stealth mode on June 25, 2024, with $82 million from a series A financing that was co-led by Novartis Venture Fund and Delos Capital. The company plans to use naturally occurring, mobile genetic elements to integrate therapeutic genes at a defined location in the genome, making it safer than random integration, which can cause tumor formation.

Suzhou, China-headquartered Ascentage Pharma Group Corp. Ltd. has filed plans for a confidential IPO to the U.S. SEC for a potential dual listing on both the U.S. and Hong Kong stock exchanges. News of the U.S. IPO came just a few days after Ascentage drew a $75 million equity investment from Osaka, Japan-headquartered Takeda Pharmaceutical Co. Ltd. with the issuance of about 24.3 million shares at a purchase price of HK$24.09 (US$3.08) per share.

Newco Yellowstone Biosciences Ltd. has been formed to develop soluble bispecific T-cell receptors against a novel class of tumor-specific antigens it has discovered in leukemia patients who were cured by a donor stem cell transplant. The company has proprietary access to a biobank of over 10,000 samples from more than 3,000 acute myeloid leukemia (AML) patients. A small number of these patients were cured by an allogeneic bone marrow transplant, whilst unusually, having no sign of graft-vs.-host disease.

Alzheon Inc. has raised $100 million in a series E financing round to push its oral drug candidate for early Alzheimer’s disease (AD), ALZ-801 (valiltramiprosate), through a late-stage, Apolloe4 study.

Ionctura SA closed a €80 million (US$86 million) series B round as it prepares to accelerate development of lead asset roginolisib in the treatment of uveal melanoma. That follows publication of phase Ib data showing roginolisib, an orally available allosteric modulator of the delta isoform of PI3K (phosphatidylinositol-4,5-bisphosphate kinase), is distinguished from other drugs in this class, in being well-tolerated over long periods, with patients having been treated for up to 38 months.