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.

Fledgling biotech Ternarx Pty Ltd. has emerged from stealth mode and is the first of its kind in Australia to develop targeted protein degrader technology to destroy disease-causing proteins that cannot be targeted by conventional drugs. The Melbourne-based company will initially develop targeted protein degraders against currently undrugged transcription factors in cancers with significant unmet need, starting with neuroblastoma and prostate cancer.

Marea Therapeutics came out of stealth mode on June 18, after raising a combined $190 million through its series A and B financings. The series A round was led by Third Rock Ventures, and the series B round was led by Sofinnova Investments and co-led by Forbion, Perceptive Xontogeny Venture Fund and Venbio.