In the ultra-rare disease congenital hyperinsulinism, an overproduction of insulin leads to persistent hypoglycemia and can cause neurological complications due to high glucose needs of the brain. About half of children go on to develop seizures or intellectual problems, but current therapeutic options are limited and there are no approved drugs specifically for the condition.

Aboleris Pharma has closed a €27.3 million (US$28.7 million) series A financing, funds it plans to put toward progressing into the clinic a monoclonal antibody against a novel T-cell target with “first-in-class potential” to treat rheumatoid arthritis. The Gosselies, Belgium-based company’s antibody, ABO-21009, is designed to “rebalance” the immune system by inhibiting CD45RC, a protein expressed on the surface of a subset of disease-causing T cells.

Arialys Therapeutics Inc. launched this month with $58 million in seed funding, an experimental compound it is developing for autoimmune encephalitis and autoimmune psychosis, and high aspirations for its field. “Yes, I want to treat these patients, I want these patients to have a better life. But I also want drug discovery and development folks to think differently about discovering new drugs for the CNS,” Jay Lichter told BioWorld.

The rapid migration of gene editing technologies from the bench to the clinic has opened up new therapeutic possibilities for patients with previously intractable genetic diseases and difficult-to-treat cancers. But mobilizing gene editing components into a target cell or organ remains a critical step for the field. Integra Therapeutics SL, an early stage Spanish firm, is now engaged in that process with a novel gene writing platform.

Although preclinical studies of genetically engineered interleukin-18 (IL-18) historically indicated its potential in cancer treatment, interest in the cytokine languished after GSK plc shelved its IL-18 therapeutic on lack of responses in a phase II melanoma trial. But in 2020, Yale University-based professor of immunobiology Aaron Ring set about reviving IL-18 as a cancer therapeutic. He went on to engineer a decoy-resistant form of IL-18 and then founded Simcha Therapeutics Inc. to develop the drug – named ST-067.

Galimedix Therapeutics Inc. plans to move its lead compound, GAL-101, into a phase IIa proof-of-concept trial next year, in order to test an intriguing hypothesis associated with certain retinal degeneration conditions. GAL-101 selectively binds misfolded amyloid beta species, and the company believes that this mechanism may benefit patients with the dry form of age-related macular degeneration or with glaucoma.

“From one to many” is how Actio Biosciences Inc. describes its approach to drug development. The firm emerged with a $55 million series A financing and an eye for biological targets found in both rare and common diseases, starting with TRPV4, a target associated with Charcot-Marie-Tooth disease type 2C and other bone diseases.

Messenger RNA, or mRNA, represents a relatively new class of therapeutics with the potential to prevent and treat a wide range of diseases. A well-known success story is of the mRNA vaccines that controlled the COVID-19 pandemic, which has fueled enthusiasm for the field. But biotechs are also developing mRNA candidates for several other infectious diseases, including malaria, tuberculosis and HIV, as well for cancer, autoimmune and allergic diseases. However, delivering nucleic acid therapeutics can be challenging, since mRNA cannot get into cells on its own. “Nucleic acid therapeutics can be incredibly fragile,” Thomas Madden, CEO of Acuitas Therapeutics, told BioWorld. “When injected into the body without a delivery system, messenger RNA, for example, is rapidly destroyed.”

As its name suggests, Superluminal Medicines Inc. is aiming for speed. The startup, which closed a $33 million seed round led by RA Capital Management, is combining a biology-focused approach with a generative AI platform it says has the potential to create candidate-ready compounds in a matter of months, with its initial sights set on G protein-coupled receptor targets.

As a cytokine used in the field of immuno-oncology, interleukin-2 (IL-2) can produce durable and even complete responses in some patients, as well as induce immune memory against tumors. However, its rapid metabolism within the body means it has a short serum half-life, so it needs to be given in high doses, which can trigger severe side effects.