Korro Bio Inc.’s latest update on RNA editing prospect KRRO-110 may mean one less competitor in alpha-1 antitrypsin deficiency (AATD), and shares of the firm (NASDAQ:KRRO) closed Nov. 13 at $6.50, down $24.92, or 79%. As part of the third-quarter earnings report, Korro said KRRO-110 produced functional protein in AATD patients but fell short of projected levels of functional protein after a single administration.

As it prepares to advance its lead RNA editing candidate, AIR-001, into a phase I/II trial for alpha-1 antitrypsin deficiency, Airna Corp. Inc. closed an oversubscribed $155 million series B financing less than a year after completing its series A round. The company, based in Cambridge, Mass., with research operations in Tübingen, Germany, focuses not only on repairing harmful genetic variants found in rare genetic disorders, but also on introducing beneficial variants that improve health in common conditions.

As it prepares to advance its lead RNA editing candidate, AIR-001, into a phase I/II trial for alpha-1 antitrypsin deficiency, Airna Corp. Inc. closed an oversubscribed $155 million series B financing less than a year after completing its series A round. The company, based in Cambridge, Mass., with research operations in Tübingen, Germany, focuses not only on repairing harmful genetic variants found in rare genetic disorders, but also on introducing beneficial variants that improve health in common conditions.

Prime Medicine Inc. has announced its new preclinical program for the treatment of α1-antitrypsin deficiency (AATD). The program is advancing through its final stages of lead optimization, with an IND and/or clinical trial application (CTA) filing anticipated around the middle of next year.

Korro Bio Inc. has announced a submission to the Australian Bellberry Human Research Ethics Committee (HREC) for a phase I/II study of KRRO-110 for α-1 antitrypsin deficiency (AATD).

Airna Corp. Inc., of Cambridge, Mass., announced it has closed an oversubscribed $60 million financing round, bringing its total series A funding to $90 million.

α1-Antitrypsin deficiency is a hereditary disorder that affects the liver in children and adults, as well as the lungs in adults. The disease is mostly caused by the Z allele mutation in the SERPINA1 gene, where a glutamic acid amino acid is substituted by lysine (E342K) leading to protein misfolding and aggregation.

Circio Holding ASA has established technical in vivo proof of concept for its proprietary Circvec circular RNA platform by demonstrating statistically significant improvement in durability over mRNA-based expression.

Beam Therapeutics Inc. has received clearance of its clinical trial authorization (CTA) application by the U.K.’s Medicines and Healthcare Products Regulatory Agency for BEAM-302, an in vivo base editor, as a potential treatment for patients with α1-antitrypsin deficiency (AATD).