Alentis Therapeutics is a Swiss clinical-stage biotech built around a single, unusual biological target: Claudin-1 (CLDN1), a tight-junction protein that becomes exposed in both fibrotic tissue and solid tumors. Founded in 2019 on the discovery of physician-scientist Professor Thomas Baumert, the company develops first-in-class monoclonal antibodies and antibody-drug conjugates that bind exposed CLDN1 to reverse organ fibrosis and treat CLDN1-positive cancers. Headquartered in Allschwil near Basel with R&D roots in Strasbourg, Alentis has raised roughly $365 million across rounds, including a $181.4 million Series D in November 2024, and is running clinical trials for its lead antibody lixudebart (ALE.F02) and two ADCs, ALE.P02 and ALE.P03.
Calluna Pharma is an Oslo-based clinical-stage biotech building first-in-class antibodies that switch off the upstream signals driving inflammation and fibrosis. Formed in 2024 from the merger of Oxitope Pharma and Arxx Therapeutics and backed by a EUR 75 million Series A, the company targets damage-associated molecular patterns (DAMPs) such as S100A4 to halt diseases like idiopathic pulmonary fibrosis at their root rather than managing symptoms.