Stromedix

About Stromedix

Stromedix, Inc. operated as a biotechnology company with a sharp focus on developing treatments for fibrosis and subsequent organ failure. Founded in 2006 by Dr. Michael Gilman, the company was established to address the significant unmet medical need in fibrotic diseases, which involve the pathological scarring of organs that can lead to their failure. Dr. Gilman's extensive background, including his tenure as Executive Vice President of Research at Biogen Idec, provided him with deep insights into the field and the specific scientific assets that could be leveraged. The company's inception was a direct result of Dr. Gilman, as an Entrepreneur-in-Residence at Atlas Venture, identifying a promising anti-fibrotic antibody program that had been shelved by his former employer, Biogen Idec.

The company's business model was centered on acquiring a promising, yet deprioritized, asset from a large pharmaceutical company and advancing it through clinical development in a more focused, agile startup environment. Stromedix successfully raised capital through Series A and B financing rounds from a syndicate of venture capital firms including Atlas Venture, Frazier Healthcare Partners, New Leaf Venture Partners, and Bessemer Venture Partners to fund its research and development. The primary objective was to de-risk the asset by demonstrating its efficacy and safety, thereby creating significant value for a potential acquisition by a larger pharmaceutical entity.

Stromedix's lead product candidate was STX-100, a humanized monoclonal antibody designed to target integrin αvβ6, a protein that plays a critical role in activating TGF-beta, a central driver of fibrosis. By disrupting this pathway, STX-100 showed significant anti-fibrotic activity in preclinical models for kidney, lung, and liver diseases. The therapy was being developed for idiopathic pulmonary fibrosis (IPF), a severe and fatal lung disease with no FDA-approved treatments at the time. The FDA granted STX-100 orphan drug designation for IPF in August 2010. The company successfully completed a Phase 1 clinical trial, which showed a favorable safety profile, and was initiating a Phase 2 trial for IPF when a significant milestone was reached. In February 2012, in a strategic move that underscored the value created, Biogen Idec acquired Stromedix for an upfront payment of $75 million, with potential milestone payments of up to $487.5 million, effectively bringing its former asset, now significantly advanced, back in-house.