Peak Bio, Inc., a clinical-stage biopharmaceutical company, focuses on developing therapeutics for the treatment of patients with inflammatory, cancer, and rare and specialty diseases. The company's lead product candidate is PHP-303, which is in phase 2 clinical study for the treatment of alpha-1 antitrypsin deficiency and acute respiratory distress syndrome. It also develops Trop2 PH1, an antibody-drug-conjugate for solid tumors. The company was founded in 2020 and is based in Pleasanton, California.