Pieris Pharmaceuticals is a clinical-stage biopharmaceutical company that develops anticalin-based drugs derived from naturally occurring low-molecular weight human proteins found in bodily fluids. Its lead drug candidates include treatments for asthma, idiopathic pulmonary fibrosis, and gastric cancers. The company has collaborations with several pharmaceutical companies and research institutions. Pieris Pharmaceuticals was founded in 2000 and is headquartered in Boston, Massachusetts.