KalVista Pharmaceuticals, Inc., a clinical stage pharmaceutical company, engages in the discovery, development, and commercialization of small molecule protease inhibitors for diseases with unmet needs in the United States. The company's product portfolio comprises small molecule plasma kallikrein inhibitors targeting hereditary angioedema (HAE) and diabetic macular edema (DME); and oral plasma kallikrein inhibitors. Its products include sebetralstat, which is initiation of the Phase 3 KONFIDENT trial as a potential oral, on-demand therapy for HAE attacks; and Factor XIIa, an oral inhibitor program which is in preclinical stage targets an enzyme in HAE. The company is headquartered in Cambridge, Massachusetts.