KalVista Pharmaceuticals, Inc. is a clinical stage pharmaceutical company, which engages in the discovery, development, and commercialization of small molecule protease inhibitors for diseases with significant unmet need. The company is headquartered in Framingham, Massachusetts and currently employs 275 full-time employees. The company went IPO on 2015-04-09. The company has discovered and developed EKTERLY, an oral on-demand treatment for hereditary angioedema (HAE). EKTERLY is formulated as a film-coated tablet for oral administration, with high bioavailability and selectivity for plasma kallikrein, enabling maximal dosing and a rapid decline in edema effectors that cause swelling during an HAE attack. Its clinical trials include KONFIDENT-KID, KONFIDENT-S and KONFIDENT. KONFIDENT-KID is an open-label clinical trial of sebetralstat for on-demand treatment of HAE attacks in pediatric patients. KONFIDENT-KID collects safety, pharmacokinetic and efficacy data for each patient for up to one year and features a proprietary pediatric orally disintegrating tablet formulation of sebetralstat. KONFIDENT-S study is an open-label extension trial to evaluate the long-term safety of sebetralstat for on-demand treatment of HAE attacks in adolescent and adult patients with type I or type II HAE.