Bellerophon Therapeutics, Inc., a clinical-stage therapeutics company, focuses on the development of products for the treatment of cardiopulmonary diseases in the United States. Its primary product is INOpulse, a proprietary pulsatile nitric oxide delivery platform for the treatment of pulmonary hypertension. The company engages in the development of INOpulse, which is in Phase 3 clinical trial for the treatment of pulmonary hypertension associated with fibrotic interstitial lung disease; which has completed Phase 2a clinical trial for pulmonary hypertension associated with chronic obstructive pulmonary disease; and that has completed Phase 2 dose escalation stage for pulmonary hypertension associated with sarcoidosis, as well as for chronic thromboembolic pulmonary hypertension and pulmonary hypertension associated with pulmonary edema from high altitude sickness. The company was formerly known as Ikaria Development LLC and changed its name to Bellerophon Therapeutics, Inc.