Circassia Group Plc, formerly Circassia Pharmaceuticals Plc, is a specialty biopharmaceutical company focused on allergy and respiratory diseases. The Company is primarily focused on offering its commercialized asthma management products directly to specialist physicians in various markets. The Company’s NIOX products are used to improve asthma and offers a portfolio of asthma and chronic obstructive pulmonary disease product candidates. The Company’s commercialized chronic obstructive pulmonary disease (COPD) products are Tudorza and Duaklir in the United States. The Company’s pipeline products also include late-stage nitric oxide product LungFit PH, which is a ventilator-compatible system that utilizes an electric voltage to produce precise quantities of nitric oxide from the nitrogen and oxygen in air.