Circassia has a pipeline of treatments for asthma and chronic obstructive pulmonary disease (COPD). Many of the products are based on our proprietary technologies, for which we are seeking development partners.

Asthma therapies

Our particle-engineered treatments target direct substitution of several market-leading asthma products.

COPD treatments

A number of our COPD therapies leverage the company’s proprietary particle-engineering technologies, which offer the potential to develop novel formulations.


AirNOvent is a ventilator-compatible system that utilizes an electric voltage to produce precise quantities of nitric oxide from the nitrogen and oxygen in air.