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An Open Label Safety Study of Inhaled Gaseous Nitric Oxide (gNO) for Adults & Adolescents With Non-Tuberculous Mycobacteria, Burkholderia Spp, Aspergillus Spp and Corona-like Viral (Sub-Study) Infections

COVID-19 Research Area(s): Vaccines & Treatments

Primary Objective: Assess the safety of inhaled NO (gNO) in adults & adolescents with NTM, Burkholderia and Aspergillus Lung Infections. Safety will be evaluated by unanticipated adverse events in clinical labs (hematology, coagulation, and serum chemistries); in vitals; in inspired concentration of NO, O2 and NO2 delivered to each subject and; in real time methemoglobin and oxygen saturation levels.

Primary Endpoint: Determine the safety of gNO in the NTM population, as confirmed by no unanticipated adverse events Absence of a deleterious mean change in FEV1% predicted (absolute) from baseline

Secondary safety Endpoint: Determine the efficacy of inhaled NO in adults with NTM, Burkholderia and Aspergillus Lung Infections Efficacy will be evaluated by measuring the change in lung function with spirometry (specifically absolute change in FEV1 % predicted) from baseline to Days 5, 12, 19 and 26. Secondary Efficacy Endpoint Determine the presence of an efficacy signal of gNO in the NTM, Burkholderia and Aspergillus Lung Infections Efficacy will be assessed by the antimicrobial effect of inhaled NO on the density of NTM species and other microorganisms in sputum. Serial measurements of these microbial colony counts in sputum have been previously used as a measure of antimicrobial activity in other clinical trials of antibiotics in NTM. • as confirmed by an improvement in pre-treatment bacterial colonization and post-treatment bacterial colonization on Days 19 and 26 as compared to baseline.