A Proof of Concept Study of Inhaled Nitric Oxide for Adults With Pulmonary Non-Tuberculous Mycobacterial Infection

Exclusion Criteria

• •Smoking history in the prior 6 months Significant hemoptysis within 30 days prior to screening (\>5 ml of blood in one coughing episode or \>30 ml of blood in a 24 hour period) Forced expiratory volume at one second (FEV1) \<40% of predicted On supplemental oxygen or SaO2 \<90% at screening or Day 1, or within 30 days prior to enrollment.
• •Known cardiac (left heart) insufficiency (defined as LVEF \<35%) prior to screening Known pulmonary hypertension Known or suspected hemoglobinopathy Initiation of NTM treatment regimen or a change in the regimen was made in the prior 6 months. Subjects on active treatment can be enrolled if they have been on a stable anti-NTM regimen for at least 6 months.
• •Initiation of new chronic therapy within 4 weeks prior to screening Use of drugs known to increase methemoglobin (see 12.2.7) at screening
• •Any of the following abnormal lab values at screening:
• •6-GPD deficiency Hemoglobin \<10g/dl Platelet count \<100,000/mm3 Prothrombin time international ratio (INR) \>1.5 Abnormal liver function defined as any two of the following ALT \>3x ULN AST \>3x ULN ALP \>3x ULN GGT \>3x ULN
• •Abnormal renal function defined as:
• •Calculated Creatinine Clearance \<50 ml (as calculated by Cockcroft/Gault)
• •For women of child bearing potential:
• •Positive pregnancy test at screening or Lactating or Unwilling to practice a medically acceptable form of contraception from screening to Day 15 (acceptable forms of contraception: abstinence, hormonal birth control, intrauterine device, or barrier method plus a spermicidal agent) Use of an investigational drug within 30 days prior to screening Intravenous or oral steroids (\>10 mg/d prednisone equivalent) in the 14 days prior to screening Any condition that the Investigator believes would interfere with the intent of this study or would make participation not in the best interest of the subject.