Hypertonic Saline for MAC

Inclusion Criteria:

* At least 2 positive MAC sputum cultures in the last 12 months with at least one AFB positive sputum obtained within 12 weeks prior to randomization
* Meet American Thoracic Society (ATS)/ Infectious Disease Society of America (IDSA) 2007 pulmonary clinical disease criteria\[1\]
* Age 18 and older
* Diagnosis of Bronchiectasis and/or bronchiectatic findings evident on chest CT report
* Ability to provide informed consent

Exclusion Criteria:

* Any patient who is unwilling or unable to provide consent or to comply with this protocol
* Cavitary NTM disease
* Patients who are currently taking or within the prior 6 months received any of the following: bedaquiline, or any component of ATS/IDSA multi-drug recommended therapy (macrolide, ethambutol, rifampin) for MAC treatment
* Diagnosis of HIV
* Diagnosis of Cystic fibrosis
* Active pulmonary tuberculosis, fungal, or nocardial disease requiring treatment at screening
* Current use of chronic systemic corticosteroids at doses of 15 mg/day for more than 3 months
* Prior lung or other solid organ transplant