Comparing Azithromycin with Ethambutol for nontuberculous mycobacterial lung disease
Official title: Hypertonic Saline for MAC
Hypertonic Saline for Treatment of Pulmonary Mycobacterium Avium Complex (MAC) Disease
- Phase 4
- 2 groups
- One site, in Toronto
- Recruiting
Interventions (4)
- Medication
Hypertonic saline
Nebulizing with 7% hypertonic saline twice daily for 12 weeks.
- Medication
Azithromycin
Standard of care
- Medication
Ethambutol
Standard of care
- Medication
Rifampin
Standard of care
Canadian Sites (1)
1 of 1 recruiting
- Recruiting
University Health Network
Toronto, Ontario
Eligibility Criteria
See who this study is looking for13 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +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 randomizationRandomisedWhich group you go into is decided by chance, not by you or your doctor.Read more →
- +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 consentInformed consentThe process of being told what taking part involves, then choosing freely.Read more →
Exclusion
- −Diagnosis of HIV
- −Any patient who is unwilling or unable to provide consentInformed consentThe process of being told what taking part involves, then choosing freely.Read more → or to comply with this protocolProtocolThe detailed plan a study must follow.Read more →
- −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 Cystic fibrosis
- −Active pulmonary tuberculosis, fungal, or nocardial disease requiring treatment at screeningScreeningThe checks done before joining, to see whether a study fits.Read more →
- −Current use of chronic systemic corticosteroids at doses of 15 mg/day for more than 3 months
- −Prior lung or other solid organ transplant
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is testing a treatment for a condition.
Phase 4Phase 4A study of a treatment that is already approved and in use.Read more → — a study of a treatment already approved for use, following it in everyday practice.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
Who receives what
There are 2 groups in this study.
Group A receives Hypertonic saline.
Registry label: A: Hypertonic saline
Group B, the comparison group, receives one or more of: Azithromycin, Ethambutol and Rifampin.
Registry label: B: Standard of Care
From the trial registry
Built from these fields:
- armsInterventionsModule.armGroups[].label
- armsInterventionsModule.armGroups[].type
- armsInterventionsModule.armGroups[].interventionNames
How the study is run
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
This study is open-labelOpen-labelEveryone knows which treatment is being given — nothing is hidden.Read more →: everyone knows which treatment is being given, including you and the study team.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
One group receives an existing treatment, so the two can be compared.
From the trial registry
Built from these fields:
- armsInterventionsModule.armGroups[].type
- armsInterventionsModule.armGroups[].interventionNames
Who the study is looking for
The study lists a minimum age of 18 years, with no upper limit given.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 50 people.
The study is currently expected to finish around December 2025.
The main measurement is taken over: 12 weeks.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Culture conversion — measured over 12 weeks.
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT04921943 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About Hypertonic salineDrug
Nebulizing with 7% hypertonic saline twice daily for 12 weeks.
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About AzithromycinDrug
Standard of care
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About EthambutolDrug
Standard of care
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About RifampinDrug
Standard of care
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: a minimum age of 18 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
One group receives an existing treatment so the two can be compared.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
This study is open-labelOpen-labelEveryone knows which treatment is being given — nothing is hidden.Read more →: everyone knows which treatment is being given, including you and the study team.
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists a minimum age of 18 years, with no upper limit given.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: 12 weeks.
The study as a whole is currently expected to finish around 2025-12-31.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 50 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 2 locations, including: Toronto, Ontario, Canada; New York, New York, United States.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
The MAC-HS study is a testing whether hypertonic saline helps improve symptoms and clearance of mycobacteria in patients with M. avium complex lung infections.
Other Sites (1)
NYU Langone Health
New York, New York, United States
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See if this trial could fit youThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.