Beetroot juice boosts exercise in lung disease patients?
NCT ID NCT04299945
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether drinking beetroot juice, which is high in nitrate, can help people with fibrotic interstitial lung disease exercise longer. Participants will drink either nitrate-rich or nitrate-free beetroot juice and then do a cycling test. The goal is to see if the juice improves exercise endurance and reduces shortness of breath.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 15 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2024
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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19 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * A multidisciplinary diagnosis of idiopathic pulmonary fibrosis (IPF), idiopathic fibrotic nonspecific interstitial pneumonia (NSIP), chronic hypersensitivity pneumonitis (HP), or unclassifiable ILD with a differential diagnosis that consists of the above diagnoses * Fibrosis on high resolution computed tomography (HRCT): honeycombing, reticulation, or traction bronchiectasis * Oxygen saturation ≥92% by pulse oximetry at rest while breathing room air * Clinically stable for the preceding 6 weeks * Can fluently read and write in English Exclusion Criteria: * Contraindication to exercise testing (e.g. significant cardiovascular, musculoskeletal, neurological disease) (see Table 4 from ERS/ATS consensus statement) * Other significant pulmonary or extra-pulmonary disease that, based on clinical assessment, could impair exercise capacity and/or oxygenation * FVC \<50% or DLCO \<25% * Use of prednisone \>10 mg/day for \>2 weeks within 3 months of the first study visit * Cardiac pacemaker or any metal or electronics inside of the body
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Providence Health Care - St. Paul's Hosptial
RECRUITINGVancouver, British Columbia, V6Z 1Y6, Canada
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Vancouver Coastal Health
RECRUITINGVancouver, V5Z 1M9, Canada
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