Fatty Acids in Airway Smooth Muscle of Asthmatics
Public ClinicalTrials.gov record NCT02809235. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
The Role of Cholecystokinin and the Cholecystokinin Receptor in the Airway Smooth Muscle of Asthmatics
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
In this proof of concept study, the investigators aim to determine if supplementation with coconut oil causes an increase in cholecystokinin and cholecystokinin receptor expression in the airway smooth muscle of lean asthmatics, and whether these changes correlate with changes in airway stiffness (estimated by bronchodilator reversibility, airway reactivity, and airway resistance) or symptom control. The investigators propose a 5 week, single center trial in 20 lean patients with mild asthma (not taking inhaled corticosteroids) aged 18 and older. Subjects will supplement their usual diets with 3 tablespoons of coconut oil, a commercially available oil with high dodecanoic acid content, for 3 weeks. To quantify changes in airway smooth muscle cholecystokinin and cholecystokinin-receptor expression, each subject will undergo bronchoscopy with endobronchial biopsies before and after coconut oil ingestion. For the secondary analysis, subjects will also complete spirometry with bronchodilator testing, methacholine challenge, body plethysmography, and an Asthma Control Questionnaire (ACQ) before and after the dietary intervention. This information will be used to compare the changes in airway smooth muscle cholecystokinin and cholecystokinin receptor expression to changes in bronchodilator reversibility, airway reactivity, airway resistance, and symptom control. In the exploratory aims, the investigators will correlate the changes in airway smooth muscle cholecystokinin and cholecystokinin receptor expression with changes in FEV1 and peak flow measurements. The investigators therefore hope to elucidate information about the mechanistic role of cholecystokinin in airway smooth muscle stiffness and contraction.
Study identification
- NCT ID
- NCT02809235
- Recruitment status
- Withdrawn
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- Not listed
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- Female
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 31, 2026
- Primary completion
- Oct 31, 2028
- Completion
- Oct 31, 2029
- Last update posted
- Oct 22, 2024
2026 – 2029
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Asthma Research Center, Brigham and Women's Hospital | Boston | Massachusetts | 02115 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02809235, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 22, 2024 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02809235 live on ClinicalTrials.gov.