PRebiotic to IMprovE Calcium Absorption
Public ClinicalTrials.gov record NCT03272542. 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
Prebiotic Intervention to Improve Calcium Absorption After Gastric Bypass Surgery
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Gastric bypass surgery is a highly effective treatment for obesity, but it has negative effects on skeletal health, due in part to a dramatic decline in intestinal calcium absorption capacity. Animal and human studies suggest that non-digestible fibers termed prebiotics, such as soluble corn fiber (SCF), augment calcium absorption in the lower intestine as they act as substrates for beneficial gut microbiota. This is a pilot randomized controlled trial of the effects of SCF vs. placebo on intestinal calcium absorption, bone turnover marker levels, and the gut microbiome in postmenopausal women who have previously undergone gastric bypass surgery.
Study identification
- NCT ID
- NCT03272542
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 20 participants
Conditions and interventions
Conditions
Interventions
- Prebiotic: soluble corn fiber Dietary Supplement
- Placebo: maltodextrin Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 18 Years to 75 Years
- 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
- Nov 20, 2017
- Primary completion
- Jan 30, 2020
- Completion
- Jan 30, 2020
- Last update posted
- Oct 21, 2020
2017 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| UCSF | San Francisco | California | 94143 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
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About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03272542, 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 21, 2020 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03272542 live on ClinicalTrials.gov.