Vitamin D Supplementation in RNA-seq Profiles of Single-core Prostate Samples, Among Veterans
Public ClinicalTrials.gov record NCT04621500. 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
Vitamin D Supplementation in RNA-seq Profiles of Single-core Prostate Samples, Including Diversity and Stress Determinants, Among Veterans
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Veterans between the ages of 50-75, who are having a prostate biopsy, will be recruited for their permission to collect an extra biopsy core for RNA-sequencing. If the participants' treatment decision is Active Surveillance, they will be enrolled into the intervention phase of the study. They will receive supplementation with Vitamin D3 (4,000 IU) daily with repeat (surveillance) prostate biopsy one year later. At that time an extra prostate sample core will be collected for RNA-sequencing to determine changes over time. Measurements for allostatic load (body stress/inflammatory markers) will also be collected at the time of enrollment and at the repeat prostate biopsy visit.
Study identification
- NCT ID
- NCT04621500
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 60 participants
Conditions and interventions
Conditions
Interventions
- cholecalciferol Drug
- Standard of Care Prostate Biopsy - collection of 13th core for RNA-seq Procedure
- Standard of Care Prostate Biopsies at baseline and after one year vitamin D3 supplementation Procedure
- Allostatic Load Diagnostic Test
Drug · Procedure · Diagnostic Test
Eligibility (public fields only)
- Age range
- 50 Years to 75 Years
- Sex
- Male
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 3, 2019
- Primary completion
- Feb 3, 2022
- Completion
- Feb 3, 2022
- Last update posted
- Jul 3, 2025
2019 – 2022
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Ralph H. Johnson VA Medical Center | Charleston | South Carolina | 29401 | — |
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 NCT04621500, 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 Jul 3, 2025 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04621500 live on ClinicalTrials.gov.