Cholecalciferol Supplement in Treating Patients With Localized Prostate Cancer Undergoing Observation
Public ClinicalTrials.gov record NCT00887432. 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
Randomized Placebo-Controlled, Double-Blind Study of Cholecalciferol Replacement in Patients on Expectant Management for Localized Prostate Cancer
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This randomized clinical trial studies how well cholecalciferol supplement works in treating patients with localized prostate cancer undergoing observation. Cholecalciferol may help prostate cancer cells become more like normal cells, and to grow and spread more slowly.
Study identification
- NCT ID
- NCT00887432
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 132 participants
Conditions and interventions
Conditions
Interventions
- Cholecalciferol Dietary Supplement
- Laboratory Biomarker Analysis Other
- Patient Observation Other
- Placebo Administration Drug
- Quality-of-Life Assessment Other
- Questionnaire Administration Other
Dietary Supplement · Other · Drug
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- Male
- 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
- Apr 7, 2009
- Primary completion
- Jun 7, 2020
- Completion
- Jun 7, 2020
- Last update posted
- Oct 25, 2021
2009 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Roswell Park Cancer Institute | Buffalo | New York | 14263 | — |
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 NCT00887432, 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 25, 2021 · Synced Sep 26, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00887432 live on ClinicalTrials.gov.