High-Dose Folic Acid in Preventing Colorectal Cancer in Patients Who Have Had Polyps Surgically Removed
Public ClinicalTrials.gov record NCT00002650. 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
PHASE II DOUBLE-BLIND CHEMOPREVENTION TRIAL OF HIGH DOSE FOLIC ACID VERSUS PLACEBO IN PATIENTS WITH RESECTED COLORECTAL POLYPS
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development or recurrence of cancer. The use of folic acid may be an effective way to prevent colorectal cancer in patients with polyps that have been surgically removed. PURPOSE: Randomized phase II trial to study the effectiveness of high-dose folic acid in preventing colorectal cancer in patients who have had polyps surgically removed within 18 months of the trial.
Study identification
- NCT ID
- NCT00002650
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 80 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 21 Years to 120 Years
- Sex
- All
- 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
- Jun 12, 1995 (Actual)
- Primary completion
- Oct 17, 2004 (Actual)
- Completion
- May 1, 2009 (Actual)
- Last update posted
- Jun 22, 2023
1995 – 2009
United States locations
- U.S. sites
- 8
- U.S. states
- 4
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Robert H. Lurie Comprehensive Cancer Center, Northwestern University | Chicago | Illinois | 60611-3013 | — |
| Veterans Affairs Medical Center - Lakeside Chicago | Chicago | Illinois | 60611 | — |
| New England Medical Center Hospital | Boston | Massachusetts | 02111 | — |
| USDA Human Nutrition Research Center | Boston | Massachusetts | 02111 | — |
| Beth Israel Deaconess Medical Center | Boston | Massachusetts | 02215 | — |
| Veterans Affairs Medical Center - New York | New York | New York | 10010 | — |
| NYU School of Medicine's Kaplan Comprehensive Cancer Center | New York | New York | 10016 | — |
| CCOP - Marshfield Medical Research and Education Foundation | Marshfield | Wisconsin | 54449 | — |
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 NCT00002650, 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 Jun 22, 2023 · Synced Oct 31, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00002650 live on ClinicalTrials.gov.