Clinical trialNCT00512850CompletedInterventional

Folic Acid in Preventing Colorectal Polyps in Patients With Previous Colorectal Polyps

SponsorBrigham and Women's HospitalEnrollment672Adenoma of Large Intestine

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

RATIONALE: Chemoprevention is the use of certain substances to keep cancer from forming. The use of folic acid may prevent colorectal cancer. PURPOSE: This randomized clinical trial is studying how well folic acid works compared with a placebo in preventing colorectal polyps in patients who have had previous colorectal polyps.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Edward L. Giovannucci, MD, ScD
Dana-Farber/Brigham and Women's Cancer Center
Principal InvestigatorKOL profile →
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

No facility list is in our current data snapshot for this study. The registry record on ClinicalTrials.gov ↗ carries any published locations. Why? →

Drugs studied

No drug or biological interventions are in our data for this study. It may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 May 1996
Primary completion: 31 Mar 2004
Completion: 1 Feb 2017
Last update posted: 3 Mar 2017
Registered enrollment: 672
Registry id: NCT00512850

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.