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

> **NCT00512850** · NA · COMPLETED · sponsor: **Brigham and Women's Hospital** · enrollment: 672 (actual)

## Conditions studied

- Adenoma of Large Intestine

## Interventions

- **DIETARY_SUPPLEMENT:** Folic acid
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT00512850
- **Lead sponsor:** Brigham and Women's Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 1996-05
- **Primary completion:** 2004-03
- **Final completion:** 2017-02-01
- **Target enrollment:** 672 (ACTUAL)
- **Last updated:** 2017-03-03

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00512850

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00512850, "Folic Acid in Preventing Colorectal Polyps in Patients With Previous Colorectal Polyps". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT00512850. Licensed CC0.

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