# Physicians' Health Study II

> **NCT00270647** · NA · COMPLETED · sponsor: **Brigham and Women's Hospital** · enrollment: 14641 (actual)

## Conditions studied

- Cancer
- Prostate Cancer
- Colorectal Cancer
- Cardiovascular Disease
- Eye Disease
- Cognitive Decline

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin E
- **DIETARY_SUPPLEMENT:** Vitamin C
- **DIETARY_SUPPLEMENT:** Multivitamin
- **DIETARY_SUPPLEMENT:** Beta-carotene

## Key facts

- **NCT ID:** NCT00270647
- **Lead sponsor:** Brigham and Women's Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 1997-07
- **Primary completion:** 2011-06
- **Final completion:** 2011-06
- **Target enrollment:** 14641 (ACTUAL)
- **Last updated:** 2018-02-28

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00270647

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00270647, "Physicians' Health Study II". Retrieved via AI Analytics 2026-08-11 from https://api.ai-analytics.org/clinical/NCT00270647. Licensed CC0.

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