# Women's Health Initiative (WHI)

> **NCT00000611** · PHASE3 · COMPLETED · sponsor: **National Heart, Lung, and Blood Institute (NHLBI)**

## Conditions studied

- Bone Diseases
- Breast Neoplasms
- Cardiovascular Diseases
- Colonic Neoplasms
- Coronary Disease
- Heart Diseases
- Myocardial Ischemia
- Osteoporosis
- Postmenopause

## Interventions

- **DRUG:** hormone replacement therapy
- **DRUG:** estrogens
- **DRUG:** progestins
- **DRUG:** estrogen replacement therapy
- **BEHAVIORAL:** diet, fat-restricted
- **DRUG:** calcium
- **DRUG:** vitamin D
- **BEHAVIORAL:** dietary supplements

## Key facts

- **NCT ID:** NCT00000611
- **Lead sponsor:** National Heart, Lung, and Blood Institute (NHLBI)
- **Sponsor class:** NIH
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** —
- **Primary completion:** 2005-03
- **Final completion:** —
- **Target enrollment:** — (—)
- **Last updated:** 2016-04-15

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00000611

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00000611, "Women's Health Initiative (WHI)". Retrieved via AI Analytics 2026-06-23 from https://api.ai-analytics.org/clinical/NCT00000611. Licensed CC0.

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