# Feasibility Study Into the Contraceptive Effect of Estetrol

> **NCT00563472** · PHASE2 · COMPLETED · sponsor: **Pantarhei Bioscience** · enrollment: 52 (actual)

## Conditions studied

- Healthy

## Interventions

- **DRUG:** estetrol
- **DRUG:** estetrol
- **DRUG:** estetrol and desogestrel
- **DRUG:** estetrol and progesterone

## Key facts

- **NCT ID:** NCT00563472
- **Lead sponsor:** Pantarhei Bioscience
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2007-11
- **Primary completion:** 2008-08
- **Final completion:** 2008-08
- **Target enrollment:** 52 (ACTUAL)
- **Last updated:** 2012-05-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00563472

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00563472, "Feasibility Study Into the Contraceptive Effect of Estetrol". Retrieved via AI Analytics 2026-06-12 from https://api.ai-analytics.org/clinical/NCT00563472. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*