# Study Evaluating Combination of Levonorgestrel and Ethinyl Estradiol in Pre-Menstrual Dysphoric Disorder

> **NCT00195559** · PHASE3 · COMPLETED · sponsor: **Wyeth is now a wholly owned subsidiary of Pfizer** · enrollment: 526 (estimated)

## Conditions studied

- Premenstrual Syndrome
- Menstruation Disturbances

## Interventions

- **DRUG:** Levonorgestrel/Ethinyl Estradiol

## Key facts

- **NCT ID:** NCT00195559
- **Lead sponsor:** Wyeth is now a wholly owned subsidiary of Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2005-09
- **Primary completion:** —
- **Final completion:** 2007-12
- **Target enrollment:** 526 (ESTIMATED)
- **Last updated:** 2007-12-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00195559

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00195559, "Study Evaluating Combination of Levonorgestrel and Ethinyl Estradiol in Pre-Menstrual Dysphoric Disorder". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT00195559. Licensed CC0.

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