# Effect of Estetrol Monohydrate (E4) on QTc Interval

> **NCT04819906** · PHASE1 · COMPLETED · sponsor: **Estetra** · enrollment: 32 (actual)

## Conditions studied

- Prolonged QTc Interval

## Interventions

- **DRUG:** Estetrol 20 mg
- **DRUG:** Estetrol 100 mg
- **DRUG:** Placebo
- **DRUG:** Moxifloxacin 400 mg

## Key facts

- **NCT ID:** NCT04819906
- **Lead sponsor:** Estetra
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-03-09
- **Primary completion:** 2021-07-14
- **Final completion:** 2021-07-14
- **Target enrollment:** 32 (ACTUAL)
- **Last updated:** 2023-09-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04819906

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04819906, "Effect of Estetrol Monohydrate (E4) on QTc Interval". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04819906. Licensed CC0.

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