# Estradiol and Progesterone Levels Following Frozen Embryo Transfer

> **NCT04997525** · PHASE4 · COMPLETED · sponsor: **Copenhagen University Hospital at Herlev** · enrollment: 305 (actual)

## Conditions studied

- Infertility

## Interventions

- **DRUG:** Estradiol Tablets
- **DRUG:** Progesterone
- **DRUG:** Follitropin Alfa
- **DRUG:** Chorionic Gonadotropin, Alpha

## Key facts

- **NCT ID:** NCT04997525
- **Lead sponsor:** Copenhagen University Hospital at Herlev
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-04-20
- **Primary completion:** 2024-05-07
- **Final completion:** 2024-12-06
- **Target enrollment:** 305 (ACTUAL)
- **Last updated:** 2025-01-03

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04997525

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04997525, "Estradiol and Progesterone Levels Following Frozen Embryo Transfer". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04997525. Licensed CC0.

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