# Comparison of Two Vaginal Progesterone Forms in Frozen Embryo Transfer

> **NCT07461909** · — · RECRUITING · sponsor: **Instituto Valenciano de Infertilidade de Lisboa** · enrollment: 400 (estimated)

## Conditions studied

- Frozen Embryo Transfer (FET)
- Infertility
- Artificial Cycle
- Natural Cycle

## Interventions

- **OTHER:** Vaginal progesterone soft capsules
- **OTHER:** Vaginal progesterone pessaries

## Key facts

- **NCT ID:** NCT07461909
- **Lead sponsor:** Instituto Valenciano de Infertilidade de Lisboa
- **Sponsor class:** NETWORK
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2024-11-08
- **Primary completion:** 2026-08
- **Final completion:** 2026-12
- **Target enrollment:** 400 (ESTIMATED)
- **Last updated:** 2026-03-10

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07461909

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07461909, "Comparison of Two Vaginal Progesterone Forms in Frozen Embryo Transfer". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT07461909. Licensed CC0.

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