# Optimal Timing of Euploid Day 6 Blastocyst Transfer in Frozen HRT Cycles, Day 6 or Day 7 of Progesterone Administration.

> **NCT05980091** · PHASE1 · RECRUITING · sponsor: **ART Fertility Clinics LLC** · enrollment: 316 (estimated)

## Conditions studied

- Infertility
- Fertility Issues
- Infertility, Female

## Interventions

- **DIAGNOSTIC_TEST:** Transvaginal ultrasound
- **DIAGNOSTIC_TEST:** Serum LH, E2, P4
- **DRUG:** Estradiol Valerate 2 MG
- **DRUG:** Progesterone 100 Mg Vaginal Insert
- **DIAGNOSTIC_TEST:** Serum P4 day of ET
- **PROCEDURE:** Embryo transfer

## Key facts

- **NCT ID:** NCT05980091
- **Lead sponsor:** ART Fertility Clinics LLC
- **Sponsor class:** OTHER
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2023-09-22
- **Primary completion:** 2025-12-30
- **Final completion:** 2025-12-30
- **Target enrollment:** 316 (ESTIMATED)
- **Last updated:** 2025-02-21


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05980091

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05980091, "Optimal Timing of Euploid Day 6 Blastocyst Transfer in Frozen HRT Cycles, Day 6 or Day 7 of Progesterone Administration.". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT05980091. Licensed CC0.

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