# Frozen Blastocyst Transfer Using Conventional Timing Versus Timing by Endometrial Receptivity Analysis

> **NCT03558399** · NA · UNKNOWN · sponsor: **Shady Grove Fertility Reproductive Science Center** · enrollment: 800 (estimated)

## Conditions studied

- Implantation Failure
- Infertility, Female

## Interventions

- **OTHER:** FET according to ERA
- **OTHER:** FET according to standard protocol

## Key facts

- **NCT ID:** NCT03558399
- **Lead sponsor:** Shady Grove Fertility Reproductive Science Center
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2018-04-25
- **Primary completion:** 2021-09-23
- **Final completion:** 2021-09-23
- **Target enrollment:** 800 (ESTIMATED)
- **Last updated:** 2020-12-03

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03558399

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03558399, "Frozen Blastocyst Transfer Using Conventional Timing Versus Timing by Endometrial Receptivity Analysis". Retrieved via AI Analytics 2026-08-18 from https://api.ai-analytics.org/clinical/NCT03558399. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*