Frozen Embryo Transfer Clinical Trials

8 recruitingLast updated: May 13, 2026

There are 8 actively recruiting frozen embryo transfer clinical trials across 4 countries. Studies span Not Applicable, Phase 4. Top locations include Lisbon, Portugal, Budapest, Budapest, Hungary, Győr, Gyor, Hungary. Updated daily from ClinicalTrials.gov.


Frozen Embryo Transfer Trials at a Glance

8 actively recruiting trials for frozen embryo transfer are listed on ClinicalTrialsFinder across 6 cities in 4 countries. The largest study group is Not Applicable with 2 trials, with the heaviest enrollment activity in Lisbon, Budapest, and Győr. Lead sponsors running frozen embryo transfer studies include Mỹ Đức Hospital, Instituto Valenciano de Infertilidade de Lisboa, and ART Fertility Clinics LLC.

Browse frozen embryo transfer trials by phase

About Frozen Embryo Transfer Clinical Trials

Looking for clinical trials for Frozen Embryo Transfer? There are currently 3 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Frozen Embryo Transfer trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Frozen Embryo Transfer clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 18 of 8 trials

Recruiting

Impact Of FET Preparation Protocol On Endometrial Peristalsis: A Prospective Cohort Study

InfertilityFrozen Embryo Transfer (FET)Endometrial Peristalsis+3 more
Mỹ Đức Hospital356 enrolled2 locationsNCT07358468
Recruiting
Not Applicable

Artificial Cycle With or Without GnRH Agonist Pre-treatment for Frozen Embryo Transfer in Adenomyosis Patients

IVFAdenomyosisFrozen Embryo Transfer
Mỹ Đức Hospital222 enrolled1 locationNCT06239376
Recruiting

Comparison of Two Vaginal Progesterone Forms in Frozen Embryo Transfer

InfertilityFrozen Embryo Transfer (FET)Artificial Cycle+1 more
Instituto Valenciano de Infertilidade de Lisboa400 enrolled1 locationNCT07461909
Recruiting

Assessing the Convenience of Natural Proliferative Phase Frozen Embryo Transfer

Frozen Embryo Transfer
Instituto Valenciano de Infertilidade de Lisboa530 enrolled1 locationNCT06307184
Recruiting

Levothyroxine Treatment and IVF Outcomes in Women With Subclinical Hypothyroidism: A Target Trial Emulation

InfertilitySubclinical HypothyroidismIn Vitro Fertilization (IVF)+3 more
Mỹ Đức Hospital900 enrolled2 locationsNCT07257250
Recruiting
Not Applicable

Single Step Protocol and Multi-step Warming Protocol for Blastocyst FET

IVFFrozen Embryo Transfer (FET)Embryo Thawing Protocol
Mỹ Đức Hospital816 enrolled1 locationNCT07088640
Recruiting
Phase 4

Is There a Need for Luteal Support in Modified Natural Cycle Frozen Embryo Transfer Cycles

Frozen Embryo Transfer (FET)Luteal Support
Dunamenti REK Istenhegyi IVF Center180 enrolled5 locationsNCT06875752
Recruiting

Relaxin Measurement in Different Endometrial Preparation Approaches for Frozen Embryo Transfer

Frozen Embryo Transfer
ART Fertility Clinics LLC5 enrolled1 locationNCT06526520