Actively Recruiting

Phase 1
Age: 18Years - 40Years
FEMALE
Healthy Volunteers
ID05969795

Comparison of Live Birth Rate (> 24 Weeks) in Natural Cycle Single Euploid Frozen Embryo Transfers With Versus Without Luteal Phase Support

Led by ART Fertility Clinics LLC · Updated on 2025-01-09

342

Participants Needed

3

Research Sites

21 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

Researchers are evaluating whether transferring a single genetically normal embryo during a natural menstrual cycle without routine luteal phase support (LPS) is not worse than transferring with LPS. This study focuses on women with regular ovulatory cycles who have at least one genetically tested embryo available, aiming to simplify treatment and improve participant comfort if the outcomes are similar. Participants are randomly assigned to one of two groups. Both groups will have intermittent ultrasounds and blood tests measuring hormone levels to monitor ovulation. In the group without LPS, embryo transfer is scheduled five days after ovulation without additional progesterone support. The group receiving LPS will be given vaginal progesterone starting on the day of embryo transfer and continuing until the pregnancy test, with support extended to seven weeks if pregnancy occurs. Throughout the study, participants will undergo multiple hormone measurements and ultrasounds to track follicular growth and hormone levels before and after embryo transfer. Pregnancy confirmation will occur via blood tests 10 days after transfer. The study will measure implantation rate, clinical pregnancy rate, live birth rate, and hormone levels at specific time points. Participant involvement includes frequent clinic visits for monitoring and blood draws over the course of the treatment cycle and early pregnancy period.

CONDITIONS

Brief Title

Comparison of Live Birth Rate in Natural Cycle Single Euploid FET Versus Without Luteal Phase Support

Who Can Participate

Age: 18Years - 40Years
FEMALE
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Age 18 to 40 years
  • Regular ovulatory menstrual cycles
  • At least one euploid embryo available after genetic testing on day 5 or 6
  • Ovulation detected by progesterone rise above 1.0 ng/ml after LH surge
  • Progesterone level of at least 5 ng/ml on day 4 after ovulation
Not Eligible

You will not qualify if you...

  • History of repeated pre-menstrual spotting
  • Uterine or ovarian conditions affecting implantation such as adenomyosis, Asherman syndrome, endometriosis, uterine fibroids or polyps, isthmocele with fluid, or hydrosalpinx

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

Intermittent ultrasound scans and serial blood tests to monitor hormone levels throughout one menstrual cycle

Treatment

Duration - From ovulation until 7 weeks of pregnancy if implantation occurs, or until pregnancy test if no implantation

Participants undergo embryo transfer scheduled on the fifth day after ovulation, with or without luteal phase support using vaginal progesterone depending on group assignment.

1 admission visit for embryo transfer and progesterone blood draw, plus hormone measurements on day 5 or 6 and 10 days after embryo transfer

Follow-up

Duration - Up to 41 weeks to assess live birth outcomes

Participants have blood tests to confirm pregnancy status and monitor hormone levels after embryo transfer.

Blood tests 10 days after embryo transfer and pregnancy monitoring visits as needed

Trial Site Locations

Total: 3 locations

1

ART Fertility Clinics LLC

Abu Dhabi, United Arab Emirates, 60202

Actively Recruiting

2

ART Fertility Clinics Al Ain

Al Ain City, United Arab Emirates

Actively Recruiting

3

ART Fertility Clinics Dubai

Dubai, United Arab Emirates

Not Yet Recruiting

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Research Team

B

Barbara Lawrenz, PhD

J

Jonalyn Edades, RN

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

BASIC_SCIENCE

Number of Arms

2

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Frequently Asked Questions

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Published Research Related To This Trial

Early pregnancy complications after frozen-thawed embryo transfer in different cycle regimens: A retrospective cohort study.

Janna Pape, Jérémy Levy, Michael von Wolff

https://pubmed.ncbi.nlm.nih.gov/36308939

Increased Preeclampsia Risk and Reduced Aortic Compliance With In Vitro Fertilization Cycles in the Absence of a Corpus Luteum.

Frauke von Versen-Höynck, Amelia M Schaub, Yueh-Yun Chi...

https://pubmed.ncbi.nlm.nih.gov/30636552