What is the Best Preparation for Embryo Transfer in Cryo Cycles: a Natural Cycle or Light Hormonal Stimulation?

September 9, 2014 updated by: Thomas D'Hooghe, University Hospital, Gasthuisberg

Natural Cycle Versus Stimulation With Human Menopausal Gonadotropin in Cycles With Cryopreserved Embryos

The study investigates if, among women with a regular cycle (between 25 and 45 days), the endometrium is better prepared for the transfer of an embryo that was cryopreserved and if the subsequent embryo implantation rate is higher when the cycle is started with daily, small-dose hormonal injections than in cycles without these daily injections.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

300

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Belgium
    • Vlaams Brabant
      • Leuven, Vlaams Brabant, Belgium, 3000
        • Leuven University Fertility Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

21 years to 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Signed informed consent.
  • Women with a regular cycle (between 21 and 35 days).
  • Embryos with 50% intact blastomeres after thawing.
  • Embryo and endometrium are synchronized.

Exclusion Criteria:

  • Embryo storage time not longer than 5 years.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: 1
Daily injections with a small dose of gonadotrophins from day 2 of the cycle
Drug: human menopausal gonadotrophins
Daily subcutaneous injections, dose 37.5 IU or 75 IU, start on day 2 of the menstrual cycle until ovulation
Other Names:
  • Menopur
No Intervention: 2
No daily injections with hormones

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
implantation rate per embryo
Time Frame: 15 days after the embryo transfer
15 days after the embryo transfer

Secondary Outcome Measures

Outcome Measure
Time Frame
thickness of the endometrium
Time Frame: 0-2 days before the human chorionic gonadotropin (hCG) injection
0-2 days before the human chorionic gonadotropin (hCG) injection

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital, Gasthuisberg

Investigators

  • Study Director: Thomas D'Hooghe, MD, PhD, University Hospital Gasthuisberg, Catholic University Leuven, Belgium

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2004

Primary Completion (Actual)

October 1, 2013

Study Completion (Anticipated)

October 1, 2014

Study Registration Dates

First Submitted

June 26, 2007

First Submitted That Met QC Criteria

June 26, 2007

First Posted (Estimate)

June 27, 2007

Study Record Updates

Last Update Posted (Estimate)

September 10, 2014

Last Update Submitted That Met QC Criteria

September 9, 2014

Last Verified

September 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ML2436 - 30/12/2003

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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