Impact of Embryo Cryopreservation on Birth Weight

NCT ID: NCT03989843

Last Updated: 2019-06-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

183 participants

Study Classification

OBSERVATIONAL

Study Start Date

2007-05-01

Study Completion Date

2015-06-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Birth weight (BW) is higher after frozen embryo transfer (FET) than after fresh embryo replacement. No study has compared the BW of siblings conceived using the same oocyte/embryo cohort. The aim of this study was to determine whether the freezing-thawing procedure is involved in such difference.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Infertility

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Frozen embryo transfer

Frozen embryo transfer

No interventions assigned to this group

Fresh embryo transfer

Fresh embryo transfer

No interventions assigned to this group

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* sibling pairs where fresh embryo replacement resulting in a singleton live birth was followed by transfer of one or two frozen embryos from the same cohort that resulted in a singleton live birth, between May 2007 and June 2015.

Exclusion Criteria

* Twin pregnancies and stillbirths were excluded. If the BW of at least one sibling was unknown, the pair was not included in the study.
Minimum Eligible Age

18 Years

Maximum Eligible Age

43 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

University Hospital, Montpellier

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Margaux Anav, Doctor

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Montpellier

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Uh Montpellier

Montpellier, , France

Site Status

Countries

Review the countries where the study has at least one active or historical site.

France

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

RECHMPL19_0306

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Egg Freezing Pilot Study
NCT00839839 COMPLETED NA