Retrospective Study on Clinical Results of Preimplantation Genetic Screening at Different Embryo Stage

Completed

• Conditions: Reproductive Disorder; Genetic Disorder; Fertility Disorders
• Interventions: Other: PGS

• Registration Number: NCT03065114
• Lead Sponsor: Yeh

Brief Summary

Preimplantational genetic screen (PGS) is tool for diagnosis of embryo chromosome abnormality before transfer. Under this tool, patients with a family history of genetic disease or special genetic disease could avoid to produce chromosomal abnormalities of the next pregnant. This study is a retrospective study, data collection from 2001 Jan. to 2015. Nov. Patients underwent PGS and data including the couples age, infertility factors, stimulation protocols, medicine records, embryo quality records and blood tests were collected in this study. Analysis the relationship between outcomes of PGS, clinical outcomes and embryo quality is performed and further to find a diagnosis reference for clinical care.

Detailed Description

Research background Preimplantational genetic screen (PGS) is tool for diagnosis of embryo chromosome abnormality before transfer. Under this tool, patients with a family history of genetic disease or special genetic disease could avoid to produce chromosomal abnormalities of the next pregnant. For the preemergence of embryos before the genetic diagnosis must be carried out artificial reproductive treatment, the process includes induction of ovulation, ovulation, in vitro fertilization and embryo culture, to embryos grow to six to eight cells or cultured into the stage of blastocyst stage, Under the embryonic section, take one or several cells, the slices of cells for genetic diagnosis, select the embryo without genetic disease implanted in the uterine cavity, in order to avoid the birth of genetic disease offspring.

PGS can reduce the pregnancy when the chromosomal abnormalities of the fetus after implantation, but also to reduce the risk of abortion from chromosomal abnormalities, and can avoid the couples implanted with genetic abnormalities of the embryos, thereby significantly reducing it is important to promote the process of eugenics and reduce the social cost.

Research purposes The detection of chromosomal abnormalities of embryos are important factors for clinical diagnosis or screening before implantation. However, there is no complete analysis of domestic studies. This program will compare the genes or chromosomal abnormalities and clinical outcomes of embryo testing at different stages of embryonic development.

Research design This study is a retrospective study, data collection from 2001 Jan. to 2015. Nov. Patients underwent PGS and data including the couples age, infertility factors, stimulation protocols, medicine records, embryo quality records and blood tests were collected in this study. Analysis the relationship between outcomes of PGS, clinical outcomes and embryo quality is performed and further to find a diagnosis reference for clinical care.

Study Timeline

• Study Start: 2014-12-01
• Primary Completion: 2015-11-30
• Study Completion: 2015-11-30
• Status Verified: 2017-02
• Study First Submitted: 2017-02-22
• Study First Submitted QC: 2017-02-22
• Last Update Submitted: 2017-02-22
• Study First Posted: 2017-02-27
• Last Update Posted: 2017-02-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 500

Inclusion Criteria

• Women underwent in vitro fertilization (IVF) treatment and preimplantational genetic screen (PGS).

Exclusion Criteria

• N/A

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
PGSno.	PGS	blastocysts from patients underwent preimplantational genetic screen (PGS) prtocols. only euploid embryos were selected to transfer.

Primary Outcome Measures

Name	Time	Method
implantation rate	1~2 week after pregnancy test	detection sac after embryo transfer