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Completed

NCT Number: NCT03561129

Embryotransfer Operator and Pregnancy Rate

Several studies had analyzed the correlation between embryo transfer operator experience and implantation, clinical pregnancy, abortion and delivery rate.

The aim of the present study is determining if the probabilities of embryo implantation and pregnancy are associated to the operator performing the embryo transfer.

This study allows following more than 30 different operators in a global period of 20 years with almost 20,000 procedures.

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Key information

Conditions

Sterility Genital Diseases Infertility Urogenital Diseases

Age range

18 year–48 year

Sex eligibility

Female

Study type

Observational

About this study

Several studies had analyzed the correlation between embryo transfer operator experience and implantation, clinical pregnancy, abortion and delivery rate. Until now, the evidences are mixed and inconclusive.

The aim of the present study is determining if the probabilities of embryo implantation and pregnancy are associated to the operator performing the embryo transfer.

The database includes all the fresh embryo transfers, performed between January 1997 and December 2016 at Humanitas Fertility Center after IVF-ICSI cycles. Only embryo transfers performed by the surgeon on duty for that day ("Gynecologist of the Day") will be included.

Secondary end point is to evaluate if it is possible to draw a learning curve for transfer in terms of pregnancies for the different surgeons.

The strength of this study relies on the completeness of the preoperative factors and follow up and on the vastest dataset in literature that can permit to correct for multiple confounders and analyze a wide group of outcomes.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • fresh embryos' transfers
  • embryo transfers performed only by the surgeon on duty for that day ("Gynecologist of the Day")

Exclusion criteria

  • cryo thawed embryos' transfers

Treatment and study plan

Embryo transfer

Other

all the fresh embryo transfers, performed between January 1997 and December 2016 at Humanitas Fertility Center after IVF-ICSI cycles, divided per operator

Primary outcomes

  1. Pregnancy rate per operator

    Time frame: 20 years

    number of viable intrauterine embryos/ total number of embryos transferred per operator

Sponsors and collaborators

Lead sponsor

Istituto Clinico Humanitas

Other

Registry information

Official study title

Does the Operator Performing the Embryo Transfer Significantly Influence the Cycle Outcome: A Retrospective Evaluation of Humanitas Fertility Center's Experience

Acronym: Operator

Important dates

Study start
1997
Primary completion
2016
Study completion
2017
First posted
Jun 19, 2018
Registry last updated
Jun 20, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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