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Technical Factors of Embryo Transfer Procedure That Might Affect the Outcome

Technical Factors of Embryo Transfer Procedure That Might Affect the Outcome

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04408547
Acronym
IAFACT
Enrollment
3512
Registered
2020-05-29
Start date
2014-01-03
Completion date
2019-12-30
Last updated
2020-06-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

IVF, Pregnancy

Brief summary

Analysis our Embryo transfer data, prospectively collected during the last 6 years (2014- 2019), performed by the same operator YP, who has been doing embryo transfers since 1984. All factors that might impact the embryo transfer will be analyzed. We want to see which factors that influence the success rate are not related to the subjectivity of the operator and could be adjusted through different approaches.

Detailed description

Most patients undergoing IVF or ICSI reach a blastocyst embryo transfer but less achieve pregnancy and live birth. Many reasons have been proposed to explain these results. Among them, the factor Embryo Transfer Procedure gained less of the attention since few papers have been published and most of them had a lot of biases. In order to eliminate possible biases, we wanted to analyze our Embryo transfer data, prospectively collected during the last 6 years (2014- 2019), performed by the same operator YP, who has been doing embryo transfers since 1984. All factors that might impact the embryo transfer will be analyzed. We want to see which factors that influence the success rate are not related to the subjectivity of the operator and could be adjusted through different approaches. Primary outcomes: bhCG positive rate, pregnancy rate, ongoing pregnancy rate, live birth rate. Secondary outcomes: Full bladder, uterine ax orientation, Endometrial thickness, type of catheter, straightforward advancement of the preloaded catheter, use of a stiffer hard catheter to pass through the cervix and the orifice, the site of the uterine cavity that the embryo was released, single or double transfer due to blocked embryo in the catheter. In addition for each embryo transfer variables that may influence the pregnancy rates will be collected: age of the woman, number of oocytes harvested, sperm characteristics, fertilization rate, stage and grade of the embryos the day of transfer

Interventions

DEVICEembryo transfer catheter

undergoing embryo transfer

Sponsors

Iakentro Fertility Centre
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 49 Years
Healthy volunteers
No

Inclusion criteria

* Women undergoing embryo transfer after IVF

Exclusion criteria

* Women with known embryo implantation issues

Design outcomes

Primary

MeasureTime frameDescription
Number of patients with bhCG positive test after embryo transferNumber of patients bhCG positive up to12 days after embryo transferNumber of patients bhCG positive up to12 days after embryo transfer
Number of patients with on going clinical pregnancyNumber of patients with on going clinical pregnancy up to 12 weeks after embryo transferNumber of patients with on going clinical pregnancy up to12 weeks after embryo transfer
Number of live births after embryo transferNumber oflive birth up to 9 months after embryo transferNumber oflive birth up to9 months after embryo transfer

Secondary

MeasureTime frameDescription
Type of embryo transfer catheterAt the time of embryo transfer and the impact of pregnancy test result 12 days after the mebryo transferType of embryo transfer catheter used in the procedure
Percentage of fullnes of bladderAt the time of embryo transfer and the impact of pregnancy test result 12 days after the mebryo transferPercentage of fullness of the bladder during embryo transfer
Embryo retained in the catheterNumber of patients who underwent embryo transfer and the embryo was retained in the catheter at the time of embryo transfer and the impact of pregnancy test result 12 days after the mebryo transferEmbryo retained in the catheter
Distance from the fundus of the embryo releaseAt the time of embryo transfer and the impact of pregnancy test result 12 days after the mebryo transferDistance from the fundus of the embryo release
Endometrial thicknessprior to embryo transferEndometrial thickness prior to embryo transfer
Uterine axe orientationAt the time of embryo transfer and the impact of pregnancy test result 12 days after the mebryo transferUterine axe orientation during embryo transfer

Countries

Greece

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026