Development of a Screening Tool for Difficult Embryo Transfers

NCT ID: NCT05701072

Last Updated: 2025-02-03

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

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Recruitment Status

COMPLETED

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-03-06

Study Completion Date

2023-12-30

Brief Summary

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This study aims to investigate the accuracy of a proposed screening tool in identifying difficult embryo transfers (ETs) without doing a mock ET.

Detailed Description

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So far there has never been a screening tool to identify difficult ETs without doing a mock ET. This is a prospective, longitudinal study including at least 200 ETs. All women undergo a speculum examination at the time of transvaginal oocyte pick-up (OPU), the screening questionnaire will be filled by the Physician doing the OPU procedure. On the day of real ET, the Physician doing the ET will be blinded for the screening result, and fill a second questionnaire after the ET. Combined with the Embryologist recorded parameters, this second questionnaire will be used to categorize ETs as difficult or normal. Participants will NOT undergo any procedures beyond their routine treatment. Once the targeted number of participants are recruited, the questionnaires will be matched to see the accuracy of the screening questionnaire to identify difficult ETs.

Identification of difficult ETs with a non-invasive, free of cost questionnaire can enable selective mock transfers and facilitate the real ET for patients, who would otherwise be only recognized on the day of real ET, after their embryos have been already thawed for transfer.

Conditions

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Infertility

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Study Groups

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All participants

Oocyte Pick Up

Intervention Type PROCEDURE

The screening questionnaire will be filled by the Physician doing the OPU. The screening questionnaire will be informed by the participant's history. Cervix will be visualized during routine vaginal cleansing for OPU, and its appearance (size, and deviation) will be recorded in the screening questionnaire after the OPU procedure. Finally, a screenshot of the ultrasound used for OPU, showing the cervix and cervical canal in the sagittal plane will be taken during routine procedure and saved in electronic chart.

Embryo Transfer

Intervention Type PROCEDURE

When the participants comes back for ET during her routine treatment, ET will be done in exactly the same way in routine treatment. Participant will not undergo any additional manipulation, intervention, nor the procedure will take longer. The Embryologist assisting the procedure will record the duration of the procedure, from the moment the Physician takes the outer ET catheter to his/her hand until he/she passes the cervix and calls for the inner catheter loaded with the embryo. Up on completion of the ET procedure as routine practice, the Physician will fill a questionnaire about the procedure.

Interventions

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Oocyte Pick Up

The screening questionnaire will be filled by the Physician doing the OPU. The screening questionnaire will be informed by the participant's history. Cervix will be visualized during routine vaginal cleansing for OPU, and its appearance (size, and deviation) will be recorded in the screening questionnaire after the OPU procedure. Finally, a screenshot of the ultrasound used for OPU, showing the cervix and cervical canal in the sagittal plane will be taken during routine procedure and saved in electronic chart.

Intervention Type PROCEDURE

Embryo Transfer

When the participants comes back for ET during her routine treatment, ET will be done in exactly the same way in routine treatment. Participant will not undergo any additional manipulation, intervention, nor the procedure will take longer. The Embryologist assisting the procedure will record the duration of the procedure, from the moment the Physician takes the outer ET catheter to his/her hand until he/she passes the cervix and calls for the inner catheter loaded with the embryo. Up on completion of the ET procedure as routine practice, the Physician will fill a questionnaire about the procedure.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* All women undergoing an ET is eligible.
Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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ART Fertility Clinics LLC

OTHER

Sponsor Role lead

Responsible Party

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Mustafa Baris Ata

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Barbara Lawrenz, PhD

Role: STUDY_DIRECTOR

ART Fertility Clinics LLC

Locations

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ART Fertility Clinics LLC

Abu Dhabi, Abu Dhabi Emirate, United Arab Emirates

Site Status

ART Fertility Clinics LLC

Dubai, , United Arab Emirates

Site Status

Countries

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United Arab Emirates

References

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Cirillo F, Patrizio P, Baccini M, Morenghi E, Ronchetti C, Cafaro L, Zannoni E, Baggiani A, Levi-Setti PE. The human factor: does the operator performing the embryo transfer significantly impact the cycle outcome? Hum Reprod. 2020 Feb 29;35(2):275-282. doi: 10.1093/humrep/dez290.

Reference Type BACKGROUND
PMID: 32100020 (View on PubMed)

Dessolle L, Freour T, Barriere P, Jean M, Ravel C, Darai E, Biau DJ. How soon can I be proficient in embryo transfer? Lessons from the cumulative summation test for learning curve (LC-CUSUM). Hum Reprod. 2010 Feb;25(2):380-6. doi: 10.1093/humrep/dep391. Epub 2009 Nov 18.

Reference Type BACKGROUND
PMID: 19923166 (View on PubMed)

Lopez MJ, Garcia D, Rodriguez A, Colodron M, Vassena R, Vernaeve V. Individualized embryo transfer training: timing and performance. Hum Reprod. 2014 Jul;29(7):1432-7. doi: 10.1093/humrep/deu080. Epub 2014 Apr 29.

Reference Type BACKGROUND
PMID: 24781427 (View on PubMed)

Noyes N, Licciardi F, Grifo J, Krey L, Berkeley A. In vitro fertilization outcome relative to embryo transfer difficulty: a novel approach to the forbidding cervix. Fertil Steril. 1999 Aug;72(2):261-5. doi: 10.1016/s0015-0282(99)00235-6.

Reference Type BACKGROUND
PMID: 10438992 (View on PubMed)

Kably Ambe A, Campos Canas JA, Aguirre Ramos G, Carballo Mondragon E, Carrera Lomas E, Ortiz Reyes H, Kisel Laska R. [Evaluation of two transfer embryo systems performed by six physicians]. Ginecol Obstet Mex. 2011 Apr;79(4):196-9. Spanish.

Reference Type BACKGROUND
PMID: 21966806 (View on PubMed)

Wood MA, Kerrigan KL, Burns MK, Glenn TL, Ludwin A, Christianson MS, Bhagavath B, Lindheim SR. Overcoming the Challenging Cervix: Identification and Techniques to Access the Uterine Cavity. Obstet Gynecol Surv. 2018 Nov;73(11):641-649. doi: 10.1097/OGX.0000000000000614.

Reference Type BACKGROUND
PMID: 30468239 (View on PubMed)

Ata B, Lawrenz B, Melado L, Del Gallego R, Coughlan C, Ruiz F, Marqueta Marques L, El-Damen A, Elkhatib I, Fatemi HM. The ART-ET screening tool: an easy-to-use non-invasive screening method to predict difficult embryo transfers in advance. Hum Reprod. 2025 Apr 1;40(4):647-653. doi: 10.1093/humrep/deaf002.

Reference Type DERIVED
PMID: 39938557 (View on PubMed)

Other Identifiers

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2208-ABU-007-BA

Identifier Type: -

Identifier Source: org_study_id

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