NCT04170517

Brief Summary

Frozen embryo transfer (FET) cycles have become more common in recent years due to a push towards elective single embryo transfer (SET). While it is known that progesterone supplementation during the luteal phase improves clinical pregnancy rates, there is a paucity of prospective data on the impact of serum progesterone levels on pregnancy outcomes in FET cycles. This multicentre prospective cohort study aims to investigate the association between serum progesterone levels on the day of FET and pregnancy outcomes, and to determine a serum progesterone cut-off value above which clinical pregnancy and live birth are more likely to occur. Women undergoing ART-FET cycles at CARE Fertility clinics in the UK will be recruited and their serum progesterone measured on the day of frozen embryo transfer. Follow-up data will be stored in electronic patient records and analysed to determine whether a low serum progesterone level on the day of FET adversely affects ART outcomes.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
402

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2020

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 12, 2019

Completed
8 days until next milestone

First Posted

Study publicly available on registry

November 20, 2019

Completed
1 month until next milestone

Study Start

First participant enrolled

January 2, 2020

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 28, 2021

Completed
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2021

Completed
Last Updated

August 29, 2022

Status Verified

August 1, 2022

Enrollment Period

1.2 years

First QC Date

November 12, 2019

Last Update Submit

August 25, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Live birth rate per participant

    Birth of a live fetus at 24 or more weeks of gestational age

    18 months

Secondary Outcomes (5)

  • Miscarriage rate per participant and per pregnancy

    18 months

  • Implantation rates per participant

    18 months

  • Biochemical pregnancy rate per participant

    18 months

  • Clinical pregnancy rate per participant

    18 months

  • Ectopic pregnancy rate per participant

    18 months

Interventions

Measurement of serum progesterone on the day of FET

Eligibility Criteria

Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All women undergoing ART with FET.

You may qualify if:

  • All women undergoing ART with FET.

You may not qualify if:

  • None. We aim to study the "every day" patient undergoing FET, and for this we intend to keep the population of the study as unselected as possible.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CARE Fertility Birmingham

Birmingham, United Kingdom

Location

Related Publications (1)

  • Melo P, Wood S, Petsas G, Chung Y, Easter C, Price MJ, Fishel S, Khairy M, Kingsland C, Lowe P, Rajkhowa M, Sephton V, Pandey S, Kazem R, Walker D, Gorodeckaja J, Wilcox M, Gallos I, Tozer A, Coomarasamy A. The effect of frozen embryo transfer regimen on the association between serum progesterone and live birth: a multicentre prospective cohort study (ProFET). Hum Reprod Open. 2022 Nov 28;2022(4):hoac054. doi: 10.1093/hropen/hoac054. eCollection 2022.

Biospecimen

Retention: SAMPLES WITH DNA

Serum progesterone will be measured from consenting participants on the day of frozen embryo transfer.

MeSH Terms

Conditions

InfertilityInfertility, Female

Condition Hierarchy (Ancestors)

Genital DiseasesUrogenital DiseasesGenital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy Complications

Study Officials

  • Arri Coomarasamy, MBChB MD FRCOG

    CARE Fertility UK

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 12, 2019

First Posted

November 20, 2019

Study Start

January 2, 2020

Primary Completion

February 28, 2021

Study Completion

December 31, 2021

Last Updated

August 29, 2022

Record last verified: 2022-08

Data Sharing

IPD Sharing
Will not share

No IPD will be shared with other researchers. Any IPD will be confined to the purposes of the study.

Locations