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Frozen Embryo Transfer With GnRH-antagonist Trial

NCT03763786 · Status: UNKNOWN · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 300

Last updated 2019-04-25

No results posted yet for this study

Summary

The fertility treatment in vitro fertilisation (IVF), sometimes including intra-cytoplasmic sperm injection (ICSI), involves the creation of embryos in a laboratory. These embryos are then transferred into the womb of the patient with the hope of a resulting pregnancy and live birth. Embryos can also be cryopreserved (frozen) and stored, and then later replaced in a cycle called frozen embryo transfer (FET). There are several methods of preparing the patient's womb to receive the frozen-thawed embryo(s) but commonly embryos are replaced during a medicated cycle. Usually oestrogen and progesterone are administered to prepare the womb lining for embryo transfer at the appropriate time, and in addition a drug called a GnRH antagonist is administered to prevent a women's own hormones from interfering with this process as it is thought this might lead to higher numbers of cycles being cancelled. However, there is some suspicion that this drug (GnRH antagonist) may not be required and that women are using this drug unnecessarily.

Some clinics do not use GnRH antagonists in FET cycles, but the investigators do not know if they have higher rates of cancelled cycles as a result.

This pilot study aims to compare cycles of medicated FET using oestrogen and progesterone, either with or without pituitary suppression in the form of GnRH antagonist (Cetrotide), in patients over the next 18 months who are planning FET cycles at Oxford Fertility, UK to find out if both give the same chance of having a baby, which treatment is better for patients and to assess the feasibility of undertaking a future larger study. Cetrotide is a marketed and well-known medication and any risk or serious adverse effects are unlikely. The study is an open label prospective randomised controlled trial. Funding for the medication (Cetrotide) is provided by Oxford Fertility.

Conditions

Interventions

DRUG

Cetrorelix Acetate

Used a standard

Sponsors & Collaborators

  • Oxford Fertility Limited, United Kingdom

    collaborator UNKNOWN

  • University of Oxford

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
42 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-12-13
Primary Completion
2021-01-31
Completion
2021-01-31

Countries

  • United Kingdom

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03763786 on ClinicalTrials.gov