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Efficacy of Ovarian Stimulation Based on FSHR Genotype Status

NCT00749853 · Status: SUSPENDED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 165

Last updated 2015-05-05

No results posted yet for this study

Summary

Available data from in vitro studies and clinical trials indicate that genetic factors play a significant role in the success of controlled ovarian stimulation (COS) prior to in vitro fertilization - embryo trandfer (IVF-ET). Women with the FSHR Ser680Asn Ser/Ser genotype make up between 13% and 26% of women undergoing IVF-ET and are characterised by higher basal FSH serum concentrations, the need for a higher amount of FSH for COS, and a higher risk of poor response to COS and cycle cancellation.

The investigators therefore intend to perform a study to investigate whether a dose-intensified COS protocol based on FSHR genotype status in women with the FSHR Ser680Asn Ser/Ser genotype is more effective than routine management in terms of

* the mean number of follicles
* the mean number of embryos
* the rate of poor responders
* the rate of women with cycle cancellations, and v) the clinical pregnancy rates.

Eligible women will be randomized to a stimulation protocol characterised by a longer duration and increased dosage of FSH stimulation (group A) or a standard stimulation protocol (group B).

Conditions

  • Sterility

Interventions

DRUG

follicle stimulating hormone

Pituitary down-regulation will be achieved using buserelin (Suprefact®, Hoechst, Frankfurt, Germany) at a fixed daily dose of 200 mg s.c., according to a long agonist protocol, starting on day 2 of the normal menstrual cycle. Treatment with r-hFSH (Gonal-F®, Serono Austria GmbH, Vienna, Austria) will be started in women with serum E2 concentrations \<200 pmol/l and no follicles \>15 mm in diameter or ovarian cysts on ultrasonographic examination. The initial r-hFSH dose will be 250 IU s.c. daily for 5 days, after which the dose will be increased to a maximum of 450 IU per day using a step-up protocol with steps of 50 IU/day.

DRUG

follicle stimulating hormone

No pituitary down-regulation will be performed. Treatment with r-hFSH (Gonal-F®, Serono Austria GmbH, Vienna, Austria) will be started in women with serum E2 concentrations \<200 pmol/l and no follicles \>15 mm in diameter or ovarian cysts on ultrasonographic examination. The r-hFSH dose will be 150 IU s.c. daily for 11 consecutive days.

Sponsors & Collaborators

  • Medical University of Vienna

    lead OTHER

Principal Investigators

  • Johannes C. Huber, MD, PhD · Medical University of Vienna

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2015-05-31
Primary Completion
2015-05-31
Completion
2015-06-30

Countries

  • Austria

Study Locations

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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 NCT00749853 on ClinicalTrials.gov