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C Terminal Variants of FSH Receptor

This study has been completed.
Information provided by:
University Hospital, Tours Identifier:
First received: August 22, 2011
Last updated: October 19, 2012
Last verified: October 2012

Follicle-stimulating hormone (FSH) is used in medically assisted procreation, to induce an ovarian stimulation in women. However, the FSH dose that has to be injected is quite hard to adjust, because an excess of exogenous hormone could lead to very severe complications for patient. This hormone acts on its cognate receptor, the FSHR, present on the granulosa cells surface, and which regulation involve the intra-cytoplasmic carboxy-terminus domain.

The investigators first aimed to research in the c-terminus part of the receptor the presence of allelic variants that could explain the variations of response to FSH stimulation.

The investigators also would want to complete the data already known on a functionally determinant single nucleotide polymorphism on 680 position in the c-terminus part of the hFSHR.

Then, the investigators would analyze the entire sequence of the hFSHR of patients presenting an unusual phenotype in response to FSH treatment, in order to detect a potential mutation involved in the receptor functionality.

The results of this study could allow us to increase our knowledge on the hFSHR physiology and functionality, in order to adjust treatment to the genetic profile of patients.


Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: C Terminal Peptide Variants of the Fsh Receptor in Women Involved in an Assisted Reproduction Programm : Mechanistic Approach

Further study details as provided by University Hospital, Tours:

Enrollment: 814
Study Start Date: April 2008
Study Completion Date: April 2011
Primary Completion Date: April 2011 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients involved in an assisted reproduction programm, once engaged in a stimulation protocol

Inclusion Criteria:

  • patients above 18 years,
  • entering an IVF cycle
  • informed consent
  • NHS operative

Exclusion Criteria:

  Contacts and Locations
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Please refer to this study by its identifier: NCT01524588

CHRU de Tours
Tours, France, 37000
Sponsors and Collaborators
University Hospital, Tours
Principal Investigator: Dominique ROYERE Tours Hospital
  More Information

Responsible Party: University Hospital, Tours Identifier: NCT01524588     History of Changes
Other Study ID Numbers: AOHP07-DR/VARFSHR
Study First Received: August 22, 2011
Last Updated: October 19, 2012

Keywords provided by University Hospital, Tours:
Genotypic Variation Between Patients
Genotypic Phenotypic Relationships

Additional relevant MeSH terms:
Genital Diseases, Male
Genital Diseases, Female processed this record on July 24, 2017