Clinical Trials Logo

Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT00665171
Other study ID # pcodsnp
Secondary ID
Status Not yet recruiting
Phase N/A
First received April 18, 2008
Last updated April 22, 2008
Start date June 2008

Study information

Verified date April 2008
Source Maaynei Hayesha Medical Center
Contact n/a
Is FDA regulated No
Health authority Israel: Ministry of Health
Study type Observational

Clinical Trial Summary

Background: Infertility affects up to 15% of married couples. About half are attributable to female factors, among which anovulation is the leading cause. Some 5% of all women of reproductive age are anovulatory due to the polycystic ovarian syndrome (PCOS). PCOS causes also major health and cosmetic problems and significantly affects quality of life. PCOS is associated with cardiovascular morbidity and Type 2 diabetes mellitus, but it is unclear whether these are caused by the ovarian dysfunction or result from a common denominator.

Working hypothesis and aims: Whole genome analysis of multigenerational families in which at least one woman is affected by PCOS may significantly reduce the numbers needed to verify the specific genes, involved in the causation of PCOS.

Methods: Registration of multigenerational families and production of personal files with full workup for the presence of PCOS or its absence (in the women participants). Drawing of blood, extraction and preservation of DNA. Analysis of all informative SNPs in the genomes of the participants on a specific microarray chip. Statistical analysis of the results.

Expected results: Verification of the loci and putative genes, associated with the appearance of PCOS.

Importance: Elucidation of the specific genes underlying the pathology of PCOS. Probable implications to Medicine: Paving the way for targeted treatment of the problems, associated with PCOS, based on the clear knowledge of its underlying cause(s).


Description:

1. Working Hypothesis The recent trend in GWA has been the comparison of large numbers of DNA samples from affected individuals and large pools of unrelated individuals (Wellcome Trust Case Control Consortium). Whenever the control group came from family members, the number of patients needed to be sampled has been consistently smaller (Dempfle a et al 2006; The Japanese Schizophrenia Sib-Pair Linkage Group 2005), due to less degrees of freedom in the statistical analysis (Chen WM & Abecasis GR 2007).

2. Specific Aims

1. What are the specific informative SNPs, associated with PCOD?

2. What are the specific genes located in the vicinity of these SNPs, which could contribute to the development of the clinical syndrome? Detailed description of the proposed research Clinical data collection and patient recruitment Patients

Women will be diagnosed as suffering from PCOD based on the Rotterdam criteria ():

1. Oligo- and/or anovulation

2. Clinical and/or biochemical signs of hyperandrogenism

3. Polycystic ovaries, and exclusion of other aetiologies (congenital adrenal hyperplasias, androgen-secreting tumours, Cushing's syndrome) Routine testing of serum levels for the relevant sex hormones will be performed at the 3rd day of the menstrual cycle. Glucose and insulin levels will be measured at the fasting state. The individual data collection page is presented as Appendix 1.

Controls Sisters, mothers, fathers, aunts and grandmothers of affected women will be asked to disclose their relevant clinical history and donate a single blood test for both DNA extraction and hormonal tests, which will be taken at the 3rd day of menstruation, where applicable.

The population that is served by Mayanei Hayeshua hospital is characterized by a short generation interval, due to the mean early age at marriage and the desire to bear children right after marriage. This should allow the formation of genealogy trees that are very informative.

Data security and terms of use of samples Recruitment of family members will be only through the index cases, and each participant will receive a complete explanation of possible personal implication of the study results to herself and family (none). Overall, all included women, patients and family members alike, will be notified as to the secrecy of the data and its use only for the declared purpose of research. They will also be made aware that no personal benefit or harm can be derived from this data to them. In addition, all participants will be informed that if in the future there will arise a new reason to re-analyze their samples, a specific address will be made to each and every one of them to obtain a new permission for this use. Upon request each participant will receive a full explanation of the storage system and the hierarchy of responsibility for the samples and data security.

3. Compliance to the definition of a feasibility study The funds requested herein are meant to enable the formation of DNA bank and family trees, which in turn will serve as the basis for an application to receive the full funding for whole genome analysis, from larger funding resources. Towards this we have teamed up with the future participants of a worldwide consortium on this topic (letter of intention from Bart Fauser, the leading person of this consortium, is attached). Our most pronounced advantage within the consortium, is the availability of multigenerational families, members of which we treat in Bnei Brak.

4. Potential Implications to Medicine and contribution of the expected outcome to society Paving the way for targeted treatment of the problems, associated with PCOS, based on the clear knowledge of its underlying cause(s).


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 1500
Est. completion date
Est. primary completion date
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group N/A and older
Eligibility Inclusion Criteria:

- A clinical and laboratory diagnosis of the polycystic ovary syndrome (cases). Female family members of index cases, up to a great grandmother and fathers of index cases.

Exclusion Criteria:

Study Design

Observational Model: Family-Based, Time Perspective: Prospective


Locations

Country Name City State
Israel Department of Obstetrics and Gynecology, Maaynei Hayeshua Medical Center Bnei Brak

Sponsors (1)

Lead Sponsor Collaborator
Maaynei Hayesha Medical Center

Country where clinical trial is conducted

Israel, 

See also
  Status Clinical Trial Phase
Completed NCT03142633 - MicroRNA as Biomarkers for Development of Metabolic Syndrome in Women With Polycystic Ovary Syndrome
Completed NCT06158932 - A Single Group Study to Evaluate the Effects of a Myo-Inositol and D-Chiro Inositol Supplement on Symptoms Associated With Polycystic Ovary Syndrome and Hormone Imbalance N/A
Completed NCT03644524 - Heat Therapy and Cardiometabolic Health in Obese Women N/A
Active, not recruiting NCT02500147 - Metformin for Ectopic Fat Deposition and Metabolic Markers in Polycystic Ovary Syndrome (PCOS) Phase 4
Completed NCT04932070 - Berberine and Polycystic Ovary Syndrome N/A
Suspended NCT03652987 - Endocrine and Menstrual Disturbances in Women With Polycystic Ovary Syndrome (PCOS)
Completed NCT03480022 - Liraglutide 3mg (Saxenda) on Weight, Body Composition, Hormonal and Metabolic Parameters in Obese Women With PCOS Phase 3
Active, not recruiting NCT03043924 - Functional Study of the Hypothalamus in Magnetic Resonance Imaging (MRI) in Polycystic Ovary Syndrome (PCOS) N/A
Completed NCT05246306 - Aerobic Capacity and Physical Fitness Level of Adolescents With PCOS
Completed NCT05981742 - Effects of Combined Metformin and Cabergoline in Comparison With Metformin Only Therapy on Ovarian and Hormonal Activities in Iraqi Patients With PCOS Phase 2
Completed NCT05702957 - Letrozole vs Clomiphene Citrate for Induction of Ovulation in Women With Polycystic Ovarian Syndrome Phase 2/Phase 3
Completed NCT05029492 - Effect of Visceral Manipulation on PCOS N/A
Not yet recruiting NCT02255578 - Endobarrier Treatment in Women With PCOS Phase 3
Completed NCT02924025 - Motivational Interviewing as an Intervention for PCOS N/A
Not yet recruiting NCT00883259 - Metformin and Gestational Diabetes in High-risk Patients: a RCTs Phase 4
Withdrawn NCT01638988 - Clomifene Citrate Versus Metformin in First-line Treatment of Infertility in Patients With Polycystic Ovary Syndrome and a Resistance to Insulin Phase 3
Completed NCT02098668 - Mathematical Model for the Human Menstrual Cycle, Endocrinological Diseases and Fertility Treatment-PAEON N/A
Completed NCT01462864 - Development of a Structured Education Programme for Women With Polycystic Ovary Syndrome N/A
Recruiting NCT01431352 - Letrozole Versus Chinese Herbal Medicine on Polycystic Ovary Syndrome (PCOS) N/A
Completed NCT00989781 - Mechanisms of Increased Androgen Production Among Women With Polycystic Ovary Syndrome N/A