Viewing Study NCT00339547



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Last Modification Date: 2024-10-26 @ 9:25 AM
Study NCT ID: NCT00339547
Status: COMPLETED
Last Update Posted: 2019-07-25
First Post: 2006-06-19

Brief Title: Risk Factors for Uterine Fibroids A Case Control Study
Sponsor: National Institute of Environmental Health Sciences NIEHS
Organization: National Institutes of Health Clinical Center CC

Study Overview

Official Title: Risk Factors for Uterine Fibroids A Case Control Study and Follow-up Amendment to Study Disease Progression
Status: COMPLETED
Status Verified Date: 2019-07-23
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: The proposed study is designed to estimate the proportion of 35-49 year-old women in a large urban health plan who have had fibroids The membership of the health plan is approximately 45 black so estimates for black and white women can be compared Risk factors for the condition will be studied and uterine tissue from women having hysterectomies or myomectomies will be studied to identify genetic hormonal and protein mediators of tumor growth

A randomly selected sample of about 1800 women age 35-49 who are members of the George Washington University Health Plan will be invited to participate Presence of leiomyomas for premenopausal participants with no prior diagnosis of leiomyoma will be determined by an ultrasound examination Presence of leiomyomas for premenopausal women who report a prior diagnosis of fibroids will be determined by ultrasound evidence in their medical record when available and by self-report when not available History of fibroids in postmenopausal women will be based on pathology records for those with surgical menopause and on radiology records or self-report for the small number of naturally postmenopausal women Estimates of the proportion who have or have had fibroids will be compared for blacks and whites

To examine risk factors for leiomyoma we will conduct a case-control analysis Cases will be those women identified with leiomyoma from the random sample supplemented by women in the same age range who have hysterectomies or myomectomies during the study period and hose excised uteri show evidence of fibroids on standard pathology examination Women from the random sample with ultrasound or pathology evidence showing no uterine fibroids will constitute the control group Controls will be compared to cases grouped by size of largest fibroid and grouped by clinical

A telephone interview and self-administered questionnaire will provide information on demographic factors medical history dietary intake reproductive history life style factors and occupationalenvironmental exposures Blood will be collected from premenopausal women to measure lipids insulin and potential susceptibility genes Urine will also be collected from premenopausal women early in their menstrual cycles to measure gonadotropin levels Blood pressure heart rate weight height and waist-to-hip ration will be measured Tissue from surgical specimens will be use by collaborators at NIEHS to measure cell proliferation and apoptosis genetic factors estrogen and progesterone receptor levels protein markers of estrogen action and growth factors
Detailed Description: Uterine leiomyomas are the leading cause of hysterectomy in the United States accounting for over 200000 procedures each year Leiomyoma is a common condition with many tumors being asymptomatic It is not known which women who have fibroids will develop clinical symptoms In 1996-1999 the NIEHS Uterine Fibroid Study enrolled 1245 randomly selected premenopausal women aged 35 to 49 who had been randomly selected from the membership roles of George Washington University Health Plan a large prepaid health plan in Washington DC Slightly over half of the participants were African American Participants were asked about prior diagnoses of uterine leiomyomas and 87 were examined by abdominaltransvaginal ultrasound to screen for uterine leiomyoma Sixty-two percent of the 1245 had either had a prior diagnosis of leiomyoma or had sonogram evidence of the condition

Study Objectives

1 Monitor fibroid-related symptoms over time Two follow-ups over a five-year period
2 Measure the proportion of women who undergo major medical intervention hysteroscopic resection uterine artery embolization laser coagulation myomectomy or hysterectomy
3 Identify risk factors for increased symptom severity
4 Identify risk factors for treatment intervention

Methods Premenopausal participants in the Uterine Fibroid Study 1996-1999 will be recontacted twice during the years 2001 - 2005 to obtain information about leiomyoma-related symptoms and medical or surgical treatments Data will be collected with a computer-assisted telephone interview Medical records of ultrasound or MRI examinations and major medical or surgical interventions will be abstracted to verify medical follow-up and treatment

Significance The presence of leiomyomas can be identified with ultrasound screening when the condition is asymptomatic However no data are available that allow clinicians to predict which women will experience morbidity This longitudinal study will trace disease progression and identify factors related to increased symptom severity and medicalsurgical treatment The findings could then be used to develop a systematic scoring system that can be used to identify women at high risk

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None
Secondary IDs
Secondary ID Type Domain Link
OH95-E-N048 None None None