Clinical Trial Details
— Status: Completed
Administrative data
| NCT number |
NCT00035659 |
| Other study ID # |
996 |
| Secondary ID |
R01HL067128 |
| Status |
Completed |
| Phase |
|
| First received |
|
| Last updated |
|
| Start date |
April 2002 |
| Est. completion date |
March 2008 |
Study information
| Verified date |
October 2015 |
| Source |
Rush University Medical Center |
| Contact |
n/a |
| Is FDA regulated |
No |
| Health authority |
|
| Study type |
Observational
|
Clinical Trial Summary
To study the natural history of the accumulation of intra-abdominal fat as women progress
through the menopause.
Description:
BACKGROUND:
Menopause alters the risk for a variety of chronic diseases, including cardiovascular
disease, which is the number one cause of mortality in older women. While the associations
between menopause, increased total and intra-abdominal fat (IAF), and risk for coronary
disease are well established, prospective studies describing the accumulation of IAF, the
association with risk factors, and potential mechanistic aspects, are still lacking. This
study has the potential to provide important information on the trajectory of IAF
accumulation across the menopausal transition in minority and non-minority women.
DESIGN NARRATIVE:
The prospective study will be conducted on an intact biracial cohort of 868 women (419
African Americans; 449 Caucasians) who are participating in a larger study (Women in the
Southside Health [WISH] Project) of women undergoing the menopausal transition. This is a
population-based cohort that was randomly selected from an existing census with a 72 percent
participation rate, approximately equal distribution of socioeconomic status within the
African American and Caucasian subgroups, and a dropout rate of only 1 percent/year. As part
of the larger study, this cohort undergoes annual exams in which a variety of cardiovascular,
hormonal, and lifestyle factors are tracked. These annual measurements consisting of a large
number of relevant covariates, including demographics, anthropometrics, serum lipids, blood
pressures, insulin, glucose, hormones, lifestyle, health and psychosocial status will be
available from the parent study. For this study, two additional clinical tests will be added
to the battery at the fourth or fifth annual exam for the 536 women who are expected to be
eligible by virtue of not having had a hysterectomy or begun taking hormone therapy. The two
tests will be a computed tomography scan for the assessment of intra-abdominal fat, and a
dual energy X-ray absorptiometry (DEXA) scan for the assessment of total body fat. These
tests will be repeated on an annual basis for the next three years. By the end of the study,
it is projected that 462 transitions in menopausal status will have taken place. Random
effects models will be used to estimate longitudinal changes in level and rate of
intra-abdominal fat as one moves from one menopausal status to another.