Bone Mineral Density and Subsequent Cancer Risk
2 other identifiers
observational
15,595
1 country
1
Brief Summary
Recent cohort studies demonstrated reduced breast cancer risks among women with a history of fractures or low bone mineral density (BMD). In the Study of Osteoporotic Fractures, each standard deviation increase in distal radius BMD was associated with a 50% increased risk over three years of follow-up, while in the Framingham study, women in the highest quartile of metacarpal bone mass had a 3.5-fold higher risk than women in the lowest quartile. The impact of the severity and timing of bone loss on risk has not yet been investigated, and the extent to which other risk factors (family history, anthropometric factors, physical activity, and exogenous hormones) modify the relationship with BMD is unknown. To elaborate on these research questions, we are conducting a follow-up study of 22,695 postmenopausal women who volunteered for the Fracture Intervention Trial (FIT), a trial of the bone-enhancing drug alendronate. This large cohort includes extensive baseline information on major breast cancer risk factors, and thus is ideal for evaluating potential interactions with BMD and the effects of BMD on other cancer sites. Endometrial cancer has been reported to occur more frequently among women with a history of fracture, but no previous studies have specifically investigated its relationship to BMD. We are investigating whether BMD of the proximal femur predicts breast cancer risk; whether breast cancer risk factors among postmenopausal women modify the relationship with BMD; whether BMD predicts endometrial or other cancers; and whether measurable biomarkers offer further etiologic clues about BMD and cancer risk. We have contacted the surviving members of FIT to ascertain incident cancers. Risk factors and fracture history are being updated through a self-administered questionnaire. To supplement the serum samples collected at baseline, we are using a nested case-control study approach to collect buccal cell specimens, which may be useful for measuring a variety of biomarkers, including endogenous hormones and genetic polymorphisms involved in either bone growth (e.g., vitamin D receptor) or hormone metabolism (e.g., CYP17, COMT). Retrieval of operative and pathology reports is being used to validate self-reported cancers. The social security numbers and contacts names provided by FIT participants when they completed the baseline questionnaire are facilitating comprehensive follow-up and a National Death Index search for those who cannot be located. The baseline data, the established cooperation of this study population, and the collection of additional biospecimens should enable this study to answer important questions about BMD in breast and endometrial cancers.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Apr 2000
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 7, 2000
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2004
CompletedFirst Submitted
Initial submission to the registry
June 19, 2006
CompletedFirst Posted
Study publicly available on registry
June 21, 2006
CompletedStudy Completion
Last participant's last visit for all outcomes
March 26, 2020
CompletedMarch 30, 2020
March 1, 2020
4.7 years
June 19, 2006
March 27, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Incident cancer diagnosis
breast, endometrial, ovarian, colorectal
Through December 2003
Study Arms (1)
FIT Participants
Eligibility Criteria
The B FIT study included 15,595 of the 22,695 who were screened for participation in the Fracture Intervention Trial (FIT), a randomized clinical trial originally designed to test whether alendronate, a bispohosphonate, would reduce the rate of fractures in women with low bone mineral density (Black et al. 1993). The FIT clinical trial (1992-1998) enrolled approximately 6000 volunteers who had low BMD. The B FIT follow-up study includes all women (regardless of baseline BMD) who volunteered for FIT. In 1992-1993, postmenopausal women (ages 55-80) completed an extensive questionnaire, donated a baseline blood sample, underwent a bone mineral density scan, and provided clinical examination data. As part of the B FIT study, these women were followed (median 10.3 years) to ascertain incident cancer outcomes and incident fractures through the period of 2001-2004.
You may qualify if:
- Women previously enrolled in FIT and provided informed consent.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National Cancer Institute (NCI), 9000 Rockville Pike
Bethesda, Maryland, 20892, United States
Related Publications (2)
Kuller LH, Cauley JA, Lucas L, Cummings S, Browner WS. Sex steroid hormones, bone mineral density, and risk of breast cancer. Environ Health Perspect. 1997 Apr;105 Suppl 3(Suppl 3):593-9. doi: 10.1289/ehp.97105s3593.
PMID: 9168001BACKGROUNDNewcomb PA, Trentham-Dietz A, Egan KM, Titus-Ernstoff L, Baron JA, Storer BE, Willett WC, Stampfer MJ. Fracture history and risk of breast and endometrial cancer. Am J Epidemiol. 2001 Jun 1;153(11):1071-8. doi: 10.1093/aje/153.11.1071.
PMID: 11390325BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Britton L Trabert, Ph.D.
National Cancer Institute (NCI)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 19, 2006
First Posted
June 21, 2006
Study Start
April 7, 2000
Primary Completion
December 31, 2004
Study Completion
March 26, 2020
Last Updated
March 30, 2020
Record last verified: 2020-03