This clinical trial is studying the incidence of cancer in women at increased genetic risk of ovarian cancer. Gathering information about genetic factors in women with an increased risk of ovarian cancer over time may help doctors learn more about the disease and find better methods of treatment and on-going care.
PRIMARY OBJECTIVES: I. To determine the prospective incidence of ovarian cancer, fallopian tube cancer, breast cancer, primary peritoneal cancer, and all cancer among women at increased risk of ovarian cancer, with a special emphasis on women who are known breast cancer susceptibility gene (BRCA)1/2 mutation carriers. II. To develop precise point estimates of these cancer rates among women who have undergone risk-reducing salpingo-oophorectomy and women who have elected screening. III. To compare the cancer rates between these two groups of women. IV. To better characterize the similarities and differences in cancer risk between BRCA mutation-positive families and BRCA mutation-negative/family history-positive families. V. To develop preliminary estimates of overall and cancer-specific mortality, stratified by mutation status (BRCA1-positive, BRCA2-positive, BRCA1/2-negative). OUTLINE: This is a multicenter study. Patients complete the Health Update Questionnaire annually for up to 5 years. The questionnaire focuses specifically on cancer risk, incidence, and mortality. Patients also receive ongoing communication (e.g., periodic newsletters, copies of study-related publications, etc.) to keep them informed regarding study-related research results, new research findings, new research opportunities for which patients may be eligible, and evolving clinical recommendations regarding hereditary breast/ovarian cancer.
Study Type
OBSERVATIONAL
Enrollment
1,916
Prospective incidence of ovarian cancer (including fallopian tube cancer), primary peritoneal cancer, breast cancer, and all cancer
Time frame: Up to 5 years
Ovarian cancer mortality rates
Cox proportional hazards models will be used to compare the incidence rates between the risk-reducing salpingo-oophorectomy (RRSO) and screening groups, adjusting for appropriate covariates. If necessary, modeling will be carried out in order to use non-proportional hazards models.
Time frame: Up to 5 years
Breast cancer mortality rates
Time frame: Up to 5 years
Quality of life
Time frame: Up to 5 years
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