Decision-making Regarding Prophylactic Mastectomy and Oophorectomy in Women Seeking Genetic Counseling and Testing for BRCA1/2 Mutations

Study Overview
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Brief Summary
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The purpose of this study is to learn more about women's decision to undergo prophylactic surgery. This is removal of healthy organs in order to reduce risk of cancer. This study will help us to understand what makes women decide whether or not to have this kind of surgery.

Detailed Description
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For women with a strong family history of breast/ovarian cancer, few options exist for primary prevention of these cancers other than prophylactic surgery, or surgical removal of noncancerous organs in order to prevent occurrence of the disease. The primary aim of the study is to describe the stages of intention to undergo prophylactic mastectomy and/or oophorectomy among women seeking genetic testing for inherited BRCA1 and BRCA2 mutations, and to identify factors that influence stages of intention regarding prophylactic surgery. To achieve these aims, 626 women undergoing genetic counseling and testing for inherited breast ovarian cancer risk will be assessed before their first genetic counseling session and three times (1 week, 6 months and 12 months) in the year following notification of their genetic test results.

Official Title
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Decision-making Regarding Prophylactic Mastectomy and Oophorectomy in Women Seeking Genetic Counseling and Testing for BRCA1/2 Mutations

Conditions
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Breast Cancer, Ovarian Cancer

Intervention / Treatment
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* Behavioral: telephone interviews


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Female gender age 25 and above a personal or family history of breast and/or ovarian cancer showing clinical features associated with increased risk of carrying a BRCA1/2 mutation (e.g., breast and ovarian cancer on the same side of the family, early age of onset, multiple primaries in the same individual) or having a first-degree relative with a known BRCA1 or BRCA2 mutation. Exclusion Criteria: Male gender age less than 25 years unable to provide meaningful informed consent due to physical, cognitive or psychiatric disability non-English speaking

Ages Eligible for Study
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Minimum Age: 25 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| 1<br>Women with a strong family history of breast cancer. | Behavioral: telephone interviews<br>* Telephone interviews take place before the first counseling appointment (baseline), and 1 week, 6 months and 12 months post-notification of the individual's genetic test results. In the event that a participant chooses not to undergo genetic testing, follow-up interviews will take place 1 month, 6 months and 12 months after the initial counseling visit.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Primary outcome of the study is stage of intention to undergo prophylactic surgery. Outcome variable consists of 6 rank-ordered, qualitatively distinct stages (see Measures) ranging from Precontemplation (no intention) to Action (intention carried out). |  | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To determine the relative contributions of sociodemographic, medical, and psychosocial factors to stage of intention regarding prophylactic mastectomy and/or oophorectomy. |  | conclusion of the study | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Prophylactic Mastectomy, Prophylactic Oophorectomy