Journal
GENETICS IN MEDICINE
Volume 20, Issue 9, Pages 985-994Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/gim.2017.231
Keywords
BRCA testing; breast cancer; cascade testing; cost-effectiveness; ovarian cancer
Categories
Funding
- National Health and Medical Research Council [GNT1121232]
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Purpose: To evaluate the cost-effectiveness of BRCA testing in women with breast cancer, and cascade testing in family members of BRCA mutation carriers. Methods: A cost-effectiveness analysis was conducted using a cohort Markov model from a health-payer perspective. The model estimated the long-term benefits and costs of testing women with breast cancer who had at least a 10% pretest BRCA mutation probability, and the cascade testing of first-and second-degree relatives of women who test positive. Results: Compared with no testing, BRCA testing of affected women resulted in an incremental cost per quality-adjusted life-year (QALY) gained of AU$ 18,900 (incremental cost AU $ 1,880; incremental QALY gain 0.10) with reductions of 0.04 breast and 0.01 ovarian cancer events. Testing affected women and cascade testing of family members resulted in an incremental cost per QALY gained of AU$ 9,500 compared with testing affected women only (incremental cost AU$ 665; incremental QALY gain 0.07) with additional reductions of 0.06 breast and 0.01 ovarian cancer events. Conclusion: BRCA testing in women with breast cancer is cost-effective and is associated with reduced risk of cancer and improved survival. Extending testing to cover family members of affected women who test positive improves cost-effectiveness beyond restricting testing to affected women only.
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