Abstract
Objective: To evaluate the risk of endometrial cancer in women who carry a deleterious mutation in the BRCA1 or BRCA2 genes. Patients and methods: Women known to carry a BRCA1 or BRCA2 mutation, aged 45 to 70, were identified from an international registry and were followed prospectively. A total of 857 women completed a baseline questionnaire and one or more follow-up questionnaires. Study subjects were followed until diagnosis of endometrial cancer, ovarian cancer, death or the date of completion of the last questionnaire. The expected number of endometrial cancers was calculated using age and country-specific incidence rates. Results: After an average follow-up period of 3.3 years, six women were diagnosed with endometrial cancer, compared to 1.13 cancers expected (SIR = 5.3, p = 0.0011). Four of these six patients used tamoxifen in the past. The risk among women who were never exposed to tamoxifen treatment was not significantly elevated (SIR = 2.7, p = 0.17), but among the 226 participants who had used tamoxifen (220 as treatment and six for the primary prevention of breast cancer) the relative risk for endometrial cancer was 11.6 (p = 0.0004). Conclusion: The main contributor to the increased risk of endometrial cancer among BRCA carriers is tamoxifen treatment for a previous breast cancer. The risk and benefits of prophylactic hysterectomy should be discussed with women with a BRCA mutation considering tamoxifen therapy.
| Original language | English |
|---|---|
| Pages (from-to) | 7-10 |
| Number of pages | 4 |
| Journal | Gynecologic Oncology |
| Volume | 104 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2007 |
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All Science Journal Classification (ASJC) codes
- Obstetrics and Gynecology
- Oncology
Cite this
The risk of endometrial cancer in women with BRCA1 and BRCA2 mutations. A prospective study. / Beiner, Mario E.; Finch, Amy; Rosen, Barry; Lubinski, Jan; Moller, Pal; Ghadirian, Parviz; Lynch, Henry T.; Friedman, Eitan; Sun, Ping; Narod, Steven A.
In: Gynecologic Oncology, Vol. 104, No. 1, 01.2007, p. 7-10.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The risk of endometrial cancer in women with BRCA1 and BRCA2 mutations. A prospective study
AU - Beiner, Mario E.
AU - Finch, Amy
AU - Rosen, Barry
AU - Lubinski, Jan
AU - Moller, Pal
AU - Ghadirian, Parviz
AU - Lynch, Henry T.
AU - Friedman, Eitan
AU - Sun, Ping
AU - Narod, Steven A.
PY - 2007/1
Y1 - 2007/1
N2 - Objective: To evaluate the risk of endometrial cancer in women who carry a deleterious mutation in the BRCA1 or BRCA2 genes. Patients and methods: Women known to carry a BRCA1 or BRCA2 mutation, aged 45 to 70, were identified from an international registry and were followed prospectively. A total of 857 women completed a baseline questionnaire and one or more follow-up questionnaires. Study subjects were followed until diagnosis of endometrial cancer, ovarian cancer, death or the date of completion of the last questionnaire. The expected number of endometrial cancers was calculated using age and country-specific incidence rates. Results: After an average follow-up period of 3.3 years, six women were diagnosed with endometrial cancer, compared to 1.13 cancers expected (SIR = 5.3, p = 0.0011). Four of these six patients used tamoxifen in the past. The risk among women who were never exposed to tamoxifen treatment was not significantly elevated (SIR = 2.7, p = 0.17), but among the 226 participants who had used tamoxifen (220 as treatment and six for the primary prevention of breast cancer) the relative risk for endometrial cancer was 11.6 (p = 0.0004). Conclusion: The main contributor to the increased risk of endometrial cancer among BRCA carriers is tamoxifen treatment for a previous breast cancer. The risk and benefits of prophylactic hysterectomy should be discussed with women with a BRCA mutation considering tamoxifen therapy.
AB - Objective: To evaluate the risk of endometrial cancer in women who carry a deleterious mutation in the BRCA1 or BRCA2 genes. Patients and methods: Women known to carry a BRCA1 or BRCA2 mutation, aged 45 to 70, were identified from an international registry and were followed prospectively. A total of 857 women completed a baseline questionnaire and one or more follow-up questionnaires. Study subjects were followed until diagnosis of endometrial cancer, ovarian cancer, death or the date of completion of the last questionnaire. The expected number of endometrial cancers was calculated using age and country-specific incidence rates. Results: After an average follow-up period of 3.3 years, six women were diagnosed with endometrial cancer, compared to 1.13 cancers expected (SIR = 5.3, p = 0.0011). Four of these six patients used tamoxifen in the past. The risk among women who were never exposed to tamoxifen treatment was not significantly elevated (SIR = 2.7, p = 0.17), but among the 226 participants who had used tamoxifen (220 as treatment and six for the primary prevention of breast cancer) the relative risk for endometrial cancer was 11.6 (p = 0.0004). Conclusion: The main contributor to the increased risk of endometrial cancer among BRCA carriers is tamoxifen treatment for a previous breast cancer. The risk and benefits of prophylactic hysterectomy should be discussed with women with a BRCA mutation considering tamoxifen therapy.
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UR - http://www.scopus.com/inward/citedby.url?scp=33845968075&partnerID=8YFLogxK
U2 - 10.1016/j.ygyno.2006.08.004
DO - 10.1016/j.ygyno.2006.08.004
M3 - Article
VL - 104
SP - 7
EP - 10
JO - Gynecologic Oncology
JF - Gynecologic Oncology
SN - 0090-8258
IS - 1
ER -