An international multicentre study of tamoxifen versus placebo in women at increased risk of breast cancer
试验速览
- 阶段
- 未知
- 状态
- 已完成
- 发起方
- 入组人数
- 7,000
研究概览
简要总结
2002 results in: http://www.ncbi.nlm.nih.gov/pubmed/12243915 2003 results in: https://www.ncbi.nlm.nih.gov/pubmed/14659350 2004 results in: https://www.ncbi.nlm.nih.gov/pubmed/15100340 2006 results in: https://www.ncbi.nlm.nih.gov/pubmed/16921052 2007 results in: https://www.ncbi.nlm.nih.gov/pubmed/17312304 2009 results in: https://www.ncbi.nlm.nih.gov/pubmed/19910376 2011 results in: https://www.ncbi.nlm.nih.gov/pubmed/21483019 2012 results in: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3394993/ 2013 substudy results in: http://www.ncbi.nlm.nih.gov/pubmed/22832202 2014 placebo arm results in: http://www.ncbi.nlm.nih.gov/pubmed/25292294 2015 extended long-term follow-up results in: http://www.ncbi.nlm.nih.gov/pubmed/25497694 2016 results in: https://www.ncbi.nlm.nih.gov/pubmed/27400912 2017 results in: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455424/ 2017 results in: https://www.ncbi.nlm.nih.gov/pubmed/28661758 2021 results in https://pubmed.ncbi.nlm.nih.gov/33656637/ (added 04/03/2021)
研究设计
- 研究类型
- Interventional
入排标准
- 性别
- Female
入选标准
- •To be eligible, women must satisfy at least one of the entry criteria listed below:
- •1. A mammogram must have been taken within the last year indicating no malignant disease
- •2. A signed consent form must have been obtained
- •Entry criteria:
- •The entry criteria was based on a relative risk of at least two-fold for women aged 45-70 years, four-fold for women aged 40-44 years and ten-fold for women aged 35-39 years.
- •Age 45-70 years:
- •1. First degree relative who developed breast cancer at age 50 or less
- •2. First degree relative who developed bilateral breast cancer
- •3. Two or more first or second degree relatives who developed breast cancer
- •4. Nulliparous and a first degree relative who developed breast cancer
- •5. Benign biopsy with proliferative disease and a first degree relative who developed breast cancer
- •6. Lobular carcinoma in situ
- •7. Atypical ductal or lobular hyperplasia in a benign lesion
- •8. Women at high risk who do not fit into the above categories (risk equivalent)*
- •* These women must have clearly apparent family history indicating at least two fold increased risk of breast cancer.
- •Age 40-44 years
- •8. Two or more first or second degree relatives who developed breast cancer at age 50 or less
- •9. First degree relative with bilateral breast cancer who developed the first breast cancer at age 50 or less
- •10. Nulliparous and a first degree relative who developed breast cancer at age 40 or less
- •11. Benign biopsy with proliferative disease and a first degree relative who developed breast cancer at age 40 or less
- •12. Lobular carcinoma in situ
- •13. Atypical ductal or lobular hyperplasia in a benign lesion
- •14. Women at high risk who do not fit into the above categories (risk equivalent)*
- •* These women must have clearly apparent family history indicating at least four fold increased risk of breast cancer.
- •Age 35-39 years:
- •15. Two or more first degree relatives who developed breast cancer at age 50 or less
- •16. First degree relative with bilateral breast cancer who developed the first breast cancer at age 40 or less
- •17. Lobular carcinoma in situ
- •18. Women at high risk who do not fit into the above categories (risk equivalent)*
- •* These women must have clearly apparent family history indicating at least ten fold increased risk of breast cancer.
排除标准
- •1. Pregnant, or at pregnancy risk. If necessary, pre and peri menopausal women must use non-hormonal contraception during the trial
- •2. Any previous cancer (except non-melanoma skin cancer or in situ cancer of the cervix)
- •3. Life expectancy of less than 10 years or other medical condition more serious than the risk of breast cancer
- •4. Psychologically and physically unsuitable for five years tamoxifen or placebo therapy
- •5. Current treatment with anti-coagulants
- •6. Previous deep vein thrombosis or pulmonary embolus
- •7. Current tamoxifen use
