In an analysis from the IBIS-II prevention trial reported in The Lancet Oncology, Jack Cuzick, PhD, and colleagues found that increasing the ratio of baseline estradiol level to sex hormone–binding globulin (SHBG) was associated with an increased risk of breast cancer in high-risk postmenopausal...
Investigators have found that estrogen levels measured through blood tests may be predictive of which individuals at high risk of breast cancer will benefit from aromatase inhibitors, according to a recent study presented by Cuzick et al at the 2023 San Antonio Breast Cancer Symposium (Abstract...
For postmenopausal women at high risk for developing breast cancer—largely based on family history—anastrozole taken for 5 years maintained a preventive effect for at least an additional 7 years after stopping the drug in the IBIS-II trial, which included nearly 4,000 subjects. Women randomly...
As reported by Jack Cuzick, PhD, and colleagues in The Lancet, blinded follow-up of the IBIS-II trial has shown the continued benefit of anastrozole vs placebo in preventing breast cancer in high-risk postmenopausal women during the 5-year posttreatment period. For the international double-blind...
Jack Cuzick, PhD, of Queen Mary University of London, discusses the substantially greater benefits of anastrozole as compared with tamoxifen in terms of preventing breast cancer, with no increase in fractures or other reported serious side effects (Abstract GS4-04).
A 10-year median follow-up analysis of the IBIS-II trial on the efficacy and safety of the aromatase inhibitor anastrozole for healthy postmenopausal women at increased risk of developing breast cancer has found that the therapy reduced the likelihood of breast cancer incidence by 50% and had few...
Among women enrolled in the International Breast Cancer Intervention Study I (IBIS-I), those who had certain symptoms of menopause—nausea/vomiting and headaches—were significantly less likely to be adherent to the assigned medication 4.5 years after starting the treatment, according to...
Two recently reported phase III trials compared adjuvant anastrozole vs tamoxifen in postmenopausal women with hormone receptor–positive ductal carcinoma in situ. As reported in The Lancet by Margolese et al,1 the National Surgical Adjuvant Breast and Bowel Project (NSABP) B-35 trial, performed in...
Jack Cuzick, PhD, of the Wolfson Institute of Preventive Medicine, discusses abstract S3-07, "16-year long-term follow-up of the IBIS-I breast cancer prevention trial."
At least 12 different genetic tests for prostate cancer are under development. The two tests currently available are Oncotype DX (Genomic Health, Redwood City, California) and Prolaris (Myriad Genetic Laboratories, Salt Lake City). Both tests can identify which low-risk patients are “truly” at low...
Five years of treatment with anastrozole reduced the risk of breast cancer by 53% in postmenopausal women at high risk for developing the disease, according to an analysis of the International Breast Cancer Intervention Study (IBIS)-II trial. Anastrozole reduced the risk of estrogen...
The benefits of tamoxifen as primary prevention of breast cancer are well established. The good news is that the benefits live on, with a protective effect that extends up to 22 years. At a median follow-up of 16 years, women treated with 5 years of tamoxifen enjoyed a 29% reduction in the risk of...
The American Cancer Society has bestowed its highest honor on four individuals and one foundation during the Society’s 2015 Medal of Honor ceremony and celebration dinner in Washington, DC. The Medal of Honor is awarded to those who have made the most valuable contributions and impact in the fight...
Jack Cuzick, PhD, FMedSci, of Queen Mary, University of London, discusses his phase III study on postmenopausal women with DCIS who had similar outcomes whether they took tamoxifen or anastrozole for 5 years after surgery. (Abstract S6-03)
Postmenopausal women with ductal carcinoma in situ (DCIS) had similar outcomes with disease recurrence whether they took tamoxifen or the aromatase inhibitor anastrozole for 5 years after surgery, but women in the two groups had different side effects, according to results from the phase III...
After a median of 16 years of following women at high risk for breast cancer, the International Breast Cancer Intervention Study-I (IBIS-I) trial found that tamoxifen significantly decreased the incidence of all breast cancers, according to data presented at the 2014 San Antonio Breast Cancer...
In the phase III IBIS-II trial, reported in The Lancet, Cuzick et al found that aromatase inhibitor therapy with anastrozole reduced risk of breast cancer in postmenopausal women at high risk of the disease. Study Details In this double-blind trial, 3,864 postmenopausal women aged 40 to 70 years...
Genetic analyses of results from 1,125 postmenopausal women being treated for estrogen-responsive breast cancer have shown that some of them are more likely than others to have a late recurrence of their cancer and might benefit from 10 years of hormone therapy rather than 5 years. Women who had...
Tamoxifen and three similar drugs reduce breast cancer incidence by 38% in women at an increased risk of the disease according to a Cancer Research UK study published in The Lancet today. In the most comprehensive study to date scientists calculate that one breast cancer would be prevented for...