Browsing Clinical Studies by author "Dowsett, Mitch"
Now showing items 1-14 of 14
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11 years' follow-up of trastuzumab after adjuvant chemotherapy in HER2-positive early breast cancer: final analysis of the HERceptin Adjuvant (HERA) trial.
Cameron, D; Piccart-Gebhart, MJ; Gelber, RD; Procter, M; Goldhirsch, A; et al. (2017-03)Background Clinical trials have shown that trastuzumab, a recombinant monoclonal antibody against HER2 receptor, significantly improves overall survival and disease-free survival in women with HER2-positive early breast ... -
20-Year Risks of Breast-Cancer Recurrence after Stopping Endocrine Therapy at 5 Years.
Pan, H; Gray, R; Braybrooke, J; Davies, C; Taylor, C; et al. (MASSACHUSETTS MEDICAL SOC, 2017-11-09)BACKGROUND: The administration of endocrine therapy for 5 years substantially reduces recurrence rates during and after treatment in women with early-stage, estrogen-receptor (ER)-positive breast cancer. Extending such ... -
Assessment of Ki67 in Breast Cancer: Updated Recommendations from the International Ki67 in Breast Cancer Working Group.
Nielsen, TO; Leung, SCY; Rimm, DL; Dodson, A; Acs, B; et al. (2020-12-28)Ki67 immunohistochemistry, commonly used as a proliferation marker in breast cancer, has limited value for treatment decisions due to questionable analytical validity. The International Ki67 Working Group (IKWG) consensus ... -
Autoimmunity and Benefit from Trastuzumab Treatment in Breast Cancer: Results from the HERA Trial.
Sonnenblick, A; Bailey, A; Uziely, B; Untch, M; Smith, I; et al. (2019-02)BACKGROUND/AIM:This study sought to determine whether an autoimmune background could identify patients with HER2-positive early breast cancer (EBC) who derive differential benefit from primary adjuvant trastuzumab-based ... -
Comparative Efficacy and Safety of Adjuvant Letrozole Versus Anastrozole in Postmenopausal Patients With Hormone Receptor-Positive, Node-Positive Early Breast Cancer: Final Results of the Randomized Phase III Femara Versus Anastrozole Clinical Evaluation (FACE) Trial.
Smith, I; Yardley, D; Burris, H; De Boer, R; Amadori, D; et al. (2017-04)Purpose The Letrozole (Femara) Versus Anastrozole Clinical Evaluation (FACE) study compared the efficacy and safety of adjuvant letrozole versus anastrozole in postmenopausal patients with hormone receptor (HR) -positive ... -
Early Enrichment of ESR1 Mutations and the Impact on Gene Expression in Presurgical Primary Breast Cancer Treated with Aromatase Inhibitors.
Leal, MF; Haynes, BP; Schuster, E; Yeo, B; Afentakis, M; et al. (2019-12)PURPOSE:To investigate the presence of ESR1 mutations in primary estrogen-receptor-positive (ER+) breast cancer treated with extended (>4 weeks) neoadjuvant (presurgical) aromatase inhibitor (NAI) therapy and to identify ... -
Early enrichment of ESR1 mutations and the impact on gene expression in primary breast cancer treated with aromatase inhibitors in the pre-surgical setting
Dowsett, M; Ferreira Leal, M; Haynes, B; Schuster, E; Yeo, B; et al. -
Evidence-based guidelines for managing patients with primary ER+ HER2- breast cancer deferred from surgery due to the COVID-19 pandemic.
Dowsett, M; Ellis, MJ; Dixon, JM; Gluz, O; Robertson, J; et al. (2020-01)Many patients with ER+ HER2- primary breast cancer are being deferred from surgery to neoadjuvant endocrine therapy (NeoET) during the COVID-19 pandemic. We have collated data from multiple international trials of presurgical ... -
Immunohistochemical Phenotype of Breast Cancer during 25-Year Follow-up of the Royal Marsden Tamoxifen Prevention Trial.
Detre, SI; Ashley, S; Mohammed, K; Smith, IE; Powles, TJ; et al. (2017-03)The randomized, double-blinded Royal Marsden Tamoxifen Breast Cancer Prevention Trial in healthy high-risk women started in 1986 and is still blinded. Eligible participants (<i>n</i> = 2,471) were randomly assigned to ... -
Increasing the dose intensity of chemotherapy by more frequent administration or sequential scheduling: a patient-level meta-analysis of 37 298 women with early breast cancer in 26 randomised trials.
Early Breast Cancer Trialists' Collaborative Group (EBCTCG), (ELSEVIER SCIENCE INC, 2019-04-06)BACKGROUND: Increasing the dose intensity of cytotoxic therapy by shortening the intervals between cycles, or by giving individual drugs sequentially at full dose rather than in lower-dose concurrent treatment schedules, ... -
Long-term outcomes for neoadjuvant versus adjuvant chemotherapy in early breast cancer: meta-analysis of individual patient data from ten randomised trials.
Early Breast Cancer Trialists' Collaborative Group (EBCTCG), (ELSEVIER SCIENCE INC, 2018-01-01)BACKGROUND: Neoadjuvant chemotherapy (NACT) for early breast cancer can make breast-conserving surgery more feasible and might be more likely to eradicate micrometastatic disease than might the same chemotherapy given after ... -
Novel 18-gene signature for predicting relapse in ER-positive, HER2-negative breast cancer.
Buus, R; Yeo, B; Brentnall, AR; Klintman, M; Cheang, MCU; et al. (2018-09-04)Background Several prognostic signatures for early oestrogen receptor-positive (ER+) breast cancer have been established with a 10-year follow-up. We tested the hypothesis that signatures optimised for 0-5-year and 5-10-year ... -
Plasma ESR1 Mutations and the Treatment of Estrogen Receptor-Positive Advanced Breast Cancer.
Fribbens, C; O'Leary, B; Kilburn, L; Hrebien, S; Garcia-Murillas, I; et al. (2016-09)Purpose ESR1 mutations are selected by prior aromatase inhibitor (AI) therapy in advanced breast cancer. We assessed the impact of ESR1 mutations on sensitivity to standard therapies in two phase III randomized trials that ... -
Relationship between IHC4 score and response to neo-adjuvant chemotherapy in estrogen receptor-positive breast cancer.
Sheri, A; Smith, IE; Hills, M; Jones, RL; Johnston, SR; et al. (2017-07)Aims To determine whether IHC4 score assessed on pre-treatment core biopsies (i) predicts response to neo-adjuvant chemotherapy in ER-positive (ER+) breast cancer; (ii) provides more predictive information than Ki67 ...