Abstract | BACKGROUND: PATIENTS AND METHODS: From September 2000 to December 2003, 80 women were recruited for treatment with exemestane 25 mg once daily for 4 months. The primary end-point was the clinical response rate according the WHO criteria; the secondary end-points included toxicity and the number of patients who qualified for breast conserving surgery at the end of treatment, comparability of evaluation methods for response, potential alterations of hormone receptor and Her2/neu status during treatment. RESULTS: On an intention to evaluate analysis, according to the prespecified criteria the overall clinical objective response rate was 34%, the pCR rate was 3% and the rate of breast conserving surgery was 76%. When sonographic and mammographic longitudinal measurements were included in patients with missing palpation data, response rates were 38% and 41%, respectively. The tumor response was independent of the Her2/neu status which remained unchanged during treatment. In contrast, while the ER expression remained unaltered, downregulation of the PgR was observed. The treatment was well tolerated with no grade 3 and 4 toxicities except gastrointestinal (one grade 3 case) and hot flushes (two grade 3 cases). CONCLUSION:
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Authors | Brigitte Mlineritsch, Christoph Tausch, Christian Singer, Gero Luschin-Ebengreuth, Raimund Jakesz, Ferdinand Ploner, Michael Stierer, Elisabeth Melbinger, Christian Menzel, Andrea Urbania, Michael Fridrik, Günther Steger, Peter Wohlmuth, Michael Gnant, Richard Greil, Austrian Breast, Colorectal Cancer Study Group (ABCSG) |
Journal | Breast cancer research and treatment
(Breast Cancer Res Treat)
Vol. 112
Issue 1
Pg. 203-13
(Nov 2008)
ISSN: 0167-6806 [Print] Netherlands |
PMID | 18158620
(Publication Type: Clinical Trial, Phase II, Journal Article, Multicenter Study)
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Chemical References |
- Androstadienes
- Antineoplastic Agents
- Receptors, Estrogen
- Receptors, Progesterone
- ERBB2 protein, human
- Receptor, ErbB-2
- exemestane
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Topics |
- Aged
- Aged, 80 and over
- Androstadienes
(therapeutic use)
- Antineoplastic Agents
(therapeutic use)
- Breast Neoplasms
(drug therapy, metabolism, pathology)
- Carcinoma, Ductal, Breast
(drug therapy, metabolism, pathology)
- Female
- Humans
- Middle Aged
- Postmenopause
- Prognosis
- Receptor, ErbB-2
(metabolism)
- Receptors, Estrogen
(metabolism)
- Receptors, Progesterone
(metabolism)
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