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Accelerated methotrexate, vinblastine, doxorubicin, and cisplatin (AMVAC) as neoadjuvant chemotherapy for patients with muscle-invasive transitional cell carcinoma of the bladder

Blick, Christopher, Hall, Peter, Pwint, Thinn, Al-Terkait, Faisal, Crew, Jeremy, Powles, Thomas, Macaulay, Valentine, Munro, Nicholas, Douglas, David, Kilbey, Neviana, Protheroe, Andrew and Chester, John D. 2012. Accelerated methotrexate, vinblastine, doxorubicin, and cisplatin (AMVAC) as neoadjuvant chemotherapy for patients with muscle-invasive transitional cell carcinoma of the bladder. Cancer 118 (16) , pp. 3920-3927. 10.1002/cncr.26675

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Abstract

BACKGROUND: Meta-analysis data demonstrate a 5% absolute survival benefit for neoadjuvant chemotherapy (NAC) using cisplatin-based combination regimens in the radical treatment of muscle-invasive bladder cancer (MIBC). However, there are no randomized, controlled trial data on the optimum regimen. Accelerated methotrexate, vinblastine, doxorubicin, and cisplatin (AMVAC) is a dose-intense regimen that has the potential to minimize delays to definitive, potentially curative therapy. A retrospective analysis is presented of the efficacy and toxicity of AMVAC as NAC in patients with MIBC and its impact on the patient pathway. METHODS: Eighty consecutive patients with MIBC were treated with AMVAC as NAC by 2 UK multidisciplinary uro-oncology teams. Three or 4 cycles of AMVAC (methotrexate 30 mg/m2, vinblastine 3 mg/m2, doxorubicin 30 mg/m2, and cisplatin 70 mg/m2) were given at 2-week intervals, with granulocyte colony-stimulating factor support, prior to either radical surgery or radical radiotherapy. RESULTS: All planned cycles of chemotherapy were completed, without dose reduction or delay in 84% of patients. All 80 patients subsequently received their planned definitive therapy. Grade 3/4 toxicities were seen in 26% of the 42% of patients for whom toxicity data are available, including 12% grade 3/4 neutropenia. Pathological complete response to AMVAC was seen in 43% of 60 surgical patients. Objective radiological local response was seen in 83% of 57 evaluable patients. Two-year disease-free and overall survival were 65% and 77%, respectively. CONCLUSIONS: AMVAC is safe and appears to be a well-tolerated and effective NAC regimen for MIBC. It minimizes delays to definitive treatment and produces excellent pathological and radiological response rates. It is an appropriate comparator for future randomized trials. Cancer 2012. © 2012 American Cancer Society.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
Uncontrolled Keywords: accelerated methotrexate; vinblastine; doxorubicin; and cisplatin (AMVAC); bladder cancer; chemotherapy; dose-intense; muscle-invasive; neoadjuvant; transitional cell carcinoma
Publisher: Wiley
ISSN: 0008-543X
Last Modified: 04 Jun 2017 04:30
URI: http://orca.cf.ac.uk/id/eprint/40152

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