Valle, J.W., Wasan, H., Johnson, P., Jones, E., Dixon, L., Swindell, R., Baka, S., Maraveyas, A., Corrie, P., Falk, S., Golins, S., Lofts, F., Evans, L., Meyer, T., Anthoney, A., Iveson, T., Highley, M., Osborne, R. and Bridgewater, J. (2009) Gemcitabine alone or in combination with cisplatin in patients with advanced or metastatic cholangiocarcinomas or other biliary tract tumours: a multicentre randomised phase II study - the UK ABC-01 study. British Journal of Cancer, 101 (4), 621-627. (doi:10.1038/sj.bjc.6605211).
Abstract
Background: we assessed the activity of gemcitabine (G) and cisplatin/gemcitabine (C/G) in patients with locally advanced (LA) or metastatic (M) (advanced) biliary cancers (ABC) for whom there is no standard chemotherapy.
Methods: patients, aged greater than or equal to18 years, with pathologically confirmed ABC, Karnofsky performance (KP) greater than or equal to60, and adequate haematological, hepatic and renal function were randomised to G 1000?mg?m?2 on D1, 8, 15 q28d (Arm A) or C 25?mg?m?2 followed by G 1000?mg?m?2 D1, 8 q21d (Arm B) for up to 6 months or disease progression.
Results: in total, 86 patients (A/B, n=44/42) were randomised between February 2002 and May 2004. Median age (64/62.5 years), KP, primary tumour site, earlier surgery, indwelling biliary stent and disease stage (LA: 25/38%) are comparable between treatment arms. Grade 3–4 toxicity included (A/B, % patients) anaemia (4.5/2.4), leukopenia (6.8/4.8), neutropenia (13.6/14.3), thrombocytopenia (9.1/11.9), lethargy (9.1/28.6), nausea/vomiting (0/7.1) and anorexia (2.3/4.8). Responses (WHO criteria, % of evaluable patients: A n=31 vs B n=36): no CRs; PR 22.6 vs 27.8%; SD 35.5 vs 47.1% for a tumour control rate (CR+PR+SD) of 58.0 vs 75.0%. The median TTP and 6-month progression-free survival (PFS) (the primary end point) were greater in the C/G arm (4.0 vs 8.0 months and 45.5 vs 57.1% in arms A and B, respectively).
Conclusion: both regimens seem active in ABC. C/G is associated with an improved tumour control rate, TTP and 6-month PFS. The study has been extended (ABC-02 study) and powered to determine the effect on overall survival and the quality of life
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