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Ann Oncol. 2004 May;15(5):751-8.

A novel continuous infusional 5-fluorouracil-based chemotherapy regimen compared with conventional chemotherapy in the neo-adjuvant treatment of early breast cancer: 5 year results of the TOPIC trial.

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  • 1Royal Marsden Hospital, Fulham Road, Lonson SW3 6JJ, UK. ian.smith@rmh.nthames.nhs.uk

Abstract

BACKGROUND:

To compare the efficacy of continuous infusional 5-fluorouracil (5-FU)-based chemotherapy against conventional bolus chemotherapy in the preoperative treatment of patients with large operable early breast cancer.

PATIENTS AND METHODS:

Four hundred and twenty-six women with histologically proven 3 cm invasive early breast cancer were randomised to receive pre-operative infusional 5-FU 200 mg/m(2) by daily 24 h continuous infusion via a Hickman line for 18 weeks with epirubicin 60 mg/m(2) intravenous (i.v.) bolus on day 1 and cisplatin 60 mg/m(2) i.v. bolus on day 1, both repeating 3-weekly (infusional ECisF), or conventional bolus doxorubicin 60 mg/m(2) i.v. on day 1 and cyclophosphamide 600 mg/m(2) i.v. on day 1, both repeating 3-weekly (AC), both schedules for six courses. Patients subsequently had local therapy (surgery or radiotherapy or both) and tamoxifen 20 mg orally daily as appropriate.

RESULTS:

The 5 year results for AC and infusional ECisF, respectively, were as follows: overall response, 75% and 77%; complete clinical remission, 31% and 34%; pathological complete remission (pathCR), 16% for both; and pathCR with residual ductal carcinoma in situ (DCIS), 25% and 24%. Mastectomy rates were 37% and 34%, respectively. Five-year overall survival was 74% for AC and 82% for infusional ECisF (hazard ratio 0.76, 95% confidence interval 0.51-1.13; P = 0.18). Both treatments were well tolerated. Grade III/IV lethargy, vomiting, alopecia and plantar-palmar erythema were significantly greater for infusional ECisF; grade III/IV leucopenia was significantly greater for AC.

CONCLUSIONS:

Preoperative continuous infusional 5-FU-based chemotherapy is no more active than conventional AC for early breast cancer; with a median 5 year follow-up, the infusion-based schedule shows a non-significant trend towards improved survival.

PMID:
15111342
[PubMed - indexed for MEDLINE]
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