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‘Tomudex’ (ZD1694): Results of a randomised trial in advanced colorectal cancer demonstrate efficacy and reduced mucositis and leucopenia

Identifieur interne : 00D415 ( Main/Curation ); précédent : 00D414; suivant : 00D416

‘Tomudex’ (ZD1694): Results of a randomised trial in advanced colorectal cancer demonstrate efficacy and reduced mucositis and leucopenia

Auteurs : D. Cunningham [Royaume-Uni] ; J. R. Zalcberg [Australie] ; U. Rath [Allemagne] ; I. Olver [Australie] ; E. Van Cutsem [Belgique] ; C. Svensson [Suède] ; J. F. Scitz [France] ; P. Harper [Royaume-Uni] ; D. Kerr [Royaume-Uni] ; G. Perez-Manga [Espagne] ; M. Azab [Royaume-Uni] ; L. Seymour [Royaume-Uni] ; K. Lowery [Royaume-Uni]

Source :

RBID : ISTEX:903D61F1D65AF14E506ECC99D1DA49CB73873797

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English descriptors

Abstract

Abstract: ‘Tomudex’ (ZD1694), a direct and specific thymidylate synthase (TS) inhibitor entered phase III studies in November 1993. We present here the first analysis of a randomised multicentre, international phase III study. 439 patients with previously untreated advanced colorectal cancer were randomised to Tomudex 3.0 mg/m2 given once every 3 weeks or 5-fluorouracil (5-FU) 425 mg/m2 and leucovorin (LV) 20 mg/m2 for 5 days (the Mayo regimen), given every 4–5 weeks. Patients were evaluated weekly for toxicity and every 12 weeks for objective response. The two groups were well matched in terms of demographic characteristics. The mean age of the patients was 61 years and most had either liver (78%) or lung (25–29%) metastases. Ninety seven per cent of patients allocated to Tomudex and 94% of those allocated to 5-FU plus LV had measurable disease. Response was assessed using WHO/UICC criteria; all response data were source validated; 19.8% of patients who received Tomudex and 12.7% of patients who received 5-FU plus LV had complete or partial responses (P = 0.059, odds ratio 1.7,95% confidence limits 0.98–2.81). There were no statistically significant differences in time to progression or survival between the two groups. Patients who received Tomudex spent a substantially shorter time in hospital for dosing and had significantly lower rates of grade 3 and 4 toxicities such as leucopenia and mucositis. Patients who received Tomudex had a significantly higher incidence of reversible grade 3 or 4 increase in transaminases, which appear to be of limited clinical significance. Improvement in quality of life, weight gain and performance status was seen in both groups. Tomudex has benefits in terms of higher response rates, reduced toxicity and more frequent palliative benefits when compared with 5-FU plus LV in the management of advanced colorectal cancer, and has a more convenient administration schedule.

Url:
DOI: 10.1016/0959-8049(95)00502-1

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ISTEX:903D61F1D65AF14E506ECC99D1DA49CB73873797

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<div type="abstract" xml:lang="en">Abstract: ‘Tomudex’ (ZD1694), a direct and specific thymidylate synthase (TS) inhibitor entered phase III studies in November 1993. We present here the first analysis of a randomised multicentre, international phase III study. 439 patients with previously untreated advanced colorectal cancer were randomised to Tomudex 3.0 mg/m2 given once every 3 weeks or 5-fluorouracil (5-FU) 425 mg/m2 and leucovorin (LV) 20 mg/m2 for 5 days (the Mayo regimen), given every 4–5 weeks. Patients were evaluated weekly for toxicity and every 12 weeks for objective response. The two groups were well matched in terms of demographic characteristics. The mean age of the patients was 61 years and most had either liver (78%) or lung (25–29%) metastases. Ninety seven per cent of patients allocated to Tomudex and 94% of those allocated to 5-FU plus LV had measurable disease. Response was assessed using WHO/UICC criteria; all response data were source validated; 19.8% of patients who received Tomudex and 12.7% of patients who received 5-FU plus LV had complete or partial responses (P = 0.059, odds ratio 1.7,95% confidence limits 0.98–2.81). There were no statistically significant differences in time to progression or survival between the two groups. Patients who received Tomudex spent a substantially shorter time in hospital for dosing and had significantly lower rates of grade 3 and 4 toxicities such as leucopenia and mucositis. Patients who received Tomudex had a significantly higher incidence of reversible grade 3 or 4 increase in transaminases, which appear to be of limited clinical significance. Improvement in quality of life, weight gain and performance status was seen in both groups. Tomudex has benefits in terms of higher response rates, reduced toxicity and more frequent palliative benefits when compared with 5-FU plus LV in the management of advanced colorectal cancer, and has a more convenient administration schedule.</div>
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