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J Clin Oncol. 2001 Aug 1;19(15):3447-55.

Marimastat as first-line therapy for patients with unresectable pancreatic cancer: a randomized trial.

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  • 1Liver Unit, Queen Elizabeth Hospital, Birmingham, United Kingdom. s.sr.bramhall@bham.ac.uk

Abstract

PURPOSE:

The prognosis for unresectable pancreatic cancer remains dismal (1-year survival rate, < 10%; 5-year survival rate, < 5%). Recent advances in conventional chemotherapy and novel molecular treatment strategies warrant investigation. This, the largest randomized study in pancreatic cancer performed to date, compares marimastat, the first of a new class of agents, with gemcitabine.

PATIENTS AND METHODS:

Four hundred fourteen patients with unresectable pancreatic cancer were randomized to receive marimastat 5, 10, or 25 mg bid or gemcitabine 1,000 mg/m2. The primary end point was survival. Progression-free survival, patient benefit, and safety were also assessed.

RESULTS:

There was no significant difference in survival between 5, 10, or 25 mg of marimastat and gemcitabine (P =.19). Median survival times were 111, 105, 125, and 167 days, respectively, and 1-year survival rates were 14%, 14%, 20%, and 19%, respectively. There was a significant difference in survival rates between patients treated with gemcitabine and marimastat 5 and 10 mg (P <.003). Both agents were well tolerated, although grade 3 or 4 toxicities were reported in 22% and 12% of the gemcitabine- and marimastat-treated patients, respectively. The major toxicity of marimastat was musculoskeletal (44% of marimastat patients, compared with 12% of gemcitabine patients; musculoskeletal toxicity was severe in only 8% of marimastat patients).

CONCLUSION:

The results of this study provide evidence of a dose response for marimastat in patients with advanced pancreatic cancer. The 1-year survival rate for patients receiving marimastat 25 mg was similar to that of patients receiving gemcitabine. In view of the manageable tolerability of marimastat and its ease of administration, further studies are warranted.

PMID:
11481349
[PubMed - indexed for MEDLINE]
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