Phase II trial of chronomodulated infusion of high-dose fluorouracil and l-folinic acid in previously untreated patients with metastatic colorectal cancer

J Clin Oncol. 2002 Mar 1;20(5):1175-81. doi: 10.1200/JCO.2002.20.5.1175.

Abstract

Purpose: To study tolerability and efficacy of an intensified chronomodulated schedule of fluorouracil (5-FU) and l-folinic acid (l-FA) as first-line treatment of metastatic colorectal cancer, 5-FU was given near individually determined dose-limiting toxicity in a multicenter phase II trial.

Patients and methods: One hundred patients (68 men and 32 women, median age 62 years, World Health Organization performance status less-than-or-equal 2) with previously untreated and inoperable metastases received chronomodulated daily infusion of 5-FU/l-FA (from 10:00 PM to 10:00 AM with peak at 4:00 AM). 5-FU dose was escalated from 900 to 1,100 mg/m(2)/d with fixed dose of l-FA at 150 mg/m(2)/d for 4 days every 14 days.

Results: 5-FU dose escalation was achieved in 66% of the patients. Grade 3 to 4 toxicities mainly consisted of nausea or vomiting (14% of patients and 1.5% of courses), hand-foot syndrome (38% of patients and 8% of courses), mucositis (26% of patients and 4% of courses), and diarrhea (21% of patients and 2.3% of courses). Objective response rate (ORR) was 41% (95% confidence interval, 31.5% to 50.5%). Twenty patients underwent metastases surgery; among these, 12 had a complete resection. Median progression-free survival was 7 months. Median survival was 17 months; 28% of the patients were alive at 2 years and 18.6% at 3 years.

Conclusion: The ORR achieved with intensified chronomodulated delivery of 5-FU/l-FA was nearly twice as high as that earlier obtained by our cooperative group using less intensive 5-FU/FA chronotherapy.

Publication types

  • Clinical Trial
  • Clinical Trial, Phase II
  • Multicenter Study

MeSH terms

  • Adult
  • Aged
  • Antimetabolites, Antineoplastic / administration & dosage
  • Antimetabolites, Antineoplastic / toxicity
  • Antineoplastic Combined Chemotherapy Protocols / administration & dosage*
  • Antineoplastic Combined Chemotherapy Protocols / toxicity
  • Chronotherapy
  • Colorectal Neoplasms / drug therapy*
  • Colorectal Neoplasms / mortality
  • Female
  • Fluorouracil / administration & dosage
  • Fluorouracil / toxicity
  • Humans
  • Infusions, Intravenous
  • Leucovorin / administration & dosage
  • Leucovorin / toxicity
  • Male
  • Middle Aged
  • Neoplasm Metastasis
  • Survival Rate

Substances

  • Antimetabolites, Antineoplastic
  • Leucovorin
  • Fluorouracil