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Clinical trialNCT00425152CompletedPhase 3Interventional

Fluorouracil and Leucovorin and/or Levamisole After Surgery In Treating Patients With Dukes' B Or Dukes' C Colon Cancer

SponsorNSABP Foundation IncEnrollment2,151Colorectal Cancer
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

RATIONALE: Drugs used in chemotherapy, such as fluorouracil, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Leucovorin may help fluorouracil kill more tumor cells. Biological therapies, such as levamisole, may interfere with the growth of tumor cells and slow the growth of solid tumors. It is not yet known whether fluorouracil is more effective when given together with leucovorin and/or levamisole after surgery in treating colon cancer. PURPOSE: This randomized phase III trial is studying giving fluorouracil together with leucovorin to see how well it works compared with giving fluorouracil together with levamisole, or giving fluorouracil together with leucovorin and levamisole after surgery in treating patients with Dukes' B or Dukes' C colon cancer.
clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

No facility list is in our current data snapshot for this study. The registry record on ClinicalTrials.gov ↗ carries any published locations. Why? →

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Fluorouracil →Leucovorin →Levamisole
Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
31 Jul 1989
Primary completion
30 Jun 1998
Completion
30 Apr 2004
Last update posted
8 Feb 2010
Registered enrollment
2,151
Registry id
NCT00425152
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 4 Nov 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.