NCT00169845View on ClinicalTrials.gov

Beta-carotene and Alpha-tocopherol Chemoprevention of Second Primary Malignancies in Head and Neck Cancer Patients

PHASE3CompletedINTERVENTIONAL
Enrollment

540

Participants

Timeline

Start Date

October 31, 1994

Primary Completion Date

June 30, 2003

Study Completion Date

March 31, 2018

Conditions
Neoplasms
Interventions
DIETARY_SUPPLEMENT

Alpha-Tocopherol and Beta-Carotene

Provided by Roche Vitamins Inc.

DIETARY_SUPPLEMENT

Placebo

Provided by Roche Vitamins Inc

Trial Locations (1)

G1R 2J6

Laval University Cancer Research Center, Québec

All Listed Sponsors
collaborator

Canadian Cancer Trials Group

NETWORK

collaborator

National Cancer Institute (NCI)

NIH

lead

Laval University

OTHER