NCT00712647View on ClinicalTrials.gov

Carotene and Retinol Efficacy Trial

PHASE4CompletedINTERVENTIONAL

Enrollment

18,314

Participants

Timeline

Start Date

May 31, 1985

Primary Completion Date

December 31, 2004

Study Completion Date

June 30, 2005

Conditions

Lung Cancer

Interventions

DRUG

Beta Carotene and Retinol

"Pilot participants (ppts):~Asbestos-Exposed--15 mg/day beta-carotene + 25,000 IU/day retinol Heavy Smokers--30 mg/day beta-carotene + 25,000 IU/day retinol~Vanguard \& Efficacy ppts:~Asbestos-exposed AND heavy smokers--30 mg/day beta-carotene + 25,000 IU/day retinol"

OTHER

Placebo

Two placebos, one each/day

All Listed Sponsors

collaborator

National Cancer Institute (NCI)

NIH

lead

Fred Hutchinson Cancer Center

OTHER

NCT00712647 - Carotene and Retinol Efficacy Trial | Biotech Hunter | Biotech Hunter