| Evaluation of Broccoli Seed and Sprout Extract for Detoxification of Carcinogens in Firefighters |
Biospecimen Collection, Broccoli Sprout/Broccoli Seed Extract Supplement, Placebo Administration, Questionnaire Administration, Training |
Recruiting |
| Metformin for Chemoprevention of Lung Cancer in Overweight or Obese Individuals at High Risk for Lung Cancer |
Biopsy, Biospecimen Collection, Bronchoscopy, Extended Release Metformin Hydrochloride, Questionnaire Administration |
Recruiting |
| Metformin for the Prevention of Oral Cancer in Patients with Oral Leukoplakia or Erythroplakia |
Biopsy, Biospecimen Collection, Extended Release Metformin Hydrochloride, Placebo Administration |
Recruiting |
| Metformin Hydrochloride in Preventing Oral Cancer in Patients With an Oral Premalignant Lesion |
Laboratory Biomarker Analysis, Metformin Hydrochloride |
Active, not recruiting |
| MUC1 Vaccine in Preventing Lung Cancer in Current and Former Smokers at High Risk for Lung Cancer |
Laboratory Biomarker Analysis, MUC1 Peptide-Poly-ICLC Vaccine |
Active, not recruiting |
| Testing the Effect of the Broccoli Seed and Sprout Extract, Avmacol ES, on the Cancer Causing Substances of Tobacco in Heavy Smokers |
Biospecimen Collection, Broccoli Sprout/Broccoli Seed Extract Supplement, Placebo Administration, Questionnaire Administration |
Recruiting |