- Conditions
- Cigarette Smoking-Related Carcinoma
- Interventions
- Biospecimen Collection, Broccoli Sprout/Broccoli Seed Extract Supplement, Placebo Administration, Questionnaire Administration
- Procedure · Dietary Supplement · Drug + 1 more
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 18 Years and older
- Enrollment
- 135 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2027
- U.S. locations
- 3
- States / cities
- Tucson, Arizona • Washington D.C., District of Columbia • Buffalo, New York
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced May 22, 2026, 5:06 AM EDT