Testing the Effect of the Broccoli Seed and Sprout Extract, Avmacol ES, on the Cancer Causing Substances of Tobacco in Heavy Smokers
Public ClinicalTrials.gov record NCT05121051. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Phase II Randomized, Double Blind, Placebo-Controlled Trial of Broccoli Seed and Sprout Extract (BSSE), Avmacol ES, to Evaluate Sustained Detoxification of Tobacco Carcinogens in Heavy Smokers
Study identification
- NCT ID
- NCT05121051
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Enrollment
- 135 participants
Conditions and interventions
Conditions
Interventions
- Biospecimen Collection Procedure
- Broccoli Sprout/Broccoli Seed Extract Supplement Dietary Supplement
- Placebo Administration Drug
- Questionnaire Administration Other
Procedure · Dietary Supplement · Drug + 1 more
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 20, 2022
- Primary completion
- Jan 12, 2027
- Completion
- Dec 30, 2027
- Last update posted
- May 12, 2026
2022 – 2027
United States locations
- U.S. sites
- 3
- U.S. states
- 3
- U.S. cities
- 3
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Arizona Cancer Center - Prevention Research Clinic | Tucson | Arizona | 85719 | Recruiting |
| George Washington University Medical Center | Washington D.C. | District of Columbia | 20037 | Recruiting |
| Roswell Park Cancer Institute | Buffalo | New York | 14263 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05121051, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 12, 2026 · Synced May 17, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05121051 live on ClinicalTrials.gov.