ClinicalTrials.gov record

Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Broccoli Sprout/Broccoli Seed Extract Supplement in Decreasing Toxicity in Heavy Smokers

ClinicalTrials.gov ID: NCT03402230

Public ClinicalTrials.gov record NCT03402230. 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.

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ClinicalTrials.gov public records Last synced May 18, 2026, 1:39 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Clinical Study of Avmacol® for Detoxification of Tobacco Carcinogens in Heavy Smokers

Study identification

NCT ID: NCT03402230
Recruitment status: Completed
Study type: Interventional
Phase: Early Phase 1
Lead sponsor: National Cancer Institute (NCI); NIH
Enrollment: 49 participants

Conditions and interventions

Conditions

Interventions

Broccoli Sprout/Broccoli Seed Extract Supplement Drug
Laboratory Biomarker Analysis Other
Questionnaire Administration Other

Drug · Other

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: Feb 19, 2018
Primary completion: Jan 9, 2020
Completion: Jul 23, 2022
Last update posted: Jun 27, 2023

2018 – 2022

United States locations

U.S. sites: 2
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
Banner University Medical Center - Tucson	Tucson	Arizona	85719	—
University of Arizona Cancer Center - Prevention Research Clinic	Tucson	Arizona	85719	—

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 NCT03402230, 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 Jun 27, 2023 · Synced May 18, 2026

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03402230 live on ClinicalTrials.gov.

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