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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Carcinogens Clear all
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Nornicotine in Smokeless Tobacco as a Precursor for Carcinogen Exposure

NCT03998735
View directory record Official record
Conditions
Smokeless Tobacco
Interventions
Herbal Snuff (Smokeless Tobacco)
Drug
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Jul 21, 2026, 4:00 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Clinical Trial of Two Study Drinks in Detoxification of Environmental Toxicants and Carcinogens

NCT03978117
View directory record Official record
Conditions
Healthy
Interventions
Freeze Dried Watercress Preparation, Placebo Preparation
Dietary Supplement
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 20, 2025 · Synced Jul 21, 2026, 4:00 PM EDT
Completed No phase listed Observational

Collection of Tissue Blocks or Slides From Patients With Cancer

NCT02810405
View directory record Official record
Conditions
Tumor, Carcinogens, Neoplasm, Benign, Benign Neoplasms, Cancer
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
191 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 14, 2024 · Synced Jul 21, 2026, 4:00 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Metabolism of NNK Among African Americans

NCT01158456
View directory record Official record
Conditions
Lung Cancer
Interventions
Not listed
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
21 Years to 65 Years
Enrollment
161 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 9, 2023 · Synced Jul 21, 2026, 4:00 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigation of Kava Effects on NNK Metabolism

NCT02500472
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Kava
Dietary Supplement
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 3, 2018 · Synced Jul 21, 2026, 4:00 PM EDT
Withdrawn Phase 1 Interventional

The Role of Meat-borne Carcinogens in Pancreatic Cancer

NCT01092689
View directory record Official record
Conditions
Pancreas Cancer
Interventions
PhiP
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 25, 2020 · Synced Jul 21, 2026, 4:00 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Resveratrol in Healthy Adult Participants

NCT00721877
View directory record Official record
Conditions
Healthy, no Evidence of Disease
Interventions
resveratrol, pharmacological study, laboratory biomarker analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 7, 2014 · Synced Jul 21, 2026, 4:00 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Genetic Mutations and Environmental Exposure in Young Patients With Retinoblastoma and in Their Parents and Young Healthy Unrelated Volunteers

NCT00690469
View directory record Official record
Conditions
Extraocular Retinoblastoma, Intraocular Retinoblastoma, Recurrent Retinoblastoma
Interventions
Laboratory Biomarker Analysis, Questionnaire Administration
Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
Not listed
Enrollment
234 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2008
U.S. locations
49
States / cities
Los Angeles, California • Madera, California • San Francisco, California + 38 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Jul 21, 2026, 4:00 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

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

NCT03402230
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma, Tobacco-Related Carcinoma
Interventions
Broccoli Sprout/Broccoli Seed Extract Supplement, Laboratory Biomarker Analysis, Questionnaire Administration
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
2
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 27, 2023 · Synced Jul 21, 2026, 4:00 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Scalability of a Home Health Navigator Program to Reduce Arsenic, Nitrate, and Lead in Private Well Water

NCT05395663
View directory record Official record
Conditions
Pollution; Exposure
Interventions
Community health worker
Behavioral
Lead sponsor
Oregon State University
Other
Eligibility
21 Years and older
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 17, 2025 · Synced Jul 21, 2026, 4:00 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

InAdvance: Surveillance, Prevention, and Interception in a Population at Risk for Cancer

NCT05463796
View directory record Official record
Conditions
Cancer Risk, Cancer Predisposition Syndrome, Hereditary Cancer Prediction, Childhood Cancer Survivors, Adult Cancer Survivors, IARC Carcinogens, Smoking History, Lung Cancer, Ductal/Lobular Carcinoma, Barrett Esophagus, Pancreatic Precursor Lesions, Colonic Dysplasia/Adenomata, Non-Alcoholic Fatty Liver Disease, Non Alcoholic Steatohepatitis, Cirrhosis, High Grade Prostatic Epithelial Neoplasia, High-grade Bladder Urothelial Dysplasia/Carcinoma in Situ, Adenomatous Hyperplasia, High-risk Oral Precancerous Diseases, Melanocytic Lesion, Adult, Hematologic Malignancy, Lung; Node, Serous Tubal Intraepithelial Carcinoma, Endometrial Intraepithelial Neoplasia, Cervical and Endocervical Carcinoma in Situ, Vulvar Intraepithelial Neoplasia, Nephrogenic Rests, Benign Bone Lesions With Risk of Malignant Degeneration, Giant Cell Tumor, Osteochondroma, Spitz Nevus
Interventions
Samples
Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
Not listed
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2032
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Jul 21, 2026, 4:00 PM EDT
Completed No phase listed Observational

S0424 - Carcinogens in Lung Tissue From Smokers (Closed to Entry as of 7/15/07) and Non-Smokers With Newly Diagnosed Stage I, Stage II, or Stage III Non-Small Cell Lung Cancer

NCT00450281
View directory record Official record
Conditions
Lung Cancer
Interventions
chromogenic in situ hybridization, gene expression analysis, mutation analysis, polymerase chain reaction, polymorphism analysis, fluorescent antibody technique, immunohistochemistry staining method, laboratory biomarker analysis, matrix-assisted laser desorption/ionization time of flight mass spectrometry, study of socioeconomic and demographic variables, study of high risk factors
Genetic · Other · Procedure
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years to 120 Years
Enrollment
981 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
405
States / cities
Anchorage, Alaska • Tucson, Arizona • Fort Smith, Arkansas + 279 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2015 · Synced Jul 21, 2026, 4:00 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Study of Lung Cancer in Appalachian Kentucky: The Role of Environmental Carcinogens

NCT01648166
View directory record Official record
Conditions
Lung Cancer
Interventions
Environmental sampling
Other
Lead sponsor
Susanne Arnold
Other
Eligibility
18 Years and older
Enrollment
520 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2019
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Nov 6, 2019 · Synced Jul 21, 2026, 4:00 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Carcinogen and Toxicant Exposure Among Young Adults Who Co-Use E-cigarettes and Cannabis (Co-Tox Study)

NCT07167225
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma, E-Cig Use
Interventions
Effectiveness of different recruitment approaches, Choice of study completion locations, Cannabis Engagement Assessment, E-cigarette dependence Scale
Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 25 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Jul 21, 2026, 4:00 PM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

Evaluation of Broccoli Seed and Sprout Extract for Detoxification of Carcinogens in Firefighters

NCT06009926
View directory record Official record
Conditions
Hematopoietic and Lymphatic System Neoplasm, Malignant Solid Neoplasm, Occupational Malignant Neoplasm
Interventions
Acetaminophen, Biospecimen Collection, Broccoli Sprout/Broccoli Seed Extract Supplement, Placebo Administration, Questionnaire Administration, Training
Drug · Procedure · Dietary Supplement + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Jul 21, 2026, 4:00 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pilot Study of Meat-Borne Carcinogens and Pancreatic Cancer

NCT01492907
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
MeIQx, Pancreatectomy
Radiation · Procedure
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 21, 2014 · Synced Jul 21, 2026, 4:00 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessing the Variability Over Time of Tobacco Carcinogen Biomarkers in Smokers - 2

NCT00158145
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
55 Years to 74 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 9, 2017 · Synced Jul 21, 2026, 4:00 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Testing the Effect of the Broccoli Seed and Sprout Extract, Avmacol ES, on the Cancer Causing Substances of Tobacco in Heavy Smokers

NCT05121051
View directory record Official record
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 Jul 13, 2026 · Synced Jul 21, 2026, 4:00 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessing the Link Between Smoke Carcinogen Biomarkers and Lung Cancer Risk - 1

NCT00218179
View directory record Official record
Conditions
Tobacco Use Disorder, Lung Cancer
Interventions
Non-intervention
Other
Lead sponsor
University of Minnesota
Other
Eligibility
55 Years to 74 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 22, 2017 · Synced Jul 21, 2026, 4:00 PM EDT