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Tobacco Use DisorderNCT00218179

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

An observational study of Tobacco Use Disorder and Lung Cancer, run by University of Minnesota at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Lung cancer is the leading cause of cancer death in the United States. Currently it remains impossible to predict which smokers will get cancer. Each puff of a cigarette delivers a mixture of over 60 known carcinogens. Biomarkers that quantify carcinogen levels and metabolism are a useful tool and available to use. Read more about this study

Who is it for?
Ages 55 to 74 yearsHealthy volunteers can take part
Conditions the study is for
Tobacco Use Disorder, Lung Cancer
What is being tested?
Non-intervention
How many people
200 participants
Where
1 siteUnited States
Study dates
Sep 2005to Dec 2007
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 55 to 74 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Case-control study nested within the Prostate Lung Colorectal and Ovarian Cancer Screening Trial. Subjects consisted of screening arm subjects who were smokers at baseline and who contributed biorepository samples at the first screening visit.

Who may be able to join

  • Screening arm participants in the Prostate, Lung, Colon, and Ovarian Screen Trial (PLCO)
  • Reported smoking on baseline questionnaire of PLCO
  • Contributed biorepository samples

Who cannot join

  • Unstable physical or mental health

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Minnesota

    Minneapolis, Minnesota, 55455

Other trials in United States

About this study

Official title: Prostate, Lung, Colon, and Ovarian Cancer (PLCO) Screen Trial

Lung cancer is the leading cause of cancer death in the United States. Currently it remains impossible to predict which smokers will get cancer. Each puff of a cigarette delivers a mixture of over 60 known carcinogens. Biomarkers that quantify carcinogen levels and metabolism are a useful tool and available to use. The purpose of this study is to assess the link between tobacco smoke carcinogen biomarkers and the risk of developing lung cancer.

Read the detailed description

Lung cancer is the leading cause of cancer death in the United States. Approximately 90% of lung cancer is caused by cigarette smoking. While most lung cancer cases occur in smokers or ex-smokers, only 15-25% of smokers will get lung cancer. Currently it remains impossible to predict which smokers will get cancer.

Each puff of a cigarette delivers, along with nicotine, a mixture of over 60 known carcinogens. Most of these carcinogens require metabolic activation before they can negatively affect cell DNA and cause cancer. Biomarkers that quantify carcinogen levels and metabolic activity of carcinogens are a useful tool and available to use. The purpose of this study is to assess the link between tobacco smoke carcinogen biomarkers and the risk of developing lung cancer.

This observational case-control study will involve a random selection from a group of smokers who are participating in the Prostrate, Lung, Colon, and Ovarian Cancer (PLCO) Screen Trial. The chosen cases will include 300 incident lung cancer cases and 300 controls (participants who have had no diagnosis of lung cancer). Demographic and baseline data from the PLCO database will be obtained. Prior baseline blood samples from the PLCO trial will be obtained as well. Based on age, sex, and smoking history, participants will be grouped into triplets in order to pool their blood samples. These samples will then be analyzed to determine whether distributions of biomarker levels in lung cancer participants differ from those in non-lung cancer participants. This study will not involve recruitment of any participants, as data and samples from the PLCO trial will be used and no new blood samples will be obtained.

Being tested
Non-intervention
Keywords
Lung Cancer, Cotinine, NNAL, Carcinogens, Case-control, SNPs
Medical subject headings
Tobacco Use Disorder, Lung Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Non-interventionOther

    Also called NNAL-glucuronide, phenanthrene tetraol

    Measured total NNAL and PheT as biomarkers of exposure

Study groups in NCT00218179
Study groupRoleWhat they receive
CasesLung cancer cases diagnosed prior to 2007 among baseline smokers in the PLCO
Receives: Other: Non-intervention
ControlsSubjects without lung cancer among smokers at baseline in the PLCO study
Receives: Other: Non-intervention

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Lung cancer

    Measured: Cumulative incidence

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Sep 2005 (estimated)
  2. Study startSep 2005
  3. Primary completionDec 2007
  4. Study completionDec 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Retrospective
Enrolment
200 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00218179
Sponsor's protocol ID
NIDA-13333-1
Other IDs
P50DA013333
Status last verified
Jan 2017
First submitted
16 Sep 2005
Last updated
23 Jan 2017
Results posted
No
Data monitoring committee
No

Publications

  • Church TR, Haznadar M, Geisser MS, Anderson KE, Caporaso NE, Le C, Abdullah SB, Hecht SS, Oken MM, Van Ness B. Interaction of CYP1B1, cigarette-smoke carcinogen metabolism, and lung cancer risk. Int J Mol Epidemiol Genet. 2010 Aug 5;1(4):295-309.

    PubMed 21532841
  • Church TR, Anderson KE, Caporaso NE, Geisser MS, Le CT, Zhang Y, Benoit AR, Carmella SG, Hecht SS. A prospectively measured serum biomarker for a tobacco-specific carcinogen and lung cancer in smokers. Cancer Epidemiol Biomarkers Prev. 2009 Jan;18(1):260-6. doi: 10.1158/1055-9965.EPI-08-0718.

    PubMed 19124507
  • Fang G, Haznadar M, Wang W, Yu H, Steinbach M, Church TR, Oetting WS, Van Ness B, Kumar V. High-order SNP combinations associated with complex diseases: efficient discovery, statistical power and functional interactions. PLoS One. 2012;7(4):e33531. doi: 10.1371/journal.pone.0033531. Epub 2012 Apr 19.

    PubMed 22536319

Questions about this trial

What is this clinical trial studying?

An observational study of Tobacco Use Disorder and Lung Cancer, run by University of Minnesota at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 23 Jan 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Lung cancer (time frame: Cumulative incidence). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00218179, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Jan 2017.

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