Skip to content

Biomarkers of Molecular Risk in Smokers

Biomarkers of Molecular Risk in Smokers

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00598143
Enrollment
45
Registered
2008-01-18
Start date
2005-02-28
Completion date
2015-05-31
Last updated
2015-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Smoking Cessation

Brief summary

Doctors at MSKCC are doing this research study to see if smokers are interested in the idea that genes might be markers of cancer risk, and to see if smokers would want to learn this information about their risk if it were available. Different versions of the gene called UGT1A7 are found in different people. Certain versions of this gene can increase the risk of cancer in people. In this study, doctors will determine the different types of UGT1A7 in smokers and find out whether smokers show good interest and understanding. The information from this study will be used in future studies to identify smokers at increased risk for cancer, and to help smokers quit.

Detailed description

This study consists of two arms; both of which are observational studies of molecular assessments of risk for tobacco related cancer. Arm A of the protocol is a pilot crosssectional study that evaluates the feasibility of obtaining and testing a genetic marker of cancer susceptibility (UGT1A7 polymorphisms) in smokers. It also explores smokers' interest in and comprehension of genetic risk assessments as possible tools for increasing motivation for smoking cessation. The second arm of this protocol, Arm B, is an observational prospective evaluation of a putative noninvasive biomarker of tobacco smoke exposure - urinary prostaglandin E-metabolite (PGE-M) - in smokers motivated to reduce and/or cease smoking.

Interventions

BEHAVIORALVignette, questionnaires and Saliva Samples

The short vignette discusses the health implications of potential molecular markers of cancer risk assessment. The questionnaire asks several multiple-choice questions to assess the participant's interest in and understanding of molecular risk assessment. Patients are instructed to swish with 10cc of Scope mouthwash and to expectorate into a sterile 50cc conical tube.

BEHAVIORALUrine Collection, Smoking cessation treatment

Single void urine specimens (approximately 50 ml) will be collected in pre-labeled specimen containers on a 3-monthly (±1 month) basis for 12 months. Standard evidence-based therapy for smoking cessation, including behavioral therapy and pharmacological therapy, is provided.

Sponsors

Weill Medical College of Cornell University
CollaboratorOTHER
Vanderbilt University School of Medicine
CollaboratorOTHER
Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Arm A * 18 years or older; * \>5 packyear history of smoking; * Ability to understand and sign informed consent. * Arm B * 18 years or older; * \>10 packyear history of smoking; * Intention to taper and/or quit smoking within 6 months * Ability to understand and sign informed consent.

Exclusion criteria

* Arm A * Diagnosis of any cancer in the preceding twelve months; (excluding non melanoma skin cancer). * Arm B * Diagnosis of any cancer in the preceding twelve months; (excluding non melanoma skin cancer). * Use of any COX-2 inhibitor, steroid, or non-steroidal anti-inflammatory medication (excluding cardioprotective aspirin \> 81mg/d) within one week of urine collection

Design outcomes

Primary

MeasureTime frame
Estimate accrual rates and smokers' willingness to provide saliva for cancer risk assessment.conclusion of study

Secondary

MeasureTime frame
Evaluate the effect of smoking reduction and/or cessation on levels of urinary PGE-M.conclusion of study

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026