Clinical trial · Interventional
p16 Methylation for Smoking Cessation
Testing the Feasibility of Using an Epigenetic Marker, p16, to Promote Smoking Cessation
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Smoking cessation is often difficult for smokers to achieve for a variety of reasons including: difficulty with nicotine withdrawal, failure to perceive the benefits of smoking cessation, and failure to perceive the risks associated with smoking. We argue that the most effective biomarkers to affect perceptions of harm, especially for lung cancer, are those that signal progression towards disease development Proposed is a pilot study of educating smokers about the role of genetics and lung cancer in Durham VA out-patient clinics. The goal of this pilot study is to assess the interest in study participation from the VA smoking population, as well as to determine the fraction of subjects who will complete the study to power a future larger trial. Interested patients will receive a 15 minute educational presentation on the function of p16 and its role in development of lung cancer. They will then be assessed for airway obstruction by hand-held spirometry followed by review of a questionnaire assessing their understanding of the presented information, their concern for developing lung cancer, and their desire to quit smoking. All patients will be offered smoking cessation assistance at this point. Enrolled patients will then be given 3 sputum cups to take home and return with morning sputum samples by mail. Samples will be assessed for evidence of p16 methylation and patients will be informed of the results. Follow-up phone interviews will be performed at 2 to 4 weeks after patients have received their results by mail to assess their understanding of the results, and their desire to stop smoking. A final phone interview will occur approximately 3 months after the sputum testing to assess attempts to stop smoking as well as the patients continued understanding of their test results. For purposes of this pilot, we are interested primarily in the descriptive statistics (e.g., frequencies) associated with the outcome of each objective (e.g., how many expressed interest, how many returned the sputum samples).
Conditions
Conditions (3)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Lung Cancer | Malignant Lung Neoplasm | CURATED_EXACT | 0.92 |
| Smoking Cessation | — | UNRESOLVED | — |
| Tobacco Use Disorder | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| p16 Methylation and Lung Cancer Education | Behavioral | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- p16 Methylation in Sputum Testing
- description
- * Patients tested for smoking-related changes in their breathing * shown a presentation on development of lung cancer * complete a questionnaire on items from presentation, desire to have p16 methylation test, views regarding their health and lung cancer, current smoking habits, and demographic detail * given a sputum cup which they are asked to spit into on three consecutive mornings and then return to the lab for processing * a results letter is mailed to them and then followed up with a phone call at one month to discuss the results as well as any changes in their attitudes or smoking habits * patients are called again at three months and asked about any changes in their attitudes or smoking habits
- interventionNames
- Behavioral: p16 Methylation and Lung Cancer Education
Primary outcomes (4)
- measure
- To determine patient interest in finding out whether, through the testing of p16 methylation in their sputum, whether they are at increased or average risk for developing cancer
- timeFrame
- 3 months
- measure
Eligibility
Eligibility (as posted)
- Sex
- All
Show eligibility criteria text
Inclusion Criteria: * current smoker * \>30 pack year history * FEV1/FVC\<70% * patients in outpatient pulmonary clinics at Durham VAMC and general medicine outpatient clinics at Durham VA Hillandale Clinic Exclusion Criteria: * diagnosis of head, neck, or lung cancer * diagnosis of psychosis or severe cognitive impairment * refusal to sign informed consent * severe speech or hearing impairment
References
Publications (1)
- DERIVEDShofer S, Beyea M, Li S, Bastian LA, Wahidi MM, Kelley M, Lipkus IM. Feasibility of using an epigenetic marker of risk for lung cancer, methylation of p16, to promote smoking cessation among US veterans. BMJ Open Respir Res. 2014 Jun 28;1(1):e000032. doi: 10.1136/bmjresp-2014-000032. eCollection 2014. PMID 25478181