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Intermittent or Continuous Acetylsalicylic Acid and Gene Expression in the Nasal Tissue of Current Smokers

Tobacco Use Disorder Clinical Trial

Official title:
The Effect of Intermittent Versus Continuous Dose Aspirin (ASA) on Nasal Epithelium Gene Expression in Current Smokers

Clinical Trial Summary

This randomized phase II trial studies the safety and effects of acetylsalicylic acid (aspirin) taken continuously or intermittently on gene expression in the nasal tissue of current smokers. Smokers are at increased risk of developing lung cancer. Acetylsalicylic acid may be useful in preventing lung cancer.

Clinical Trial Description

PRIMARY OBJECTIVES:

I. To analyze the impact of a 12-week intervention of intermittent and continuous acetylsalicylic acid (ASA) on a smoking-related gene expression signature in the nasal epithelium of current smokers and to analyze any difference between the intermittent and continuous ASA interventions.

SECONDARY OBJECTIVES:

I. To determine whether the change in the smoking-related gene expression signature of nasal epithelium persists one week off agent intervention.

II. To compare the change in urinary prostaglandin E metabolite (PGE-M) and leukotriene E (4) (LTE [4]) between the continuous and intermittent dosing arms and to determine whether the change persists one week off agent intervention.

III. To analyze the impact of intermittent and continuous ASA on a three lung cancer-related gene signatures (an 80-gene signature, a phosphoinositide 3-kinase [PI3K] gene signature, and a nasal epithelium cancer signature) in the nasal epithelium and to analyze any difference between the intermittent and continuous ASA interventions.

IV. To determine whether the change, if any, in the lung cancer-related gene expression signatures of nasal epithelium persists one week off agent intervention.

V. To compare the safety in current smokers of 12 week exposure to continuous versus intermittent ASA.

VI. To evaluate a gender effect in the modulatory effects of intermittent and continuous ASA on smoking-related gene expression signature.

VII. To explore in a discovery-driven fashion the effect of ASA intervention on whole-genome gene expression.

VIII. To analyze the impact of intermittent and continuous ASA on karyometric analysis of buccal cells and to analyze any difference between intermittent and continuous ASA interventions.

OUTLINE: Participants are randomized to 1 of 2 treatment arms.

ARM I (CONTINUOUS): Participants receive aspirin orally (PO) once daily (QD) for 12 weeks.

ARM II (INTERMITTENT): Participants receive placebo PO QD during weeks 1, 3, 5, 7, 9, and 11 and aspirin PO QD during weeks 2, 4, 6, 8, 10, and 12.

After completion of study treatment, participants are followed up for 2 weeks. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02123849
Study type Interventional
Source National Cancer Institute (NCI)
Contact
Status Completed
Phase Phase 2
Start date June 2014
Completion date February 2018
View Details
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