HIV Infection and Tobacco Use Among Injection Drug Users in Baltimore, Maryland: A Pilot Study of Biomarkers
|First Received Date ICMJE||June 23, 2007|
|Last Updated Date||February 17, 2010|
|Start Date ICMJE||June 2007|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE||Not Provided|
|Original Primary Outcome Measures ICMJE||Not Provided|
|Change History||Complete list of historical versions of study NCT00491335 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE||Not Provided|
|Original Secondary Outcome Measures ICMJE||Not Provided|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||HIV Infection and Tobacco Use Among Injection Drug Users in Baltimore, Maryland: A Pilot Study of Biomarkers|
|Official Title ICMJE||HIV Infection and Tobacco Use Among Injection Drug Users in Baltimore, MD: A Pilot Study of Biomarkers|
The incidence of lung cancer is quite high among people with the human immunodeficiency (HIV) virus. Frequent smoking may explain that cancer increase, given that 50% to 70% of HIV-infected people are current smokers.
Recent research suggests that other factors may be involved as well. Smoking habits, such as smoking earlier in life or smoking more cigarettes a day than others do, may have a role. Also, HIV-infected smokers seem to have a greater risk of chronic obstructive pulmonary disease (COPD). The association of HIV and COPD is important, because COPD itself is linked to an increased risk of lung cancer.
About 1,600 subjects from the study known as ALIVE (AIDS Linked to the Intra-Venous Experience), which began in 1988 in Baltimore, Maryland, will be given a detailed questionnaire on smoking behaviors and lung cancer risk factors. They will also have spirometry testing, to evaluate lung function.
To better characterize smoking habits and compare tobacco use among HIV-infected and uninfected drug users.
To compare serum cotinine levels and spirometry results, as a marker of tobacco use and a marker of damage to lung function, respectively.
Patients 18 years of age and older who are in the ALIVE cohort.
Patients undergo the following procedures:
Lung cancer incidence is substantially elevated among people infected with human immunodeficiency virus (HIV). Although frequent smoking may partly explain this increase, recent work suggests other factors may also be involved. To better characterize smoking habits and lung cancer risk in HIV-infected people, the investigators propose a cross-sectional pilot study of HIV-infected and uninfected injection drug users in the ALIVE cohort in Baltimore, Maryland. A detailed questionnaire on smoking behaviors and other lung cancer risk factors will be administered to all ~ 1600 cohort subjects. In addition, the investigators will measure serum cotinine (a marker of recent smoking intensity) for a sample of 340 African American males from the cohort, stratified on the amount of cigarette use, HIV status, and CD4 count. Spirometry will be performed on the entire group of 1600 subjects, to assess for chronic obstructive pulmonary disease. Differences between HIV-infected and uninfected subjects in smoking habits, exposure to tobacco, or lung damage will identify areas for future investigation.
|Study Type ICMJE||Observational|
|Study Design ICMJE||Time Perspective: Prospective|
|Target Follow-Up Duration||Not Provided|
|Sampling Method||Not Provided|
|Study Population||Not Provided|
|Intervention ICMJE||Not Provided|
|Study Group/Cohort (s)||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Enrollment ICMJE||Not Provided|
|Completion Date||February 2010|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
Must be a participant in the ALIVE Study
Not a participant in the ALIVE Study
|Ages||17 Years and older|
|Accepts Healthy Volunteers||No|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Location Countries ICMJE||United States|
|NCT Number ICMJE||NCT00491335|
|Other Study ID Numbers ICMJE||999907173, 07-C-N173|
|Has Data Monitoring Committee||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||National Cancer Institute (NCI)|
|Collaborators ICMJE||Not Provided|
|Investigators ICMJE||Not Provided|
|Information Provided By||National Institutes of Health Clinical Center (CC)|
|Verification Date||February 2010|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP