- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00904384
Prevalence and Determinants of Chronic Obstructive Pulmonary Disease (COPD) in HIV+ Patients (HIV&COPD)
Prevalencia, Factores de Riesgo y características patogénicas Diferenciales de EPOC y Enfisema en Pacientes Con infección VIH.
The prevalence of COPD in HIV+ and AIDS patients is unknown. The pathophysiology of HIV infection and COPD might be of interest to both conditions. The research hypotheses of this study are:
In patients with HIV infection living in the Autonomous Community of the Balearic Islands (CAIB):
- The Prevalence of airflow obstruction in patients with HIV infection is higher than in the general population.
- In these patients, the prevalence of emphysema detected by HRCT is common (greater than or equal to 15%)
- DLCO measurement is a good marker for the presence of emphysema on CT
- The inflammatory response is different from that seen in patients with COPD and / or emphysema without HIV infection
Study Overview
Status
Conditions
Detailed Description
Objectives
Main objective To determine the prevalence of COPD
Secondary objectives
- To determine the prevalence (and severity) of emphysema (HRCT)
- To Identify risk factors associated with the development of COPD and / or emphysema
- To analyze the predictive value of measuring DLCO as a marker of emphysema by HRCT
- To determine the prevalence of lung function abnormalities deeming specific drug treatment (bronchodilators, inhaled corticosteroids) in the absence of clinical symptoms
- To compare the pattern of inflammatory response in patients with COPD and / or emphysema, with and without HIV infection
Methodology:
Cross-sectional, descriptive, study of up to 350 patients with HIV infection.
All the patients will be be assessed with:
- an standardized clinical questionnaire
- full lung function tests
- high resolution CT scan
- induced sputum for bacterial culture, P. jiroveci, proinflamatory citokines (cytokines array)
- blood analysis: hemogram; basic biochemistry; HIV predictors; autoantibodies; proinflammatory citokines (ultrasensitive ELISA); C reactive protein (ultrasensitive nephelometry)
- exhaled gases (NO and CO)
Statistical analysis:
Description of the univariate distribution of the categorical or ordinal variables will be realized with a table of frequencies, and in quantitative variables by means of measures of central tendency (mean or median) and dispersion (standard deviation or 95 % confidence intervals). Depending on the normality of the distribution of variables, any comparisons will be assessed by means of parametric tests (T test; Chi2) or non parametric tests (Mann Whitney). To explore relationships between the variables of study, Kolgomorov-Smirnov for the comparison of groups and analysis of regression bivariate, and multivariate (logistic regression), will be conducted.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Locations
-
-
Illes Balears
-
Palma de Mallorca, Illes Balears, Spain, 07014
- Hospital Universitario Son Dureta
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- HIV infection in stable phase (minimum of three months)
- Being followed-up in external HUSD consultations (on a regular basis)
- Age 40-69 years
Exclusion Criteria:
- Chronic non-respiratory disease in terminal stage (stage IV or V of chronic kidney failure, heart failure, advanced chronic liver disease (Child C))
- Lack of cooperation
- Estimated survival of less than 1 year or Karnofsky <70
- Pregnancy
- Opportunistic infection in the last month
- Post lung resection
- Systemic treatment with corticosteroids, immunosuppressive chemotherapy or interferon at the time of inclusion
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
---|
HIV+
Patients with HIV infection living in the Autonomous Community of the Balearic Islands (CAIB), Spain
|
Reference group
Same determinations as in HIV+ cases will be obtained in the control group of COPD patients without HIV infection as part of the study PAC-EPOC (FIS 05/2082)
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Prevalence of airflow obstruction compatible with COPD in patients with HIV infection
Time Frame: cross-sectional
|
cross-sectional
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
To determine the prevalence (and severity) of emphysema (HRCT)
Time Frame: Cross-sectional
|
Cross-sectional
|
To Identify risk factors associated with the development of COPD and / or emphysema
Time Frame: Cross-sectional
|
Cross-sectional
|
To analyze the predictive value of measuring DLCO as a marker of emphysema by HRCT
Time Frame: Cross-sectional
|
Cross-sectional
|
To determine the prevalence of lung function abnormalities deeming specific drug treatment (bronchodilators, inhaled corticosteroids) in the absence of clinical symptoms
Time Frame: Cross-sectional
|
Cross-sectional
|
To compare the pattern of inflammatory response in patients with COPD and / or emphysema, with and without HIV infection
Time Frame: Cross-sectional
|
Cross-sectional
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Melchor Riera, MD, Hospital Universitario Son Dureta
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- IB956/08 IP
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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