HIVNCT02056158
HIV+ Alveolar Macrophage Oxidant-mediated Apoptosis of Pulmonary Endothelium
An observational study of HIV and COPD, run by Weill Medical College of Cornell University at 1 site in United States.
Trial summary
In HIV+ cigarette smokers, with no prior history of pulmonary infections, emphysema is often developed at an earlier age and is a significant cause of morbidity despite treatment with antiretroviral drugs. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- How many people
- 120 participants
- Where
- 1 siteUnited States
- Study dates
- 13 Jan 2014to 23 Oct 2015
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: New York Metropolitan area residents
Who may be able to join
- HEALTHY VOLUNTEER RESEARCH SUBJECTS
- All study subjects should be able to provide informed consent
- Males or females ages 18 years and older
- Must provide HIV informed consent
- VOLUNTEER RESEARCH SUBJECTS WITH LUNG DISEASE
- Must provide informed consent
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- Males and females age 18 years and older
- Lung disease proven by at least one of the following: symptoms consistent with pulmonary disease; (2) chest X-rays consistent with lung disease; (3) pulmonary function tests consistent with lung disease; (4) lung biopsy consistent with lung disease; (5) family history of lung disease; and/or (6) diseases of organs with known association with lung disease
- Must provide HIV informed consent
Who cannot join
- HEALTHY VOLUNTEER RESEARCH SUBJECTS
- Individuals not deemed in good overall health by the investigator will not be accepted into the study.
- Habitual use of drugs and/or alcohol within the past six months (Acceptable: - Marijuana one time in three months; average of two alcoholic beverages per day; drug and/or alcohol abuse is defined as per the DSM-IV Substance Abuse Criteria).
- Individuals with history of chronic lung disease, including asthma or with recurrent or recent (within three months) acute pulmonary disease will not be accepted into the study.
- Individuals with allergies to atropine or any local anesthetic will not be accepted into the study.
- Individuals with allergies to pilocarpine, isoproterenol, terbutaline, atropine or aminophylline will not be accepted into the study.
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- Females who are pregnant or nursing will not be accepted into the study
- VOLUNTEER RESEARCH SUBJECTS WITH LUNG DISEASE
- Any history of allergies to xylocaine, lidocaine, versed, valium, atropine, pilocarpine, isoproterenol, terbutaline, aminophylline, or any local anesthetic will not be included in the study.
- Habitual use of drugs and/or alcohol within the past six months (Acceptable: Marijuana one time in three months; average of two alcoholic beverages per day; drug and/or alcohol abuse is defined as per the DSM-IV Substance Abuse Criteria)
- Females who are pregnant or nursing
Trial locations and contacts
1 site in 1 country.
United States1 site
Department of Genetic Medicne
New York, New York, 10021
About this study
In HIV+ cigarette smokers, with no prior history of pulmonary infections, emphysema is often developed at an earlier age and is a significant cause of morbidity despite treatment with antiretroviral drugs. Preliminary data gathered from HIV+ individuals that smoke cigarettes strongly support the hypothesis that the combination of HIV infection and smoking creates increased stress in the lower respiratory tract. To examine the underlying factors that contribute to the accelerated development of emphysema in this cohort, samples from the lower respiratory tract will be provided by HIV+ and HIV- subjects. The samples collected will serve as biomarkers for assessing the onset of emphysema.
Read the detailed description
The purpose of this study is to analyze biologic samples from the blood, airways and/or urine of HIV- and HIV+ smokers and non-smokers to better understand the etiology and pathogenesis of emphysema in association with HIV infection. The underlying hypothesis is that the combination of HIV infection and smoking creates chronic oxidant stress in the lower respiratory tract that promotes cellular loss and contributes to the progressive development of emphysema. Preliminary data strongly supports our hypothesis that the accelerated development of emphysema among HIV+ smokers is due in part to the interaction of HIV directly on the macrophage found in the pulmonary alveolus. The interaction causes a release of exaggerated amounts of oxidants in the lower respiratory tract and leads to increased levels of oxidized metabolites. HIV+ individuals with emphysema have high plasma levels of apoptotic pulmonary capillary-derived micro particles that contain oxidized metabolites. The increased release of micro particles is characteristic of an apoptotic process.
We will study this hypothesis by sampling HIV+ and HIV- subjects alveolar macrophages (AM), which are found on the epithelial surface of the lung, and epithelial lining fluid (ELF) found in the lower respiratory tract. We will also assess plasma pulmonary capillary-derived endothelial microparticles (EMPs) as a biomarker for pulmonary apoptosis. Using newly developed mass spectrometry methodologies, we will quantify the oxidant stress of AM, ELF and plasma EMPs, and identify specific oxidized metabolites within each of these compartments. Finally, we will examine the interaction in vitro to tease apart the contribution of each component (AM, ELF, and plasma EMPs) of the interaction.
To assess this concept, the following aims will be addressed:
Specific Aim 1 (n=160). To explore the extent of the oxidant stress in the lower respiratory tract in association with HIV infection and smoking.
Specific Aim 2 (n=160). To evaluate plasma levels of capillary apoptosis and oxidation state of HIV+ nonsmokers and smokers.
Specific Aim 3 (n=160). To examine the interaction of pulmonary capillary endothelium and various oxidant effector components to identify oxidant-vulnerable pathways relevant to the development of new treatment therapies.
- Keywords
- HIV, COPD, Emphysema, Smoking
- Medical subject headings
- Pulmonary Disease, Chronic Obstructive, Emphysema, Smoking
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| HIV Negative Early COPD Smokers | HIV Negative Early COPD Smokers | |
| HIV Negative COPD Smokers | HIV Negative COPD Smokers | |
| HIV Negative Nonsmokers | HIV Negative Nonsmokers | |
| HIV Negative Smokers | HIV Negative Smokers | |
| HIV Positive Smokers | HIV Positive Smokers | |
| HIV Positive Nonsmokers | HIV Positive Nonsmokers | |
| HIV Positive COPD Smokers | HIV Positive COPD Smokers | |
| HIV Positive Early COPD Smokers | HIV Positive Early COPD Smokers |
What is being measured
The primary outcome is the main question the study is designed to answer.
Changes in oxidant stress in the lower respiratory tract in association with HIV infection and smoking
Using samples obtained from subjects the extent and nature of the HIV/smoking-induced oxidant burden of the lower respiratory tract will be assessed.
Measured: One year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Feb 2014 (estimated)
- Study start13 Jan 2014
- Primary completion5 Oct 2015
- Study completion23 Oct 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HIVStudies of the same condition, open and under way.
- More trials run by Weill Medical College of Cornell UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 120 participants (actual)
Sponsor and investigators
- Lead sponsor
- Weill Medical College of Cornell University
- Sponsor type
- University, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Responsible party
- Sponsor
- Investigators
- Ronald G Crystal, MD, Principal investigator, Weill Medical College of Cornell University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02056158
- Sponsor's protocol ID
- 1307014135
- Other IDs
- U01HL121828
- Status last verified
- Sep 2021
- First submitted
- 4 Feb 2014
- Last updated
- 22 Sep 2021
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 22 Sep 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- HIV+ Alveolar Macrophage Oxidant-mediated Apoptosis of Pulmonary Endothelium
- ClinicalTrials.gov ID
- NCT02056158
- Acronym / sponsor ID
- 1307014135
- Keywords
- HIV, COPD, Emphysema, Smoking
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 120 participants (actual)
- Lead sponsor
- Weill Medical College of Cornell UniversityUniversity, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Study start
- 13 Jan 2014 (actual)
- Primary completion
- 5 Oct 2015 (actual)
- Study completion
- 23 Oct 2015 (actual)
- First posted
- 5 Feb 2014 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In HIV+ cigarette smokers, with no prior history of pulmonary infections, emphysema is often developed at an earlier age and is a significant cause of morbidity despite treatment with antiretroviral drugs. Preliminary data gathered from HIV+ individuals that smoke cigarettes strongly support the hypothesis that the combination of HIV infection and smoking creates increased stress in the lower respiratory tract. To examine the underlying factors that contribute to the accelerated development of emphysema in this cohort, samples from the lower respiratory tract will be provided by HIV+ and HIV- subjects. The samples collected will serve as biomarkers for assessing the onset of emphysema.
Detailed description
The purpose of this study is to analyze biologic samples from the blood, airways and/or urine of HIV- and HIV+ smokers and non-smokers to better understand the etiology and pathogenesis of emphysema in association with HIV infection. The underlying hypothesis is that the combination of HIV infection and smoking creates chronic oxidant stress in the lower respiratory tract that promotes cellular loss and contributes to the progressive development of emphysema. Preliminary data strongly supports our hypothesis that the accelerated development of emphysema among HIV+ smokers is due in part to the interaction of HIV directly on the macrophage found in the pulmonary alveolus. The interaction causes a release of exaggerated amounts of oxidants in the lower respiratory tract and leads to increased levels of oxidized metabolites. HIV+ individuals with emphysema have high plasma levels of apoptotic pulmonary capillary-derived micro particles that contain oxidized metabolites. The increased release of micro particles is characteristic of an apoptotic process.
We will study this hypothesis by sampling HIV+ and HIV- subjects alveolar macrophages (AM), which are found on the epithelial surface of the lung, and epithelial lining fluid (ELF) found in the lower respiratory tract. We will also assess plasma pulmonary capillary-derived endothelial microparticles (EMPs) as a biomarker for pulmonary apoptosis. Using newly developed mass spectrometry methodologies, we will quantify the oxidant stress of AM, ELF and plasma EMPs, and identify specific oxidized metabolites within each of these compartments. Finally, we will examine the interaction in vitro to tease apart the contribution of each component (AM, ELF, and plasma EMPs) of the interaction.
To assess this concept, the following aims will be addressed:
Specific Aim 1 (n=160). To explore the extent of the oxidant stress in the lower respiratory tract in association with HIV infection and smoking.
Specific Aim 2 (n=160). To evaluate plasma levels of capillary apoptosis and oxidation state of HIV+ nonsmokers and smokers.
Specific Aim 3 (n=160). To examine the interaction of pulmonary capillary endothelium and various oxidant effector components to identify oxidant-vulnerable pathways relevant to the development of new treatment therapies.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Number of arms
- 8
| Arm | Type | Receives |
|---|---|---|
| HIV Negative Early COPD Smokers | – | –HIV Negative Early COPD Smokers |
| HIV Negative COPD Smokers | – | –HIV Negative COPD Smokers |
| HIV Negative Nonsmokers | – | –HIV Negative Nonsmokers |
| HIV Negative Smokers | – | –HIV Negative Smokers |
| HIV Positive Smokers | – | –HIV Positive Smokers |
| HIV Positive Nonsmokers | – | –HIV Positive Nonsmokers |
| HIV Positive COPD Smokers | – | –HIV Positive COPD Smokers |
| HIV Positive Early COPD Smokers | – | –HIV Positive Early COPD Smokers |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- New York Metropolitan area residents
Key inclusion criteria (9 listed)
- HEALTHY VOLUNTEER RESEARCH SUBJECTS
- All study subjects should be able to provide informed consent
- Males or females ages 18 years and older
- Must provide HIV informed consent
- VOLUNTEER RESEARCH SUBJECTS WITH LUNG DISEASE
Key exclusion criteria (11 listed)
- HEALTHY VOLUNTEER RESEARCH SUBJECTS
- Individuals not deemed in good overall health by the investigator will not be accepted into the study.
- Habitual use of drugs and/or alcohol within the past six months (Acceptable: - Marijuana one time in three months; average of two alcoholic beverages per day; drug and/or alcohol abuse is defined as per the DSM-IV Substance Abuse Criteria).
- Individuals with history of chronic lung disease, including asthma or with recurrent or recent (within three months) acute pulmonary disease will not be accepted into the study.
- Individuals with allergies to atropine or any local anesthetic will not be accepted into the study.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Changes in oxidant stress in the lower respiratory tract in association with HIV infection and smoking
Time frame: One year
Using samples obtained from subjects the extent and nature of the HIV/smoking-induced oxidant burden of the lower respiratory tract will be assessed.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Sep 2021.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ronald G Crystal, MD principal investigator
Weill Medical College of Cornell University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of HIV and COPD, run by Weill Medical College of Cornell University at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 9 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 22 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Changes in oxidant stress in the lower respiratory tract in association with HIV infection and smoking (time frame: One year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Sep 2021.