Genomic Research in Alpha-1 Antitrypsin Deficiency
Public ClinicalTrials.gov record NCT01832220. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Genomic Research in Alpha-1 Antitrypsin Deficiency and Sarcoidosis (GRADS) - Alpha-1 Protocol
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This project is designed to examine the interaction between the microflora in the lower airway and the concentration of a serum protein called alpha-1 antitrypsin. The hypothesis is that alpha-1 antitrypsin impacts the diversity and content of the lower airway microflora, resulting in a less inflammatory airway. The Specific Aims are: 1. To compare the lower respiratory tract microbiome and virome population diversity and content in age and GOLD stage matched PiZZ individuals not receiving augmentation therapy, PiZZ individuals on augmentation therapy, PiMZ individuals not receiving augmentation therapy, and PiMM individuals with chronic obstructive pulmonary disease (COPD). 2. Determine correlations between bronchoalveolar lavage (BAL) and peripheral blood gene expression patterns and patterns in lung microbial and viral populations across all cohorts. 3. Correlate the presence or absence of computed tomography (CT) bronchiectasis and bronchiolectasis with patterns in the microbiome population diversity and content. 4. To identify and define novel molecular phenotypes of Alpha-1 Antitrypsin Deficiency (AATD) based on computational integration of clinical, transcriptomic, and microbiome data.
Study identification
- NCT ID
- NCT01832220
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 140 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 40 Years to 80 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 2013 (Type not available)
- Primary completion
- Jun 2015 (Actual)
- Completion
- Sep 2015 (Actual)
- Last update posted
- Jan 12, 2016
2013 – 2015
United States locations
- U.S. sites
- 9
- U.S. states
- 8
- U.S. cities
- 9
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Arizona Health Sciences Center | Tucson | Arizona | 85742 | — |
| University of California - San Francisco | San Francisco | California | 94143 | — |
| National Jewish Health | Denver | Colorado | 80206 | — |
| Yale University | New Haven | Connecticut | 06510 | — |
| Johns Hopkins University | Baltimore | Maryland | 21224 | — |
| University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | — |
| University of Pittsburgh | Pittsburgh | Pennsylvania | 15213 | — |
| Medical University of South Carolina | Charleston | South Carolina | 29425 | — |
| Vanderbilt University | Nashville | Tennessee | 37240 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01832220, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 12, 2016 · Synced Oct 21, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT01832220 live on ClinicalTrials.gov.