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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: AAT Deficiency Clear all
Completed Phase 1 Interventional Results available

Experimental Gene Transfer Procedure to Treat Alpha 1-Antitrypsin (AAT) Deficiency

NCT00430768
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
rAAV1-CB-hAAT
Biological
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
2
States / cities
Gainesville, Florida • Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 14, 2016 · Synced Sep 12, 2026, 2:43 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Alpha-1 Foundation Research Registry

NCT00499941
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
Not listed
Lead sponsor
Medical University of South Carolina
Other
Eligibility
Not listed
Enrollment
6,655 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2021
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 2, 2021 · Synced Sep 12, 2026, 2:43 PM EDT
Active, not recruiting No phase listed Observational

Alpha-1 Antitrypsin Deficiency Adult Liver Study

NCT02014415
View directory record Official record
Conditions
Alpha-1 Antitrypsin Deficiency
Interventions
Liver Biopsy (Biopsy Group Only)
Procedure
Lead sponsor
St. Louis University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
3
States / cities
San Diego, California • Boston, Massachusetts • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 12, 2026, 2:43 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Identification of Genes Associated With Lung Disease in Patients With Rheumatoid Arthritis

NCT00001885
View directory record Official record
Conditions
Healthy, Pulmonary Fibrosis, Rheumatoid Arthritis
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
21 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Phase 2 Interventional Results available

Targeting Pulmonary Perfusion in Alpha-1 Antitrypsin Deficiency

NCT03008915
View directory record Official record
Conditions
Alpha-1 Antitrypsin Deficiency, Emphysema, Chronic Obstructive Pulmonary Disease
Interventions
Aspirin, Placebo, Withdrawal from alpha1 antitrypsin replacement therapy
Drug · Other
Lead sponsor
Columbia University
Other
Eligibility
40 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 16, 2021 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Phase 3 Interventional Results available

GLASSIA Safety, Immunogenicity, and Bronchoalveolar Lavage Study

NCT02525861
View directory record Official record
Conditions
Alpha1-antitrypsin Deficiency
Interventions
GLASSIA
Biological
Lead sponsor
Baxalta now part of Shire
Industry
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
17
States / cities
Tucson, Arizona • Los Angeles, California • Sacramento, California + 13 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2021 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Phase 2 Interventional Results available

Safety and Pharmacokinetics of Alpha-1 Proteinase Inhibitor in Subjects With Alpha1-Antitrypsin Deficiency

NCT01213043
View directory record Official record
Conditions
Emphysema, Alpha 1-antitrypsin Deficiency (AATD)
Interventions
Prolastin-C, 60 mg/kg, Prolastin-C, 120 mg/kg
Biological
Lead sponsor
Grifols Therapeutics LLC
Industry
Eligibility
18 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
5
States / cities
Gainesville, Florida • Miami, Florida • Philadelphia, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated May 19, 2013 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Phase 2 Interventional Results available

Evaluation of the Efficacy and Safety of VX-864 in Subjects With the PiZZ Genotype

NCT04474197
View directory record Official record
Conditions
Alpha1-Antitrypsin Deficiency
Interventions
VX-864, Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 80 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
22
States / cities
Birmingham, Alabama • Los Angeles, California • Sacramento, California + 19 more
Source: ClinicalTrials.gov public record
Updated May 25, 2022 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Phase 2 Interventional

A 12-week Study Treating Participants Who Have alpha1-antitrypsin-related COPD With Alvelestat (MPH966) or Placebo.

NCT03636347
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency, Emphysema, COPD
Interventions
Placebo Oral Tablet, Alvelestat oral tablet - dose 1, Alvelestat oral tablet - dose 2
Drug
Lead sponsor
Mereo BioPharma
Industry
Eligibility
18 Years to 75 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
4
States / cities
Birmingham, Alabama • Los Angeles, California • Sacramento, California + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2022 · Synced Sep 12, 2026, 2:43 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Alpha-1 Foundation DNA and Tissue Bank

NCT00884455
View directory record Official record
Conditions
Alpha 1 Antitrypsin Deficiency
Interventions
Not listed
Lead sponsor
University of Florida
Other
Eligibility
0 Years to 100 Years
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2033
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Sep 12, 2026, 2:43 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

HPTN 073 Black Men Who Have Sex With Men (MSM) Pre-Exposure Prophylaxis (PrEP)

NCT01808352
View directory record Official record
Conditions
HIV
Interventions
Observational
Other
Lead sponsor
HIV Prevention Trials Network
Network
Eligibility
18 Years and older · Male only
Enrollment
226 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
3
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 6, 2025 · Synced Sep 12, 2026, 2:43 PM EDT
Recruiting Phase 1 Interventional

Gene Therapy for Alpha 1- Antitrypsin Deficiency

NCT06996756
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
AAV8hAAT(AVL)
Biological
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

GLASSIA Infusion Rate Study

NCT01651351
View directory record Official record
Conditions
Alpha1-antitrypsin Deficiency, Healthy Volunteers
Interventions
Alpha1-proteinase inhibitor, Placebo: Human albumin 2.5%
Biological
Lead sponsor
Baxalta now part of Shire
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated May 24, 2021 · Synced Sep 12, 2026, 2:43 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Characterization of the Pathobiology of Early Lung Destruction in Alpha 1-Antitrypsin Deficient Individuals

NCT00001462
View directory record Official record
Conditions
Emphysema, Lung Diseases, Obstructive, Alpha 1-Antitrypsin Deficiency
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1995 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Not applicable Interventional Results available

Ex-vivo Perfusion and Ventilation of Lungs Recovered From Non-Heart-Beating Donors to Assess Transplant Suitability

NCT01615484
View directory record Official record
Conditions
Emphysema, Chronic Obstructive Pulmonary Disease (COPD), Cystic Fibrosis, Pulmonary Fibrosis, Bronchiectasis, Sarcoidosis, Pulmonary Hypertension, Alpha-1 Antitrypsin Deficiency
Interventions
Transplantation of lungs obtained from Non-Heart-Beating Donors (NHBDs) after ex-vivo perfusion w/ STEEN Solution™, STEEN Solution™
Procedure · Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
15 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 7, 2018 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Phase 2 Interventional Results available

Safety and Tolerability Trial of Inhaled Alpha1-Proteinase Inhibitor (Human), Hydrophobic Chromatography Process (Alpha-1 HC) in Subjects With Cystic Fibrosis

NCT01684410
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Alpha-1 HC 100 mg, Placebo, Alpha-1 HC 200 mg
Biological
Lead sponsor
Grifols Therapeutics LLC
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
6
States / cities
Birmingham, Alabama • Denver, Colorado • Boston, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2016 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Early Phase 1 Interventional

Experimental Gene Transfer Procedure to Treat Alpha 1-Antitrypsin Deficiency

NCT00377416
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
rAAV2-CB-hAAT Gene Vector
Genetic
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2020
U.S. locations
2
States / cities
Gainesville, Florida • Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 9, 2020 · Synced Sep 12, 2026, 2:43 PM EDT
Terminated No phase listed Observational

Study of Genotype and Phenotype in Patients With Alpha 1-Antitrypsin Deficiency

NCT00005098
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
Not listed
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
0 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 12, 2026, 2:43 PM EDT
Completed No phase listed Observational

Genomic Research in Alpha-1 Antitrypsin Deficiency

NCT01832220
View directory record Official record
Conditions
Alpha 1 Antitrypsin Deficiency, AATD
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
40 Years to 80 Years
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
9
States / cities
Tucson, Arizona • San Francisco, California • Denver, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 11, 2016 · Synced Sep 12, 2026, 2:43 PM EDT
Recruiting Phase 4 Interventional

Genetic Variation in IgG in Alpha 1 Antitrypsin Deficiency

NCT07135427
View directory record Official record
Conditions
Alpha 1-Antitrypsin, COPD, Antibody Deficiency
Interventions
20-valent pneumococcal conjugate vaccine
Biological
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 12, 2026, 2:43 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Lung Disease and Its Affect on the Work of White Blood Cells in the Lungs

NCT01851642
View directory record Official record
Conditions
Alpha-1 Antitrypsin Deficiency, AAT Deficiency, AATD, Cystic Fibrosis (CF)
Interventions
History and physical exam., Blood draw., Pulmonary function testing., Albuterol inhaler.
Procedure · Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2033
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 12, 2026, 2:43 PM EDT
Terminated Phase 2 Interventional Results available

A Study of Belcesiran in Patients With AATLD

NCT04764448
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
Belcesiran, Placebo
Drug · Other
Lead sponsor
Dicerna Pharmaceuticals, Inc., a Novo Nordisk company
Industry
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
3
States / cities
La Jolla, California • Gainesville, Florida • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 12, 2026, 2:43 PM EDT
Recruiting No phase listed Observational

A Study in Adults to Learn About Inherited Alpha-1 Antitrypsin Deficiency (AATD) and AATD Related Liver Problems

NCT06512454
View directory record Official record
Conditions
Alpha1-Antitrypsin Deficiency
Interventions
No Intervention
Other
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
3
States / cities
Gainesville, Florida • Charleston, South Carolina • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 12, 2026, 2:43 PM EDT
Completed Phase 2Phase 3 Interventional

Phase II/III Study of an Alpha-1 Proteinase Inhibitor (Kamada-API) in Individuals With Alpha-1 Antitrypsin Deficiency

NCT00460096
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
Kamada-API
Drug
Lead sponsor
Kamada, Ltd.
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
3
States / cities
Denver, Colorado • Gainesville, Florida • Tyler, Texas
Source: ClinicalTrials.gov public record
Updated Oct 16, 2007 · Synced Sep 12, 2026, 2:43 PM EDT