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Showing 1–24 of 93 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Alpha-1 antitrypsin (AAT) Clear all
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 27, 2026, 1:19 PM EDT
Completed Phase 2 Interventional Results available

Multicenter Trial of the Effect of AAT on Islet Transplant Engraftment and Durability After Renal Transplant

NCT02464878
View directory record Official record
Conditions
Kidney Transplant, Type 1 Diabetes
Interventions
Alpha 1-Antitrypsin, Islet Transplantation, Thymoglobulin, Basiliximab, Etanercept
Drug · Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 21, 2023 · Synced Sep 27, 2026, 1:19 PM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Efficacy of (α1Proteinase Inhibitor, α1PI) in HIV Disease

NCT01731691
View directory record Official record
Conditions
HIV Disease
Interventions
α1 Proteinase Inhibitor, Placebos
Biological · Drug
Lead sponsor
Institute for Human Genetics and Biochemistry
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 30, 2020 · Synced Sep 27, 2026, 1:19 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 27, 2026, 1:19 PM EDT
Completed Not applicable Interventional

Evaluation of the Spiration® Valve System for Emphysema to Improve Lung Function

NCT01812447
View directory record Official record
Conditions
Emphysema
Interventions
Spiration Valve System, Medical Management
Device · Other
Lead sponsor
Olympus Corporation of the Americas
Industry
Eligibility
40 Years and older
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2022
U.S. locations
32
States / cities
Fort Smith, Arkansas • Riverside, California • San Diego, California + 28 more
Source: ClinicalTrials.gov public record
Updated May 30, 2024 · Synced Sep 27, 2026, 1:19 PM EDT
Enrolling by invitation Phase 3 Interventional

Long Term Safety of Alpha1-Proteinase Inhibitor in Subjects With Alpha1 Antitrypsin Deficiency

NCT02796937
View directory record Official record
Conditions
Pulmonary Emphysema in Alpha-1 Antitrypsin Deficiency
Interventions
Alpha-1 MP
Biological
Lead sponsor
Grifols Therapeutics LLC
Industry
Eligibility
20 Years to 72 Years
Enrollment
290 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2029
U.S. locations
6
States / cities
Phoenix, Arizona • Miami, Florida • Wilmington, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 27, 2026, 1:19 PM EDT
Recruiting No phase listed Observational

PiMZ Longitudinal Cohort (PiMZ Logic)

NCT06505603
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency, Emphysema or COPD
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
5
States / cities
Birmingham, Alabama • Los Angeles, California • Denver, Colorado + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Sep 27, 2026, 1:19 PM EDT
Recruiting Phase 1Phase 2 Interventional

A Study of TSRA-196 in Adults With PiZZ Alpha-1 Antitrypsin Deficiency (AATD)

NCT07227207
View directory record Official record
Conditions
Alpha-1 Antitrypsin Deficiency (AATD)
Interventions
TSRA-196
Drug
Lead sponsor
Tessera Therapeutics, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
5
States / cities
Jacksonville, Florida • Boston, Massachusetts • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Sep 27, 2026, 1:19 PM EDT
Withdrawn Phase 1 Interventional

Pilot Study of alpha1-antitrypsin to Treat Neuromyelitis Optica Relapses

NCT02087813
View directory record Official record
Conditions
Neuromyelitis Optica
Interventions
Alpha1-antitrypsin, methylprednisolone
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2014
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 11, 2019 · Synced Sep 27, 2026, 1:19 PM EDT
Completed Phase 4 Interventional Results available

Zemaira in Subjects With Emphysema Due to Alpha1-Proteinase Inhibitor Deficiency

NCT00261833
View directory record Official record
Conditions
Alpha1-proteinase Inhibitor Deficiency, Emphysema
Interventions
Alpha1-proteinase inhibitor, Placebo
Biological · Other
Lead sponsor
CSL Behring
Industry
Eligibility
18 Years to 65 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
4
States / cities
Denver, Colorado • Miami, Florida • Hershey, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 18, 2015 · Synced Sep 27, 2026, 1:19 PM EDT
Recruiting Phase 2 Interventional

Zemaira Eosinophilic Esophagitis Pilot Study

NCT05485155
View directory record Official record
Conditions
Eosinophilic Esophagitis
Interventions
Alpha-proteinase inhibitor
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Bethesda, Maryland • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 27, 2026, 1:19 PM EDT
Completed No phase listed Observational

Liver Fibrosis in Alpha-1 Antitrypsin Deficiency (Liver AATD)

NCT01810458
View directory record Official record
Conditions
Liver Fibrosis, Alpha-1 Antitrypsin Deficiency, AAT Deficiency, AATD
Interventions
Abdominal ultrasound, History and physical, Intravenous catheter, Blood draw, Liver questionnaire, Liver Biopsy, Midazolam, Fentanyl, Lidocaine, Acetaminophen, Lorazepam, Oxycodone/Acetaminophen, Ondansetron
Device · Procedure · Other + 1 more
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 70 Years
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Sep 27, 2026, 1:19 PM EDT
Terminated Phase 2Phase 3 Interventional

The Safety and Efficacy of Alpha-1 Antitrypsin (AAT) for the Prevention of Graft-versus-host Disease (GVHD) in Patients Receiving Hematopoietic Cell Transplant

NCT03805789
View directory record Official record
Conditions
Acute-graft-versus-host Disease
Interventions
AAT, Placebo
Biological
Lead sponsor
CSL Behring
Industry
Eligibility
12 Years and older
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
12
States / cities
Scottsdale, Arizona • St. Petersburg, Florida • Atlanta, Georgia + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 27, 2026, 1:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Shear Wave Sonoelastography in Pediatric Liver Fibrosis

NCT02372682
View directory record Official record
Conditions
Sonoelastography, Elastography, Elastograms, Liver Fibrosis, Hepatic Fibrosis, Cirrhosis, Pediatrics
Interventions
Shear wave sonoelastography
Device
Lead sponsor
St. Louis University
Other
Eligibility
Up to 18 Years
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 11, 2019 · Synced Sep 27, 2026, 1:19 PM EDT
Terminated Phase 2 Interventional Results available

Carbamazepine in Severe Liver Disease Due to Alpha-1 Antitrypsin Deficiency

NCT01379469
View directory record Official record
Conditions
Alpha-1-antitrypsin Deficiency, Liver Cirrhosis
Interventions
Drug-Carbamazepine (Tegretol XR), Carbamazepine (Tegretol XR) Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
14 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
3
States / cities
St Louis, Missouri • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 11, 2021 · Synced Sep 27, 2026, 1:19 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 27, 2026, 1:19 PM EDT
Terminated Phase 4 Interventional Results available

Aralast alpha1-proteinase Inhibitor Surveillance Study

NCT00313144
View directory record Official record
Conditions
Alpha1-antitrypsin Deficiency
Interventions
ARALAST Alpha1-Proteinase Inhibitor
Drug
Lead sponsor
Baxalta now part of Shire
Industry
Eligibility
18 Years and older
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
San Marino, California
Source: ClinicalTrials.gov public record
Updated May 25, 2021 · Synced Sep 27, 2026, 1:19 PM EDT
Completed Phase 3 Interventional Results available

Treatment of GVHD in Hematopoietic Stem Cell Transplant (HSCT) Recipients Using AAT Plus Corticosteroids (CS) Compared With Corticosteroids Alone

NCT04167514
View directory record Official record
Conditions
Graft Versus Host Disease (GVHD)
Interventions
Alpha-1 antitrypsin (AAT), Placebo
Biological · Drug
Lead sponsor
CSL Behring
Industry
Eligibility
12 Years and older
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
25
States / cities
Stanford, California • Gainesville, Florida • Tampa, Florida + 20 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Sep 27, 2026, 1:19 PM EDT
Active, not recruiting Phase 3 Interventional

Efficacy and Safety of Alpha1-Proteinase Inhibitor (Human), Modified Process (Alpha-1 MP) in Subjects With Pulmonary Emphysema Due to Alpha1 Antitrypsin Deficiency (AATD)

NCT01983241
View directory record Official record
Conditions
Pulmonary Emphysema in Alpha-1 PI Deficiency
Interventions
Alpha-1 MP, 0.9% Sodium Chloride for Injection, USP
Biological · Other
Lead sponsor
Grifols Therapeutics LLC
Industry
Eligibility
18 Years to 70 Years
Enrollment
345 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
10
States / cities
Phoenix, Arizona • Gainesville, Florida • Leesburg, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 27, 2026, 1:19 PM EDT
Recruiting No phase listed Observational

DREAM: Double Lung Transplant REgistry Aimed for Lung-limited Malignancies

NCT05671887
View directory record Official record
Conditions
Lung Cancer, Bilateral Cancer, Lung Transplant
Interventions
Double Lung Transplantation
Procedure
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 75 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2032
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 13, 2024 · Synced Sep 27, 2026, 1:19 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 27, 2026, 1:19 PM EDT
Completed Phase 1Phase 2 Interventional

A Study to Evaluate Safety, Tolerability and Pharmacokinetics of Two Different Doses of Alpha1-Proteinase Inhibitor Subcutaneous (Human) 15% in Participants With Alpha1-Antitrypsin Deficiency

NCT04722887
View directory record Official record
Conditions
Alpha1-Antitrypsin Deficiency
Interventions
Alpha-1 15%, Liquid Alpha1-Proteinase Inhibitor (Human)
Biological
Lead sponsor
Grifols Therapeutics LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
5
States / cities
Los Angeles, California • Gainesville, Florida • Miami, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Sep 27, 2026, 1:19 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Alpha-1 Antitrypsin (AAT) Enhances Islet Autograft Survival in Patients With Chronic Pancreatitis

NCT02947087
View directory record Official record
Conditions
Chronic Pancreatitis
Interventions
Prolastin-C, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 28, 2023 · Synced Sep 27, 2026, 1:19 PM EDT
Completed Phase 2 Interventional

Study of SAR447537 (INBRX-101) Compared to Plasma-derived A1PI Therapy in Adults With AATD Emphysema

NCT05856331
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency, Emphysema
Interventions
SAR447537, Zemaira
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 80 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
39
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 18 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2025 · Synced Sep 27, 2026, 1:19 PM EDT