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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Alpha 1-Antitrypsin Clear all
Completed Phase 3 Interventional Results available

The Safety and Tolerability of Alpha-1 Modified Process (MP) In Subjects With Alpha-1-antitrypsin (AAT) Deficiency

NCT00301366
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
alpha-1 proteinase inhibitor (human)
Drug
Lead sponsor
Grifols Therapeutics LLC
Industry
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
8
States / cities
Denver, Colorado • Gainesville, Florida • Miami, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2014 · Synced Sep 28, 2026, 6:47 PM EDT
Suspended No phase listed Observational

Longitudinal Study of Genetic Causes of Intrahepatic Cholestasis (LOGIC)

NCT00571272
View directory record Official record
Conditions
Liver Diseases, Alagille Syndrome, Alpha 1-Antitrypsin Deficiency
Interventions
Not listed
Lead sponsor
Arbor Research Collaborative for Health
Other
Eligibility
Up to 25 Years
Enrollment
1,675 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2029
U.S. locations
16
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 28, 2026, 6:47 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 28, 2026, 6:47 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 28, 2026, 6:47 PM EDT
Completed No phase listed Observational

Prevalence of Alpha-1 Antitrypsin Deficiency in Chronic Obstructive Pulmonary Disease (COPD)

NCT01419158
View directory record Official record
Conditions
Alpha-1 Antitrypsin Deficiency, Chronic Obstructive Pulmonary Disease
Interventions
Not listed
Lead sponsor
Alpha-1 Foundation
Other
Eligibility
18 Years and older
Enrollment
3,457 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
18
States / cities
Los Angeles, California • Denver, Colorado • Gainesville, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 18, 2012 · Synced Sep 28, 2026, 6:47 PM EDT
Withdrawn Phase 2 Interventional

A Research Trial of Aralast NP in New Onset Diabetes (RETAIN) - Part II

NCT01183455
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Aralast NP, Placebo
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
8 Years to 35 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
15
States / cities
La Jolla, California • Aurora, Colorado • New Haven, Connecticut + 10 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2014 · Synced Sep 28, 2026, 6:47 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 28, 2026, 6:47 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Alpha-1 Foundation's and University of Florida's Alpha-1 Coded Testing (ACT) Study

NCT00500123
View directory record Official record
Conditions
Alpha-1 Antitrypsin Deficiency
Interventions
Alpha-1 Antitrypsin Genotype
Procedure
Lead sponsor
University of Florida
Other
Eligibility
Not listed
Enrollment
50,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2050
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Sep 28, 2026, 6:47 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 28, 2026, 6:47 PM EDT
Active, not recruiting No phase listed Observational

Alpha-1 Antitrypsin Disease Cohort: Longitudinal Biomarker Study of Disease

NCT05297812
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency, Genetic Disease
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
286 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
9
States / cities
Birmingham, Alabama • Los Angeles, California • Denver, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Sep 28, 2026, 6:47 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 28, 2026, 6:47 PM EDT
Completed No phase listed Observational Results available

Alpha-1 Carrier Genomics Study

NCT02810327
View directory record Official record
Conditions
Alpha-1 Antitrypsin Deficiency, Emphysema, COPD, Smoking
Interventions
Genetic Sequencing
Genetic
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 21, 2019 · Synced Sep 28, 2026, 6:47 PM EDT
Completed No phase listed Observational

The Use of High Resolution Chest Computed Tomography in Alpha-1 Antitrypsin Deficiency

NCT00532805
View directory record Official record
Conditions
Alpha-1 Antitrypsin Deficiency
Interventions
Not listed
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
7
States / cities
Denver, Colorado • Gainesville, Florida • Boston, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2018 · Synced Sep 28, 2026, 6:47 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 28, 2026, 6:47 PM EDT
Completed No phase listed Observational

The Impact of Delayed Diagnosis of Alpha-1 Antitrypsin Deficiency

NCT03039335
View directory record Official record
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
Not listed
Lead sponsor
Biocerna LLC
Industry
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Fulton, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 15, 2018 · Synced Sep 28, 2026, 6:47 PM EDT
Terminated Phase 2 Interventional Results available

Study of Human Plasma-Derived Alpha1-Proteinase Inhibitor in Subjects With New-Onset Type 1 Diabetes Mellitus

NCT02093221
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
180 mg/kg Alpha1-PI, 90 mg/kg Alpha1-PI, Placebo
Biological
Lead sponsor
Grifols Therapeutics LLC
Industry
Eligibility
6 Years to 35 Years
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
36
States / cities
Tucson, Arizona • Los Angeles, California • Orange, California + 28 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2018 · Synced Sep 28, 2026, 6:47 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 28, 2026, 6:47 PM EDT
Terminated Not applicable Interventional

Environment Effect on Six-Minute Walk Test Performance

NCT02502201
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Alpha-1 Antitrypsin Deficiency
Interventions
six-minute walk study indoors, six-minute walk study outdoors
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Sep 28, 2026, 6:47 PM EDT
Completed Phase 2 Interventional

Efficacy/Safety of HA Inhalation Solution for Hereditary Emphysema in Patients With Alpha-1 Antitrypsin Deficiency

NCT03114020
View directory record Official record
Conditions
Emphysema, Alpha 1-Antitrypsin Deficiency
Interventions
Hyaluronic Acid Inhalation Solution, Placebo Inhalation Solution
Drug
Lead sponsor
Gerard Turino
Individual
Eligibility
18 Years to 80 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
5
States / cities
Miami, Florida • Fayetteville, New York • Charleston, South Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2020 · Synced Sep 28, 2026, 6:47 PM EDT
Completed Phase 2 Interventional Results available

A Proof of Concept Pilot Trial of Alpha-1-Antitrypsin for Pre-Emption Of Steroid-Refractory Acute GVHD

NCT03459040
View directory record Official record
Conditions
Graft-versus-host-disease, GVHD
Interventions
Alpha 1-Antitrypsin
Drug
Lead sponsor
John Levine
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
5
States / cities
Duarte, California • Boston, Massachusetts • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2021 · Synced Sep 28, 2026, 6:47 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 28, 2026, 6:47 PM EDT
Completed Phase 2Phase 3 Interventional Results available

A Study to Assess Safety and PK of Liquid Alpha₁-Proteinase Inhibitor (Human) in Treating Alpha₁-Antitrypsin Deficiency

NCT02282527
View directory record Official record
Conditions
Alpha₁-Antitrypsin Deficiency
Interventions
Liquid Alpha₁-PI, Prolastin-C
Biological
Lead sponsor
Grifols Therapeutics LLC
Industry
Eligibility
18 Years to 70 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
6
States / cities
Denver, Colorado • Gainesville, Florida • Miami, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2017 · Synced Sep 28, 2026, 6:47 PM EDT
Completed Phase 4 Interventional Results available

Anti-inflammatory Therapy to Improve Outcomes After TPIAT

NCT02713997
View directory record Official record
Conditions
Pancreatitis, Chronic; Diabetes; Transplant
Interventions
etanercept, Alpha 1-Antitrypsin
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 28, 2026, 6:47 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 28, 2026, 6:47 PM EDT