Alpha 1-Antitrypsin Deficiency

11

Review clinical trials related to Alpha 1-Antitrypsin Deficiency. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Alpha-1 Research Registry

The Alpha-1 Research Registry is a confidential database made up of individuals diagnosed with Alpha-1 Antitrypsin Deficiency (Alpha-1) and individuals identified as Alpha-1 carriers. The Registry was established to facilitate research initiatives and promote the development of improved treatments and a cure for Alpha-1.

Participants needed: 5,000
Trial details
Biological sex: AllType: ObservationalSponsor: Alpha-1 FoundationUpdated: Aug 19, 2026Locations: 1Duration: 3 Years
Eligibility criteria

Patients diagnosed with Alpha-1 Antitrypsin Deficiency (PiZZ, PiZNull, PiSZ etc.... [+1]

Failure to provide informed consent [+1]

Status: Recruiting

A Non-inferiority Pharmacokinetic and Safety/Tolerability Study of Two Different Doses of Weekly SC Alpha1-PI 15% Compared With Corresponding Standard IV Alpha1-PI in Participants With Alpha1-Antitrypsin Deficiency (AATD)

This study is designed to compare two different weekly doses of a medicine called Alpha1-Proteinase Inhibitor given by injection under the skin with the standard doses of the same medicine given through a vein. Adults with Alpha-1 Antitrypsin Deficiency will take part. Participants will be randomly assigned to one of the treatment groups, and both the study doctors and participants will know which treatment is being given. The main goals of the study are to understand how the body processes the medicine (pharmacokinetics) and to assess how safe and well tolerated the different weekly doses are.

Participants needed: 40
Trial details
Phase: Phase 3Age: 18-80Biological sex: AllType: InterventionalSponsor: Grifols Therapeutics LLCUpdated: Aug 11, 2026Locations: 22
Eligibility criteria

Have a diagnosis of congenital AATD with an allelic combination of ZZ, SZ, Z(nul... [+5]

Have had a moderate or severe chronic obstructive pulmonary disease (COPD) exace... [+13]

Status: Recruiting

A Study of AIR-001 in Adults With Alpha-1 Antitrypsin Deficiency (AATD)

This is a Phase 1, open-label, single ascending dose (SAD) and multiple dose (MD) study of AIR-001 in participants with alpha-1 antitrypsin deficiency (AATD) due to PiZZ genotype.

Participants needed: 54
Trial details
Phase: Phase 1Age: 18-74Biological sex: AllType: InterventionalSponsor: AIRNA CorporationUpdated: Jul 24, 2026Locations: 6
Eligibility criteria

Male or female participants >18 years and <75 years of age at the time of signin... [+10]

Female participants who are nursing or lactating [+27]

Status: Recruiting

Development of a Prediction Score for the Occurrence of Death or Lung Transplantation in Patients With Emphysema Secondary to Alpha-1-anti-tripsin Deficiency

Emphysema linked to alpha-1-antitrypsin deficiency (DAAT): towards a better prediction of risks Emphysema caused by alpha-1-antitrypsin deficiency (DAAT) is a rare genetic disorder that can lead to serious complications, such as the need for a lung transplant or death, affecting up to 15% of patients. The only specific treatment available is a weekly infusion of alpha-1-antitrypsin (IV-AAT), an expensive and burdensome therapy. Currently, there is no reliable model to predict the course of the disease in these patients. Our study, conducted in several French hospitals, aims to develop a prediction tool combining clinical, biological, functional data and advanced medical image analysis (lung CT). This model will make it possible to identify the most at-risk patients, in order to better adapt their care, anticipate transplant needs and avoid unnecessary treatments for low-risk patients. Ultimately, this approach could also improve access to care for patients who need it most, while optimizing health system resources.

Participants needed: 230
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: University Hospital, BordeauxUpdated: Jul 20, 2026Locations: 4
Eligibility criteria

diagnosed between 2010 and 2025 [+3]

Age <18 years [+5]

Status: Recruiting

A Study to Evaluate the Safety and Efficacy of BEAM-302 in Adult Patients With Alpha-1 Antitrypsin Deficiency (AATD)

This is a Phase 1/2, multicenter, open-label, dose-exploration (Phase 1) and dose-expansion (Phase 2) study to evaluate the safety, tolerability, PK/PD, and efficacy of BEAM-302 in adult patients with AATD-associated lung disease and/or liver disease and to determine the optimal biological dose (OBD).

Participants needed: 106
Trial details
Phase: Phase 1, Phase 2Age: 18-70Biological sex: AllType: InterventionalSponsor: Beam Therapeutics Inc.Updated: Mar 20, 2026Locations: 11
Eligibility criteria

Males or females 18 - 70 years of age inclusive at the time of consent. [+5]

Body mass index >30 [+17]

Status: Recruiting

Gene Therapy for Alpha 1- Antitrypsin Deficiency

This is a study of gene therapy to treat alpha 1-antitrypsin (AAT) deficiency. This study aims to treat AAT deficiency with a single administration of AAV8hAAT(AVL), a gene therapy that codes for an oxidation resistant form of the AAT protein, which if safe and if efficacious, will protect the lung on a persistent basis. We hope to learn the safety/toxicity and initial evidence of efficacy of intravenous delivery of this gene therapy to alpha 1-antitrypsin deficient individuals.

Participants needed: 16
Trial details
Phase: Phase 1Age: 18-70Biological sex: AllType: InterventionalSponsor: Weill Medical College of Cornell UniversityUpdated: Mar 13, 2026Locations: 1
Eligibility criteria

AAT genotype ZZ, or Z null heterozygotes, and if on augmentation therapy, pre-th... [+6]

Individuals receiving systemic corticosteroids or other immunosuppressive medica... [+14]

Status: Recruiting

PiMZ Longitudinal Cohort (PiMZ Logic)

Alpha-1 Anti-trypsin Deficiency (AATD) is a genetic disease with lung and liver disease presentations. Presentations are variable in the heterozygous population, the most predominant genotype being PiMZ. The purpose of this study in PiMZ heterozygous patients is to examine the density of the lung as measured by chest computed tomography (CT) and determine if existing emphysema predicts changes in the rate of subsequent emphysema or changes in CT, serum or plasma biomarkers of interest. The overarching goal is to develop biomarkers pertinent to the PiMZ patient that can be used in interventional trials since lung function changes do not typically inform disease progression in AATD.

Participants needed: 80
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Columbia UniversityUpdated: Jan 16, 2026Locations: 5Duration: 3 Years
Eligibility criteria

Males and females aged 18 years and older [+6]

AATD non-PiMZ status, including carriers [+17]

Status: Recruiting

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

The Alpha-1 Coded Testing (ACT) Study was established to study genetic testing and outcomes of individuals at risk for alpha-1 antitrypsin deficiency.

Participants needed: 50,000
Trial details
Biological sex: AllType: ObservationalSponsor: University of FloridaUpdated: Nov 24, 2025Locations: 1Duration: 50 Years
Eligibility criteria

Individuals of any age at risk for alpha-1 antitrypsin deficiency on the basis o...

Any person who has already had genotype and AAT level testing completed and has...

Status: Recruiting

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

The purpose of this study is to look at how Alpha-1-antitrypsin (AAT) deficiency and Cystic Fibrosis (CF) affect white blood cells in the lungs, called macrophages, and their ability to work.

Participants needed: 220
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: University of FloridaUpdated: Nov 6, 2025Locations: 1
Eligibility criteria

Signed informed consent [+4]

Pregnancy or breastfeeding [+9]

Status: Recruiting

A Study of KB408 for the Treatment of Alpha-1 Antitrypsin Deficiency

The Sponsor is developing KB408, a replication-defective, non-integrating herpes simplex virus type 1 (HSV-1)-derived vector engineered to deliver functional full-length human SERPINA1 to the airways of people with alpha-1 antitrypsin deficiency (AATD) via nebulization. This study is designed to evaluate safety and pharmacodynamics of KB408 in adults with AATD with a PI\*ZZ or PI\*ZNull genotype. Three planned dose levels of KB408 will be evaluated in single dose escalation cohorts. Repeat dosing will be evaluated at the mid dose level. Subjects taking intravenous AAT augmentation therapy are not required to wash out from IV AAT in the low and mid dose cohorts. In the repeat dose and the high dose cohorts, subjects must wash out from IV AAT for at least 10 days, as applicable.

Participants needed: 15
Trial details
Phase: Phase 1Age: 18-70Biological sex: AllType: InterventionalSponsor: Krystal Biotech, Inc.Updated: Jul 22, 2025Locations: 3
Eligibility criteria

The subject or legally authorized representative must have read, understood, and... [+7]

Pulmonary function test with percent predicted forced expired volume in 1 second... [+25]

Status: Recruiting

Czech AATD Registry

Alpha-1-antitrypsin deficiency is the most common congenital disease of the respiratory system, leading to early pulmonary emphysema or bronchiectasis. Pulmonary involvement significantly accelerates active cigarette smoking. Patients with alpha-1-antitrypsin deficiency may also have liver cirrhosis, vasculitis, skin or intestinal disorders. The AATD Registry is a non-interventional multicenter retrospective prospective longitudinal follow-up of patients with alpha-1-antitrypsin deficiency. The aim of the AATD National Registry is to collect and analyze clinical data in patients with alpha-1 antitrypsin deficiency.

Participants needed: 300
Trial details
Biological sex: AllType: ObservationalSponsor: Thomayer University HospitalUpdated: Jan 5, 2022Locations: 1Duration: 20 Years
Eligibility criteria

Patients with alpha-1-antitrypsin deficiency

Patient disagreement with inclusion in the study