2025 Research & Science Report

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I M P A C T

2025 RESEARCH & SCIENCE REPORT

Letter from the Scientific Director

Dear Friends,

This year marks the 30 anniversary of the Alpha-1 Foundation (A1F), a significant milestone and an opportunity to reflect on where we have come from, what we have accomplished, and the work that remains to be done. The purpose of this Impact Report is to carry out those tasks and to attempt to measure how effective we have been in accomplishing our goals. Since the last report five years ago, we have made significant progress as a community. We have navigated a pandemic, resumed in-person activities, and overseen a resurgence of research interest in Alpha-1 Antitrypsin Deficiency (AATD).

We can now cheer for multiple new therapeutic modalities being tested in clinical trials, an enviable and unique situation among genetic diseases and a welcome departure from prior years when there were few new treatment options on the horizon. We feel great urgency to make the most of this opportunity, and it is with that urgency in mind that we now take the measure of our prior accomplishments and look ahead.

This report documents the output of a robust and outstanding community of researchers, physicians, A1F staff, and patients working together towards a common goal. I hope you will share in the optimism that I feel when reviewing our progress and the position we now occupy as we look ahead. As always, we are guided and inspired by lessons learned from John and Fred Walsh, who taught us to be impatient in our expectations for progress and to remember to “Keep the Faith.”

Sincerely,

25 years of Alpha-1 Foundationsponsored Research (1999 to 2024)

Promoting research with the vision of finding better treatments and ultimately a cure for AATD has been a major focus of A1F for the past 25 years. Investigatorinitiated grants have been the driving force of A1F’s research program from its inception in 1999, based on the time-tested principle in biomedical discovery that innovative ideas typically arise in the research community. Between 1999 and 2024, over $100 million has been invested in research. Of those funds, approximately 50% was directed at the peer-reviewed investigator-initiated grants program while the remainder was used to organize and publish the proceedings of scientific conferences, and to support the DNA & Tissue Bank and the Alpha-1 Research Registry along with other programs as resources for basic and clinical researchers.

A1F-sponsored research has had a significant impact on our understanding of the mechanisms leading to the clinical manifestations of AATD, and most of this information has been obtained through investigations supported by investigator-initiated grants (Figure 1).

Figure 1 Alpha-1 Foundation investigator-initiated grant program

The program is based on the concept that investigator-initiated research leads to scientific publications and is the basis of scientific meetings, which facilitate cross-pollination, amplifying the impact of new findings and informing the biotech and pharmaceutical companies in their quest for new therapeutic solutions. A1F support has the additional benefit of attracting and retaining the scientific workforce to focus on AATD. This document aims to summarize the scientific contributions of this research from 1999 to 2024.

A1F has issued 85 new grant awards to individual investigators totaling $14.1 million between 2019-2024 since the last impact report.

Applications for A1F funding are increasing. During the COVID-19 pandemic, applications for funding declined as research became more challenging to conduct and the time of physician-researchers was occupied with patient care. Applications for funding were at their lowest in 2020 and remained low for several years but have subsequently rebounded, as indicated in Figure 2. For the 2024-2025 cycle, we received the highest number of letters of intent (LOIs) to submit a grant proposal in the past 10 years.

Applicants come from a variety of institutions and countries: Cutting-edge research that advances the field can happen in many locations around the world. To leverage worldwide expertise in the service of AATD patients, A1F receives and funds research proposals from many different countries, representing many institutions.

Figure 2: FY19-FY26 Submission Breakdown

The home countries of A1F-funded investigators as well as the number of institutions they represent are listed in the charts below:

3: Location of A1F-Funded Investigators

4: Number of Institutions Receiving A1F Funding

Cultivating New Investigators: In addition to generating new knowledge that can benefit AATD patients, A1F support encourages researchers to study AATD, bringing new researchers into the field who in some cases go on to study AATD for long periods of time. Each year, A1F grants are awarded to PIs who have never previously applied for funding, demonstrating how the program functions to recruit new investigators.

Figure
Figure

Figure 5: New Investigators Receiving A1F Funding

Funding levels: The total amount of funds awarded by A1F to support research can vary from year to year based on several factors, including the number of meritorious applications received and availability of funds to commit for this purpose. Following the decline in applications and associated funds awarded from 2020-2022, A1F has increased total funds awarded in support of research grants in the past two fiscal years.

Figure 6: Total Funding from FY19-FY26

Table 1: A1F grantees and research topics from 2018-2024

YEAR GRANTEES

2019 Daniel Hebert, PhD

2019 Elizabeth Sapey, PhD

INSTITUTIONS

University of Massachusetts Amherst

University of Birmingham, UK

RESEARCH TOPICS

Alpha-1-antitrypsin folding and maturation in the cell

Causes of failure of opsonophagocytosis of nontypeable haemophilus influenzae in AATD

2019 Ross Edgar, MRes

2019 Andrew Wilson, MD

2019 Joseph Kaserman, MD

University of Birmingham, UK

Boston University

2019 David Lomas, M.D., PhD

2019 Rita Vanbever, PhD

2019 Bin Zhang, PhD

Boston University

University College London, UK

Universite Catholique De Louvain, Belgium

Cleveland Clinic Foundation

Clinical impact and mechanisms underlying rare variants of AATD

Contribution of Gain of Function Toxicity to AATD Lung Disease Pathogenesis

Defining PiMZ AATD Liver Disease Susceptibility with CRISPR Targeted Syngeneic iPSCs

Development of a diagnostic technology to image Z a1antitrypsin polymers in vivo

Development of a novel form of alpha1-antitrypsin for inhalation

ER-to-Golgi transport of alpha-1-antitrypsin

YEAR GRANTEES

INSTITUTIONS

2019 Andrew Wilson, MD Boston University

RESEARCH TOPICS

Functional characterization of risk modifier gene MAN1B1 in patient-derived hepatocytes

2019 Mariana Kirst, PhD University of Florida

2019 Karina Serban, MD National Jewish Health

2019 Stefanie Krajewski, PhD

2019 Pasquale Piccolo, PhD

2019 Emer Reeves, PhD

University of Tuebingen, Germany

Telethon Institute of Genetics and Medicine, Italy

Royal College of Surgeons in Ireland, Ireland

Gut Microbiota in Alpha-1 Antitrypsin Deficiency Liver Disease

Induced pluripotent stem cells-derived alveolar macrophages phenotype and function in AATD

MessengerRNA as a novel treatment option for alpha-1antitrypsin deficiency

Metabolic alterations in liver disease due to mutant Z alpha1-antitrypsin

Targeting neutrophil driven autoimmunity in patients with alpha-1 antitrypsin deficiency

2019 Susan Ferro-Novick, PhD

University of California, San Diego

2019 Richard Sifers, PhD Baylor College of Medicine

2019 Simon Lam, MD The Cleveland Clinic

The role of autophagy in the degradation of alpha-1 antitrypsin Z variant

Unconventional mechanics responsible for selecting the ATZ monomer for ERAD

Use of Electronic Medical Record and Pharmacy

Prescription Data to Improve Alpha-1 Antitrypsin Deficiency Testing

2020 Arlene Glasgow, PhD Royal College of Surgeons in Ireland

2020 Dawn DeMeo, MD, MPH Brigham and Women's Hospital

2020 Jeffrey Teckman, MD Saint Louis University

2020 Julia Heck, PhD, MPH

University of California, Los Angeles

A role for mitochondrial danger-associated molecular patterns (mtDAMPs) in AAT deficiency

Accelerated Aging and Alpha-1 Antitrypsin Deficiency

Alpha-1 Antitrypsin Deficiency Adult Clinical and Genetic Linkage Study

Birth outcomes among Alpha-1 Families

YEAR GRANTEES

INSTITUTIONS

2020 Gerlic Mordechay, PhD Tel Aviv University, Israel

RESEARCH TOPICS

Cell death mechanisms in the liver pathophysiology of alpha-1 antitrypsin-deficiency

2020 Patrick Geraghty, PhD

2020 Lela Lackey, PhD

2020 Richard Sifers, PhD

State University of New York (SUNY)

University of North Carolina at Chapel Hill

Baylor College of Medicine

2020 Valerie Guoun-Evans, PhD Boston Medical Center Corporation

2020 Scott Gordon, PhD University of Kentucky Research Foundation

2020 Kylie Belchamber, PhD

2020 Derek Russell, MD

2020 Stefan Marciniak, MD, PhD

University of Birmingham, UK

Chemical activation of protein phosphatase 2A to treat alpha-1 antitrypsin deficiency

Developing an accurate model of a-1-antitrypsin protein expression through RNA structure

Early onset end-stage liver disease parameters and model generation

Edited stem cell-based therapy with modified mRNA for AATD-associated liver disease

High Density Lipoprotein Targeting Protease Inhibitors for Preservation of Lung Function

Investigating macrophage phenotype and function in alpha- 1 antitrypsin deficiency

2020 Morten Dahl, MD, PhD

2020 Lynn Fussner, MD

2020 Nicola Brunetti-Pierri, MD

2020 Ross Edgar, MRes

University of Alabama at Birmingham

University of Cambridge, UK

Zealand University Hospital, Denmark

The Ohio State University

Telethon Institute of Genetics and Medicine, Italy

University of Birmingham, UK

Neutrophil-elastase positive exosomes and emphysema in alpha-1 antitrypsin deficiency

Probing biophysical changes in the endoplasmic reticulum during a1-antitrypsin deficiency

Risk of Cardiovascular Disease in Persons with Alpha-1-Antitrypsin ZZ Deficiency

Role of alpha-1 antitrypsin in anti-PR3 positive vasculitis

Role of JNK/c-JUN and CHOP pathways in liver disease induced by mutant Z-AAT

The development of a disease specific patient reported outcome in AATD

YEAR GRANTEES

2020 Robert Foronjy, MD

INSTITUTIONS

State University of New York (SUNY)

RESEARCH TOPICS

The Influence of A1AT on HuR Translocation and Airway Epithelial Cell Senescence

2020 Riccardo Ronzoni, PhD

2021 Andrew Wilson, MD

2021 Paul Ellis, MBChB

2021 Monica Goldklang, MD

University College London, UK

Boston University

University of Birmingham, UK

Columbia University

2021 Jeanine D'Armiento, MD, PhD Columbia University

2021 Keith Robertson, PhD Mayo Clinic

2021 Monica Goldklang, MD Columbia University

2021 Nunzia Pastore, PhD

2021 Richard Sifers, PhD

2021 Craig P. Hersh, MD, MPH

Telethon Institute of Genetics and Medicine, Italy

Baylor College of Medicine

Brigham and Women's Hospital

2021 Nazli Khodayari, PhD University of Florida

Z alpha-1antitrypsin polymers: kinetics of intracellular accumulation and secretion

Alpha-1 Foundation CRC Registry Data Transfer

Cardiovascular outcomes and phenotypes in pulmonary exacerbations of alpha-1 antitrypsin

Columbia University Alpha-1 Foundation Clinical Resource Center Physician Assistant

Direct effect of mutant alpha-1 anti-trypsin on the lung

Discovery and validation of non-invasive epigenetic biomarkers for AATD liver disease

In vivo functional imaging in alpha-1 antitrypsin deficiency

Investigating the effects of mutant a1-antitrypsin on liver cell fate and HCC development

Investigation of infantile endstage liver disease factors

Is COPD in Alpha-1 Antitrypsin MZ carriers the same as COPD in noncarriers?

Novel biomarkers for alpha 1antitrypsin mediated liver disease in circulating exosomes

2021 Bibek Gooptu, MD, PhD

University of Leicester, UK

Structural studies of immunomodulation in alpha1-antitrypsin

YEAR GRANTEES

2021 Maurizio Molinari, PhD

INSTITUTIONS

Fondazione per l'Istituto di Ricerca in Biomedicina Bellinzona, Switzerland

2021 Phillip Bird, PhD Monash University, Australia

RESEARCH TOPICS

The role of ER-to-lysosomeassociated degradation in clearance of polymerogenic ATZ

Use of transgenic zebrafish to identify modulators of Zantitrypsin induced pathology

2022 Jungnam Lee, PhD University of Florida

2022 John Rotondo, PhD University of Ferrara, Italy

2022 Emer Reeves, PhD The Royal College of Surgeons in Ireland

2022 Scott Gordon, PhD University of Kentucky Research Foundation

2022 Stefan Marciniak, MD, PhD University of Cambridge, UK

2022 Karina Serban, MD National Jewish Health

2022 Annamaria Fra, PhD University of Brescia, Italy

2022 Daniel Anderson, PhD Massachusetts Institute of Technology

2022 Lela Lackey, PhD Clemson University

2022 Juncheng Wei, PhD Northwestern University

A high concentration of adefensins impairs macrophage differentiation and function

Alpha-1 antitrypsin protein (AAT) as a possible marker of disease progression in COVID-19 patients

C3d: a key driver of inflammation in patients with alpha-1 antitrypsin deficiency

High Density Lipoprotein Targeting Protease Inhibitors for Preservation of Lung Function

Investigating the role of alpha-1-antitrypsin solidification in disease

Mannose-Binding-Lectin function in Alpha-1 deficiency with Mycobacteria pulmonary disease

Molecular bases of alpha-1antitrypsin functional deficiency

Prime editing therapy for alpha-1 antitrypsin deficiency

Regulation of A1AT expression via nuclear retention of SERPINA1 mRNA

Role of HRD1-METTL14 axis in alpha 1-antitrypsin deficiency induces liver disease

YEAR GRANTEES

2022 Stefanie Krick, MD, PhD

2022 Sheikh Tamir Rashid, MD, PhD

2023 Tomás Carroll, PhD

INSTITUTIONS

The University of Alabama at Birmingham

Imperial College of Science, Technology and Medicine, UK

Royal College of Surgeons in Ireland

RESEARCH TOPICS

Targeting Mucociliary Clearance Pathways in Alpha 1 Antitrypsin Deficiency

The role of LRRK2 in Alpha-1 Antitrypsin Deficiency

A Family Affair - Clarifying the Risk of Lung Disease in ZZ AATD

2023 Monica Goldklang, MD

Columbia University

2023 Jarrett Morrow, PhD

Brigham and Women's Hospital, Inc.

2023 Valerie Gouon-Evans, PhD Boston Medical Center Corporation

Alterations in inflammation and proteases during acute exacerbations of COPD in AATD

Blood and lung microbiome in alpha-1 antitrypsin deficiency

Engineered and edited patient-derived iPSC for AATD-associated liver disease cell therapy

2023 Igor Barjaktarevic, MD

2023 Francesco Annunziata, PhD

David Geffen School of Medicine at University of California Los Angeles

Telethon Institute Of Genetics And Medicine, Italy

2023 Brian Hobbs, MD Brigham and Women's Hospital, Inc.

2023 Monica Goldklang, MD Columbia University

Exploring the role of Nasal Transcriptome in bioprofiling Alpha-1 Antitrypsin Deficiency

Identification and modulation of local and systemic environmental factors in AATD

Inflammatory Protein Biomarkers of Reduced Lung Function in AATD

Longitudinal evaluation of lung disease progression in PiMZ patients

2023 Joseph Kaserman, MD Boston University

2023 Pasquale Piccolo, PhD

2023 Lisa Cabrita, PhD, BSc

Telethon Institute of Genetics and Medicine Italy

University College London, UK

Mechanisms of Hepatic Heterogeneity and ATF6

Mediated Metabolic Dysfunction in AATD

Mitochondrial dysfunction in a1-antitrypsin deficiencyassociated liver disease

Modulating the cotranslational misfolding and polymerisation of antitrypsin

YEAR GRANTEES

2023 Mike Wells, MD

INSTITUTIONS

University of Alabama at Birmingham

RESEARCH TOPICS

Molecular Profiling AATD Respiratory Specimens: A Pilot

2023 Shah Hussain, PhD

University of Alabama at Birmingham

2023 Georgios Sophocleous, PhD University College London, UK

Severity and progression of airway dropout in AAT knockout transgenic ferret model of COPD

Structural and biophysical dissection of the alpha-1 antitrypsin polymerisation pathway

2024 Ariel Curiale, PhD

Brigham and Women's Hospital, Inc.

2024 Emer Reeves, PhD Royal College of Surgeons in Ireland

2024 Carmine Settembre, PhD Fondazione Telethon ETS

AI Approaches to Define Emphysema Progression Risk in PiMZ and PiMS Heterozygous Subjects

Exploring Pro-Resolving Lipid Complexes to Realize the Full Therapeutic Impact of Alpha1

Exploring the Role of FAM134B-MEDIATED ERPHAGY in Alpha-1 Antitrypsin Deficiency

2024 Richard Sifers, PhD Baylor College of Medicine Identification of ESLD Prognostic Indicators

2024 Adel El Boueiz, MD

Brigham and Women's Hospital, Inc

2024 Jungnam Lee, PhD University of Florida

Imaging and Multi-omics Analyses of Emphysema Patterns in MM and MZ smokers

Mechanisms of a-Defensins Mediated Bacterial Infection in AATD Individuals

2024 Lela Lackey, PhD Clemson University

2024 James Irving, PhD University College London

2024 Nunzia Pastore, PhD Fondazione Telethon ETS

Misregulation of Polyadenylation during StressContributes to A1AT Deficiency Phenotypes

Rational Design of Better Diagnostic Reagents

Revealing the Role of Lysosomes in the Pathology of the AATD-Related Liver Disease

YEAR GRANTEES

INSTITUTIONS

2024 Bibek Gooptu, MD, PhD University of Leicester, UK

2025 Mark Murphy, PhD Royal College of Surgeons in Ireland

2025 Kristin Hudock, MD University of Cincinnati

2025 Emily Moser, PhD University of Florida

2025 Florian Rosenberger, PhD Max Planck Institute of Biochemistry

2025 Francesca Polverino, MD, PhD Baylor College of Medicine

2025 Konstantinos Thalassinos, PhD University College London

2025 Shah Hussain, PhD University of Alabama at Birmingham

2025 Sheikh Tamir Rashid, MD, PhD

Imperial College of Science, Technology and Medicine

2025 Devipriya Harinath, PhD Columbia University

RESEARCH TOPICS

Structural Studies of Misfolded and Polymeric Alpha1-Antitrypsin in ERAD and ERLAD

A Detailed Study of Lung Immune Cell Outcomes in AATD

A Novel Strategy to Deliver Intrapulmonary AAT & Limit Lung Destruction in Models of AATD

Alpha-1 Antitrypsin Promotes Vaccine Antibody Responses

Alpha-1 Hepatocyte Dynamics: A Single-Cell and Spatial Proteomics Study

B Cell Adaptive Immune Profile in A1AT DeficiencyAssociated Emphysema

Cellular Effects of A1AT Aggregation with Single-Cell and Crosslinking Proteomics

Characterizing RASCs in AATDeficient Ferrets: Implications for COPD and Distal Airway Remodeling

Deciphering the Molecular Landscape in Alpha-1 Antitrypsin Deficiency Liver Disease

Diversity of SERPINA1 Mutations as Reflected in an Indian Population

2025 Cheryl Pirozzi, MD University of Utah

2025 Vera Khodzhaeva, PhD

Cambridge Institute for Medical ResearchUniversity of Cambridge

Effect of Environmental Exposures in Alpha-1 Antitrypsin Deficiency in the Alpha-1 Biomarker Consortium

FGF21 and Cellular Homeostasis in Alpha1Antitrypsin Deficiency

YEAR GRANTEES

INSTITUTIONS

2025 Suzanne Roche, MB, BCh, BAO Royal College of Surgeons in Ireland

RESEARCH TOPICS

Genetic Discrimination –Tackling a Growing Issue in Alpha-1 Antitrypsin Deficiency

2025 Huiliang Wang, PhD

2025 Leonard Riley, MD

2025 Rhiannon Werder, Ph.D

The University of Texas at Austin

University of Kansas Medical Center Research Institute, Inc

Murdoch Children's Research Institute

2025 Camila Lopes-Ramos, PhD Brigham and Women's Hospital, Inc

2025 Jorge Lascano, MD

University of Florida

Genetic Engineered Exosomes for Efficient DNA Delivery for Alpha-1 Antitrypsin Deficiency

Impact of a Multicenter Best Practice Alert to Improve AATD Testing and Detection

Investigating the Cellular and Molecular Mechanisms of Respiratory Infections in AATD

Multi-omic Sex Differences in Alpha 1 Antitrypsin Deficiency Associated COPD

Nicotine as a Cause of Airway Inflammation and Lung Emphysema in a Novel AATD Mouse Model

2025 Christine Wendt, MD

2025 Karen McDonald, PhD

Center for Veterans Research and Education

University of California Davis

2025 Valerie Gouon-Evans, PhD Boston Medical Center Corporation

2025 Hirofumi Kiyokawa, MD, PhD Boston University

2025 Valentina Schiano, PhD

Fondazione Telethon ETS

2025 Gerry McElvaney, MD, DSc Royal College of Surgeons in Ireland

Prevalence of Alpha 1 Antitrypsin Deficiency amongst Veterans

Production and Characterization of a Biobetter Recombinant AATFc Therapeutic Protein

Promoting Progenitor-Driven Liver Regeneration as an AATD-Associated Liver Disease Therapy

Regeneration of Lung Epithelial Stem Cell Compartments in a Novel ZAAT Mouse Model

Targeting Inflammation as Therapeutic Approach for AATD

The Risk of Lung Disease in People with MZ Alpha-1 Antitrypsin Deficiency

YEAR GRANTEES

INSTITUTIONS

2026 María Magallón, PhD University of Florida

2026 Emily Moser, PhD

2026 Craig Hersh, MD, MPH

2026 Emma Leacy, PhD

2026 Pasquale Piccolo, PhD

University of Florida

Brigham and Women's Hospital, Inc.

RESEARCH TOPICS

AAT Deficiency Impairs WNT Signaling and Leads to Inefficient Epithelial Cell (AT2) Repair

Alpha-1 Antitrypsin Promotes Vaccine Antibody Responses

Characterizing the Lung Inflammatory Milieu in Alpha-1 Antitrypsin Deficiency

2026 Debananda Gogoi, PhD

2026 Vickram Tejwani, MD

Royal College of Surgeons in Ireland

Fondazione Telethon ETS

Royal College of Surgeons in Ireland

Comprehensive Lipidomic Profiling of Bronchoalveolar Lavage Fluid (BALF) in AATD

Development of RNA Aptamers Inhibiting Polymerization of Mutated Z Alpha-1-Antitrypsin

Exploring the Role of MZB1 in Alpha-1 Antitrypsin Deficiency and Disease Pathogenesis

Cleveland Clinic Foundation Exposures Among Those with SERPINA1 Gene Variants

2026 Jingzhou Zhang, MD, MPH Boston University

2026 David LaFon, MD University of Alabama at Birmingham

2026 Shubham Kesarwani, PhD Boston University

2026 Paul Ellis, MBChB, PhD University of Birmingham, UK

2026 Lisa Cabrita, PhD

University College London

Genetic and Proteomic Prediction and Pathways of COPD Risk in Alpha-1 Antitrypsin MZ

Genetic Variation in IgG as a Mechanism for Immune Deficiency and Exacerbations in AATD

Identify the Genetic Risk Modifiers of Hepatotoxicity in Alpha1-Antitrypsin Deficiency

Modeling Quality of Life in AATD: Predictive and Proteomics Insights

Molecular Studies of Antitrypsin's Folding and Polymerisation in the Endoplasmic Reticulum

YEAR GRANTEES

2026 Shunqing Liang, PhD

INSTITUTIONS RESEARCH TOPICS

University of Minnesota - Twin Cities

2026 Sandeep Bodduluri, PhD

2026 Emily van 't Wout, MD, PhD

2026 Lela Lackey, PhD

2026 Nilsson Holguin, PhD

2026 Maurizio Molinari, PhD

2026 Nunzia Pastore, PhD

2026 Leandro Soria, PhD

University of Alabama at Birmingham

Leiden University Medical Center

Clemson University

Icahn School of Medicine at Mount Sinai

Fondazione per l'Istituto di Ricerca in Biomedicina Bellinzona

Fondazione Telethon ETS

Fondazione Telethon ETS

Scientific Impact of A1F Funding:

Prime Editing Strategies to Address the Root Cause of Alpha-1 Antitrypsin Deficiency

Silent Zones of Disease in Alpha-1 Antitrypsin Deficiency

The Role of Polymers in Repair and Regeneration in AATD-Related Emphysema

Translation Regulation of SERPINA1 mRNA Controls A1AT Protein Expression

Treatment of Osteoporosis from Alpha-1 Antitrypsin Deficiency

Understanding the Molecular Mechanisms of Lysosomal Clearance of ATZ Polymers

Unveiling the Role of SOX9 in the Liver Pathology of AATD

Ureagenesis as a Novel Biomarker for AATD Liver Disease

A1F has developed a rigorous process, modeled on the The National Institutes of Health (NIH), to vet grant applications and ensure that our funds support the highest quality research. It is important that we measure the impact of A1F support to validate the efficacy of this approach. We can measure this impact in a variety of ways, including the metrics below:

NIH grant support resulting from A1F funding: NIH is historically the largest funder of biomedical research in the world. We encourage A1F-funded researchers to build on the findings they make with A1F support to apply for additional funding from the NIH. A1F investment of $48.9 million in investigator-initiated proposals from 1999-2025 has subsequently resulted in $732.8 million in funds from the federal government to our awardees, a return-on-investment of approximately $15 per dollar awarded.

Publications resulting from A1F funding: Dissemination of research findings is critical to advance scientific knowledge. A1F-funded investigators are strongly encouraged to publish findings they make with A1F support. From 2018-2025, A1F-funded investigators published 153 articles in scientific journals on all aspects of AATD.

Patents resulting from A1F funding: Research findings have the potential to identify mechanisms or develop techniques with potential therapeutic value. Patent activity is thus an additional measure of impact. Between 2001-2025, A1F funded investigators have filed 48 patent applications.

Impact on Clinical Trials:

A key aspect of our mission is to develop new treatments and ultimately a cure for patients with AATD. In the 5 years since the last impact report, the AAT therapeutic landscape has changed dramatically, with numerous drugs targeting a variety of mechanisms advancing to preclinical development or clinical trials. This evolution reflects a combination of increased understanding of cellular disease mechanisms together with technological advances, particularly in the ability to manipulate gene architecture and expression through a variety of approaches. Our community is fortunate that seminal advances in genetic targeting (collectively including Nobel prize-winning discoveries such as RNA interference and CRISPR, together with gene therapy and RNA editing) that can be applied to many genetic diseases are potentially therapeutically useful in AATD. The development of small molecules to assist in proper folding or stabilize misfolded AAT proteins has likewise shown promise as a novel class of potential therapeutics. Finally, alternative delivery approaches, dosing, and recombinant forms of AAT protein are in ongoing testing and could result in improved efficacy and quality of life for patients.

The rapid progress made in the application of emerging therapies to AATD is in no small part the result of A1F funding. A1F support laid the groundwork that made it possible to identify approaches that were likely to succeed, demonstrate efficacy in preclinical models, and is enabling their successful testing and application for patients suffering from AATD. Over a 25 year period, A1F-funded researchers have established a broad understanding of the disease, ranging from basic disease mechanisms to the clinical experience of affected patients.

This knowledge base is now being applied in many ways for trial design and implementation, from identifying which patients with AATD are most likely to benefit from specific therapeutic approaches to determining how to measure the success of drugs in development.

In addition to direct funding of research in the form of grant support, the A1F has invested significantly in infrastructure designed to facilitate and promote the success of the aforementioned clinical trials. This support includes:

The Alpha-1 Research Registry: The Alpha-1 Research Registry includes data from more than 4,000 individuals including >1,300 with severe AATD. In addition to its utility as a tool for investigators to address questions of natural history, the registry helps to connect patients with clinical studies that they may qualify for based on their demographic and clinical characteristics. Registry staff have been successful in helping to recruit Alphas to participate in ongoing clinical trials of emerging therapeutics.

The Therapeutic Development Network (TDN): To identify patients interested in participating in clinical trials and who live in proximity to clinical trial sites as a complement to the Alpha-1 Research Registry, the A1F created the TDN. The TDN consists of 20 centers across the US that have agreed to participate in upcoming clinical trials. Each site enrolls local patients and collects a set of data about each enrolled participant that includes the basic inclusion and exclusion criteria for most clinical trials. The resulting database is then a resource for identifying potential clinical trial participants across the country.

The Alpha-1 Biomarkers Consortium (A1BC): In order to design and execute clinical trials, industry partners need biomarkers that are established and recognized by the FDA to correlate with disease severity and progression. The A1BC is a consortium of A1F Clinical Resource Centers (CRCs) funded by the NIH and A1F that has enrolled > 270 severely deficient (ZZ) patients. These centers are collecting longitudinal data and biosamples from this cohort to develop the biomarkers that can then be used as clinical trial endpoints.

The DNA and Tissue Bank: Established in 2001, the bank includes a data repository together with plasma samples and genomic DNA from 2,849 participants, including 812 ZZ, 501 MZ, 88 SZ, 115 MS, and 342 rare alleles. This resource provides the ability to connect DNA sequence with disease phenotype and clinical characteristics and is a tool for addressing research questions about the genetic basis of AATD.

Looking Ahead:

As we look to the future, we see many reasons for optimism. Much of this optimism relates to the clinical trials that have recently started and are anticipated to start in the upcoming 24 months. To ensure that the promise of this moment is realized, A1F will take the following actions in the next 5 years:

Facilitate the success of clinical trials: To ensure the success of clinical trials, we will take several key steps: First, we will continue to support the A1BC and its efforts to identify radiologic and serum biomarkers associated with specific disease states that can similarly inform clinical trials. Second, we will continue to invest in the Alpha-1 Research Registry and the TDN. Finally, we will continue our partnership with the Critical Path Institute and our industry partners to establish endpoints that the FDA will embrace in clinical trials.

Increase detection of Alphas: It is estimated that only 15% of severely deficient patients with AATD have been identified. It is critical that we increase the detection of Alphas both to facilitate clinical trial enrollment and also to identify severely deficient patients earlier in the course of disease when they are more likely to benefit from treatment. To increase detection, we will continue our recent investment in AlphaDetect, a new non-profit subsidiary of A1F, that will lead a transformative initiative that unifies all community stakeholders – patients, healthcare providers, advocates, and industry partners – with a collective common purpose: to ensure no Alpha-1 patient is left undetected.

Invest in research infrastructure: By developing tools that facilitate the ability of researchers to ask questions, we can increase their ability to make discoveries that will benefit Alphas in the years to come. To do so, we will continue to build the natural history component of the Alpha-1 Research Registry to enhance its value for research purposes. We will likewise continue to build genetic data capabilities to facilitate the ability to connect genotypes to phenotypes and continue to invest in human capital through support for the careers of early-stage investigators to sustain a pipeline of scientific expertise in AATD. Finally, we will continue to fund cutting edge research that will produce discoveries that will enable development of the next generation of treatments for AATD.

Increase CRC availability to patients: To get the best care available, patients need access to physicians and allied health professionals with AATD expertise. To increase the availability of such expertise, we will continue to identify and cultivate physicians with AATD expertise, in particular those specializing in pediatric gastroenterology and adult gastroenterology. We will specifically work to increase the number of Clinical Resource Centers in areas of the country that are currently less well represented.

In summary, A1F is working on many fronts and will continue to do so to accomplish the best possible outcomes for Alphas to achieve our mission of finding a cure for Alpha-1.

The Alpha-1 Foundation (A1F) is committed to finding a cure for Alpha-1 Antitrypsin Deficiency (Alpha-1) and to improving the lives of people affected by Alpha-1 worldwide.

ALPHA1.ORG

1 (877) 2 CURE A1 | 1 (877) 228-7321

3300 Ponce de Leon Blvd Coral Gables, FL 33134

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