WORLDSymposium 2025 Preliminary Program on Lysosomal Diseases

On Monday afternoon, WORLDSymposium presented an exciting program, The Patient Voice 2025: Inequities in Access to Diagnosis, Care and Clinical Trials in Lysosomal Diseases The goal of this 1-hour CE-session is to discuss population inclusion and access to care and clinical trials regardless of diversity and socioeconomics, with a focus on improving patient care globally.

Following the Patient Voice session, the 3rd Annual Speed Mentoring Event offered a once-in-a-lifetime opportunity for attendees to meet with a wide variety of leaders and icons from the lysosomal and rare disease space. The evening concluded by celebrating 21 Years of WORLDSymposium, with the 3rd Annual “Be the Catalyst” event, an exciting event, open to all WORLDSymposium participants. This event provided opportunities to participate in all of the fun scheduled group photos, reconnect with colleagues, make new connections, establish new relationships, welcome new attendees, and celebrate the achievements of past and present WORLDSymposium Award Recipients. Download the WORLDSymposium 2025 program (PDF 200KB).

The Patient Voice 2025Inequities in Access to Diagnosis, Care and Clinical Trials in Lysosomal Diseases
15:00Terri Klein (Chair)
National MPS Society
Durham, North Carolina, USA
Welcome & Introduction
15:05Cyndi Frank 
Co-President, Co-Founder
Gaucher Community Alliance
Sonoma, California, USA
A Patient’s Perspective  
15:20Jenifer Waldrop
Rare Disease Diversity Coalition (RDDC)
Denver, Colorado, USA
The Inequities in the Rare Disease Community
15:35Terri Klein
National MPS Society
Durham, North Carolina, USA
From Awareness to Action: Equity in Rare Disease Outcomes
15:50Panel Discussion and Audience Q&A
16:00Adjourn
16:30Speed Mentoring
18:00Be the Catalyst Event

After the presentation of the Innovation Award, the formal scientific sessions of WORLDSymposium 2025 officially began with presentations on laboratory research for lysosomal disease. Presentations during the Basic Science sessions are designed to improve our understanding or prediction of the phenomena involved in lysosomal pathology at a molecular, cellular, and animal model level in order to forwardly think about diagnosis and treatment of lysosomal conditions. These Basic Science sessions are always innovative and present the latest findings in the field. Download the WORLDSymposium 2025 program (PDF 200KB).

Basic Science

Co-Chairs: Lalitha Belur, Michael Przybilla, Dan Tagle

06:45Satellite Symposia
08:00Chester B. Whitley
University of Minnesota
Minneapolis, MN, United States
Welcome and Announcements
Presentation of 2025 Roscoe O. Brady Award to James M. Wilson
James M. Wilson
GEMMABio
Philadelphia, PA, United States
Roscoe O. Brady Award Presentation
Lysosomal Diseases: A paradigm for personalized medicine
08:30Françoise Piguet
Paris Brain Institute
Paris, France
Development and validation of an intravenous AAV gene therapy for mucopolysaccharidosis type IIIB in mouse and dog model of the pathology
Pratikshya Adhikari
The University of North Carolina at Chapel Hill
Chapel Hill, NC, United States
AAV9-based gene replacement therapy targeting the root cause for the treatment of MPS IIID in mice

*2025 Young Investigator Award Recipient
Andres Felipe Leal
Nemours Children’s Health
Wilmington, DE, United States
Uncovering mitochondrial disturbances in MPS IVA chondrocytes

*2025 Young Investigator Award Recipient
Angelica Maria Herreno Pachon
University of Delaware
Wilmington, DE, United States
CRISPR/Cas9-edited hematopoietic stem cells rescue MPS IVA fibroblasts phenotype

*2025 Young Investigator Award Recipient
Moderated Q&APiguet, Adhikari, Leal, Herreno Pachon
09:30Lachlan J. Smith
University of Pennsylvania
Philadelphia, PA, United States
Postnatal progression of skeletal disease in mucopolysaccharidosis type VI dogs: Preliminary findings
Maria Fuller
SA Pathology
North Adelaide, Australia
Utility of signature specific biomarkers for the mucopolysaccharidoses: 8 years experience in the diagnostic laboratory
Shih-Chang Hsueh
Columbia University Irving Medical Center
New York, NY, United States
A cyclic oligosaccharide structure as a novel therapeutic strategy for Krabbe disease
Rachel Wurth
Mayo Clinic
Rochester, MN, United States
Characterizing and validating the small molecule signature of Krabbe disease plasma using untargeted metabolomics analysis
Moderated Q&ASmith, Fuller, Hsueh, Wurth
10:30Break
11:00Chester B. Whitley
University of Minnesota
Minneapolis, MN, United States
PS Gene-editing system corrects the CNS with blood-brain barrier penetrant ApoE-enzymes
Ewa A. Ziolkowska
Washington University School of Medicine
St. Louis, MO, United States
Treatment of dysphagia associated pathologies in CLN3 deficient mice via gene therapy

*2025 Young Investigator Award Recipient
Nathan Phan
University of Minnesota
Minneapolis, MN, United States
Biomarker potential of allele-specific extracellular vesicles in Gaucher disease
Parisa Amirifar
Duke University Medical Center
Durham, NC, United States
Enzyme replacement therapy (ERT) combined with transient low-dose methotrexate (TLD-MTX) results in age- and disease-dependent immune profile changes in infantile- vs. late-onset Pompe disease patients
Moderated Q&AWhitley, Ziolkowska, Phan, Amirifar
12:00Break and Satellite Symposia
13:30Allan Feng
Stanford University
Stanford, CA, United States
A novel murine model for neuronopathic Gaucher disease

*2025 Young Investigator Award Recipient
Shu Xing
Yale University School of Medicine
New Haven, CT, United States
Apoe-Abca1 axis is involved in the pathogenesis of Gaucher disease
Luisa Natalia Pimentel Vera
Stanford University
Palo Alto, CA, United States
Correction of GD1 pathology by genome edited murine hematopoietic stem cell transplantation
Magali Pettazzoni
Lyon University Hospital
Lyon, France
When technology improves diagnosis: Incidental discovery of ASMD in patients suspected with Gaucher disease
Moderated Q&AFeng, Xing, Pimentel Vera, Pettazzoni
14:30David Dmitrivich Smerkous
University of Washington
Seattle, WA, United States
Quantification of globotriaosylceramide (GL3) in peritubular capillary endothelial cells (PTCEC) in kidney biopsies from patients with Fabry disease using machine learning
Abdullah Hoter
University of Veterinary Medicine Hannover
Hannover, Germany
Cellular uptake and function of recombinant pegunigalsidase alfa in fibroblasts from Fabry patients
Anna Reinelt
University Medical Center Hamburg-Eppendorf
Hamburg, Germany
Advancing cardiac disease modeling in Fabry cardiomyopathy by utilizing patient-derived induced pluripotent stem cells, heart organoids, and engineered heart tissue

*2025 Young Investigator Award Recipient
Malte Lenders
University Hospital Muenster
Muenster, Germany
Biochemical amenability in Fabry disease patients under chaperone therapy – how and when to test
Moderated Q&ASmerkous, Hoter, Reinelt, Lenders
15:30Poster SessionExhibit Hall (Seaport Ballroom)
15:45Industry Expert TheaterPalm Foyer
17:45Satellite Symposia

After the presentation of the 2025 Young Investigator Awards and the Patient Advocate Leader (PAL) awards, the entirety of the research presentations on Wednesday are dedicated to the Translational Research category. In 2025, many of the presentations were dedicated to research topics in gene therapy, including innovations occurring in genetic therapeutic approaches in translation from laboratory to the clinic. Download the WORLDSymposium 2025 program (PDF 200KB).

Translational Research

Co-Chairs: Tierra Bobo, PJ Brooks, Francyne Kubaski

06:45Satellite Symposia
08:00Chester B. Whitley
University of Minnesota
Minneapolis, MN, United States
Welcome and Announcements
Presentation of 2025 Patient Advocate Leader (PAL) Award to Maria Kefalas, Dean Suhr and Teryn Suhr and 2025 Young Investigator Awards Presentation
08:30Edina Poletto
Stanford University
Stanford, CA, United States
Investigational new drug-enabling studies for genome-edited hematopoietic stem cells to treat mucopolysaccharidosis type I
Roselena S. Schuh
Federal University of Rio Grande do Sul
Porto Alegre, Brazil
Evaluation of off-target events after an intravenous injection of liposomal CRISPR/Cas9 complex in vivo

*2025 Young Investigator Award Recipient
Troy Lund
University of Minnesota
Minneapolis, MN, United States
Changes in CSF GAG after intravenous enzyme replacement therapy
Kim M. Hemsley
Flinders University
Bedford Park, Australia
Short-term daily treatment of MPS IIIA mice with rosmarinic acid is neuroprotective.
Moderated Q&APoletto, Schuh, Lund, Hemsley
09:30Brian Bigger
University of Edinburgh
Edinburgh, United Kingdom
Long-term HSC gene therapy in mucopolysaccharidosis type IIIB mice corrects disease with no evidence of insertional mutagenesis despite high vector copy numbers
Betul Celik
University of Delaware
Newark, DE, United States
In vivo direct bone targeting lentiviral gene therapy for MPS IVA murine model
Sampurna Saikia
University of Delaware
Newark, DE, United States
Immune modulation for AAV-9 gene therapy by oral administration of peptides for GALNS enables the vector re-administration in MPS IVA
Karthikeyan Rajagopal
University of Pennsylvania
Philadelphia, PA, United States
In vitro development and in vivo evaluation of intra-articular GUSB mRNA therapy for mucopolysaccharidosis type VII
Moderated Q&ABigger, Celik, Saikia, Rajagopal
10:30Break and Exhibits
11:00Alberto B. Burlina
University Hospital of Padua
Padua, Italy
Neonatal screening for Fabry disease and long-term follow-up: The role of plasma globotriaosylsphingosine (LysoGb3) assay
Paige Nowlin
Brigham and Women’s Hospital
Boston, MA, United States
Enabling CNS delivery of rhGAA in GAA -/- mice using focused ultrasound
Robert J. Hopkin
Cincinnati Children’s Hospital Medical Center
Cincinnati, OH, United States
Miglustat: A first-in-class enzyme stabilizer for late-onset Pompe disease
Aimee Donald
University of Manchester
Manchester, United Kingdom
Two hundred and fifty cases of “Gaucher disease type 2”: A novel system of clinical categorization and evidence of genotype:phenotype correlation

*2025 Young Investigator Award Recipient
Moderated Q&ABurlina, Nowlin, Hopkin, Donald
12:00Break, Exhibits and Satellite Symposia
13:30Patrick B. Deegan
Addenbrooke’s Hospital
Cambridge, United Kingdom
Algorithmic case finding approaches for Gaucher disease type 1 in primary care records
Pasqualina Colella
Stanford University
Palo Alto, CA, United States
Genome-edited autologous stem cell transplantation with enhanced brain conditioning to correct progranulin deficiency
Akhil Kulkarni
National Human Genome Research Institute, National Institutes of Health
Bethesda, MD, United States
A novel AAV-based gene therapy strategy reverses lethality in a murine model of neuronopathic Gaucher disease
Krystyna Noelle Rytel
National Human Genome Research Institute, National Institutes of Health
Bethesda, MD, United States
A genome-wide CRISPR activation screen to identify beta-glucocerebrosidase modifiers

*2025 Young Investigator Award Recipient
Moderated Q&ADeegan, Colella, Kulkarni, Rytel
14:30Keerthana Iyer
University of Pennsylvania
Philadelphia, PA, United States
Porous microcarriers for sustained delivery of mRNA-lipid nanoparticles to treat joint disease in the mucopolysaccharidoses
Michael J. Przybilla
University of Minnesota
Minneapolis, MN, United States
Improving blood-brain barrier penetration in Hurler syndrome using an IDUA-ApoE fusion enzyme delivered via the PS Gene Editing System
Megan Joy Clarke
Albert Einstein College of Medicine/Children’s Hospital at Montefiore
Bronx, NY, United States
Screenplus: An assay-based multi-tiered testing model for expanded NBS
Dau-Ming Niu
Taipei Veterans General Hospital
Taipei, Taiwan
Applications of a rapid real time analysis system for whole genome/exome sequencing in newborn screening
Moderated Q&AIyer, Przybilla, Clarke, Niu
15:30Poster SessionExhibit Hall (Seaport Ballroom)
15:45Industry Expert TheaterPalm Foyer
17:45Satellite Symposia

Thursday began with a keynote address from Dr. Peter Marks: Advancing the Frontier of Gene Therapy.Following Dr. Marks’ address, the presentations shift to Clinical Applications, including abstracts on Clinical Trials for Registration. Abstracts presented in this category had a US FDA Investigational New Drug (IND) application for a phase I-III clinical trial or hold an EMA Investigational Medicinal Product Dossier (IMPD) or equivalent. Clinical Outcomes abstracts were also presented. Download the WORLDSymposium 2025 program (PDF 200KB).

Clinical Applications

Co-Chairs: Uma Ramaswami, Filippo Vairo, Ray Wang

06:45Satellite Symposia
08:00Chester B. Whitley
University of Minnesota
Minneapolis, MN, United States
Welcome and Keynote Speaker Introduction
 Peter Marks
Center for Biologics Evaluation and Research US Food & Drug Administration (FDA)
Silver Spring, MD, United States
Keynote Address: 
Advancing the Frontier of Gene Therapy
08:30Connor J. Lewis
National Human Genome Research Institute, National Institutes of Health
Bethesda, MD, United States
Volumetric magnetic resonance imaging and diffusion tensor imaging metrics correlate with clinical outcomes following gene therapy in GM1 gangliosidosis patients

*2025 Young Investigator Award Recipient
Joseph Muenzer
University of North Carolina Chapel Hill
Chapel Hill, NC, United States
Interim analysis of the efficacy and safety of weekly intravenous tividenofusp alfa in mucopolysaccharidosis type II (MPS II): A phase 1/2 study
Paul Harmatz
UCSF Benioff Children’s Hospital
Oakland, CA, United States
Campsiite® phase I/II/III: an interim clinical study update of RGX-121, an investigational gene therapy for the treatment of neuronopathic mucopolysaccharidosis type II (MPS II)
Mark Thomas
Royal Perth Hospital
Perth, Australia
Phase 1/2 clinical trial evaluating 4D-310 in adults with Fabry disease cardiomyopathy: Interim analysis of cardiac and safety outcomes in patients with 21-42 months of follow up
Moderated Q&ALewis, Muenzer, Harmatz, Thomas
09:30Derralynn Hughes
Royal Free London NHS Foundation Trust
London, United Kingdom
Isaralgagene civaparvovec (ST-920) gene therapy in adults with Fabry disease: Updated results from an ongoing phase 1/2 study (STAAR)
Alessandro Burlina
St. Bassiano Hospital
Bassano del Grappa, Italy
Reduced incidence of stroke in patients with Fabry disease treated with agalsidase beta: A matched analysis from the Fabry Registry
Christiane Auray-Blais
Université de Sherbrooke
Sherbrooke, QC, Canada
Fabry disease biomarker evaluation during a five-year gene therapy clinical trial
Aneal Khan
M.A.G.I.C. Clinic Ltd
Calgary, AB, Canada
Lentiviral gene therapy for Fabry disease – 5 year end of study analysis for the FACTS trial
Moderated Q&AHughes, Burlina, Auray-Blais, Khan
10:30Break and Exhibits
11:00Maria Ester Bernardo
San Raffaele Telethon Institute for Gene Therapy
Milan, Italy
Hematopoietic stem cell gene therapy for mucopolysaccharidosis type I-Hurler syndrome (OTL-203): Interim skeletal, neurological and systemic outcomes from a phase I/II study
Francesca Fumagalli
IRCCS San Raffaele Scientific Institute
Milan, Italy
Atidarsagene autotemcel (autologous hematopoietic stem cell gene therapy) preserves cognition, language, and speech and slows brain demyelination and atrophy in early-onset metachromatic leukodystrophy
Tahseen Mozaffar
University of California Irvine
Irvine, CA, United States
AT845 gene replacement therapy for late-onset Pompe disease: An update on safety and preliminary efficacy data from FORTIS, a phase 1/2 open-label clinical study
Reena Sharma
Salford Royal Hospital
Salford, United Kingdom
Results from GALILEO1, a first in human clinical trial of FLT201 AAV-gene therapy in adult patients with Gaucher disease type 1
Moderated Q&ABernardo, Fumagalli, Mozaffar, Sharma
12:00Break, Exhibits and Satellite Symposia
13:30Roberto Giugliani
Federal University of Rio Grande do Sul
Porto Alegre, RS, Brazil
Rainbow study: Phase 2 study of nizubaglustat as an investigational treatment for Niemann-Pick disease type C and GM2 gangliosidosis
Tatiana Bremova-Ertl
University of Bern
Bern, Switzerland
Long-term findings of N-acetyl-L-leucine for Niemann-Pick disease type C
Orna Staretz Chacham
Soroka Medical Center
Be’er Sheva, Israel
Trappsol® Cyclo™: open label treatment in the transportnpc™ sub-study in patients under the age of 3 diagnosed with Niemann-Pick disease type c1
Benedikt Schoser
Ludwig-Maximilians-University
Munich, Germany
Clinically important improvements in 6-minute walk distance (6MWD) and forced vital capacity (FVC) in adults with late-onset Pompe disease (LOPD) switching from alglucosidase alfa (alg) to cipaglucosidase alfa plus miglustat (cipa+mig) in the PROPEL study
Moderated Q&AGiugliani, Bremova-Ertl, Staretz Chacham, Schoser
14:30Maurizio Scarpa
University Hospital of Udine
Udine, Italy
Children with chronic acid sphingomyelinase deficiency treated with olipudase alfa for 4+ years show improvements or normalization in multiple disease manifestations: Final results of the ASCEND-Peds trial
Melissa Wasserstein
The University Hospital for Albert Einstein College of Medicine
Bronx, NY, United States
Final results of the ASCEND trial: Continued or sustained improvements in hepatosplenomegaly, respiratory outcomes, and lipid profile after 4 years of olipudase alfa enzyme replacement therapy in adults with acid sphingomyelinase deficiency
Pilar Giraldo
Hopital Quirónsalud Zaragoza and Spanish Foundation for Gaucher Disease and other Lysosomal Disorders (FEETEG)
Zaragoza, Spain
Efficacy of eliglustat administered with and without imiglucerase in pediatric participants with Gaucher disease type 1 or type 3: The ELIKIDS study
Pramod K. Mistry
Yale University School of Medicine
New Haven, CT, United States
Long-term outcomes of imiglucerase treatment in children with Gaucher disease type 1 or type 3 starting therapy before the age of 2 years
Moderated Q&AScarpa, Wasserstein, Giraldo, Mistry
15:30Poster SessionExhibit Hall (Seaport Ballroom)
15:45Industry Expert TheaterPalm Foyer
17:454th Annual Robert J. Gorlin SymposiumThe Situation Room: Gene Therapy in the Real World 

The fourth research day of the meeting began with the New Treatment Awards. Then, for the sixth year, the Contemporary Forum allowed presentation of scientific abstracts — Basic, Translational, and Clinical — submitted by industry first-author researchers. Although the first three days of WORLDSymposium were accredited and approved for CE credit, Commercial Interests were not eligible for ACCME accreditation. The Contemporary Forum allows commercial interests to present their work to the WORLDSymposium audience, in this non-CE session, while being held to all the same standards as the ACCME accredited sessions and scored for merit and interest by the same Program Committee.

Toward bringing the most recent research to the platform of WORLDSymposium 2025, after the late-breaking abstract submissions close on December 2, 2024, selected late-breaking abstracts were identified by the Program Committee as being suitable for platform presentation. In order to provide access to the “hot-off-the-presses” content from these researchers, late-breaking abstracts were reviewed and scored, and the top-scoring abstracts were selected for presentation during the 2025 meeting. Download the WORLDSymposium 2025 program (PDF 200KB).

Contemporary Forum, Late-breaking Science and the Rapid Fire Competition

Co-Chairs: Elizabeth Braunlin, Roberto Giugliani, Cynthia Tifft

07:30Chester B. Whitley
University of Minnesota
Minneapolis, MN, United States
Welcome and New Treatment Awards
08:00Heather Ann Lau
Ultragenyx Pharmaceutical Inc
Novato, CA, United States
Treatment with UX111 gene therapy rapidly reduced heparan sulfate (HS) exposure in cerebrospinal fluid (CSF) and improved long-term cognitive function in children with mucopolysaccharidosis type IIIA (MPS IIIA)
Daniel Virga
Regeneron Pharmaceuticals
Tarrytown, NY, United States
Development of a durable gene therapy for targeting CNS and visceral pathologies in acid sphingomyelinase deficiency
Eugen Mengel
SphinCS
Hochheim, Germany
Efficacy results from a 12-month double-blind randomised trial of arimoclomol for treatment of Niemann-Pick disease type C- presenting are scored 4-domain NPC clinical severity scale
Tyler Picariello
Dyne Therapeutics
Waltham, MA, United States
The FORCE platform delivers acid alpha-glucosidase to muscle as well as central nervous system and resolves pathology in Pompe disease mice
Moderated Q&ALau, Virga, Mengel, Picariello
09:00Frances M. Platt
University of Oxford
Oxford, United Kingdom
Insights into the mechanism of action of a acetyl-leucine as a therapeutic for lysosomal diseases
John A. Bernat
University of Iowa Health Care
Iowa City, IA, United States
Extending the interval between pegunigalsidase alfa infusions in patients with Fabry disease: Five-year interim results from the ongoing BRIGHT51 study
Paul J. Orchard
University of Minnesota
Minneapolis, MN, United States
Safety and initial activity of autologous human B cells genetically engineered to express human iduronidase using the Sleeping Beauty transposon system: Results from a first-in-human clinical trial in subjects with MPS I
Christina M. Ohnsman
Tern Therapeutics, LLC
Washington, DC, United States
Updated interim results from the first-in-human clinical trial of TTX-381, an investigational gene therapy for the treatment of ocular manifestations of CLN2 Batten disease
Moderated Q&APlatt, Bernat, Orchard, Ohnsman
10:00Break
10:30Yan Ouyang
Ruijin Hospital
Shanghai, China
Interim results from a phase 2 trial of the GCS inhibitor AL01211 in treatment naïve, classic male Fabry disease patients.
Carolina Fischinger Moura De Souza
Hospital De Clínicas De Porto Alegre
Porto Alegre, Brazil
Two year update from the first-in-human intracisternal dosing of TTX-181 investigational AAV9 gene therapy in a child with late infantile neuronal ceroid lipofuscinosis type 2 (CLN2)
Lara Y. Ruhberg
University Medical Center Hamburg-Eppendorf
Hamburg, Germany
Long-term and large scale analysis of NfL as biomarker in CLN2 patients treated with cerliponase alfa: Strengths and limitations
Alireza Ayoubi
University of Washington
Seattle, WA, United States
Imaging flow cytometry (IFC): A novel tool for automated and standardized quantification of urine podocytes and their globotriaosylceramide (GL3) content in Fabry disease
Moderated Q&AOuyang, Fischinger Moura De Souza, Ruhberg, Garrison
11:30Break

Rapid Fire Competition

New in 2025: The fast-paced and energetic Rapid Fire Competition. Format was a 5-minute, 5-slide presentation, followed by 5 minutes of live audience Q&A. Speakers were competing for prizes, and the audience voted for their favorites.

Co-Chairs: Rebecca Ahrens-Nicklas, Amy Gaviglio, Marc Patterson

12:30Melissa A. Calton
4D Molecular Therapeutics
Emeryville, CA, United States
Non-clinical evaluation of 4D-310 in combination with rituximab/sirolimus: A translational study to support adoption of a novel prophylactic immunomodulation regimen in clinical trials in adults with Fabry disease
Shiny Nair
Yale University School of Medicine
New Haven, CT, United States
Molecular cell atlas of the brain in neuronopathic Gaucher disease
Tippi C. MacKenzie
University of California San Francisco
San Francisco, CA, United States
Interim results from a first in human phase 1 clinical trial of in utero enzyme replacement therapy for lysosomal disorders
Dawn A. Laney
Emory University School of Medicine
Atlanta, GA, United States
Development and validation of an automated predictive scoring system to identify patients at increased risk for Fabry disease using Japanese electronic cardiac failure data
Emily Eshraghian
University of Minnesota
Minneapolis, MN, United States
Long term enzyme replacement therapy after hematopoietic stem cell transplant results in immune tolerance and improved biochemical outcomes
Slawomir Wantuch
Orchard Therapeutics
London, United Kingdom
Correction of glycogen accumulation in muscle, heart and CNS in a pre-clinical model of hematopoietic stem cell gene therapy for Pompe disease
Jennifer Goldstein
University of North Carolina at Chapel Hill
Chapel Hill, NC, United States
Pseudodeficiency: A poorly defined and misunderstood term in an era of precision medicine
Miles Clark Greenberg
University of Minnesota
Minneapolis, MN, United States
Heparan sulfate reduction in cerebrospinal fluid is associated with long-term cognitive outcomes in Hurler syndrome
Merve Emecen Sanli
UT Southwestern
Dallas, TX, United States
Gene replacement therapy for MPS IIIC with AAV9/HGSNAT vector
Karen Bean
Orchard Therapeutics
London, United Kingdom
Treatment effect of atidarsagene autotemcel (arsa-cel) in age-matched treated vs. untreated sibling pairs with early-onset metachromatic leukodystrophy (MLD)
Volha Skrahina
Rare Disease Consulting RCV GmbH
Berlin, Germany
Genetic stratification for Parkinson disease subjects for future personalized trails and therapies – Sidransky syndrome a new entity
Michael H. Gelb
University of Washington
Seattle, WA, United States
Massively parallel biochemical annotation of VOUS for lysosomal disorders
14:30Rapid Fire AbstractsVoting and Awards
14:40WORLDSymposium 2025 Adjourns

The Patient Voice 2025

Inequities in Access to Diagnosis, Care and Clinical Trials in Lysosomal Diseases

Monday, February 3, 2025
15:00 – 16:00 PST

Overview
The Patient Voice 2025 was an 1-hour CE-session, held on Monday, Feb. 3, 2025 from 15:00 – 16:00 PST. This session is intended to discuss population inclusion and access to care and clinical trials regardless of diversity and socioeconomics, with a focus on improving patient care globally. The speakers included strived to recognize individual perspectives and struggles for families despite backgrounds, socioeconomic, and racial barriers, and identify realistic ways to improve opportunities for all patients.

Course Director
Jeanine R. Jarnes, PharmD, MSc, BCOP, BCPS
Assistant Professor, Department of Pediatrics
University of Minnesota Medical School
Pharmacotherapy for Inherited Metabolic Diseases
Advanced Therapies Department
College of Pharmacy, Experimental and Clinical Pharmacology
University of Minnesota
Minneapolis, MN, USA

Chair
Terri L. Klein
President and CEO
National MPS Society
Durham, North Carolina, USA

Faculty
Cyndi Frank 
Co-President, Co-Founder
Gaucher Community Alliance
Sonoma, California, USA

Jenifer Waldrop
Executive Director
Rare Disease Diversity Coalition (RDDC)
Denver, Colorado, USA

Agenda
15:00   Welcome & Introduction (Terri Klein, Chair)
15:05   A Patient’s Perspective  (Cyndi Frank)
15:20   The Inequities in the Rare Disease Community (Jenifer Waldrop)
15:35   From Awareness to Action: Equity in Rare Disease Outcomes (Terri Klein)
15:50   Panel Discussion and Audience Q&A
16:00   Adjourn

2025 Mentor List

Registered attendees met with these remarkable Mentors on Monday, February 3, 2025.


Qais Abu Ali, MD, FACMG

Dr. Ali is an ABMGG certified medical geneticist and rare disease drug developer with 20+ years of experience at the NIH/pharma/biotech/clinical practice/molecular diagnostics.

Dr. Ali designed, led and advised on many rare disease clinical development programs that achieved global regulatory and commercial approvals including ones for lysosomal storage diseases.

Dr. Ali founded California’s qRare International (www.qrareintl.com) and is regularly invited to provide expert opinion on international families with rare and undiagnosed genetic diseases.


Heather R. Adams, PhD

Dr. Adams is a Professor in the Department of Neurology and member of the BDSRA Center of Excellence at URMC. She is a pediatric neuropsychologist and child psychologist whose research entails neurobehavioral phenotyping, quality of life, adaptive function, and natural history of NCL disorders and other neuronopathic pediatric rare diseases.

Rare disease activities include past Chair of PCORI Rare Disease Advisory Committee, and working with the ISPOR Performance Outcome Assessment Emerging Good Practices Task Force.


Rebecca Ahrens-Nicklas, MD, PhD

Dr. Ahrens-Nicklas is an Assistant Professor of Pediatrics and Human Genetics at The Children’s Hospital of Philadelphia and University of Pennsylvania. She leads the CHOP Gene Therapies for Inherited Metabolic Disorders Frontier Program. As a clinical geneticist, she cares for children with rare inherited inborn errors of metabolism. Her translational research laboratory focuses on developing novel molecular therapies for patients with neurometabolic disorders.


Kristina An Haack, MD

Dr. An Haack has been a healthcare industry professional for over 10 years. She is currently the Head of Rare Neurometabolic Disease Clinical Development, part of Specialty Care in Sanofi. She is a pediatrician by training, and specializes in Inherited Metabolic Disorders with focus on neurometabolic orphan diseases. Dr. An Haack has over 25 years’ experience in Academia, Research, Drug Development and Project Direction, and is the Medical Leader of Sanofi’s Pediatric Medicines Network.


Christiane Auray-Blais, LLM, PhD

Dr. Auray-Blais is the Scientific Director of the Provincial Neonatal Urine Screening Program for hereditary metabolic disorders in Sherbrooke, Quebec. She holds a master’s degree in health law, a Ph.D. in radiobiology from the Université de Sherbrooke, and postdoctoral studies at Duke University Medical Center, NC. She is the Scientific Director for the Waters-CHUS Expertise Centre in Clinical Mass Spectrometry; and is the principal investigator on various LSD studies: Fabry disease, Gaucher disease, mucopolysaccharidoses, etc.


Manny Bamgbade, PharmD, MBA

Dr. Bamgbade is the Director of Global Marketing at Amicus, leading the strategic development of marketing campaigns, messaging, and external engagement. He has expertise in marketing specialty products that address complex, unmet medical needs.
He is driven by a passion for translating intricate scientific data into impactful communications, making them more accessible and understandable to diverse audiences.
Manny’s dedication to innovation and improving patient outcomes continues to fuel his commitment to the rare disease community.


Brian Bigger, PhD

Dr. Bigger is head of the Bigger lab, which develops lentiviral ex vivo and AAV gene therapies for childhood dementias with two clinical trials underway in Manchester, and was the first to show the role of the inflammasome in neurodegeneration in lysosomal diseases. Dr. Bigger was a co-founder of Orchard Therapeutics and past Chairman of the European Study Group for Lysosomal Diseases.


Elizabeth Braunlin, MD, PhD

Dr. Braunlin is a pediatric cardiologist with special focus on MPS and other lysosomal storage diseases. Since 1983 she has evaluated >200 individuals with MPS who have undergone BMT or ERT. Dr. Braunlin also follows patients with Fabry and Pompe diseases. She is a basic scientist with interest in the cardiac features of MPS mice, their underlying pathophysiology and the effects of novel therapies to improve current outcomes of treatment.


Danielle Dong, ScM, CGC

Danielle is the Global Medical Scientific Advocacy Lead, Rare Disease at Sanofi. She focuses on multi-stakeholder engagement and advocates for sustainable solutions in the generation and interpretation of rare disease evidence. She is the co-chair of the Patient Centered Outcomes Research Institute (PCORI) Rare Disease Advisory Panel. She previously worked in both US and global operations of the LSD Registries at Genzyme and Sanofi. Danielle is a certified genetic counselor with clinical and research experience.


Maria Fuller, PhD

Professor Maria Fuller is a Clinical Scientist specialising in biochemical genetics and leads the National Referral Laboratory within the state-wide public pathology service in South Australia. The laboratory provides a national diagnostic service for lysosomal disorders and has a long-standing interest in improving the efficiency and accuracy of diagnosis. Maria has a conjoint academic appointment with the University of Adelaide and enjoys supervising post-graduate students.


Roberto Giugliani, MD, PhD

Dr. Giugliani is a Professor of Genetics at the Federal University of Rio Grande do Sul, Brazil. He is a medical geneticist who founded the Medical Genetics Service of Hospital de Clinicas of Porto Alegre. He co-founded and currently leads Casa dos Raros, and is Head of Rare Diseases at Dasa Genomics. He is also the Editor-in-Chief of the Journal of Inborn Errors of Metabolism and Screening, and Member of the Brazilian Academy of Sciences.


Ozlem Goker Alpan, MD

Dr. Ozlem Goker-Alpan is the founder and president of LDRTC, a non-profit organization focusing on Lysosomal Disorders and other rare diseases. She is dedicated to providing individualized care and treatment for patient. She also serves on the scientific advisory boards of multiple pharmaceutical companies and patient advocacy organizations.


Natalia Gomez-Ospina, MD, PhD

Dr. Gómez-Ospina, Assistant Professor at Stanford University and board-certified Medical Geneticist, focuses on using the hematopoietic system to deliver proteins to the brain, developing platforms to treat enzyme deficiencies. She has led preclinical studies on genome-edited cells for diseases like Mucopolysaccharidosis type I, Gaucher, and Krabbe disease. Dr. Gómez-Ospina has published in top journals and received prestigious awards, including the Genetics and Genomics Medicine Innovation Award from the American College of Medical Genetics and Genomics


Gregory A. Grabowski, MD

Dr. Grabowski is boarded in Pediatrics and Clinical Genetics, Clinical Biochemical Genetics, and Clinical Molecular Genetics. His has a continuing passion to discover and develop specific treatments for inherited diseases, particularly the LSDs. At MSSM and Cincinnati Children’s Hospital Research Foundation, he has trained over 50 faculty, several of whom are now department/division chairs and successful academicians. He is/has been a Consultant, CSO or Scientific Advisory Board member for several biotech companies.


Nadene D. Henderson, MS, LCGC

Nadene began working in LSDs in 1994, and has over 30 years working in rare diseases. Her career involves both clinical and research care for families impacted by these conditions. She was part of the FDA-approval for thirteen different therapies for LSDs (plus hypophosphatasia) and is a 2024 Sanofi TORCH awardee. Nadene’s current focus is study coordination including gene therapy, investigational products, registries, as well as in newborn screening and training future health care professionals.


Jeanine Jarnes, PharmD, MSc Pharmacogenomics

Dr. Jeanine Jarnes is an Assistant Professor at the University of Minnesota Department of Pediatrics, adjunct assistant professor in Department of Experimental and Clinical Pharmacology at the College of Pharmacy and Graduate Faculty at the University of Minnesota. She serves as primary mentor for doctoral students and post-doctoral fellowship training programs, a clinical researcher, pharmcogenomicist, and clinical care provider for patients with lysosomal diseases. Her research focus includes: gangliosidoses diseases, and therapies for lysosomal diseases.


Priya Kishnani, MD

Dr. Kishnani is the Chen Family Distinguished Professor of Pediatrics, Division of Medical Genetics chief, and professor in the Department of Molecular Genetics and Microbiology at Duke University.

She has conducted groundbreaking clinical and translational research in the fields of lysosomal storage diseases and glycogen storage diseases and has been instrumental in the development of alglucosidase alfa and has shown commitment to understanding the natural history and evaluation of therapies of several LSDs and GSDs.


Terri L. Klein, MPA

Terri Klein is President/CEO of the National MPS Society. She has worked in rare diseases for over 20 years. Her skills in fund development, advocacy, networking, and global perspectives have guided her organization in leading, navigating, and developing ground-breaking programs for rare disease. The MPS Society oversees a multi-million dollar budget for research, provides social work programming for patients diagnosed, in-person, and advocates at the Federal and State for rare disease legislation, including newborn screening.


Francyne Kubaski, PhD

Dr. Kubaski is a staff scientist in the Biochemical Genetics Laboratory at the Greenwood Genetic Center. She has a PhD in Genetics and Molecular Biology (Udel), and a Post-doc in Genetics and Molecular Biology (UFRGS). Dr. Kubaski has been involved with research for inborn errors of metabolism, and most specifically lysosomal disorders, for over 10 years to apply tandem mass spectrometry for diagnosis, treatment monitoring, and newborn screening for these diseases.


Malte Lenders, PhD

Dr. Lenders studied Biology at the University of Muenster, Germany focusing on genetics and biotechnology. He started as the laboratory head for Prof. Eva Brand at the University Hospital Muenster 10 years ago, and was jointly responsible for research projects resulting in >40 peer-reviewed publications dealing with Fabry disease. His main research interests are inflammation, genotype-phenotype associations and experimental medicine with a focus on lysosomal storage disorders.


Marc C. Patterson, MD

Dr. Patterson is a child neurologist with clinical and research experience in lysosomal disorders since his fellowship with Roscoe Brady at NIH. He has participated in multiple clinical studies, including those leading to the approval of miglustat for Niemann-Pick disease, type C by the EMA, and arimoclomol and N-acetyl-L- leucine by the FDA. He is Emeritus Professor of Neurology, Pediatrics, and Medical Genetics at Mayo Clinic. He will be Chief Medical Officer at IntraBio 1/1/2025.


Stefano Portolano, MD

Dr. Portolano earned his MD and specialty in Endocrinology at Federico II University in Naples. He held academic roles at UCSF, focusing on autoimmune thyroid diseases, before joining Genzyme in senior roles across Europe and the US. He led Celgene’s launch in Italy and then served as Regional Head for Europe at Ultragenyx. In 2021, he became CEO of Azafaros, a biotech developing treatments for rare lysosomal and metabolic diseases with neurological involvement.


Carlos Prada, MD

Dr. Prada is a physician scientist and division head for the genetics division at Lurie Children’s Hospital. His work focuses in lysosomal storage disorders, neurofibromatosis, and inborn
errors of metabolism. Dr. Prada is also the director for the new gene therapy program at Lurie Children’s. His research is in development of biomarkers and clinical trials for rare diseases.


Uma Ramaswami, MD

Dr. Ramaswami is a Consultant in Inherited Metabolic Disorders (IMDs), Clinical Lead at the Lysosomal Disorders Unit, Royal Free London Hospital and honorary Associate Professor, Genetics and Genomics Medicine, UCL. Her interests includes clinical research of the natural history and disease progression in IMDs. She has over 150 publications, National Institute of Clinical Excellence Topic Expert, Communicating Editor, Journal of Inherited Metabolic Disorders, personal tutor at UCL. England and European Touch Rugby referee and coach.


Biliana O. Veleva Rotse, PhD

Dr. Biliana Veleva-Rotse, PhD serves as the Global Medical and Medicines Lead for Fabry Disease at Amicus Therapeutics. Since 2016, she has been working in Medical Affairs, helping to drive development of therapies that positively impact patient lives. She also oversees the Fabry Program, working with a diverse cross-functional team to effectively fulfil global health authority commitments while driving evidence generation efforts to address the unmet needs of people living with Fabry disease.


Raphael Schiffmann, MD, MHSc

Dr. Schiffmann is an expert on neurometabolic diseases. He currently is a Professor in the Department of Internal Medicine, Texas Christian University.
Dr. Schiffmann has been performing pre-clinical and clinical research on lysosomal diseases since 1991 with a special focus on the natural history, pathogenesis and therapy of Fabry disease, Gaucher disease and the leukodystrophies. He has published 288 peer-reviewed research articles and over 15 book chapters.

Bibliography: https://scholar.google.com/citations?user=ZRmqVIgAAAAJ&hl=en


Benedikt Schoser, MD

Prof. Schoser is a trained neurologist, neurophysiologist, neurointensivist, palliative medicine doctor, and muscle pathologist. He holds positions as Associate Professor, Senior Consultant Neurologist at the Friedrich-Baur-Institute, Department of Neurology at the Ludwig Maximilians University in Munich, Germany. His research centers on molecular mechanisms of muscle loss in patients of all ages with the aim of translating basic mechanisms into clinical reality. He has authored more than 350 peer-reviewed publications, focused on myotonic dystrophies and glycogenosis.


Ellen Sidransky, MD

Dr. Ellen Sidransky, Branch Chief of the Medical Genetics Branch, is a pediatrician and geneticist in the NHGRI at NIH. She played a lead role in establishing the association between glucocerebrosidase and parkinsonism. Her work focuses on complexity in “simple” Mendelian disorders, lysosomal pathways in parkinsonism, and small molecule chaperone therapies for Gaucher and Parkinson diseases. She received the 2021 WORLDSymposium Roscoe O. Brady Award and the 2024 Breakthrough Prize in Life Sciences.


Bob R. Stevens

Bob Stevens is the Group CEO of a world-leading patient organization in “Rare,” with a clinical trial support and patient-focused research sub division. He is the Chair of LSD Global, and a Rare Disease Dad of two MPSII boys who have been on this journey for 25 years.

Part of Bob’s mission is to mentor the next generation of patient advocates and continue to work for a “Rare Life Lived Better”.


Danilo A. Tagle, PhD, MS

Danilo Tagle is currently Director, Office of Special Initiatives at NCATS, NIH where he leads efforts in developing innovative tools and technologies to greatly accelerate development of diagnostics and therapeutics. These programs involve public-private partnerships including partnerships with FDA, NASA and other agencies. Current programs are tissue chips , 3D bioprinting, automated chemistry using AI/ML, electronic nose technology for disease diagnosis, quantum technologies, and the isolation and analyses of exosomes for biomarker and therapy development.


Beth L. Thurberg, MD, PhD

Beth Thurberg, MD, PhD served as Vice President and Head of Global Discovery Pathology at Sanofi Genzyme for 20 years. Her laboratory provided pathology expertise and analysis of preclinical studies and human biopsies from Phase 1 – 4 clinical trials, with emphasis in translational medicine and rare diseases. She is a world-recognized expert in lysosomal disease pathophysiology and was responsible for clinical trial pathology leading the development and FDA approvals of multiple enzyme replacement therapies.


Cynthia J. Tifft, MD, PhD

Dr. Tifft is the Deputy Clinical Director and Senior Clinician at NHGRI, engaged in gene therapy for GM1 gangliosidosis and natural history of glycosphingolipid disorders. She was formerly the Division Chief at Children’s National Hospital where she diagnosed and cared for children and adults with a variety of LSDs.


Raymond Y. Wang, MD

Dr. Wang is a physician scientist who provides clinical care, serves as a principal investigator for clinical trials, and oversees a translational research laboratory for lysosomal storage disorders, specifically those with neurodegenerative symptoms.


Chester (Chet) B. Whitley, PhD, MD

Chet Whitley, Professor, Advanced Therapies, University of Minnesota. First US trials of marrow transplants for lysosomal diseases. Coined “ultra-orphan disease”. First gene therapy for MPS condition (Hunter syndrome). Invented DMB dye-binding test for GAG. First pseudo-deficiency for MPS I. Tested first gene-editing in humans (zinc-finger nucleases). Co-inventor of PS Gene-editing System. Organized 1st International Symposium on MPS and Related Diseases (1988). led NIH programs Gene Therapy for Metabolic Diseases and Lysosomal Disease Network. Founded WORLDSymposium.


Ari Zimran, MD

Dr. Zimran is the Founder/Director of the Gaucher Unit at Shaare Zedek Medical Center in Jerusalem, the world’s largest GD center, where he is a Senior Physician. He has authored over 360 publications, and is a leading PI in GD clinical trials. He was the first to report the link between GD and Parkinson’s disease. He is also the Founder and CMO of AGYANY Pharma, developing innovative therapies for GBA1-related Parkinson’s and neuronopathic GD.

Ryan Colburn Received the 2025 Catalyst Award

WORLDSymposium presented the second annual “Catalyst” award to Ryan Colburn, who was nominated in recognition of his efforts to instigate a shift in perspective for the prevalence of Pompe disease.

Colburn has some genetic variants, just like everyone else. In 2015 he learned that some of his variants are associated with a rare metabolic disorder, Pompe disease, and he has unapologetically altered course ever since. His professional background is in development, engineering and operations management: as applied to race cars, airplanes, rockets, satellites… and rare disease. Ryan is a driven student of process, (it is everywhere), and in this context, he is applying what he’s learned along the way to contribute to the health of the rare disease ecosystem.  He is passionate about empowerment and engagement, and shifting the view of patients as “subjects” to one of participants, collaborators, and partners who can help to find the most effective ways to accelerate progress on understanding and solving challenges in rare disease.

One example of Ryan’s focus on shifting the perspective comes from researching Pompe disease; he grew frustrated when he realized that the widely used frequency estimate for Pompe disease of 1 in 40,000 came from two very small studies that were more than 20 years old. The results were outdated and did not factor in all the information learned in the past 20 years. He also recognized that continued use of outdated epidemiology has consequences. In 2024, after a lengthy effort to recognize updated data and methods, Ryan published “An analysis of Pompe newborn screening data: a new prevalence at birth, insight and discussion” which used improved data and framework to study prevalence at birth for Pompe disease. The new prevalence study collected and analyzed the largest relevant dataset to date, including a novel way to judge the results as a projection for prevalence at birth of Pompe. The result is an upper bound for prevalence of 1 in 18,698 for Pompe disease, a significant difference from previous figures. He is now working on applying lessons learned in this study to improve the state of epidemiology for an expanded set of rare genetic conditions.

Ryan received the WORLDSymposium’s 2nd Annual Catalyst Award at the Be the Catalyst event on Monday, February 3, 2025.

WORLDSymposium 2025 Poster Sessions

In 2025, over 400 scientific abstracts were presented at three separate poster sessions. These sessions are an excellent opportunity to see, hear and discuss specific research topics directly with the abstract authors. Although the ePoster content will be available to registered attendees throughout WORLDSymposium 2025 via the Mobile App, the opportunity for live Q&A with the presenters is limited to their assigned live poster sessions.

Click here to download the 2025 Poster List.

All abstracts received by the October 1, 2024 deadline were considered for platform presentation and inclusion in the lysosomes issue of Molecular Genetics and Metabolism (MGM) which was published in February 2025. Poster acceptance notifications was emailed to the first author of the submitted abstract on or around November 4, 2024. Assigned poster numbers were available on the 2025 poster listing.

Due to publication deadlines, late-breaking abstracts are published in the program materials, and are not published in Molecular Genetics and Metabolism (MGM). Late-Breaking Poster acceptance notifications were emailed to the first author of the submitted abstract on or around December 16, 2024.

2025: Posters were presented in three (3) Sessions

The poster sessions provide an excellent opportunity to discuss concepts, share knowledge, and exchange ideas with abstract authors and other WORLDSymposium participants. Authors who accepted a poster presentation were assigned to present their abstract during one of three Live (in-person) sessions in the Exhibit Hall, based on the final abstract category for each abstract. Poster presenters were required to be in attendance at their poster for their assigned timeframe.

In addition to a printed poster for the live meeting presentation, all poster presenters are required to submit an electronic version of their poster, which will be available to attendees throughout WORLDSymposium 2025 in the Mobile App. Details on both the printed poster and ePoster requirements will be emailed to the first author within the acceptance email. An ePoster submission link will be sent to all first authors approximately one month prior to the start of WORLDSymposium 2025.

All registered attendees will have access to the posters and ePosters beginning at 05:00 PST, on Tuesday, February 4, 2025. The printed posters will be displayed on poster board kiosks in the Exhibit Hall during the assigned times listed below. In addition, ePosters will be available for viewing to all registered attendees throughout the live meeting on the WORLDSymposium Mobile App, and available to On Demand registered attendees, from February 12 – March 14, 2025.

All posters will be in the Exhibit Hall in the Seaport Ballroom. Daily poster receptions, including live Q&A with the presenters, will take place as outlined below.

  • Basic Science & Late-Breaking Science Posters (LB-01 to LB-34) were presented on Tuesday, February 4 from 15:30-17:30 PST
  • Translational Research & Late-Breaking Science Posters (LB-35 to LB-62) were presented on Wednesday, February 5 from 15:30-17:30 PST
  • Clinical Applications & Rapid-Fire Posters were presented on Thursday, February 6 from 15:30-17:30 PST

*** Contemporary Forum Posters were presented each day based on the abstract category. Late-Breaking Science Posters (poster numbers starting with an LB) were presented on Tuesday, February 4th and Wednesday, February 5th.

ePosters were available to all registered attendees via the WORLDSymposium mobile app beginning at 05:00 PST on Tuesday, February 4, 2025, and remained accessible throughout the live meeting. On Demand registered attendees can access ePosters from February 12 to March 14, 2025.

All Basic Science & Late Breaking Posters LB-01 to LB-31Poster Session ITuesday,
February 4
15:30-17:30
All Translational Research & Late-Breaking Posters LB-32 to LB-62Poster Session IIWednesday,
February 5
15:30-17:30
All Clinical Applications & Rapid Fire Posters Poster Session IIIThursday,
February 6
15:30-17:30


To access the poster requirements please go to Poster Presenter and Poster Guidelines

2025 Satellite Symposia Schedule

Tuesday, February 4, 2025, 06:45-07:45
Fighting Fire: Inflammation and Chronic Pain in Fabry Disease
Sponsored by Takeda Pharmaceuticals International AG
This satellite is open only to registered attendees from outside the United States. International participants only.
Click Here to Download Informational PDF

Tuesday, February 4, 2025, 06:45-07:45
Imaging Innovation: Harnessing Technology to Transform Patient Care
Sponsored by Sanofi
Click Here to Download Informational PDF

Tuesday, February 4, 2025, 12:15-13:15
Unraveling NPC and GMx: From disease insights to pivotal study designs
Sponsored by Azafaros B.V.
Click Here to Download Informational PDF

Tuesday, February 4, 2025, 12:15-13:15
Innovation in MLD Gene Therapy: Early Detection and Diagnosis, Clinical Experience, and Cost Effectiveness of Newborn Screening in MLD 
Sponsored by Orchard Therapeutics
Click Here to Download Informational PDF

Tuesday, February 4, 2025, 17:45-18:45
A case-based approach to navigating treatment switch in late-onset Pompe disease (LOPD)
Sponsored by Amicus Therapeutics
Click Here to Download Informational PDF

Tuesday, February 4, 2025, 17:45-18:45
Enzyme Replacement Therapy: Time to Act in Lysosomal Diseases
Sponsored by Chiesi Global Rare Diseases
Click Here to Download Informational PDF

Wednesday, February 5, 2025, 06:45-07:45
Lessons Learned from Advanced Therapies for Genetic Diseases: A Conversation
Sponsored by Astellas Gene Therapies, Inc
Click Here to Download Informational PDF

Wednesday, February 5, 2025, 06:45-07:45
Voices in unison: insights into the unmet needs in MPS II from patient community and physician perspectives
Sponsored by Denali Therapeutics
Click Here to Download Informational PDF

Wednesday, February 5, 2025, 12:15-13:15
Gaucher Disease: Challenges in Assessment and Management of Bone Disease
CE Satellite Symposium
Accredited provider: Postgraduate Institute for Medicine (PIM)
Jointly Provided by PIM and Saterdalen & Associates LLC
Supported by an independent educational grant from Takeda Pharmaceuticals U.S.A., Inc.
Click Here to Download Informational PDF

Wednesday, February 5, 2025, 12:15-13:15
Red light, green light…What about the yellow light? Exploring the Complexities of Treatment Tolerability in Fabry Disease
Sponsored by Chiesi Global Rare Diseases
Click Here to Download Informational PDF

Wednesday, February 5, 2025, 17:45-18:45
LOPD: Elevating Care Through Patient Insights
CE Satellite Symposium
Accredited provider: Amedco
Jointly Provided by Amedco and EPG Health
Supported by an independent educational grant from Amicus Therapeutics
Click Here to Download Informational PDF

Wednesday, February 5, 2025, 17:45-18:45
30 years of Rare Disease Registries and Beyond: Bridging Science and Patient Experience to Optimize Care
Sponsored by Sanofi
Click Here to Download Informational PDF

Thursday, February 6, 2025, 06:45-07:45
Transforming Clinical Outcomes with Early Treatment of Lysosomal Disorders
CE Satellite Symposium
Accredited provider: AffinityCE
Jointly Provided by: AffinityCE and Lysosomal & Rare Disorders Research & Treatment Center, Inc (LDRTC)

Thursday, February 6, 2025, 06:45-07:45
Novel Long-Term Real-World Data in Fabry Disease: Outcome Analysis in a New Therapeutic Environment
Sponsored by Sanofi
Click Here to Download Informational PDF

Thursday, February 6, 2025, 12:15-13:15
Advancing Collaboration in Patient Equity and Innovation in Fabry Disease Care
Sponsored by Amicus Therapeutics
Click Here to Download Informational PDF

Thursday, February 6, 2025, 12:15-13:15
The Great Debate: Lysosomal disease progression: When to treat?
Sponsored by Sanofi
Click Here to Download Informational PDF


James M. Wilson, MD, PhD received the 2025 Roscoe O. Brady Award

Dr. Wilson is President and CEO of GEMMABio. Having started his work in gene therapy nearly 40 years ago, Dr. Wilson was recruited to the University of Pennsylvania in 1993 and created the first and largest academic-based program in gene therapy. His laboratory focused on a family of viruses from primates called adeno-associated viruses (AAV) that could be engineered to be very effective gene transfer vehicles. These ‘vectors’ have become the technology platform of choice and have set the stage for the recent resurgence of the field of gene therapy.

Dr. Wilson has also been active in facilitating the commercial development of these new gene therapy platforms through the establishment of ten biotechnology companies.  His research has been focused on rare inherited diseases, ranging from cystic fibrosis to dyslipidemias to a variety of neurologic disorders and liver metabolic diseases, and on addressing these unmet needs for patients in marginalized populations.  To date, his team’s accomplishments include 3 FDA-approved AAV-based gene therapies, approximately 20 active programs currently in development, 95 patents on gene therapy-related technologies, and first-in-patient studies in 15 different diseases. He is Founder and Advisor for Scout Bio, Passage Bio, and iECURE, and Executive Chair at Franklin Biolabs.

Congratulations to Dr. Wilson from the entire WORLDSymposium audience! The 2025 Roscoe O. Brady Award was presented on Tuesday, February 4, at 08:00 PST, followed by a scientific presentation by Dr. Wilson: Lysosomal Diseases: A paradigm for personalized medicine.

2025 Industry Expert Theaters


Tuesday, February 4, 2025, 15:45 – 16:45
Optimizing Care Pathways: Building Successful Multidisciplinary Care Teams and Enhancing Virtual Access
Download the Invitation
Sponsored by Sanofi

Wednesday, February 5, 2025, 15:45 – 16:45
Uniting the Community Panel Discussion
Download the Invitation
Sponsored by Amicus Therapeutics

Thursday, February 6, 2025, 15:45 – 16:45
Interactive clinical cases: Transforming patient outcomes for neurodegenerative LSDs through early diagnosis
Download the Invitation
Sponsored by BioMarin Pharmaceutical


  • Located in the Palm Foyer outside the exhibit hall, the Industry Expert Theaters allowed exhibitors an opportunity to provide clinical updates and educate attendees on current therapies, disease states, products and pipeline activities
  • These promotional one-hour presentations are formatted for learning and a great way to provide a higher level of interaction and engagement of professional attendees.
  • Theaters are non-CE educational activities and provide an opportunity for product-specific education. 

These Industry Expert Theaters are not part of the official WORLDSymposium™ program, and WORLDSymposium does not approve or endorse any commercial products or services discussed during the Industry Expert Theaters or offered for sale by any corporate supporter of the Industry Expert Theaters. These presentations do not offer CE credits; these sessions are not approved for CE through WORLDSymposium.

Eligibility: Registration for WORLDSymposium 2025 and an official name badge are required to attend Industry Expert Theaters.

Maria Kefalas, Dean Suhr and Teryn Suhr received the 2025 Patient Advocate Leader (PAL) Award

After reviewing numerous nominations, and considering many amazing individuals, the WORLDSymposium 2025 Awards Committee selected Maria, Dean and Teryn as the recipients of the 2025 PAL Award.

Maria Kefalas studied economics at Wellesley College and earned her MA and PhD in sociology from the University of Chicago.  With her late husband Pat Carr, Dr. Kefalas is the co-founder of the Calliope Joy Foundation which provided funding to help launch the Leukodystrophy Center of Excellence at the world-renowned Children’s Hospital of Philadelphia. Over a decade, the Calliope Joy Foundation raised almost $1 million, which was used in part to send 20 children to Italy where they received gene therapy for metachromatic leukodystrophy (MLD). She worked with families from Brazil, Australia, and New Zealand to get children treated through the clinical trials, and she’s been on a mission to get the treatment approved. She is a nationally recognized parent advocate for gene therapy who has spoken at the NIH, NORD, and the FDA. 

As executive director of Cure MLD, she helped organize a listening session with the FDA in 2019 and later a Patient Focused Drug meeting with the agency. Although it was too late for her daughter Calliope (Cal), Dr. Kefalas championed the clinical trials and the therapy, and the FDA recently approved the first gene therapy to treat MLD.

Dean Suhr, BS, is the MLD Foundation President & co-Founder and Teryn Suhr, RN, is the MLD Foundation Executive Director and co-Founder. Their advocacy work over the past 20+ years has included involvement in over a dozen MLD research projects, including substrate reduction, gene, and enzyme replacement therapies. They facilitated the transfer of the MLD mouse model to the US to support numerous studies. Teryn and Dean continue to be actively engaged in efforts to implement MLD newborn screening both in the US and beyond. On Capitol Hill they are working to advance rare disease biochemical, public health, access and reimbursement, privacy, genomics, newborn screening, and other rare disease policies & regulations.

Dean and Teryn are parents to three girls, two of whom were diagnosed with MLD in 1995 after a six-year diagnostic odyssey. They lost their youngest daughter, Darcee, at ten years old due to complications after a BMT and are actively caring for their 44-year-old daughter, 30 years postdiagnosis, who continues to regress day by day.

Darcee’s death was the catalyst to plunge them into the work they have done for the last 2+ decades for Metachromatic Leukodystrophy. Upon realizing MLD was also a lysosomal disease and the biochemistry was more closely related to the LSDs, they turned to learning more about the LSDs and exploring possible connections in the Lysosomal space. The Suhrs have been attending, educating, and networking at the WORLDSymposium™for the last 20 years. Dean and Teryn have a long history of supporting and working with their LSD peers through the Symposium’s COPA and CPAG groups and collaborating with LSD groups like the MPS society and MSD community on projects.

The Suhrs are published authors on numerous scientific publications on topics such as Leukodystrophy Standards of Care, MLD NBS assay mechanism, MLD genotype-phenotype correlation & prediction, and have published numerous policy & editorial statements.

Teryn is a retired pediatric and newborn intensive care Registered Nurse. Dean is a retired hightech engineer, business development, marketing, sales, and operations executive applying decades of those skills to rare diseases. A more detailed bio is available at the MLD Foundation website.

In recognition of their tireless efforts, Dr. Kefalas and the Suhr’s received the Patient Advocate Leader Award on Wednesday, February 5, 2025, at 08:00 PST, at WORLDSymposium 2025.

2025 WORLDSymposium Young Investigator Awards

Congratulations to the ten individuals selected who received the 2025 WORLDSymposium Young Investigator Award. The award is a partial scholarship towards attendance at WORLDSymposium. 81 investigators-in-training submitted an application for the award, and the review process was difficult due to the excellent caliber of all the applications. WORLDSymposium would like to congratulate all of the applicants for their hard work. The following individuals received the WORLDSymposium Young Investigator Award at the 21st Annual Scientific Meeting on Wednesday, February 5, 2025 at 08:00 PST.

  • Pratikshya Adhikari, The University of North Carolina at Chapel Hill, Chapel Hill, United States
  • Aimee Donald, University of Manchester, Manchester, United Kingdom
  • Allan Feng, Stanford University, Stanford, United States
  • Angelica Maria Herreno Pachon, University of Delaware, Wilmington, United States
  • Andres Felipe Leal, Nemours Children’s Health, Wilmington, United States
  • Connor J. Lewis, National Human Genome Research Institute, National Institutes of Health, Bethesda, United States
  • Anna Reinelt, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
  • Krystyna Noelle Rytel, National Human Genome Research Institute, National Institutes of Health, Bethesda, United States
  • Roselena S. Schuh, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
  • Ewa A. Ziolkowska, Washington University School of Medicine, St. Louis, United States

4th Annual Robert J. Gorlin Symposium

The Situation Room: Gene Therapy in the Real World 

Thursday, February 6, 2025
17:45 – 19:00 PST

Overview:

Colleagues joined for an intensive 75-minute panel discussion addressing the hottest controversies in gene therapy. Expert panelists—trailblazers with global perspectives—focused on the contentious implications of the economic, regulatory, and ethical dimensions of single-administration (“one and done”) treatments. An engaging, dynamic exchange of often contrasting views included:

  • Clinical Trials: Examining the significant financial and ethical considerations involved in funding clinical trials
  • Regulation: Analyzing complex approval processes and potential reforms.
  • Reimbursement: Exploring innovative payment models for gene therapies.
  • Accessibility: Addressing ethical considerations and healthcare equity.

Format:

  • This high-energy session was presented as an expert panel discussion, similar to a news program expert discussion including targeted questions, discussion and open conversations. 
  • Prepared questions were directed to individual panelists, and include group discussion, followed by audience Q&A to address the numerous controversies and challenges for gene therapy not only today, but also looking ahead into the future.

Course Director:
Jeanine R. Jarnes, PharmD, MSc, BCOP, BCPS
Assistant Professor, Department of Pediatrics
University of Minnesota Medical School
Pharmacotherapy for Inherited Metabolic Diseases
Advanced Therapies Department
College of Pharmacy, Experimental and Clinical Pharmacology
University of Minnesota
Minneapolis, MN, USA

Chair:
Philip J. (P.J.) Brooks, PhD
Deputy Director, Division of Rare Diseases Research Innovation
NIH – NCATS
Bethesda, Maryland, USA

Faculty:
James M. Wilson, MD, PhD
University of Pennsylvania
GEMMABio and Franklin Biolabs
Philadelphia, Pennsylvania, USA

Simon Jones, MBChB
Consultant in Paediatric Inherited Metabolic Disease
Senior Lecturer, The University of Manchester
Manchester, UK

Francis Pang
Vice President of Global Market Access
Orchard Therapeutics
London, UK

Emil Kakkis, MD, PhD
Chief Executive Officer, President and Director
Ultragenyx
Novato, California, USA

David Rind, MD, MSc
Chief Medical Officer
Institute for Clinical and Economic Review (ICER)
Boston, Massachusetts, USA

The 2025 Robert J. Gorlin Symposium was funded by WORLDSymposium, with partial support received from

WORLDSymposium 2025 Keynote Speakers

Peter Marks, MD, PhD Returned as Keynote Speaker on Thursday, February 6, 2025

WORLDSymposium was excited to announce the return of Peter Marks, MD, PhD, to present a keynote address on Thursday, February 6, 2025. Dr. Marks has been a featured speaker at WORLDSymposium several times in the past 5 years, emphasizing the importance of collaborations between all stakeholders on a global basis including the US FDA, and providing important updates on the FDA’s role in rare disease research.

Dr. Marks is the director of the Center for Biologics Evaluation and Research (CBER) at the U.S. Food and Drug Administration (FDA). The center is responsible for assuring the safety and effectiveness of biological products, including vaccines, allergenic products, blood and blood products, and cellular, tissue, and gene therapies. Dr. Marks and center staff are committed to facilitating the development of biological products and providing oversight throughout the product life cycle.

Peter Marks received his graduate degree in cell and molecular biology and his medical degree at New York University and completed Internal Medicine residency and Hematology/Medical Oncology training at Brigham and Women’s Hospital in Boston. He has worked in academic settings teaching and caring for patients and in industry on drug development and is an author or co-author of over 125 publications. He joined the FDA in 2012 as Deputy Center Director for CBER and became Center Director in 2016, and is a Fellow of the American College of Physicians and a member of the National Academy of Medicine.

No one wanted to miss Dr. Marks Keynote Address: Advancing the Frontier of Gene TherapyThursday, February 6, 2025 at 07:30 PST, at the 21st Annual WORLDSymposium in San Diego, California.

Click here to view past Keynote Speakers.

WORLDSymposium 2025 New Treatment Award

WORLDSymposium strives to recognize important achievements in therapy for lysosomal diseases for treatments attaining regulatory approval. In recognition of achieving major milestones, WORLDSymposium reviews potential recipients for the New Treatment Award in 2025. This award honors “new treatments” that are viewed as providing value to patients with lysosomal diseases, and general acceptance as evidenced by approval by the U.S. Food and Drug Administration, European Medicines Agency, and other regulatory authorities.

The WORLDSymposium 2025 New Treatment Awards were presented to:

IntraBio for the FDA approval of AQNEURSA™ (levacetylleucine) for the treatment of neurological manifestations of Niemann-Pick disease type C (NPC) in adults and pediatric patients weighing ≥15 kg.
 

Orchard Therapeutics for receiving FDA Approval of LENMELDY™ (atidarsagene autotemcel) for the treatment of children with pre-symptomatic late infantile (PSLI), pre-symptomatic early juvenile (PSEJ), or early symptomatic early juvenile (ESEJ) (collectively referred to as early-onset metachromatic leukodystrophy (MLD)).
 

Zevra Therapeutics for receiving FDA approval of MIPLYFFA™ (arimoclomol) capsules for use in combination with miglustat for the treatment of neurological symptoms associated with Niemann-Pick disease type C (NPC) in adults and children 2 years of age and older.

Congratulations!

The WORLDSymposium 2025 New Treatment Awards were presented on Friday, February 7, 2025, at 07:30 PST, followed by Late-breaking Science, Contemporary Forum abstract presentations and the Rapid Fire Competition.

2025 DIAMOND EXHIBITORS

2025 PLATINUM EXHIBITORS

2025 GOLD EXHIBITORS

2025 EXHIBITORS

2025 PATIENT ADVOCATE SHOWCASE