Trial reportMolecular therapy : the journal of the American Society of Gene Therapy2021
A Phase 2/3 Trial of Pabinafusp Alfa, IDS Fused with Anti-Human Transferrin Receptor Antibody, Targeting Neurodegeneration in MPS-II.
Trial report in Molecular therapy : the journal of the American Society of Gene Therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 109 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
109 citing papers in PubMed, 1 synthesis or guideline pooled it, 161 citations in OpenAlex.
- The top 100 most cited articles on mucopolysaccharidoses: a bibliometric analysis.Frontiers in genetics · 2024Pooled it
- Infusion rate adjustment in enzyme replacement therapy with pabinafusp alfa for mucopolysaccharidosis II.British journal of clinical pharmacology · 2026Trial
- α-L-iduronidase fused with humanized anti-human transferrin receptor antibody (lepunafusp alfa) for mucopolysaccharidosis type I: A phase 1/2 trial.Molecular therapy : the journal of the American Society of Gene Therapy · 2024Trial
- Iduronate-2-sulfatase fused with anti-hTfR antibody, pabinafusp alfa, for MPS-II: A phase 2 trial in Brazil.Molecular therapy : the journal of the American Society of Gene Therapy · 2021Trial
- Article
- Antibody-Based Biologics for CNS Disorders.Antibodies (Basel, Switzerland) · 2026Review
- Biologic Therapies for Alleviating Neurodegeneration in Lysosomal Storage Diseases.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026Review
- Cellular and signalling mechanisms that regulate the blood-brain barrier.Nature reviews. Molecular cell biology · 2026Review
- Breaking Biological Barriers: Engineering Nanocarriers for Efficient Drug and Gene Delivery through Nano-Bio Interfaces and Biophysical Design.Applied physics reviews · 2026Article
- CA-IV-directed small-molecule shuttle enables targeted brain delivery of biologics.Nature chemical biology · 2026Article
- Mucopolysaccharidosis Type II Screening, Diagnosis, and Management: A Literature Review and Practical Recommendations for Newborn Screening Programs and Health Care Providers to Support Families and Improve Outcomes.International journal of neonatal screening · 2026Review
- Single-Chain Variable Fragment Fusion Proteins for Targeted Delivery and Therapy.Pharmaceuticals (Basel, Switzerland) · 2026Review
- CD98hc-targeted antibody shuttles for central nervous system delivery with broad cross-species reactivity.Nature biomedical engineering · 2026Article
- Combined Intracerebroventricular Enzyme Replacement and Cord Blood Transplantation in Patients with Mucopolysaccharidosis Type II Diagnosed Through Newborn Screening.International journal of neonatal screening · 2026Article
- Advances in Therapeutic Options for Pulmonary and Sleep Disorders in Mucopolysaccharidosis (MPS) Patients: A Narrative Review.Advances in respiratory medicine · 2026Review
- Ionizable Polymeric Micelles Targeting Transferrin Receptor 1 Enhance Systemic mRNA Delivery to the Brain.Molecular pharmaceutics · 2026Article
- Caregiver Reports of Neurodevelopmental Functions in Pediatric Lysosomal Storage Disorders: A Scoping Review.Journal of inherited metabolic disease · 2026Article
- Harmonizing Perspectives on MPS II Care in Türkiye: A Delphi Study Towards Treatment Management Consensus.Healthcare (Basel, Switzerland) · 2026Article
- CSF GAG non-reducing ends in MPS IH after peripheral and brain-penetrating therapies: A model comparing IV non-targeted ERT and HCT.Molecular therapy. Advances · 2026Article
- Impact of Neonatal Fc Receptor on Transferrin Receptor Antibody Fusion Protein Pharmacokinetics.Pharmaceutics · 2026Article
49 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pabinafusp alfa (JR-141) is a novel enzyme drug that crosses the blood-brain barrier by transcytosis via transferrin receptors. In order to establish its efficacy and safety, a multicenter, single-arm, open-label phase 2/3 clinical trial was conducted in 28 Japanese patients with mucopolysaccharidosis II (MPS-II, Hunter syndrome) by intravenous administrations of 2.0 mg/kg of pabinafusp alfa for 52 weeks. The primary efficacy endpoint was changes in heparan sulfate (HS) concentrations in the cerebrospinal fluid (CSF). Secondary endpoints included assessments of neurocognitive development for central efficacy, and changes in plasma HS and dermatan sulfate (DS) concentrations for peripheral efficacy. HS concentrations in the CSF significantly decreased from baseline to week 52 (p < 0.001), suggesting continuous inhibition of substrate accumulations in the CNS, i.e., hitherto unaddressed progressive neurodegeneration. Evaluations of neurocognitive developments showed positive changes in 21 of the 28 patients. Serum HS and DS concentrations, liver and spleen volumes, and other assessments suggested the peripheral efficacy of pabinafusp alfa was comparable to that of idursulfase. Drug-related adverse events were mild or moderate in severity, transient, and manageable. The results establish delivery across the BBB of pabinafusp alfa as an effective therapeutic for treating both the CNS and peripheral symptoms of patients with MPS-II.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.