ArticleBioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy2026
Can Alpha-Glucosidase Activity in Plasma or Leukocytes Serve as a Biomarker for Future Gene Therapy in Classic Infantile Pompe Disease?
Article in BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
- Erratum issued
Authors and funding
11 authors.
Funding
Abstract
We studied alpha-glucosidase activity in plasma and leukocytes after an infusion of 40 mg/kg of recombinant alglucosidase alpha in patients with classic infantile Pompe disease to assess the pharmacokinetics and identify potential surrogate efficacy markers of gene therapy in patients on enzyme replacement therapy. Samples were collected by pharmacokinetic curves (n = 5) and random samples (n = 21 patients). Alpha-glucosidase activity was measured in plasma (substrate 4-methylumbelliferyl-α-D-glucopyranoside, MU) and leukocytes (substrate glycogen, Gn, and MU). Plasma peak concentration occurred at the end of the infusion, reaching concentrations > 5000 and > 100,000 times higher than the control and untreated patient levels, with a median half-life of 3.1 h (1.3-4.2 h). In leukocytes, plasma peak concentration occurred 24 h after the start of enzyme replacement therapy; plasma peak concentration did not exceed the control level (0.7 [Gn] and 0.9 [MU] times higher than controls). The estimated half-life was 2-4 days. Seven days after enzyme replacement therapy, median enzyme activity was 1.3 times higher than the control levels in plasma and within the control range in leukocytes; after 14 days, median values in plasma and leukocytes were below the control level. These findings suggest alpha-glucosidase activity in plasma and leukocytes may serve as an efficacy marker for gene therapy studies in patients with classic infantile Pompe disease receiving enzyme replacement therapy. Similar studies with next-generation enzyme replacement therapy are advised.
Indexed as
Identifiers
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.