Two newly identified mutations in the GAA gene, along with a previously known variant of unclear significance, were found to reduce the activity of the enzyme whose deficiency causes Pompe disease, a study has shown. The three variants appeared to produce unstable forms of the enzyme that were prone…
GAA enzyme
Scientists at Sanofi have developed a new type of enzyme replacement therapy (ERT) that can clear excess glycogen — the underlying cause of Pompe disease — from the cells in the brain and spinal cord, which are untouched by current ERTs. That’s according to a mouse…
Dyne Therapeutics has unveiled promising preclinical data for its enzyme replacement therapy (ERT) FORCE-GAA — part of the company’s propriety FORCE platform — designed to treat Pompe disease. The novel therapy has demonstrated the potential to deliver the treatment directly to skeletal and heart muscles, as well…
While the activity of the acid alpha-glucosidase (GAA) enzyme and glycogen buildup are hallmarks of Pompe disease, the lack of standardized assessments to quantify both parameters hampers evaluations of disease severity and treatment efficacy, according to a review study. All current methods, however, do confirm…
A powerful imaging technique called high-resolution intravital microscopy, or IVM, may be a useful tool for visualizing and quantifying the effectiveness of investigational treatments in mouse models of Pompe disease, according to recent research. The approach allows for cellular changes in muscles to be visualized in live animals. Using…
A gene therapy designed to travel into muscles resulted in widespread production of the enzyme that’s missing or faulty in Pompe disease, according to a study that also describes a new rat model of the infantile-onset form of the disease. Researchers also observed that rats given a single…
After more than a decade on Lumizyme (alglucosidase alfa), a teenager with late-onset Pompe disease (LOPD) developed an immune response against the therapy, which led to a worsening of disease symptoms. The patient was treated successfully with an immune-modulating therapy regimen that eliminated the aberrant immune response and…
Treatment with AT-GAA, Amicus Therapeutics’ experimental two-part therapy for Pompe disease, has now been shown to improve motor function, and to stabilize or improve lung function, for up to four years in adults. That’s according to new analyses from the ongoing Amicus-sponsored Phase 1/2 ATB200-02 trial…
Cardiac function normalized within a year of starting enzyme replacement therapy (ERT) for children with classic infantile-onset Pompe disease (IOPD)Â and remained stable over about 10 years, a study found. The findings were confirmed with standard and more advanced techniques to look at cardiac function. In light of the…
After two years being treated with AT-GAA (cipaglucosidase alfa/miglustat), adults with late-onset Pompe disease (LOPD) maintained their improvements in walking ability and had stabilized breathing function, as well as a reduction in the levels of disease biomarkers, according to…
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