Regulatory authorities in the U.S. and the U.K. are expected to decide in the third quarter of this year whether or not to approve AT-GAA as a treatment for late-onset Pompe disease, according to its developer, Amicus Therapeutics. The U.S. Food and Drug Administration (FDA) had previously…
GAA enzyme
Researchers in Taiwan have developed new molecules that can stabilize the acid alpha-glucosidase (GAA) enzyme, a strategy they say might improve the effectiveness of treatments for Pompe disease. Their study, “Harnessing polyhydroxylated pyrrolidines as a stabilizer of acid alpha-glucosidase (GAA) to enhance the efficacy of enzyme…
Scientists at the University at Buffalo (UB) in New York have received a five-year $3.8-million grant to develop methods to improve the accuracy of newborn screening for Pompe disease and two other rare genetic disorders. The project, “Enhancement of Newborn Screening Diagnostic Paradigms to Improve the Efficacy of…
The U.S. Food and Drug Administration (FDA) has delayed a decision on whether to approve cipaglucosidase alfa, the biologic component of AT-GAA — a treatment being developed by Amicus Therapeutics for late-onset Pompe disease. The agency was unable to inspect a manufacturing site of WuXi Biologics in China…
A number of enzymes involved in synthesizing glycogen – the molecule that accumulates to toxic levels in Pompe disease – are elevated in a mouse model of the disease and these metabolic changes may contribute to the disease’s progression, a study found. In fact, the buildup of these proteins…
Certain protein modifications may enhance the ability of a therapeutically-delivered acid alpha-glucosidase (GAA) enzyme to be secreted and taken up by neighboring cells in models of Pompe disease, a study suggested. Such approaches could offer ways to improve the effectiveness of gene therapies for Pompe, although more work is…
Administrating a stem cell gene therapy before beginning enzyme-replacement therapy (ERT) prevented the development of antibodies against the acid alpha-glucosidase (GAA) enzyme, improved survival, and enhanced therapeutic benefits in a mouse model of Pompe disease, a recent study found. “Together, this study indicates that [stem cell] gene therapy induces…
Gene therapy given with chaperones — specific molecules known to stabilize the structure of proteins — was found to enhance the availability of acid alpha-glucosidase, known as GAA, the missing or defective enzyme in Pompe disease (PD), in a mouse model. The treatment subsequently eased disease symptoms, with the…
The European Medicines Agency has accepted applications from Amicus Therapeutics seeking approval of AT-GAA, a two-component investigational therapy for the treatment of Pompe disease. “The acceptance of these filings is an important step forward for people living with Pompe disease and their families in Europe. Patients need new…
A new enzyme replacement therapy (ERT) targeting specific cell types boosts the delivery of acid alpha-glucosidase (GAA) — the enzyme missing or defective in Pompe disease patients — to muscle and heart cells, a study shows. Compared to standard ERT, the targeted approach by Regeneron Pharmaceuticals normalized the…
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