late-onset Pompe disease

A report describes the unusual case of a man with late-onset Pompe disease (LOPD) that manifested with abnormalities in blood flow in the brain causing stroke-like symptoms. Abnormalities affecting blood vessels in the brain may be an under-recognized complication of LOPD, the researchers said. The study, “…

A small study in the U.K. is evaluating a noninvasive MRI-based tool that could potentially detect late-onset Pompe disease (LOPD) without the need for invasive muscle biopsies. This specialized muscle MRI also would monitor glycogen buildup — a hallmark of the condition — in muscles over time. The…

Age and the use of an assistive device like a walker may tell how well a patient with late-onset Pompe disease will do in a six-minute walk test (6MWT), a small study suggests. The 6MWT is considered a gold standard for determining, through difficulties in walking, the severity of…

The levels of BNIP3, a protein implicated in muscle fiber atrophy and increased autophagy — two features of late-onset Pompe disease (LOPD) — are increased in muscle samples from LOPD patients relative to healthy people, a small study shows. Autophagy is a pathway by which cells break down damaged…

Pain is relevant but appears to be unrelated to damage to small nerve fibers in the skin of late-onset Pompe disease patients who are using enzyme replacement therapy, a study found. The study, “Small fiber involvement is independent from clinical pain in late-onset Pompe disease,” was published in…

The investigational gene therapy ACT-101 overall was well-tolerated among three people with late-onset Pompe disease (LOPD) who were treated in a Phase 1/2 clinical trial. Moreover, the trial results also showed that treatment markedly increased levels of the GAA enzyme — deficient in Pompe disease — in the patients’ muscle…

Interruptions to Myozyme enzyme replacement therapy (ERT) regimens during the COVID-19 pandemic led to worsened motor symptoms and poorer respiratory function in patients with Pompe disease, a French study found. These decreases in motor and respiratory function — seen after just a couple of months — were not…

Infection by the virus that causes COVID-19 led to mild-to-moderate symptoms in four people with late-onset Pompe disease (LOPD) and pulmonary involvement, despite the increased risk of severe complications in such cases, scientists reported. “COVID-19 infection can result in a benign course in some patients with LOPD. However, individuals with LOPD…

Long-term treatment with Nexviazyme (avalglucosidase alfa) safely and effectively improves lung function and walking ability in children and adults with late-onset Pompe disease (LOPD), according to nearly two years of data from the Phase 3 COMET trial. These findings, along with positive long-term results from the Phase 2…

Acceptable safety is being seen to date in four adults with late-onset Pompe disease (LOPD) given the one-time gene therapy  AT845 in the FORTIS Phase 1/2 trial, its developer, Astellas Gene Therapies, announced. Interim study data in these four enrolled patients, as of the Dec. 3 cutoff date, shows…