Wednesday, April 22, 2026

Safety and efficacy of individualised exercise and NAD+ precursor supplementation in patients with Friedreich's ataxia in the USA: a single-centre, 2 × 2 factorial, randomised controlled trial

Lin K, Bucha A, McSweeney K et al. Safety and efficacy of individualised exercise and NAD+ precursor supplementation in patients with Friedreich's ataxia in the USA: a single-centre, 2 × 2 factorial, randomised controlled trial The Lancet Neurology, 25, 469-481. doi:10.1016/S1474-4422(26)00082-7 

 Friedreich's ataxia is a rare, chronic, progressive, neurodegenerative condition affecting multiple organ systems, including neurological, musculoskeletal, cardiac, and endocrine systems, and is marked by low cardiopulmonary fitness. We tested the effect of exercise and NAD+ precursor supplementation with nicotinamide riboside, which have each shown benefits in animal and early clinical studies, on cardiopulmonary fitness in individuals with Friedreich's ataxia.