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Study finds DNA contamination persists in SMA newborn screening

DNA contamination from sample processing remains a major problem in spinal muscular atrophy (SMA) newborn screening, a study reported. Researchers proposed analytic cut-off values to clearly separate samples testing positive for SMA from negative samples. Data also showed that adding a freezing step before DNA extraction led to significantly…

Spinraza treatment improves motor function in nonambulatory SMA

Treatment with Spinraza (nusinersen) improved motor function in children, adolescents, and adults with spinal muscle atrophy (SMA) who were unable to walk without assistance, according to a four-year real-world analysis. Moreover, nine of the 12 patients who underwent continuous evaluations while on Spinraza over the four years achieved…