Gene Replacement Tx Beneficial in Spinal Muscular Atrophy

Share this content:
Gene Replacement Tx Beneficial in Spinal Muscular Atrophy
Gene Replacement Tx Beneficial in Spinal Muscular Atrophy

THURSDAY, Nov. 2, 2017 (HealthDay News) -- Gene replacement therapy is beneficial in spinal muscular atrophy type 1 (SMA1), and nusinersen is beneficial for infants with spinal muscular atrophy, according to two studies published online Nov. 1 in the New England Journal of Medicine.

Jerry R. Mendell, M.D., from the Center for Gene Therapy at the Research Institute at Nationwide Children's Hospital in Columbus, Ohio, and colleagues examined functional replacement of the mutated gene encoding survival motor neuron 1 (SMN1) in SMA1. Fifteen patients with SMA1 received a single dose of intravenous adeno-associated virus serotype 9 carrying SMN complementary DNA encoding the missing protein (three received a low dose; 12 received a high dose). The researchers found that at 20 months of age, all 15 patients were alive and event-free compared with 8 percent survival in a historical cohort.

Richard S. Finkel, M.D., from Nemours Children's Hospital in Orlando, Florida, and colleagues conducted a randomized, double-blind, sham-controlled trial of nusinersen in 78 infants with spinal muscular atrophy. In a prespecified interim analysis, the first primary end point (motor-milestone response) was assessed. The researchers found that the percentage of infants with a motor-milestone response was significantly higher in the nusinersen versus the control group (41 versus 0 percent), prompting termination of the trial. The percentage with motor-milestone response at the final analysis was 51 versus 0 percent, respectively.

"Among infants with spinal muscular atrophy, those who received nusinersen were more likely to be alive and have improvements in motor function than those in the control group," Finkel and colleagues write.

Several authors from the Mendell study were employees of AveXis, which partially funded the study. The Finkel study was funded by Biogen and Ionis Pharmaceuticals.

Abstract/Full Text (subscription or payment may be required) -- Mendell
Abstract/Full Text (subscription or payment may be required) -- Finkel
Editorial (subscription or payment may be required)

Share this content:

is free, fast, and customized just for you!

Already a member?

Sign In Now »


Sign up for myCME e-newsletters


Drug Lookup

Browse drugs by: BrandGenericDisease

More in Home

CDC Issues Warning on Contaminated Raw Milk

CDC Issues Warning on Contaminated Raw Milk

Case of New Jersey woman becoming ill after drinking raw milk from Udder Milk company

Cerebral Morphometric Changes Discriminate ADHD, Controls

Cerebral Morphometric Changes Discriminate ADHD, Controls

Alterations discern ADHD-I, ADHD-C, with discriminating features located in DMN, insular cortex

Baby Boomers Have Increased Risk of Rx Opioid Overdose Death

Baby Boomers Have Increased Risk of Rx Opioid ...

In addition, those born from 1947 to 1964 and 1979 to 1992 have increased risk of heroin overdose death

is free, fast, and customized just for you!

Already a member?

Sign In Now »