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- Title
SMA CARNI-VAL TRIAL PART II: A Prospective, Single- Armed Trial of L-Carnitine and Valproic Acid in Ambulatory Children with Spinal Muscular Atrophy.
- Authors
Kissel, John T.; Scott, Charles B.; Reyna, Sandra P.; Crawford, Thomas O.; Simard, Louise R.; Krosschell, Kristin J.; Acsadi, Gyula; Elsheik, Bakri; Schroth, Mary K.; D'Anjou, Guy; LaSalle, Bernard; Prior, Thomas W.; Sorenson, Susan; Maczulski, Jo Anne; Bromberg, Mark B.; Chan, Gary M.; Swoboda, Kathryn J.
- Abstract
Background: Multiple lines of evidence have suggested that valproic acid (VPA) might benefit patients with spinal muscular atrophy (SMA). The SMA CARNIVAL TRIAL was a two part prospective trial to evaluate oral VPA and l-carnitine in SMA children. Part 1 targeted non-ambulatory children ages 2-8 in a 12 month cross over design. We report here Part 2, a twelve month prospective, open-label trial of VPA and L-carnitine in ambulatory SMA children. Methods: This study involved 33 genetically proven type 3 SMA subjects ages 3-17 years. Subjects underwent two baseline assessments over 4-6 weeks and then were placed on VPA and L-carnitine for 12 months. Assessments were performed at baseline, 3, 6 and 12 months. Primary outcomes included safety, adverse events and the change at 6 and 12 months in motor function assessed using the Modified Hammersmith Functional Motor Scale Extend (MHFMS-Extend), timed motor tests and fine motor modules. Secondary outcomes included changes in ulnar compound muscle action potential amplitudes (CMAP), handheld dynamometry, pulmonary function, and Pediatric Quality of Life Inventory scores. Methods: This study involved 33 genetically proven type 3 SMA subjects ages 3-17 years. Subjects underwent two baseline assessments over 4-6 weeks and then were placed on VPA and L-carnitine for 12 months. Assessments were performed at baseline, 3, 6 and 12 months. Primary outcomes included safety, adverse events and the change at 6 and 12 months in motor function assessed using the Modified Hammersmith Functional Motor Scale Extend (MHFMS-Extend), timed motor tests and fine motor modules. Secondary outcomes included changes in ulnar compound muscle action potential amplitudes (CMAP), handheld dynamometry, pulmonary function, and Pediatric Quality of Life Inventory scores. Conclusions: This study, coupled with the CARNIVAL Part 1 study, indicate that VPA is not effective in improving strength or function in SMA children. The outcomes used in this study are feasible and reliable, and can be employed in future trials in SMA. Trial Regsitration: Clinicaltrials.gov NCT00227266
- Subjects
LONGITUDINAL method; CARNITINE; VALPROIC acid; SPINAL muscular atrophy; HEALTH outcome assessment; PULMONARY function tests; PEDIATRICS
- Publication
PLoS ONE, 2011, Vol 6, Issue 7, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0021296