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Randomized phase 2 trial and open-label extension of domagrozumab in Duchenne muscular dystrophy

Lookup NU author(s): Dr Michela GuglieriORCiD


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© 2020 Elsevier B.V.We report results from a phase 2, randomized, double-blind, 2-period trial (48 weeks each) of domagrozumab and its open-label extension in patients with Duchenne muscular dystrophy (DMD). Of 120 ambulatory boys (aged 6 to <16 years) with DMD, 80 were treated with multiple ascending doses (5, 20, and 40 mg/kg) of domagrozumab and 40 treated with placebo. The primary endpoints were safety and mean change in 4-stair climb (4SC) time at week 49. Secondary endpoints included other functional tests, pharmacokinetics, and pharmacodynamics. Mean (SD) age was 8.4 (1.7) and 9.3 (2.3) years in domagrozumab- and placebo-treated patients, respectively. Difference in mean (95% CI) change from baseline in 4SC at week 49 for domagrozumab vs placebo was 0.27 (–7.4 to 7.9) seconds (p = 0.94). There were no significant between-group differences in any secondary clinical endpoints. Most patients had ≥1 adverse event in the first 48 weeks; most were mild and not treatment-related. Median serum concentrations of domagrozumab increased with administered dose within each dose level. Non-significant increases in muscle volume were observed in domagrozumab- vs placebo-treated patients. Domagrozumab was generally safe and well tolerated in patients with DMD. Efficacy measures did not support a significant treatment effect. identifiers: NCT02310763 and NCT02907619

Publication metadata

Author(s): Wagner KR, Abdel-Hamid HZ, Mah JK, Campbell C, Guglieri M, Muntoni F, Takeshima Y, McDonald CM, Kostera-Pruszczyk A, Karachunski P, Butterfield RJ, Mercuri E, Fiorillo C, Bertini ES, Tian C, Statland J, Sadosky AB, Purohit VS, Sherlock SP, Palmer JP, Binks M, Charnas L, Marraffino S, Wong BL

Publication type: Article

Publication status: Published

Journal: Neuromuscular Disorders

Year: 2020

Volume: 30

Issue: 6

Pages: 492-502

Print publication date: 01/06/2020

Online publication date: 18/05/2020

Acceptance date: 06/05/2020

ISSN (print): 0960-8966

ISSN (electronic): 1873-2364

Publisher: Elsevier Ltd


DOI: 10.1016/j.nmd.2020.05.002


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