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Neurology. 2009 Mar 3;72(9):806-12. doi: 10.1212/01.wnl.0000343880.13764.69.

GLANCE: results of a phase 2, randomized, double-blind, placebo-controlled study.

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  • 1Department of Neurology, University of Rochester Medical Center, Rochester, NY 14642, USA. andrew_goodman@urmc.rochester.edu

Abstract

OBJECTIVE:

To evaluate the safety and tolerability of natalizumab when added to glatiramer acetate (GA) in patients with relapsing multiple sclerosis. The primary outcome assessed whether this combination would increase the rate of development of new active lesions on cranial MRI scans vs GA alone.

METHODS:

This phase 2, randomized, double-blind, placebo-controlled study included patients aged 19 to 55 years who were treated with GA for at least 1 year before randomization and experienced at least one relapse during the previous year. Patients received IV natalizumab 300 mg (n = 55) or placebo (n = 55) once every 4 weeks plus GA 20 mg subcutaneously once daily for < or = 20 weeks.

RESULTS:

The mean rate of development of new active lesions was 0.03 with combination therapy vs 0.11 with GA alone (p = 0.031). Combination therapy resulted in lower mean numbers of new gadolinium-enhancing lesions (0.6 vs 2.3 for GA alone, p = 0.020) and new/newly enlarging T2-hyperintense lesions (0.5 vs 1.3, p = 0.029). The incidence of infection and infusion reactions was similar in both groups; no hypersensitivity reactions were observed. One serious adverse event occurred with combination therapy (elective hip surgery). With the exception of an increase in anti-natalizumab antibodies with combination therapy, laboratory data were consistent with previous clinical studies of natalizumab alone.

CONCLUSION:

The combination of natalizumab and glatiramer acetate seemed safe and well tolerated during 6 months of therapy.

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