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Monday

 

GLACIER: An open-label, randomized, multicenter study to assess the safety and tolerability of Copaxone (glatiramer acetate) 40 mg/ml three-times weekly versus 20 mg/ml daily in patients with relapsing-remitting multiple sclerosis: STUDY





Image source: PHARMAFILE

Abstract


Background:
The efficacy and safety of glatiramer acetate (GA) 20 mg/mL once-daily subcutaneous injections (GA20) in relapsing-remitting multiple sclerosis (RRMS) is well-established. However, injection-related adverse events (IRAEs) may impede treatment adherence and tolerability. GA 40 mg/mL three-times weekly (GA40) also has a favorable efficacy and safety profile.

Objective:
To evaluate the safety, tolerability, and patient experience when converting from GA20 to GA40.

Methods/trial design:
GLACIER was an open-label, randomized, parallel-group trial conducted at 31 sites in the US between June 2013 and December 2013. Stable RRMS patients on GA20 were randomized in a 1:1 ratio to continue with GA20 or convert to GA40. The adjusted mean annualized rate of IRAEs was the primary endpoint for this study. Additionally, the severity of IRAEs, rate of injection-site reactions (ISRs), and patient-reported MS impact and treatment satisfaction were compared for the two treatment groups over the 4-month core study.

Results:
A total of 209 patients were randomized to convert to GA40 (n=108) or continue with GA20 (n=101). The adjusted mean annualized rate of IRAEs was reduced by 50% with GA40 (35.3 events per year; n=108) versus GA20 (70.4 events per year; n=101) (risk ratio (RR)=0.50; 95% confidence interval [CI]=0.34–0.74; p=0.0006). There was a 60% reduction in the rate of moderate/severe events (GA40 (n=108): 0.9 events per year versus GA20 (n=101): 2.2 events per year; RR=0.40; p=0.0021). Perception of treatment convenience improved for GA40-treated patients soon after converting and was sustained.

Conclusions
The GLACIER study demonstrates a favorable IRAE and convenience profile of GA40 for RRMS patients.

Story Source: The above story is based on materials provided by MULTIPLESCLEROSISANDRELATEDDISORDERS
Note: Materials may be edited for content and length

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