Zavegepant nasal spray for the acute treatment of migraine: A meta analysis
Abstract
Background: Zavegepant nasal spray is a novel CGRP receptor antagonist that has been developed for the acute treatment of migraine – a prevalent disease leading to disability and economic burden. The meta-analysis aims to quantify the efficacy of Zavegepant compared to standard care or placebo in achieving pain freedom, freedom from most bothersome symptoms (MBS), sustained pain freedom, and pain relapse at 2 to 48 hours. Methods: Databases and registers were systematically searched to identify relevant clinical trials. Two independent reviewers used a standardized data extraction form to collect relevant data on primary and secondary outcomes. Statistical analysis was performed in RevMan 5.4 software. The efficacy of Zavegepant was compared to placebo using odds ratios (OR) with 95% confidence intervals (CI). Heterogeneity was assessed using the I2 statistic, chi-square test, Z value, and P value. Cochrane ROB-2 and ROBINS-I tools were used to assess the biases (osf.io/b32ne). Results: Of 36 identified studies, 3 were included in this meta-analysis. Zavegepant was more effective in achieving pain freedom (OR: 1.6, P < .00001), and freedom from MBS at 2 hours (OR = 1.4, P < .00001). The intervention group demonstrated a higher likelihood of sustained pain freedom between 2 and 48 hours (OR = 1.74, P < .00001). Although there was a trend towards reduced pain relapse between 2 and 48 hours in the intervention group, the difference was insignificant (OR = 0.67, P = .11).…
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