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Lumiracoxib is effective in the treatment of episodic tension-type headache
Elias Packman1, Barry Packman, Helen Thurston
1Institute for Applied Pharmaceutical Research, Philadelphia, PA, USA.
Objective:
To evaluate the efficacy of single doses of lumiracoxib, the most selective cyclo-oxygenase (COX)-2 inhibitor, in the treatment of episodic tension-type headache (ETTH), with particular emphasis on time to onset of analgesia.
Background:
ETTH is the most frequently occurring type of headache with an annual prevalence rate of up to 40%. Some patients with ETTH do not respond to currently available therapies, thus an effective analgesic is needed that provides a rapid onset of analgesia alongside significant pain relief. Lumiracoxib is the most selective COX-2 inhibitor developed for the treatment of acute and chronic pain.
Methods:
In this single-center, randomized, double-blind, double-dummy, placebo-controlled, parallel-group study, patients with ETTH were randomly assigned to receive single-dose lumiracoxib (200 or 400 mg, n = 60 in each group) or placebo (n = 30) within 1 hour of an ETTH. Efficacy was assessed over a 3-hour period, the primary efficacy variable being the time to onset of analgesia. Other efficacy variables included summed pain intensity difference from 0 to 3 hours after dosing, time-specific pain intensity difference, time-specific pain relief, time-specific pain relief intensity difference, total pain relief over 0 to 3 hours, patient's global evaluation of treatment effect, the proportion of patients who achieved onset of analgesia by 1 hour and time to rescue medication intake. Safety was assessed by monitoring and recording of all adverse events (AEs).
Results:
The median time to onset of analgesia was significantly faster for lumiracoxib 200 mg (47 minutes; 95% confidence interval [CI]: 41, 52) and lumiracoxib 400 mg (41 minutes; 95% CI: 36, 48) than for placebo (>3 hours; both P < .001). Both doses of lumiracoxib were significantly superior to placebo for all secondary efficacy variables. There were no AEs recorded in any treatment group.
Conclusions:
Single 200 or 400 mg doses of lumiracoxib provided rapid and effective relief from the acute pain associated with ETTH.
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