Case-Based Review

Treating Migraine in Teenagers


 

References

Medications

Over-the-Counter Agents

The first-line medications for migraine in the pediatric and adolescent populations are over-the counter medications, including ibuprofen, acetaminophen, and naproxen sodium. Ibuprofen has been well studied in pediatrics and was found to be safe and effective in 2 studies [10,11]at doses of 7.5–10 mg/kg. Again, care should be taken to ensure timely administration of ibuprofen at onset of headache, or aura if present, with appropriate weight-based dosing. Naproxen sodium has not been studied in pediatrics for treatment of migraine. However in practice, it is often used in similar doses of 10 mg/kg, with good efficacy. Although ibuprofen and naproxen sodium are both nonsteroidal anti-inflammatory medications (NSAIDs), anecdotally many patients report successful treatment with one NSAID when another has failed. Aspirin has shown efficacy in adults for treatment of acute migraine [12].It is likely effective in the pediatric population as well, but it is generally avoided due to long-standing concerns for precipitation of Reye syndrome in children. In adolescents over 16 years old, however, it is a reasonable option if there are no contraindications.

In one study, acetaminophen was compared to ibuprofen and placebo for treatment of migraine in children and adolescents and found to be effective more frequently than placebo but not as frequently as ibuprofen [10],likely due to its only minimal anti-inflammatory effects. It is a reasonable option for children and adolescents, particularly in those who have contraindications to NSAIDs.

While these over-the-counter medications are generally safe and well tolerated, clinicians should not overlook the potential for toxicity as well as medication overuse headache, and patients should be counseled to avoid use of any of these medications for more than 2 to 3 headache days per week.

Triptans

Studies of efficacy of triptans in treatment of pediatric migraine have been limited and results conflicting, largely due to high placebo response rates. However, some have shown efficacy over placebo, and in the past few years have received FDA approval for use in the pediatric and adolescent populations. Clinicians should remember that these medications are vasoconstrictors, so they should not be used in patients with vascular disease or in patients with migraine with brainstem aura or hemiplegic migraine. Additionally, due to the risk of serotonin syndrome, they should not be used in patients on monoamine oxidase inhibitors. It is also important to educate patients to limit use of these medications to 4 to 6 times per month to avoid precipitation of medication overuse headache.

Almotriptan was approved by the FDA in 2009 for use in patients 12 years and older, based on a large randomized controlled trial comparing doses of 6.25, 12.5, and 25 mg with placebo in patients ages 12 to 17 years old. All doses resulted in statistically significant pain relief as compared to placebo, and interestingly, the 12.5-mg dose seemed to be the most effective [13].

Rizatriptan received FDA approval in 2012 for use in patients 6 years and older. In 2 randomized controlled trials in patients 6 to 17 years old, rizatriptan (5 mg for patients < 40 kg, 10 mg for patients ≥ 40 kg) was more effective than placebo in providing pain freedom at 2 hours [14,15].One earlier trial found efficacy only on some measures (weekend treatment, decrease in nausea and functional disability) but no statistically significant difference than placebo in terms of overall efficacy in achieving pain freedom at 2 hours [16].However, this trial had a higher placebo response rate than typically seen in adult triptan trials. In a recent long-term open-label study in patients 12 to 17 years old, rizatriptan was found to be generally safe and well-tolerated with consistent efficacy of 46% to 51% pain freedom at 2 hours over time [17].

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