Commentary: Risk factors and treatment for pediatric migraine, December 2022

This month, we will take a look at three new studies investigating risk factors and treatments for headache in children.

Stress has long been noted to be one of the most consistent triggers for migraine attacks. Much has been written and studied regarding the effect of migraine on mood in adults; however, few studies have done the same in the pediatric and adolescent population. Childhood trauma has been associated with the development of chronic migraine as an adult, and behavioral treatments, such as cognitive-behavioral therapy and biofeedback, are considered as effective or more effective for migraine prevention in children compared with preventive medications. Falla and colleagues have quantified the risk for anxiety and depression in children and adolescents with migraine.

The "internalization of symptoms" is defined by the authors as an individual's tendency to react to stress with physical symptoms, including anxiety and depression. These are thought to be elevated in children and adolescents with many effects, including migraine. However, no correlation has yet been shown. Beyond the internalization of symptoms, specific psychiatric diagnoses may also be more prominent in this population.

This study was a meta-analysis of data pooled from studies that assessed migraine-related symptoms as they relate to disorders on the spectrum of anxiety, depression, and trauma-related disorders. Any studies with participants older than 18 years were excluded from this analysis. A total of 80 studies were included. Anxiety symptoms were seen to be significantly higher in children and adolescents with migraine compared to controls and the odds of having an anxiety disorder were higher among those with migraine compared with controls. Depressive symptoms were also significantly higher; however, this effect size was much smaller. The incidence of migraine was not different than that of other headache disorders.

Many patients describe stress as a trigger for migraine and other headache attacks. Mood disorders and childhood trauma are associated with the development of chronic migraine as an adult. This study reveals a two-way connection between mood disorders and headache diagnoses in children. Screening for the underlying symptoms of depression and anxiety should be done when evaluating children and adolescents for headache disorders, and there should be a focus on the treatment of these conditions in addition to treating the headache symptoms.

There are, unfortunately, very few acute pediatric migraine trials. Only a handful of medications have actually been investigated for the treatment of migraine in children younger than 12 years, and only one migraine-specific medication, rizatriptan, is approved in the United States for pediatric use. Because of this, many argue that children and adolescents with migraines end up overusing over-the-counter medication options, increasing the risk for medication overuse headache. In addition, many patients need nonoral acute migraine treatments due to nausea and vomiting or rapid onset migraine attacks.

Yonker and colleagues conducted a phase 3, randomized, double-blind, multicenter trial that only enrolled patients aged 6-11 years, all of whom had a diagnosis of episodic migraine (< 15 days of migraine per month). Children that weighed < 50 kg were given a randomly assigned lower dose of 1 mg or 2.5 mg zolmitriptan nasal spray, and those who weighed > 50 kg were randomly assigned to either 2.5 mg or 5 mg, which is the standard adult dose.

The primary outcome was a standard 2-hour pain freedom level; secondary outcomes included the proportion of improvement at 0.5, 1, and 24 hours post-dose, as well as sustained headache response for the following 2-24 hours and time to rescue medication use. Although 300 patients were enrolled and taken through the run-in process, 114 were discontinued either due to placebo response or because they had no treated migraine during the run-in phase. The mean age was 9.2 years and half of the patients were girls (of note, this is considered an appropriate proportion for pediatric migraine).

The primary endpoint of 2-hour pain freedom was not met; however, more patients in the high-dose treatment group were pain-free after 2 hours than in the placebo group. Several secondary endpoints did achieve statistical significance, including pain-free status at 1 hour post-dose, as well as headache response at 0.5, 1, and 2 hours — all of which were lower in the high-dose treatment group. The lower-dose treatment group was statistically similar to placebo for all the timepoints noted above. Treatment-related adverse events were rare in all groups.

This study did not meet its primary efficacy endpoint. However, it does show safety and effectiveness, enough at least to broaden the use of zolmitriptan for pediatric migraine. Many more effective medications for migraine treatment in adults should follow the lead of this group to find better and more specific treatments for children with migraine.

As we noted above, childhood trauma is associated with the development of chronic migraine in adulthood. Prior studies have defined childhood trauma as physical or emotional abuse primarily, and the correlation between childhood illnesses and headache disorder has not previously been determined. Davidsson and colleagues published a study in the Journal of Cancer Epidemiology that reviewed nationwide database registers longitudinally to better understand this potential risk factor.

The Danish Cancer Register was reviewed for the purpose of identifying anyone in the general Danish population who developed a diagnosis of cancer before age 20 years. The individual identification numbers in that register were linked to data in other nationwide registers for the purpose of determining whether those individuals initiated migraine-specific medications or were admitted for an inpatient hospitalization for migraine. Study participants were also grouped based on cancer type, specifically hematologic cancers involving chemotherapy and central nervous system-directed therapies, brain tumors needing intracranial surgery or radiation to the brain, blastomas or other solid tumors outside of the central nervous system, sarcomas treated with an alkylating chemotherapy, and all other carcinomas.

Among all individuals diagnosed with a childhood cancer, there was a significant increase in overall risk for the need to initiate antimigraine medication. Of interest, this was higher in those diagnosed in their teenage years. Migraine hospitalization was also noted to be higher in nearly all strata, with the exception of those diagnosed with cancer prior to the age of 5 years. The highest risk was also noted in individuals with hematologic cancers, blastomas, and brain tumors as opposed to those with sarcomas and other carcinomas. The highest cumulative risk for migraine remains in those who were diagnosed with cancer between ages 15 and 19 years.

This month, we will take a look at three new studies investigating risk factors and treatments for headache in children.

Stress has long been noted to be one of the most consistent triggers for migraine attacks. Much has been written and studied regarding the effect of migraine on mood in adults; however, few studies have done the same in the pediatric and adolescent population. Childhood trauma has been associated with the development of chronic migraine as an adult, and behavioral treatments, such as cognitive-behavioral therapy and biofeedback, are considered as effective or more effective for migraine prevention in children compared with preventive medications. Falla and colleagues have quantified the risk for anxiety and depression in children and adolescents with migraine.

The "internalization of symptoms" is defined by the authors as an individual's tendency to react to stress with physical symptoms, including anxiety and depression. These are thought to be elevated in children and adolescents with many effects, including migraine. However, no correlation has yet been shown. Beyond the internalization of symptoms, specific psychiatric diagnoses may also be more prominent in this population.

This study was a meta-analysis of data pooled from studies that assessed migraine-related symptoms as they relate to disorders on the spectrum of anxiety, depression, and trauma-related disorders. Any studies with participants older than 18 years were excluded from this analysis. A total of 80 studies were included. Anxiety symptoms were seen to be significantly higher in children and adolescents with migraine compared to controls and the odds of having an anxiety disorder were higher among those with migraine compared with controls. Depressive symptoms were also significantly higher; however, this effect size was much smaller. The incidence of migraine was not different than that of other headache disorders.

Many patients describe stress as a trigger for migraine and other headache attacks. Mood disorders and childhood trauma are associated with the development of chronic migraine as an adult. This study reveals a two-way connection between mood disorders and headache diagnoses in children. Screening for the underlying symptoms of depression and anxiety should be done when evaluating children and adolescents for headache disorders, and there should be a focus on the treatment of these conditions in addition to treating the headache symptoms.

There are, unfortunately, very few acute pediatric migraine trials. Only a handful of medications have actually been investigated for the treatment of migraine in children younger than 12 years, and only one migraine-specific medication, rizatriptan, is approved in the United States for pediatric use. Because of this, many argue that children and adolescents with migraines end up overusing over-the-counter medication options, increasing the risk for medication overuse headache. In addition, many patients need nonoral acute migraine treatments due to nausea and vomiting or rapid onset migraine attacks.

Yonker and colleagues conducted a phase 3, randomized, double-blind, multicenter trial that only enrolled patients aged 6-11 years, all of whom had a diagnosis of episodic migraine (< 15 days of migraine per month). Children that weighed < 50 kg were given a randomly assigned lower dose of 1 mg or 2.5 mg zolmitriptan nasal spray, and those who weighed > 50 kg were randomly assigned to either 2.5 mg or 5 mg, which is the standard adult dose.

The primary outcome was a standard 2-hour pain freedom level; secondary outcomes included the proportion of improvement at 0.5, 1, and 24 hours post-dose, as well as sustained headache response for the following 2-24 hours and time to rescue medication use. Although 300 patients were enrolled and taken through the run-in process, 114 were discontinued either due to placebo response or because they had no treated migraine during the run-in phase. The mean age was 9.2 years and half of the patients were girls (of note, this is considered an appropriate proportion for pediatric migraine).

The primary endpoint of 2-hour pain freedom was not met; however, more patients in the high-dose treatment group were pain-free after 2 hours than in the placebo group. Several secondary endpoints did achieve statistical significance, including pain-free status at 1 hour post-dose, as well as headache response at 0.5, 1, and 2 hours — all of which were lower in the high-dose treatment group. The lower-dose treatment group was statistically similar to placebo for all the timepoints noted above. Treatment-related adverse events were rare in all groups.

This study did not meet its primary efficacy endpoint. However, it does show safety and effectiveness, enough at least to broaden the use of zolmitriptan for pediatric migraine. Many more effective medications for migraine treatment in adults should follow the lead of this group to find better and more specific treatments for children with migraine.

As we noted above, childhood trauma is associated with the development of chronic migraine in adulthood. Prior studies have defined childhood trauma as physical or emotional abuse primarily, and the correlation between childhood illnesses and headache disorder has not previously been determined. Davidsson and colleagues published a study in the Journal of Cancer Epidemiology that reviewed nationwide database registers longitudinally to better understand this potential risk factor.

The Danish Cancer Register was reviewed for the purpose of identifying anyone in the general Danish population who developed a diagnosis of cancer before age 20 years. The individual identification numbers in that register were linked to data in other nationwide registers for the purpose of determining whether those individuals initiated migraine-specific medications or were admitted for an inpatient hospitalization for migraine. Study participants were also grouped based on cancer type, specifically hematologic cancers involving chemotherapy and central nervous system-directed therapies, brain tumors needing intracranial surgery or radiation to the brain, blastomas or other solid tumors outside of the central nervous system, sarcomas treated with an alkylating chemotherapy, and all other carcinomas.

Among all individuals diagnosed with a childhood cancer, there was a significant increase in overall risk for the need to initiate antimigraine medication. Of interest, this was higher in those diagnosed in their teenage years. Migraine hospitalization was also noted to be higher in nearly all strata, with the exception of those diagnosed with cancer prior to the age of 5 years. The highest risk was also noted in individuals with hematologic cancers, blastomas, and brain tumors as opposed to those with sarcomas and other carcinomas. The highest cumulative risk for migraine remains in those who were diagnosed with cancer between ages 15 and 19 years.

This month, we will take a look at three new studies investigating risk factors and treatments for headache in children.

Stress has long been noted to be one of the most consistent triggers for migraine attacks. Much has been written and studied regarding the effect of migraine on mood in adults; however, few studies have done the same in the pediatric and adolescent population. Childhood trauma has been associated with the development of chronic migraine as an adult, and behavioral treatments, such as cognitive-behavioral therapy and biofeedback, are considered as effective or more effective for migraine prevention in children compared with preventive medications. Falla and colleagues have quantified the risk for anxiety and depression in children and adolescents with migraine.

The "internalization of symptoms" is defined by the authors as an individual's tendency to react to stress with physical symptoms, including anxiety and depression. These are thought to be elevated in children and adolescents with many effects, including migraine. However, no correlation has yet been shown. Beyond the internalization of symptoms, specific psychiatric diagnoses may also be more prominent in this population.

This study was a meta-analysis of data pooled from studies that assessed migraine-related symptoms as they relate to disorders on the spectrum of anxiety, depression, and trauma-related disorders. Any studies with participants older than 18 years were excluded from this analysis. A total of 80 studies were included. Anxiety symptoms were seen to be significantly higher in children and adolescents with migraine compared to controls and the odds of having an anxiety disorder were higher among those with migraine compared with controls. Depressive symptoms were also significantly higher; however, this effect size was much smaller. The incidence of migraine was not different than that of other headache disorders.

Many patients describe stress as a trigger for migraine and other headache attacks. Mood disorders and childhood trauma are associated with the development of chronic migraine as an adult. This study reveals a two-way connection between mood disorders and headache diagnoses in children. Screening for the underlying symptoms of depression and anxiety should be done when evaluating children and adolescents for headache disorders, and there should be a focus on the treatment of these conditions in addition to treating the headache symptoms.

There are, unfortunately, very few acute pediatric migraine trials. Only a handful of medications have actually been investigated for the treatment of migraine in children younger than 12 years, and only one migraine-specific medication, rizatriptan, is approved in the United States for pediatric use. Because of this, many argue that children and adolescents with migraines end up overusing over-the-counter medication options, increasing the risk for medication overuse headache. In addition, many patients need nonoral acute migraine treatments due to nausea and vomiting or rapid onset migraine attacks.

Yonker and colleagues conducted a phase 3, randomized, double-blind, multicenter trial that only enrolled patients aged 6-11 years, all of whom had a diagnosis of episodic migraine (< 15 days of migraine per month). Children that weighed < 50 kg were given a randomly assigned lower dose of 1 mg or 2.5 mg zolmitriptan nasal spray, and those who weighed > 50 kg were randomly assigned to either 2.5 mg or 5 mg, which is the standard adult dose.

The primary outcome was a standard 2-hour pain freedom level; secondary outcomes included the proportion of improvement at 0.5, 1, and 24 hours post-dose, as well as sustained headache response for the following 2-24 hours and time to rescue medication use. Although 300 patients were enrolled and taken through the run-in process, 114 were discontinued either due to placebo response or because they had no treated migraine during the run-in phase. The mean age was 9.2 years and half of the patients were girls (of note, this is considered an appropriate proportion for pediatric migraine).

The primary endpoint of 2-hour pain freedom was not met; however, more patients in the high-dose treatment group were pain-free after 2 hours than in the placebo group. Several secondary endpoints did achieve statistical significance, including pain-free status at 1 hour post-dose, as well as headache response at 0.5, 1, and 2 hours — all of which were lower in the high-dose treatment group. The lower-dose treatment group was statistically similar to placebo for all the timepoints noted above. Treatment-related adverse events were rare in all groups.

This study did not meet its primary efficacy endpoint. However, it does show safety and effectiveness, enough at least to broaden the use of zolmitriptan for pediatric migraine. Many more effective medications for migraine treatment in adults should follow the lead of this group to find better and more specific treatments for children with migraine.

As we noted above, childhood trauma is associated with the development of chronic migraine in adulthood. Prior studies have defined childhood trauma as physical or emotional abuse primarily, and the correlation between childhood illnesses and headache disorder has not previously been determined. Davidsson and colleagues published a study in the Journal of Cancer Epidemiology that reviewed nationwide database registers longitudinally to better understand this potential risk factor.

The Danish Cancer Register was reviewed for the purpose of identifying anyone in the general Danish population who developed a diagnosis of cancer before age 20 years. The individual identification numbers in that register were linked to data in other nationwide registers for the purpose of determining whether those individuals initiated migraine-specific medications or were admitted for an inpatient hospitalization for migraine. Study participants were also grouped based on cancer type, specifically hematologic cancers involving chemotherapy and central nervous system-directed therapies, brain tumors needing intracranial surgery or radiation to the brain, blastomas or other solid tumors outside of the central nervous system, sarcomas treated with an alkylating chemotherapy, and all other carcinomas.

Among all individuals diagnosed with a childhood cancer, there was a significant increase in overall risk for the need to initiate antimigraine medication. Of interest, this was higher in those diagnosed in their teenage years. Migraine hospitalization was also noted to be higher in nearly all strata, with the exception of those diagnosed with cancer prior to the age of 5 years. The highest risk was also noted in individuals with hematologic cancers, blastomas, and brain tumors as opposed to those with sarcomas and other carcinomas. The highest cumulative risk for migraine remains in those who were diagnosed with cancer between ages 15 and 19 years.