Migraine ICYMI

Key clinical point: A higher proportion of patients with migraine treated with atogepant vs. placebo showed a significant reduction in the monthly migraine days (MMD) during the 12 weeks of treatment.

Major finding: At 12 weeks, ≥50% reduction in the mean MMD was achieved by a significantly higher proportion of patients receiving 10 mg (55.6%), 30 mg (58.7%), or 60 mg (60.8%) atogepant compared with placebo (29.0%; all P < .001), with findings being similar for ≥25%, ≥75%, and 100% reduction in mean MMD. The incidence of treatment-emergent adverse events was similar among the treatment groups.

Study details: This was a secondary analysis of the ADVANCE trial including 873 patients with a ≥1-year history of migraine with or without aura who were randomly assigned to receive atogepant (10, 30, or 60 mg; n = 659) or placebo (n = 214).

Disclosures: This study was sponsored by Allergan. Some authors declared receiving speaking fees, consulting fees, personal fees, research grants, or royalties or owing stocks or stock options in various sources, including Allergan/AbbVie.

Source: Lipton RB et al. Rates of response to atogepant for migraine prophylaxis among adults:

A secondary analysis of a randomized clinical trial. JAMA Netw Open. 2022;5(6):e2215499 Jun 8). Doi:  10.1001/jamanetworkopen.2022.15499

Key clinical point: A higher proportion of patients with migraine treated with atogepant vs. placebo showed a significant reduction in the monthly migraine days (MMD) during the 12 weeks of treatment.

Major finding: At 12 weeks, ≥50% reduction in the mean MMD was achieved by a significantly higher proportion of patients receiving 10 mg (55.6%), 30 mg (58.7%), or 60 mg (60.8%) atogepant compared with placebo (29.0%; all P < .001), with findings being similar for ≥25%, ≥75%, and 100% reduction in mean MMD. The incidence of treatment-emergent adverse events was similar among the treatment groups.

Study details: This was a secondary analysis of the ADVANCE trial including 873 patients with a ≥1-year history of migraine with or without aura who were randomly assigned to receive atogepant (10, 30, or 60 mg; n = 659) or placebo (n = 214).

Disclosures: This study was sponsored by Allergan. Some authors declared receiving speaking fees, consulting fees, personal fees, research grants, or royalties or owing stocks or stock options in various sources, including Allergan/AbbVie.

Source: Lipton RB et al. Rates of response to atogepant for migraine prophylaxis among adults:

A secondary analysis of a randomized clinical trial. JAMA Netw Open. 2022;5(6):e2215499 Jun 8). Doi:  10.1001/jamanetworkopen.2022.15499

Key clinical point: A higher proportion of patients with migraine treated with atogepant vs. placebo showed a significant reduction in the monthly migraine days (MMD) during the 12 weeks of treatment.

Major finding: At 12 weeks, ≥50% reduction in the mean MMD was achieved by a significantly higher proportion of patients receiving 10 mg (55.6%), 30 mg (58.7%), or 60 mg (60.8%) atogepant compared with placebo (29.0%; all P < .001), with findings being similar for ≥25%, ≥75%, and 100% reduction in mean MMD. The incidence of treatment-emergent adverse events was similar among the treatment groups.

Study details: This was a secondary analysis of the ADVANCE trial including 873 patients with a ≥1-year history of migraine with or without aura who were randomly assigned to receive atogepant (10, 30, or 60 mg; n = 659) or placebo (n = 214).

Disclosures: This study was sponsored by Allergan. Some authors declared receiving speaking fees, consulting fees, personal fees, research grants, or royalties or owing stocks or stock options in various sources, including Allergan/AbbVie.

Source: Lipton RB et al. Rates of response to atogepant for migraine prophylaxis among adults:

A secondary analysis of a randomized clinical trial. JAMA Netw Open. 2022;5(6):e2215499 Jun 8). Doi:  10.1001/jamanetworkopen.2022.15499

Key clinical point: Migraine was significantly associated with fetal-type posterior cerebral artery (PCA) status in patients with ischemic stroke.

Major finding: Fetal-type PCA status was independently associated with migraine (adjusted odds ratio [aOR] 2.06; P = .005). The other factors independently associated with migraine were hypertension (aOR 1.97; P = .011), female gender (aOR 2.03; P = .017) and National Institutes of Health Stroke Scale score at admission (aOR 1.08; P = .018).

Study details: This cross-sectional study included 750 patients aged ≥18 years with ischemic stroke, of which 11.3% had migraine history.

Disclosures: This study received no specific funding. The authors declared no conflicts of interest.

Source: Zhang Y et al. The association between migraine and fetal-type posterior cerebral artery in patients with ischemic stroke. Cerebrovasc Dis. 2022 (May 13). Doi: 10.1159/000524616

Key clinical point: Migraine was significantly associated with fetal-type posterior cerebral artery (PCA) status in patients with ischemic stroke.

Major finding: Fetal-type PCA status was independently associated with migraine (adjusted odds ratio [aOR] 2.06; P = .005). The other factors independently associated with migraine were hypertension (aOR 1.97; P = .011), female gender (aOR 2.03; P = .017) and National Institutes of Health Stroke Scale score at admission (aOR 1.08; P = .018).

Study details: This cross-sectional study included 750 patients aged ≥18 years with ischemic stroke, of which 11.3% had migraine history.

Disclosures: This study received no specific funding. The authors declared no conflicts of interest.

Source: Zhang Y et al. The association between migraine and fetal-type posterior cerebral artery in patients with ischemic stroke. Cerebrovasc Dis. 2022 (May 13). Doi: 10.1159/000524616

Key clinical point: Migraine was significantly associated with fetal-type posterior cerebral artery (PCA) status in patients with ischemic stroke.

Major finding: Fetal-type PCA status was independently associated with migraine (adjusted odds ratio [aOR] 2.06; P = .005). The other factors independently associated with migraine were hypertension (aOR 1.97; P = .011), female gender (aOR 2.03; P = .017) and National Institutes of Health Stroke Scale score at admission (aOR 1.08; P = .018).

Study details: This cross-sectional study included 750 patients aged ≥18 years with ischemic stroke, of which 11.3% had migraine history.

Disclosures: This study received no specific funding. The authors declared no conflicts of interest.

Source: Zhang Y et al. The association between migraine and fetal-type posterior cerebral artery in patients with ischemic stroke. Cerebrovasc Dis. 2022 (May 13). Doi: 10.1159/000524616

Key clinical point: Erenumab is effective and well tolerated in patients with chronic migraine who did not respond to previous migraine treatments.

Major finding: Overall, 71.4% of patients treated with erenumab achieved ≥30% reduction in monthly migraine days from baseline to 9-12 weeks and 34.0% of patients at all assessment periods through 52 weeks. Constipation was the most common adverse event and 13.7% of patients discontinued treatment because of a lack of tolerability.

Study details: The data come from a 52-week, prospective, observational study including 300 patients with chronic migraine who received ≥1 dose of erenumab, of which 273 and 119 patients completed 12 and 52 weeks of treatment, respectively.

Disclosures: This study was funded by and conducted in collaboration with Novartis Pharma AG, Basel, Switzerland. Some authors reported being consultants, speakers, or scientific advisors for or receiving personal fees from various sources, including Novartis. Two authors declared being employees of and holding stocks in Novartis.

Source: Cullum CK et al. Real-world long-term efficacy and safety of erenumab in adults with chronic migraine: A 52-week, single-center, prospective, observational study. J Headache Pain. 2022;23(1):61 Jun 2). Doi: 10.1186/s10194-022-01433-9

Key clinical point: Erenumab is effective and well tolerated in patients with chronic migraine who did not respond to previous migraine treatments.

Major finding: Overall, 71.4% of patients treated with erenumab achieved ≥30% reduction in monthly migraine days from baseline to 9-12 weeks and 34.0% of patients at all assessment periods through 52 weeks. Constipation was the most common adverse event and 13.7% of patients discontinued treatment because of a lack of tolerability.

Study details: The data come from a 52-week, prospective, observational study including 300 patients with chronic migraine who received ≥1 dose of erenumab, of which 273 and 119 patients completed 12 and 52 weeks of treatment, respectively.

Disclosures: This study was funded by and conducted in collaboration with Novartis Pharma AG, Basel, Switzerland. Some authors reported being consultants, speakers, or scientific advisors for or receiving personal fees from various sources, including Novartis. Two authors declared being employees of and holding stocks in Novartis.

Source: Cullum CK et al. Real-world long-term efficacy and safety of erenumab in adults with chronic migraine: A 52-week, single-center, prospective, observational study. J Headache Pain. 2022;23(1):61 Jun 2). Doi: 10.1186/s10194-022-01433-9

Key clinical point: Erenumab is effective and well tolerated in patients with chronic migraine who did not respond to previous migraine treatments.

Major finding: Overall, 71.4% of patients treated with erenumab achieved ≥30% reduction in monthly migraine days from baseline to 9-12 weeks and 34.0% of patients at all assessment periods through 52 weeks. Constipation was the most common adverse event and 13.7% of patients discontinued treatment because of a lack of tolerability.

Study details: The data come from a 52-week, prospective, observational study including 300 patients with chronic migraine who received ≥1 dose of erenumab, of which 273 and 119 patients completed 12 and 52 weeks of treatment, respectively.

Disclosures: This study was funded by and conducted in collaboration with Novartis Pharma AG, Basel, Switzerland. Some authors reported being consultants, speakers, or scientific advisors for or receiving personal fees from various sources, including Novartis. Two authors declared being employees of and holding stocks in Novartis.

Source: Cullum CK et al. Real-world long-term efficacy and safety of erenumab in adults with chronic migraine: A 52-week, single-center, prospective, observational study. J Headache Pain. 2022;23(1):61 Jun 2). Doi: 10.1186/s10194-022-01433-9

Key clinical point: Intravenous (IV) ketorolac plus metoclopramide failed to improve pain intensity in children presenting to the emergency department (ED) for the acute treatment of migraine compared with metoclopramide monotherapy.

Major finding: The mean change in pain intensity as assessed by a 100 mm Visual Analog Scale at 120 minutes was −44 mm (95% CI 32-57 mm) in the monotherapy group and −36 mm (95% CI 23-49 mm) in the ketorolac group, corresponding to a mean difference of 8 mm between the groups (P = .355), with no significant between-group difference in headache recurrence and adverse events.

Study details: Findings are from a double-blind, randomized placebo-controlled trial including 53 children aged 6-17 years presenting to the ED for the acute treatment of migraine. They were randomly assigned to receive IV ketorolac plus metoclopramide (n = 26) or IV metoclopramide plus placebo (n = 27).

Disclosures: This study was funded by the Canadian Institutes of Health Research through a Drug Safety and Effectiveness Network grant. The authors declared no conflicts of interest.

Source: Richer LP et al. A randomized trial of ketorolac and metoclopramide for migraine in the emergency department. Headache. 2022 ; 62: 681-689 (Jun 7). Doi: 10.1111/head.14307

Key clinical point: Intravenous (IV) ketorolac plus metoclopramide failed to improve pain intensity in children presenting to the emergency department (ED) for the acute treatment of migraine compared with metoclopramide monotherapy.

Major finding: The mean change in pain intensity as assessed by a 100 mm Visual Analog Scale at 120 minutes was −44 mm (95% CI 32-57 mm) in the monotherapy group and −36 mm (95% CI 23-49 mm) in the ketorolac group, corresponding to a mean difference of 8 mm between the groups (P = .355), with no significant between-group difference in headache recurrence and adverse events.

Study details: Findings are from a double-blind, randomized placebo-controlled trial including 53 children aged 6-17 years presenting to the ED for the acute treatment of migraine. They were randomly assigned to receive IV ketorolac plus metoclopramide (n = 26) or IV metoclopramide plus placebo (n = 27).

Disclosures: This study was funded by the Canadian Institutes of Health Research through a Drug Safety and Effectiveness Network grant. The authors declared no conflicts of interest.

Source: Richer LP et al. A randomized trial of ketorolac and metoclopramide for migraine in the emergency department. Headache. 2022 ; 62: 681-689 (Jun 7). Doi: 10.1111/head.14307

Key clinical point: Intravenous (IV) ketorolac plus metoclopramide failed to improve pain intensity in children presenting to the emergency department (ED) for the acute treatment of migraine compared with metoclopramide monotherapy.

Major finding: The mean change in pain intensity as assessed by a 100 mm Visual Analog Scale at 120 minutes was −44 mm (95% CI 32-57 mm) in the monotherapy group and −36 mm (95% CI 23-49 mm) in the ketorolac group, corresponding to a mean difference of 8 mm between the groups (P = .355), with no significant between-group difference in headache recurrence and adverse events.

Study details: Findings are from a double-blind, randomized placebo-controlled trial including 53 children aged 6-17 years presenting to the ED for the acute treatment of migraine. They were randomly assigned to receive IV ketorolac plus metoclopramide (n = 26) or IV metoclopramide plus placebo (n = 27).

Disclosures: This study was funded by the Canadian Institutes of Health Research through a Drug Safety and Effectiveness Network grant. The authors declared no conflicts of interest.

Source: Richer LP et al. A randomized trial of ketorolac and metoclopramide for migraine in the emergency department. Headache. 2022 ; 62: 681-689 (Jun 7). Doi: 10.1111/head.14307

Key clinical point: Patients hospitalized with refractory chronic migraine treated with continuous multiday lidocaine infusions showed a significant improvement in pain immediately after the infusion, with some patients maintaining this improvement at 1 month.

Major finding: Median pain ratings decreased from 7.0 on admission to 1.0 at discharge (P < .001), with 87.8% of admissions being cases of acute response. Among acute responders with data on average pain, 43.2% demonstrated sustained response at 1 month.

Study details: The data come from a retrospective cohort study of 609 hospital admissions involving 537 patients with refractory chronic migraine who received continuous multiday lidocaine infusions.

Disclosures: This study did not receive any specific funding. SD Silberstein declared serving as a consultant and advisory panel member for and receiving honoraria from various sources.

Source: Schwenk ES et al. Lidocaine infusions for refractory chronic migraine: A retrospective analysis. Reg Anesth Pain Med. 2022;47:408-413 (May 23). Doi: 10.1136/rapm-2021-103180

Key clinical point: Patients hospitalized with refractory chronic migraine treated with continuous multiday lidocaine infusions showed a significant improvement in pain immediately after the infusion, with some patients maintaining this improvement at 1 month.

Major finding: Median pain ratings decreased from 7.0 on admission to 1.0 at discharge (P < .001), with 87.8% of admissions being cases of acute response. Among acute responders with data on average pain, 43.2% demonstrated sustained response at 1 month.

Study details: The data come from a retrospective cohort study of 609 hospital admissions involving 537 patients with refractory chronic migraine who received continuous multiday lidocaine infusions.

Disclosures: This study did not receive any specific funding. SD Silberstein declared serving as a consultant and advisory panel member for and receiving honoraria from various sources.

Source: Schwenk ES et al. Lidocaine infusions for refractory chronic migraine: A retrospective analysis. Reg Anesth Pain Med. 2022;47:408-413 (May 23). Doi: 10.1136/rapm-2021-103180

Key clinical point: Patients hospitalized with refractory chronic migraine treated with continuous multiday lidocaine infusions showed a significant improvement in pain immediately after the infusion, with some patients maintaining this improvement at 1 month.

Major finding: Median pain ratings decreased from 7.0 on admission to 1.0 at discharge (P < .001), with 87.8% of admissions being cases of acute response. Among acute responders with data on average pain, 43.2% demonstrated sustained response at 1 month.

Study details: The data come from a retrospective cohort study of 609 hospital admissions involving 537 patients with refractory chronic migraine who received continuous multiday lidocaine infusions.

Disclosures: This study did not receive any specific funding. SD Silberstein declared serving as a consultant and advisory panel member for and receiving honoraria from various sources.

Source: Schwenk ES et al. Lidocaine infusions for refractory chronic migraine: A retrospective analysis. Reg Anesth Pain Med. 2022;47:408-413 (May 23). Doi: 10.1136/rapm-2021-103180

Key clinical point: Cold interventions, including cold-gel headband, cold-gel cap, and intraoral cooling, provide instant relief from pain in patients with migraine; however, their long-term effects on pain are not significant.

Major finding: The cold intervention group vs. control group led to a significant reduction in pain on a visual analog scale score at 30 minutes (standard mean difference [SMD] −3.21; P = .02) but a nonsignificant reduction in the score at 24 hours (SMD −0.44; P = .07) after the intervention.

Study details: This was a meta-analysis of 6 studies (4 randomized controlled trials and 2 quasi-experimental studies) that included adult patients with migraine who underwent a cold intervention.

Disclosures: The study was partially sponsored by the Ministry of Science and Technology, Israel. The authors declared no conflicts of interest.

Source: Hsu Y-Y et al. Cold intervention for relieving migraine symptoms: A systematic review and meta-analysis. J Clin Nurs. 2022 (May 20). Doi: 10.1111/jocn.16368

Key clinical point: Cold interventions, including cold-gel headband, cold-gel cap, and intraoral cooling, provide instant relief from pain in patients with migraine; however, their long-term effects on pain are not significant.

Major finding: The cold intervention group vs. control group led to a significant reduction in pain on a visual analog scale score at 30 minutes (standard mean difference [SMD] −3.21; P = .02) but a nonsignificant reduction in the score at 24 hours (SMD −0.44; P = .07) after the intervention.

Study details: This was a meta-analysis of 6 studies (4 randomized controlled trials and 2 quasi-experimental studies) that included adult patients with migraine who underwent a cold intervention.

Disclosures: The study was partially sponsored by the Ministry of Science and Technology, Israel. The authors declared no conflicts of interest.

Source: Hsu Y-Y et al. Cold intervention for relieving migraine symptoms: A systematic review and meta-analysis. J Clin Nurs. 2022 (May 20). Doi: 10.1111/jocn.16368

Key clinical point: Cold interventions, including cold-gel headband, cold-gel cap, and intraoral cooling, provide instant relief from pain in patients with migraine; however, their long-term effects on pain are not significant.

Major finding: The cold intervention group vs. control group led to a significant reduction in pain on a visual analog scale score at 30 minutes (standard mean difference [SMD] −3.21; P = .02) but a nonsignificant reduction in the score at 24 hours (SMD −0.44; P = .07) after the intervention.

Study details: This was a meta-analysis of 6 studies (4 randomized controlled trials and 2 quasi-experimental studies) that included adult patients with migraine who underwent a cold intervention.

Disclosures: The study was partially sponsored by the Ministry of Science and Technology, Israel. The authors declared no conflicts of interest.

Source: Hsu Y-Y et al. Cold intervention for relieving migraine symptoms: A systematic review and meta-analysis. J Clin Nurs. 2022 (May 20). Doi: 10.1111/jocn.16368

Key clinical point: As a migraine preventive agent, fremanezumab is effective across the full patient spectrum, including those with episodic migraine (EM), chronic migraine (CM), and difficult-to-treat (DTT) migraine (patients with medication overuse [MO], major depressive disorder [MDD], generalized anxiety disorder [GAD], or exposure to a different calcitonin gene-related peptide monoclonal antibody [CGRP mAb]).

Major finding: At month 6, the mean monthly migraine days reduced in patients with EM (−7.7 days), CM (−10.1 days), MO (−10.8 days), MDD (−9.9 days), GAD (−9.5 days), and prior CGRP mAb exposure (−9.0 days).

Study details: Findings are from a retrospective, online chart review study that collected data from 1003 patients with EM/CM aged ≥18 years at fremanezumab initiation, including those with DTT migraine, and 421 clinicians treating patients with EM/CM in a US-based practice.

Disclosures: This study was funded by Teva Pharmaceuticals. All authors declared being current or former employees of Teva Pharmaceuticals or Analysis Group, which performed these analyses funded by Teva.

Source: Driessen MT et al. Real-world effectiveness after initiating fremanezumab treatment in US patients with episodic and chronic migraine or difficult-to-treat migraine. J Headache Pain. 2022;23:56 (May 16). Doi: 10.1186/s10194-022-01415-x

Key clinical point: As a migraine preventive agent, fremanezumab is effective across the full patient spectrum, including those with episodic migraine (EM), chronic migraine (CM), and difficult-to-treat (DTT) migraine (patients with medication overuse [MO], major depressive disorder [MDD], generalized anxiety disorder [GAD], or exposure to a different calcitonin gene-related peptide monoclonal antibody [CGRP mAb]).

Major finding: At month 6, the mean monthly migraine days reduced in patients with EM (−7.7 days), CM (−10.1 days), MO (−10.8 days), MDD (−9.9 days), GAD (−9.5 days), and prior CGRP mAb exposure (−9.0 days).

Study details: Findings are from a retrospective, online chart review study that collected data from 1003 patients with EM/CM aged ≥18 years at fremanezumab initiation, including those with DTT migraine, and 421 clinicians treating patients with EM/CM in a US-based practice.

Disclosures: This study was funded by Teva Pharmaceuticals. All authors declared being current or former employees of Teva Pharmaceuticals or Analysis Group, which performed these analyses funded by Teva.

Source: Driessen MT et al. Real-world effectiveness after initiating fremanezumab treatment in US patients with episodic and chronic migraine or difficult-to-treat migraine. J Headache Pain. 2022;23:56 (May 16). Doi: 10.1186/s10194-022-01415-x

Key clinical point: As a migraine preventive agent, fremanezumab is effective across the full patient spectrum, including those with episodic migraine (EM), chronic migraine (CM), and difficult-to-treat (DTT) migraine (patients with medication overuse [MO], major depressive disorder [MDD], generalized anxiety disorder [GAD], or exposure to a different calcitonin gene-related peptide monoclonal antibody [CGRP mAb]).

Major finding: At month 6, the mean monthly migraine days reduced in patients with EM (−7.7 days), CM (−10.1 days), MO (−10.8 days), MDD (−9.9 days), GAD (−9.5 days), and prior CGRP mAb exposure (−9.0 days).

Study details: Findings are from a retrospective, online chart review study that collected data from 1003 patients with EM/CM aged ≥18 years at fremanezumab initiation, including those with DTT migraine, and 421 clinicians treating patients with EM/CM in a US-based practice.

Disclosures: This study was funded by Teva Pharmaceuticals. All authors declared being current or former employees of Teva Pharmaceuticals or Analysis Group, which performed these analyses funded by Teva.

Source: Driessen MT et al. Real-world effectiveness after initiating fremanezumab treatment in US patients with episodic and chronic migraine or difficult-to-treat migraine. J Headache Pain. 2022;23:56 (May 16). Doi: 10.1186/s10194-022-01415-x

Key clinical point: A dose of 120 mg  galcanezumab  subcutaneously safely and effectively reduces headache frequency, intensity, and duration in patients with episodic and chronic migraine and previous unsuccessful preventive treatments.

Major finding: The 6-month galcanezumab treatment led to a significant decrease in the headache attack frequency (−14.19 headache days/month; P < .001), headache attack pain intensity (numerical rating scale score −2.74; P < .001), and headache attack duration (−6.65 hours; P < .001).

Study details: The data come from an observational, prospective study including 43 patients with episodic high frequency and chronic migraine and unsuccessful treatment with ≥3 preventive medication classes who received monthly 120 mg galcanezumab subcutaneously.

Disclosures: This study received no specific funding. Some authors declared receiving speaker honoraria and travel funding from various sources and serving as associate editors of neurology journals such as European Journal of Neurology.

Source: Silvestro M et al. Galcanezumab effect on “whole pain burden” and multidimensional outcomes in migraine patients with previous unsuccessful treatments: A real-world experience. J Headache Pain. 2022;23:69 (Jun 13. Doi:  10.1186/s10194-022-01436-6

Key clinical point: A dose of 120 mg  galcanezumab  subcutaneously safely and effectively reduces headache frequency, intensity, and duration in patients with episodic and chronic migraine and previous unsuccessful preventive treatments.

Major finding: The 6-month galcanezumab treatment led to a significant decrease in the headache attack frequency (−14.19 headache days/month; P < .001), headache attack pain intensity (numerical rating scale score −2.74; P < .001), and headache attack duration (−6.65 hours; P < .001).

Study details: The data come from an observational, prospective study including 43 patients with episodic high frequency and chronic migraine and unsuccessful treatment with ≥3 preventive medication classes who received monthly 120 mg galcanezumab subcutaneously.

Disclosures: This study received no specific funding. Some authors declared receiving speaker honoraria and travel funding from various sources and serving as associate editors of neurology journals such as European Journal of Neurology.

Source: Silvestro M et al. Galcanezumab effect on “whole pain burden” and multidimensional outcomes in migraine patients with previous unsuccessful treatments: A real-world experience. J Headache Pain. 2022;23:69 (Jun 13. Doi:  10.1186/s10194-022-01436-6

Key clinical point: A dose of 120 mg  galcanezumab  subcutaneously safely and effectively reduces headache frequency, intensity, and duration in patients with episodic and chronic migraine and previous unsuccessful preventive treatments.

Major finding: The 6-month galcanezumab treatment led to a significant decrease in the headache attack frequency (−14.19 headache days/month; P < .001), headache attack pain intensity (numerical rating scale score −2.74; P < .001), and headache attack duration (−6.65 hours; P < .001).

Study details: The data come from an observational, prospective study including 43 patients with episodic high frequency and chronic migraine and unsuccessful treatment with ≥3 preventive medication classes who received monthly 120 mg galcanezumab subcutaneously.

Disclosures: This study received no specific funding. Some authors declared receiving speaker honoraria and travel funding from various sources and serving as associate editors of neurology journals such as European Journal of Neurology.

Source: Silvestro M et al. Galcanezumab effect on “whole pain burden” and multidimensional outcomes in migraine patients with previous unsuccessful treatments: A real-world experience. J Headache Pain. 2022;23:69 (Jun 13. Doi:  10.1186/s10194-022-01436-6

Key clinical point: A higher dose of onabotulinumtoxinA (Botox®) may decrease the number of headache and severe headache days in patients with chronic migraine who had an unsatisfactory response to the conventional 150-unit dose.

Major finding: After receiving 3 rounds of 200 units onabotulinumtoxinA, patients had a significant reduction in headache (13.62 ± 10.79 to 11.02 ± 10.61) and severe headache (5.88 ± 6.73 to 4.01 ± 4.89) days (both P < .001).

Study details: This retrospective paired comparison study included 175 patients with chronic migraine who received ≥3 rounds of 150 units onabotulinumtoxinA followed by ≥3 rounds of 200 units onabotulinumtoxinA.

Disclosures: This study did not receive any funding. The authors declared no conflicts of interest.

Source: Zandieh A, Cutrer FM. OnabotulinumtoxinA in chronic migraine: Is the response dose dependent? BMC Neurol. 2022;22:218 (Jun 13). Doi: 10.1186/s12883-022-02742-x

Key clinical point: A higher dose of onabotulinumtoxinA (Botox®) may decrease the number of headache and severe headache days in patients with chronic migraine who had an unsatisfactory response to the conventional 150-unit dose.

Major finding: After receiving 3 rounds of 200 units onabotulinumtoxinA, patients had a significant reduction in headache (13.62 ± 10.79 to 11.02 ± 10.61) and severe headache (5.88 ± 6.73 to 4.01 ± 4.89) days (both P < .001).

Study details: This retrospective paired comparison study included 175 patients with chronic migraine who received ≥3 rounds of 150 units onabotulinumtoxinA followed by ≥3 rounds of 200 units onabotulinumtoxinA.

Disclosures: This study did not receive any funding. The authors declared no conflicts of interest.

Source: Zandieh A, Cutrer FM. OnabotulinumtoxinA in chronic migraine: Is the response dose dependent? BMC Neurol. 2022;22:218 (Jun 13). Doi: 10.1186/s12883-022-02742-x

Key clinical point: A higher dose of onabotulinumtoxinA (Botox®) may decrease the number of headache and severe headache days in patients with chronic migraine who had an unsatisfactory response to the conventional 150-unit dose.

Major finding: After receiving 3 rounds of 200 units onabotulinumtoxinA, patients had a significant reduction in headache (13.62 ± 10.79 to 11.02 ± 10.61) and severe headache (5.88 ± 6.73 to 4.01 ± 4.89) days (both P < .001).

Study details: This retrospective paired comparison study included 175 patients with chronic migraine who received ≥3 rounds of 150 units onabotulinumtoxinA followed by ≥3 rounds of 200 units onabotulinumtoxinA.

Disclosures: This study did not receive any funding. The authors declared no conflicts of interest.

Source: Zandieh A, Cutrer FM. OnabotulinumtoxinA in chronic migraine: Is the response dose dependent? BMC Neurol. 2022;22:218 (Jun 13). Doi: 10.1186/s12883-022-02742-x

DENVER – A new study finds that females with male twins are more likely to suffer from migraines without aura than are those with female twins, even though testosterone is thought to be protective. The findings, presented at the annual meeting of the American Headache Society, also hint at a possible role played by the prenatal environment.

The study marks the first time a large-scale twin dataset has been used to assess sex differences in underlying genetic factors of migraine, lead author Morgan Fitzgerald, a senior research associate at the University of California at San Diego, said in a presentation at the conference. The findings were previously published in Frontiers in Pain Research.
 

More than genetics

The researchers analyzed data regarding 51,872 participants in the Swedish Twin Registry. According to Dr. Fitzgerald, the database is ideal because it is large and includes both genders.

Per the database, female twins were more likely to have migraines without aura than were male twins (17.6% vs. 5.5%, respectively), reflecting global numbers that suggest 18% of females and 6% of males have migraines each year.

To better understand heritability, the researchers compared identical twins with fraternal twins, and looked for gender-related correlations, Dr. Fitzgerald said.

One analysis suggests that migraine is equally heritable in men and women with a broad sense heritability of 0.45 (95% confidence interval [CI], 0.40-0.50). However, another analysis model provides evidence “that there are differences in the underlying genetic factors contributing to migraine across males and females,” she said.

Unexpectedly, the researchers also found that females with male twins were more likely to have migraines than were those with female twins (odds ratio, 1.51, 95% CI, 1.26-1.81) even though males are less affected by the headaches.

“These results suggest that the prominent sex difference in migraine prevalence is not entirely accounted for by genetic factors, while demonstrating that masculinization of the prenatal environment may increase migraine risk for females,” the authors wrote in the published study. “This effect points to a potential prenatal neuroendocrine factor in the development of migraine.”
 

Probing the migraine gender gap

Commenting on the research, University of Texas at Dallas neuroscientist and headache researcher Gregory Dussor, PhD, said the new study is “a very unique approach to address the question of nature versus nurture in migraine. It was well designed and used robust statistical modeling.”

As for the findings, “the conclusion that genetics do not explain sex differences in migraine risk by themselves is not surprising given how big of a role hormones in later life are likely to play in the disease and how many factors there are that can influence hormone levels,” he said.

“On the other hand, the surprising part of the findings was that the presence of a male co-twin increases risk of migraine in females. I would have expected to see the opposite, given the lower prevalence of migraine in males and the seemingly protective role that male hormones can play in migraine.”

Overall, the study adds to data implicating environment and hormones in the migraine gender gap, he said. “One thing I wonder from this study is what influence a female co-twin growing up with a male co-twin can have on migraine susceptibility. That female co-twin may end up with a very different set of childhood experiences than if she was with another female co-twin. Twins generally spend an enormous amount of time together and the same sex versus opposite sex experiences are likely to be quite different. This may have an influence on migraine later in life.”

As for the value of the study in terms of diagnosis, treatment, or prevention of migraine, Dr. Dussor said, “it’s possible it could help to identify risk factors for higher migraine susceptibility but it’s far too early to know how this could be used.”

The authors have no disclosures. Dr. Dussor disclosed an NIH-funded grant to study the role of the hormone prolactin in preclinical migraine models.

DENVER – A new study finds that females with male twins are more likely to suffer from migraines without aura than are those with female twins, even though testosterone is thought to be protective. The findings, presented at the annual meeting of the American Headache Society, also hint at a possible role played by the prenatal environment.

The study marks the first time a large-scale twin dataset has been used to assess sex differences in underlying genetic factors of migraine, lead author Morgan Fitzgerald, a senior research associate at the University of California at San Diego, said in a presentation at the conference. The findings were previously published in Frontiers in Pain Research.
 

More than genetics

The researchers analyzed data regarding 51,872 participants in the Swedish Twin Registry. According to Dr. Fitzgerald, the database is ideal because it is large and includes both genders.

Per the database, female twins were more likely to have migraines without aura than were male twins (17.6% vs. 5.5%, respectively), reflecting global numbers that suggest 18% of females and 6% of males have migraines each year.

To better understand heritability, the researchers compared identical twins with fraternal twins, and looked for gender-related correlations, Dr. Fitzgerald said.

One analysis suggests that migraine is equally heritable in men and women with a broad sense heritability of 0.45 (95% confidence interval [CI], 0.40-0.50). However, another analysis model provides evidence “that there are differences in the underlying genetic factors contributing to migraine across males and females,” she said.

Unexpectedly, the researchers also found that females with male twins were more likely to have migraines than were those with female twins (odds ratio, 1.51, 95% CI, 1.26-1.81) even though males are less affected by the headaches.

“These results suggest that the prominent sex difference in migraine prevalence is not entirely accounted for by genetic factors, while demonstrating that masculinization of the prenatal environment may increase migraine risk for females,” the authors wrote in the published study. “This effect points to a potential prenatal neuroendocrine factor in the development of migraine.”
 

Probing the migraine gender gap

Commenting on the research, University of Texas at Dallas neuroscientist and headache researcher Gregory Dussor, PhD, said the new study is “a very unique approach to address the question of nature versus nurture in migraine. It was well designed and used robust statistical modeling.”

As for the findings, “the conclusion that genetics do not explain sex differences in migraine risk by themselves is not surprising given how big of a role hormones in later life are likely to play in the disease and how many factors there are that can influence hormone levels,” he said.

“On the other hand, the surprising part of the findings was that the presence of a male co-twin increases risk of migraine in females. I would have expected to see the opposite, given the lower prevalence of migraine in males and the seemingly protective role that male hormones can play in migraine.”

Overall, the study adds to data implicating environment and hormones in the migraine gender gap, he said. “One thing I wonder from this study is what influence a female co-twin growing up with a male co-twin can have on migraine susceptibility. That female co-twin may end up with a very different set of childhood experiences than if she was with another female co-twin. Twins generally spend an enormous amount of time together and the same sex versus opposite sex experiences are likely to be quite different. This may have an influence on migraine later in life.”

As for the value of the study in terms of diagnosis, treatment, or prevention of migraine, Dr. Dussor said, “it’s possible it could help to identify risk factors for higher migraine susceptibility but it’s far too early to know how this could be used.”

The authors have no disclosures. Dr. Dussor disclosed an NIH-funded grant to study the role of the hormone prolactin in preclinical migraine models.

DENVER – A new study finds that females with male twins are more likely to suffer from migraines without aura than are those with female twins, even though testosterone is thought to be protective. The findings, presented at the annual meeting of the American Headache Society, also hint at a possible role played by the prenatal environment.

The study marks the first time a large-scale twin dataset has been used to assess sex differences in underlying genetic factors of migraine, lead author Morgan Fitzgerald, a senior research associate at the University of California at San Diego, said in a presentation at the conference. The findings were previously published in Frontiers in Pain Research.
 

More than genetics

The researchers analyzed data regarding 51,872 participants in the Swedish Twin Registry. According to Dr. Fitzgerald, the database is ideal because it is large and includes both genders.

Per the database, female twins were more likely to have migraines without aura than were male twins (17.6% vs. 5.5%, respectively), reflecting global numbers that suggest 18% of females and 6% of males have migraines each year.

To better understand heritability, the researchers compared identical twins with fraternal twins, and looked for gender-related correlations, Dr. Fitzgerald said.

One analysis suggests that migraine is equally heritable in men and women with a broad sense heritability of 0.45 (95% confidence interval [CI], 0.40-0.50). However, another analysis model provides evidence “that there are differences in the underlying genetic factors contributing to migraine across males and females,” she said.

Unexpectedly, the researchers also found that females with male twins were more likely to have migraines than were those with female twins (odds ratio, 1.51, 95% CI, 1.26-1.81) even though males are less affected by the headaches.

“These results suggest that the prominent sex difference in migraine prevalence is not entirely accounted for by genetic factors, while demonstrating that masculinization of the prenatal environment may increase migraine risk for females,” the authors wrote in the published study. “This effect points to a potential prenatal neuroendocrine factor in the development of migraine.”
 

Probing the migraine gender gap

Commenting on the research, University of Texas at Dallas neuroscientist and headache researcher Gregory Dussor, PhD, said the new study is “a very unique approach to address the question of nature versus nurture in migraine. It was well designed and used robust statistical modeling.”

As for the findings, “the conclusion that genetics do not explain sex differences in migraine risk by themselves is not surprising given how big of a role hormones in later life are likely to play in the disease and how many factors there are that can influence hormone levels,” he said.

“On the other hand, the surprising part of the findings was that the presence of a male co-twin increases risk of migraine in females. I would have expected to see the opposite, given the lower prevalence of migraine in males and the seemingly protective role that male hormones can play in migraine.”

Overall, the study adds to data implicating environment and hormones in the migraine gender gap, he said. “One thing I wonder from this study is what influence a female co-twin growing up with a male co-twin can have on migraine susceptibility. That female co-twin may end up with a very different set of childhood experiences than if she was with another female co-twin. Twins generally spend an enormous amount of time together and the same sex versus opposite sex experiences are likely to be quite different. This may have an influence on migraine later in life.”

As for the value of the study in terms of diagnosis, treatment, or prevention of migraine, Dr. Dussor said, “it’s possible it could help to identify risk factors for higher migraine susceptibility but it’s far too early to know how this could be used.”

The authors have no disclosures. Dr. Dussor disclosed an NIH-funded grant to study the role of the hormone prolactin in preclinical migraine models.