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Drug Profile: Galcanezumab for Prevention of Cluster Headache.

Introduction Cluster headache [CH] is a severely disabling trigeminal autonomic cephalalgia [TAC]. Approximately 1 in 1,000 adults are affected by CH. Calcitonin gene related peptide [CGRP] is an important mediator in the pathophysiology of CH. Galcanezumab is a monoclonal antibody with an affinity for the CGRP peptide, FDA approved for prevention of episodic CH. Areas covered Search words queried were 'cluster headache', 'cluster headache and CGRP', 'cluster headache and galcanezumab'. Over 99 articles in Pubmed and prescribing information for galcanezumab was reviewed. Some of the data pertaining to CH trials with fremanezumab were reviewed using clinical trials.org. Expert opinion Galcanezumab has shown benefit in decreasing weekly frequency of CH attacks across week 1 through week 3 in patients with CH; 8.7 attacks in the galcanezumab group, as compared with 5.2 in the placebo group (95% confidence interval, 0.2 to 6.7; P = 0.04). It has a favorable risk benefit ratio. The prevention of CH with CGRP inhibition represents a novel advance for a condition with a significant unmet need. The negative trial results of galcanezumab for chronic cluster headache [CCH] may be due to the refractory nature and sheds light on the critical need to investigate the underlying biology and therapeutic options.

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Headache in girls and boys growing up from age 11 to 20 years: the PIAMA birth cohort study.

The striking difference between men and women in headache prevalence is suggested to develop in adolescence. Although headaches are common and affect quality of life and daily functioning, the evidence needed to develop effective counselling and preventive approaches is still limited.Using data collected at age 11, 14, 17 and 20 years in the Dutch PIAMA birth cohort study (n=3064 with > 1 questionnaire), we assessed headache prevalence and incidence in girls and boys and explored associations with early life, environmental, lifestyle, health and psychosocial factors. Associations were analysed longitudinally with generalized linear mixed models and discrete time hazard models.From age 11 to 20, the prevalence of headache increased from 9.4% to 19.8% in girls and hardly changed in boys (7.6% to 6.1%). Headache commonly co-occurred with other unfavorable health and psychosocial conditions. 88% of the girls and 76% of boys with headache also reported at least one of the following at age 17: sleeping problems, asthma, hay fever, musculoskeletal complaints, fatigue, low mental health or worrying. Results suggest higher headache prevalence in adolescents following lower educational tracks, in those who skip breakfast >2 days per week and in boys exposed to tobacco smoke in infancy. In girls, sleeping problems and musculoskeletal complaints were associated with higher odds of incident headache and residential greenness with lower odds of incident headache.The high prevalence and strong female predominance of headache, already in adolescence and often with comorbidities deserve recognition by professionals in (preventive) health care settings and schools.

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Responses of spinal trigeminal neurons to noxious stimulation of paranasal cavities – a rat model of rhinosinusitis headache.

The pathophysiology of headaches associated with rhinosinusitis is poorly known. Since the generation of headaches is thought to be linked to the activation of intracranial afferents, we used an animal model to characterise spinal trigeminal neurons with nociceptive input from the dura mater and paranasal sinuses.

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Sex differences in prevalence of migraine trigger factors: A cross-sectional study.

To examine the effect of sex on migraine trigger factors.

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Real-life treatment of cluster headache in a tertiary headache center – results from the Danish Cluster Headache Survey.

Pharmacological treatment of cluster headache constitutes the core of clinical management, but evidence is sparse. We aimed to generate insight in the existing treatment and identify associations between clinical features and treatment response.

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Reversion from chronic migraine to episodic migraine: A new outcome measure.

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Atrial fibrillation and migraine with aura in young adults with ischemic stroke.

Migraine is associated with an increased risk of ischemic stroke. The associations are stronger in migraine with aura than in migraine without aura, in women than in men, and in younger subjects. However, the mechanisms by which migraine might increase the risk of ischemic stroke are debated.

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Muscle endurance training of the neck triggers migraine attacks.

Most migraine patients report neck pain as part of their migraine symptomatology, but it is unknown whether triggering neck pain would induce migraine attacks. Our aim was to assess the occurrence of headache and/or neck pain after an endurance test of the neck muscles among migraineurs and controls.

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Combined onabotulinumtoxinA/atogepant treatment blocks activation/sensitization of high-threshold and wide-dynamic range neurons.

OnabotulinumtoxinA and agents that block calcitonin gene‒receptor peptide action have both been found to have anti-migraine effects, but they inhibit different populations of meningeal nociceptors. We therefore tested the effects of combined treatment with onabotulinumtoxinA and the calcitonin gene‒receptor peptide antagonist atogepant on activation/sensitization of trigeminovascular neurons by cortical spreading depression.

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De novo protein synthesis is necessary for priming in preclinical models of migraine.

Migraine attacks are often triggered by normally innocuous stimuli, suggesting that sensitization within the nervous system is present. One mechanism that may contribute to neuronal sensitization in this context is translation regulation of new protein synthesis. The goal of this study was to determine whether protein synthesis contributes to behavioral responses and priming in preclinical models of migraine.

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