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Harris L, L'Italien G, O'Connell T, Hasan Z, Hutchinson S, Lucas S. A Framework for Estimating the Eligible Patient Population for New Migraine Acute Therapies in the United States. Adv Ther 2021; 38:5087-5097. [PMID: 34057676 PMCID: PMC8478730 DOI: 10.1007/s12325-021-01781-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/07/2021] [Indexed: 01/05/2023]
Abstract
Introduction Migraine is associated with considerable disability for patients not adequately managed with current standards of care. New acute therapies may offer relief for this population of patients; however, population size and associated potential costs of new therapies are unclear. In this study, a conceptual framework was developed to estimate anticipated use of new acute therapies. Methods Targeted literature review (TLR) was conducted to identify factors affecting access to migraine-specific acute therapies, and characteristics of individuals who would be eligible for new acute therapies. Findings from the TLR were combined to create a framework for estimating the size of the eligible patient population. This framework was used to calculate two estimates of the eligible patient population by applying parameters (i) identified in the TLR and (ii) from a recent budget-impact analysis (BIA). Results The primary factors affecting access to migraine-specific acute therapies identified in the TLR were consulting a healthcare professional for headache, receiving a migraine diagnosis, and receiving a prescription for migraine-specific treatment. Characteristics of individuals likely to use new acute therapies reflected in the TLR were contraindication to triptans, or failure to respond to/tolerate at least two oral triptans. Application of the framework suggested that 15–25% of individuals with migraine would be eligible for new acute therapies. Conclusion A limited number of patients currently use migraine-specific acute therapies. Among such patients, a significant proportion do not have adequate symptom control. Accordingly, a minority of individuals with migraine may be expected to use new acute therapies. The framework developed in this study is intended to facilitate estimating the eligible patient population in assessments of costs of new acute therapies. Such assessments should also consider recommendations that patients have access to multiple types of acute therapies, which may yield savings from reduced medication-overuse headache (MOH), progression to chronic migraine, and urgent-care costs. Supplementary Information The online version contains supplementary material available at 10.1007/s12325-021-01781-z.
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Affiliation(s)
| | | | | | | | | | - Sylvia Lucas
- Department of Neurology, University of Washington Medical Center, Seattle, WA, USA
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Tfelt-Hansen P. Pharmacological strategies to treat attacks of episodic migraine in adults. Expert Opin Pharmacother 2020; 22:305-316. [PMID: 33003955 DOI: 10.1080/14656566.2020.1828347] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Migraine patients prioritize early complete relief of headache and associated symptoms, sustained freedom of pain, and good tolerability. One major obstacle for the successful use of drug treatment of migraine attack is that the speed of action of triptans, 5-HT1B/1D receptor agonists, is delayed. AREAS COVERED In this review, the author discusses the following features of acute migraine drugs: pharmacology; pharmacokinetics, and absorption of drugs during migraine attacks. Next, dose-response curves for effect; and the delayed onset of action is reviewed. In the more clinical part of the review, the following items are discussed: overall clinical judgments; comparison of triptans; comparison of triptans with NSAIDs; early intervention with triptans; medication-overuse headache; comments on the effect of gepants; and the general principle of acute migraine therapy. EXPERT OPINION The delay in the onset of effect of acute migraine drugs is likely due to a complex antimigraine system involving more than one site of action. Investigations into the mechanisms of the delay should have a high priority, both in studies with animals, migraine models, and in migraine patients during attacks. Non-oral administration of antimigraine drugs resulting in early absorption of drugs should be developed as they possibly also can increase Emax.
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Affiliation(s)
- Peer Tfelt-Hansen
- From Danish Headache Center, Department of Neurology, Rigshospital Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen , Glostrup, Denmark
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Salem LH, El-Feky GS, Fahmy RH, El Gazayerly ON, Abdelbary A. Coated Lipidic Nanoparticles as a New Strategy for Enhancing Nose-to-Brain Delivery of a Hydrophilic Drug Molecule. J Pharm Sci 2020; 109:2237-2251. [DOI: 10.1016/j.xphs.2020.04.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/01/2020] [Accepted: 04/10/2020] [Indexed: 10/24/2022]
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Gasparini CF, Smith RA, Griffiths LR. Genetic and biochemical changes of the serotonergic system in migraine pathobiology. J Headache Pain 2017; 18:20. [PMID: 28194570 PMCID: PMC5307402 DOI: 10.1186/s10194-016-0711-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 12/09/2016] [Indexed: 12/23/2022] Open
Abstract
Migraine is a brain disorder characterized by a piercing headache which affects one side of the head, located mainly at the temples and in the area around the eye. Migraine imparts substantial suffering to the family in addition to the sufferer, particularly as it affects three times more women than men and is most prevalent between the ages of 25 and 45, the years of child rearing. Migraine typically occurs in individuals with a genetic predisposition and is aggravated by specific environmental triggers. Attempts to study the biochemistry of migraine began as early as the 1960s and were primarily directed at serotonin metabolism after an increase of 5-hydroxyindoleacetic acid (5-HIAA), the main metabolite of serotonin was observed in urine of migraineurs. Genetic and biochemical studies have primarily focused on the neurotransmitter serotonin, considering receptor binding, transport and synthesis of serotonin and have investigated serotonergic mediators including enzymes, receptors as well as intermediary metabolites. These studies have been mainly assayed in blood, CSF and urine as the most accessible fluids. More recently PET imaging technology integrated with a metabolomics and a systems biology platform are being applied to study serotonergic biology. The general trend observed is that migraine patients have alterations of neurotransmitter metabolism detected in biological fluids with different biochemistry from controls, however the interpretation of the biological significance of these peripheral changes is unresolved. In this review we present the biology of the serotonergic system and metabolic routes for serotonin and discuss results of biochemical studies with regard to alterations in serotonin in brain, cerebrospinal fluid, saliva, platelets, plasma and urine of migraine patients.
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Affiliation(s)
- Claudia Francesca Gasparini
- Menzies Health Institute Queensland, Griffith University Gold Coast, Parklands Drive, Southport, QLD, 4222, Australia
| | - Robert Anthony Smith
- Genomics Research Centre, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology, Musk Ave, Kelvin Grove, QLD, 4059, Australia
| | - Lyn Robyn Griffiths
- Genomics Research Centre, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology, Musk Ave, Kelvin Grove, QLD, 4059, Australia.
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Cargnin S, Magnani F, Viana M, Tassorelli C, Mittino D, Cantello R, Sances G, Nappi G, Canonico PL, Genazzani AA, Raffaeli W, Terrazzino S. An Opposite-Direction Modulation of the COMT Val158Met Polymorphism on the Clinical Response to Intrathecal Morphine and Triptans. THE JOURNAL OF PAIN 2013; 14:1097-106. [DOI: 10.1016/j.jpain.2013.04.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 03/05/2013] [Accepted: 04/13/2013] [Indexed: 12/19/2022]
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6
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Viana M, Genazzani AA, Terrazzino S, Nappi G, Goadsby PJ. Triptan nonresponders: do they exist and who are they? Cephalalgia 2013; 33:891-6. [PMID: 23564209 DOI: 10.1177/0333102413480756] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Triptans represent the best treatment option for most migraine attacks, although this is not as well studied as it might be in controlled trials. Their efficacy and tolerability vary, both between agents, and from patient to patient, with about 30%-40% of patients not responding adequately to therapy. As yet unexplained, the failure of one triptan does not predict failure with another, and therefore triptan nonresponders cannot be defined as individuals who have failed a single triptan. Five clinical studies provide evidence that switching from a triptan that is ineffective to a second one can result in effective treatment in a proportion of patients. Systematic studies investigating whether there are patients who do not respond to all triptans in all formulations are lacking. METHODS Here we discuss the importance of identifying triptan nonresponders, the literature supporting their existence, and the issues to be resolved to design trials to investigate this. CONCLUSION So far, no scientific data about the presence of a triptan nonresponder population are available. We propose a pragmatic study design to assess the existence of this subpopulation, recognizing the complexity of the question and the likelihood that more than one issue is at play in nonresponders.
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Affiliation(s)
- Michele Viana
- Headache Science Center, C. Mondino National Institute of Neurology Foundation, IRCCS, Pavia, Italy.
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Sarchielli P, Granella F, Prudenzano MP, Pini LA, Guidetti V, Bono G, Pinessi L, Alessandri M, Antonaci F, Fanciullacci M, Ferrari A, Guazzelli M, Nappi G, Sances G, Sandrini G, Savi L, Tassorelli C, Zanchin G. Italian guidelines for primary headaches: 2012 revised version. J Headache Pain 2012; 13 Suppl 2:S31-70. [PMID: 22581120 PMCID: PMC3350623 DOI: 10.1007/s10194-012-0437-6] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The first edition of the Italian diagnostic and therapeutic guidelines for primary headaches in adults was published in J Headache Pain 2(Suppl. 1):105-190 (2001). Ten years later, the guideline committee of the Italian Society for the Study of Headaches (SISC) decided it was time to update therapeutic guidelines. A literature search was carried out on Medline database, and all articles on primary headache treatments in English, German, French and Italian published from February 2001 to December 2011 were taken into account. Only randomized controlled trials (RCT) and meta-analyses were analysed for each drug. If RCT were lacking, open studies and case series were also examined. According to the previous edition, four levels of recommendation were defined on the basis of levels of evidence, scientific strength of evidence and clinical effectiveness. Recommendations for symptomatic and prophylactic treatment of migraine and cluster headache were therefore revised with respect to previous 2001 guidelines and a section was dedicated to non-pharmacological treatment. This article reports a summary of the revised version published in extenso in an Italian version.
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Affiliation(s)
- Paola Sarchielli
- Headache Centre, Neurologic Clinic, University of Perugia, Perugia, Italy.
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Bussone G, Allais G, Castagnoli Gabellari I, Benedetto C. Almotriptan for menstrually related migraine. Expert Opin Pharmacother 2011; 12:1933-43. [PMID: 21726161 DOI: 10.1517/14656566.2011.594794] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Approximately 50% of migrainous women associate their headache temporally to menses. Menstrually related migraine (MRM) is a disabling form of migraine characterized by attacks that are generally longer, more severe and less drug-responsive than nonmenstrual ones. Since MRM may be difficult to treat, it is important to find an appropriate treatment option for women suffering from this condition. AREAS COVERED This paper provides an overview of the clinical features of MRM, with special attention on the use of almotriptan for its treatment. Four studies on almotriptan in the treatment of MRM are present in the medical literature. Two report post hoc analyses of data derived from larger studies on the use of almotriptan for migraine treatment. One reports the results from a study specifically dedicated to MRM and one illustrates a subanalysis on the accompanying symptomatology. EXPERT OPINION Evidence demonstrates that almotriptan is a molecule with a high efficacy in the treatment of MRM and with an excellent tolerability profile when compared with other triptans. Moreover, it shows a proven ability to control migraine-associated symptoms. All these qualities play a decidedly positive role in making almotriptan a product of choice for the treatment of MRM.
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Abstract
Migraine is a chronic, recurrent, disabling condition that affects millions of people in the US and worldwide. Proper acute care treatment for migraineurs is essential for a full return of function and productivity. Triptans are serotonin (5-HT)(1B/1D) receptor agonists that are generally effective, well tolerated and safe. Seven triptans are available worldwide, although not all are available in every country, with multiple routes of administration, giving doctors and patients a wide choice. Despite the similarities of the available triptans, pharmacological heterogeneity offers slightly different efficacy profiles. All triptans are superior to placebo in clinical trials, and some, such as rizatriptan 10 mg, eletriptan 40 mg, almotriptan 12.5 mg, and zolmitriptan 2.5 and 5 mg are very similar to each other and to the prototype triptan, sumatriptan 100 mg. These five are known as the fast-acting triptans. Increased dosing can offer increased efficacy but may confer a higher risk of adverse events, which are usually mild to moderate and transient in nature. This paper critically reviews efficacy, safety and tolerability for the different formulations of sumatriptan, zolmitriptan, rizatriptan, naratriptan, almotriptan, eletriptan and frovatriptan.
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Affiliation(s)
- Mollie M Johnston
- Department of Neurology, The David Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA.
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Terrazzino S, Viana M, Floriddia E, Monaco F, Mittino D, Sances G, Tassorelli C, Nappi G, Rinaldi M, Canonico PL, Genazzani AA. The serotonin transporter gene polymorphism STin2 VNTR confers an increased risk of inconsistent response to triptans in migraine patients. Eur J Pharmacol 2010; 641:82-7. [DOI: 10.1016/j.ejphar.2010.04.049] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2009] [Revised: 04/07/2010] [Accepted: 04/25/2010] [Indexed: 12/16/2022]
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Katić BJ, Krause SJ, Tepper SJ, Hu HX, Bigal ME. Adherence to Acute Migraine Medication: What Does It Mean, Why Does It Matter? Headache 2010; 50:117-29. [PMID: 19817884 DOI: 10.1111/j.1526-4610.2009.01535.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Bozena J Katić
- Merck & Co., Inc, Global Outcomes Research, Whitehouse Station, NJ, USA
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