Functional Dyspepsia (FD) - Clinical Response to Montelukast in Children
15 mai 2019 mis à jour par: Craig A. Friesen, MD, Children's Mercy Hospital Kansas City
Predictors of Clinical Response to Montelukast in Children With Functional Dyspepsia
Duodenal eosinophilia has been associated with dyspepsia in adults and the investigators have previously described the finding of duodenal mucosal eosinophilia in 71-79% of children undergoing diagnostic endoscopy. Previous studies in children have shown positive response to montelukast with approximately 50% finding complete relief and 20-30 percent showing no response.
There are a number of factors that have the potential to contribute to the observed variability in response to montelukast. These include variability in:
- systemic drug exposure (drug absorption, biotransformation and/or elimination)
- regulation of leukotriene biosynthesis
- cysteinyl leukotriene receptors and downstream mediators
- patient disease phenotype (e.g. Functional Gastrointestinal Disorder (FGID) disease classification, psychologic profile)
In this study, the investigators propose to utilize biopsy specimens stratified by drug response to identify candidate gene expression modules that will be validated in a prospective study design. The overall goal of this program is to develop a signature of montelukast response that can be applied not only to eosinophilic gastroenteritis, but more generally to other diseases, such as asthma, where the drug is widely used with variable success.
Aperçu de l'étude
Statut
Complété
Les conditions
Type d'étude
Observationnel
Inscription (Réel)
18
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Lieux d'étude
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Missouri
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Kansas City, Missouri, États-Unis, 64108
- Children's Mercy
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Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
8 ans à 17 ans (Enfant)
Accepte les volontaires sains
Non
Sexes éligibles pour l'étude
Tout
Méthode d'échantillonnage
Échantillon non probabiliste
Population étudiée
Up to 50 subjects (allowance of 20 additional subjects for screen fails and those who will not complete Phase 3 of the study) will be recruited from a cohort of patients referred to the Abdominal Pain Clinic at Children's Mercy Hospitals and Clinics and enrolled prior to routine initial endoscopy.
La description
Inclusion Criteria:
- Ages 8 - 17 years, inclusive
- Abdominal pain of at least 8 weeks duration and fulfilling symptom- based criteria for functional dyspepsia
- Scheduled for endoscopy following failure to respond to acid-reduction therapy
- Evidence of written parental permission (consent) and subject assent
Exclusion Criteria:
- Previous treatment with montelukast
- Treatment with corticosteroids or oral cromolyn sodium in the four weeks prior to enrollment
- Prior history or clinical signs/symptoms of chronic disease requiring regular medical care (e.g., diabetes mellitus, juvenile idiopathic arthritis, cystic fibrosis or cancer)
- Exposure within the past two weeks to drugs or natural products that induce CYP2C8/9 or CYP3A4, including amprenavir, carbamazepine, lopinavir/ritonavir, nafcillin, nevirapine, oxcarbazepine, phenobarbital, phenytoin, rifampin, St. John's Wort, or that inhibit CYP2C8/9 or CYP3A4, such as ciprofloxacin, clarithromycin, erythromycin, fluconazole, fluvoxamine, grapefruit juice, paroxetine, sertraline, sulfamethoxazole, trimethoprim
- A Body Mass Index of 30 or greater
- Non-English speaking
- Those patients who will turn 18 during the duration of the study
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
|---|
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Peds/Adol Pts w/ FD - CMH GI APT clinic
Phase 1. Standard-of-Care Endoscopy to establish baseline data and immunohistochemistry studies. Additional biopsies taken for DNA and microarray analysis. If participant biopsies meet criteria (> or = 20/hpf) and no nodularity or tumors, s/he will be eligible to move to second phase. Phase 2. Standard of care treatment of 3 mg/kg ranitidine bid and 20 mg. montelukast each AM for three weeks. Based on response to global assessment score, participants will be placed in non-responder or responder group. Participants from the responder group will move to final phase of the study. Phase 3: Research endoscopy to measure response to montelukast therapy. Biopsies taken for cell density counts and immunohistochemistry studies. Additional biopsies taken for DNA and microarray analysis. |
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Identification of a signature of montelukast response using gene expression patterns in biopsy samples from clinical responders and non-responders to montelukast.
Délai: Approximately 7-8 weeks
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Identification of patients who will benefit from montelukast therapy , allowing more efficient, and possibly more effective, care.
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Approximately 7-8 weeks
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Characterization a signature of montelukast response using comparison gene expression patterns in biopsy samples obtained before and after montelukast therapy in children with a positive clinical response to the drug.
Délai: 7-8 weeks.
|
Identification and development of a signature of montelukast response applied to eosinophilic gastroenteritis, and more generally to other diseases, such as asthma, where the drug is widely used with variable success.
|
7-8 weeks.
|
Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Parrainer
Les enquêteurs
- Chercheur principal: Craig A. Friesen, MD, Children's Mercy, Division of Gastroenterlogy, Hepatology, and Nutrition
- Chercheur principal: Steven Leeder, PharmD, PhD, Children's Mercy, Division of Clinical Pharmacology and Medical Toxicology
Publications et liens utiles
La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.
Publications générales
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- Mougey EB, Feng H, Castro M, Irvin CG, Lima JJ. Absorption of montelukast is transporter mediated: a common variant of OATP2B1 is associated with reduced plasma concentrations and poor response. Pharmacogenet Genomics. 2009 Feb;19(2):129-38. doi: 10.1097/FPC.0b013e32831bd98c.
- Mougey EB, Lang JE, Wen X, Lima JJ. Effect of citrus juice and SLCO2B1 genotype on the pharmacokinetics of montelukast. J Clin Pharmacol. 2011 May;51(5):751-60. doi: 10.1177/0091270010374472. Epub 2010 Oct 25.
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- Tack J, Talley NJ, Camilleri M, Holtmann G, Hu P, Malagelada JR, Stanghellini V. Functional gastroduodenal disorders. Gastroenterology. 2006 Apr;130(5):1466-79. doi: 10.1053/j.gastro.2005.11.059. Erratum In: Gastroenterology. 2006 Jul;131(1):336.
- Schurman JV, Singh M, Singh V, Neilan N, Friesen CA. Symptoms and subtypes in pediatric functional dyspepsia: relation to mucosal inflammation and psychological functioning. J Pediatr Gastroenterol Nutr. 2010 Sep;51(3):298-303. doi: 10.1097/MPG.0b013e3181d1363c.
- Hall W, Buckley M, Crotty P, O'Morain CA. Gastric mucosal mast cells are increased in Helicobacter pylori-negative functional dyspepsia. Clin Gastroenterol Hepatol. 2003 Sep;1(5):363-9. doi: 10.1053/s1542-3565(03)00184-8.
- Friesen CA, Lin Z, Singh M, Singh V, Schurman JV, Burchell N, Cocjin JT, McCallum RW. Antral inflammatory cells, gastric emptying, and electrogastrography in pediatric functional dyspepsia. Dig Dis Sci. 2008 Oct;53(10):2634-40. doi: 10.1007/s10620-008-0207-0. Epub 2008 Mar 5.
- Friesen CA, Neilan NA, Schurman JV, Taylor DL, Kearns GL, Abdel-Rahman SM. Montelukast in the treatment of duodenal eosinophilia in children with dyspepsia: effect on eosinophil density and activation in relation to pharmacokinetics. BMC Gastroenterol. 2009 May 11;9:32. doi: 10.1186/1471-230X-9-32.
- Friesen CA, Sandridge L, Andre L, Roberts CC, Abdel-Rahman SM. Mucosal eosinophilia and response to H1/H2 antagonist and cromolyn therapy in pediatric dyspepsia. Clin Pediatr (Phila). 2006 Mar;45(2):143-7. doi: 10.1177/000992280604500205.
- Talley NJ, Walker MM, Aro P, Ronkainen J, Storskrubb T, Hindley LA, Harmsen WS, Zinsmeister AR, Agreus L. Non-ulcer dyspepsia and duodenal eosinophilia: an adult endoscopic population-based case-control study. Clin Gastroenterol Hepatol. 2007 Oct;5(10):1175-83. doi: 10.1016/j.cgh.2007.05.015. Epub 2007 Aug 7.
- Friesen CA, Andre L, Garola R, Hodge C, Roberts C. Activated duodenal mucosal eosinophils in children with dyspepsia: a pilot transmission electron microscopic study. J Pediatr Gastroenterol Nutr. 2002 Sep;35(3):329-33. doi: 10.1097/00005176-200209000-00017.
- Friesen CA, Kearns GL, Andre L, Neustrom M, Roberts CC, Abdel-Rahman SM. Clinical efficacy and pharmacokinetics of montelukast in dyspeptic children with duodenal eosinophilia. J Pediatr Gastroenterol Nutr. 2004 Mar;38(3):343-51. doi: 10.1097/00005176-200403000-00021.
- Zanger UM, Turpeinen M, Klein K, Schwab M. Functional pharmacogenetics/genomics of human cytochromes P450 involved in drug biotransformation. Anal Bioanal Chem. 2008 Nov;392(6):1093-108. doi: 10.1007/s00216-008-2291-6. Epub 2008 Aug 10.
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- Muijsers RB, Noble S. Montelukast: a review of its therapeutic potential in asthma in children 2 to 14 years of age. Paediatr Drugs. 2002;4(2):123-39. doi: 10.2165/00128072-200204020-00005.
- Neustrom MR, Friesen C. Treatment of eosinophilic gastroenteritis with montelukast. J Allergy Clin Immunol. 1999 Aug;104(2 Pt 1):506. doi: 10.1016/s0091-6749(99)70404-5. No abstract available.
- Schwartz DA, Pardi DS, Murray JA. Use of montelukast as steroid-sparing agent for recurrent eosinophilic gastroenteritis. Dig Dis Sci. 2001 Aug;46(8):1787-90. doi: 10.1023/a:1010682310928.
- Vanderhoof JA, Young RJ, Hanner TL, Kettlehut B. Montelukast: use in pediatric patients with eosinophilic gastrointestinal disease. J Pediatr Gastroenterol Nutr. 2003 Feb;36(2):293-4. doi: 10.1097/00005176-200302000-00027. No abstract available.
- Chiba M, Xu X, Nishime JA, Balani SK, Lin JH. Hepatic microsomal metabolism of montelukast, a potent leukotriene D4 receptor antagonist, in humans. Drug Metab Dispos. 1997 Sep;25(9):1022-31.
- Karonen T, Filppula A, Laitila J, Niemi M, Neuvonen PJ, Backman JT. Gemfibrozil markedly increases the plasma concentrations of montelukast: a previously unrecognized role for CYP2C8 in the metabolism of montelukast. Clin Pharmacol Ther. 2010 Aug;88(2):223-30. doi: 10.1038/clpt.2010.73. Epub 2010 Jun 30.
- Filppula AM, Laitila J, Neuvonen PJ, Backman JT. Reevaluation of the microsomal metabolism of montelukast: major contribution by CYP2C8 at clinically relevant concentrations. Drug Metab Dispos. 2011 May;39(5):904-11. doi: 10.1124/dmd.110.037689. Epub 2011 Feb 2.
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Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude
1 août 2014
Achèvement primaire (Réel)
1 août 2016
Achèvement de l'étude (Réel)
1 août 2016
Dates d'inscription aux études
Première soumission
3 septembre 2014
Première soumission répondant aux critères de contrôle qualité
5 février 2015
Première publication (Estimation)
11 février 2015
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
16 mai 2019
Dernière mise à jour soumise répondant aux critères de contrôle qualité
15 mai 2019
Dernière vérification
1 mai 2019
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 13100348
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