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EosinophiliaNCT02360696

Functional Dyspepsia (FD) - Clinical Response to Montelukast in Children

An observational study of Eosinophilia and Dyspepsia, run by Children's Mercy Hospital Kansas City at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 8 to 17 years
Conditions the study is for
Eosinophilia, Dyspepsia
How many people
18 participants
Where
1 siteUnited States
Study dates
Aug 2014to Aug 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 8 to 17 years
  • All sexes
  • No healthy volunteers
  • Child

Study population: 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.

Who may be able to join

  • 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

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Children's Mercy

    Kansas City, Missouri, 64108

Other trials in United States

About this study

Official title: 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:

Read more
  1. systemic drug exposure (drug absorption, biotransformation and/or elimination)
  2. regulation of leukotriene biosynthesis
  3. cysteinyl leukotriene receptors and downstream mediators
  4. 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.

Keywords
Duodenal Eosinophilia, Functional Dyspepsia, Mucosal Eosinophilia
Medical subject headings
Eosinophilia, Dyspepsia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT02360696
Study groupRoleWhat they receive
Peds/Adol Pts w/ FD - CMH GI APT clinicPhase 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.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Identification of a signature of montelukast response using gene expression patterns in biopsy samples from clinical responders and non-responders to montelukast.

    Identification of patients who will benefit from montelukast therapy , allowing more efficient, and possibly more effective, care.

    Measured: Approximately 7-8 weeks

Secondary outcomes (1)
  1. 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.

    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.

    Measured: 7-8 weeks.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Feb 2015 (estimated)
  2. Study startAug 2014
  3. Primary completionAug 2016
  4. Study completionAug 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02360696
Sponsor's protocol ID
13100348
Status last verified
May 2019
First submitted
3 Sep 2014
Last updated
16 May 2019
Results posted
No
Data monitoring committee
No

Publications

  • 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.

    PubMed 17686660
  • 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.

    PubMed 19432972
  • 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.

    PubMed 16528434
  • Erjefalt JS, Greiff L, Andersson M, Adelroth E, Jeffery PK, Persson CG. Degranulation patterns of eosinophil granulocytes as determinants of eosinophil driven disease. Thorax. 2001 May;56(5):341-4. doi: 10.1136/thorax.56.5.341.

    PubMed 11312400
  • 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.

    PubMed 12352522
  • 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.

    PubMed 15017654
  • 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.

    PubMed 18320315
  • 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.

    PubMed 11888359
  • 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.

    PubMed 10452782
  • 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.

    PubMed 11508684
  • 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.

    PubMed 12548071
  • 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.

    PubMed 15076638
  • 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.

    PubMed 9311616
  • 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.

    PubMed 20592724
  • 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.

    PubMed 21289076

Questions about this trial

What is this clinical trial studying?

An observational study of Eosinophilia and Dyspepsia, run by Children's Mercy Hospital Kansas City at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 May 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Identification of a signature of montelukast response using gene expression patterns in biopsy samples from clinical responders and non-responders to montelukast. (time frame: Approximately 7-8 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02360696, which also lists 41 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 May 2019.

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