Clinical trial NCT05342168: Comparison of Histology From a Mesh Sponge and Traditional Esophageal Biopsies in Children and Adolescents With EoE
Official title: Comparison of Histological Results Obtained From a Mesh Sponge (CytospongeTM) and Traditional Esophageal Mucosal Biopsies in Children and Adolescents With Eosinophilic Esophagitis
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Eosinophilic Esophagitis
Keywords: cytosponge
esophageal biopsy
Histology
Lead sponsor: The Hospital for Sick Children
Sponsor class: OTHER
First posted: 2022-04-22
Enrollment: 30
Sex: ALL
Minimum age (years): 10
Maximum age (years): 18
Standard ages: CHILD
ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Intervention model description: cross sectional study comparing to tissue sampling methods
Primary purpose: DIAGNOSTIC

Brief summary: The aim of the present study is determining the accuracy, safety and tolerance of the CytospongeTM (expandable sponge within a gelatin capsule attached to a string) relative to traditional upper endoscopy and esophageal biopsies in older children and adolescents with a diagnosis of Eosinophilic Esophagitis (EoE) to follow up on treatment changes. The findings from this study could help determine whether the CytospongeTM is a more cost-effective alternative to traditional upper endoscopy for histologic follow-up in children and adolescents with EoE.

Detailed description: This is a cross-sectional study in pediatric subjects comparing histologic findings on esophageal biopsies obtained during upper GI endoscopies to histologic findings on tissue samples obtained through the use of the CytospongeTM in a group of paediatric patients with a diagnosis of EoE. Subjects will swallow the Cytosponge capsule (attached to a string) several hours prior to their scheduled endoscopy for treatment assessment. An esophageal sample will be obtained by withdrawing the expanded sponge thru the esophagus. This will be sent to pathology and fixed and stained. The subject will also undergo routine upper endoscopy under conscious sedation and follow up biopsies obtained as per routine standard of care to assess current treatment for EoE. There will be a blinded comparison between the biopsies and the Cytosponge sample by two pediatric pathologist with experience with EoE. Subjects and their caregivers will also be surveyed on their experience using the Cytosponge compared to having endoscopy.

This study has been performed in adults with Eosinophilic Esophagitis and found that the samples obtained with the Cytosponge was equivalent to the endoscopically obtained biopspes with out having to use endoscopy. Adult subjects also preferred the Sponge over having an endoscopy. The Cytosponge was shown to be safe and effected. Even larger adult trials in screening for esophageal cancer have shown the Cytosponge is safe and effective at sampling the esophagus.

Eligibility criteria: Inclusion Criteria:

* Previous histologic diagnosis of eosinophilic esophagitis (symptoms of esophageal dysfunction and at least 15 eosinophils per high-power field on esophageal biopsy and after a comprehensive assessment of non-EoE disorders that could cause or potentially contribute to esophageal eosinophilia).1
* Capable of swallowing a capsule 3 cm in length (trial with 3 cm jelly candy).
* 10 to 18 years of age.
* Male or female.
* Able to give assent or consent.
* Scheduled for an upper gastrointestinal endoscopy with biopsies on the same day to assess response to therapy and make decisions regarding further management.

Exclusion Criteria:

* Unable to swallow the capsule.
* Unable to give assent or consent.
* History of esophageal stricture on either upper gastrointestinal barium study or previous upper gastrointestinal endoscopy of food impaction that required removal.
* History of portal hypertension or esophageal varices.
* History of solid organ transplantation.
* Known bleeding diathesis.
* On anticoagulation therapy.
* Known platelet count less than normal for age.
* Pregnancy.
* Need for intubation during endoscopy.
* History of previous esophageal surgery.

Primary outcomes:
measure: Eosinophil count per high power field obtained from Cytosponge supernant and endoscopic esophageal biopsies will be compared
timeFrame: 1 week
Secondary outcomes:
measure: Likert scale (10 point) evaluating patient and caregiver satisfaction
timeFrame: immediately following the endoscopy procedure
measure: Questionairre evaluating Patient and caregiver satisfaction
timeFrame: immediately following endoscopy procedure
measure: Histology comparison of supernant obtained from sponge and esophageal pinch biopses
timeFrame: one week
Other outcomes:
Locations:
city: Toronto
country: Canada
facility: Sickkids
state: Ontario
Study officials:
affiliation: The Hospital for Sick Children
name: Margaret Marcon, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Katzka DA, Geno DM, Ravi A, Smyrk TC, Lao-Sirieix P, Miremadi A, Debiram I, O'Donovan M, Kita H, Kephart GM, Kryzer LA, Camilleri M, Alexander JA, Fitzgerald RC. Accuracy, safety, and tolerability of tissue collection by Cytosponge vs endoscopy for evaluation of eosinophilic esophagitis. Clin Gastroenterol Hepatol. 2015 Jan;13(1):77-83.e2. doi: 10.1016/j.cgh.2014.06.026. Epub 2014 Jul 3.
citation: Katzka DA, Smyrk TC, Alexander JA, Geno DM, Beitia RA, Chang AO, Shaheen NJ, Fitzgerald RC, Dellon ES. Accuracy and Safety of the Cytosponge for Assessing Histologic Activity in Eosinophilic Esophagitis: A Two-Center Study. Am J Gastroenterol. 2017 Oct;112(10):1538-1544. doi: 10.1038/ajg.2017.244. Epub 2017 Aug 15.
citation: Januszewicz W, Tan WK, Lehovsky K, Debiram-Beecham I, Nuckcheddy T, Moist S, Kadri S, di Pietro M, Boussioutas A, Shaheen NJ, Katzka DA, Dellon ES, Fitzgerald RC; BEST1 and BEST2 study investigators. Safety and Acceptability of Esophageal Cytosponge Cell Collection Device in a Pooled Analysis of Data From Individual Patients. Clin Gastroenterol Hepatol. 2019 Mar;17(4):647-656.e1. doi: 10.1016/j.cgh.2018.07.043. Epub 2018 Aug 9.
citation: Benaglia T, Sharples LD, Fitzgerald RC, Lyratzopoulos G. Health benefits and cost effectiveness of endoscopic and nonendoscopic cytosponge screening for Barrett's esophagus. Gastroenterology. 2013 Jan;144(1):62-73.e6. doi: 10.1053/j.gastro.2012.09.060. Epub 2012 Oct 3.
citation: Dellon ES, Liacouras CA, Molina-Infante J, Furuta GT, Spergel JM, Zevit N, Spechler SJ, Attwood SE, Straumann A, Aceves SS, Alexander JA, Atkins D, Arva NC, Blanchard C, Bonis PA, Book WM, Capocelli KE, Chehade M, Cheng E, Collins MH, Davis CM, Dias JA, Di Lorenzo C, Dohil R, Dupont C, Falk GW, Ferreira CT, Fox A, Gonsalves NP, Gupta SK, Katzka DA, Kinoshita Y, Menard-Katcher C, Kodroff E, Metz DC, Miehlke S, Muir AB, Mukkada VA, Murch S, Nurko S, Ohtsuka Y, Orel R, Papadopoulou A, Peterson KA, Philpott H, Putnam PE, Richter JE, Rosen R, Rothenberg ME, Schoepfer A, Scott MM, Shah N, Sheikh J, Souza RF, Strobel MJ, Talley NJ, Vaezi MF, Vandenplas Y, Vieira MC, Walker MM, Wechsler JB, Wershil BK, Wen T, Yang GY, Hirano I, Bredenoord AJ. Updated International Consensus Diagnostic Criteria for Eosinophilic Esophagitis: Proceedings of the AGREE Conference. Gastroenterology. 2018 Oct;155(4):1022-1033.e10. doi: 10.1053/j.gastro.2018.07.009. Epub 2018 Sep 6.