Proton Pump Inhibitor (PPI) Response in Eosinophilic Esophagitis Assessed by Transnasal Endoscopy (TNE)

Eosinophilic Esophagitis Clinical Trial

Official title:

Proton Pump Inhibitor (PPI) Response in Eosinophilic Esophagitis Assessed by Transnasal Endoscopy (TNE)

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04149470
• Other study ID #: 19-1119
• Status: Recruiting
• Phase: Phase 4
• Start date: October 7, 2020
• Est. completion date: August 2024

Study information

• Verified date: December 2023
• Source: University of Colorado, Denver
• Contact: Rachel Andrews
• Phone: 720-777-1994
• Email: rachel.andrews[@]childrenscolorado.org
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study will enroll participants who have been diagnosed with Eosinophilic Esophagitis (EoE). Upon study enrollment, the participant will begin a proton pump inhibitor (PPI), Omeprazole 20mg twice daily. After taking Omeprazole for four weeks, the participant will have a Transnasal Endoscopy, and biopsies will be taken to determine the histological change. If the biopsies are abnormal, the participant continues Omeprazole and will undergo another endoscopy at eight weeks. The study aims to determine the percentage of children with Eosinophilic Esophagitis who improve with PPI use and to determine the length of time and effectiveness of PPI therapy in the management of EoE. The investigators hypothesize that following the initiation of PPI for treatment of Eosinophilic Esophagitis, biopsies obtained will show decreasing eosinophil counts at four weeks, which is sooner than the previously reported eight-week period.

Description:

This study aims to learn more about the subset of children with Eosinophilic Esophagitis (EoE) who are on treatment with a proton pump inhibitor (PPI). EoE is an increasingly common allergic condition of the esophagus for which we have limited treatment options. This study will be helpful in evaluating the minimal time frame required for histological improvement with the use of high dose PPI. The study will enroll participants who have been diagnosed with Eosinophilic Esophagitis (EoE) and are recommended by their physician to begin PPI treatment with Omeprazole 20 mg twice daily. After taking Omeprazole for four weeks, the participant will undergo an unsedated Transnasal Endoscopy (TNE) in the outpatient clinic at Children's Hospital Colorado. TNE is a test in which the doctor inserts a skinny bendable tube with a camera through the nose to look directly into the esophagus (the tube connecting the mouth to the stomach when you swallow) and is an alternative method to assess esophageal mucosa without requiring general anesthesia. Biopsies will be collected during the TNE to determine if there is histological change. If the biopsies are normal, the participant will complete the study. If biopsies are abnormal, and EoE is still active, the participant will continue the Omeprazole and undergo the standard of care endoscopy at eight weeks. The participant will choose the type of endoscopy- unsedated TNE or esophagogastroduodenoscopy (EGD) under anesthesia. Participants will also complete surveys during study enrollment about medication compliance, Eosinophilic Esophagitis symptoms, anxiety, TNE experience, and undergo a physical exam. The investigators hypothesize that following the initiation of PPI for treatment of Eosinophilic Esophagitis, biopsies obtained will show decreasing eosinophil counts at four weeks, which is sooner than the previously reported eight-week period. Results from this study will be generalizable to the pediatric EoE population and the knowledge gained will provide key preliminary data to support clinical recommendations for pediatric EoE patients.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 90
• Est. completion date: August 2024
• Est. primary completion date: August 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 8 Years to 22 Years

Eligibility

Inclusion Criteria:

• Provide signed and dated informed consent form
• Male or female, ages 8-22
• Current diagnosis of Eosinophilic Esophagitis (= 15 eos/HPF) within the last 6 months
• Able to swallow pills or open capsule to take medication with apple sauce
• Weight >20kg
• Willing to undergo unsedated transnasal endoscopy (TNE)

Exclusion Criteria:

• Inability or unwillingness of participant to give written informed consent or comply with study protocol.
• Have a known bleeding disorder
• Current topical esophageal corticosteroid or systemic steroid treatment within past 8 weeks
• No therapy with H2 therapy within the past 16 weeks
• Planned or anticipated change in the diet during the study duration.
• Planned or anticipated change in other corticosteroid medications
• Uncontrolled cough, rhinorrhea, rhinitis obstructing nasal passages, GI illness or determination of significant illness at screening
• Pregnancy, breast feeding or plans to become pregnant
• Use of investigational drug within last 16 weeks
• Allergy to any medications used for procedures
• Allergy to PPI
• Past or current medical problems or findings from physical exam or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks from participation in the study, may interfere with participant's ability to comply with study requirements, or that may impact the quality or interpretation of the data obtained from the study

Related Conditions & MeSH terms

• Eosinophilic Esophagitis
• Esophagitis

Intervention

Drug:
• Omeprazole 20mg BID
High dose PPI therapy (Omeprazole 20mg twice daily)

Locations

Country	Name	City	State
United States	Children's Hospital Colorado	Aurora	Colorado

Sponsors (2)

Lead Sponsor	Collaborator
University of Colorado, Denver	Children's Hospital Colorado

Country where clinical trial is conducted

United States, 

References & Publications (12)

Dellon ES, Gonsalves N, Hirano I, Furuta GT, Liacouras CA, Katzka DA; American College of Gastroenterology. ACG clinical guideline: Evidenced based approach to the diagnosis and management of esophageal eosinophilia and eosinophilic esophagitis (EoE). Am — View 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, D — View Citation

Dumortier J, Ponchon T, Scoazec JY, Moulinier B, Zarka F, Paliard P, Lambert R. Prospective evaluation of transnasal esophagogastroduodenoscopy: feasibility and study on performance and tolerance. Gastrointest Endosc. 1999 Mar;49(3 Pt 1):285-91. doi: 10.1 — View Citation

Friedlander JA, DeBoer EM, Soden JS, Furuta GT, Menard-Katcher CD, Atkins D, Fleischer DM, Kramer RE, Deterding RR, Capocelli KE, Prager JD. Unsedated transnasal esophagoscopy for monitoring therapy in pediatric eosinophilic esophagitis. Gastrointest Endo — View Citation

Furuta GT, Liacouras CA, Collins MH, Gupta SK, Justinich C, Putnam PE, Bonis P, Hassall E, Straumann A, Rothenberg ME; First International Gastrointestinal Eosinophil Research Symposium (FIGERS) Subcommittees. Eosinophilic esophagitis in children and adul — View Citation

Gutierrez-Junquera C, Fernandez-Fernandez S, Cilleruelo ML, Rayo A, Echeverria L, Quevedo S, Bracamonte T, Roman E. High Prevalence of Response to Proton-pump Inhibitor Treatment in Children With Esophageal Eosinophilia. J Pediatr Gastroenterol Nutr. 2016 — View Citation

Lucendo AJ, Arias A, Molina-Infante J. Efficacy of Proton Pump Inhibitor Drugs for Inducing Clinical and Histologic Remission in Patients With Symptomatic Esophageal Eosinophilia: A Systematic Review and Meta-Analysis. Clin Gastroenterol Hepatol. 2016 Jan — View Citation

Molina-Infante J, Bredenoord AJ, Cheng E, Dellon ES, Furuta GT, Gupta SK, Hirano I, Katzka DA, Moawad FJ, Rothenberg ME, Schoepfer A, Spechler SJ, Wen T, Straumann A, Lucendo AJ; PPI-REE Task Force of the European Society of Eosinophilic Oesophagitis (EUR — View Citation

Molina-Infante J, Ferrando-Lamana L, Ripoll C, Hernandez-Alonso M, Mateos JM, Fernandez-Bermejo M, Duenas C, Fernandez-Gonzalez N, Quintana EM, Gonzalez-Nunez MA. Esophageal eosinophilic infiltration responds to proton pump inhibition in most adults. Clin — View Citation

Nguyen N, Lavery WJ, Capocelli KE, Smith C, DeBoer EM, Deterding R, Prager JD, Leinwand K, Kobak GE, Kramer RE, Menard-Katcher C, Furuta GT, Atkins D, Fleischer D, Greenhawt M, Friedlander JA. Transnasal Endoscopy in Unsedated Children With Eosinophilic E — View Citation

Philpott H, Nandurkar S, Royce SG, Gibson PR. Ultrathin unsedated transnasal gastroscopy in monitoring eosinophilic esophagitis. J Gastroenterol Hepatol. 2016 Mar;31(3):590-4. doi: 10.1111/jgh.13173. — View Citation

Yagi J, Adachi K, Arima N, Tanaka S, Ose T, Azumi T, Sasaki H, Sato M, Kinoshita Y. A prospective randomized comparative study on the safety and tolerability of transnasal esophagogastroduodenoscopy. Endoscopy. 2005 Dec;37(12):1226-31. doi: 10.1055/s-2005 — View Citation

* Note: There are 12 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Histological Response at baseline	The histological response will be based on pathologist's review of esophageal biopsies for pediatric participants with Eosinophilic Esophagitis (EoE). EoE diagnosis is identified if there are = 15 eosinophils per high power field (hpf) in the esophagus.	baseline
Primary	Change in Histological Response Rate at four weeks	The histological response will be based on pathologist's review of esophageal biopsies for pediatric participants with Eosinophilic Esophagitis (EoE) who are prescribed a high dose proton pump inhibitor, Omeprazole 20 mg twice daily. Biopsies will be evaluated using the EoE histological scoring system. Response will be defined as the peak eosinophil count of < 15 eosinophils per high power field and normal will be defined at 0 eosinophils per high power field.	4 weeks
Primary	Change in Histological Response Rate at eight weeks	The histological response will be based on pathologist's review of esophageal biopsies for pediatric participants with Eosinophilic Esophagitis (EoE) who are prescribed a high dose proton pump inhibitor, Omeprazole 20 mg twice daily. Biopsies will be evaluated using the EoE histological scoring system. Response will be defined as the peak eosinophil count of < 15 eosinophils per high power field and normal will be defined at 0 eosinophils per high power field.	8 weeks
Secondary	PEESS (Pediatric Eosinophilic Esophagitis Symptom Severity Module) scores at enrollment	The PEESS (Pediatric Eosinophilic Esophagitis (EoE) Symptom Scores) validated assessment tool will be completed by participant and parent at the enrollment visit. PEESS is a metric that seeks to capture EoE specific symptoms directly from children and their parents. Scores range from 0 (never) to 4 (almost always) and each question measures frequency and severity of EoE symptoms in the past month.	At enrollment
Secondary	PEESS (Pediatric Eosinophilic Esophagitis Symptom Severity Module) scores at four weeks	The PEESS (Pediatric Eosinophilic Esophagitis (EoE) Symptom Scores) validated assessment tool will be completed by participant and parent after four weeks using Omeprazole 20mg twice daily. PEESS is a metric that seeks to capture EoE specific symptoms directly from children and their parents. Scores range from 0 (never) to 4 (almost always) and each question measures frequency and severity of EoE symptoms in the past month.	4 weeks
Secondary	PEESS (Pediatric Eosinophilic Esophagitis Symptom Severity Module) scores at eight weeks	The PEESS (Pediatric Eosinophilic Esophagitis (EoE) Symptom Scores) validated assessment tool will be completed by participant and parent after eight weeks using Omeprazole 20mg twice daily. PEESS is a metric that seeks to capture EoE specific symptoms directly from children and their parents. Scores range from 0 (never) to 4 (almost always) and each question measures frequency and severity of EoE symptoms in the past month.	8 weeks
Secondary	Eosinophilic Esophagitis Histology Scoring System (HSS) scores at enrollment	The EoE HSS provides a method to objectively assess histology change in esophageal biopsies beyond eosinophil count. The HSS evaluates eight features: eosinophil density, basal zone hyperplasia, eosinophil abscesses, eosinophil surface layering, dilated intercellular spaces (DIS), surface epithelial alteration, dyskeratotic epithelial cells, and lamina propria fibrosis. The study pathologist will review the historical esophageal biopsies using the HSS.	At enrollment
Secondary	Eosinophilic Esophagitis Histology Scoring System (HSS) scores at four weeks	The EoE HSS provides a method to objectively assess histology change in esophageal biopsies beyond eosinophil count. The HSS evaluates eight features: eosinophil density, basal zone hyperplasia, eosinophil abscesses, eosinophil surface layering, dilated intercellular spaces (DIS), surface epithelial alteration, dyskeratotic epithelial cells, and lamina propria fibrosis. The study pathologist will review the participant's esophageal biopsies collected after four weeks of Omeprazole 20mg twice daily using the HSS.	4 weeks
Secondary	Eosinophilic Esophagitis Histology Scoring System (HSS) scores at eight weeks	The EoE HSS provides a method to objectively assess histology change in esophageal biopsies beyond eosinophil count. The HSS evaluates eight features: eosinophil density, basal zone hyperplasia, eosinophil abscesses, eosinophil surface layering, dilated intercellular spaces (DIS), surface epithelial alteration, dyskeratotic epithelial cells, and lamina propria fibrosis. The study pathologist will review the participant's esophageal biopsies collected after eight weeks of Omeprazole 20mg twice daily using the HSS.	8 weeks