Antihistamines in Eosinophilic Esophagitis

NCT ID: NCT04248712

Last Updated: 2022-12-20

Study Results

Results available

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

1 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-07-10

Study Completion Date

2021-12-31

Brief Summary

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Researchers are assessing the safety and effectiveness of antihistamines in the treatment of eosinophilic esophagitis.

Detailed Description

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The purpose of this research is to determine if antihistamines are safe and effective for the treatment of eosinophilic esophagitis. Antihistamines are frequently used for the treatment of gastroesophageal reflux disease and allergic disorders, and we hypothesize they will be effective in the treatment of eosinophilic esophagitis as well. The two antihistamines used in this study are loratadine and famotidine.

Conditions

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Eosinophilic Esophagitis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Treatment Group

Participants receive Famotidine 40 mg tab twice daily by mouth and Loratadine 10 mg tab once daily by mouth for 12 weeks.

Group Type EXPERIMENTAL

Famotidine

Intervention Type DRUG

40 mg tab twice daily by mouth for 12 week duration

Loratadine

Intervention Type DRUG

10 mg tab once daily by mouth for 12 week duration

Placebo Group

Participants receive Famotidine placebo tablet matching Famotidine orally twice daily for 12 weeks, and Loratadine placebo tablet matching Loratadine orally daily for 12 weeks.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Contains no active ingredient

Interventions

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Famotidine

40 mg tab twice daily by mouth for 12 week duration

Intervention Type DRUG

Loratadine

10 mg tab once daily by mouth for 12 week duration

Intervention Type DRUG

Placebo

Contains no active ingredient

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Patients over the age of 18, male and female.
* Patients who carry the diagnosis of Eosinophilic Esophagitis (EoE) based on esophageal biopsies obtained within 6 months prior to enrollment (\>15 eosinophils per hpf on at least 2 esophageal levels)
* Subjects must be able to give appropriate informed consent

Exclusion Criteria

* Not willing or able to sign consent.
* Patients who have used topical or systemic corticosteroid therapy for any reason in the previous 6 weeks.
* Patients who have been treated with acid-suppressing medications (PPI or H2 receptor antagonists) in the previous 6 weeks.
* Patients on immunosuppressive or immunomodulating medications in the previous 6 weeks.
* Patients with known allergies or hypersensitivity to anti-histamines.
* Patients who have contraindications to the procurement of esophageal biopsies including patients who have known bleeding disorders, a history of bleeding diathesis, or who are currently using warfarin or clopidogrel.
* Patients who have a contraindication to the performance of an esophagogastroduodenoscopy (EGD) including previous cardiopulmonary arrest during an endoscopic procedure.
* Patients who are pregnant.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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Dawn Francis

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Dawn Francis, MD

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic

Jacksonville, Florida, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Related Links

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Other Identifiers

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19-005510

Identifier Type: -

Identifier Source: org_study_id