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EP-104GI

Phase 1

Eosinophilic Esophagitis | Small molecule | Gastrointestinal |Eupraxia Pharmaceuticals Inc.|Last Updated: Mar 19, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment117

FDA Designations

No designations recorded

Clinical trial landscape

EP-104GI · 1 trial · 1 indication

Phase 1 1
NCT05608681A Trial to Evaluate EP-104GI in Adults With Eosinophilic Esophagitis (EoE).Eosinophilic Esophagitis
RECRUITING117 Analytics
PHASE1RECRUITING
A Trial to Evaluate EP-104GI in Adults With Eosinophilic Esophagitis (EoE).
Eosinophilic EsophagitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Dose Escalation- Incidence of treatment emergent adverse events (TEAEs)
52 weeks

TEAEs will be summarized by dose/cohort

Dose Escalation- Severity of treatment emergent adverse events (TEAEs)
52 weeks

TEAEs will be summarized by dose/cohort and severity (mild, moderate, severe).

Dose Escalation- Change from baseline in morning serum cortisol levels
52 weeks

Cortisol will be will be summarized by dose/cohort and over time and compared to pre-dose values. A prolonged and clinically significant reduction in cortisol may indicate adrenal insufficiency.

Dose Escalation- Plasma concentrations of fluticasone propionate
108 weeks

Plasma concentrations of fluticasone propionate over time will be used to calculate PK parameters for each dose/cohort.

Dose Escalation- Change from baseline in physical examination results, BMI and weight change.
12 weeks

Physical examination results, BMI and weight will be summarized by dose/cohort and over time and compared to pre-dose values.

Randomised Dose Optimization- Change from baseline in EoEHSS grade and stage scored in 3 regions of the esophagus within the injection area (proximal, mid, distal)
24 weeks

The EoEHSS scores the stage and grade of 8 histologic items: eosinophil inflammation, basal zone hyperplasia, dilated intercellular spaces, eosinophil abscesses, surface layering, surface epithelial alteration, dyskeratotic epithelial cells and lamina propria fibrosis), on separate 4-point Likert scales. A composite EoEHSS grade and stage scores are calculated by summing the individual grade and stage items and dividing by the maximum score for evaluated items (range, 0-1). A lower score indicates improvement.

Secondary Endpoints

Dose Escalation- Peak eosinophil count (PEC)
36 weeks
Dose Escalation- Change from baseline in the Straumann Dysphagia Index (SDI) score
52 weeks
Dose Escalation- Change from baseline in dysphagia measured on an 11 point Likert scale
52 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
EP-104GI 4 mgEXPERIMENTAL4 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI 8 mgEXPERIMENTAL8 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI 20 mgEXPERIMENTAL8 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI 30 mgEXPERIMENTAL12 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI 48 mgEXPERIMENTAL12 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI 64 mgEXPERIMENTAL16 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI 80 mgEXPERIMENTAL20 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI 96 mgEXPERIMENTAL16 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI 120 mgEXPERIMENTAL20 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI Dose A or matching vehicle controlPLACEBO_COMPARATOR20 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI 160 mgEXPERIMENTAL20 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.
EP-104GI Dose B or matching vehicle controlPLACEBO_COMPARATOR20 submucosal injections of EP-104GI administered during an EGD procedure at the Baseline/Dosing visit.

Interventions

NameTypeDescription
EP-104GIDRUGExtended-release fluticasone propionate \[FP\] for injectable suspension for gastrointestinal administration, Powder suspended in vehicle
Matching vehicle controlOTHERA sterile liquid containing sterile water and excipients necessary to prepare a uniform suspension of the powder.
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites23

Inclusion Criteria: * Symptomatic EoE; * For women of childbearing potential, a negative pregnancy test and willing to use a highly effective method of birth control until end of study; * Willing and able to adhere to study-related procedures and visit schedule; * Willing and able to provide inform...

Countries:AustraliaCanadaNetherlandsNew ZealandSwitzerlandUnited Kingdom
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Frequently asked questions about EP-104GI

What is EP-104GI used for?

EP-104GI is an investigational small molecule being developed for the treatment of eosinophilic esophagitis (EoE), a chronic allergic inflammatory condition of the esophagus. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities.

What does EP-104GI target?

The specific molecular target of EP-104GI has not been disclosed. It is a small molecule therapeutic being evaluated for its ability to treat eosinophilic esophagitis, but the precise mechanism of action is not publicly available at this time.

Who makes EP-104GI?

EP-104GI is being developed by Eupraxia Pharmaceuticals Inc., a biopharmaceutical company traded on the stock exchange under the ticker symbol EPRX. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with eosinophilic esophagitis.

What phase is EP-104GI in?

EP-104GI is currently in Phase 1 clinical development. It is an investigational drug, meaning it has not yet received regulatory approval and is still being studied in clinical trials to assess its safety, tolerability, and potential efficacy in treating eosinophilic esophagitis.

What clinical trials is EP-104GI in?

EP-104GI is being evaluated in a Phase 1 clinical trial registered as NCT05608681. This randomized, double-blind, placebo-controlled study is recruiting 117 adults with eosinophilic esophagitis across multiple countries, including Australia, Canada, the Netherlands, New Zealand, Switzerland, and the United Kingdom.

Is EP-104GI the same as any other drug?

No alternative names for EP-104GI have been reported. It is a distinct investigational compound developed by Eupraxia Pharmaceuticals Inc. and is not known to be identical to any other marketed or investigational drug.