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GX-03

Phase 2

Covid19 | Small molecule | Infectious Disease |Turn Therapeutics Inc.|Last Updated: Sep 4, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment85

FDA Designations

No designations recorded

Clinical trial landscape

GX-03 · 2 trials · 4 indications

Phase 2 2
NCT07355075A Double-Blind, Randomized, Vehicle-Controlled Phase 2 Study to Assess the Efficacy and Safety of GX-03 in Adult Subjects With Moderate to Severe Atopic Dermatitis (Eczema)Eczema Atopic Dermatitis
RECRUITING190 Analytics
NCT04951349Safety and Efficacy of Intranasal Application of GX-03 as a Treatment and Prevention for COVID-19.Covid19
COMPLETED85 Analytics
PHASE2RECRUITING
A Double-Blind, Randomized, Vehicle-Controlled Phase 2 Study to Assess the Efficacy and Safety of GX-03 in Adult Subjects With Moderate to Severe Atopic Dermatitis (Eczema)
Eczema Atopic DermatitisUnlock trial analytics
PHASE2COMPLETED
Safety and Efficacy of Intranasal Application of GX-03 as a Treatment and Prevention for COVID-19.
Covid19Unlock trial analytics

Study Endpoints

Primary Endpoints

vIGA-AD Success at Week 4
At Day 28 (Week 4)

vIGA-AD Success defined as score of 0 (clear) or 1 (almost clear) with a ≥2-grade improvement from baseline at Week 4. All Primary Outcome measures will be evaluated using the Hochberg-method.

EASI-75 at Week 4
At Day 28 (Week 4)

75% reduction from baseline in Eczema Area Severity Index (EASI) at Week 4. All Primary Outcome measures will be evaluated using the Hochberg-method.

EASI-90 at Week 8
At Day 56 (Week 8)

90% reduction from baseline in Eczema Area Severity Index (EASI) at Week 8. All Primary Outcome measures will be evaluated using the Hochberg-method.

EASI-100 at Week 8
At Day 56 (Week 8)

100% reduction from baseline in Eczema Area Severity Index (EASI) at Week 8. All Primary Outcome measures will be evaluated using the Hochberg-method.

Reduction of 60% in viral load from baseline
5 days

Time to achieve a 60% reduction in viral load from baseline.

Primary Safety analysis
5-10 days

To evaluate the incidence rate(s) of non-serious and serious adverse events associated with administration of the study product.

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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
GX-03EXPERIMENTALTreatment Arm
VehicleEXPERIMENTALVehicle Control
Treatment of hospitalized patients with laboratory-confirmed COVID-19EXPERIMENTALHospitalized patients with laboratory-confirmed COVID-19 using GX-03 administered intranasally TID for 5 days.
Placebo Treatment of hospitalized patients with laboratory-confirmed COVID-19PLACEBO_COMPARATORHospitalized patients with laboratory-confirmed COVID-19 using placebo (petrolatum emulsion) administered intranasally TID for 5 days.
Prevention of SARS-COV-2 in Health Care ProvidersEXPERIMENTALHealth care providers with laboratory-confirmed negative COVID-19 using GX-03 administered intranasally TID for 10 days.
Placebo Prevention of SARS-COV-2 in Health Care ProvidersPLACEBO_COMPARATORHealth care providers with laboratory-confirmed negative COVID-19 using placebo (petrolatum emulsion) administered intranasally TID for 10 days.

Interventions

NameTypeDescription
GX-03COMBINATION_PRODUCTTopical ointment
VehicleOTHEROintment carrier
Petrolatum ointmentDRUGViscous ointment similar in form to study drug.
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Eligibility Criteria

Age Range18 Years to 80 Years
SexALL
Healthy VolunteersNo
Study Sites1

Participants must meet all of the following criteria: * Adults aged 18 to 80 years, inclusive * Male or female subjects in good general health as determined by medical history * Subjects meeting all of the following baseline criteria: * Baseline EASI Score of ≥ 1.1 * Baseline vIGA-AD Score of ...

Countries:United StatesPanama
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Recent Changes (Last 90 Days)

MEDIUMSep 4, 2026NCT07355075Enrollment: 110 → 190
MEDIUMSep 4, 2026NCT07355075Enrollment: 110 → 190

Frequently asked questions about GX-03

What is GX-03 used for?

GX-03 is an investigational small molecule being studied for the treatment and prevention of COVID-19 and for moderate to severe atopic dermatitis (eczema). It is administered intranasally for COVID-19 and is being evaluated in a topical formulation for eczema. GX-03 is not yet approved and remains in clinical development.

What does GX-03 target?

The specific molecular target of GX-03 is not disclosed in available information. It is a small molecule being developed by Turn Therapeutics Inc. for infectious disease and dermatology indications. Clinical trials are evaluating its safety and efficacy in COVID-19 and atopic dermatitis, but its mechanism of action has not been publicly detailed.

Who makes GX-03?

GX-03 is being developed by Turn Therapeutics Inc., a biopharmaceutical company. The company is conducting clinical trials for GX-03 in COVID-19 and atopic dermatitis. Turn Therapeutics Inc. is publicly traded under the ticker TTRX.

What phase is GX-03 in?

GX-03 is in Phase 2 clinical development. It has completed a Phase 2 trial for COVID-19 and is currently recruiting participants for a Phase 2 trial in atopic dermatitis. GX-03 is investigational and has not received FDA approval.

What clinical trials is GX-03 in?

GX-03 has one completed Phase 2 trial, NCT04951349, which studied intranasal GX-03 for COVID-19 treatment and prevention in Panama with 85 participants. An ongoing Phase 2 trial, NCT07355075, is recruiting 190 adults in the United States with moderate to severe atopic dermatitis.

Is GX-03 the same as any other drug?

No alternative names for GX-03 have been reported. It is referred to solely as GX-03 in clinical trial registrations and by its developer, Turn Therapeutics Inc. Patients and researchers should use the name GX-03 when searching for information about this investigational drug.