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RZ402

Phase 2

Diabetic Macular Edema | Small molecule | Ophthalmology |Rezolute, Inc.|Trials Updated: Sep 1, 2026

RZ402 target and mechanism

ModalitySmall molecule

Also known as Experimental: Group 1- RZ402, Experimental: Group 2- RZ402, Experimental: Group 3- RZ402

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment94

FDA Designations

No designations recorded

RZ402 clinical trials

RZ402 · 1 trial · 1 indication

Phase 2 1
NCT05712720Study to Evaluate the Efficacy and Safety of RZ402 in Diabetic Macular Edema (DME)Diabetic Macular Edema
COMPLETED94 Analytics
PHASE2COMPLETED
Study to Evaluate the Efficacy and Safety of RZ402 in Diabetic Macular Edema (DME)
Diabetic Macular EdemaUnlock trial analytics

Study Endpoints

Primary Endpoints

Change in Central Subfield Thickness in Study Eye
12 weeks

Change from baseline in Central Subfield Thickness (CST), as measured by Spectral Domain Ocular Coherence Tomography (SD-OCT), compared to placebo. Refer to Study Eye Inclusion/Exclusion Criteria for Study Eye definition. Only one eye was chosen as the Study Eye. In the event both eyes were eligible, the eye with the worse edema (greater CST value) was considered for the purpose of this study as the Study Eye. If both eyes had the same level of edema, the right eye was selected.

Secondary Endpoints

Change in Best Corrected Visual Acuity in Study Eye
12 weeks
Gain of ≥5 Letters in Best Corrected Visual Acuity in Study Eye
12 weeks
Loss of ≥5 Letters in Best Corrected Visual Acuity in Study Eye
12 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Group 1 - 50 mg RZ402EXPERIMENTALRZ402 50mg oral tablet, once daily for 3 months
Group 2 - 200 mg RZ402EXPERIMENTALRZ402 200mg oral tablet, once daily for 3 months
Group 3 - 400 mg RZ402EXPERIMENTALRZ402 400mg oral tablet, once daily for 3 months
Group 4 - PlaceboPLACEBO_COMPARATORplacebo oral tablet, once daily for 3 months

Interventions

NameTypeDescription
Experimental: Group 1 - 50mg RZ402DRUGRZ402 50 mg oral tablet, once daily for 3 months
Experimental: Group 2 - 200mg RZ402DRUGRZ402 200mg oral tablet, once daily for 3 months
Experimental: Group 3 - 400mg RZ402DRUGRZ402 400mg oral tablet, once daily for 3 months
Placebo: Group 4 - PlaceboOTHERPlacebo oral tablet, once daily for 3 months
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites32

Inclusion Criteria: General Inclusion Criteria: 1. Confirmed diabetes mellitus Type 1 or Type 2 2. Stable glycemic control Study Eye Inclusion Criteria: 3. Mild to moderate non-proliferative diabetic retinopathy (NPDR) with retinal thickening due to CI-DME as determined by the Investigator. 4....

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMOct 2, 2026NCT05712720TRIAL_REMOVED: changed
MEDIUMOct 2, 2026NCT05712720TRIAL_REMOVED: changed
MEDIUMOct 2, 2026NCT05712720TRIAL_REMOVED: changed

Frequently asked questions about RZ402

What is RZ402 used for?

RZ402 is being developed for the treatment of diabetic macular edema (DME), an eye condition involving fluid accumulation in the retina of people with diabetes. It is an investigational small molecule being studied in a Phase 2 clinical program. It has not been approved for commercial use.

Who is developing RZ402?

RZ402 is being developed by Rezolute, Inc., a biopharmaceutical company that trades on the Nasdaq under the ticker symbol RZLT. Rezolute is the sponsor of the clinical program evaluating RZ402 in diabetic macular edema.

What phase is RZ402 in?

RZ402 is in Phase 2 development. Its Phase 2 study in diabetic macular edema has been completed, and the drug remains investigational rather than approved. No active trials of RZ402 are currently listed.

What clinical trial has studied RZ402?

RZ402 has been evaluated in the Phase 2 trial NCT05712720, titled Study to Evaluate the Efficacy and Safety of RZ402 in Diabetic Macular Edema (DME). The trial enrolled 94 participants in the United States, was randomized, double-blind, and placebo-controlled, and has completed.

Who was eligible for the RZ402 diabetic macular edema trial?

The Phase 2 trial NCT05712720 enrolled adults 18 years of age and older of any sex, with diabetic macular edema. It did not enroll healthy volunteers. A total of 94 participants were randomized in the United States across the study's dose groups and placebo.