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UGN-104

Phase 3

Upper Urinary Tract Urothelial Carcinoma | Small molecule | Oncology |UroGen Pharma Ltd.|Last Updated: Sep 3, 2026

Development status

Highest phase Phase 3
Registered trials 1 across 1 sponsor since Jan 2025

Target and mechanism

Molecular targetmitomycin
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment70

FDA Designations

No designations recorded

Clinical trial landscape

UGN-104 · 1 trial · 2 indications

Phase 3 1
NCT06774131A Phase 3 Single-arm Study of UGN-104 for the Treatment of Low-grade Upper Tract Urothelial CancerUpper Urinary Tract Urothelial Carcinoma
RECRUITING70 Analytics
PHASE3RECRUITING
A Phase 3 Single-arm Study of UGN-104 for the Treatment of Low-grade Upper Tract Urothelial Cancer
Upper Urinary Tract Urothelial CarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Complete response rate (CRR)
3 months

CRR is defined as the proportion of patients who achieved CR at the PDE Visit.

Secondary Endpoints

Duration of response (DOR)
12 months
Durable complete response (DCR) rate
12 months
Incidence of treatment-emergent adverse events (TEAEs), serious TEAEs, TEAEs of special interest, and abnormal clinical laboratory test results (hematology and serum chemistry)
15 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
UGN-104EXPERIMENTALPatients will receive UGN-104 once weekly for 6 weeks (a total of 6 doses). The dose of UGN-104 to be instilled is 4 mg mitomycin per 1 mL sterile hydrogel via ureteral catheter (retrograde administration) or nephrostomy tube (antegrade administration). Patients who have a CR at the PDE Visit will enter the Follow-up Period and may receive UGN-104 as maintenance treatment once monthly for 11 months (a total of 11 doses) at the discretion of the investigator.

Interventions

NameTypeDescription
UGN-104DRUGUGN-104 consists of mitomycin and sterile hydrogel (a proprietary thermally responsive gel) that is used to reconstitute mitomycin before instillation. The reverse thermal properties of UGN-104 allow for local administration of mitomycin as a liquid under chilled conditions, with subsequent conversion to a semi-solid gel depot following instillation into the UUT.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites79

Inclusion Criteria: 1. Provide written informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form and protocol. 2. Naive or recurrent patients with LG, non-invasive UTUC in the pyelocalyceal system, with the following disease characteristi...

Countries:United StatesBulgariaGeorgiaHungaryIsraelLatviaPolandRomaniaSpain
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Recent Changes (Last 90 Days)

LOWSep 3, 2026NCT06774131lastUpdatePostDate: changed
LOWSep 3, 2026NCT06774131lastUpdatePostDate: changed

Frequently asked questions about UGN-104

What is UGN-104 used for?

UGN-104 is an investigational small molecule being developed for the treatment of low-grade Upper Urinary Tract Urothelial Carcinoma, a type of cancer affecting the urinary tract. It is currently in Phase 3 clinical development and has not been approved by regulatory authorities.

What does UGN-104 target?

UGN-104 targets mitomycin, a chemotherapeutic agent. It is designed to deliver mitomycin directly to the upper urinary tract to treat low-grade Upper Urinary Tract Urothelial Carcinoma. The drug is being studied as a single-arm treatment in an ongoing clinical trial.

Who makes UGN-104?

UGN-104 is being developed by UroGen Pharma Ltd., a biopharmaceutical company traded on NASDAQ under the ticker symbol URGN. The company is conducting a Phase 3 clinical trial of UGN-104 for the treatment of low-grade Upper Urinary Tract Urothelial Carcinoma.

What phase is UGN-104 in?

UGN-104 is in Phase 3 clinical development. It is an investigational drug, meaning it has not yet been approved by the FDA or other regulatory agencies. The ongoing Phase 3 trial is currently recruiting participants to evaluate the drug's safety and efficacy.

What clinical trials is UGN-104 in?

UGN-104 is being studied in a Phase 3 clinical trial registered as NCT06774131. This single-arm, uncontrolled study is recruiting 70 participants with low-grade Upper Urinary Tract Urothelial Carcinoma across multiple countries, including the United States, Bulgaria, Georgia, Hungary, Israel, Latvia, Poland, Romania, and Spain.

Is UGN-104 the same as mitomycin?

UGN-104 is not the same as mitomycin. Mitomycin is the active chemotherapeutic agent that UGN-104 targets or delivers. UGN-104 is a drug formulation designed to administer mitomycin locally to the upper urinary tract for the treatment of low-grade Upper Urinary Tract Urothelial Carcinoma.