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UGN-103

UroGen Pharma Ltd. · Phase 3 active Small molecule ✓ Verified May 2026

UGN-103 is a Small molecule Small molecule drug developed by UroGen Pharma Ltd.. It is currently in Phase 3 development for Non-muscle invasive bladder cancer. Also known as: UGN-103 (mitomycin) for intravesical solution.

UGN-103 is a synthetic, small molecule that targets the urothelial cancer cells.

UGN-103 is a small molecule being studied in a Phase 3 clinical trial for the treatment of low-grade intermediate-risk non-muscle invasive bladder cancer. The study, NCT06331299, is evaluating the efficacy and safety of UGN-103 in patients with this condition.

Likelihood of approval
61.3% vs 58.3% industry baseline
If approved by FDA: likely 2028–2030
Steps remaining: NDA/BLA submission
Confidence: High
Why this estimate
  • Baseline phase 3 → approval rate +58.3pp
    Industry-wide phase 3 drugs reach approval ~58.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
  • Oncology Phase 3 boost +3.0pp
    Oncology Phase 3 trials have higher approval rates (~61%) than the cross-industry average due to clearer endpoints and FDA oncology pathway.
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2028–2030
EMA EU 2029–2031 +0.7 yr
MHRA GB 2029–2031 +0.7 yr
Health Canada CA 2029–2032 +0.9 yr
TGA AU 2029–2032 +1.2 yr
PMDA JP 2029–2032 +1.5 yr
NMPA CN 2030–2033 +2.3 yr
MFDS KR 2029–2032 +1.4 yr
CDSCO IN 2029–2033 +1.8 yr
ANVISA BR 2030–2033 +2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic nameUGN-103
Also known asUGN-103 (mitomycin) for intravesical solution
SponsorUroGen Pharma Ltd.
Drug classSmall molecule
TargetNot publicly disclosed
ModalitySmall molecule
Therapeutic areaOncology
PhasePhase 3

Mechanism of action

UGN-103 works by selectively targeting and killing cancer cells in the bladder, while sparing healthy cells. This is achieved through a unique mechanism that involves the disruption of the cancer cells' ability to repair DNA damage. As a result, the cancer cells undergo programmed cell death, or apoptosis.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

Frequently asked questions about UGN-103

What is UGN-103?

UGN-103 is a Small molecule drug developed by UroGen Pharma Ltd., indicated for Non-muscle invasive bladder cancer.

How does UGN-103 work?

UGN-103 is a synthetic, small molecule that targets the urothelial cancer cells.

What is UGN-103 used for?

UGN-103 is indicated for Non-muscle invasive bladder cancer.

Who makes UGN-103?

UGN-103 is developed by UroGen Pharma Ltd. (see full UroGen Pharma Ltd. pipeline at /company/urogen-pharma-ltd).

Is UGN-103 also known as anything else?

UGN-103 is also known as UGN-103 (mitomycin) for intravesical solution.

What drug class is UGN-103 in?

UGN-103 belongs to the Small molecule class. See all Small molecule drugs at /class/small-molecule.

What development phase is UGN-103 in?

UGN-103 is in Phase 3.

What are the side effects of UGN-103?

Common side effects of UGN-103 include Fatigue, Nausea, Diarrhea.

What does UGN-103 target?

UGN-103 targets Not publicly disclosed and is a Small molecule.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing