Review of HER2 in advanced urothelial cancer

A Retrospective Chart Review of Real-world Treatment Outcomes in Patients With Locally Advanced Unresectable or Metastatic Urothelial Cancer Based on HER2 Expression

Observational Seagen Inc. · NCT05902494

This study looks at how the HER2 status in patients with advanced bladder cancer affects their treatment choices and outcomes.

Quick facts

Study typeObservational
Enrollment350 (estimated)
Ages18 Years and up
SexAll
SponsorSeagen Inc. Industry-sponsored
Drugs / interventionsavelumab, chemotherapy
Locations19 sites (Phoenix, Arizona and 18 other locations)
Trial IDNCT05902494 on ClinicalTrials.gov

What this trial studies

This observational study aims to gather data on patients with urothelial carcinoma that expresses HER2 to understand how this affects treatment decisions. It involves reviewing medical and health records of participants who have locally advanced unresectable or metastatic urothelial cancer. The study will focus on patients who have undergone at least one line of systemic therapy and have measurable disease progression. By analyzing this data, researchers hope to gain insights into the implications of HER2 status on treatment outcomes.

Who should consider this trial

Good fit: Ideal candidates are individuals with locally advanced unresectable or metastatic urothelial carcinoma who have received prior systemic therapy.

Not a fit: Patients with concurrent malignant neoplasms requiring systemic therapy may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for patients with HER2-positive urothelial cancer.

How similar studies have performed: Other studies have explored HER2 in various cancers, showing promising results, but this specific approach in urothelial carcinoma is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histologically confirmed UC originating from the renal pelvis, ureters, bladder, or urethra. Mixed-cell type tumors are eligible as long as urothelial cell carcinoma is the predominant cell type.
* Locally advanced unresectable or metastatic stage disease
* Formalin fixed paraffin embedded (FFPE) tumor tissue blocks (or freshly sectioned slides, see laboratory manual for details) available for HER2 testing.
* At least 1 prior line of systemic therapy for locally advanced unresectable or metastatic urothelial carcinoma (LA/mUC), including 1 line of platinum-containing chemotherapy.
* Initiation of anticancer therapy for UC after prior progression on platinum-based therapy with or without maintenance avelumab between 01 January 2019 and 12 months before the end of data collection
* Radiographically documented and measurable disease progression immediately before index date

Exclusion Criteria:

* Any concurrent malignant neoplasm requiring systemic therapy during the study window
* Enrollment in a therapeutic clinical trial and received non-standard of care treatment during index line of therapy

Where this trial is running

Phoenix, Arizona and 18 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Urothelial CarcinomaUrothelial CancerBladder CancerHER2 MutationsHER2 OverexpressionHER2 AmplificationSeattle Genetics
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.