Scientists dig into tumor DNA to crack immunotherapy resistance

NCT ID NCT03291028

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study examines stored tumor samples from 15 people with kidney or bladder cancer who initially responded to immune checkpoint therapy but later developed new tumors. Researchers will compare the genetic and tissue features of the original and new tumors to understand how the cancer escaped the immune attack. The goal is to uncover clues about resistance, which could guide future treatments.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to

If successful, this research could reveal why some cancers stop responding to immunotherapy, pointing toward new ways to overcome resistance.

What could go wrong

This is a small, observational study (15 participants) that only looks at stored tumor samples. It will not directly test any new treatment, and findings may not apply to all patients.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

renal cell carcinoma transitional cell carcinoma ureter cancer urethra cancer Urethral Neoplasms urinary bladder carcinoma Urinary Bladder Neoplasms urothelial carcinoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Fox Chase Cancer Center - Philadelphia

    Philadelphia, Pennsylvania, 19111-2497, United States