New drug combo shows promise for tough bladder cancer

NCT ID NCT03258593

First seen Jan 06, 2026 · Last updated Jun 23, 2026 · Updated 30 times

Summary

This early-phase trial tested two drugs—durvalumab and vicineum—in 15 people with high-grade non-muscle-invasive bladder cancer that had not responded to standard BCG treatment. The goal was to see if the combination is safe and can help the immune system fight the cancer. Participants received the drugs for up to 2 years, with regular check-ups and tumor samples.

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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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Contacts and locations

Locations

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States

What this could mean

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

Active substance

durvalumab (Imfinzi) and vicineum (oportuzumab monatox)

What this could lead to

If it works, this combination could offer a new treatment option for people with early-stage bladder cancer that hasn't responded to standard therapy.

What could go wrong

This is a very early, small phase 1 trial with only 15 participants, so results may not apply to everyone. The main goal is safety, not proof of effectiveness, and side effects are possible.

Conditions

The condition(s) this trial relates to.

in situ carcinoma non-invasive bladder urothelial carcinoma urinary bladder neoplasm Urinary Bladder Neoplasms

As listed by the trial registrant

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