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Bladder CancerOctober 2019Summary reviewed June 2026

What Researchers Found Testing Rogaratinib for Advanced Cancers

This study tested rogaratinib, a drug that blocks proteins called fibroblast growth factor receptors, in people with advanced cancers who had high levels of these proteins in their tumors. About 15% of patients saw their tumors shrink, including 12 of 52 people with advanced bladder cancer.

What the trial was testing

The trial enrolled 168 patients with bladder cancer. The study was sponsored by Bayer and tracked outcomes across the full group of patients who matched the trial's eligibility profile.

It was an early-stage trial — researchers are still confirming safety and getting an early look at how well the treatment works. Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.

What the results showed

15% of patients with high FGFR levels saw their tumors shrink with rogaratinib.

The Lancet. Oncology · 2019 · NCT01976741

These findings — that saw their tumors shrink with the treatment — were published in the The Lancet. Oncology and represent the headline result of the study.

Researchers tracked outcomes across 168 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.

What this means for patients

For patients with bladder cancer, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.

What you can do now

This was an early-stage study and rogaratinib is not yet FDA-approved. The researchers found the drug was generally well-tolerated and showed some promise in bladder cancer and other cancers with high FGFR protein levels. If you have advanced cancer, ask your doctor about open trials testing FGFR inhibitors or other approved treatment options.

Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.