Janssen Accelerated Approval for Bladder Cancer Therapy

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FDA has granted Janssen Pharmaceutical an accelerated approval for Balversa (erdafitinib), a treatment for adult patients with locally advanced or metastatic bladder cancer that has a type of susceptible genetic alteration known as FGFR3 or FGFR2, and that has progressed during or following prior platinum-containing chemotherapy. Patients should be selected for therapy using just-approved therascreen FGFR RGQ RT-PCR Kit, which was developed by Qiagen Manchester.

 

Approval was based on data from a clinical trial that included 87 patients with locally advanced or metastatic bladder cancer, with FGFR3 or FGFR2 genetic alterations, that had progressed following treatment with chemotherapy, according to an FDA release. “The overall response rate in these patients was 32.2%, with 2.3% having a complete response and almost 30% having a partial response,” it says. “The response lasted for an average of approximately five-and-a-half months.”

 

Common side effects reported by patients taking Balversa, the agency says,  were increased phosphate level, mouth sores, feeling tired, change in kidney function, diarrhea, dry mouth, nails separating from the bed or poor formation of the nail, change in liver function, low salt (sodium) levels, decreased appetite, change in sense of taste, low red blood cells (anemia), dry skin, dry eyes and hair loss. Other side effects include redness, swelling, peeling or tenderness on the hands or feet, constipation, stomach pain, nausea and muscle pain.

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