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Viatris Announces Positive Top-Line Results from Phase 3 Study of VR-205 in Japanese Adults with Primary Immunoglobulin A Nephropathy

$VTRSPress releaseJun 29, 2026, 6:59 AM ETRead the release

Viatris reported positive top-line Phase 3 results for VR-205 in Japanese adults with primary IgAN, showing a 33.75% reduction in urine protein-to-creatinine ratio at nine months. The drug met all key secondary endpoints, including significant eGFR improvement, and was well tolerated with a safety profile consistent with global studies. The company targets submission of a New Drug Application in Japan by the end of 2026 for this asset, already marketed as Tarpeyo in the U.S.

Key figures

Drug Name
VR-205 (targeted-release budesonide formulation)
Phase Of Trial
Phase 3
Dosage
16 mg
P value
< 0.001
Upcr reduction
33.75 percent
Participant count
39

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