MBX Biosciences reports sustained one-year data for weekly drug trial

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MBX Biosciences Announces One-Year Data Demonstrating Sustained Benefit of Once-Weekly Canvuparatide as a Potential PTH Replacement Therapy in Chronic Hypoparathyroidism

June 12, 2026 7:00 AM EDT

Responder rate of 57% at one year in open-label extension (OLE) comparable to 63% at 12 weeks in Phase 2 Avail trial

Results consistent with restoration of systemic PTH activity through serum calcium normalization, reduction of urine calcium excretion, restoration of bone metabolism and increase of eGFR (a measure of kidney function)

High retention rate with 90% of patients entering the OLE remaining in the study at one year

Canvuparatide was generally well tolerated with no new safety signals during the OLE

PK supports once-weekly... More