EP4593867A2 — Long-acting parathyroid hormone
Assigned to Extend Biosciences Inc · Expires 2025-08-06 · 1y expired
What this patent protects
The invention provides a long-acting parathyroid hormone peptide (PTH) that is retained in a subject's blood serum for periods of time that greatly exceed the natural hormone. The long-acting PTH is conjugated to at the carbon 3 position of a non-hormonal vitamin D via a scaffold…
USPTO Abstract
The invention provides a long-acting parathyroid hormone peptide (PTH) that is retained in a subject's blood serum for periods of time that greatly exceed the natural hormone. The long-acting PTH is conjugated to at the carbon 3 position of a non-hormonal vitamin D via a scaffold of discreet length that facilitates its purification, detection, solubility, and efficacy at the PTH receptor (PTHR). The PTH may be conjugated to the non-hormonal vitamin D via a 36 mer poly(ethylene glycol) moiety (PTH-PEG36-VitD). The invention also provides optimized manufacturing methods and formulations. The PTH-PEG36-VitD has a vastly-improved serum half-life and bioavailability when compared to a non-conjugated PTH peptide. PTH-PEG36-VitD also significantly increases serum calcium, reduces urinary calcium, and reduces serum phosphate.
Drugs covered by this patent
- Yorvipath (PALOPEGTERIPARATIDE) · Ascendis Pharma Bone
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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