Recombinant human parathyroid hormone
| Clinical data | |
|---|---|
| Trade names | Preotact, Natpara, Natpar | 
| AHFS/Drugs.com | Monograph | 
| MedlinePlus | a617013 | 
| License data | |
| Routes of administration | Subcutaneous | 
| Drug class | Hormonal agent | 
| ATC code | |
| Legal status | |
| Legal status | 
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| Identifiers | |
| CAS Number | |
| DrugBank | |
| UNII | |
| KEGG | |
| Chemical and physical data | |
| Formula | C408H674N126O126S2 | 
| Molar mass | 9424.76 g·mol−1 | 
Recombinant human parathyroid hormone is an artificially manufactured form of the parathyroid hormone used to help treat hypoparathyroidism (under-active parathyroid glands) and osteoporosis.
Recombinant human parathyroid hormone (Preotact) received market authorization in the European Union in April 2006 to treat osteoporosis in postmenopausal women at high risk of fractures. Preotact marketing authorisation was later voluntarily withdrawn in 2014 by the holder NPS Pharma. FDA approval (as Preos) was not granted in the US for the same indication due to hypercalcemia and injection device issues.
Recombinant human parathyroid hormone (Natpara) was approved for medical use in the United States in January 2015, and received (as Natpar) conditional market authorization in the European Union in February 2017 as orphan drug. On 2019 Natpara was recalled in the US due to rubber particle issues emerging from daily use of the cartridge. Takeda announced in 2022 its decision to stop manufacturing Natpara/Natpar globally at the end of 2024.