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Specifications
| Appearance: | White or almost white very hygroscopic powder |
| Purity (HPLC): | 97.5% min |
| Mass Spectrum: | 4117.72 ± 1 |
| Solubility: | Freely soluble in water and in methanol, practically insoluble in acetonitrile |
| Total Impurities: | 2.5% max |
| Largest Single Impurity: | 0.5% max |
| Acetic Acid: | 10.0% max |
| Water: | 10.0% max |
| Residual Solvent - Acetonitrile: | 410 ppm max |
| Residual Solvent - Dichloromethane: | 600 ppm max |
| Residual Solvent - N,N-Dimethylformamide: | 880 ppm max |
Applications
1.1 Treatment of Osteoporosis
Teriparatide acetate is primarily used for the treatment of osteoporosis, particularly in:
Postmenopausal women at high risk of fracture
Men with primary or hypogonadal osteoporosis
Patients with glucocorticoid-induced osteoporosis
It is the only approved anabolic (bone-building) treatment for osteoporosis, as opposed to antiresorptive agents like bisphosphonates.
1.2 Bone Fracture Healing (Off-Label/Investigational)
Teriparatide has been studied for its potential to:
Accelerate fracture healing, particularly in stress fractures, pelvic, or vertebral fractures
Improve bone quality in nonunion or delayed union cases
Although not an official indication, it shows promise in orthopedic and trauma medicine.
1.3 Hypoparathyroidism Research
Research is ongoing into its potential use as a replacement therapy in chronic hypoparathyroidism, offering an alternative to full-length PTH (1–84) and calcium/vitamin D supplements.
1.4 Bone Regeneration in Dentistry and Surgery
Experimental and early clinical studies suggest teriparatide may assist in:
Alveolar bone regeneration
Periodontal repair
Implant site enhancement
Benefits
3.1 Proven Efficacy in Fracture Risk Reduction
Clinical trials have demonstrated that teriparatide significantly:
Increases bone mineral density (BMD)
Reduces the incidence of vertebral and non-vertebral fractures
Offers faster improvement compared to bisphosphonates in high-risk patients
3.2 Unique Anabolic Effect
It is the only osteoporosis medication that directly stimulates new bone formation, providing a distinct therapeutic benefit for patients who do not respond to antiresorptive treatments.
3.3 Rapid Onset of Action
Patients typically experience measurable improvements in BMD within 3 to 6 months of therapy.
3.4 Suitable for Severe and Drug-Resistant Osteoporosis
Especially beneficial for:
Patients with multiple fractures
Those with low bone turnover states
Individuals with failed response to other osteoporosis medications
3.5 Bone Quality Improvement
Beyond density, teriparatide improves bone microarchitecture, strength, and material properties, reducing fracture risk even when BMD gains are modest.
Conclusion
Teriparatide acetate (CAS 52232-67-4) represents a significant advancement in the management of osteoporosis, offering a unique anabolic approach to increasing bone density and reducing fracture risk. By stimulating new bone formation, it addresses unmet needs in patients with severe or treatment-resistant osteoporosis. Its use extends into investigational areas such as bone regeneration and fracture healing, further highlighting its therapeutic potential. While its administration requires medical supervision and time-limited use, teriparatide remains a powerful tool in the fight against debilitating bone loss and fragility fractures.
