CuraTeQ Biologics Completes Successful Phase 3 Study for Denosumab Biosimilar, Eyes 2026 Regulatory Filings
CuraTeQ Biologics, a subsidiary of Aurobindo Pharma, has successfully completed a Phase 3 clinical study for its denosumab biosimilar, comparing it to Prolia. The study involved 446 postmenopausal women with osteoporosis across 40 European sites. Results met all clinical endpoints, showing no significant differences from the reference product. The company plans to submit regulatory filings in key markets from January 2026, potentially entering the lucrative osteoporosis treatment market.

*this image is generated using AI for illustrative purposes only.
Aurobindo Pharma 's wholly owned subsidiary, CuraTeQ Biologics Private Limited, has announced the successful completion of a pivotal Phase 3 clinical study for its denosumab biosimilar. The study, which compared the biosimilar to Prolia (denosumab), marks a significant milestone in the company's efforts to bring a new osteoporosis treatment option to market.
Study Details and Results
The Phase 3 clinical trial involved 446 women with postmenopausal osteoporosis and was conducted across 40 sites in five European countries. The study met all clinical endpoints, demonstrating no clinically meaningful differences between CuraTeQ's biosimilar and the reference product, Prolia.
Key findings of the study include:
- The primary endpoint, measuring the percentage change in Lumbar Spine Bone Mineral Density (LS-BMD) at Week 52, met the pre-defined equivalence margin of (-1.45, +1.45).
- The co-primary endpoint, assessing the area under the effect curve (AUEC) of serum C-terminal telopeptide (sCTX) from Week 0 to Week 26, fell within the acceptable range of (0.80, 1.25).
- These results satisfy regulatory criteria for both the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA).
Expert Commentary
Dr. Arpit Prajapati, Head of Clinical Sciences at CuraTeQ, commented on the study's significance: "The clinical trial was designed to evaluate the efficacy of the denosumab biosimilar in enhancing bone mineral density and mitigating fracture risk in postmenopausal women, a population that is particularly susceptible to osteoporosis. These findings suggest that CuraTeQ's denosumab biosimilar exhibits comparable efficacy to Prolia, highlighting its potential as a viable alternative for patients in need of osteoporosis treatment."
Regulatory Outlook
CuraTeQ is now setting its sights on the regulatory approval process. Dr. Disha Dadke, Head of R&D and Regulatory Sciences at CuraTeQ, outlined the company's plans: "CuraTeQ plans to submit regulatory filings for the denosumab biosimilar in the EU, US and other key regulated markets from January 2026. The company's regulatory team has consulted with the FDA and is actively engaging with other regulatory authorities to ensure a smooth filing and an efficient review process."
Market Implications
The successful completion of this Phase 3 study positions CuraTeQ Biologics and its parent company, Aurobindo Pharma Limited, to potentially enter the lucrative market for osteoporosis treatments. Denosumab, marketed as Prolia by Amgen, is a widely used medication for treating osteoporosis in postmenopausal women and has been a significant revenue generator in the global pharmaceutical market.
As biosimilars typically offer more affordable alternatives to branded biologics, the introduction of CuraTeQ's denosumab biosimilar could potentially increase access to this important osteoporosis treatment for patients worldwide, pending regulatory approvals.
Investors and industry observers will likely be watching closely as CuraTeQ progresses towards its planned regulatory submissions in early 2026, which could mark the beginning of a new chapter in the company's growth and in the broader landscape of osteoporosis treatment options.
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