Biocon Biologics Secures FDA Approval for Two Denosumab Biosimilars, Expanding Its Portfolio
Biocon Biologics Ltd. (BBL) has received FDA approval for Bosaya™ and Aukelso™, biosimilars of Prolia® and Xgeva® respectively. Bosaya™ is approved for treating various forms of osteoporosis, while Aukelso™ is indicated for preventing skeletal-related events in cancer patients and treating giant cell tumor of bone. Both biosimilars have provisional interchangeability designation. The approval could significantly impact the U.S. healthcare market, where denosumab generated nearly $5 billion in sales. The biosimilars demonstrated comparable quality, safety, and efficacy to their reference products in clinical trials.

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Biocon Biologics Ltd. (BBL), a subsidiary of Biocon Ltd., has achieved a significant milestone in its mission to expand access to critical biologic therapies. The U.S. Food and Drug Administration (FDA) has granted approval for two of the company's biosimilar products, Bosaya™ and Aukelso™, both denosumab biosimilars.
FDA Approval Details
Bosaya™ (denosumab-kyqq), a biosimilar of Prolia®, is a 60 mg/mL injection for subcutaneous use in a single-dose prefilled syringe. Aukelso™ (denosumab-kyqq), a biosimilar of Xgeva®, is a 120 mg/1.7 mL (70 mg/mL) injection for subcutaneous use in a single-dose vial. Both products have received provisional interchangeability designation from the FDA.
Therapeutic Applications
Bosaya™
Bosaya™ is approved for treating osteoporosis in various patient populations, including:
- Postmenopausal women at high risk of fracture
- Men with osteoporosis at high risk of fracture
- Patients with glucocorticoid-induced osteoporosis
- Men receiving androgen deprivation therapy for nonmetastatic prostate cancer
- Women receiving adjuvant aromatase inhibitor therapy for breast cancer
Aukelso™
Aukelso™ is indicated for:
- Preventing skeletal-related events in patients with multiple myeloma and bone metastases from solid tumors
- Treating adults and skeletally mature adolescents with giant cell tumor of bone
- Managing hypercalcemia of malignancy refractory to bisphosphonate therapy
Market Impact
The approval of these biosimilars could have a significant impact on the U.S. healthcare market. According to IQVIA data, denosumab generated nearly $5.00 billion in U.S. sales, with Prolia® accounting for $3.30 billion and Xgeva® for $1.60 billion.
Company Perspective
Shreehas Tambe, CEO & Managing Director of Biocon Biologics, expressed pride in offering more affordable treatment options for patients with osteoporosis and expanding the company's oncology care portfolio. He stated, "This achievement underscores our scientific and regulatory capabilities and reinforces our commitment to delivering high-quality biosimilars that support sustainable healthcare systems and improve patient outcomes."
Clinical Data and Safety Information
Both biosimilars demonstrated comparable quality, safety, and efficacy to their reference products in clinical trials. Bosaya™ is approved with the same Risk Evaluation and Mitigation Strategy (REMS) plan as Prolia® to inform healthcare providers and patients about the risks of severe hypocalcemia in patients with advanced chronic kidney disease.
Epidemiology and Market Need
Osteoporosis affects approximately 10 million adults over age 50 in the U.S., with another 44 million at risk due to low bone density. The approval of Bosaya™ could potentially increase access to treatment for this significant patient population.
Bone metastases, which Aukelso™ is approved to treat, affect more than 330,000 patients annually in the United States, highlighting the importance of accessible treatment options in oncology care.
The approval of Bosaya™ and Aukelso™ marks another step forward in Biocon Biologics' mission to expand access to critical biologic therapies and improve patient outcomes through high-quality, affordable biosimilars.
Historical Stock Returns for Biocon
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-1.62% | -2.70% | -2.73% | +6.33% | -5.72% | -19.87% |