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Data updated: Jun 28, 2026

OSPOMYV (denosumab-dssb) · SAMSUNG BIOEPIS CO LTD

RANK Ligand Blocking Activity
Oncology Approved 2025-02-13

Ospomyv is a RANK ligand inhibitor indicated to treat osteoporosis and increase bone mass in patients at high risk for fracture. It is used for postmenopausal women and men with osteoporosis, as well as individuals with glucocorticoid-induced osteoporosis. The medication is also approved for patients undergoing specific hormonal therapies for cancer, including men with nonmetastatic prostate cancer and women with breast cancer.

Source: FDA Label • RANK Ligand Inhibitor

How OSPOMYV Works

Ospomyv binds to RANKL, a protein essential for the formation, function, and survival of osteoclasts, which are the cells responsible for bone resorption. By preventing RANKL from activating its receptor on the surface of osteoclasts and their precursors, the drug inhibits the breakdown of bone tissue. This process decreases bone resorption and increases bone mass and strength in both cortical and trabecular bone.

BLA
Biologic
2
Indications
--
Phase 3 Trials
1
Years on Market

Details

Status
Prescription
First Approved
2025-02-13
Routes
SUBCUTANEOUS
Dosage Forms
INJECTABLE

Companies

Active Ingredient: DENOSUMAB-DSSB

OSPOMYV Approval History

2026
Original
New Indication
New Form
Label Update
2 FDA actions from 2025 to 2025 · 1 indication expansions
Oct 2025 ORIGINAL
Efficacy
Feb 2025 ORIGINAL
Update

What OSPOMYV Treats

4 indications

OSPOMYV is approved for 4 conditions since its original approval in 2025. These indications span multiple therapeutic areas including oncology, immunology, and more.

Source: FDA Label

OSPOMYV Boxed Warning

SEVERE HYPOCALCEMIA IN PATIENTS WITH ADVANCED KIDNEY DISEASE Patients with advanced chronic kidney disease (eGFR <30 mL/min/1.73 m 2 ), including dialysis-dependent patients, are at greater risk of severe hypocalcemia following denosumab products administration. Severe hypocalcemia resulting in hospitalization, life-threatening events and fatal cases have been reported [see Warnings and Precautions (5.1) ] . The presence of chronic kidney disease-mineral bone disorder (CKD-MBD) markedly increase...

Auto-substitute OK for Prolia

Pharmacists can substitute OSPOMYV for Prolia without calling the prescriber. This is a lower-cost alternative with no clinically meaningful differences.

OSPOMYV Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

What's emerging in OSPOMYV's indications

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications OSPOMYV treats. First-in-class if their pivotal trials read out positive.

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Key Completed Trials

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

OSPOMYV FDA Label Details

Indications & Usage

FDA Label (PDF)

Ospomyv is a RANK ligand (RANKL) inhibitor indicated for treatment: of postmenopausal women with osteoporosis at high risk for fracture to increase bone mass in men with osteoporosis at high risk for fracture of glucocorticoid-induced osteoporosis in men and women at high risk for fracture to increase bone mass in men at high risk for fracture receiving androgen deprivation therapy for nonmetastatic prostate cancer to increase bone mass in women at high risk for fracture receiving adjuvant aromatase inhibitor therapy for breast cancer 1.1 Treatment of Postmenopausal Women with Osteoporosis at ...

⚠️ BOXED WARNING

WARNING: SEVERE HYPOCALCEMIA IN PATIENTS WITH ADVANCED KIDNEY DISEASE Patients with advanced chronic kidney disease (eGFR <30 mL/min/1.73 m 2 ), including dialysis-dependent patients, are at greater risk of severe hypocalcemia following denosumab products administration. Severe hypocalcemia resultin...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.