Amgen(US:AMGN) The Manila Times·2025-10-30 07:53Core Viewpoint - Celltrion, Inc. has received FDA designation for its biosimilars STOBOCLO® and OSENVELT® as interchangeable with the reference products PROLIA® and XGEVA®, respectively, for all approved indications, enhancing patient access and treatment options in the U.S. market [1][5]. Group 1: Product Information - STOBOCLO® (denosumab-bmwo) is indicated for treating postmenopausal women with osteoporosis at high risk for fracture, increasing bone mass in men with osteoporosis, and treating glucocorticoid-induced osteoporosis [4][6]. - OSENVELT® (denosumab-bmwo) is indicated for preventing skeletal-related events in patients with multiple myeloma and bone metastases, treating unresectable giant cell tumor of bone, and managing hypercalcemia of malignancy [17][21]. Group 2: Regulatory Designation - The FDA's interchangeability designation allows STOBOCLO and OSENVELT to be substituted for their reference products at pharmacies without consulting the prescriber, subject to state laws [3][5]. - The designations were based on comprehensive clinical data, including Phase III trial results demonstrating efficacy, safety, and pharmacokinetics in postmenopausal women with osteoporosis [3][5]. Group 3: Market Impact - The interchangeability designations are expected to reinforce confidence among healthcare providers, facilitating a smoother transition to these biosimilars and potentially leading to cost savings for patients and the U.S. healthcare system [3][5]. - STOBOCLO and OSENVELT were introduced to the U.S. market in July 2025, with STOBOCLO available in a 60 mg/mL injection and OSENVELT in a 120 mg/1.7 mL (70 mg/mL) injection [3][4].