Comparative Efficacy, Safety, PK, and Immunogenicity Study

Osteoporosis, Postmenopausal Clinical Trial

Official title: A Randomized, Double-blind, Parallel-group, Active-controlled Comparative Study to Evaluate the Efficacy, Safety, Pharmacokinetics, and Immunogenicity of LY06006 Compared With EU-Prolia in Postmenopausal Women With Osteoporosis

Status Active, not recruiting

Clinical Trial Summary

this comparative clinical study is designed to demonstrate that LY06006 and EU-Prolia have no clinically meaningful differences in clinical efficacy, pharmacodynamic (PD), safety, PK, and immunogenicity in postmenopausal women with osteoporosis.

Clinical Trial Description

This is a randomized, double-blind, parallel-group, active-controlled, comparative study (Main Period) with a Transition Period to compare the efficacy, PD, safety, PK, and immunogenicity of LY06006 and EU-Prolia among female participants with postmenopausal osteoporosis.

Participants will go through a Screening Period within 35 days prior to first dosing. After signing the informed consent form (ICF), participants will be screened for age, menopausal status, and vitamin D levels, in addition to other inclusion/exclusion criteria. Participants will also undergo a screening DXA examination. Eligibility is based on the absolute value consistent with a T-score ≤ -2.5 and ≥ -4.0 at the lumbar spine.

Main Period Upon completing all screening assessments and meeting all eligibility criteria, participants will enter the Main Period of the study. The Main Period will last 12 months where participants will be randomized in a 1:1 ratio to receive either a dose (60 mg/1 mL) of LY06006 or EU-Prolia subcutaneously at the Baseline Visit (Day 1) and Month 6. All participants will receive daily supplements of elemental calcium (at least 1000 mg) and vitamin D (at least 400 IU). Study visits will occur at the Baseline Visit (Day 1), and at Months 0.5, 1, 2, 3, 6, 9, and 12.

Follow-up BMD assessment will be done at Months 6 and 12. Blood sampling for PD, safety, PK, and immunogenicity will be done at the Baseline Visit (Day 1), and at Months 0.5, 1, 2, 3, 6, 9, and 12.

Transition Period The Transition Period will be conducted in all participants who completed the Main Period of the study. At Month 12, participants who received EU-Prolia in the Main Period will be re-randomized in a 1:1 ratio to either be transitioned to receive a dose of LY06006 or continue on EU-Prolia subcutaneously. Participants who received LY06006 in the Main Period will be re-randomized to continue to receive LY06006 in the Transition Period. All participant assignment during the Transition Period will be performed via the interactive response technology (IRT) system to maintain the blind of treatment assignment.

Blood sampling for PD, safety, PK, and immunogenicity will be done at Months 15 (PK and immunogenicity only) and 18. End of study (EoS) assessments will be performed at Month 18 or at the time of early discontinuation or withdrawal of the participant. The duration of the clinical phase for participants from the Screening Period until the EoS Visit is approximately 19 months (up to 5 weeks of Screening Period, 12 months of Main Period, and 6 months of Transition Period). ;

Related Conditions & MeSH terms

• Osteoporosis
• Osteoporosis, Postmenopausal

• NCT number: NCT05853354
• Study type: Interventional
• Source: Luye Pharma Group Ltd.
• Status: Active, not recruiting
• Phase: Phase 3
• Start date: April 5, 2023
• Completion date: December 30, 2025