Comparison of Efficacy, Pharmacodynamics, Safety, and Immunogenicity Between Bmab 1000 and Prolia® in Postmenopausal Women With Osteoporosis

NCT ID: NCT05345691

Last Updated: 2025-09-09

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE3
• Total Enrollment: 479 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2022-05-24
• Study Completion Date: 2024-06-12

Brief Summary

This is a randomized, double-blind, multicenter, parallel-arm, Phase 3 study to compare the efficacy, PK (Pharmacokinetic), PD (Pharmacodynamic), safety, and immunogenicity of Bmab 1000 and Prolia® in postmenopausal women with osteoporosis

Detailed Description

The study will consist of 3 study periods: Screening period; Part 1, double-blind active-controlled period; and Part 2, transition period. In the double-blind active-controlled period, eligible Patients will be randomized in a 1:1 ratio to receive either Bmab 1000 or Prolia®. Prior to dosing At Week 52, patients in Prolia® treatment group will be randomized again in a 1:1 ratio to either continue on Prolia® or be transitioned to Bmab 1000. To maintain the study blinding, the patients in the original Bmab 1000 arm will also go through the re-randomization procedure; however, they will continue to receive Bmab 1000. The interventions (Bmab 1000 or Prolia®) will be administered subcutaneously every 6 months. End-of-study visit will be at Week 78 post randomization (Month 18).

Conditions

Postmenopausal Women With Osteoporosis

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: DOUBLE

Study Groups

Bmab 1000

Group Type: EXPERIMENTAL

Bmab 1000

Intervention Type: BIOLOGICAL

60 mg administered as a single SC (subcutaneous) injection once every 6 months.

Prolia®:

Group Type: ACTIVE_COMPARATOR

Prolia®

Intervention Type: BIOLOGICAL

60 mg administered as a single SC injection once every 6 months

Interventions

Bmab 1000

60 mg administered as a single SC (subcutaneous) injection once every 6 months.

Intervention Type: BIOLOGICAL

Prolia®

60 mg administered as a single SC injection once every 6 months

Intervention Type: BIOLOGICAL

Eligibility Criteria

Inclusion Criteria

1. Postmenopausal women, aged ≥55 and <80 years at screening. Postmenopausal is defined as 12 months of spontaneous amenorrhea with serum FSH (follicle-stimulating hormone) levels ≥40 mIU/mL at screening or 6 weeks postsurgical bilateral oophorectomy with or without hysterectomy.

2. Evidence of osteoporosis as assessed by lumbar spine (L1-L4) absolute BMD corresponding to a T-score classification ≤-2.5 and ≥-4.0.

3. At least 3 vertebrae in the L1-L4 region and at least one hip joint are evaluable by DXA at screening.

4. Patients with body weight ≥50 to <90 kg at screening.

Exclusion Criteria

1. Patients with T-score of <-4.0 at the lumbar spine, total hip, or femoral neck.

2. Known history of previous exposure to denosumab (Prolia®, Xgeva®, or any biosimilar denosumab).

3. For prior or ongoing use of any osteoporosis treatment (other than calcium and vitamin D supplements) following points to be considered for the washout periods prior to the screening visit:

a. Oral bisphosphonate i. Ineligible if used for 3 or more years cumulatively ii. If used for <3 years, a gap of at least 1 year since the last dose is required at the screening visit b. Dose received any time

4. Systemic glucocorticosteroids

5. Patients with ongoing serious infections

6. Evidence of any of the following per the patient's history, DXA, or X-ray review and/or current disease:

1. Patient in bed rest for 2 or more weeks during the last 3 months prior to screening

2. Current hyperthyroidism or hypothyroidism

3. History and/or current hyperparathyroidism or hypoparathyroidism

4. Current hypocalcemia or hypercalcemia based on albumin-adjusted serum calcium

5. Any bone disease including bone metastasis or metabolic disease (except for osteoporosis), eg, osteomalacia or osteogenesis imperfecta, rheumatoid arthritis, Paget's disease, ALP (alkaline phosphatase) elevation (at investigator's discretion), Cushing's disease, clinically significant hyperprolactinemia (at investigator's discretion), fibrous dysplasia, malabsorption syndrome which may interfere with the interpretation of the results

6. History and/or presence of one severe or 3 or more moderate vertebral fractures

7. History and/or presence of hip fracture or bilateral hip replacement

8. Presence of an active healing fracture according to assessment of investigator

9. History of severe skeletal pain with bisphosphonates which, as per the investigator, is a risk to her participation in the trial

10. Oral/dental or periodontal conditions:

• Minimum Eligible Age: 55 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: No

Sponsors

Biocon Biologics UK Ltd

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

PPD Global Ltd, Granta Park, Great Abington,

Cambridge, UK, United Kingdom

Countries

United Kingdom

Provided Documents

Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

B1000-PMO-03-G-02

Identifier Type: -

Identifier Source: org_study_id