Multicenter Study in Postmenopausal Women With Osteoporosis, ALVOBOND

NCT ID: NCT05395091

Last Updated: 2025-05-29

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

532 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-23

Study Completion Date

2024-10-28

Brief Summary

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This is a randomized, double-blind, parallel design, repeat dose, 2 arm, multicenter study comparing the efficacy, safety, immunogenicity, pharmacodynamic (PD) and pharmacokinetic (PK) profiles of AVT03 and US-Prolia in postmenopausal women with osteoporosis.

Detailed Description

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After the screening activities, eligible subjects were randomized to receive either AVT03 60 mg or Prolia® 60 mg, administered as a subcutaneous (s.c.) injection on Day 1 and at Month 6. At Month 12, subjects in AVT03 treatment group will received a third dose of AVT03 60 mg administered s.c. while subjects in Prolia® treatment group will were be re-randomized 1:1 to receive either Prolia 60 mg or AVT03 60 mg administered as a subcutaneous injection.

Afterwards, the subjects will be followed until the End of Study (EoS) Visit.

Conditions

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Osteoporosis, Postmenopausal

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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AVT03

AVT03 is the proposed biosimilar for Prolia.

Group Type EXPERIMENTAL

AVT03

Intervention Type BIOLOGICAL

AVT03 (denosumab) is a recombinant fully human IgG2 monoclonal antibody to RANKL to be administered as a subcutaneous injection. Subjects in this arm received AVT03 60mg administered s.c. on Day 1 and at Month 6. At Month 12, subjects in the AVT03 arm received a third dose of AVT03 60 mg.

Prolia

Group Type ACTIVE_COMPARATOR

Denosumab

Intervention Type BIOLOGICAL

Prolia (denosumab) is a recombinant fully human IgG2 monoclonal antibody to RANKL developed to be administered as a subcutaneous injection.

Subjects in this arm received 60mg of commercially available US-Prolia, administered s.c on Day 1 and at Month 6. At Month 12, subjects in the Prolia treatment group were re-randomized in a 1:1 ratio to receive either:

* AVT03 60 mg administered s.c. on Day365.
* Prolia 60 mg administered s.c. on Day365.

Interventions

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AVT03

AVT03 (denosumab) is a recombinant fully human IgG2 monoclonal antibody to RANKL to be administered as a subcutaneous injection. Subjects in this arm received AVT03 60mg administered s.c. on Day 1 and at Month 6. At Month 12, subjects in the AVT03 arm received a third dose of AVT03 60 mg.

Intervention Type BIOLOGICAL

Denosumab

Prolia (denosumab) is a recombinant fully human IgG2 monoclonal antibody to RANKL developed to be administered as a subcutaneous injection.

Subjects in this arm received 60mg of commercially available US-Prolia, administered s.c on Day 1 and at Month 6. At Month 12, subjects in the Prolia treatment group were re-randomized in a 1:1 ratio to receive either:

* AVT03 60 mg administered s.c. on Day365.
* Prolia 60 mg administered s.c. on Day365.

Intervention Type BIOLOGICAL

Other Intervention Names

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Prolia

Eligibility Criteria

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Exclusion Criteria

1. Evidence of clinically relevant pathology, especially prior diagnosis of bone disease, or any uncontrolled condition that will affect bone metabolism
2. History and/or presence of 1 severe or more than 1 moderate vertebral fractures confirmed by x-ray.
3. History of hip fracture
4. Presence of active healing fractures
5. Osteonecrosis of the jaw (ONJ) or risk factors for ONJ such as invasive dental procedures
6. Evidence of hypo/hypercalcemia at Screening
7. Known vitamin D deficiency
8. Known intolerance to calcium and vitamin D supplement.
Minimum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Alvotech Swiss AG

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Felicitas Bullo

Role: STUDY_DIRECTOR

Alvotech Swiss AG

Locations

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Investigational Site 3501

Plovdiv, , Bulgaria

Site Status

Investigational Site 3503

Plovdiv, , Bulgaria

Site Status

Investigational Site 3502

Stara Zagora, , Bulgaria

Site Status

Investigational Site 4201

Prague, , Czechia

Site Status

Investigational Site 4202

Uherské Hradiště, , Czechia

Site Status

Investigational Site 9901

Tbilisi, , Georgia

Site Status

Investigational Site 9902

Tbilisi, , Georgia

Site Status

Investigational Site 9903

Tbilisi, , Georgia

Site Status

Investigational Site 9904

Tbilisi, , Georgia

Site Status

Investigational Site 9905

Tbilisi, , Georgia

Site Status

Investigational Site 9906

Tbilisi, , Georgia

Site Status

Investigational Site 4803

Bialystok, , Poland

Site Status

Investigational Site 4804

Bialystok, , Poland

Site Status

Investigational Site 4802

Krakow, , Poland

Site Status

Investigational Site 4807

Krakow, , Poland

Site Status

Investigational Site 4806

Lodz, , Poland

Site Status

Investigational Site 4811

Lublin, , Poland

Site Status

Investigational Site 4812

Poznan, , Poland

Site Status

Investigational Site 4801

Skierniewice, , Poland

Site Status

Investigational Site 4805

Świdnik, , Poland

Site Status

Investigational Site 4809

Warsaw, , Poland

Site Status

Investigational Site 4810

Zamość, , Poland

Site Status

Investigational Site 2705

Bloemfontein, , South Africa

Site Status

Investigational Site 2714

Cape Town, , South Africa

Site Status

Investigational Site 2707

Centurion, , South Africa

Site Status

Investigational Site 2708

Centurion, , South Africa

Site Status

Investigational Site 2710

Groenkloof, , South Africa

Site Status

Investigational Site 2712

Johannesburg, , South Africa

Site Status

Investigational Site 2702

KwaDukuza, , South Africa

Site Status

Investigational Site 2711

Parow, , South Africa

Site Status

Investigational Site 2701

Port Elizabeth, , South Africa

Site Status

Investigational Site 2706

Pretoria, , South Africa

Site Status

Investigational Site 2713

Pretoria, , South Africa

Site Status

Investigational Site 2703

Worcester, , South Africa

Site Status

Countries

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Bulgaria Czechia Georgia Poland South Africa

References

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Lortkipanidze M, de Villiers T, Kania G, Bullo F, Jaskiewicz L, Stamatakos S, Rai M, Haliduola H, Otto H, Sattar A, Leutz S, Berti F. A randomized, double blind, parallel design, repeat dose, 2-arm, multicenter study comparing the efficacy, safety, immunogenicity, and pharmacokinetic profiles of a denosumab biosimilar, AVT03, in postmenopausal women with osteoporosis. Expert Opin Biol Ther. 2025 Aug;25(8):899-912. doi: 10.1080/14712598.2025.2538609. Epub 2025 Jul 28.

Reference Type DERIVED
PMID: 40698538 (View on PubMed)

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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AVT03-GL-C01

Identifier Type: -

Identifier Source: org_study_id

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