Study to Compare the Pharmacokinetics, Pharmacodynamics, Safety, Tolerability, and Immunogenicity of Biosimilar Denosumab With Prolia® in Healthy Adult Male Volunteers

NCT ID: NCT05245669

Last Updated: 2025-12-23

Study Results

Results available

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

View full results

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

207 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-01-10

Study Completion Date

2024-05-22

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This is a randomized, double-blind, three-arm, parallel-group, single-dose study to demonstrate bioequivalence of ENZ215 and EU- and US-sourced Prolia after a single 60-mg dose administered subcutaneously in healthy adult male volunteers.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Approximately 207 subjects will be enrolled into 3 groups (69 in each group) in parallel. The subjects may be enrolled in multiple groups at the site. All eligible subjects will be assigned to one of the three treatment groups in 1:1:1 ratio i.e. ENZ215 or US-sourced Prolia® or EU-sourced Prolia® to enter into the study period of 39 weeks. The study duration will be approximately 16 months (i.e. 6 months of recruitment period, 4 weeks of screening period and approximately 39 weeks (270 days) of study period).

Each subject will be required to visit the site for a total of 20 visits: visit 1 - screening visit, visit 2 - day 0 to day 2, visit 3 - day 3, visit 4 - day 4, visit 5 - day 5, visit 6 - day 6, visit 7 - day 8, visit 8 - day 10, visit 9 - day 12, visit 10 - day 16, visit 11 - day 21, visit 12 - day 28 (week 4), visit 13 - day 42 (week 6), visit 14 - day 63 (week 9), visit 15 - day 90 (week 13), visit 16 - day 119 (week 17), visit 17 - day 147 (week 21), visit 18 - day 180 (week 26), visit 19 day - 224 (week 32), and visit 20 - day 270 (week 39). A window period of ±1 day is allowed for visit 12 (day 28), window period of ±3 days are allowed from day 42 (week 6) to day 180 (week 26), A window period of ±5 days are allowed from day 224 (week 32) to day 270 (week 39).

End of Study Assessment will be performed on day 270 (week 39) or at the time of early discontinuation of the subject.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Healthy Male Subjects

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Arm 1: ENZ215 Arm 2 : EU Sourced Prolia Arm 3: US Sourced Prolia
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

ENZ215

ENZ215 Injection:- 60 mg Denosumab (ENZ215) will be administered subcutaneously on day 1.

Group Type EXPERIMENTAL

ENZ215

Intervention Type BIOLOGICAL

healthy volunteers receive ENZ215 (60mg) once

EU Sourced Prolia

EU sourced Prolia Injection:- 60 mg Denosumab (EU sourced Prolia) will be administered subcutaneously on day 1.

Group Type ACTIVE_COMPARATOR

EU Sourced Prolia

Intervention Type BIOLOGICAL

healthy volunteers receive Denosumab (60mg) once

US Sourced Prolia

US sourced Prolia Injection:- 60 mg Denosumab (US sourced Prolia) will be administered subcutaneously on day 1.

Group Type ACTIVE_COMPARATOR

US Sourced Prolia

Intervention Type BIOLOGICAL

healthy volunteers receive Denosumab (60mg) once

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

ENZ215

healthy volunteers receive ENZ215 (60mg) once

Intervention Type BIOLOGICAL

EU Sourced Prolia

healthy volunteers receive Denosumab (60mg) once

Intervention Type BIOLOGICAL

US Sourced Prolia

healthy volunteers receive Denosumab (60mg) once

Intervention Type BIOLOGICAL

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

The subjects will be included in the study based on the following criteria:

1. Able to understand and give written, voluntary informed consent for the study
2. Healthy adult male volunteers between 28 to 55 years of age (both inclusive)
3. Body Mass Index (BMI) ≥ 18.50 and ≤ 30.00 kg/m2 at the time of screening
4. Medically healthy with no clinically significant medical history, vital signs, physical examination, and laboratory profiles
5. Normal or clinically acceptable 12-lead electrocardiogram, QT interval corrected for heart rate (QTc interval)\* ≤ 450 msec at the time of screening
6. Subjects with negative alcohol test (breath analyzer or any suitable test) at the time of screening and admission (pre-dose)
7. Male subjects with female partners who agree to use effective contraception during study#
8. Male subjects who agree not to donate sperm during study
9. Willing and able to comply with the protocol requirements
10. Willing for multiple sampling and admission at the phase 1 study site day before dosing.

* Note: QTc interval will be calculated using the Bazette and Fridericia formula.

* Effective contraception: A non-vasectomised Male volunteers with female partners of child bearing potential should use dual method of contraception i.e. condom with spermicide method of contraception.

Female partners should use hormonal or non-hormonal method of contraception. (No restrictions are required for a vasectomised male provided his vasectomy has been performed 4 months or more prior to the first dosing. A male who has been vasectomised less than 4 months prior to the first dosing must follow the same restrictions as a non-vasectomised male).

Exclusion Criteria

The subjects will be excluded from the study based on the following criteria:

1. Known hypersensitivity to Denosumab or to any of the components of the study drug
2. Participating or has received any investigational drug (or is currently using an investigational device) within 30 days before receiving the study drug, or at least 10 times the respective elimination halflife (whichever period is longer) \*

3. A serious infection (associated with housing and/or required intravenous anti-infectives) within 6 months before study drug administration and/or any active infection within 4 weeks of screening requiring oral or systemic antibiotics
4. History of significant drug abuse within 12 months before screening or a use of soft drugs (such as marijuana) within 3 months before the screening visit or hard drugs (such as cocaine, phencyclidine, and crack etc.) within 12 months before screening
5. Smokers who smoke ≥ 10 cigarettes or equivalent per day within 90 days prior to screening
6. Subjects with positive urine screen for drugs of abuse at the time of screening or check-in
7. Subjects with Urine Cotinine \> 500ng/ml at the time of screening or check-in
8. Subjects with risk of osteonecrosis of the jaw i.e. poor oral hygiene, periodontal disease, poorly fitting dentures, history of dental disease or have undergone invasive dental procedures e.g. tooth extractions within last 6 months prior to screening.
9. Subjects with a predictable risk of invasive dental surgery during the 9 months after dosing or with planned invasive dental procedure
10. Subjects with known bone disease or recent fracture or abnormalities of calcium metabolism
11. Loss of blood (excluding volume drawn at screening) of 50 mL to 499 mL within 30 days, or more than 499 mL within 56 days before dosing
12. History of immunodeficiency (including those subjects with a positive test for human immunodeficiency virus \[HIV\] at screening)
13. Have a positive result for hepatitis B antigen test (HBsAg) or hepatitis C antibody test (HCAb), or show evidence of possible infection
14. Major surgical procedure within 28 days of dose of investigational product.
15. Male subjects having pregnant female partner at the time of screening.
16. Subject with a history of recurrent or chronic infections
17. Received live vaccines within 4 weeks or who may require live vaccine(s) during the study duration
18. Prior use of denosumab
19. Have previously been exposed to a monoclonal antibody or fusion protein within 270 days (other than denosumab) prior to randomisation and/or there is confirmed evidence or clinical suspicion of immunogenicity from previous exposure to a monoclonal antibody or fusion protein.
20. Any reason/condition which would preclude subject's participation in the study as per the Investigator's opinion or warnings and contraindications in the prescribing information of Prolia
21. Subjects with suspected signs and symptoms of COVID-19/confirmed novel coronavirus infection (COVID-19).
Minimum Eligible Age

28 Years

Maximum Eligible Age

55 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Alkem Laboratories Ltd

INDUSTRY

Sponsor Role collaborator

Enzene Biosciences Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Dr. Nadine Abdullah

Role: PRINCIPAL_INVESTIGATOR

Celerion GB Ltd.

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

MC Comac Medical

Sofia, Sofia City Province, Bulgaria

Site Status

MTZ Clinical Research powered by Pratia, Pratia S.A

Warsaw, , Poland

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United Kingdom Bulgaria Poland

Provided Documents

Download supplemental materials such as informed consent forms, study protocols, or participant manuals.

Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2021-004177-32

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

ALK22/ENZ215-DEN1

Identifier Type: -

Identifier Source: org_study_id