A Study to Compare the Blood Level of Bimekizumab Injected Subcutaneously Either by a Prefilled Syringe or by an Auto-injector in Adult Healthy Volunteer Participants

Study Overview
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Brief Summary
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The purpose of the study is to evaluate the pharmakokinetics (PK), safety, tolerability, and immunogenicity of bimekizumab (BKZ) when administered subcutaneously (sc) via 3 different BKZ delivery devices in healthy participants.

Official Title
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An Open-Label, Multicenter, Randomized, Parallel-Group, 3-Arm, Single-Dose Bioequivalence Study of Bimekizumab Injected Subcutaneously Either by a Prefilled Syringe or by an Auto-Injector in Adult Healthy Participants

Conditions
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Healthy Volunteers

Intervention / Treatment
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* Drug: Bimekizumab


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Participant is male or female aged >=18 years and <=55 years at Screening Visit Participant must be in good health (physically and mentally) as determined by the Investigator based on medical history (any chronic and acute illness), physical examination, vital signs, 12-lead electrocardiogram (ECG), and laboratory screening tests during the Screening Period Participant has a body mass index (BMI) of 18-32 kg/m2 and a minimum body weight of 50 kg for male participants and 45 kg for female participants, and a maximum body weight of 100 kg for all participants Participant is willing to abstain from alcohol-, tobacco-, and caffeine-containing products for 48 h prior to admission into the clinic and during the entire in-clinic stay Exclusion Criteria: Subject has an active infection (except common cold), a serious infection, or a history of opportunistic, recurrent or chronic infections Participant has a history of a positive tuberculosis (TB) test or evidence of possible TB or latent TB infection at Screening Visit Participant has concurrent acute or chronic viral hepatitis B or C or human immunodeficiency virus (HIV) infection Female participant who is pregnant, or plans to become pregnant during the study, or lactating, or sexually active with childbearing potential who is not using a medically accepted birth control method Participants receiving any live (includes attenuated) vaccination within the 8 weeks prior to Screening visit (eg, inactivated influenza and pneumococcal vaccines are allowed but nasal influenza vaccination is not permitted). Live vaccines are not allowed during the study or for 20 weeks after the last dose of the IMP Participant has any medical or psychiatric condition that, in the opinion of the Investigator, could jeopardize or would compromise the participant's ability to participate in this study Participant has active neoplastic disease or history of neoplastic disease within 5 years of Screening Visit (except for basal or squamous cell carcinoma of the skin or carcinoma in situ that has been definitively treated with standard of care)

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 55 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Bimekizumab-SS<br>Subjects randomized to this arm will receive bimekizumab administered subcutaneously with a prefilled syringe. | Drug: Bimekizumab<br>* Subjects will receive a pre-specified sequence of bimekzumab in the Treatment Period.<br>* Other names: UCB4940;|
| Experimental: Bimekizumab-AI<br>Subjects randomized to this arm will receive bimekizumab administered subcutaneously with an auto-injector. | Drug: Bimekizumab<br>* Subjects will receive a pre-specified sequence of bimekzumab in the Treatment Period.<br>* Other names: UCB4940;|
| Experimental: Bimekizumab-TN<br>Subjects randomized to this arm will receive bimekizumab administered subcutaneously with a reference device. | Drug: Bimekizumab<br>* Subjects will receive a pre-specified sequence of bimekzumab in the Treatment Period.<br>* Other names: UCB4940;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Maximum observed bimekizumab (BKZ) plasma drug concentration (Cmax) | The Cmax is the maximum plasma drug concentration of BKZ observed from pharmacokinetic samples taken at predefined time points. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Area under the BKZ plasma concentration-time curve from time zero to last quantifiable concentration (AUCt) | The AUCt is the area under the plasma concentration-time curve from time zero to last quantifiable concentration (AUCt) of BKZ as determined using the linear trapezoidal rule. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Area under the BKZ plasma concentration-time curve from time zero to infinity (AUC) | The area under the plasma concentration-time curve from time zero to infinity (AUC) of BKZ is calculated as AUC=AUCt+Clast/lambdaz, where Clast is the last quantifiable plasma concentration and λz is the apparent terminal elimination rate constant. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Percentage of subjects with at least one Adverse Event (AE) from first bimekizumab (BKZ) dose up to Safety Follow Up | An Adverse Event (AE) is any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product, which does not necessarily have a causal relationship with this treatment. An AE could therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the medicinal (investigational) product. | From Baseline to Safety Follow Up (up to Day 140) | 
| Percentage of subjects with at least one Serious Adverse Event (SAE) from first bimekizumab (BKZ) dose up to Safety Follow Up | A Serious Adverse Event (SAE) is any untoward medical occurrence that at any dose: Results in death Is life-threatening Requires in patient hospitalization or prolongation of existing hospitalization Is a congenital anomaly or birth defect Is as infection that requires treatment parenteral antibiotics Other important medical events which based on medical or scientific judgement may jeopardize the patients, or may require medical or surgical intervention to prevent any of the above | From Baseline to Safety Follow Up (up to Day 140) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of the AUC extrapolated from the last quantifiable BKZ plasma concentration (%AUCex) | The percentage of the AUC extrapolated from the last quantifiable BKZ plasma concentration (Clast) is computed from plasma concentrations of pharmacokinetic samples taken at predefined time points. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Time of occurrence of the maximum observed BKZ plasma drug concentration (tmax) | Tmax is the time to reach maximum plasma concentration. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Apparent terminal half-life (t1/2) | Apparent terminal half-life, reported in units of days, as determined via simple linear regression (slope=-lambdaz) of natural log (ln) concentration versus time for data points in the terminal phase of the concentration-time curve. t1/2 is calculated as ln2/lambdaz. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Apparent terminal elimination rate constant (lambdaz) | The lambdaz is the rate constant of elimination. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Total body plasma clearance for BKZ (CL/F) | The total body clearance (CL/F) for BKZ will be calculated as Dose/AUC. Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the plasma. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Volume of distribution for BKZ (Vz/F) | Volume of distribution (Vz/F) for BKZ will be calculated as CL/lambdaz. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Time to last quantifiable BKZ plasma concentration (tmin) | Tmin is the time to last quantifiable plasma concentration for BKZ. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 
| Incidence of Anti-drug-antibodies (ADABs) | Anti-drug-antibodies (ADABs) will be determined from blood samples taken at predefined timepoints. | From Baseline (Day 1 pre-dose) at predefined time points (up to Day 140) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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BKZ, UCB4940, Auto-Injector, Healthy Participants