PK Study of Xevinapant (Debio 1143) in Healthy East Asian Participants

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the pharmacokinetics (PK) of Xevinapant (Debio 1143) and its metabolite D-1143-MET1 as well as safety and tolerability of Xevinapant (Debio 1143) in healthy East Asian participants.

Official Title
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A Single-dose, Open-label, Single Arm Study to Investigate PK of Xevinapant (Debio 1143) and Its Metabolite, D-1143-MET1 in Healthy East Asian Participants

Conditions
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Healthy

Intervention / Treatment
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* Drug: Xevinapant (Debio 1143)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy participant of Japanese or other East Asian origin. Group 1: Japanese participants must be first generation (born in Japan) with both biological parents and all 4 biological grandparents being Japanese native born, lived for less than (<)10 years outside of Japan, and have no significant change in lifestyle since leaving Japan. Group 2: Other non-Japanese East Asian participants must have both biological parents and 4 biological grandparents of East Asian descent, lived for <10 years outside of their countries, and have no significant change in lifestyle since leaving from there. East Asia includes Korea or Greater China Overtly healthy participants as determined by medical evaluation, including medical history, physical examination, laboratory tests, and cardiac monitoring (blood pressure, heart rate, and 12-lead resting ECG) Have a body weight within 50 and 110 kilograms [kg] (inclusive) and Body Mass Index (BMI) within the range 18.0 to 32.0 kilograms per meter square [Kg/m^2] (inclusive) Other protocol defined inclusion criteria could apply Exclusion Criteria: History of clinically relevant disease of any organ system that may interfere with the objectives of the study or provide a risk to the health of the participant History of relevant drug hypersensitivity, ascertained or presumptive allergy/ hypersensitivity to the active drug substance and/or formulation ingredients history of serious allergic reactions leading to hospitalization or any other allergy reaction in general, which the Investigator considers may affect the safety of the participant and/or outcome of the study Ongoing or active clinically significant viral (including Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)), bacterial or fungal infection, or any major episode of infection requiring hospitalization or treatment with parenteral anti-infectives less than or equal to (<=) 4 weeks prior to or during Screening Period, or completion of oral anti-infectives <= 2 weeks prior to Screening Visit. Vaginal candidiasis, onychomycosis, and genital or oral herpes simplex virus considered to be sufficiently controlled will not be exclusionary History of splenectomy History of any malignancy (hematologic or solid tumor) before the Screening Visit, except for adequately treated superficial basal cell carcinoma of the skin (no more than 3 lesions requiring treatment in lifetime) or carcinoma in situ/cervical intraepithelial neoplasia of the uterine cervix History of or a positive screening test for hepatitis B, hepatitis C, or human immunodeficiency virus type I and II Use of any investigational drug in any clinical study within 5 half-lives from last administration Other protocol defined exclusion criteria could apply

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 60 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: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Group 1: Japanese: Xevinapant (Debio 1143)<br> | Drug: Xevinapant (Debio 1143)<br>* All participants (Japanese and non-Japanese East Asian) will receive single oral dose of xevinapant (Debio 1143) on Day 1.<br>|
| Experimental: Group 2: Non-Japanese East Asian: Xevinapant (Debio 1143)<br> | Drug: Xevinapant (Debio 1143)<br>* All participants (Japanese and non-Japanese East Asian) will receive single oral dose of xevinapant (Debio 1143) on Day 1.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Area Under the Plasma Concentration-Time Curve from Time Zero to the Time of the Last Quantifiable Concentration (AUC0-tlast) of Xevinapant (Debio 1143) |  | Pre-dose up to 72 hours post-dose | 
| Area Under the Plasma Concentration-Time Curve (AUC) from Time Zero Extrapolated to Infinity (AUC0-inf) of Xevinapant (Debio 1143) |  | Pre-dose up to 72 hours post-dose | 
| Maximum Observed Plasma Concentration (Cmax) of Xevinapant (Debio 1143) |  | Pre-dose up to 72 hours post-dose | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of Participants with Treatment-Emergent Adverse Events (TEAEs) |  | up to Day 8 | 
| Number of Participants with Clinically Significant Changes from Baseline Laboratory Variables, Vital Signs and 12-Lead Electrocardiogram (ECG) Measurements |  | up to end of treatment (Day 4) | 
| Pharmacokinetic (PK) Plasma Concentrations of Xevinapant (Debio 1143) |  | Pre-dose up to 72 hours post-dose | 
| Pharmacokinetic (PK) Plasma Concentrations of Metabolite D-1143-MET1 |  | Pre-dose up to 72 hours post-dose | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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East Asian, Japanese, Pharmacokinetic, Ethnic sensitivity