A Study to Assess the Effects of Itraconazole and Rifampin on Lazertinib in Healthy Adult Participants

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the effects of multiple doses of strong cytochrome P450 (CYP) 3A4 inhibitor itraconazole and strong CYP3A4 inducer rifampin on the single dose pharmacokinetics (PK) of lazertinib in healthy adult participants.

Official Title
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A Phase 1 Open-Label, Fixed-Sequence Drug-Drug Interaction Study to Evaluate the Effects of Steady-state Itraconazole and Rifampin on the Single-dose Pharmacokinetics of Lazertinib Tablets in Healthy Adult Participants

Conditions
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Healthy

Intervention / Treatment
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* Drug: Lazertinib
* Drug: Itraconazole
* Drug: Rifampin


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: A woman must not be of childbearing potential and must have a negative serum beta-human chorionic gonadotropin (Beta HCG) pregnancy test at screening Hormone replacement therapy (if applicable) must have been discontinued at least 28 days prior to the first dose of study drug (Cohort 2 only) Participants must have a body mass index (BMI) between 18.0 and 32.0 kilogram per meter square (kg/m^2, inclusive (BMI = weight/height^2), and body weight not less than 50 kg at screening Participants must be healthy based on physical examination, medical history, and vital signs (pulse and body temperature), performed at screening Male participants must agree to use an adequate contraception method Exclusion Criteria: History of or current clinically significant medical illness that the investigator considers should exclude the participant or that could interfere with the interpretation of the study results History of infection suspected or confirmed to be related to Coronavirus disease 2019 (COVID-19) within 4 weeks before intake of study drug Participant has known allergies, hypersensitivity, or intolerance to lazertinib or its excipients or to itraconazole and rifampin Participant has contraindications to the use itraconazole and rifampin per local prescribing information Use of any cytochrome P450 (CYP) 3A4 inhibitors or inducers (other than per-protocol itraconazole/rifampin administration) within 4 weeks before the first dose of the study drug is scheduled until completion of the study

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: Other
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Cohort 1: Lazertinib plus Itraconazole<br>Participants will receive a single oral dose of lazertinib tablets in Treatment Period 1 followed by itraconazole capsules orally along with a single oral dose of lazertinib tablet in Treatment Period 2. | Drug: Lazertinib<br>* Lazertinib tablets will be administered orally.<br>* Other names: JNJ-73841937; YH25448;Drug: Itraconazole<br>* Itraconazole capsules will be administered orally.<br>|
| Experimental: Cohort 2: Lazertinib plus Rifampin<br>Participants will receive a single oral dose of lazertinib tablets in Treatment Period 1 followed by rifampin capsules orally along with a single oral dose of lazertinib tablet in Treatment Period 2. | Drug: Lazertinib<br>* Lazertinib tablets will be administered orally.<br>* Other names: JNJ-73841937; YH25448;Drug: Rifampin<br>* Rifampin capsules will be administered orally.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Cohort 1 and 2: Maximum Plasma Concentration (Cmax) of Lazertinib | Cmax is defined as maximum plasma concentration. | Predose up to 120 hours post dose | 
| Cohort 1 and 2: Area Under the Plasma Concentration-time Curve from Time 0 to 120 Hours (AUC [0-120h]) of Lazertinib | AUC (0-120h) is defined as area under the plasma concentration-time curve from time 0 to 120 hours postdose. | Predose up to 120 hours post dose | 
| Cohort 1 and 2: Area Under the Plasma Concentration-time Curve from Time Zero to Time of Last Quantifiable Timepoint (AUC [0-last]) of Lazertinib | AUC (0-last) is defined as area under the plasma concentration-time curve from time 0 to time of last quantifiable timepoint. | Predose up to 120 hours post dose | 
| Cohort 1 and 2: Area Under the Plasma Concentration-time Curve from Time Zero to Infinity (AUC [0-inf]) of Lazertinib | AUC (0-inf) is defined as area under the plasma concentration-time curve from time 0 to infinity, calculated as the sum of AUC(0-last)+C(last)/ lambda(z), where C(last) is the last observed measurable (non-below limit of quantification) concentration. | Predose up to 120 hours post dose | 
| Cohort 1 and 2: Percentage of Area Under the Plasma Concentration from time Zero to Infinite time obtained by Extrapolation (%AUC [0-inf],ex) of Lazertinib | %AUC (0-inf),ex is defined as percentage of area under the plasma concentration from time zero to infinite time obtained by extrapolation, calculated as (AUC [0-infinity] minus AUC [0-last]/AUC [0-infinity])*100. | Predose up to 120 hours post dose | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Cohort 1 and Cohort 2: Number of Participants with Adverse Events (AEs) as a Measure of Safety and Tolerability | An AE is any untoward medical occurrence in a clinical study participant administered a investigational or non investigational medicinal product. An AE does not necessarily have a causal relationship with the treatment. | Up to 65 days (Cohort 1) and up to 70 days (Cohort 2) |