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A Study of Lazertinib in Participants With Epidermal Growth Factor Receptor (EGFR) Mutation Positive Advanced Non-Small Cell Lung Cancer (NSCLC)

A Phase I/II, Open-Label, Multicenter Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Anti-Tumor Activity of YH25448 in Patients With EGFR Mutation Positive Advanced Non-Small Cell Lung Cancer (NSCLC)

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04075396
Enrollment
29
Registered
2019-08-30
Start date
2019-10-16
Completion date
2022-11-14
Last updated
2025-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Carcinoma, Non-Small-Cell Lung

Brief summary

The main purpose of this study is to evaluate the safety, tolerability, and pharmacokinetics (PK) of Lazertinib when given orally to participants with epidermal growth factor receptor single activating mutation positive (EGFRm+) locally advanced or metastatic Non Small Cell Lung Cancer (NSCLC).

Detailed description

One-third of all cancer deaths worldwide are still caused by lung cancer and non-small-cell lung cancer (NSCLC). Lazertinib is an oral, highly potent, mutant-selective and irreversible epidermal growth factor receptor (EGFR) Tyrosine kinase inhibitor (TKIs) targets both the T790M mutation and activating EGFR mutations while sparing wild type-EGFR. The study will be conducted in participants with EGFR mutation positive advanced non-small cell lung cancer (NSCLC). Study Parts A, B, and C are sponsored by Yuhan Corporation under protocol identifier YH25448-201 (ClinicalTrials.gov Identifier: NCT03046992), and Study Part D is sponsored by Janssen Research and Development, LLC under protocol identifier 73841937NSC2001. In Part D, Lazertinib will be given to participants outside Korea, including Caucasians, in order to evaluate safety, tolerability, efficacy (including tumor response) and Pharmacokinetics (PK) in participants outside of Korea. The duration of this study will be up to 2 years. Study treatment should be held in all participants with suspected (symptomatic) or documented severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) positive disease, until recovery from all infection related symptoms, and documented to be negative for SARS-CoV-2.

Interventions

DRUGLazertinib

Participants will receive Lazertinib tablets once daily.

Sponsors

Yuhan Corporation
CollaboratorINDUSTRY
Janssen Research & Development, LLC
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Females should agree to use adequate contraceptive measure, should not be breast feeding and must have a negative pregnancy test prior to start of dosing if of child-bearing potential or must have evidence of non-child-bearing potential by fulfilling one of following criteria at screening; Post-menopausal defined as aged more than 50 years and ameorrhoeic for at least 12 months following cessation of all exogenous hormonal treatments; Documentation of irreversible surgical sterilization by hysterectomy, bilateral oophorectomy or bilateral salpingectomy but not tubal ligation; Women under 50 years old would be considered postmenopausal if they have been ameorrhoeic for at least 12 months following cessation of exogenous hormonal treatment, and have serum follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels in postmenopausal range for the institution * Male participants who have not undergone a vasectomy must agree to use barrier contraception that is, condoms, and refrain from donating sperm until 3 months after last drug is taken * During the study, and for 3 months after receiving the last dose of study drug, female participants must agree not to donate eggs (ova, oocytes) and male participants must agree not to donate sperm for the purposes of assisted reproduction * In Part D: Participants outside Korea with histologically or cytologically (that is, using pleural effusion, ascites) confirmed Non-Small Cell Lung Cancer (NSCLC) with previously diagnosed epidermal growth factor receptor single activating mutation positive (EGFRm+), and who have had progressive disease on prior epidermal growth factor receptor- Tyrosine kinase inhibitor (EGFR-TKI) therapy * Eastern Cooperative Oncology Group (ECOG) performance status 0 to 1 with no deterioration over the previous 2 weeks and a minimum life expectancy of 3 months

Exclusion criteria

* An unapproved investigational product from another clinical study within 30 days of the first dose of study treatment * Treatment with an EGFR TKIs (example: erlotinib or gefitinib) within 8 days or approximately 5x half-life, whichever is the longer, of the first dose of study treatment or other investigational products within approved indication of marketed product (if sufficient wash-out time has not occurred due to schedule or PK properties, an alternative appropriate wash-out time based on known duration of time to reversibility of drug related adverse events could be agreed upon by sponsor and the Investigator) * Any cytotoxic chemotherapy or other anticancer drugs for the treatment of advanced NSCLC from a previous treatment regimen within 14 days of the first dose of study treatment * Symptomatic spinal cord compression (if steroid treatment is not required within at least 2 weeks prior to the start of the study treatment then the participant may be enrolled) * Brain metastases with symptomatic and/or requiring emergency treatment (example; Steroid for at least 2 weeks prior to start of study treatment)

Design outcomes

Primary

MeasureTime frameDescription
Part D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 15Pre-dose on Day 15 of Cycle 1Ctrough was defined as pre-dose plasma concentration. Ctrough for multiple dose of lazertinib at Cycle 1 Day 15 was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Number of Participants With Treatment-emergent Adverse Events (TEAEs)From Day 1 up to 14 monthsAn adverse event (AE) is any untoward medical occurrence in a clinical study participant administered a medicinal (investigational or non-investigational) product. An AE does not necessarily have a causal relationship with the intervention. TEAEs were defined as AEs that started on or after the first dose of study medication and prior to 28-day follow-up period. All TEAEs including serious and non-serious events are reported in this outcome measure.
Part D: Number of Participants With Clinically Significant Abnormalities in Physical ExaminationFrom Day 1 up to 14 monthsNumber of participants with clinically significant abnormalities in physical examination were reported. Physical examination included general appearance, skin, head and neck (including ears, eyes, nose and throat), respiratory, cardiovascular, abdomen, lymph nodes, thyroid, muscular-skeletal (including spine and extremities) and neurological systems. Baseline was defined as last non-missing measurement taken prior to reference start date.
Part D: Number of Participants With Greater Than or Equal to (>=) Grade 4 Toxicity in Laboratory Tests Based on National Cancer Institute Common Toxicity Criteria for Adverse Events (NCI CTCAE) Version (v) 4.03From Day 1 up to 14 monthsSafety laboratory assessments included clinical chemistry, hematology and urinalysis. Grading was done as per NCI CTCAE version 4.03: Grade 1 = mild; Grade 2 = moderate; Grade 3 = severe; Grade 4 = life-threatening; Grade 5 = death. Baseline was defined as last non-missing measurement taken prior to reference start date.
Part D: Number of Participants With Clinically Significant Abnormalities in Electrocardiogram (ECG) TestsFrom Day 1 up to 14 monthsNumber of participants with clinically significant abnormalities in electrocardiogram (ECG) tests were reported. ECG variables included heart rate, PR interval, RR interval, QRS interval, QT interval and Fridericia-corrected QT interval (QTcF). Baseline was defined as last non-missing measurement taken prior to reference start date.
Part D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC[0-last]) for Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0AUC(0-last) was defined as area under the plasma concentration-time curve from time zero to time of last quantifiable concentration. AUC(0-last) for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) method.
Part D: Area Under the Plasma Concentration Time Curve From Time Zero to Infinite Time (AUC[0-Infinity]) for Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0AUC(0-infinity) was defined as area under the plasma concentration time curve from time zero to infinite time. AUC(0-infinity) for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Area Under the Plasma Concentration Time Curve From Time Zero to 24 Hours (AUC[0-24]) for Single Dose of LazertinibPre-dose, 1, 2, 4, 10 and 24 hours post-dose on Day 1 of Cycle 0AUC(0-24) was defined as area under the plasma concentration time curve from time zero to 24 hours. AUC(0-24) for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Maximum Observed Plasma Concentration (Cmax) for Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0Cmax was defined as maximum observed plasma concentration. Cmax for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Time to Reach Maximum Observed Plasma Concentration (Tmax) for Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0Tmax was defined as time to reach the maximum observed plasma concentration. Tmax for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Apparent Terminal Half-Life (t1/2) for Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0T1/2 was defined the time measured for the plasma concentration of a drug to decrease by half of its initial concentration. T1/2 for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Apparent Terminal Elimination Rate Constant (Lambda[z]) for Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0Lambda(z) was defined as terminal elimination rate constant. Lambda(z) for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Apparent Plasma Clearance (CL/F) for Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0CL/F was defined as apparent plasma clearance. CL/F for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Apparent Volume of Distribution (Vd/F) for Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0Vd/F was defined as apparent volume of distribution. Vd/F for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the End of Dosing Interval at Steady State (AUCss[0-last]) for Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2AUCss(0-last) was defined as area under the plasma concentration time curve from time zero to end of dosing interval at steady state. AUCss(0-last) for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Maximum Observed Plasma Concentration at Steady State (Cmax,ss) for Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2Cmax,ss was defined as maximum observed plasma concentration at steady state. Cmax,ss for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Time to Reach Maximum Observed Plasma Concentration at Steady State (Tmax,ss) for Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2Tmax,ss was defined as time to reach maximum observed plasma concentration at steady state. Tmax,ss for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Accumulation Ratio (Rac) for Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2Accumulation ratio was calculated as AUCss(0-last) divided by AUC(0-24), where AUCss(0-last) was defined as area under the plasma concentration time curve from time zero to end of dosing interval at steady state and AUC(0-24) was defined area under the plasma concentration time curve from time zero to 24 hours time. Rac for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Apparent Plasma Clearance at Steady State (CLss/F) for Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2CLss/F was defined as apparent plasma clearance at steady state. CLss/F for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 1Pre-dose on Day 1 of Cycle 1Ctrough was defined as pre-dose plasma concentration. Ctrough for multiple dose of lazertinib at Cycle 1 Day 1 was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 8Pre-dose on Day 8 of Cycle 1Ctrough was defined as pre-dose plasma concentration. Ctrough for multiple dose of lazertinib at Cycle 1 Day 8 was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Number of Participants With Clinically Significant Abnormalities in Vital SignsFrom Day 1 up to 14 monthsNumber of participants with clinically significant abnormalities in vital signs were reported. Vital signs included pulse rate, systolic blood pressure, diastolic blood pressure, body temperature, height, weight, and body mass index (BMI). Baseline was defined as last non-missing measurement taken prior to reference start date.

Secondary

MeasureTime frameDescription
Part D: Area Under the Plasma Concentration Time Curve From Time Zero to Infinite Time (AUC[0-Infinity]) of Metabolite M7 After Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0AUC(0-infinity) was defined as area under the plasma concentration time curve from time zero to infinite time. AUC(0-infinity) of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Area Under the Plasma Concentration Time Curve From Time Zero to 24 Hours (AUC[0-24]) of Metabolite M7 After Single Dose of LazertinibPre-dose, 1, 2, 4, 10 and 24 hours post-dose on Day 1 of Cycle 0AUC(0-24) was defined as area under the plasma concentration time curve from time zero to 24 hours. AUC(0-24) of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Maximum Observed Plasma Concentration (Cmax) of Metabolite M7 After Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0Cmax was defined as maximum observed plasma concentration. Cmax of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Time to Reach Maximum Observed Plasma Concentration (Tmax) of Metabolite M7 After Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0Tmax was defined as time to reach the maximum observed plasma concentration. Tmax of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Apparent Terminal Half-Life (t1/2) of Metabolite M7 After Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0T1/2 was defined the time measured for the plasma concentration of a drug to decrease by half of its initial concentration. T1/2 of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Apparent Terminal Elimination Rate Constant (Lambda [z]) of Metabolite M7 After Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0Lambda(z) was defined as terminal elimination rate constant. Lambda(z) of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Metabolic Ratio (MR) of Metabolite M7 and Lazertinib After Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0MR was defined as ratio of the AUC(0-infinity) of metabolite M7 and AUC(0-infinity) of lazertinib, where AUC(0-infinity) was defined as area under the plasma concentration time curve from time zero to infinite time. The concentrations of metabolite M7 and lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the End of Dosing Interval at Steady State (AUCss[0-last]) of Metabolite M7 After Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2AUCss(0-last) was defined as area under the plasma concentration-time curve from time zero to time of the end of dosing interval at steady state. AUCss(0-last) of metabolite M7 after multiple dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Maximum Observed Plasma Concentration at Steady State (Cmax,ss) of Metabolite M7 After Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2Cmax,ss was defined as maximum observed plasma concentration at steady state. Cmax,ss of metabolite M7 after multiple dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Time to Reach Maximum Observed Plasma Concentration at Steady State (Tmax,ss) of Metabolite M7 After Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2Tmax,ss was defined as time to reach the maximum observed plasma concentration at steady state. Tmax,ss of metabolite M7 after multiple dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Accumulation Ratio (Rac) of Metabolite M7 After Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2Accumulation ratio was calculated as AUCss(0-last) divided by AUC(0-24), where AUCss(0-last) was defined as area under the plasma concentration time curve from time zero to end of dosing interval at steady state and AUC(0-24) was defined area under the plasma concentration time curve from time zero to 24 hours. Rac of metabolite M7 after multiple dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Trough Concentrations (Ctrough) of Metabolite M7 After Multiple Dose of Lazertinib at Days 1, 8 and 15 of Cycle 1Pre-dose on Days 1, 8 and 15 of Cycle 1Ctrough was defined as pre-dose plasma concentration. Ctrough of Metabolite M7 after multiple dose of lazertinib at Days 1, 8 and 15 of Cycle 1 was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.
Part D: Metabolic Ratio at Steady State (MRss) of Metabolite M7 and Lazertinib After Multiple Dose of LazertinibPre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2MRss was defined as ratio of the AUCss(0-last) of metabolite M7 and AUCss(0-last) of lazertinib, where AUCss(0-last) was defined as area under the plasma concentration time curve from time zero to time of end of dosing interval at steady state. The concentrations of metabolite M7 and lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.
Objective Response Rate (ORR)Up to 33.7 monthsORR was defined as percentage of participants who had at least 1 confirmed partial or complete response (PR or CR) as per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 prior to disease progression or recurrence. CR was defined as disappearance of target and non-target lesions and normalization of tumor markers. Pathological lymph nodes must have short axis measures less than (\<) 10 millimeter (mm). PR was defined as greater than or equal to (\>=) 30 percent (%) decrease in sum of measures (longest diameter for tumor lesions and short axis measure for nodes) of target lesions, taking as reference baseline sum of diameters. Non-target lesions must be non-progressive disease (PD). PD was defined as \>=20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to relative 20% increase, sum must also demonstrate an absolute increase of \>=5 mm. Appearance of one or more new lesions was considered progression.
Duration of Response (DoR)Up to 33.7 monthsDOR was defined as time between date of first documented confirmed response (PR/CR) and date of first documented progression or death, whichever occurred first. CR was defined as disappearance of target and non-target lesions and normalization of tumour markers. Pathological lymph nodes short axis measures \<10 mm. PR was defined as \>=30% decrease in sum of measures (tumour lesions-longest diameter and nodes-short axis)of target lesions, taking as reference baseline sum of diameters. PD was defined as \>=20% increase in sum of diameters of measured lesions taking as references smallest sum of diameters recorded on study(including baseline), absolute increase of \>=5 mm/appearance of at least 1 new lesion. Unequivocal progression of existing non-target lesions.
Disease Control Rate (DCR)Up to 33.7 monthsDCR was defined as percentage of participants with a best overall response (BOR), extracranial and intracranial response of CR, PR or stable disease (SD). As per RECIST version 1.1 CR was defined as disappearance of target and non-target lesions and normalization of tumor markers. Pathological lymph nodes must have short axis measures \<10 mm. PR was defined as \>=30% decrease in sum of measures (longest diameter for tumor lesions and short axis measure for nodes) of target lesions, taking as reference baseline sum of diameters. Non-target lesions must be non-PD. PD was defined as \>=20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to relative 20% increase, sum must also demonstrate \>=5 mm absolute increase. Appearance of one or more new lesions was considered progression. SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD.
Percentage Change From Baseline in Tumor SizeBaseline up to 33.7 monthsTumor size was defined as the sum lengths of the longest diameters of the target lesion. Percentage change in tumor size was determined for participants with measurable disease at baseline. Baseline for RECIST version 1.1 was defined as the last evaluable assessment prior to starting treatment.
Progression Free Survival (PFS)Up to 33.7 monthsPFS was defined as the time from the date of first dose of study drug to the earliest date of disease progression per RECIST version 1.1, or death due to any cause, whichever occurs first. PD was defined as at least 20% increase in the sum of diameters of measured lesions taking as references the smallest sum of diameters recorded on study (including baseline) and an absolute increase of \>=5 mm or appearance of at least 1 new lesion.
Overall Survival (OS)Up to 33.7 monthsOS was defined as the time from the date of first dose to date of death due to any cause.
Part D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC[0-last]) of Metabolite M7 After Single Dose of LazertinibPre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0AUC(0-last) was defined as area under the plasma concentration-time curve from time zero to time of last quantifiable concentration. AUC(0-last) of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Countries

Spain, United Kingdom, United States

Participant flow

Pre-assignment details

Study Parts A, B, and C were sponsored by Yuhan Corporation under protocol identifier (ID) YH25448-201 and Part D was sponsored by Janssen Research and Development, LLC under protocol ID 73841937NSC2001. Therefore, only Part D results are reported.

Participants by arm

ArmCount
Lazertinib 240 mg
Participants with EGFRm+ advanced NSCLC with or without asymptomatic brain metastasis received lazertinib tablet at a dose of 240 mg orally on Day 1 of Cycle 0, which spans 7 days, followed by a once daily dose in each subsequent 21-day treatment cycle, for a maximum duration of up to 32.7 months. Participants were then followed up for safety for 28 days after the last dose of study treatment.
15
Lazertinib 320 mg
Participants with EGFRm+ advanced NSCLC with or without asymptomatic brain metastasis received lazertinib tablet at a dose of 320 mg orally on Day 1 of Cycle 0, which spans 7 days, followed by a once daily dose in each subsequent 21-day treatment cycle, for a maximum duration of up to 8.3 months. Participants were then followed up for safety for 28 days after the last dose of study treatment.
13
Total28

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath119
Overall StudyEnrolled but not-treated01
Overall StudyParticipants did not complete the 28 days follow-up after implementation of protocol amendment 1132
Overall StudyWithdrawal by Subject12

Baseline characteristics

CharacteristicLazertinib 320 mgTotalLazertinib 240 mg
Age, Continuous63 years
STANDARD_DEVIATION 12.48
61.7 years
STANDARD_DEVIATION 11.72
60.6 years
STANDARD_DEVIATION 11.35
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants3 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
11 Participants25 Participants14 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Number of prior lines of therapy
<= 4 Lines
4 Participants12 Participants8 Participants
Number of prior lines of therapy
> 4 Lines
9 Participants16 Participants7 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants4 Participants3 Participants
Race (NIH/OMB)
Black or African American
1 Participants1 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants3 Participants1 Participants
Race (NIH/OMB)
White
9 Participants20 Participants11 Participants
Region of Enrollment
SPAIN
8 Participants18 Participants10 Participants
Region of Enrollment
UNITED KINGDOM
1 Participants1 Participants0 Participants
Region of Enrollment
UNITED STATES
4 Participants9 Participants5 Participants
Sex: Female, Male
Female
8 Participants17 Participants9 Participants
Sex: Female, Male
Male
5 Participants11 Participants6 Participants
Weight group
>= 80 kg
2 Participants4 Participants2 Participants
Weight group
< 80 kilograms (kg)
10 Participants23 Participants13 Participants
Weight group
Not Reported
1 Participants1 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
11 / 159 / 13
other
Total, other adverse events
15 / 1511 / 13
serious
Total, serious adverse events
10 / 156 / 13

Outcome results

Primary

Part D: Accumulation Ratio (Rac) for Multiple Dose of Lazertinib

Accumulation ratio was calculated as AUCss(0-last) divided by AUC(0-24), where AUCss(0-last) was defined as area under the plasma concentration time curve from time zero to end of dosing interval at steady state and AUC(0-24) was defined area under the plasma concentration time curve from time zero to 24 hours time. Rac for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Accumulation Ratio (Rac) for Multiple Dose of Lazertinib2.26 RatioStandard Deviation 0.61
Lazertinib 320 mgPart D: Accumulation Ratio (Rac) for Multiple Dose of Lazertinib2.36 RatioStandard Deviation 1.08
Primary

Part D: Apparent Plasma Clearance at Steady State (CLss/F) for Multiple Dose of Lazertinib

CLss/F was defined as apparent plasma clearance at steady state. CLss/F for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Apparent Plasma Clearance at Steady State (CLss/F) for Multiple Dose of Lazertinib44.25 Liters per hour (L/h)Standard Deviation 21.39
Lazertinib 320 mgPart D: Apparent Plasma Clearance at Steady State (CLss/F) for Multiple Dose of Lazertinib50.10 Liters per hour (L/h)Standard Deviation 37.21
Primary

Part D: Apparent Plasma Clearance (CL/F) for Single Dose of Lazertinib

CL/F was defined as apparent plasma clearance. CL/F for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Apparent Plasma Clearance (CL/F) for Single Dose of Lazertinib41.92 Liters per hour (L/h)Standard Deviation 15.56
Lazertinib 320 mgPart D: Apparent Plasma Clearance (CL/F) for Single Dose of Lazertinib39.38 Liters per hour (L/h)Standard Deviation 12.96
Primary

Part D: Apparent Terminal Elimination Rate Constant (Lambda[z]) for Single Dose of Lazertinib

Lambda(z) was defined as terminal elimination rate constant. Lambda(z) for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Apparent Terminal Elimination Rate Constant (Lambda[z]) for Single Dose of Lazertinib0.02 Per hour (1/h)Standard Deviation 0.01
Lazertinib 320 mgPart D: Apparent Terminal Elimination Rate Constant (Lambda[z]) for Single Dose of Lazertinib0.01 Per hour (1/h)Standard Deviation 0
Primary

Part D: Apparent Terminal Half-Life (t1/2) for Single Dose of Lazertinib

T1/2 was defined the time measured for the plasma concentration of a drug to decrease by half of its initial concentration. T1/2 for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)Dispersion
Lazertinib 240 mgPart D: Apparent Terminal Half-Life (t1/2) for Single Dose of Lazertinib51.12 HoursFull Range 18.75
Lazertinib 320 mgPart D: Apparent Terminal Half-Life (t1/2) for Single Dose of Lazertinib63.98 HoursFull Range 52.3
Primary

Part D: Apparent Volume of Distribution (Vd/F) for Single Dose of Lazertinib

Vd/F was defined as apparent volume of distribution. Vd/F for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Apparent Volume of Distribution (Vd/F) for Single Dose of Lazertinib2990.36 LitersStandard Deviation 1188.45
Lazertinib 320 mgPart D: Apparent Volume of Distribution (Vd/F) for Single Dose of Lazertinib3822.19 LitersStandard Deviation 984.29
Primary

Part D: Area Under the Plasma Concentration Time Curve From Time Zero to 24 Hours (AUC[0-24]) for Single Dose of Lazertinib

AUC(0-24) was defined as area under the plasma concentration time curve from time zero to 24 hours. AUC(0-24) for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10 and 24 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to 24 Hours (AUC[0-24]) for Single Dose of Lazertinib3253.58 h*ng/mLStandard Deviation 916.67
Lazertinib 320 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to 24 Hours (AUC[0-24]) for Single Dose of Lazertinib4097.34 h*ng/mLStandard Deviation 1261.96
Primary

Part D: Area Under the Plasma Concentration Time Curve From Time Zero to Infinite Time (AUC[0-Infinity]) for Single Dose of Lazertinib

AUC(0-infinity) was defined as area under the plasma concentration time curve from time zero to infinite time. AUC(0-infinity) for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to Infinite Time (AUC[0-Infinity]) for Single Dose of Lazertinib6504.88 h*ng/mLStandard Deviation 2542.12
Lazertinib 320 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to Infinite Time (AUC[0-Infinity]) for Single Dose of Lazertinib8869.21 h*ng/mLStandard Deviation 2642.17
Primary

Part D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the End of Dosing Interval at Steady State (AUCss[0-last]) for Multiple Dose of Lazertinib

AUCss(0-last) was defined as area under the plasma concentration time curve from time zero to end of dosing interval at steady state. AUCss(0-last) for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the End of Dosing Interval at Steady State (AUCss[0-last]) for Multiple Dose of Lazertinib7025.10 h*ng/mLStandard Deviation 4181.22
Lazertinib 320 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the End of Dosing Interval at Steady State (AUCss[0-last]) for Multiple Dose of Lazertinib9249.58 h*ng/mLStandard Deviation 4924.51
Primary

Part D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC[0-last]) for Single Dose of Lazertinib

AUC(0-last) was defined as area under the plasma concentration-time curve from time zero to time of last quantifiable concentration. AUC(0-last) for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: Pharmacokinetic (PK) analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC[0-last]) for Single Dose of Lazertinib5907.56 Hour*nanograms per milliliter (h*ng/mL)Standard Deviation 2218.84
Lazertinib 320 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC[0-last]) for Single Dose of Lazertinib7664.99 Hour*nanograms per milliliter (h*ng/mL)Standard Deviation 2057.13
Primary

Part D: Maximum Observed Plasma Concentration at Steady State (Cmax,ss) for Multiple Dose of Lazertinib

Cmax,ss was defined as maximum observed plasma concentration at steady state. Cmax,ss for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Maximum Observed Plasma Concentration at Steady State (Cmax,ss) for Multiple Dose of Lazertinib509.92 ng/mLStandard Deviation 236.66
Lazertinib 320 mgPart D: Maximum Observed Plasma Concentration at Steady State (Cmax,ss) for Multiple Dose of Lazertinib632.00 ng/mLStandard Deviation 279.88
Primary

Part D: Maximum Observed Plasma Concentration (Cmax) for Single Dose of Lazertinib

Cmax was defined as maximum observed plasma concentration. Cmax for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Maximum Observed Plasma Concentration (Cmax) for Single Dose of Lazertinib441.04 Nanograms per milliliter (ng/mL)Standard Deviation 135.45
Lazertinib 320 mgPart D: Maximum Observed Plasma Concentration (Cmax) for Single Dose of Lazertinib524.13 Nanograms per milliliter (ng/mL)Standard Deviation 271.58
Primary

Part D: Number of Participants With Clinically Significant Abnormalities in Electrocardiogram (ECG) Tests

Number of participants with clinically significant abnormalities in electrocardiogram (ECG) tests were reported. ECG variables included heart rate, PR interval, RR interval, QRS interval, QT interval and Fridericia-corrected QT interval (QTcF). Baseline was defined as last non-missing measurement taken prior to reference start date.

Time frame: From Day 1 up to 14 months

Population: The safety analysis population included all participants who received at least 1 dose of IP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Lazertinib 240 mgPart D: Number of Participants With Clinically Significant Abnormalities in Electrocardiogram (ECG) Tests1 Participants
Lazertinib 320 mgPart D: Number of Participants With Clinically Significant Abnormalities in Electrocardiogram (ECG) Tests1 Participants
Primary

Part D: Number of Participants With Clinically Significant Abnormalities in Physical Examination

Number of participants with clinically significant abnormalities in physical examination were reported. Physical examination included general appearance, skin, head and neck (including ears, eyes, nose and throat), respiratory, cardiovascular, abdomen, lymph nodes, thyroid, muscular-skeletal (including spine and extremities) and neurological systems. Baseline was defined as last non-missing measurement taken prior to reference start date.

Time frame: From Day 1 up to 14 months

Population: The safety analysis population included all participants who received at least 1 dose of IP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Lazertinib 240 mgPart D: Number of Participants With Clinically Significant Abnormalities in Physical Examination8 Participants
Lazertinib 320 mgPart D: Number of Participants With Clinically Significant Abnormalities in Physical Examination2 Participants
Primary

Part D: Number of Participants With Clinically Significant Abnormalities in Vital Signs

Number of participants with clinically significant abnormalities in vital signs were reported. Vital signs included pulse rate, systolic blood pressure, diastolic blood pressure, body temperature, height, weight, and body mass index (BMI). Baseline was defined as last non-missing measurement taken prior to reference start date.

Time frame: From Day 1 up to 14 months

Population: The safety analysis population included all participants who received at least 1 dose of IP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Lazertinib 240 mgPart D: Number of Participants With Clinically Significant Abnormalities in Vital Signs0 Participants
Lazertinib 320 mgPart D: Number of Participants With Clinically Significant Abnormalities in Vital Signs0 Participants
Primary

Part D: Number of Participants With Greater Than or Equal to (>=) Grade 4 Toxicity in Laboratory Tests Based on National Cancer Institute Common Toxicity Criteria for Adverse Events (NCI CTCAE) Version (v) 4.03

Safety laboratory assessments included clinical chemistry, hematology and urinalysis. Grading was done as per NCI CTCAE version 4.03: Grade 1 = mild; Grade 2 = moderate; Grade 3 = severe; Grade 4 = life-threatening; Grade 5 = death. Baseline was defined as last non-missing measurement taken prior to reference start date.

Time frame: From Day 1 up to 14 months

Population: The safety analysis population included all participants who received at least 1 dose of IP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Lazertinib 240 mgPart D: Number of Participants With Greater Than or Equal to (>=) Grade 4 Toxicity in Laboratory Tests Based on National Cancer Institute Common Toxicity Criteria for Adverse Events (NCI CTCAE) Version (v) 4.032 Participants
Lazertinib 320 mgPart D: Number of Participants With Greater Than or Equal to (>=) Grade 4 Toxicity in Laboratory Tests Based on National Cancer Institute Common Toxicity Criteria for Adverse Events (NCI CTCAE) Version (v) 4.030 Participants
Primary

Part D: Number of Participants With Treatment-emergent Adverse Events (TEAEs)

An adverse event (AE) is any untoward medical occurrence in a clinical study participant administered a medicinal (investigational or non-investigational) product. An AE does not necessarily have a causal relationship with the intervention. TEAEs were defined as AEs that started on or after the first dose of study medication and prior to 28-day follow-up period. All TEAEs including serious and non-serious events are reported in this outcome measure.

Time frame: From Day 1 up to 14 months

Population: The safety analysis population included all participants who received at least 1 dose of investigational product (IP).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Lazertinib 240 mgPart D: Number of Participants With Treatment-emergent Adverse Events (TEAEs)15 Participants
Lazertinib 320 mgPart D: Number of Participants With Treatment-emergent Adverse Events (TEAEs)13 Participants
Primary

Part D: Time to Reach Maximum Observed Plasma Concentration at Steady State (Tmax,ss) for Multiple Dose of Lazertinib

Tmax,ss was defined as time to reach maximum observed plasma concentration at steady state. Tmax,ss for multiple dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)Dispersion
Lazertinib 240 mgPart D: Time to Reach Maximum Observed Plasma Concentration at Steady State (Tmax,ss) for Multiple Dose of Lazertinib3.15 HoursFull Range 1.75
Lazertinib 320 mgPart D: Time to Reach Maximum Observed Plasma Concentration at Steady State (Tmax,ss) for Multiple Dose of Lazertinib3.97 HoursFull Range 2.22
Primary

Part D: Time to Reach Maximum Observed Plasma Concentration (Tmax) for Single Dose of Lazertinib

Tmax was defined as time to reach the maximum observed plasma concentration. Tmax for single dose of lazertinib was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)Dispersion
Lazertinib 240 mgPart D: Time to Reach Maximum Observed Plasma Concentration (Tmax) for Single Dose of Lazertinib2.00 HoursFull Range 0.92
Lazertinib 320 mgPart D: Time to Reach Maximum Observed Plasma Concentration (Tmax) for Single Dose of Lazertinib2.50 HoursFull Range 1.07
Primary

Part D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 1

Ctrough was defined as pre-dose plasma concentration. Ctrough for multiple dose of lazertinib at Cycle 1 Day 1 was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose on Day 1 of Cycle 1

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 16.41 ng/mLStandard Deviation 4.55
Lazertinib 320 mgPart D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 110.91 ng/mLStandard Deviation 5.99
Primary

Part D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 15

Ctrough was defined as pre-dose plasma concentration. Ctrough for multiple dose of lazertinib at Cycle 1 Day 15 was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose on Day 15 of Cycle 1

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 15177.40 ng/mLStandard Deviation 99.23
Lazertinib 320 mgPart D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 15263.74 ng/mLStandard Deviation 145.61
Primary

Part D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 8

Ctrough was defined as pre-dose plasma concentration. Ctrough for multiple dose of lazertinib at Cycle 1 Day 8 was reported in this outcome measure. The concentrations of lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose on Day 8 of Cycle 1

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 8154.62 ng/mLStandard Deviation 87.6
Lazertinib 320 mgPart D: Trough Concentrations (Ctrough) for Multiple Dose of Lazertinib at Cycle 1 Day 8225.47 ng/mLStandard Deviation 168.22
Secondary

Disease Control Rate (DCR)

DCR was defined as percentage of participants with a best overall response (BOR), extracranial and intracranial response of CR, PR or stable disease (SD). As per RECIST version 1.1 CR was defined as disappearance of target and non-target lesions and normalization of tumor markers. Pathological lymph nodes must have short axis measures \<10 mm. PR was defined as \>=30% decrease in sum of measures (longest diameter for tumor lesions and short axis measure for nodes) of target lesions, taking as reference baseline sum of diameters. Non-target lesions must be non-PD. PD was defined as \>=20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to relative 20% increase, sum must also demonstrate \>=5 mm absolute increase. Appearance of one or more new lesions was considered progression. SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD.

Time frame: Up to 33.7 months

Population: Evaluable for response population included all participants in safety analysis population who had a baseline RECIST version 1.1 assessment.

ArmMeasureValue (NUMBER)Dispersion
Lazertinib 240 mgDisease Control Rate (DCR)60.0 Percentage of participants95% Confidence Interval 35.2
Lazertinib 320 mgDisease Control Rate (DCR)53.8 Percentage of participants95% Confidence Interval 26.7
Secondary

Duration of Response (DoR)

DOR was defined as time between date of first documented confirmed response (PR/CR) and date of first documented progression or death, whichever occurred first. CR was defined as disappearance of target and non-target lesions and normalization of tumour markers. Pathological lymph nodes short axis measures \<10 mm. PR was defined as \>=30% decrease in sum of measures (tumour lesions-longest diameter and nodes-short axis)of target lesions, taking as reference baseline sum of diameters. PD was defined as \>=20% increase in sum of diameters of measured lesions taking as references smallest sum of diameters recorded on study(including baseline), absolute increase of \>=5 mm/appearance of at least 1 new lesion. Unequivocal progression of existing non-target lesions.

Time frame: Up to 33.7 months

Population: Evaluable for response population included all participants in safety analysis population who had a baseline RECIST version 1.1 assessment. Here 'N' (number of participants analyzed) refers to number of participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)
Lazertinib 240 mgDuration of Response (DoR)NA Months
Lazertinib 320 mgDuration of Response (DoR)2.8 Months
Secondary

Objective Response Rate (ORR)

ORR was defined as percentage of participants who had at least 1 confirmed partial or complete response (PR or CR) as per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 prior to disease progression or recurrence. CR was defined as disappearance of target and non-target lesions and normalization of tumor markers. Pathological lymph nodes must have short axis measures less than (\<) 10 millimeter (mm). PR was defined as greater than or equal to (\>=) 30 percent (%) decrease in sum of measures (longest diameter for tumor lesions and short axis measure for nodes) of target lesions, taking as reference baseline sum of diameters. Non-target lesions must be non-progressive disease (PD). PD was defined as \>=20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to relative 20% increase, sum must also demonstrate an absolute increase of \>=5 mm. Appearance of one or more new lesions was considered progression.

Time frame: Up to 33.7 months

Population: Evaluable for response population included all participants in safety analysis population who had a baseline RECIST version 1.1 assessment.

ArmMeasureValue (NUMBER)Dispersion
Lazertinib 240 mgObjective Response Rate (ORR)26.7 Percentage of participants95% Confidence Interval 4.3
Lazertinib 320 mgObjective Response Rate (ORR)7.7 Percentage of participants95% Confidence Interval 0
Secondary

Overall Survival (OS)

OS was defined as the time from the date of first dose to date of death due to any cause.

Time frame: Up to 33.7 months

Population: The safety analysis population included all participants who received at least 1 dose of IP. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)Dispersion
Lazertinib 240 mgOverall Survival (OS)9.1 MonthsFull Range 2.6
Lazertinib 320 mgOverall Survival (OS)7.7 MonthsFull Range 3.4
Secondary

Part D: Accumulation Ratio (Rac) of Metabolite M7 After Multiple Dose of Lazertinib

Accumulation ratio was calculated as AUCss(0-last) divided by AUC(0-24), where AUCss(0-last) was defined as area under the plasma concentration time curve from time zero to end of dosing interval at steady state and AUC(0-24) was defined area under the plasma concentration time curve from time zero to 24 hours. Rac of metabolite M7 after multiple dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Accumulation Ratio (Rac) of Metabolite M7 After Multiple Dose of Lazertinib1.976 RatioStandard Deviation 0.617
Lazertinib 320 mgPart D: Accumulation Ratio (Rac) of Metabolite M7 After Multiple Dose of Lazertinib2.270 RatioStandard Deviation 1.3
Secondary

Part D: Apparent Terminal Elimination Rate Constant (Lambda [z]) of Metabolite M7 After Single Dose of Lazertinib

Lambda(z) was defined as terminal elimination rate constant. Lambda(z) of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Apparent Terminal Elimination Rate Constant (Lambda [z]) of Metabolite M7 After Single Dose of Lazertinib0.017 Per hour (1/h)Standard Deviation 0.008
Lazertinib 320 mgPart D: Apparent Terminal Elimination Rate Constant (Lambda [z]) of Metabolite M7 After Single Dose of Lazertinib0.021 Per hour (1/h)Standard Deviation 0.016
Secondary

Part D: Apparent Terminal Half-Life (t1/2) of Metabolite M7 After Single Dose of Lazertinib

T1/2 was defined the time measured for the plasma concentration of a drug to decrease by half of its initial concentration. T1/2 of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)Dispersion
Lazertinib 240 mgPart D: Apparent Terminal Half-Life (t1/2) of Metabolite M7 After Single Dose of Lazertinib41.205 HoursFull Range 18.042
Lazertinib 320 mgPart D: Apparent Terminal Half-Life (t1/2) of Metabolite M7 After Single Dose of Lazertinib50.019 HoursFull Range 13.256
Secondary

Part D: Area Under the Plasma Concentration Time Curve From Time Zero to 24 Hours (AUC[0-24]) of Metabolite M7 After Single Dose of Lazertinib

AUC(0-24) was defined as area under the plasma concentration time curve from time zero to 24 hours. AUC(0-24) of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10 and 24 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to 24 Hours (AUC[0-24]) of Metabolite M7 After Single Dose of Lazertinib86.692 h*ng/mLStandard Deviation 52.492
Lazertinib 320 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to 24 Hours (AUC[0-24]) of Metabolite M7 After Single Dose of Lazertinib74.523 h*ng/mLStandard Deviation 33.137
Secondary

Part D: Area Under the Plasma Concentration Time Curve From Time Zero to Infinite Time (AUC[0-Infinity]) of Metabolite M7 After Single Dose of Lazertinib

AUC(0-infinity) was defined as area under the plasma concentration time curve from time zero to infinite time. AUC(0-infinity) of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to Infinite Time (AUC[0-Infinity]) of Metabolite M7 After Single Dose of Lazertinib281.172 h*ng/mLStandard Deviation 144.163
Lazertinib 320 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to Infinite Time (AUC[0-Infinity]) of Metabolite M7 After Single Dose of Lazertinib263.373 h*ng/mLStandard Deviation 166.254
Secondary

Part D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the End of Dosing Interval at Steady State (AUCss[0-last]) of Metabolite M7 After Multiple Dose of Lazertinib

AUCss(0-last) was defined as area under the plasma concentration-time curve from time zero to time of the end of dosing interval at steady state. AUCss(0-last) of metabolite M7 after multiple dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the End of Dosing Interval at Steady State (AUCss[0-last]) of Metabolite M7 After Multiple Dose of Lazertinib148.335 h*ng/mLStandard Deviation 89.794
Lazertinib 320 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the End of Dosing Interval at Steady State (AUCss[0-last]) of Metabolite M7 After Multiple Dose of Lazertinib168.765 h*ng/mLStandard Deviation 159.476
Secondary

Part D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC[0-last]) of Metabolite M7 After Single Dose of Lazertinib

AUC(0-last) was defined as area under the plasma concentration-time curve from time zero to time of last quantifiable concentration. AUC(0-last) of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC[0-last]) of Metabolite M7 After Single Dose of Lazertinib216.350 h*ng/mLStandard Deviation 126.357
Lazertinib 320 mgPart D: Area Under the Plasma Concentration Time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC[0-last]) of Metabolite M7 After Single Dose of Lazertinib208.908 h*ng/mLStandard Deviation 128.968
Secondary

Part D: Maximum Observed Plasma Concentration at Steady State (Cmax,ss) of Metabolite M7 After Multiple Dose of Lazertinib

Cmax,ss was defined as maximum observed plasma concentration at steady state. Cmax,ss of metabolite M7 after multiple dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Maximum Observed Plasma Concentration at Steady State (Cmax,ss) of Metabolite M7 After Multiple Dose of Lazertinib7.866 ng/mLStandard Deviation 4.213
Lazertinib 320 mgPart D: Maximum Observed Plasma Concentration at Steady State (Cmax,ss) of Metabolite M7 After Multiple Dose of Lazertinib8.319 ng/mLStandard Deviation 7.418
Secondary

Part D: Maximum Observed Plasma Concentration (Cmax) of Metabolite M7 After Single Dose of Lazertinib

Cmax was defined as maximum observed plasma concentration. Cmax of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Maximum Observed Plasma Concentration (Cmax) of Metabolite M7 After Single Dose of Lazertinib5.838 ng/mLStandard Deviation 3.946
Lazertinib 320 mgPart D: Maximum Observed Plasma Concentration (Cmax) of Metabolite M7 After Single Dose of Lazertinib4.774 ng/mLStandard Deviation 2.257
Secondary

Part D: Metabolic Ratio at Steady State (MRss) of Metabolite M7 and Lazertinib After Multiple Dose of Lazertinib

MRss was defined as ratio of the AUCss(0-last) of metabolite M7 and AUCss(0-last) of lazertinib, where AUCss(0-last) was defined as area under the plasma concentration time curve from time zero to time of end of dosing interval at steady state. The concentrations of metabolite M7 and lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Metabolic Ratio at Steady State (MRss) of Metabolite M7 and Lazertinib After Multiple Dose of Lazertinib0.021 RatioStandard Deviation 0.006
Lazertinib 320 mgPart D: Metabolic Ratio at Steady State (MRss) of Metabolite M7 and Lazertinib After Multiple Dose of Lazertinib0.016 RatioStandard Deviation 0.009
Secondary

Part D: Metabolic Ratio (MR) of Metabolite M7 and Lazertinib After Single Dose of Lazertinib

MR was defined as ratio of the AUC(0-infinity) of metabolite M7 and AUC(0-infinity) of lazertinib, where AUC(0-infinity) was defined as area under the plasma concentration time curve from time zero to infinite time. The concentrations of metabolite M7 and lazertinib were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Metabolic Ratio (MR) of Metabolite M7 and Lazertinib After Single Dose of Lazertinib0.042 RatioStandard Deviation 0.022
Lazertinib 320 mgPart D: Metabolic Ratio (MR) of Metabolite M7 and Lazertinib After Single Dose of Lazertinib0.027 RatioStandard Deviation 0.015
Secondary

Part D: Time to Reach Maximum Observed Plasma Concentration at Steady State (Tmax,ss) of Metabolite M7 After Multiple Dose of Lazertinib

Tmax,ss was defined as time to reach the maximum observed plasma concentration at steady state. Tmax,ss of metabolite M7 after multiple dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose up to 1, 2, 4, 10 and 24 hours post dose on Day 1 of Cycle 2

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)Dispersion
Lazertinib 240 mgPart D: Time to Reach Maximum Observed Plasma Concentration at Steady State (Tmax,ss) of Metabolite M7 After Multiple Dose of Lazertinib6.330 HoursFull Range 2.25
Lazertinib 320 mgPart D: Time to Reach Maximum Observed Plasma Concentration at Steady State (Tmax,ss) of Metabolite M7 After Multiple Dose of Lazertinib4.350 HoursFull Range 3.93
Secondary

Part D: Time to Reach Maximum Observed Plasma Concentration (Tmax) of Metabolite M7 After Single Dose of Lazertinib

Tmax was defined as time to reach the maximum observed plasma concentration. Tmax of metabolite M7 after single dose of lazertinib was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose, 1, 2, 4, 10, 24 and 48 hours post-dose on Day 1 of Cycle 0

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)Dispersion
Lazertinib 240 mgPart D: Time to Reach Maximum Observed Plasma Concentration (Tmax) of Metabolite M7 After Single Dose of Lazertinib4.020 HoursFull Range 2.07
Lazertinib 320 mgPart D: Time to Reach Maximum Observed Plasma Concentration (Tmax) of Metabolite M7 After Single Dose of Lazertinib4.150 HoursFull Range 3.08
Secondary

Part D: Trough Concentrations (Ctrough) of Metabolite M7 After Multiple Dose of Lazertinib at Days 1, 8 and 15 of Cycle 1

Ctrough was defined as pre-dose plasma concentration. Ctrough of Metabolite M7 after multiple dose of lazertinib at Days 1, 8 and 15 of Cycle 1 was reported in this outcome measure. The concentrations of metabolite M7 were measured using a validated, specific, and sensitive LC-MS/MS method.

Time frame: Pre-dose on Days 1, 8 and 15 of Cycle 1

Population: PK analysis population included all participants who had at least 1 measurable concentration collected post dose. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure. Here 'n' (number analyzed) refers to all participants evaluable at specified time points.

ArmMeasureGroupValue (MEAN)Dispersion
Lazertinib 240 mgPart D: Trough Concentrations (Ctrough) of Metabolite M7 After Multiple Dose of Lazertinib at Days 1, 8 and 15 of Cycle 1Day 1 Cycle 10.257 ng/mLStandard Deviation 0.237
Lazertinib 240 mgPart D: Trough Concentrations (Ctrough) of Metabolite M7 After Multiple Dose of Lazertinib at Days 1, 8 and 15 of Cycle 1Day 8 Cycle 14.928 ng/mLStandard Deviation 3.005
Lazertinib 240 mgPart D: Trough Concentrations (Ctrough) of Metabolite M7 After Multiple Dose of Lazertinib at Days 1, 8 and 15 of Cycle 1Day 15 Cycle 15.356 ng/mLStandard Deviation 3.604
Lazertinib 320 mgPart D: Trough Concentrations (Ctrough) of Metabolite M7 After Multiple Dose of Lazertinib at Days 1, 8 and 15 of Cycle 1Day 1 Cycle 10.358 ng/mLStandard Deviation 0.321
Lazertinib 320 mgPart D: Trough Concentrations (Ctrough) of Metabolite M7 After Multiple Dose of Lazertinib at Days 1, 8 and 15 of Cycle 1Day 8 Cycle 15.791 ng/mLStandard Deviation 4.65
Lazertinib 320 mgPart D: Trough Concentrations (Ctrough) of Metabolite M7 After Multiple Dose of Lazertinib at Days 1, 8 and 15 of Cycle 1Day 15 Cycle 16.340 ng/mLStandard Deviation 4.741
Secondary

Percentage Change From Baseline in Tumor Size

Tumor size was defined as the sum lengths of the longest diameters of the target lesion. Percentage change in tumor size was determined for participants with measurable disease at baseline. Baseline for RECIST version 1.1 was defined as the last evaluable assessment prior to starting treatment.

Time frame: Baseline up to 33.7 months

Population: Evaluable for response population included all participants in safety analysis population who had a baseline RECIST version 1.1 assessment. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Lazertinib 240 mgPercentage Change From Baseline in Tumor Size-5.37 Percentage change in tumor sizeStandard Deviation 37.68
Lazertinib 320 mgPercentage Change From Baseline in Tumor Size9.56 Percentage change in tumor sizeStandard Deviation 42.89
Secondary

Progression Free Survival (PFS)

PFS was defined as the time from the date of first dose of study drug to the earliest date of disease progression per RECIST version 1.1, or death due to any cause, whichever occurs first. PD was defined as at least 20% increase in the sum of diameters of measured lesions taking as references the smallest sum of diameters recorded on study (including baseline) and an absolute increase of \>=5 mm or appearance of at least 1 new lesion.

Time frame: Up to 33.7 months

Population: The safety analysis population included all participants who received at least 1 dose of IP. Here 'N' (number of participants analyzed) refers to the number of participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)Dispersion
Lazertinib 240 mgProgression Free Survival (PFS)3.1 MonthsFull Range 1.3
Lazertinib 320 mgProgression Free Survival (PFS)4.2 MonthsFull Range 0

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026