ClinicalTrials.gg
Not yet recruitingNCT05716672Updated Feb 8, 2023

Impact of Lazertinib Dose Modification on Effectiveness and Safety

An observational study in Non-small Cell Lung Cancer, sponsored by Pusan National University Hospital. Not yet recruiting at 11 sites in Korea, Republic of. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2023-02-08.

Sponsored by Pusan National University Hospital · Observational

From the registry’s dates

  • Primary completion was expected by Dec 2025, 10 months ago, but the record still lists the study as not yet recruiting.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
200
Ages
20 Years and older
Sex
All
01

Study summary

The primary objective is to evaluate Progression Free Survival (PFS) of the group (160 mg group) in which dose reduction was performed for 12 weeks after the first administration of Lazertinib.

The Secondary objectives of this study are as follows.

  1. To evaluate Progression-free survival (PFS) of the group maintaining the same dose (240mg group) and the group in which dose reduction was performed (160mg group) for 12 weeks after the first administration of Lazertinib
  2. In the group maintaining the same dose (240mg group) and the group in which dose reduction was performed (160mg group) for 12 weeks after the first administration of Lazertinib, Time-to-Treatment Discontinuation(TTD), Objective Response Rate(ORR), Disease Control Rate(DCR), Tumor shrinkage and Overall Survival(OS) is evaluated.
  3. In the group maintaining the same dose (240mg group) and the group in which dose reduction was performed (160mg group) for 12 weeks after the first administration of Lazertinib, specific reasons (adverse event name, grade, etc.) according to Lazertinib dose adjustment is evaluated.
  4. To evaluate the treatment profile of Lazertinib including duration of treatment, dose adjustment, and reason for discontinuation of treatment.
  5. To evaluate the safety of Lazertinib in the 240 mg and 160 mg groups
Read the detailed description

This study is a prospective multi-center observational study, and 11 institutions will participate to enroll 200 subjects competitively. We will evaluate the efficacy and safety of Lazertinib according to maintenance of the 240mg dose and reduction of the 160mg dose for 12 weeks after the first administration of Lazertinib in non-small cell lung cancer patients confirmed to be T790M mutation-positive after treatment failure with first- or second-generation EGFR-TKIs. The study period is up to 3 years from the date of IRB approval. Follow-up is 2 years from the last subject enrollment, and data will be collected through periodic medical record review during Lazertinib administration for enrolled subjects.

02

Conditions studied

  • Non-small Cell Lung Cancer

Keywords

  • NSCLC
  • EGFR-TKI
  • Lazertinib
03

In context

Carcinoma, Non-Small-Cell Lung

7,620 studies on the registry are indexed under Carcinoma, Non-Small-Cell Lung; 1,838 are open to participants now.

This study's planned enrollment of 200 is above the median of 160 across 1,148 observational studies indexed under Carcinoma, Non-Small-Cell Lung.

Browse Carcinoma, Non-Small-Cell Lung studies →

Lead sponsor

Pusan National University Hospital is the lead sponsor of 80 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients who agreed to participate in this study among patients scheduled to receive Lazertinib after T790M mutation was confirmed positive after treatment with 1st or 2nd generation EGFR-TKIs

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Patients who agreed in writing to participate in this study
  2. Adult men and women over 20 years of age
  3. Patients with locally advanced or , recurrent non-small cell lung cancer with EGFR mutation (based on AJCC 8th edition)
  4. Patients with confirmed disease progression after 1st or 2nd generation EGFR-TKI treatment
  5. Patients scheduled to receive Lazertinib after T790M mutation was confirmed positive in tissue or plasma

Exclusion criteria

Exclusion Criteria:

  1. Patients who are receiving or have already completed Lazertinib
  2. Patients whose is less than 12 weeks
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
200 participants (estimated)
Patient registry
No

Groups and cohorts

  • 240mg group

    Maintenance of the 240mg dose for 12 weeks after the first administration of Lazertinib

    Drug: Lazertinib

  • 160mg group

    Reduction of the 160mg dose for 12 weeks after the first administration of Lazertinib

    Drug: Lazertinib

Interventions

  • Lazertinib 240mg(3tablets, 80mg/1tablet), once a day(QD), oral(PO), until disease progression or unacceptable toxicity

    Also known as: LECLAZA

06

What researchers measure

Primary outcomes

  1. Progression Free Survival(PFS)

    Progression-free survival is defined as the period from the start of Lazertinib administration to the time when objective disease progression is confirmed or death from any cause during treatment, whichever occurs first.

    Time frame: Up to approximately 3 years

Secondary outcomes

  1. Time-to-Treatment Discontinuation (TTD)

    Time-to-Treatment Discontinuation (TTD) is defined as the time from the start of Lazertinib administration to the point at which Lazertinib administration was discontinued for any reason.

    Time frame: Up to approximately 3 years

  2. Objective Response Rate(ORR)

    Objective Response Rate (ORR) is defined as the proportion of subjects whose best overall response was complete response(CR) or partial response(PR) during the period of Lazertinib administration.

    Time frame: Up to approximately 3 years

  3. Disease Control Rate (DCR)

    Disease Control Rate (DCR) is defined as the proportion of subjects whose best overall response was complete response(CR), partial response(PR), or stable disease(SD) during the period of Lazertinib administration.

    Time frame: Up to approximately 3 years

  4. Tumor shrinkage

    Tumor shrinkage is defined as the ratio of the size of the primary lesion at the time of baseline before the first administration of Lazertinib and the size of the primary lesion at the time of maximum overall response during Lazertinib administration.

    Time frame: Up to approximately 3 years

  5. Overall Survival (OS)

    Overall Survival (OS) is defined as the period from the start of Lazertinib administration to death from any cause.

    Time frame: Up to approximately 3 years

07

Study locations

11 sites
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Feb 2023; primary completion for Dec 2025, 34 months later.

Of 355 non-industry observational studies under Carcinoma, Non-Small-Cell Lung, half reached primary completion within 58 months of starting (the median), counting those still running; a quarter within 36 and three quarters within 126. This study's planned 34 months is below that.

Counting every sponsor, half of 497 studies reached it within 55 months; a quarter within 35 and three quarters within 83.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 29, 2023
First posted
Feb 8, 2023
StartEst.
Feb 1, 2023
Primary completionEst.
Dec 31, 2025
CompletionEst.
Dec 31, 2025
Last update
Feb 8, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 8, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05716672
Lead sponsor
Pusan National University Hospital
Collaborators
Yuhan Corporation
Responsible party
Min Ki Lee (Professor, Pusan National University Hospital) — Principal investigator
First posted
Feb 8, 2023
Start date
Feb 1, 2023 (estimated)
Primary completion
Dec 31, 2025 (estimated)
Completion
Dec 31, 2025 (estimated)
Last update
Feb 8, 2023

Study contacts

Min Ki Lee, MD, PhD
Contact
leemk@pusan.ac.kr
+82-51-240-7216
Jung Seop Eom, MD, PhD
Contact
ejspulm@gmail.com
+82-51-240-7889
Min Ki Lee, MD, PhD
principal investigator · Pusan National University Hospital

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Jan 2023. You cannot join it, but the record below documents what was studied.

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Discussion

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