Firmonertinib 160 mg in Patients With EGFR-Mutant Advanced NSCLC Demonstrating SD After 8 Week Induction With Firmonertinib 80 mg

January 18, 2026 updated by: Peking University Cancer Hospital & Institute

A Multicenter, Prospective, Phase II, Single-Arm Study of Firmonertinib 160 mg in Patients With EGFR-Mutant Advanced NSCLC Demonstrating Stable Disease After 8 Week Induction With Firmonertinib 80 mg

This study evaluates the efficacy and safety of Firmonertinib 160 mg once daily in patients with EGFR-mutant, advanced NSCLC who achieve stable disease after first-line Firmonertinib 80 mg for 8 weeks.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
28

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age 18-75 years.
  • ECOG performance status 0-1; life expectancy ≥3 months.
  • Histologically/cytologically confirmed advanced/metastatic non-squamous NSCLC unsuitable for curative therapy.
  • Documented EGFR 19del or L858R mutation.
  • No prior systemic therapy for advanced disease.
  • Stable disease after 8 weeks of Firmonertinib 80 mg daily.
  • more than 1 measurable lesion per RECIST v1.1.
  • Adequate hematologic, renal, hepatic, and coagulation function.
  • Signed written informed consent.

Exclusion Criteria:

  • Hypersensitivity to Firmonertinib or related compounds.
  • Other actionable oncogenic drivers (ALK, ROS1, RET, BRAF, NTRK, MET, KRAS, except TP53/RB1).
  • Prior EGFR-TKI therapy or prohibited concomitant medications.
  • Unresolved toxicities >CTCAE Grade 1 (except allowed conditions).
  • Symptomatic CNS metastases or spinal cord compression.
  • GI disorders impairing drug absorption.
  • Uncontrolled systemic diseases or active infections (HBV/HCV/HIV).
  • Interstitial lung disease (history or active).
  • Clinically significant cardiac abnormalities including QTc >470 ms or LVEF <50%.
  • Pregnancy or breastfeeding.
  • Any condition compromising compliance.
  • CR, PR, or PD at completion of induction therapy.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Firmonertinib 160mg
Drug: Firmonertinib 160mg
Patients enter an 8-week induction phase at 80 mg once daily. Those with stable disease per RECIST v1.1 at Week 8 escalate to 160 mg daily until disease progression or unacceptable toxicity.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Objective Response Rate (ORR)
Time Frame: From dose escalation (Week 8) until documented disease progression or start of new anticancer therapy, assessed approximately every 8 weeks, up to 24 months.
Percentage of patients achieving CR or PR per RECIST v1.1.
From dose escalation (Week 8) until documented disease progression or start of new anticancer therapy, assessed approximately every 8 weeks, up to 24 months.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Progression-Free Survival (PFS)
Time Frame: From first dose to disease progression or death, whichever occurs first; followed for up to 24 months.
Time from the start of randomization (or the start of treatment in a single-arm trial) to tumor progression or death from any cause, whichever occurs first.
From first dose to disease progression or death, whichever occurs first; followed for up to 24 months.
Disease Control Rate (DCR)
Time Frame: From dose escalation (Week 8) until documented disease progression or start of new anticancer therapy, assessed approximately every 8 weeks, up to 24 months.
Percentage of patients achieving CR, PR, or SD.per RECIST v1.1.
From dose escalation (Week 8) until documented disease progression or start of new anticancer therapy, assessed approximately every 8 weeks, up to 24 months.
Duration of Response (DoR)
Time Frame: From dose escalation (Week 8) until documented disease progression or start of new anticancer therapy, assessed approximately every 8 weeks, up to 24 months.
Duration from first response to progression or death.
From dose escalation (Week 8) until documented disease progression or start of new anticancer therapy, assessed approximately every 8 weeks, up to 24 months.
CNS Objective Response Rate (CNS-ORR)
Time Frame: From dose escalation (Week 8) until documented disease progression or start of new anticancer therapy, assessed approximately every 8 weeks, up to 24 months.
Evaluated via CNS imaging per RECIST v1.1 or applicable CNS criteria.
From dose escalation (Week 8) until documented disease progression or start of new anticancer therapy, assessed approximately every 8 weeks, up to 24 months.
Incidence of Treatment-related adverse event (TRAE)
Time Frame: From first dose of therapy through 30 days after last dose of study treatment up to 24 months.
any adverse event that in the investigator's opinion may have been caused by the study medication with reasonable possibility per CTCAE 5.0.
From first dose of therapy through 30 days after last dose of study treatment up to 24 months.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Peking University Cancer Hospital & Institute

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2030

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2032

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 11, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 11, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 23, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 21, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 18, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2025YJZ88

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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