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Firmonertinib

Phase 3

Non-Small-Cell Lung Cancer | Small molecule | Oncology |ArriVent BioPharma, Inc.|Last Updated: Jul 2, 2026

Success Probability
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Market & Valuation
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Trial Design
RandomizedACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment480
FDA Designations
BREAKTHROUGH_THERAPYORPHAN_DRUG
Clinical trial landscape

Firmonertinib · 2 trials · 8 indications

Phase 3 2
NCT07185997Study to Evaluate Efficacy and Safety of Firmonertinib Compared With Investigator's Choice of EGFR Inhibitor as First-Line Treatment in Participants Who Have Locally Advanced or Metastatic NSCLC With EGFR P-Loop and Alpha C-Helix Compressing (PACC) Uncommon MutationsNon-Small-Cell Lung Cancer
RECRUITING480 Analytics
NCT07010419A Study to Assess the Efficacy and Safety of Firmonertinib Versus Placebo for Adjuvant Treatment in Participants With Stage IB - IIIB NSCLC With Uncommon Epidermal Growth Factor Receptor (EGFR) Mutations, Following Complete Surgical Resection With or Without Adjuvant Chemotherapy(FIRMOST)NSCLC
RECRUITING338 Analytics
PHASE3RECRUITING
Study to Evaluate Efficacy and Safety of Firmonertinib Compared With Investigator's Choice of EGFR Inhibitor as First-Line Treatment in Participants Who Have Locally Advanced or Metastatic NSCLC With EGFR P-Loop and Alpha C-Helix Compressing (PACC) Uncommon Mutations
Non-Small-Cell Lung CancerUnlock trial analytics
PHASE3RECRUITING
A Study to Assess the Efficacy and Safety of Firmonertinib Versus Placebo for Adjuvant Treatment in Participants With Stage IB - IIIB NSCLC With Uncommon Epidermal Growth Factor Receptor (EGFR) Mutations, Following Complete Surgical Resection With or Without Adjuvant Chemotherapy(FIRMOST)
NSCLCUnlock trial analytics
Study Endpoints
Primary Endpoints
Progression Free Survival (PFS) determined by blinded independent central review (BICR)
Until progression or death, assessed up to approximately 4 years

PFS is defined as the time from randomization to the first occurrence of disease progression as determined by BICR using RECIST v1.1, or death from any cause, whichever occurs first.

Confirmed overall response rate (ORR) as determined by BICR
Until progression or death, assessed up to approximately 3 years

Confirmed ORR is defined as the percentage of participants with a confirmed CR or PR based on BICR assessment relative to the total number of participants.

Disease free survival (DFS)
Up to 3 years

DFS as assessed by the investigator in Stage II- IIIB. DFS defined as the time from the date of randomization to the first observation of disease recurrence (by pathological diagnosis or imaging) or death caused by any reason, whichever occurs first.

Secondary Endpoints
Overall survival (OS)
Until death, assessed up to approximately 5 years
Investigator-assessed PFS
Until progression or death, assessed up to approximately 4 years
Investigator-assessed confirmed ORR
Until progression or death, assessed up to approximately 3 years
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Firmonertinib 240 mgEXPERIMENTAL -
EGFR-TKI inhibitor osimertinib or afatinib based on investigator's choiceACTIVE_COMPARATOR -
FirmonertinibEXPERIMENTALFirmonertinib: 240 mg, QD, orally
PlaceboPLACEBO_COMPARATORPlacebo: 240 mg, QD, orally
Interventions
NameTypeDescription
FirmonertinibDRUG240 mg oral, daily firmonertinib tablet
EGFR-TKI inhibitor based on investigator's choiceDRUGosimertinib 80 mg oral, daily tablet OR afatinib 40 mg oral, daily tablet
PlaceboDRUGPlacebo: 240 mg, QD, orally
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Eligibility Criteria
Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites78

Key Eligibility Criteria: * Histologically or cytologically documented, locally advanced or metastatic Non-Small Cell Lung Cancer (NSCLC) not amenable to curative surgery or radiotherapy. * Documented results of the presence of an Epidermal Growth Factor Receptor (EGFR) PACC mutation in tumor tissu...

Countries:United StatesAustraliaCanadaFranceGreeceHong KongItalyJapanMalaysiaSingaporeSouth KoreaSpainTaiwanThailandUnited KingdomChina
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Competitive Landscape -Non-Small Cell Lung Cancer 395 trials (matched to "Non-Small-Cell Lung Cancer")
Recent Changes (Last 90 Days)
LOWJul 2, 2026NCT07185997lastUpdatePostDate: changed
LOWJul 2, 2026NCT07185997lastUpdatePostDate: changed
LOWJul 2, 2026NCT07185997lastUpdatePostDate: changed
LOWJun 8, 2026NCT07185997lastUpdatePostDate: changed
LOWJun 8, 2026NCT07185997lastUpdatePostDate: changed
LOWJun 8, 2026NCT07185997lastUpdatePostDate: changed
LOWMay 26, 2026NCT07010419primaryCompletionDate: changed
LOWMay 26, 2026NCT07185997primaryCompletionDate: changed
LOWMay 24, 2026NCT07010419studyFirstPostDate: changed
LOWMay 24, 2026NCT07185997studyFirstPostDate: changed