REACH-EGFR: Testing a new targeted tablet called VRN110755 for people with locally advanced or metastatic non-small cell lung cancer (NSCLC) that has an EGFR gene mutation.A Phase 1/2 Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Efficacy of VRN110755 in Patients With Epidermal Growth Factor Receptor (EGFR) Mutant Non-Small Cell Lung Cancer (NSCLC)

Exclusion

• Received an investigational anticancer therapy within 14 days or 5 half-lives (whichever is longer) before the first dose of study treatment.
• Unresolved side effects from previous anticancer therapy greater than Grade 1 according to the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE), except for Grade 2 peripheral neuropathy or alopecia.
• Pregnant or breastfeeding, or planning to become pregnant during the study.
• NSCLC with an EGFR or HER2 exon 20 insertion mutation.
• Another active malignancy within the past 3 years, with the exception of adequately treated cancers considered cured.
• Inadequate bone marrow, kidney, or liver function based on protocol-defined laboratory criteria.
• Active infection requiring systemic antibacterial, antifungal, or antiviral therapy within 14 days before the first dose of study treatment.
• Active hepatitis B or hepatitis C infection, or known human immunodeficiency virus (HIV) infection.
• Receipt of a live vaccine within 4 weeks before the first dose of study treatment.
• Use of strong or moderate cytochrome P450 (CYP) 3A inhibitors or inducers, certain herbal supplements, or other prohibited medications within the protocol-defined washout period.
• Major surgery within 4 weeks before the first dose of study treatment or incomplete recovery from major surgery.
• Receipt of prior anticancer therapy within the protocol-defined washout period, including systemic therapy, immunotherapy, or radiotherapy.
• Symptomatic or uncontrolled central nervous system (CNS) metastases or spinal cord compression requiring increasing doses of corticosteroids. Participants with treated and stable CNS metastases or asymptomatic CNS disease may be eligible.
• Requirement for systemic corticosteroid therapy exceeding the protocol-defined limit.
• Clinically significant cardiovascular disease, including prolonged QT interval, clinically significant arrhythmias, recent myocardial infarction, unstable angina, congestive heart failure, uncontrolled hypertension, reduced left ventricular ejection fraction, or use of medications known to prolong the QT interval.
• History of interstitial lung disease, noninfectious pneumonitis requiring steroid treatment, or current interstitial lung disease or pneumonitis.
• Inability to swallow oral capsules or gastrointestinal disorders that may interfere with absorption of study treatment.
• Known allergy or hypersensitivity to VRN110755 or any of its components.
• Alcohol or drug abuse within the previous 2 years or any medical, psychological, or social condition that, in the opinion of the investigator, would interfere with study participation or interpretation of study results.
• Use of proton pump inhibitors, histamine-2 receptor antagonists, or locally acting antacids within the protocol-defined washout period or inability to comply with protocol requirements for acid-reducing medications.
• For Phase 1b and Phase 2 only: Presence of another targetable oncogenic driver alteration with an approved targeted therapy, including MET or HER2 amplification; ALK, ROS1, NTRK, or RET fusion; or BRAF V600E or KRAS G12X mutation.