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This study looks at a drug called ZN-e4 in patients with non-small cell lung cancer (NSCLC) that carries a mutation in the EGFR gene. Patients aged 18 and older with metastatic or advanced NSCLC whose tumor has an EGFR mutation suitable for EGFRi therapy (such as G719X, exon 19 deletion, exon 21 L858R, or L861Q) may take part. The study was conducted in Phase 1 and has been completed.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
INCLUSION CRITERIA * Age ≥ 18 years * Histologically or cytologically confirmed metastatic or advanced inoperable diagnosis of NSCLC * Documented radiographic progression on the last treatment administered prior to enrolling in the study. * Phase 1 only: Confirmation that the tumor harbors an EGFR mutation known to be associated with aberrations that are amenable to EGFRi therapy including but not limited to: G719X, exon 19 deletion, exon 21 L858R, and L861Q. OR - Must have experienced clinical benefit from an EGFRi, * All acute toxic effects of any prior antitumor therapy resolved to Grade ≤1 or baseline before the start of study drug dosing (with the exception of alopecia \[any grade permitted\] and neurotoxicity \[Grade 1 or 2 permitted\]). * Measurable disease meeting the criteria specified by RECIST v1.1 * Phase 2, Cohort 1 only: Subjects must have confirmation of tumor T790M mutation status (confirmed positive) and are osimertinib naïve * Phase 2, Cohort 2 only: EGFR aberrations that are amenable to EGFRi therapy, including but not limited to: G719X, exon 19 deletion, exon 21 L858R, and L861Q, and be EGFRi naïve EXCLUSION CRITERIA * Subjects who have received only neoadjuvant or adjuvant therapy for NSCLC. * Phase 1 only: Treatment with an EGFRi within 7 days or 5 half-lives of the first dose of study treatment, whichever is shorter. * Phase 1 only: Cytotoxic chemotherapy, investigational agents, or any anticancer therapy for the treatment of advanced NSCLC (other than EGFRi) within 21 days of the first dose of study treatment. * Prior treatment with immunotherapy within 3 months prior to the first dose of study treatment. * Radiotherapy within 28 days of first dose of study treatment; subjects given palliative radiotherapy to peripheral sites (e.g., bone metastases) may enter the study before 28 days have elapsed provided the radiated sites do not contain lesions which may be used to evaluate response, and must have recovered from any acute, reversible effects. * Known or suspected central nervous system (CNS) metastases or leptomeningeal disease (Phase 1 only). Subjects with previously treated brain or CNS metastases are eligible provided that the subject has recovered from any acute effects of radiotherapy, does not have brain metastasis related symptoms, is not requiring systemic steroids for at least 2 weeks prior to study drug administration, and any whole brain radiation therapy was completed at least 4 weeks prior to study drug administration, or any stereotactic radiosurgery (SRS) was completed at least 2 weeks prior to study drug administration. * Prior allogeneic bone marrow transplantation. * History of a concurrent or second malignancy except for: adequately treated local basal cell or squamous cell carcinoma of the skin; cervical carcinoma in situ; superficial bladder cancer; breast carcinoma in situ; adequately treated Stage 1 or 2 cancer currently in complete remission; any other cancer that has been in complete remission for ≥5 years.