1307P Blood-based genomic profiling of advanced non-small cell lung cancer (aNSCLC) patients (pts) from blood first assay screening trial (BFAST) and comparison with real-world data (RWD)

MET Exon 14 Skipping in NSCLC: A Systematic Literature Review of Epidemiology, Clinical Characteristics, and Outcomes

INTRODUCTION

MET exon 14 (METex14) skipping is a rare oncogenic driver in non-small-cell lung cancer (NSCLC) for which targeted therapy with MET tyrosine kinase inhibitors (TKIs) was recently approved. Given the heterogeneity in published data of METex14 skipping NSCLC, we conducted a systematic literature review to evaluate its frequency, patient characteristics, and outcomes.

METHODS

On June 13, 2022 we conducted a systematic literature review of publications and conference abstracts reporting frequency, patient characteristics, or outcomes of patients with METex14 skipping NSCLC.

RESULTS

We included 139 studies reporting frequency or patient characteristics (350,997 patients), and 39 studies reporting clinical outcomes (3989 patients). Median METex14 skipping frequency was 2.0% in unselected patients with NSCLC, with minimal geographic variation. Median frequency was 2.4% in adenocarcinoma or nonsquamous subgroups, 12.0% in sarcomatoid, and 1.3% in squamous histology. Patients with METex14 skipping NSCLC were more likely to be elderly, have adenocarcinoma histology; there was no marked sex or smoking status distribution. In first line of treatment, median objective response rate ranged from 50.7% to 68.8% with targeted therapies (both values correspond to MET TKIs), was 33.3% with immunotherapy, and ranged from 23.1% to 27.0% with chemotherapy.

CONCLUSIONS

Patients with METex14 skipping are more likely to have certain characteristics, but no patient subgroup can be ruled out; thus, it is crucial to test all patients with NSCLC to identify suitable candidates for MET inhibitor therapy. MET TKIs appeared to result in higher efficacy outcomes, although no direct comparison with chemotherapy or immunotherapy regimens was found.

Significance of the Expression of TC and TG Levels in the Initial Diagnosis and Treatment of SCLC Patients and Their Tie-In with Prognosis

The article examines the expression of TC and TG levels in the initial diagnosis and treatment of SCLC patients and their tie-in with prognosis. Patients with SCLC are included in the case set, who are initially treated in the tumor center of our hospital from January 2020 to January 2021 and are confirmed by histopathology or cytology as the research subjects. 80 healthy volunteers are included in the control set, who received physical examination. All the enrolled patients received the first-line standard treatment plan, and the clinical data of all SCLC patients are inquired through the medical record file system of the hospital. At the initial diagnosis and treatment, the TG and TC levels of all patients and healthy persons are measured and recorded by blood biochemistry. For SCLC patients, the risk factors affecting the prognosis of patients with progression-free survival include newly diagnosed TC, TG levels, and tumor stage. Combined TC and TG detection can be used as indicators to predict the prognosis of the patients. TC and TG are significantly correlated with the prognosis of the patients with progression-free survival time. It is worthy of clinical application.