PMID- 37330972 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230826 IS - 2366-1089 (Electronic) IS - 2366-1070 (Print) IS - 2366-1089 (Linking) VI - 11 IP - 3 DP - 2023 Sep TI - Real-World Biomarker Test Utilization and Subsequent Treatment in Patients with Early-Stage Non-small Cell Lung Cancer in the United States, 2011-2021. PG - 343-360 LID - 10.1007/s40487-023-00234-7 [doi] AB - INTRODUCTION: Biomarker testing is increasingly crucial for patients with early-stage non-small cell lung cancer (eNSCLC). We explored biomarker test utilization and subsequent treatment in eNSCLC patients in the real-world setting. METHODS: Using COTA's oncology database, this retrospective observational study included adult patients >/= 18 years old diagnosed with eNSCLC (disease stage 0-IIIA) between January 1, 2011 and December 31, 2021. Date of first eNSCLC diagnosis was the study index date. We reported testing rates by index year for patients who received any biomarker test within 6 months of eNSCLC diagnosis and by each molecular marker. We also evaluated treatments received among patients receiving the five most common biomarker tests. RESULTS: Among the 1031 eNSCLC patients included in the analysis, 764 (74.1%) received >/= 1 biomarker test within 6 months of eNSCLC diagnosis. Overall, epidermal growth factor receptor (EGFR; 64%), anaplastic lymphoma kinase (ALK; 60%), programmed death receptor ligand 1 (PD-L1; 48%), ROS proto-oncogene 1 (ROS1; 46%), B-Raf proto-oncogene (40%), mesenchymal epithelial transition factor receptor (35%), Kirsten rat sarcoma viral oncogene (29%), RET proto-oncogene (22%), human epidermal growth factor receptor 2 (21%), and phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (20%) were the 10 most frequently tested biomarkers. The proportion of patients undergoing biomarker testing rose from 55.3% in 2011 to 88.1% in 2021. The most common testing methods were Sanger sequencing for EGFR (244, 37%), FISH (fluorescence in situ hybridization) for ALK (464, 75%) and ROS1 (357, 76%), immunohistochemical assay for PD-L1 (450, 90%), and next-generation sequencing testing for other biomarkers. Almost all the 763 patients who received the five most common biomarker tests had a test before the initiation of a systemic treatment. CONCLUSION: This study suggests a high biomarker testing rate among patients with eNSCLC in the US, with testing rates for various biomarkers increasing over the past decade, indicating a continuous trend towards the personalization of treatment decisions. CI - (c) 2023. The Author(s). FAU - Yan, Jessie T AU - Yan JT AD - Roche Information Solutions, Roche Diagnostics, Santa Clara, CA, USA. jessie.yan@roche.com. FAU - Jin, Yue AU - Jin Y AD - Roche Information Solutions, Roche Diagnostics, Santa Clara, CA, USA. FAU - Lo, Ernest AU - Lo E AD - Roche Information Solutions, Roche Diagnostics, Santa Clara, CA, USA. FAU - Chen, Yilin AU - Chen Y AUID- ORCID: 0000-0003-0040-3881 AD - The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, School of Pharmacy, University of Washington, Seattle, WA, USA. FAU - Hanlon Newell, Amy E AU - Hanlon Newell AE AD - Clinical Development/Medical Affairs, Global, Roche Diagnostics Solutions, Tucson, AZ, USA. FAU - Kong, Ying AU - Kong Y AD - Clinical Development/Medical Affairs, Global, Roche Diagnostics Solutions, Tucson, AZ, USA. FAU - Inge, Landon J AU - Inge LJ AUID- ORCID: 0000-0003-0082-3464 AD - Clinical Development/Medical Affairs, Global, Roche Diagnostics Solutions, Tucson, AZ, USA. LA - eng PT - Journal Article DEP - 20230618 PL - New Zealand TA - Oncol Ther JT - Oncology and therapy JID - 101677510 PMC - PMC10447355 OTO - NOTNLM OT - Biomarkers OT - Diagnostic testing OT - Early-stage OT - Non-small cell lung cancer OT - Real-world testing COIS- Jessie T. Yan, Yue Jin, and Ernest Lo are employees of Roche Diagnostics, Santa Clara, and hold Roche stocks; Ying Kong and Landon J. Inge are employees of Roche Diagnostics Solutions, Tucson, and hold Roche stocks; Yilin Chen was a summer intern at Roche Diagnostics during the conduct of the study; Amy E. Hanlon Newell was an employee of Roche Diagnostics Solutions, Tucson, at the time of analysis and holds Roche stock. EDAT- 2023/06/18 19:17 MHDA- 2023/06/18 19:18 PMCR- 2023/06/18 CRDT- 2023/06/18 14:48 PHST- 2023/03/13 00:00 [received] PHST- 2023/05/11 00:00 [accepted] PHST- 2023/06/18 19:18 [medline] PHST- 2023/06/18 19:17 [pubmed] PHST- 2023/06/18 14:48 [entrez] PHST- 2023/06/18 00:00 [pmc-release] AID - 10.1007/s40487-023-00234-7 [pii] AID - 234 [pii] AID - 10.1007/s40487-023-00234-7 [doi] PST - ppublish SO - Oncol Ther. 2023 Sep;11(3):343-360. doi: 10.1007/s40487-023-00234-7. Epub 2023 Jun 18.