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Halmos B, Rai P, Min J, Hu X, Chirovsky D, Shamoun M, Zhao B. Real-world outcomes on platinum-containing chemotherapy for EGFR-mutated advanced nonsquamous NSCLC with prior exposure to EGFR tyrosine kinase inhibitors. Front Oncol 2024; 14:1285280. [PMID: 38699642 PMCID: PMC11063374 DOI: 10.3389/fonc.2024.1285280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 03/18/2024] [Indexed: 05/05/2024] Open
Abstract
Background Front-line therapy with an EGFR tyrosine kinase inhibitor (TKI) is the standard of care for treating patients with advanced nonsquamous NSCLC with the common sensitizing EGFR exon 19 deletion and exon 21 L858R point mutations. However, EGFR TKI resistance inevitably develops. The optimal subsequent therapy remains to be identified, although platinum-containing chemotherapy regimens are often administered. Our objectives were to describe baseline characteristics, survival, and subsequent treatment patterns for patients with advanced nonsquamous NSCLC with EGFR exon 19 deletion or L858R mutation who received a platinum-based combination regimen after front-line EGFR TKI therapy. Methods This retrospective study used a nationwide electronic health record-derived deidentified database to select adult patients with advanced nonsquamous NSCLC, evidence of EGFR exon 19 deletion or L858R mutation, and ECOG performance status of 0-2 who initiated platinum-containing chemotherapy, with or without concomitant immunotherapy, from 1-January-2011 to 30-June-2020 following receipt of any EGFR TKI as first-line therapy or, alternatively, a first- or second-generation EGFR TKI (erlotinib, afatinib, gefitinib, dacomitinib) as first-line therapy followed by the third-generation EGFR TKI osimertinib as second-line therapy. Data cut-off was 30-June-2022. The Kaplan-Meier method was used to estimate overall survival (OS) after initiation of pemetrexed-platinum (n=119) or any platinum-based combination regimen (platinum cohort; n=311). Results The two cohorts included two-thirds women (65%-66%) and 57%-58% nonsmokers; median ages were 66 and 65 years in pemetrexed-platinum and platinum cohorts, respectively. Median OS was 10.3 months (95% CI, 8.1-13.9) from pemetrexed-platinum initiation and 12.4 months (95% CI, 10.2-15.2) from platinum initiation; 12-month survival rates were 48% and 51%, respectively; 260 patients (84%) had died by the end of the study. Conclusion The suboptimal survival outcomes recorded in this study demonstrate the unmet need to identify more effective subsequent treatment regimens for patients with EGFR-mutated advanced nonsquamous NSCLC after EGFR TKI resistance develops.
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Affiliation(s)
- Balazs Halmos
- Department of Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY, United States
| | - Pragya Rai
- Center for Observational and Real-World Evidence, Merck & Co., Inc., Rahway, NJ, United States
| | - Jae Min
- Center for Observational and Real-World Evidence, Merck & Co., Inc., Rahway, NJ, United States
| | - Xiaohan Hu
- Center for Observational and Real-World Evidence, Merck & Co., Inc., Rahway, NJ, United States
| | - Diana Chirovsky
- Center for Observational and Real-World Evidence, Merck & Co., Inc., Rahway, NJ, United States
| | - Mark Shamoun
- Clinical Research, Merck & Co., Inc., Rahway, NJ, United States
| | - Bin Zhao
- Clinical Research, Merck & Co., Inc., Rahway, NJ, United States
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Aboelhassan R, Sobeih ME, El-Din MA, Ghali RR, El-Din IS, Khorshid O, Mokhtar M, Rabea AM, Belal A, Azim HA, Abdullah M, Elnahas T, Tawfik H, Abdelwahab S, Elsaid AA, Hashem T, Mancy M, Farag H. Real-world treatment patterns and clinical outcomes in patients with stage III non-small cell lung cancer: results of KINDLE-Egypt cohort. Ther Adv Med Oncol 2023; 15:17588359231212182. [PMID: 38028146 PMCID: PMC10666716 DOI: 10.1177/17588359231212182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
Background Stage III non-small cell lung cancer (NSCLC) being highly heterogeneous requires multimodal therapeutic strategies for optimal management. We present findings on treatment patterns and their associated survival outcomes in patients with stage III NSCLC from the Egypt subset of the KINDLE global real-world study conducted across countries from Asia, Middle East, Africa, and Latin America. Method Retrospective data from the Egypt subset (21 centers) of adult patients diagnosed with stage III NSCLC between January 2013 and December 2017 were analyzed. Descriptive and inferential statistics summarized treatment modalities, progression-free survival (PFS), and overall survival (OS). Results Of 421 patients enrolled (median age: 59.0 years), 77.9% were males, 53.5% had stage IIIA disease, 60.8% had adenocarcinoma, 78.4% had an unresectable disease, and 81.5% had Eastern Cooperative Oncology Group performance status ⩽1. Overall, chemotherapy alone (40.4%) was predominantly used in the initial line, whereas definite radiotherapy was used in only 5.0% of patients. In resectable patients, chemotherapy plus surgery (33.8%), surgery alone (20.6%), or other surgery (20.6%) were the top three modalities used in initial line of treatment. Chemotherapy alone was most preferred (48.8%) in unresectable patients, followed by sequential chemoradiotherapy (CRT) (17.6%) and concurrent CRT (9.3%). The overall median PFS was 10.3 months [95% confidence interval (CI), 9.43-12.02], whereas the median OS was 18.5 months (95% CI, 16.46-21.88). Overall, female gender, adenocarcinoma histology, and radical therapy as surgery or CRT predicted significantly longer OS (all p < 0.05). Conclusion KINDLE-Egypt cohort revealed wide heterogeneities in the treatment patterns of stage III NSCLC. Although deemed resectable, few patients did not undergo surgery, probably due to high smoking rates leading to poor lung function. Lower survival outcomes than other published real-world studies highlight the need for timely approval and availability of novel targeted and immunotherapies to enhance patient outcomes. Trial registration NCT03725475.
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Affiliation(s)
| | | | | | | | | | - Ola Khorshid
- National Cancer Institute, Cairo University, Cairo, Egypt
| | | | | | | | | | | | | | | | | | | | - Tarek Hashem
- Menofia University, Shebin EL-koum, Cairo, Egypt
- Armed Forces College of Medicine, Heliopolis, Cairo, Egypt
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Shenolikar R, Liu S, Shah A, Tse J, Cao Y, Near A. Real-world treatment patterns of metastatic non-small cell lung cancer patients receiving epidermal growth factor receptor tyrosine kinase inhibitors. Cancer Med 2023; 12:159-169. [PMID: 35702932 PMCID: PMC9844647 DOI: 10.1002/cam4.4918] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/18/2022] [Accepted: 05/25/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Several epidermal growth factor receptor tyrosine kinase inhibitors (EGFR TKI) have been approved for first-line (1L) treatment of EGFR-mutated metastatic non-small cell lung cancer (mNSCLC) in the United States (US). Real-world analyses of 1L treatment patterns with EGFR TKIs, including the third-generation EGFR TKI osimertinib which was most recently approved in 2018, are still sparse. METHODS This retrospective observational study used data from IQVIA's prescription claims (LRx) and medical claims (Dx) databases. mNSCLC patients newly treated with any EGFR TKI in the 1L setting were identified from January 1, 2015 to April 30, 2020; the first date of EGFR TKI (third-generation osimertinib, first-generation [erlotinib, gefitinib], or second-generation [afatinib, dacomitinib]) was the index date. Treatment patterns were reported in the cohorts stratified by 1L EGFR TKI. RESULTS A total of 2505 patients were included in the study (982 osimertinib, 1060 first-generation, and 463 second-generation EGFR TKI). Beginning in 2018, osimertinib became the most common 1L EGFR TKI (66.7%) and in early 2020, it accounted for 90.6% of 1L EGFR TKIs. Nearly all patients (>97%) were treated with 1L EGFR TKI monotherapy. Patients with 1L osimertinib had longer treatment duration compared to patients with 1L first- or second-generation EGFR TKI (median months: 17.8 vs. 8.7 vs. 10.5, respectively; log-rank test for comparisons with osimertinib p < 0.0001) over median follow-up times of 9.8, 20.5, and 19.3 months. 32.5% and 36.3% of the first- and second-generation EGFR TKI cohorts, respectively, had evidence of 2L treatment. Osimertinib monotherapy accounted for the majority of 2L treatments (58.3%/60.7%) and 11.3%/8.9% had 2L chemotherapy or immuno-oncology therapy following 1L first- or second-generation EGFR TKI. CONCLUSION In this real-world study of a US claims database, 1L treatment duration was longer with osimertinib compared with other EGFR TKIs. Future studies with longer follow-up are recommended to understand treatment patterns after progression on EGFR TKIs.
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Affiliation(s)
| | | | | | | | - Yao Cao
- IQVIADurhamNorth CarolinaUSA
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Pasello G, Lorenzi M, Pretelli G, Comacchio GM, Pezzuto F, Schiavon M, Buja A, Frega S, Bonanno L, Guarneri V, Calabrese F, Rea F. Diagnostic-Therapeutic Pathway and Outcomes of Early Stage NSCLC: a Focus on EGFR Testing in the Real-World. Front Oncol 2022; 12:909064. [PMID: 35847912 PMCID: PMC9278847 DOI: 10.3389/fonc.2022.909064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/31/2022] [Indexed: 11/30/2022] Open
Abstract
Background Osimertinib is considered the standard-of-care for previously-untreated EGFR mutant advanced non-small cell lung cancer (NSCLC). Oncogene driver screening in early NSCLC is not standard practice. A real-world study has been designed in order to investigate the optimal testing frequency and timing for EGFR mutations in early NSCLC in clinical practice. Patients and Methods The present observational, retrospective study evaluated the real-world diagnostic-therapeutic pathway and clinical outcomes of 225 patients with stage I-III NSCLC, with particular reference to the EGFR-mutant subgroup. Results Prior to surgery, 101 patients had undergone a diagnostic biopsy; EGFR mutational analysis was available in 56 (55%) patients and 12 patients (21%) had a cancer harboring an EGFR mutation. Among surgical specimens, reflex EGFR test was performed in 181 (80%) of 225 and 35 cases (19%) were EGFR mutant. The majority of patients had not received adjuvant chemotherapy (N=174, 77%) or adjuvant radiotherapy (N=201, 89%). Of 49 (22%) patients experiencing disease relapse, 26 (53%) received first-line systemic treatment. All EGFR-mutant relapsed patients (N=6, 12.2%) received an EGFR-TKI. Median overall survival (OS) and relapse-free survival for the entire population were not reached. Multivariate analysis for OS confirmed a significant correlation with age, female gender, EGFR status, necrosis score, perineural invasion, and relapsed disease. EGFR test costs represented 1.6-2.4% of the total costs of management per patient (€34,340). Conclusions Our results suggest that the frequency of EGFR mutations in early stage (I-III) NSCLC is similar to that of advanced stages. Reflex EGFR testing in all early-stage NSCLC at diagnosis or after surgery appears to be a valid tool to give patients the chance to benefit from targeted adjuvant treatment.
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Affiliation(s)
- Giulia Pasello
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
- Division of Medical Oncology 2, Veneto Institute of Oncology IOV – Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padua, Italy
- *Correspondence: Giulia Pasello,
| | - Martina Lorenzi
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
- Division of Medical Oncology 2, Veneto Institute of Oncology IOV – Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padua, Italy
| | - Giulia Pretelli
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
- Division of Medical Oncology 2, Veneto Institute of Oncology IOV – Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padua, Italy
| | - Giovanni Maria Comacchio
- Thoracic Surgery Unit, Department of Cardio-Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Federica Pezzuto
- Pathology Unit, Department of Cardio-Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Marco Schiavon
- Thoracic Surgery Unit, Department of Cardio-Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Alessandra Buja
- Department of Cardiologic, Vascular, and Thoracic Sciences and Public Health, University of Padua, Padua, Italy
| | - Stefano Frega
- Division of Medical Oncology 2, Veneto Institute of Oncology IOV – Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padua, Italy
| | - Laura Bonanno
- Division of Medical Oncology 2, Veneto Institute of Oncology IOV – Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padua, Italy
| | - Valentina Guarneri
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
- Division of Medical Oncology 2, Veneto Institute of Oncology IOV – Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padua, Italy
| | - Fiorella Calabrese
- Pathology Unit, Department of Cardio-Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Federico Rea
- Thoracic Surgery Unit, Department of Cardio-Thoracic and Vascular Sciences, University of Padua, Padua, Italy
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