Real World Analysis of Small Cell Lung Cancer Patients: Prognostic Factors and Treatment Outcomes

In this observational study, we assessed treatment patterns and prognostic factors in patients with small cell lung cancer (SCLC) in a large state-mandated healthcare organization in Israel. <i>Methods:</i> All incident cases with histologically confirmed SCLC who initiated systemic anti...

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Main Authors: Sarah Sharman Moser, Jair Bar, Inna Kan, Keren Ofek, Raanan Cohen, Nikhil Khandelwal, Varda Shalev, Gabriel Chodick, Nava Siegelmann-Danieli
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Current Oncology
Subjects:
Online Access:https://www.mdpi.com/1718-7729/28/1/36
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author Sarah Sharman Moser
Jair Bar
Inna Kan
Keren Ofek
Raanan Cohen
Nikhil Khandelwal
Varda Shalev
Gabriel Chodick
Nava Siegelmann-Danieli
author_facet Sarah Sharman Moser
Jair Bar
Inna Kan
Keren Ofek
Raanan Cohen
Nikhil Khandelwal
Varda Shalev
Gabriel Chodick
Nava Siegelmann-Danieli
author_sort Sarah Sharman Moser
collection DOAJ
description In this observational study, we assessed treatment patterns and prognostic factors in patients with small cell lung cancer (SCLC) in a large state-mandated healthcare organization in Israel. <i>Methods:</i> All incident cases with histologically confirmed SCLC who initiated systemic anti-cancer treatment between 2011 and 2017 were identified. Treatment patterns and overall survival (OS) were evaluated for each line of therapy. <i>Results:</i> A total of 235 patients were identified (61% male, median age 64 years, 95% ever smokers, 64% had extensive stage). The first-line treatment was platinum–etoposide regimen for 98.7% of the cohort. The second and third-line regimen were given to 43% and 12% of patients, respectively. Mean OS for extensive and limited stage patients was 9.1 and 23.5 months respectively. In a multivariable model, increased risk for mortality was observed among patients with an ECOG performance status (PS) of 2 compared to a PS of 0–1 for the extensive stage patients (Hazard ratio (HR) = 1.63, 95% confidence ratios (CI): 1.00–2.65); and for males compared to females for the limited stage patients (HR = 2.17; 95% CI: 1.12–4.20). Regarding all 2nd line patients in a multivariable model incorporating relevant confounding factors, demonstrated a significantly better outcome with platinum–based regimens compared to topotecan. Median survival after initiation of 2nd line in platinum-sensitive patients was longer (<i>p</i> = 0.056) for those re-challenged with platinum–based regimen (n = 7): 6.8mo (6.1-not reported (NR)), compared with those switched to a different treatment (n = 27): 4.5 mo (2.6–6.6) for extensive stage patients, and a non-significant difference was also observed for limited stage patients. <i>Conclusion:</i> To our knowledge, this is one of the largest real-world studies of SCLC patients. OS for SCLC patients was similar to that reported in clinical trials. PS for extensive stage patients and sex for limited stage patients were significant correlates of prognosis. Re-challenge of the platinum–based doublet was associated with longer OS compared to switching treatment in extensive stage patients.
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spelling doaj.art-cc0d8032e94843db9d6a1ded6f2daf952023-11-22T11:28:46ZengMDPI AGCurrent Oncology1198-00521718-77292021-01-0128131733110.3390/curroncol28010036Real World Analysis of Small Cell Lung Cancer Patients: Prognostic Factors and Treatment OutcomesSarah Sharman Moser0Jair Bar1Inna Kan2Keren Ofek3Raanan Cohen4Nikhil Khandelwal5Varda Shalev6Gabriel Chodick7Nava Siegelmann-Danieli8Maccabitech, Maccabi Institute for Research & Innovation, Maccabi Healthcare Services, Tel Aviv 6812509, IsraelSheba Medical Center, Institute of Oncology, Tel Hashomer, Ramat Gan 5262000, IsraelAbbvie Biopharmaceuticals Ltd., Hod Hasharon 4524075, IsraelAbbvie Biopharmaceuticals Ltd., Hod Hasharon 4524075, IsraelAbbvie Biopharmaceuticals Ltd., Hod Hasharon 4524075, IsraelAbbvie Inc., Chicago, IL 60064, USAMaccabitech, Maccabi Institute for Research & Innovation, Maccabi Healthcare Services, Tel Aviv 6812509, IsraelMaccabitech, Maccabi Institute for Research & Innovation, Maccabi Healthcare Services, Tel Aviv 6812509, IsraelMaccabitech, Maccabi Institute for Research & Innovation, Maccabi Healthcare Services, Tel Aviv 6812509, IsraelIn this observational study, we assessed treatment patterns and prognostic factors in patients with small cell lung cancer (SCLC) in a large state-mandated healthcare organization in Israel. <i>Methods:</i> All incident cases with histologically confirmed SCLC who initiated systemic anti-cancer treatment between 2011 and 2017 were identified. Treatment patterns and overall survival (OS) were evaluated for each line of therapy. <i>Results:</i> A total of 235 patients were identified (61% male, median age 64 years, 95% ever smokers, 64% had extensive stage). The first-line treatment was platinum–etoposide regimen for 98.7% of the cohort. The second and third-line regimen were given to 43% and 12% of patients, respectively. Mean OS for extensive and limited stage patients was 9.1 and 23.5 months respectively. In a multivariable model, increased risk for mortality was observed among patients with an ECOG performance status (PS) of 2 compared to a PS of 0–1 for the extensive stage patients (Hazard ratio (HR) = 1.63, 95% confidence ratios (CI): 1.00–2.65); and for males compared to females for the limited stage patients (HR = 2.17; 95% CI: 1.12–4.20). Regarding all 2nd line patients in a multivariable model incorporating relevant confounding factors, demonstrated a significantly better outcome with platinum–based regimens compared to topotecan. Median survival after initiation of 2nd line in platinum-sensitive patients was longer (<i>p</i> = 0.056) for those re-challenged with platinum–based regimen (n = 7): 6.8mo (6.1-not reported (NR)), compared with those switched to a different treatment (n = 27): 4.5 mo (2.6–6.6) for extensive stage patients, and a non-significant difference was also observed for limited stage patients. <i>Conclusion:</i> To our knowledge, this is one of the largest real-world studies of SCLC patients. OS for SCLC patients was similar to that reported in clinical trials. PS for extensive stage patients and sex for limited stage patients were significant correlates of prognosis. Re-challenge of the platinum–based doublet was associated with longer OS compared to switching treatment in extensive stage patients.https://www.mdpi.com/1718-7729/28/1/36SCLCsurvivalobservational studyplatinum sensitivelimited stage
spellingShingle Sarah Sharman Moser
Jair Bar
Inna Kan
Keren Ofek
Raanan Cohen
Nikhil Khandelwal
Varda Shalev
Gabriel Chodick
Nava Siegelmann-Danieli
Real World Analysis of Small Cell Lung Cancer Patients: Prognostic Factors and Treatment Outcomes
Current Oncology
SCLC
survival
observational study
platinum sensitive
limited stage
title Real World Analysis of Small Cell Lung Cancer Patients: Prognostic Factors and Treatment Outcomes
title_full Real World Analysis of Small Cell Lung Cancer Patients: Prognostic Factors and Treatment Outcomes
title_fullStr Real World Analysis of Small Cell Lung Cancer Patients: Prognostic Factors and Treatment Outcomes
title_full_unstemmed Real World Analysis of Small Cell Lung Cancer Patients: Prognostic Factors and Treatment Outcomes
title_short Real World Analysis of Small Cell Lung Cancer Patients: Prognostic Factors and Treatment Outcomes
title_sort real world analysis of small cell lung cancer patients prognostic factors and treatment outcomes
topic SCLC
survival
observational study
platinum sensitive
limited stage
url https://www.mdpi.com/1718-7729/28/1/36
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