Initial Treatment Modalities in Patients with Newly Diagnosed Primary Lung Cancer in Japan

Treatment for lung cancer continues to rapidly evolve. Here, we describe trends in the initial treatment of adults with newly diagnosed primary non-small-cell lung cancer in Japan. This retrospective cohort study used data from JMDC Inc. Claims Database from 2015 to 2023. Adults with lung cancer, co...

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Main Authors: Qingqing Hu, Kuan-Chih Huang, Ko Nakajo, Yongjing Zhang, Hong Qiu
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Current Oncology
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Online Access:https://www.mdpi.com/1718-7729/32/1/32
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author Qingqing Hu
Kuan-Chih Huang
Ko Nakajo
Yongjing Zhang
Hong Qiu
author_facet Qingqing Hu
Kuan-Chih Huang
Ko Nakajo
Yongjing Zhang
Hong Qiu
author_sort Qingqing Hu
collection DOAJ
description Treatment for lung cancer continues to rapidly evolve. Here, we describe trends in the initial treatment of adults with newly diagnosed primary non-small-cell lung cancer in Japan. This retrospective cohort study used data from JMDC Inc. Claims Database from 2015 to 2023. Adults with lung cancer, confirmed using a combination of diagnosis, treatment, or procedure codes, were enrolled. A total of 9373 patients were included, with a mean age of approximately 59 years. The median time from diagnosis to treatment initiation ranged from 38 days in patients treated surgically to 25 days in patients with distant metastases. The observed trends were a decrease in the percentage of newly diagnosed patients with distant metastases, a decline in chemotherapy use in patients with early-stage disease, and in advanced disease, a more than doubling in the use of targeted therapy, including checkpoint inhibitors, while radiotherapy and chemotherapy tended to decrease. The observed changes in treatment were driven mainly by the increased use of targeted therapies including checkpoint inhibitors and are aligned with current treatment guidelines in Japan. The observation of fewer patients with distant metastases over time possibly indicates earlier detection. Additional research is needed to understand if new therapies are being extended to older and frail patients with lung cancer in Japan.
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publishDate 2025-01-01
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series Current Oncology
spelling doaj-art-93e7d24f3476428fbac9053c5132e0ab2025-01-24T13:28:25ZengMDPI AGCurrent Oncology1198-00521718-77292025-01-013213210.3390/curroncol32010032Initial Treatment Modalities in Patients with Newly Diagnosed Primary Lung Cancer in JapanQingqing Hu0Kuan-Chih Huang1Ko Nakajo2Yongjing Zhang3Hong Qiu4Global Epidemiology, Office of the Chief Medical Officer, Janssen Research & Development, LLC, Shanghai 200231, ChinaGlobal Epidemiology, Office of the Chief Medical Officer, Janssen Research & Development, LLC, Taipei 104, TaiwanGlobal Epidemiology, Office of the Chief Medical Officer, Janssen Research & Development, LLC, Tokyo 101-0065, JapanGlobal Epidemiology, Office of the Chief Medical Officer, Janssen Research & Development, LLC, Shanghai 200231, ChinaGlobal Epidemiology, Office of the Chief Medical Officer, Janssen Research & Development, LLC, Titusville, NJ 08560, USATreatment for lung cancer continues to rapidly evolve. Here, we describe trends in the initial treatment of adults with newly diagnosed primary non-small-cell lung cancer in Japan. This retrospective cohort study used data from JMDC Inc. Claims Database from 2015 to 2023. Adults with lung cancer, confirmed using a combination of diagnosis, treatment, or procedure codes, were enrolled. A total of 9373 patients were included, with a mean age of approximately 59 years. The median time from diagnosis to treatment initiation ranged from 38 days in patients treated surgically to 25 days in patients with distant metastases. The observed trends were a decrease in the percentage of newly diagnosed patients with distant metastases, a decline in chemotherapy use in patients with early-stage disease, and in advanced disease, a more than doubling in the use of targeted therapy, including checkpoint inhibitors, while radiotherapy and chemotherapy tended to decrease. The observed changes in treatment were driven mainly by the increased use of targeted therapies including checkpoint inhibitors and are aligned with current treatment guidelines in Japan. The observation of fewer patients with distant metastases over time possibly indicates earlier detection. Additional research is needed to understand if new therapies are being extended to older and frail patients with lung cancer in Japan.https://www.mdpi.com/1718-7729/32/1/32lung cancertargeted therapycheckpoint inhibitorchemotherapyJapan
spellingShingle Qingqing Hu
Kuan-Chih Huang
Ko Nakajo
Yongjing Zhang
Hong Qiu
Initial Treatment Modalities in Patients with Newly Diagnosed Primary Lung Cancer in Japan
Current Oncology
lung cancer
targeted therapy
checkpoint inhibitor
chemotherapy
Japan
title Initial Treatment Modalities in Patients with Newly Diagnosed Primary Lung Cancer in Japan
title_full Initial Treatment Modalities in Patients with Newly Diagnosed Primary Lung Cancer in Japan
title_fullStr Initial Treatment Modalities in Patients with Newly Diagnosed Primary Lung Cancer in Japan
title_full_unstemmed Initial Treatment Modalities in Patients with Newly Diagnosed Primary Lung Cancer in Japan
title_short Initial Treatment Modalities in Patients with Newly Diagnosed Primary Lung Cancer in Japan
title_sort initial treatment modalities in patients with newly diagnosed primary lung cancer in japan
topic lung cancer
targeted therapy
checkpoint inhibitor
chemotherapy
Japan
url https://www.mdpi.com/1718-7729/32/1/32
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AT konakajo initialtreatmentmodalitiesinpatientswithnewlydiagnosedprimarylungcancerinjapan
AT yongjingzhang initialtreatmentmodalitiesinpatientswithnewlydiagnosedprimarylungcancerinjapan
AT hongqiu initialtreatmentmodalitiesinpatientswithnewlydiagnosedprimarylungcancerinjapan