Koichi Sayama

Kawasaki, Japan

Last Updated: 09/26/2026

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Found 30 publications

Clinical Outcomes of Later-Generation EGFR-TKIs for Uncommon EGFR Mutations in NSCLC: A Multicenter Real-World Study.

Clinical Outcomes of Later-Generation EGFR-TKIs for Uncommon EGFR Mutations in NSCLC: A Multicenter Real-World Study.

Journal: Thoracic cancer

Published: July 17, 2025

Real-World Efficacy and Safety of Atezolizumab for Advanced Non-Small Cell Lung Cancer in Japan: A Retrospective Multicenter Analysis.

Real-World Efficacy and Safety of Atezolizumab for Advanced Non-Small Cell Lung Cancer in Japan: A Retrospective Multicenter Analysis.

Journal: Journal of clinical medicine

Published: November 19, 2024

Impact of long COVID on the health-related quality of life of Japanese patients: A prospective nationwide cohort study.

Impact of long COVID on the health-related quality of life of Japanese patients: A prospective nationwide cohort study.

Journal: Respiratory investigation

Published: November 19, 2024

Health Insurance and Its Psychosocial Correlates in Patients with Advanced Lung Cancer in Japan.

Health Insurance and Its Psychosocial Correlates in Patients with Advanced Lung Cancer in Japan.

Journal: JMA journal

Published: September 30, 2024

Cough and sputum in long COVID are associated with severe acute COVID-19: a Japanese cohort study.

Cough and sputum in long COVID are associated with severe acute COVID-19: a Japanese cohort study.

Journal: Respiratory research

Published: July 22, 2023

Comprehensive analysis of long COVID in a Japanese nationwide prospective cohort study.

Comprehensive analysis of long COVID in a Japanese nationwide prospective cohort study.

Journal: Respiratory investigation

Published: March 13, 2023

Unilateral Autoimmune Pulmonary Alveolar Proteinosis with Polymyositis-related Interstitial Lung Disease.

Unilateral Autoimmune Pulmonary Alveolar Proteinosis with Polymyositis-related Interstitial Lung Disease.

Journal: Internal medicine (Tokyo, Japan)

Published: April 04, 2022

Comprehensive and long-term surveys of COVID-19 sequelae in Japan, an ambidirectional multicentre cohort study: study protocol.

Comprehensive and long-term surveys of COVID-19 sequelae in Japan, an ambidirectional multicentre cohort study: study protocol.

Journal: BMJ open respiratory research

Published: June 10, 2021

Longitudinal Assessment of Prognostic Understanding in Patients with Advanced Lung Cancer and Its Association with Their Psychological Distress.

Longitudinal Assessment of Prognostic Understanding in Patients with Advanced Lung Cancer and Its Association with Their Psychological Distress.

Journal: The oncologist

Published: March 25, 2021

Trends of concerns from diagnosis in patients with advanced lung cancer and their family caregivers: A 2-year longitudinal study.

Trends of concerns from diagnosis in patients with advanced lung cancer and their family caregivers: A 2-year longitudinal study.

Journal: Palliative medicine

Published: March 25, 2021

Clinical characteristics of patients with not well-controlled severe asthma in Japan: Analysis of the Keio Severe Asthma Research Program in Japanese population (KEIO-SARP) registry.

Clinical characteristics of patients with not well-controlled severe asthma in Japan: Analysis of the Keio Severe Asthma Research Program in Japanese population (KEIO-SARP) registry.

Journal: Allergology international : official journal of the Japanese Society of Allergology

Published: October 09, 2019

Predictive and modifying factors of bone mineral density decline in patients with COPD.

Predictive and modifying factors of bone mineral density decline in patients with COPD.

Journal: Respiratory medicine

Published: October 19, 2018

Showing 1-12 of 30

Last Updated: 09/26/2026