Adjuvant pembrolizumab therapy for completely resected stage I lung adenocarcinoma with micropapillary or solid histological subtypes: a single-center, single-arm, phase 2 trial.

Background: This study aimed to evaluate the efficacy and safety of adjuvant pembrolizumab in patients with completely resected stage I lung adenocarcinoma with micropapillary or solid-pattern (MPSOL).

Methods: This was a single-center, single-arm phase 2 study (ClinicalTrials.gov identifier: NCT03254004).

Impact of tumor size by clinical N subclassification and histology in trimodality-treated N2 non-small cell lung cancer.

The evolving TNM classification has emphasized the tumor size's role in NSCLC prognosis, reclassifying stage IIIA patients from the previous edition as stage IIIB (T3-4N2M0, 8th edition). However, the prognostic implications of tumor size and survival in stage III NSCLC patients undergoing neoadjuvant therapy remain unexplored. Therefore, we investigated the association between tumor size and mortality in N2 non-small cell lung cancer (NSCLC) patients undergoing neoadjuvant concurrent chemoradiotherapy followed by surgery (trimodality therapy), considering the number of metastatic N2 stations and histology.

Clinical N Staging Subclassification for Stage III-N2 NSCLC Patients Undergoing Trimodality Therapy: A Good Beginning Is Half the Battle.

Background: Lung cancer patients with stage III-N2 disease may benefit from the subclassification of nodal involvement before decision-making. We aimed to evaluate whether the clinical N descriptor subclassification predicts prognosis in patients undergoing trimodality therapy for stage III-N2 non-small cell lung cancer.

Methods: Using our institutional registry between 2003 and 2019, we analyzed 899 consecutive patients with stage III-N2 non-small cell lung cancer undergoing neoadjuvant concurrent chemoradiotherapy followed by surgery.

Efficacy of contrast versus non-contrast CT surveillance among patients surviving two years without recurrence after surgery for stage I lung cancer.

Contrast-enhanced chest CT (CECT) is more sensitive than non-contrast-enhanced chest CT (NCECT), but NCECT may have comparable efficacy in detecting new primary lung cancer among stage I NSCLC survivors after two years of surveillance. This study aimed to evaluate the efficacy of NCECT versus CECT for surveillance among stage I NSCLC patients surviving two years after curative resection without disease recurrence. We conducted a retrospective cohort study of patients with stage I NSCLC who underwent curative-intent lung resection between January 2009 and December 2017 using the Registry for Thoracic Cancer Surgery at the Samsung Medical Center, Seoul, Korea.

Association of Obesity and Skeletal Muscle with Postoperative Survival in Non-Small Cell Lung Cancer.

Background A comprehensive assessment of skeletal muscle health is crucial to understanding the association between improved clinical outcomes and obesity as defined by body mass index (BMI; calculated as weight in kilograms divided by height in meters squared) in lung cancer, but limited studies have been conducted on this topic. Purpose To investigate the association between BMI-defined obesity and survival in patients with non-small cell lung cancer who underwent curative resection, with a specific focus on the status of skeletal muscle assessed at CT. Materials and Methods This retrospective study investigated Korean patients with non-small cell lung cancer who underwent curative resection between January 2008 and December 2019.

Dissecting transcriptome signals of anti-PD-1 response in lung adenocarcinoma.

Immune checkpoint blockades are actively adopted in diverse cancer types including metastatic melanoma and lung cancer. Despite of durable response in 20-30% of patients, we still lack molecular markers that could predict the patient responses reliably before treatment. Here we present a composite model for predicting anti-PD-1 response based on tumor mutation burden (TMB) and transcriptome sequencing data of 85 lung adenocarcinoma (LUAD) patients who received anti-PD-(L)1 treatment.

Enhancing Identification of High-Risk cN0 Lung Adenocarcinoma Patients Using MRI-Based Radiomic Features.

Purpose: This study aimed to develop a magnetic resonance imaging (MRI)-based radiomics model to predict high-risk pathologic features for lung adenocarcinoma: micropapillary and solid pattern (MPsol), spread through air space, and poorly differentiated patterns.

Materials And Methods: As a prospective study, we screened clinical N0 lung cancer patients who were surgical candidates and had undergone both 18F-fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET/CT) and chest CT from August 2018 to January 2020. We recruited patients meeting our proposed imaging criteria indicating high-risk, that is, poorer prognosis of lung adenocarcinoma, using CT and FDG PET/CT.

Distinct Recurrence Pattern and Survival Outcomes of Invasive Mucinous Adenocarcinoma of the Lung: The Potential Role of Local Therapy in Intrapulmonary Spread.

Background: Invasive mucinous adenocarcinoma (IMA) is distinct from non-mucinous adenocarcinoma, but studies on recurrent IMA are scarce. Thus, this study aimed to evaluate the recurrence patterns of IMA and the role of pulmonary local therapy (LT) in resectable pulmonary recurrence of IMA.

Methods: The study reviewed 403 patients with surgically resected IMA between 1998 and 2018.

Lung cancer surgery for patients with reduced left ventricular ejection fraction: clinical outcomes and long-term survival.

Objectives: The aim of the study was to evaluate the clinical outcomes of patients with lung cancer in whom left ventricular ejection fraction (LVEF) was reduced.

Methods: A total of 9814 patients with lung cancer who underwent pulmonary resection from 2010 to 2018 were included for the study. Fifty-six (0.

Diagnostic Performance of Endosonography to Detect Mediastinal Lymph Node Metastasis in Patients with Radiological N1 Non-Small Cell Lung Cancer.

Purpose: Guidelines recommend that non-small cell lung cancer (NSCLC) patients with suspected hilar lymph node (LN) metastases should undergo invasive mediastinal LN staging prior to surgical treatment via endosonography. We evaluated the diagnostic performance of endosonography for detecting occult mediastinal metastases (OMM) and determined the factors associated with OMM in NSCLC patients with radiological N1.

Materials And Methods: Patients with confirmed primary NSCLC with radiological N1 who underwent endosonography for nodal staging assessment from January 2013 to December 2019 were retrospectively analyzed.

Different prognostic role of EGFR mutation according to the IASLC histological grade in patients with resected early-stage lung adenocarcinoma.

Aims: The prognostic role of EGFR mutations remains controversial. We aimed to evaluate the prognostic role of EGFR mutation in consideration of the IASLC histological grade in patients with resected early-stage lung adenocarcinoma.

Methods And Results: A total of 3297 patients with stages I-IIA resected lung adenocarcinoma who had had EGFR mutation tests between January 2014 and December 2019 at the Samsung Medical Center, Seoul, Korea were included.