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Purpose: Inflammation and neutrophils play a central role in both COVID-19 disease and cancer. We aimed to assess the impact of pre-existing tumor-related inflammation on COVID-19 outcomes in patients with cancer and to elucidate the role of circulating neutrophil subpopulations., Methods: We conducted a multicenter retrospective analysis of 524 patients with cancer and SARS-CoV-2 infection, assessing the relationship between clinical outcomes and circulating inflammatory biomarkers collected before and during COVID-19 infection. Additionally, a single-center prospective cohort study provided data for an exploratory analysis, assessing the immunophenotype of circulating neutrophils and inflammatory cytokines. The primary endpoints were 30-day mortality and the severity of COVID-19 disease., Results: Prior to COVID-19, 25% of patients with cancer exhibited elevated dNLR, which increased to 55% at the time of COVID-19 diagnosis. We developed the FLARE score, incorporating both tumor- and infection-induced inflammation, which categorized patients into four prognostic groups. The poor prognostic group had a 30-day mortality rate of 68%, significantly higher than the 23% in the favorable group ( p < 0.0001). This score proved to be an independent predictor of early mortality. This prospective analysis revealed a shift towards immature forms of neutrophils and higher IL-6 levels in patients with cancer and severe COVID-19 infection., Conclusions: A pre-existing tumor-induced pro-inflammatory state significantly impacts COVID-19 outcomes in patients with cancer. The FLARE score, derived from circulating inflammatory markers, emerges as an easy-to-use, globally accessible, effective tool for clinicians to identify patients with cancer at heightened risk of severe COVID-19 complications and early mortality who might benefit most from immediate and intensive treatment strategies. Furthermore, our findings underscore the significance of immature neutrophils in the progression of COVID-19 in patients with cancer, advocating for further investigation into how these cells contribute to both cancer and COVID-19 disease.

Objectives: The S-REAL study aimed to assess the effectiveness of durvalumab as consolidation therapy after definitive chemoradiotherapy (CRT) in a real-world cohort of patients with locally advanced, unresectable stage III non-small cell lung cancer (LA-NSCLC) included in a Spanish early access program (EAP)., Methods: In this multicentre, observational, retrospective study we analysed data from patients treated in 39 Spanish hospitals, who started intravenous durvalumab (10 mg/kg every 2 weeks) between September 2017 and December 2018. The primary endpoint was progression-free survival (PFS). Secondary endpoints included patient characterization and adverse events of special interest (AESI)., Results: A total of 244 patients were followed up for a median of 21.9 months [range 1.2-34.7]. Median duration of durvalumab was 45.5 weeks (11.4 months) [0-145]. Median PFS was 16.7 months (95% CI 12.2-25). No remarkable differences in PFS were observed between patients with programmed cell death-ligand 1 (PD-L1) expression ≥ 1% or < 1% (16.7 versus 15.6 months, respectively). However, PFS was higher in patients who had received prior concurrent CRT (cCRT) versus sequential CRT (sCRT) (20.6 versus 9.4 months). AESIs leading to durvalumab discontinuation were registered in 11.1% of patients., Conclusions: These results are in line with prior published evidence and confirm the benefits of durvalumab in the treatment of LA-NSCLC patients in a real-world setting. We also observed a lower incidence of important treatment-associated toxicities, such as pneumonitis, compared with the pivotal phase III PACIFIC clinical study., (© 2024. The Author(s), under exclusive licence to Federación de Sociedades Españolas de Oncología (FESEO).)

Objective: Patients with lung cancer are at increased risk of SARS-CoV-2 infection and severe complications from COVID-19, but information on the efficacy of anti-SARS-CoV-2 vaccine in these patients is scarce. We aimed at evaluating the safety and immunogenicity of COVID-19 vaccines in this population., Patients and Methods: The prospective, nationwide SOLID substudy, enrolled adults with lung cancer who were fully vaccinated against COVID-19. Serum anti-SARS-CoV-2 IgG antibody levels were quantitatively assessed two weeks and six months after receipt of the last dose using a chemiluminescent microparticle immunoassay. Multivariate odds ratios for the association between demographic and clinical factors and seronegativity after vaccination were estimated., Results: 1973 lung cancer patients were enrolled. Most patients had stage IV disease (66%) and were receiving active cancer treatment (82.7%). No significant differences were found in the probability of being seronegative for anti-SARS-CoV-2 IgG antibodies after full vaccination between patients who were receiving active cancer treatment and those who were not (p = 0.396). The administration of immunotherapy or oral targeted therapy and immunization with mRNA-1273 COVID-19 vaccine were factors independently associated with increased odds of being seropositive after vaccination. From all patients, 1405 received the second dose of vaccine and high levels of antibody titers were observed in 93.6% of patients two weeks after second dose. At six months, multivariate logistic regression analysis showed that performance status ≥ 2 was independently associated with a higher probability of being seronegative after full vaccination with an OR 4.15. On the other hand, received chemotherapy or oral target therapy and vaccination with mRNA-1273 were a factor independently associated with lower odds of being seronegative after full vaccination with an OR 0.52, 0.37 and 0.34, respectively., Conclusions: Lung cancer patients can safely achieve a strong immune response against SARS-CoV-2 after full vaccination, regardless of the cancer treatment received., Trial Registration: NCT04407143., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)

Aim: To define high tumor burden (HTB) in non-small-cell lung cancer. Methods: A total of five oncologists initiated the project, selecting 66 participants, and elaborated a questionnaire with 26 statements using the Delphi method with a 9-point Likert scale of agreement. Results: Factors with moderate strength of consensus were identified, including a sum of the longest diameter of lesions ≥10 cm, elevated Lactate dehydrogenase, hepatic involvement, lymphangitis carcinomatosis, brain involvement unapproachable with local techniques and pericardial effusion. There was a consensus against increases in tumor markers and asymptomatic brain involvement being related to HTB. HTB was considered a relevant factor for treatment selection supporting the choice of combination regimens versus immunotherapy only. Conclusion: In this Delphi study, experts defined several factors associated with HTB in non-small cell lung cancer.

Oncology patients are more susceptible to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection due to hospital contact and an immunological system that can be compromised by antineoplastic therapy and supportive treatments. Certain similarities have been described in the physiopathology of coronavirus disease 2019 (COVID-19) and lung cancer (LC) that may explain the higher probability of these patients of developing a more serious disease with more frequent hospitalizations and even death, especially with the addition of smoking, cardiovascular and respiratory comorbidities, old age and corticosteroids use. Pre-existing lesions and cancer therapies change the normal architecture of the lungs, so diagnostic scales such as COVID-19 Reporting and Data System (CO-RADS) are of vital importance for a correct diagnosis and patient homogenization, with a high inter-observer correlation. Moreover, anticancer treatments have required an adaptation to reduce the number of visits to the hospital [hypofractionated radiotherapy (RT), larger intervals between chemotherapy cycles, delay in follow-up tests, among others]. In a way, this has also caused a delay in the diagnosis of new cancers. On the other hand, vaccination has had a positive impact on the mortality of these patients, who maintain a similar seroprevalence to the rest of the population, with a similar impact in mortality., Competing Interests: The authors declare that they have no conflicts of interest., (© The Author(s) 2023.)

Recent data from a phase 3 trial have shown that the addition of immunotherapy to neoadjuvant chemotherapy improves event-free survival in patients with non-small-cell lung cancer (NSCLC). This is the first positive phase 3 trial in this setting, although several phase 3 trials are currently investigating the efficacy of neoadjuvant and adjuvant immunotherapy in resectable NSCLC., Competing Interests: Conflict-of-interest statement: All authors declare no conflict of interests related to this article., (©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.)

Background and Aim: Lung cancer is the leading cause of cancer death worldwide and the majority of the patients have advanced/metastatic disease on presentation. In clinical practice, several biomarkers and clinical factors are taken into account when choosing the best treatment option in advanced non-small-cell lung cancer (NSCLC). One potential marker may be tumor burden (TB). However, this concept is not specifically defined in NSCLC, and usually, it is used as a synonymous for aggressive disease., Methods: A non-systematic literature review was conducted. We searched for eligible randomized controlled trials from PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials with a cutoff at February 2021. The keywords included non-small-cell lung cancer, tumor burden, aggressive disease, prognosis biomarker, predictive biomarker, and immunotherapy., Results and Conclusions: This review addresses the definition of TB in advanced NSCLC, the pathophysiology of high TB lesions, and the role of TB as a prognosis biomarker., Relevance for Patients: The concept of aggressive disease, as high tumor burden definition, remains poorly defined and rarely considered in clinical research or clinical practice in oncology. The identification of this subgroup of patients could be interesting for defining and optimizing a more aggressive treatment strategy., Competing Interests: Luis Cabezón Gutiérrez declares the following conflicts of interest: Advisory role; Boehringer-Ingelheim, AstraZeneca, Roche and Brystol Myers Squibb. Speakers’ bureau; Roche, AstraZeneca, Brystol Myers Squibb, Merck Serono, Ipsen Pharma, Lilly and Amgen, Angelini, Grunenthal, Kyowa Kirin, Mudipharma, Pfizer, Roche, Rovi, Leo Pharma and Boehringer Ingelheim. Xabier Mielgo-Rubio declares the following conflicts of interest: Advisory role; Boehringer-Ingelheim, AstraZeneca, Brystol Myers Squibb. Speakers’ bureau; Roche, AstraZeneca, Brystol Myers Squibb, MSD, Abbott. Research funding; Brystol Myers Squibb. Maria Serono, Raquel Cervera-Calero, and Oliver Higuera declare no conflicts of interests., (Copyright: © 2022 Author(s).)

In recent years, major advances have been achieved in our understanding of non-small-cell lung cancer (NSCLC) with oncogenic driver alterations and in the specific treatment of these with tyrosine kinase inhibitors. Currently, state-of-the-art management of patients with NSCLC (particularly adenocarcinoma or non-adenocarcinoma but with mild tobacco exposure) consists of the determination of EGFR , ALK , ROS1  and BRAF status, as they have US FDA and EMA approved targeted therapies. The increase in molecular knowledge of NSCLC and the development of drugs against other targets has settled new therapeutic indications. In this review we have incorporated the development around MET, KRAS and NTRK in the diagnosis of NSCLC given the therapeutic potential that they represent, as well as the drugs approved for these indications.

The management of patients with advanced non-small cell lung carcinoma (NSCLC) has undergone major changes in recent years. On the one hand, improved sensitivity of diagnostic tests, both radiological and endoscopic, has altered the way patients are staged. On the other hand, the arrival of new drugs with antitumoral activity, such as targeted therapies or immunotherapy, has changed the prognosis of patients, improving disease control and prolonging survival. Finally, the development of radiotherapy and surgical and interventional radiology techniques means that radical ablative treatments can be performed on metastases in any location in the body. All of these advances have impacted the treatment of patients with advanced lung cancer, especially in a subgroup of these patients in which all of these treatment modalities converge. This poses a challenge for physicians who must decide upon the best treatment strategy for each patient, without solid evidence for one optimal mode of treatment in this patient population. The aim of this article is to review, from a practical and multidisciplinary perspective, published evidence on the management of oligometastatic NSCLC patients. We evaluate the different alternatives for radical ablative treatments, the role of primary tumor resection or radiation, the impact of systemic treatments, and the therapeutic sequence. In short, the present document aims to provide clinicians with a practical guide for the treatment of oligometastatic patients in routine clinical practice., Competing Interests: Conflict-of-interest statement: The authors have no conflicts of interest to declare., (©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.)

The treatment of small cell lung cancer (SCLC) is a challenge for all specialists involved. New treatments have been added to the therapeutic armamentarium in recent months, but efforts must continue to improve both survival and quality of life. Advances in surgery and radiotherapy have resulted in prolonged survival times and fewer complications, while more careful patient selection has led to increased staging accuracy. Developments in the field of systemic therapy have resulted in changes to clinical guidelines and the management of patients with advanced disease, mainly with the introduction of immunotherapy. In this article, we describe recent improvements in the management of patients with SCLC, review current treatments, and discuss future lines of research., Competing Interests: Conflict-of-interest statement: Mielgo-Rubio X declares the following conflicts of interest: Advisory role; Boehringer-Ingelheim, Astra Zeneca, Brystol Myers Squibb. Speakers’ bureau; Roche, Astra Zeneca, Brystol Myers Squibb, MSD, Abbott. Research funding; Brystol Myers Squibb. The other authors have no conflicts of interest to declare., (©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.)

The aim of neoadjuvant treatment in non-small cell lung cancer (NSCLC) is to eliminate micrometastatic disease to facilitate surgical resection. Neoadjuvant chemotherapy (ChT) in localised NSCLC has numerous advantages over other therapeutic modalities and is considered standard treatment in resectable disease. Treatment with immune checkpoint inhibitors (ICI) improves long-term survival in advanced disease and has a better toxicity profile than conventional therapies. These immunotherapy agents (anti-PD1/PD-L1), administered with or without ChT, are currently being evaluated in the preoperative setting, with initial results showing better pathological response rates and more long-term benefits. Importantly, these drugs do not appear to increase the rate of severe adverse effects and/or postoperative complications. However, several questions still need to be resolved, including the identification of predictive biomarkers; comparative studies of immunotherapy alone vs combined treatment with ChT and/or radiotherapy; the optimal duration of treatment; the timing of surgery; the need for adjuvant treatment; appropriate radiologic evaluation and mediastinal staging; and the correlation between pathological response and survival outcomes. Here we review the current evidence for immunotherapy from a multidisciplinary perspective and discuss current and future controversies., Competing Interests: Conflict-of-interest statement: Authors declare no conflict of interests related to this article., (©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.)

Introduction: Durvalumab is the standard-of-care as consolidation therapy after chemo-radiotherapy in stage III unresectable non-small cell lung cancer (NSCLC); however, its activity across patients with NSCLC harbouring driver genomic alterations (dGA) is poorly characterised., Material and Methods: Multicentre retrospective study including patients with stage III unresectable NSCLC treated with durvalumab after chemo-radiotherapy between April 2015 and October 2020 at 26 centres in Europe and America. Clinical and biological data were collected; dGA included: EGFR/BRAF/KRAS mutations (m) and ALK/ROS1 rearrangements (r). We evaluated progression-free survival (PFS) and overall survival (OS) based on dGA., Results: Out of 323 patients included, 43 patients had one dGA: KRASm (n = 26; 8 G12C), EGFRm (n = 8; 6 del19/ex21), BRAFm (n = 5; 4 V600E) and ALKr (n = 4). The median age was 66 years [39-84], gender ratio 1:1, with 98% performance status (PS) 0-1 and 19% non-smokers; 88% had adenocarcinoma. PD-L1 was positive in 85% (n = 4 missing). In the whole cohort, the median PFS was 17.5 months (mo.) (95% CI, 13.2-24.9) and median OS 47 mo (95%CI, 47-not reached [NR]). No statistically significant differences in terms of the median PFS were observed between patients with dGA vs. non-dGA: 14.9 mo (95% CI, 8.1-NR) vs. 18 mo. (95% CI, 13.4-28.3) (P = 1.0); however, when analysed separately: the median PFS was NR (11.3-NR) in the KRASm G12C vs. 8.1 mo (5.8-NR) in the EGFRm del19/ex21 vs. 7.8 mo (7.7-NR) in the BRAFm V600E/ALKr (P = 0.02)., Conclusions: We observed limited activity of durvalumab consolidation in patients with stage III unresectable NSCLC with EGFR/BRAFm and ALKr but not for those harbouring KRASm. Larger prospective studies are needed to confirm these findings., Competing Interests: Conflict of interest statement MMj: advisory and consultancy honoraria from Roche, Merck, BristolMyers Squibb, AstraZeneca, Amgen, Boehringer, Sanofi and Takeda; speaker honoraria from Roche, Merck, Bristol-Myers Squibb, AstraZeneca, Bayer, Amgen, Pfizer and Boehringer; grants from AstraZeneca and BristolMyers Squib, and travel/accommodation expenses from Roche, Merck and Lilly. RLC: honoraria from Kyowa Kirin, Pierre-Fabre, Takeda, AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, Novartis, Roche, Merck Serono, Pfizer; consulting or advisory role from Roche, Astra-Zeneca, Boehringer Ingelheim, Aristo, Novartis; research funding from Roche, Bristol-Myers Squibb, MSD, Boehringer Ingelheim, AstraZeneca. JBB: grants and personal fees from Roche-Genentech, Pfizer, MSD, BMS, Astrazeneca, Novartis, Boehringer-Ingelheim, Vifor, Sanofi, LEO Pharma, outside the submitted work. SP: Consulting, advisory role or lectures from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Eli Lilly, Merck, Novartis, Roche, Amgen. MT: travel grants from Roche, Bristol-Myers Squibb, AstraZeneca, Takeda; honoraria as medical writer from Novartis, Amgen. GZ: research grants from Roche-France, Bristol-Myers Squibb, and Takeda outside of the submitted work; perceived fees from Bristol-Myers Squibb, AstraZeneca, Pfizer, and Boehringer Ingelheim outside the submitted work; and reimbursement for international meetings assistance from AbbVie, Merck Sharp & Dohme, AstraZeneca, Bristol-Myers Squibb, and Roche-France. XM-R: Research grant funding from Brystol-Myers Squibb; consulting, advisory role or lectures from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim; honoraria (self) from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Pfizer, Roche, MSD; clinical trials research from Boehringer Ingelheim, Pfizer, Roche, Abbvie; travel, accommodations and expenses from Roche, Pfizer, Brysto-Myers Squibb. JB: educational grants by AMGEN. MSch: speaker and advisory role honoraria, travel accommodations from AMGEN, AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, Janssen, Novartis, Pfizer, Roche, Takeda; personal research support from AMGEN, Dracen Pharmaceuticals, Siemens Healthineers; institutional research support from Boehringer Ingelheim, Bristol-Myers Squibb, MSD, Novartis, Pfizer, Roche. EN: research support from Roche, Merck Serono, Bristol Myers Squibb and Pfizer and participated in advisory boards or lectures from Bristol Myers Squibb, Merck Serono, Merck Sharpe & Dohme, Lilly, Roche, Pfizer, Takeda, Bayer, Boehringer Ingelheim, Amgen and AstraZeneca. DS: Consulting, advisory role, honoraria from AstraZeneca, Merck Sharp & Dohme, Bristol-Myers Squibb, Boehringer Ingelheim, Sanofi, Eli Lilly; travel grants from Roche. RGC: Consulting, advisory role or lectures from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Takeda, Janseen, MSD, Roche, Pfizer, Eli Lilly, Amgen, Sanofi; honoraria (self) from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Pfizer, Roche, MSD, Takeda, Eli Lilly, Novartis; clinical trials research from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Eli Lilly, Merck, Novartis, Pfizer, Roche, Medimmun, Sanofi-Aventis. JMe: Advisory Boards/Honoraria/Speakers’ fee/Consultant for Astra-Zeneca, Boeringher Ingelheim, BMS, Roche, MSD; travel grants from Astra-Zeneca, Boeringher Ingelheim, BMS, Ipsen, Roche, MSD. VB: Clinical trial research from AstraZeneca, Roche, MSD; advisory role/consulting/speaker from Pfizer, MSD, AstraZeneca, Roche, Bristol, Merck, Takeda. MC: Advisory or Consultancy role from AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, EUSA Pharma, Lilly, Roche; honoraria, lectures from Abbot, Bristol-Myers Squibb, EUSA Pharma, Ipsen, Novartis, Pfizer, Pierre Fabre, Roche; travel, expenses from Ipsen, Lilly, Merck, Pfizer, Pierre Fabre; institutional financial interests from Astra Zeneca, Merck, Roche, Pfizer. GR: consulting, advisory role or lectures from AstraZeneca, Bayer, Bristol-Myers Squibb, Janssen, Merck Sharp & Dome, Pfizer, Roche, Takeda; sponsored Research Amgen and Janssen. BB: sponsored research at Gustave Roussy Cancer Centre Abbvie, Amgen, AstraZeneca, Biogen, Blueprint Medicines, BMS, Celgene, Eli Lilly, GSK, Ignyta, IPSEN, Merck KGaA, MSD, Nektar, Onxeo, Pfizer, Pharma Mar, Sanofi, Spectrum Pharmaceuticals, Takeda, Tiziana Pharma. DP: consulting, advisory role or lectures from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Daiichi Sankyo, Eli Lilly, Merck, Novartis, Pfizer, prIME Oncology, Peer CME, Roche; honoraria from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Eli Lilly, Merck, Novartis, Pfizer, prIME Oncology, Peer CME, Roche; clinical trials research from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Eli Lilly, Merck, Novartis, Pfizer, Roche, Medimmun, Sanofi-Aventis, Taiho Pharma, Novocure, Daiichi Sankyo; travel, accommodations, expenses from AstraZeneca, Roche, Novartis, prIME Oncology, Pfizer. LM: research grant/Funding (self) from Bristol Myers Squibb, Boehringer Ingelheim, Amgen, Stilla, Inivata; advisory/consultancy from Roche, Takeda; honoraria (self) from Bristol Myers Squibb, Roche, Takeda, AstraZeneca; travel/Accommodation/Expenses from Roche, Bristol Myers Squibb, Takeda, AstraZeneca; non-remunerated activity/ies from AstraZeneca. MR, EA, MMo, ND, EE, RL, JMo, FA, SP, AD, MSp, EM, RR, JCB, LL, BD, AdG, CAV and GL declare no conflicts of interest., (Copyright © 2022. Published by Elsevier Ltd.)

Malignant pleural mesothelioma (MPM) is the most common type of malignant mesothelioma. It is a rare tumor linked to asbestos exposure and is associated with a poor prognosis. Until very recently, patients with advanced or unresectable disease had limited treatment options, primarily based on doublet chemotherapy with cisplatin and pemetrexed. In 2020 and 2021, after more than a decade with no major advances or new drugs, two phase III clinical trials published results positioning immunotherapy as a promising option for the first- and second-line treatment of MPM. Immunotherapy has revolutionized the treatment of many cancers and is also showing encouraging results in malignant mesothelioma. Both immune checkpoint inhibition and dual cytotoxic T-lymphocyte-associated antigen 4 and programmed death-ligand 1 pathway blockade resulted in significantly improved overall survival in randomized phase III trials. In the CheckMate 743 trial, first-line therapy with nivolumab plus ipilimumab outperformed standard chemotherapy, while in the CONFIRM trial, nivolumab outperformed placebo in patients previously treated with chemotherapy. These two trials represent a major milestone in the treatment of MPM and are set to position immunotherapy as a viable alternative for treatment-naïve patients and patients with progressive disease after chemotherapy., Competing Interests: Conflict-of-interest statement: Xabier Mielgo-Rubio declares the following conflicts of interest: Advisory role; Boehringer-Ingelheim, Astra Zeneca, Brystol Myers Squibb. Speakers’ bureau; Roche, Astra Zeneca, Brystol Myers Squibb, MSD, Abbott. Research funding; Brystol Myers Squibb. Rest of authors declare declare any conflicts of interest., (©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.)

The 2004 discovery of EGFR mutations, followed by ALK rearrangements, ushered in a targeted therapy era for advanced non-small cell lung cancer (NSCLC). Tyrosine kinase inhibitors targeting gene alterations have substantially improved survival and quality of life for patients with NSCLC. In the last decade, rearrangements of the ROS1 oncogene have been incorporated into healthcare practice that are applicable to another small subgroup of patients who benefit from similar targeted strategies. Recent genome studies of lung adenocarcinoma have identified other possible therapeutic targets, including RET , NTRK fusions, c-MET alterations, and activating mutations in KRAS , BRAF , and HER2, all with frequencies greater than 1%. Lung cancers harbouring these genome changes can potentially be treated with agents approved for other indications or under clinical development. This review updates the therapeutic arsenal that especially targets those genes., Competing Interests: Conflict-of-interest statement: Xabier Mielgo-Rubio declares the following conflicts of interest: Advisory role; Boehringer-Ingelheim, AstraZeneca, Bristol Myers Squibb. Speakers’ bureau; Roche, AstraZeneca, Bristol Myers Squibb, MSD, Abbott. Research funding; Bristol Myers Squibb. Luis Cabezón-Gutiérrez received speaker or consulting fees from Angelini, Grunenthal, Kyowa Kirin, Mundipharma, Pfizer, Roche, Rovi, Leo Pharma, Merck Serono, Ipsen Pharma, Lilly, Amgen, Boehringer Ingelheim, and AstraZeneca; The remaining authors declare no conflicts of interest., (©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.)

Background: At present, we did not find any articles that studied seroprevalence and its persistence several months later in lung cancer patients in the setting of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Most patients with coronavirus disease 2019 (COVID-19) go on to develop antibodies (Abs) against viral proteins. However, it is not known how long these Abs last nor whether cancer treatments could affect the duration of immune response., Methods: This prospective, longitudinal, multicenter serological study in the setting of SARS-CoV-2 infection was carried out in 50 Spanish hospitals. Eligibility criterion was the diagnosis of any lung cancer. The determination of anti-SARS-CoV-2 IgG Abs was performed by qualitative immuno-enzymatic assay using enzyme-linked immunosorbent assay (ELISA) kit from NovaLisa whose Abs target the recombinant antigen N of the nucleocapsid of SARS-CoV-2. The first Ab determination was performed between April 21 and June 3, 2020. The second Ab determination was performed in all previously seropositive patients, between September 10 and November 20, 2020. Study objectives were to prospectively determine seroprevalence in unselected lung cancer patients during the first wave of the pandemic; the persistence of immunity; protection or lack thereof against reinfection; and the influence of treatments on maintenance or loss of immunity., Results: Of 1,500 patients, 128 were seropositive, overall prevalence of 8.5% seropositivity [95% confidence interval (CI): 7.2-10.1%]. Seventy-five percent were in active cancer treatment. Forty-seven point seven percent of IgG positive participants had experienced a symptomatic illness suspected of being infected with SARS-CoV-2 (95% CI: 38.8-56.6%). A second determination was performed on average 4.5 months later [interquartile range (IQR), 4.0-5.0 months] and obtained for 104 of the initially seropositive patients (81%), it could not be obtained in 24 patients, the majority due to death caused by disease progression (73%). In the second determination, IgG was not detected in 30.8% of patients. The severity of the infection, the need for hospitalization (P=0.032) and the presence of symptoms at diagnosis (P=0.02) were associated with persistence of immunity in the second determination. No variables or treatments received were associated with Abs loss., Conclusions: Immunity against SARS-CoV-2 does not appear to be compromised by treatment and persists beyond 4 months. Neither do mortality rates appear to be particularly high in this unselected population., Trial Registration: ClinicalTrials.gov identifier: NCT04407143., Competing Interests: Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://tlcr.amegroups.com/article/view/10.21037/tlcr-21-504/coif). MP reports grants, personal fees and non-financial support from BMS, Roche and Astrazeneca and personal fees from MSD and TAKEDA and unrelated to the present study. CA reports grants, personal fees and non-financial support from Roche, personal fees and non-financial support from Pierre Fabre and personal fees from Astrazeneca, BMS, MSD and Novartis and unrelated to the present study. MG reports personal fees from Roche, MSD and BMS and unrelated to the present study. GB reports personal fees and non-financial support from Roche and AstraZeneca, personal fees from Sanofi and non-financial support from MSD, Novartis, BMS, MERCK and unrelated to the present study. AE reports personal fees from Roche and MSD and non-financial support from BMS, Lilly, Pharmamar and unrelated to the present study. VC reports personal fees from Roche, BMS, MSD, AstraZeneca and unrelated to the present study. HA reports personal fees from AstraZeneca and unrelated to the present study. JC reports personal fees from Roche, AstraZeneca, Boehringer, BMS, Novartis and Pfizer and unrelated to the present study. MM reports personal fees an non-financial supports from BMS, AstraZeneca, Boehringer and Roche, personal fees from Kyowa Kyrin, Pierre Fabre, Novartis and Sanofi and non-financial support from MSD and Lilly and unrelated to the present study. OJV reports personal fees from: Boehringer, BMS, MSD, Roche, AstraZeneca, Lilly and Takeda and unrelated to the present study. CLG reports personal fees from MSD; Novartis, Kyowa Karin and unrelated to the present study. JBB reports grant and personal fees from Pfizer, grant from Pierre Fabre, personal fees from Roche, MSD, BMS, AstraZeneca, Novartis and Boehringer and unrelated to the present study. XM reports grant and personal fees from BMS, personal fees and non-financial support from Roche, personal fees from AstraZeneca and unrelated to the present study. FdAA reports personal fees from Takeda, Mylan, Archimedes, Boehringer and unrelated to the present study. EN reports grant and personal fees from BMS and MERCK, personal fees from Roche, Pfizer, MSD, AstraZeneca, Lilly and Amgen and unrelated to the present study. SC reports personal fees and non-finacial support from Roche and personal fees from Boehringer and unrelated to the present study. The other authors have no conflicts of interest to declare., (2022 Translational Lung Cancer Research. All rights reserved.)

In recent years, studies have explored different combinations of immunotherapy and chemotherapy. The rationale behind these is the improved survival outcomes of new immunologic therapies used in first-line-treatment of advanced non-small cell lung cancer. Moreover, for the most-studied combinations of anti-programed death-1 (PD-1)/programed death ligand-1 (PD-L1) with the addition of platinum- based chemotherapy, recent research is investigating whether combining different immunologic antitumoral mechanisms of action, such as anti-PD-1/PD-L1 and anti-CTLA-4, or anti-PD-L1 and anti-TIGIT, with or without chemotherapy, can improve efficacy outcomes compared with more classical combinations, or compared with standard chemotherapy alone. Here, we present the data of the main randomized studies that have evaluated these combinations, focusing on the basic rationale behind the different combinations, and the efficacy and tolerability data available to date., Competing Interests: Conflict-of-interest statement: Mielgo-Rubio X reports personal fees and non-financial support from ROCHE, personal fees from ASTRA ZENECA, grants, personal fees and non-financial support from BMS, personal fees from MSD, personal fees from ABBOTT, personal fees from KIOWA-KIRIN, outside the submitted work. Rest of authors has nothing to disclose., (©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.)

Complete resection continues to be the gold standard for the treatment of early-stage lung cancer. The landmark Lung Cancer Study Group trial in 1995 established lobectomy as the minimum intervention necessary for the management of early-stage non-small cell lung cancer, as it was associated with lower recurrence and metastasis rates than sublobar resection and lower postoperative morbidity and mortality than pneumonectomy. There is a growing tendency to perform sublobar resection in selected cases, as, depending on factors such as tumor size, histologic subtype, lymph node involvement, and resection margins, it can produce similar oncological results to lobectomy. Alternative treatments such as stereotactic body radiotherapy and radiofrequency ablation can also produce good outcomes in inoperable patients or patients who refuse surgery., Competing Interests: Conflict-of-interest statement: No conflict of interest., (©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.)

Patients with early-stage non-small-cell lung cancer (NSCLC) are candidates for curative surgery; however, despite multiple advances in lung cancer management, recurrence rates remain high. Adjuvant chemotherapy has been demonstrated to significantly prolong overall survival (OS), but this benefit is modest and there is an urgent need for effective new therapies to provide a cure for more patients. The high efficacy of tyrosine kinase inhibitors (TKIs) against epidermal growth factor receptor-mutated (EGFR) in patients with advanced EGFR-mutated NSCLC has led to the evaluation of these agents in early stages of the disease. Multiple clinical trials have evaluated the safety and efficacy of EGFR TKIs as an adjuvant treatment, in patients with resected EGFR-mutated NSCLC, and shown that they significantly prolong disease-free survival (DFS), but this benefit does not translate to OS. Recently, an interim analysis of the ADAURA trial demonstrated that, surprisingly, osimertinib improved DFS. This led to the study being stopped early, leaving many unanswered questions about its potential effect on OS and its incorporation as a standard adjuvant treatment in this patient subgroup. These targeted agents are also being evaluated in locally-advanced disease, with promising results, although prospective studies with larger sample sizes are needed to confirm these results. In this article, we review the most relevant studies on the role of EGFR TKIs in the management of early-stage EGFR-mutated NSCLC., Competing Interests: Conflict-of-interest statement: Dr. MIELGO-RUBIO reports personal fees and non-financial support from ROCHE, personal fees from ASTRA ZENECA, grants, personal fees and non-financial support from BMS, personal fees from MSD, personal fees from ABBOTT, personal fees from KIOWA-KIRIN, outside the submitted work. Rest of authors declares no conflict of interest., (©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.)

This manuscript collects in a joint and orderly manner the existing evidence at the present time about postoperative treatment with radiotherapy in non-small cell lung cancer. It also systematically reviews the current evidence, the international recommendations in the most relevant guidelines, the most controversial aspects in clinical and pathological staging, the specific technical aspects of radiotherapy treatment, and also collects all the potential risk factors that have been postulated as significant in the prognosis of these patients, evaluating the possibility of segmenting a particularly sensitive subpopulation with a high risk of relapse on which an adjuvant treatment with radiotherapy could have an impact on their clinical evolution. Finally, currently active trials that aspire to provide more evidence on this topic are reviewed., Competing Interests: Conflict-of-interest statement: None of the authors have any conflict of interest., (©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.)

Lung cancer continues to be the leading cause of cancer mortality and a serious health problem despite the numerous advances made in the last decade and the rapid advance of research in this field. In recent years, there has been a decrease in mortality from lung cancer coinciding with the approval times of targeted therapy. To date, targeted therapy has been used in the context of advanced disease in clinical practice, with great benefits in survival and quality of life. The next step will be to incorporate targeted therapy into the treatment of earlier stages of non-small-cell lung cancer, and there is already a randomized trial showing a disease-free survival benefit. However, there are many questions that need to be resolved first. In the present review, the authors discuss the findings of published reports and ongoing clinical trials assessing the role of targeted therapies in nonmetastatic disease.