Surgery after chemoradiotherapy in patients with stage III (N2 or N3, excluding T4) non-small-cell lung cancer: a systematic review

Real-world status of multimodal treatment of Stage IIIA-N2 non-small cell lung cancer in Japan: Results from the SOLUTION study, a non-interventional, multicenter cohort study

OBJECTIVES

There is limited consensus on resectability criteria for Stage IIIA-N2 non-small cell lung cancer (NSCLC). We examined the patient characteristics, N2 status, treatment decisions, and clinical outcomes according to the treatment modality for Stage IIIA-N2 NSCLC in Japan.

MATERIALS AND METHODS

Patients with Stage IIIA-N2 NSCLC in Japan were consecutively registered in the SOLUTION study between 2013 and 2014. Patients were divided according to treatment (chemoradiotherapy [CRT], surgery + perioperative therapy [neoadjuvant and/or adjuvant therapy], surgery alone). Demographic characteristics, N2 status (number and morphological features), pathological information, and treatments were analyzed descriptively. Overall survival (OS), progression-free survival (PFS), and disease-free survival (DFS) were estimated using the Kaplan-Meier method.

RESULTS

Of 227 patients registered, 133 underwent CRT, 56 underwent surgery + perioperative therapy, and 38 underwent surgery alone. The physicians reported the following reasons for unresectability for 116 of 133 CRT patients: large number of metastatic lymph nodes (70.7 %), extranodal infiltration (25.0 %), poor surgical tolerance (19.0 %), or other reasons (18.1 %). CRT was more frequently performed in patients whose lymph nodes had an infiltrative appearance (64.3 %) and was the predominant treatment in patients with multiple involved stations (discrete: 60.0 %; infiltrative: 80.4 %). Distant metastasis with/without local progression was found in 50.4 %, 50.0 %, and 36.8 % of patients in the CRT, surgery + perioperative therapy, and surgery alone groups, respectively. The respective 3-year OS and DFS/PFS rates (median values) were as follows: surgery + perioperative therapy-61.9 % (not reached) and 37.1 % (22.4 months; DFS); CRT group-42.2 % (31.9 months) and 26.8 % (12.0 months; PFS); surgery alone group-37.7 % (26.5 months) and 28.7 % (12.6 months; DFS).

CONCLUSION

This study has illuminated the real-world decision rules for choosing between surgical and non-surgical approaches in patients with Stage IIIA-N2 NSCLC. Our landmark data could support treatment decision making for using immune checkpoint inhibitors and targeted therapy for driver oncogenes in the perioperative therapy era.

Lobectomy with Lymph Node Dissection Benefits N3 Stage Non-Small Cell Lung Cancer Patients: A Population-Based Study

INTRODUCTION

There remain controversies about the role of surgery for N3 stage non-small cell lung cancer (NSCLC) patients.

METHODS

N3 stage NSCLC patients were identified from the US National Cancer Institute Surveillance, Epidemiology, and End Results database (2010-2020). Survival analysis and multivariate regression models were used to adjust covariates and analyze factors associated with survival. Propensity score matching was used to balance selection bias.

RESULTS

Of 6,473 included patients, 121 received treatment that included lobectomy with mediastinal lymph node dissection. Overall survival (OS) was significantly prolonged in the lobectomy group than in the nonsurgery group (median survival time [MST]: 57 vs. 16 months; log-rank p < 0.001). A total of 403 patients were matched, and OS was significant longer in the lobectomy group (MST: 51 vs. 16 months; log-rank p < 0.001). Multivariate regression analyses indicated that lobectomy was independently associated with improved OS (hazard ratio [HR] 0.398, 95% confidence interval [CI] 0.302-0.526; p < 0.001) and lung cancer-specific death (LCSD) (subhazard ratio [SHR] 0.343, 95% CI: 0.249-0.474; p < 0.001).

CONCLUSION

Compared with nonsurgical treatment modalities, lobectomy with lymph node dissection was associated with improved OS and LCSD in selected N3 stage NSCLC patients.

Identifying optimal surgical approach among T1N2-3M0 non-small cell lung cancer patients: a population-based analysis

Background

Whether stage T1N2-3M0 non-small cell lung cancer (NSCLC) patients could benefit from surgery and the optimal surgical procedure have remained controversial and unclear. This study aimed to investigate whether stage T1N2-3M0 NSCLC can benefit from different surgery types and develop a tool for survival prediction.

Methods

The Surveillance, Epidemiology, and End Results (SEER) database was used to identify patients diagnosed with stage T1N2-3M0 NSCLC between 2000 and 2015. A 1:1 propensity score-matched (PSM) analysis was used to balance the distribution of clinical characteristics. Survival analyses were performed by using the Kaplan-Meier (KM) curves and Cox proportional hazards regression. All patients were randomly split at a ratio of 7:3 into training and validation cohorts. The nomogram was constructed by integrating all independent predictors for overall survival (OS) and cancer-specific survival (CSS). The model's performance was evaluated by discrimination, calibration ability, and risk stratification ability.

Results

A total of 4,671 patients were enrolled. After 1:1 PSM, the distribution proportions of clinical characteristics in 1,146 patients were balanced (all P>0.05). The non-surgical approach was associated with worse survival compared with sublobectomy and lobectomy in the unmatched and matched cohorts. The multivariate Cox analysis showed that sublobectomy and lobectomy were both related to better OS and CSS rates compared with no surgery (P<0.001). Moreover, the results of subgroup analyses based on age, N stage, and radiotherapy or chemotherapy strategy were consistent. A total of 801 patients were included in the training cohort and 345 cases constituted the validation cohort. The nomogram constructed for the 1-, 3-, and 5-year OS and CSS prediction showed good discrimination, performance, and calibration both in the training and validation sets. Significant distinctions in survival curves between different risk groups stratified by prognostic scores were also observed (all P<0.001).

Conclusions

Stage T1N2-3M0 NSCLC patients could benefit from sublobectomy or lobectomy, and lobectomy provides better survival benefits. We developed and validated nomograms, which could offer clinicians instructions for strategy making.

Update on the Management of Stage III NSCLC: Navigating a Complex and Heterogeneous Stage of Disease

BACKGROUND

Stage III nonsmall cell lung cancer (NSCLC) represents a heterogeneous group of patients. Many patients are treated with curative intent multimodality therapy, either surgical resection plus systemic therapy or chemoradiation plus immunotherapy. However, many patients are not suitable for curative intent therapy and are treated with palliative systemic therapy or best supportive care.

METHODS

This paper is a review of recent advances in the management of patients with curative intent disease.

RESULTS

There have been significant advances in curative intent therapy for patients with stage III NSCLC in recent years. These include both adjuvant and neoadjuvant systemic therapies. For patients with resectable NSCLC, two trials have demonstrated that adjuvant atezolizumab or pembrolizumab, following chemotherapy, significantly improved disease-free survival (DFS). In patients with tumours harbouring a common mutation of the EGFR gene, adjuvant osimertinib therapy was associated with a large improvement in both DFS and overall survival (OS). Five randomized trials have evaluated chemotherapy plus nivolumab, pembrolizumab, durvalumab, or toripalimab, either as neoadjuvant or perioperative (neoadjuvant plus adjuvant) therapy. All five trials show significant improvements in the rate of pathologic complete response (pCR) and event-free survival (EFS). OS data are currently immature. This would now be considered the standard of care for resectable stage III NSCLC. The addition of durvalumab to chemoradiation has also become the standard of care in unresectable stage III NSCLC. One year of consolidation durvalumab following concurrent chemoradiation has demonstrated significant improvements in both progression-free and overall survival.

CONCLUSIONS

Immune checkpoint inhibitor (ICI) therapy has become a standard recommendation in curative intent therapy for stage III NSCLC.

Advances in Surgical Techniques for Lung Cancer

Thoracic surgery for non-small cell lung cancer has evolved tremendously in the past two decades. Improvements have come on multiples fronts and include a transition to minimally invasive techniques, an incorporation of neoadjuvant treatment, and a greater utilization of sublobar resection. These advances have reduced the morbidity of thoracic surgery, while maintaining or improving long-term survival. This review highlights major advances in the surgical techniques of lung cancer and the keys to optimizing outcomes from a surgical perspective.

Complementary and integrative medicine mention and recommendations: A systematic review and quality assessment of lung cancer clinical practice guidelines

BACKGROUND

Complementary and integrative medicine (CIM) use is widely sought by those diagnosed with cancer, with up to 50% of lung cancer patients seeking these therapies in the United States. The purpose of this study was to identify the quantity and assess the quality of CIM recommendations in clinical practice guidelines (CPGs) for the treatment and/or management of lung cancer.

METHODS

A systematic review was conducted to identify lung cancer CPGs. MEDLINE, EMBASE and CINAHL were searched from 2008 to 2018, along with the Guidelines International Network and the National Center for Complementary and Integrative Health websites. Eligible guidelines containing recommendations for the treatment and/or management of lung cancer were assessed with the Appraisal of Guidelines, Research and Evaluation II (AGREE II) instrument.

RESULTS

From 589 unique search results, 4 guidelines mentioned CIM, of which 3 guidelines made CIM recommendations. Scaled domain percentages from highest to lowest were: scope and purpose (82.4% overall, 76.9% CIM), clarity and presentation (96.3% overall, 63.0% CIM), editorial independence (61.1% overall, 61.1% CIM), rigour of development (62.5% overall, 54.9% CIM), stakeholder involvement (66.7% overall, 42.6% CIM) and applicability (29.9% overall, 18.8% CIM). Quality varied within and across guidelines.

CONCLUSION

Guidelines that scored well could serve as a framework for discussion between patients and healthcare professionals regarding use of CIM therapies in the context of lung cancer. Guidelines that scored lower could be improved according to the AGREE II instrument, with insight from other guidelines development resources.

Epidemiology of stage III lung cancer: frequency, diagnostic characteristics, and survival

Stage III non-small cell lung cancer (NSCLC) includes a highly heterogeneous group of patients with differences in the extent and localization of disease. Many aspects of stage III disease are controversial. The data supporting treatment approaches are often subject to a number of limitations, due to the heterogeneous patient populations involved in the trials. Furthermore, the definition of stage III disease has changed over time, and early studies were frequently inadequately powered to detect small differences in therapeutic outcome, were not randomized, or had a limited follow-up times. Major improvements in therapy, including the use of more active chemotherapy agents and refinements in radiation and surgical techniques, also limit the interpretation of earlier clinical trials. Lastly, improvements in pretreatment staging have led to reclassification of patients with relatively minimal metastatic disease as stage IV rather than stage III, leading to an apparent increase in the overall survival of both stage III and IV patients. Median overall stage III NSCLC survival ranges from 9 to 34 months. Higher survival rates are observed in younger Caucasian women with good performance status, adenocarcinoma, mutations, stage IIIA, and in patients with multidisciplinary-team-based diagnoses.

Effects of high-quality nursing care for patients with lung cancer during the perioperative period: A protocol of systematic review of randomized controlled trials

BACKGROUND

This study will explore the effects of high-quality nursing care (HQNC) for patients with lung cancer (LC) during the perioperative period (PPP).

METHODS

A literature search will be performed at Cochrane Library, MEDLINE, EMBASE, Chinese Biomedical Literature Database, and China National Knowledge Infrastructure since its inception until October 1, 2019. All electronic databases will be searched with no restrictions of language and publication status. Two authors will perform study selection, data collection, and study quality assessment, respectively. We will use RevMan 5.3 software for statistical analysis.

RESULTS

This study will summarize the latest evidence on assessing the depression, anxiety, quality of life, and adverse events of HQNC in patients with LC during PPP.

CONCLUSION

The results of this study may provide helpful evidence of HQNC on psychological effects in patients with LC during PPP.

PROSPERO REGISTRATION NUMBER

PROSPERO CRD42019155982.