NCCN Guidelines Insights: Non-Small Cell Lung Cancer, Version 2.2021.

The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Non-Small Cell Lung Cancer (NSCLC) address all aspects of management for NSCLC. These NCCN Guidelines Insights focus on recent updates to the NCCN Guidelines regarding targeted therapies, immunotherapies, and their respective biomarkers.

Approach to Resectable N1 Non-Small Cell Lung Cancer: An Analysis of the National Cancer Database.

BACKGROUND: In patients with clinical N1 disease, minimally invasive surgery (MIS) has potentially better perioperative outcome compared to open thoracotomy. Additionally, whether adjuvant or neoadjuvant chemotherapy produces the best long-term survival is still debatable. METHODS: We queried The National Cancer Database for patients with clinical N1 NSCLC who underwent surgical resection between 2010 and 2014. Comparison between patients receiving MIS and patients who underwent open thoracotomy was done using an intention-to-treat analysis. Comparison was also done among neoadjuvant, adjuvant chemotherapy, and only surgery. Proportional hazard models were used to evaluate the effects of surgical approach and timing of chemotherapy on overall survival. RESULTS: A total of 1440 and 3942 patients underwent MIS and open thoracotomy respectively. MIS achieved better surgical margins (90.0% versus 88.6%) and shorter length of stay (6.5 ± 6.5 versus 7.3 ± 6.4 d, P ≤ 0.01) compared to open thoracotomy. There were no differences in 30-day and 90-day mortality, nor readmission rates. Neoadjuvant and adjuvant chemotherapy were administered to 13.5% and 57.2% of patients respectively. There was no significant difference in the 5-year overall survival between MIS and open thoracotomy (46% versus 46% P = 0.08). There was significantly better 5-year overall survival in neoadjuvant and adjuvant chemotherapy versus only surgery, but no difference between neoadjuvant and adjuvant chemotherapy (48% versus 47% versus 44%, P < 0.01). CONCLUSIONS: In clinical N1 NSCLC, MIS does not compromise oncological quality or overall survival when compared to open thoracotomy. Overall survival improved in patients treated with chemotherapy but there is no difference when given as neoadjuvant versus adjuvant chemotherapy.

NCCN Guidelines Insights: Non-Small Cell Lung Cancer, Version 1.2020.

The NCCN Guidelines for Non-Small Cell Lung Cancer (NSCLC) address all aspects of management for NSCLC. These NCCN Guidelines Insights focus on recent updates in immunotherapy. For the 2020 update, all of the systemic therapy regimens have been categorized using a new preference stratification system; certain regimens are now recommended as "preferred interventions," whereas others are categorized as either "other recommended interventions" or "useful under certain circumstances."

Radiation With Neoadjuvant Chemotherapy Does Not Improve Outcomes in Esophageal Squamous Cell Cancer.

BACKGROUND: Neoadjuvant treatment improves survival for patients undergoing esophagectomy for esophageal cancer. Recent evidence suggests that neoadjuvant chemoradiation offers no advantage over chemotherapy alone before surgical resection for adenocarcinoma histology. We sought to examine if this applies to patients with squamous cell histology. MATERIALS AND METHODS: The National Cancer Database was queried for patients who underwent treatment for squamous cell carcinoma of the esophagus from 2004 to 2012. Patients who underwent neoadjuvant chemotherapy before esophagectomy were compared with those undergoing chemotherapy and radiation before surgical resection. Associations between potential covariates and treatment were analyzed using the Pearson chi-square test for categorical variables and Wilcoxon rank sum test for continuous variables. Univariate and multivariate proportional hazards modeling results were used to assess the effect of treatment on overall survival. Relative prognosis was summarized using estimates and 95% confidence limits for the hazard ratio. Unadjusted differences in overall survival and disease-specific survival between the treatment are shown using Kaplan-Meier methods. RESULTS: A total of 902 patients underwent neoadjuvant therapy before surgical resection during the study period, with 827 receiving chemotherapy and radiation, and 75 receiving chemotherapy alone preoperatively. The 30- and 90-d mortality for patients undergoing neoadjuvant chemotherapy and radiation followed by surgery were 5.4% and 10.4% compared to 5.5% and 11.1% for patients who received chemotherapy alone preoperatively (P = 0.963 and P = 0.856), respectively. Median overall survival for patients receiving chemotherapy and radiation was 36.0 mo versus 40.8 mo for chemotherapy alone. The 5-y survival was 39% for the chemotherapy and radiation group and 43% for the chemotherapy group (logrank P = 0.7212). CONCLUSIONS: For patients undergoing neoadjuvant treatment before planned surgical resection of squamous cell carcinoma of the esophagus, the addition of radiation to neoadjuvant chemotherapy did not improve long-term survival and did not appear to impact short-term outcomes postoperatively. Further study with a randomized phase III trial is needed.

Role of Segmentectomy in Treatment of Early-Stage Non-Small Cell Lung Cancer.

PURPOSE AND DESIGN: Standard treatment for early-stage non-small cell lung cancer has traditionally involved lobectomy. Historical data that demonstrates suboptimal results for sublobar resection compared to lobectomy have been challenged in recent years with retrospective data for patients with T1a disease. For patients who are not candidates for lobectomy, options for sublobar resection include wedge resection or anatomic segmentectomy. Segmentectomy has long been held to be a better cancer operation than wedge resection, and its role in treating early-stage lung cancer remains controversial in patients who are candidates for lobectomy. A review of available literature involving segmentectomy and possible predictors of failure for segmentectomy was performed in an attempt to clarify the role of segmentectomy for early-stage lung cancer. RESULTS AND CONCLUSIONS: Current evidence is conflicting regarding the optimal scenario for sublobar resection with segmentectomy. Two large-scale randomized trials are currently addressing the question. In the meantime, certain preoperative and intraoperative considerations should be taken into account when considering segmentectomy for the treatment of early-stage non-small cell lung cancer.

Concomitant Mediastinoscopy Increases the Risk of Postoperative Pneumonia After Pulmonary Lobectomy.

BACKGROUND: Mediastinoscopy is considered the gold standard for preresectional staging of lung cancer. We sought to examine the effect of concomitant mediastinoscopy on postoperative pneumonia (POP) in patients undergoing lobectomy. METHODS: All patients in our institutional database (2008-2015) undergoing lobectomy who did not receive neoadjuvant therapy were included in our study. The relationship between mediastinoscopy and POP was examined using univariate (Chi square) and multivariate analyses (binary logistic regression). In order to validate our institutional findings, lobectomy data in the National Surgical Quality Improvement Program (NSQIP) from 2005 to 2014 were analyzed for these associations. RESULTS: Of 810 patients who underwent a lobectomy at our institution, 741 (91.5%) surgeries were performed by video-assisted thoracic surgery (VATS) and 487 (60.1%) patients underwent concomitant mediastinoscopy. Univariate analysis demonstrated an association between mediastinoscopy and POP in patients undergoing VATS [odds ratio (OR) 1.80; p = 0.003], but not open lobectomy. Multivariate analysis retained mediastinoscopy as a variable, although the relationship showed only a trend (OR 1.64; p = 0.1). In the NSQIP cohort (N = 12,562), concomitant mediastinoscopy was performed in 9.0% of patients, with 44.5% of all the lobectomies performed by VATS. Mediastinoscopy was associated with POP in patients having both open (OR1.69; p < 0.001) and VATS lobectomy (OR 1.72; p = 0.002). This effect remained in multivariate analysis in both the open and VATS lobectomy groups (OR 1.46, p = 0.003; and 1.53, p = 0.02, respectively). CONCLUSIONS: Mediastinoscopy may be associated with an increased risk of POP after pulmonary lobectomy. This observation should be examined in other datasets as it potentially impacts preresectional staging algorithms for patients with lung cancer.

A pilot study of stereotactic body radiation therapy (SBRT) after surgery for stage III non-small cell lung cancer.

BACKGROUND: Standard therapy for stage III non-small cell lung cancer with chemotherapy and conventional radiation has suboptimal outcomes. We hypothesized that a combination of surgery followed by stereotactic body radiation therapy (SBRT) would be a safe alternative. METHODS: Patients with stage IIIA (multistation N2) or IIIB non-small cell lung cancer were enrolled from March 2013 to December 2015. The protocol included transcervical extended mediastinal lymphadenectomy (TEMLA) followed by surgical resection, 10 Gy SBRT directed to the involved mediastinum/hilar stations and/or positive surgical margins, and adjuvant systemic therapy. Patients not suitable for anatomic lung resection were treated with 30 Gy to the primary tumor. The primary efficacy end-point was the proportion of patients with grade 3 or higher adverse events (AE) or toxicities. RESULTS: Of 10 patients, 7 patients underwent neoadjuvant chemotherapy. All patients had TEMLA. Nine of 10 patients underwent surgical resection. The remaining patient had an unresectable tumor and received 30 Gy SBRT to the primary lesion. All patients had post-operative SBRT. Median follow-up was 18 months. There were no perioperative mortalities. Six patients had any grade 3 AEs with no grade 4-5 AEs. Of these, 4 were not attributable to radiation. Pulmonary-related grade 3 AEs were experienced by 2 patients. There were no failures within the 10 Gy volume. Overall survival and progression-free survival rates at 2 years were 68% (90% CI 36-86) and 40% (90% CI 16-63), respectively. CONCLUSIONS: In carefully selected patients with locally advanced non-small cell lung cancer, combining surgery with SBRT was well tolerated with no local failure. TRIAL REGISTRATION: ClinicalTrials.gov identifying number NCT01781741 . Registered February 1, 2013.

NCCN Guidelines Insights: Non-Small Cell Lung Cancer, Version 5.2018.

The NCCN Guidelines for Non-Small Cell Lung Cancer (NSCLC) address all aspects of management for NSCLC. These NCCN Guidelines Insights focus on recent updates to the targeted therapy and immunotherapy sections in the NCCN Guidelines. For the 2018 update, a new section on biomarkers was added.

Non-Small Cell Lung Cancer, Version 5.2017, NCCN Clinical Practice Guidelines in Oncology.

This selection from the NCCN Guidelines for Non-Small Cell Lung Cancer (NSCLC) focuses on targeted therapies and immunotherapies for metastatic NSCLC, because therapeutic recommendations are rapidly changing for metastatic disease. For example, new recommendations were added for atezolizumab, ceritinib, osimertinib, and pembrolizumab for the 2017 updates.

NCCN Guidelines Insights: Malignant Pleural Mesothelioma, Version 3.2016.

These NCCN Guidelines Insights focus on recent updates to the NCCN Guidelines for Malignant Pleural Mesothelioma (MPM). These NCCN Guidelines Insights discuss systemic therapy regimens and surgical controversies for MPM. The NCCN panel recommends cisplatin/pemetrexed (category 1) for patients with MPM. The NCCN panel also now recommends bevacizumab/cisplatin/pemetrexed as a first-line therapy option for patients with unresectable MPM who are candidates for bevacizumab. The complete version of the NCCN Guidelines for MPM, available at NCCN.org, addresses all aspects of management for MPM including diagnosis, evaluation, staging, treatment, surveillance, and therapy for recurrence and metastasis; NCCN Guidelines are intended to assist with clinical decision-making.

NCCN Guidelines Insights: Non-Small Cell Lung Cancer, Version 4.2016.

These NCCN Guidelines Insights focus on recent updates in the 2016 NCCN Guidelines for Non-Small Cell Lung Cancer (NSCLC; Versions 1-4). These NCCN Guidelines Insights will discuss new immunotherapeutic agents, such as nivolumab and pembrolizumab, for patients with metastatic NSCLC. For the 2016 update, the NCCN panel recommends immune checkpoint inhibitors as preferred agents (in the absence of contraindications) for second-line and beyond (subsequent) therapy in patients with metastatic NSCLC (both squamous and nonsquamous histologies). Nivolumab and pembrolizumab are preferred based on improved overall survival rates, higher response rates, longer duration of response, and fewer adverse events when compared with docetaxel therapy.

Temporal trends in outcomes following sublobar and lobar resections for small (≤ 2 cm) non-small cell lung cancers--a Surveillance Epidemiology End Results database analysis.

BACKGROUND: Since the randomized, controlled study that favored lobectomy for resection of stage I non-small cell lung cancers (NSCLCs) by the Lung Cancer Study Group, there have been improvements in staging. The liberal use of computed tomography also may have altered the types of early lung cancer diagnosed. Studies published since then have drawn contradictory conclusions on the benefit of lobectomy over sublobar resections for early-stage NSCLC. We examined the Surveillance Epidemiology End Results database to test our hypothesis that the relationship between extent of resection and outcome has changed since the Lung Cancer Study Group study was published. METHODS: We examined stage I NSCLCs ≤ 2 cm in size over three periods: 1988-1998 (Early), 1999-2004 (Intermediate), and 2005-2008 (Late). For each period, we assessed overall and disease-specific survivals and their associations with the extents of resection, by univariate and multivariate analyses. Sublobar resections in the Early group could not be categorized into segmentectomies and wedge resections because these were not coded separately. RESULTS: The proportion of NSCLCs ≤ 2 cm increased from 0.98% in 1988 to 2.2% in 2008. Multivariate analyses showed that sublobar resection was inferior to lobectomy in the Early period (hazard ratio [HR], 1.41; 95% confidence interval [CI], 1.21-1.65). This effect decreased in the Intermediate period, in which segmentectomies but not wedge resections were equivalent to lobectomies (wedge versus lobectomy HR, 1.19; 95% CI, 1.01-1.41; segmentectomy versus lobectomy HR, 1.04; 95% CI, 0.8-1.36). The difference disappeared in the Late period, when both wedge resections and segmentectomies were equivalent to lobectomy (wedge versus lobectomy HR, 1.09; 95% CI, 0.79-1.5; segmentectomy versus lobectomy HR, 0.83; 95% CI, 0.47-1.45). Trends for both overall survival and disease-specific survival were identical. CONCLUSIONS: The survival benefit of lobectomy over sublobar resection decreased over the past 2 decades with no discernible difference in the most contemporary cases. These results support reevaluation of lobectomy as the standard of care for small (≤ 2-cm) NSCLCs.

Survival Benefit of Perioperative Systemic Chemotherapy for Patients With N0 to N1 NSCLC Having Synchronous Brain Metastasis.

Introduction: In stage IV NSCLC with solitary or oligometastatic brain metastasis, surgical resection of the primary and definitive management of the brain metastasis is an accepted standard. However, the effect of systemic chemotherapy after surgical resection on overall survival is not well-established. Methods: We used the National Cancer Database to retrospectively identify individuals with NSCLC as the primary tumor along with synchronous brain metastases who underwent thoracic resection with or without adjuvant chemotherapy. Chi-square and Wilcoxon rank sum tests were performed to compare categorical and continuous variables, respectively, across the treatment groups. Kaplan-Meier and Cox proportional modeling were done to determine the survival benefit. Results: A total of 310 (71.9%) of the cohort received perioperative chemotherapy, most of whom (79.4%) received it in the adjuvant setting. Patients receiving chemotherapy were likely to be younger (p = 0.002), privately insured (p = 0.01), and receive radiation (p < 0.001). Perioperative chemotherapy was significantly associated with survival on both univariate (hazard ratio = 0.71[0.52 - 0.99]) and multivariable (hazard ratio = 0.66 [0.47 - 0.92]) in addition to age (p = 0.03), Charlson-Deyo score (p = 0.02), pathologic N stage (p = 0.02), and adenocarcinoma histology (p = 0.02). Kaplan-Meier analysis confirmed this result with a significantly better survival with perioperative chemotherapy (p = 0.02). Further subgroup analysis using pathologic N stage revealed similar effect in pN1 (p = 0.001), but not pN0 (p = 0.2) patients. Conclusions: Perioperative chemotherapy for pN0-1 NSCLC with synchronous brain metastasis is associated with improved OS in this analysis.

Analyzing the impact of minimally invasive surgical approaches on post-operative outcomes of pneumonectomy and sleeve lobectomy patients.

Background: Some patients with non-small cell lung cancer (NSCLC) have superior short- and long-term outcomes with sleeve lobectomy rather than pneumonectomy. Originally sleeve lobectomy was reserved for patients with limited pulmonary function, however, the reported superior results allowed sleeve lobectomy to be performed in expanded patient populations. In a further attempt to improve post-operative outcomes surgeons have adopted minimally invasive techniques Minimally invasive approaches have potential benefits to patients such as decreased morbidity and mortality while maintaining the same caliber of oncologic outcomes. Methods: We identified patients at our institution who underwent sleeve lobectomy or pneumonectomy to treat NSCLC from 2007 to 2017. We analyzed these groups in respect to 30- and 90-day mortality, complications, local recurrence, and median survival. We included multivariate analysis to determine the impact of a minimally invasive approach, sex, extent of resection, and histology. Differences in mortality were analyzed using the Kaplan-Meier method using the log-rank test to compare the groups. A two-tailed Z test for difference in proportions was done to analyze complications, local recurrence, 30-day and 90-day mortality. Results: A total of 108 patients underwent sleeve lobectomy (n=34) or pneumonectomy (n=74) for treatment of NSCLC with 18 undergoing open pneumonectomy, 56 undergoing video-assisted thoracoscopic surgery (VATS) pneumonectomy, 29 undergoing open sleeve lobectomy, and 5 undergoing VATS sleeve lobectomy. There was no significant difference in 30-day mortality (P=0.064) but there was a difference in 90-day (P=0.007). There was no difference in complication rates (P=0.234) or local recurrence rates (P=0.779). The pneumonectomy patients had a median survival of 23.6 months (95% CI: 3.8-43.4 months). The sleeve lobectomy group had a median survival of 60.7 months (95% CI: 43.3-78.2 months) (P=0.008). On multivariate analysis extent of resection (P<0.001) and tumor stage (P=0.036) were associated with survival. There was no significant difference between the VATS approach and the open surgical approach (P=0.053). Conclusions: When considering patients undergoing surgery for NSCLC sleeve lobectomy resulted in lower 90-day mortality and better 3-year survival compared to patients undergoing PN. Having a sleeve lobectomy rather than a pneumonectomy and having earlier-stage disease lead to significantly improved survival on multivariate analysis. Having a VATS operation leads to a non-inferior post-operative outcome compared to open surgery.

Postoperative Restrictive Opioid Protocols and Durable Changes in Opioid Prescribing and Chronic Opioid Use.

Importance: Changes in postsurgical opioid prescribing practices may help reduce chronic opioid use in surgical patients. Objective: To investigate whether postsurgical acute pain across different surgical subspecialties can be managed effectively after hospital discharge with an opioid supply of 3 or fewer days and whether this reduction in prescribed opioids is associated with reduced new, persistent opioid use. Design, Setting, and Participants: In this prospective cohort study with a case-control design, a restrictive opioid prescription protocol (ROPP) specifying an opioid supply of 3 or fewer days after discharge from surgery along with standardized patient education was implemented across all surgical services at a tertiary-care comprehensive cancer center. Participants were all patients who underwent surgery from August 1, 2018, to July 31, 2019. Main Outcomes and Measures: Main outcomes were the rate of compliance with the ROPP in each surgical service, the mean number of prescription days and refill requests, type of opioid prescribed, and rate of conversion to chronic opioid use determined via a state-run opioid prescription program. Postsurgical complications were also measured. Results: A total of 4068 patients (mean [SD] age, 61.0 [13.8] years; 2528 women [62.1%]) were included, with 2017 in the pre-ROPP group (August 1, 2018, to January 31, 2019) and 2051 in the post-ROPP group (February 1, 2019, to July 31, 2019). The rate of compliance with the protocol was 95%. After implementation of the ROPP, mean opioid prescription days decreased from a mean (SD) of 3.9 (4.5) days in the pre-ROPP group to 1.9 (3.6) days in the post-ROPP group (P < .001). The ROPP implementation led to a 45% decrease in prescribed opioids after surgery (mean [SD], 157.22 [338.06] mean morphine milligram equivalents [MME] before ROPP vs 83.54 [395.70] MME after ROPP; P < .001). Patients in the post-ROPP cohort requested fewer refills (367 of 2051 [17.9%] vs 422 of 2017 [20.9%] in the pre-ROPP cohort; P = .02). There was no statistically significant difference in surgical complications. The conversion rate to chronic opioid use decreased following ROPP implementation among both opioid-naive patients with cancer (11.3% [143 of 1267] to 4.5% [118 of 2645]; P < .001) and those without cancer (6.1% [19 of 310] to 2.7% [16 of 600]; P = .02). Conclusions and Relevance: In this cohort study, prescribing an opioid supply of 3 or fewer days to surgical patients after hospital discharge was feasible for most patients, led to a significant decrease in the number of opioids prescribed after surgery, and was associated with a significantly decreased conversion to long-term opioid use without concomitant increases in refill requests or significant compromises in surgical recovery.

Advances in lung cancer surgery.

The last few years have witnessed an explosion of the use of minimally invasive techniques for the detection, diagnosis, and treatment of all stages of lung Cancer. The use of these techniques has improved the risk-benefit ratio of surgery and has made it more acceptable to patients considering lung surgery. They have also facilitated the delivery of multi-modality therapy to patients with advanced lung cancer. This review article summarizes current surgical techniques that represent the "cutting edge" of thoracic surgery for lung cancer.

Sarcoma Pulmonary Metastatic Disease: Still a Chance for Cure.

Tumors of soft tissue origin are not common but are increasing in incidence. Given the rare and heterogeneous nature of the disease, deciding on an effective treatment approach to the patient can be challenging. Approximately 20-50% of patients with sarcoma will develop metastases to the lung via hematogenous spread. Despite improvements in systemic therapy options for patients with metastatic disease to the lung, surgical resection of metastases is often the preferred option in patients who are safe surgical candidates. Clearance of metastatic disease with surgical resection has been proven to be cost-effective and can improve chances for long term survival. Deciding on who may benefit from surgical resection is best achieved in a multidisciplinary setting.

Correlation between perioperative outcomes and long-term survival for non-small lung cancer treated at major centers.

BACKGROUND: The public is placing increased emphasis on specialty specific rankings, thereby affecting patients' choices of clinical care programs. In the spirit of transparency, public reporting initiatives are underway or being considered by various surgical specialties whose databases rank programs based on short-term outcomes. Of concern, short-term risk avoidance excludes important comparative cases from surgical database participation and may adversely affect overall long-term oncologic treatment team results. To assess the validity of comparing short-term perioperative and long-term survival outcomes of all patients treated at major centers, we studied the correlations between these variables. METHODS: The National Cancer Database was queried for patients diagnosed with non-small cell lung carcinoma (NSCLC) between 2008 and 2012, yielding 5-year follow-up data for all patients at centers treating at least 100 patients annually. Mortality (30- and 90-day), unplanned 30-day readmissions, and hospital length of stay were modeled using logistic regression with sex, race, age, Charlson-Deyo combined comorbidity, extent of surgery, income, insurance status, histology, grade, and analytic stage as predictors, all with 2-way interaction terms. The differences between the predicted rates and observed rates were calculated for each short-term outcome, and the average of these was used to create a short-term metric (STM). A similar approach was used to create a long-term metric (LTM) that used overall survival as a single dependent variable. Centers were ranked into deciles based on these metrics. Visual plotting as well as correlation coefficients were used to judge correlation between STM and LTM. RESULTS: A total of 298,175 patients from 541 centers were included in this analysis, of whom 102,860 underwent surgical resection for NSCLC. The correlation between STM and LTM was negative using parametric estimates (Pearson correlation coefficient = -0.09 [P = .03] and -0.22 [P < .01]) and nonparametric estimates (Spearman rank correlation coefficient = -0.09 [P = .02] and -0.22 [P < .01]) for squamous cell carcinoma and adenocarcinoma, respectively. CONCLUSIONS: Short-term perioperative outcome rankings correlate poorly with long-term survival outcome rankings when cancer treatment centers are compared. Factors explaining this discrepancy merit further study. Rankings based on short-term outcomes alone may be incomplete for public reporting.

Systematic Review of Single-Fraction Stereotactic Body Radiation Therapy for Early Stage Non-Small-Cell Lung Cancer and Lung Oligometastases: How to Stop Worrying and Love One and Done.

Adoption of single-fraction lung stereotactic body radiation therapy (SBRT) for patients with medically inoperable early stage non-small-cell lung cancer (NSCLC) or oligometastatic lung disease, even during the coronavirus disease 2019 (COVID-19) pandemic, was limited despite encouraging phase II trial results. Barriers to using single-fraction SBRT may include lack of familiarity with the regimen and lack of clarity about the expected toxicity. To address these concerns, we performed a systematic review of prospective literature on single-fraction SBRT for definitive treatment of early stage and oligometastatic lung cancer. A PubMed search of prospective studies in English on single-fraction lung SBRT was conducted. A systematic review was performed of the studies that reported clinical outcomes of single-fraction SBRT in the treatment of early stage non-small-cell lung cancer and lung oligometastases. The current prospective literature including nine trials supports the use of single-fraction SBRT in the definitive treatment of early stage peripheral NSCLC and lung oligometastases. Most studies cite local control rates of >90%, mild toxicity profiles, and favorable survival outcomes. Most toxicities reported were grade 1-2, with grade ≥3 toxicity in 0-17% of patients. Prospective trial results suggest potential consideration of utilizing single-fraction SBRT beyond the COVID-19 pandemic.