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Adjuvant Nivolumab vs Observation in Resected Non–Small Cell Lung Cancer
Sun, Zhuoxin, Rudin, Charles M., Khullar, Onkar V., Simone, Charles B., Oettel, Kurt, Kozono, David, Sunkara, Rajitha, Faller, Bryan, Hugec, Vladimir, Shipstone, Asheesh, McGary, Eric C., Clarke, Jeffrey M., Talsania, Ashita, Ding, Li, Heymach, J, Raez, Luis E., Malik, Shakun , Stinchcombe, T., Mandrekar, Sumithra J. , Bradley, J.D., Vokes, E., Gandara, David, Staley, Charles, Ramalingam, Suresh S., Chaft, Jamie E. , Sun, Zhuoxin, Rudin, Charles M. , Khullar, Onkar V. , Simone, Charles B. , Oettel, Kurt R., Kozono, David , Sunkara, Rajitha, Faller, Bryan A. , Isbell, James M. , Clarke, Jeffrey M., Govindan, Ramaswamy , Sands, Jacob , Heymach, John V. , Raez, Luis , Stinchcombe, Thomas E. , Gerber, David E. , Gandara, David R. , Ramalingam, Suresh S.

JAMA | June 1, 2026 | Volume: 336 | Issue: 6 | Pages: 464

10.1001/jama.2026.8992 | PMID 42224490 Get It

Importance Preoperative and perioperative nivolumab improve event-free survival in resectable non–small cell lung cancer. The role of adjuvant nivolumab after upfront surgery is unknown. Objective To determine whether adjuvant nivolumab improves disease-free survival and overall survival in patients with resected non–small cell lung cancer with any tumor programmed death-ligand 1 (PD-L1) expression and in those with at least 50% PD-L1 expression. Design, Setting, and Participants This open-label, randomized phase 3 study enrolled participants from May 2016 through September 2019, with median follow-up of 72.6 months at the data cutoff in December 2025. The study was conducted at 378 centers in the US National Clinical Trials Network. Patients were identified through a screening trial. Those with resected tumors at least 4 cm and/or who were lymph node positive (N1/N2) were eligible for inclusion after completion of planned standard adjuvant therapy if the tumor was adenocarcinoma without sensitizing sequence variants in EGFR and ALK or squamous cell carcinoma. Intervention Patients were randomized in a 1:1 ratio to receive nivolumab 480 mg intravenously every 4 weeks for up to 1 year or standard care observation. Main Outcomes and Measures Co–primary end points were disease-free survival in the intention-to-treat population and in those with tumoral PD-L1 expression at least 50%. Overall survival was examined if the corresponding test of disease-free survival was statistically significant. Results A total of 466 patients (median age, 66 years; 241 [52%] male) were assigned to receive nivolumab and 469 (median age, 67 years; 245 [52%] male) to undergo standard care observation. The median duration of follow-up was 72.6 months. The trial was stopped for futility at 75% information. In the intention-to-treat population, median disease-free survival was 71.3 months with nivolumab and 68.8 months with observation (hazard ratio for progression or death, 0.97 [97% CI, 0.79-1.20]; [95% CI, 0.81-1.17]; 1-sided P = .39). In the subset of participants with PD-L1 of at least 50%, median disease-free survival was 89.8 months with nivolumab and 78.5 months with observation (hazard ratio for progression or death, 0.86 [98% CI, 0.55-1.34]; [95% CI, 0.59-1.25]; 1-sided P = .22). Conclusions and Relevance Adjuvant nivolumab was not associated with improved disease-free survival in patients with resected non–small cell lung cancer without sensitizing EGFR and ALK alterations when given after planned adjuvant chemotherapy and/or radiotherapy. Trial Registration Clinicaltrials.gov Identifier: NCT02595944
CCTG BR.38: Consolidative use of radiotherapy to block (CURB2) oligoprogression in patients with metastatic non–small-cell lung cancer—A randomized phase III trial.
Tsai, CJillian , SUN, A, Bradbury, Penelope Ann, Schellenberg, Devin, Bahig, Houda, Fung, Andrea S. , Bissonnette, Jean‐Pierre , Das, Jeeban P. , Kidane, Biniam, Louie, Alexander V., Miccio, Joseph, Welliver, M.X., Varlotto, John M., Amini, Arya, Kelly, Ryan, Ding, Keyue , Gaudreau, Pierre-Olivier , Schellenberg, Devin , Bahig, Houda , Kidane, Biniam , Louie, Alexander V. , Miccio, Joseph A., Varlotto, John M. , Amini, Arya

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2026.44.16_suppl.tps8124 Get It

TPS8124 Background: Immune checkpoint inhibitor (ICI)–based regimens are standard first-line therapy for metastatic non–small-cell lung cancer (NSCLC) without actionable driver mutations; however, most patients experience disease progression within 12 months. A subset develop oligoprogression, defined by progression at a limited number of metastatic sites with otherwise controlled disease. Oligoprogression represents a therapeutic window in which local ablative therapy could be used to prolong disease control. In the prior phase II CURB trial, SBRT was shown to significantly prolong progression-free survival (PFS) in patients with oligoprogressive NSCLC. Methods: CCTG-BR38 is an international, multicenter, open-label, randomized phase III trial conducted through the NCI National Clinical Trials Network. Adults with stage IV NSCLC receiving first-line ICI ± chemotherapy who develop ≤5 extracranial oligoprogressive lesions are randomized 1:1 to: (1) switch to second-line standard systemic therapy or (2) SBRT (30 Gy in 3 fractions) to all oligoprogressive sites followed by continuation of the same first-line systemic therapy. Randomization is stratified by type of first-line systemic therapy (ICI alone vs ICI + chemotherapy), number of oligoprogressive lesions (1–2 vs 3–5), and ECOG performance status (0-1 vs 2). Patients with treated, stable brain metastases are eligible. Primary Endpoints: Dual primary endpoints are PFS and overall survival (OS). Secondary endpoints include safety (CTCAE v5.0), patient-reported adverse events (PRO-CTCAE), quality of life (EORTC QLQ-C30/LC13), and cost-effectiveness (EQ-5D-5L; Canadian sites). Optional blood and tissue collection for exploratory biomarker analyses are planned. Statistical Considerations: A total of 320 patients (160 per arm) will be enrolled. The sample size is based on detecting a HR of 0.7 for OS (an improvement in median OS from 10 to 14.3 months) with 80% power using a 1-sided 2% level test (the overall 1-sided 2.5% type I error will be assigned 2% to OS and 0.5% to PFS). Interim analyses for futility and efficacy are planned. Current Status: The trial was centrally activated on April 3, 2025. Accrual is ongoing across Canadian and US NCTN sites. Clinical trial information: NCT06686771 .
Arterial and venous thromboembolic events in ALK - and ROS1 -positive non–small cell lung cancer (NSCLC): A multicenter real-world analysis.
Azar, Ibrahim, Macaraeg, Chef Stan L. , Park, C H , Arter, Zhaohui , Nagasaka, Misako, Aldecoa, Kim Abbegail Tan , Azar, Ibrahim, Arter, Zhaohui , Ou, Sai‐Hong Ignatius , Nagasaka, Misako

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2026.44.16_suppl.e23419 Get It

e23419 Background: Current risk assessment for cancer-associated thrombosis remain suboptimal in NSCLC, likely due to unaccounted tumor-specific biology. Although ALK and ROS1-positive NSCLC share closely related structure and elevated thrombotic risk, real-world data on thromboembolic outcomes remain limited. Methods: This multicenter retrospective study was conducted using TriNetX, a global federated health research network;14 of 113 healthcare organizations contributed to analysis. Adults (≥18 years) with NSCLC ROS1 or ALK from 2012-2025 were included. Index event was defined as the first documented NSCLC diagnosis. Outcomes included cumulative incidence, Kaplan–Meier survival analysis (KMS), and event recurrence for arterial thromboembolism (ATE), deep vein thrombosis (DVT), and pulmonary embolism (PE). Analyses were conducted pre and post-propensity score matching (PSM) adjusted for age and sex. Subgroup analyses evaluated outcomes at 1, 3, 6, and ≥12 months. Results: 3,310 NSCLC patients were identified (ALK n=3,155; ROS1 n=155). Mean age was 73 years, with 52.8% female and 46.2% male; 72.5% White, 12.7% Black, 9.5% Asian; South (49%), Northeast (29%). ALK NSCLC were older than those with ROS1 (mean 68.9 vs 64.6 years, p<0.0001), with similar sex distribution. ROS1 had higher proportion of White (85% vs 72%), while ALK included more Asian and Black. Median follow-up prior to matching was 482 days for ROS1 (post-PSM:482) and 546 days for ALK (post-PSM:601) Incidence proportions in ROS1 NSCLC were 12.3% for ATE, 9.7% for DVT, and 12.9% for PE (vs. ALK: 22.6% for ATE, 12.5% for DVT, 11.8% for PE) For ATE, prior to PSM, ROS1 NSCLC demonstrated a significantly lower risk compared with ALK (16.6% vs 25.0%), with an absolute risk difference of −8.4% (95% CI −14.7 to −2.2; p=0.02) and relative risk of 0.66 (95% CI 0.46–0.96). KMS showed longer ATE-free survival in ROS1 compared to ALK (48.2% vs 44.5%, p=0.01; HR 0.60, 95% CI 0.40–0.91, p=0.04). After PSM, overall ATE risk difference did not reach statistical significance, although ROS1 continued to demonstrate lower risk (16.6% vs 25.8%; risk difference −9.2%, p=0.06). Notably, in the subgroup analyses, this significant risk difference emerged ≥12 months, with improved late ATE-free survival in ROS1(91.1% vs 80.3%, p=0.01). For VTE and PE, no significant differences in risk, survival analyses or recurrence, were observed between ROS1 and ALK before or after PSM (DVT risk: 9.2% vs 9.7% pre-PSM; 9.2% vs 10.1% post-PSM; PE: 11.2% vs 9.9% pre-PSM; 11.2% vs 8.6% post-PSM; all p>0.05). Conclusions: Arterial thromboembolism differed by oncogenic subtype, with higher ATE risk in ALK compared with ROS1-positive NSCLC, particularly ≥12-months. In contrast, no significant difference in venous thromboembolism and pulmonary embolism were observed; further validation in prospective studies is warranted.
Emergency vs elective presentation as a care-delivery phenotype in presumed early-stage lung cancer: A National Inpatient analysis.
Jones, Daniel T. , Nanda, Rishi Kumar , Srinivasmurthy, Ramaditya , Hattin, Riccesha, Hussain, Abbas, Thein, Kyaw Zin, Behl, Deepti , Leventakos, Konstantinos, Ta, Jason , Thein, Kyaw Zin , Shanshal, Mohamed

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2026.44.16_suppl.e23223 Get It

e23223 Background: Early-stage lung cancer is potentially curable with surgery, yet emergency or nonelective presentation represents a care-delivery phenotype reflecting failures in early diagnosis or access to care rather than tumor biology alone. The national impact of emergency presentation among surgically treated, presumed early-stage lung cancer patients is poorly defined. This study evaluates emergency versus elective presentation as a care-delivery phenotype and its association with perioperative morbidity, failure-to-rescue, and inpatient outcomes. Methods: A survey-weighted analysis of the National Inpatient Sample (2016–2023) was conducted. Adult lung cancer hospitalizations were identified using ICD-10-CM C34* in any diagnosis position. A presumed early-stage surgical cohort was defined by curative-intent lung resection without metastatic disease, malignant pleural effusion, or palliative care coding. The primary exposure was nonelective versus elective admission. Outcomes included in-hospital mortality; ICU-level care, defined by invasive mechanical ventilation, shock, or respiratory failure; major complications; failure-to-rescue; length of stay; and hospitalization cost and charges. Multivariable survey-weighted models adjusted for patient demographics, payer, neighborhood income, hospital characteristics, and year. Results: In the weighted cohort of 422,925 hospitalizations, nonelective admission occurred in 27.3%. After multivariable adjustment, nonelective admission was independently associated with higher odds of in-hospital mortality (adjusted odds ratio [aOR] 2.59, 95% CI 2.22–3.03), ICU-level care (aOR 4.53, 95% CI 4.32–4.76), and major complications (aOR 5.00, 95% CI 4.78–5.23), as well as longer length of stay (+2.42 days). Notably, failure-to-rescue among patients with major complications did not differ by admission type (aOR 0.90, 95% CI 0.77–1.05), indicating that excess mortality associated with nonelective presentation is driven by presentation severity and care pathway rather than differences in rescue quality. In unadjusted analyses, nonelective presentation was associated with higher mortality (2.21% vs 0.68%), greater ICU-level care use (33.8% vs 8.9%), more frequent major complications (45.0% vs 12.4%), and longer length of stay (7.84 vs 4.99 days) compared with elective admissions. Conclusions: In a procedure-defined, presumed early-stage lung cancer surgical cohort, nonelective admission identifies a common care-delivery failure phenotype associated with higher perioperative morbidity, ICU-level care, in-hospital mortality, and longer hospitalization. Emergency presentation represents a systems-level vulnerability in curative-intent lung cancer care and serves as a scalable and actionable marker for quality improvement and disparity-focused analyses.
Inpatient chemotherapy in small cell lung cancer as a high-risk care-delivery phenotype: National Inpatient Sample analysis.
Hattin, Riccesha, Hussain, Abbas, Srinivasmurthy, Ramaditya , Nanda, Rishi Kumar , Jones, Daniel T. , Thein, Kyaw Zin, Behi, Deepti, Leventakos, Konstantinos, Ta, Jason , Thein, Kyaw Zin , Shanshal, Mohamed

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2026.44.16_suppl.e23193 Get It

e23193 Background: Small cell lung cancer (SCLC) is typically treated with outpatient systemic therapy; inpatient chemotherapy during acute hospitalization represents a high-risk care-delivery phenotype driven by delayed diagnosis, access barriers, or acute clinical decompensation rather than tumor biology alone. National data describing this care pathway and its inpatient outcomes remain limited. Methods: The U.S. National Inpatient Sample (2016–2023) was analyzed using survey weights. Adult hospitalizations meeting an ICD-10–based proxy definition for small cell lung cancer, defined by lung cancer diagnoses combined with neuroendocrine malignancy codes and excluding palliative care admissions, were identified. Inpatient chemotherapy was defined using ICD-10-PCS administration codes with prespecified sensitivity definitions. Outcomes included in-hospital mortality (primary), ICU-level care, sepsis, acute kidney injury, length of stay, hospitalization costs, and routine discharge. Multivariable survey-weighted logistic regression adjusted for patient demographics, payer, admission characteristics, and hospital factors. Results: The analytic cohort included 2,507 unweighted hospitalizations, representing 12,535 nationally weighted admissions. In multivariable analyses adjusting for demographics, payer, admission characteristics, and hospital factors, inpatient chemotherapy was independently associated with higher in-hospital mortality (adjusted odds ratio [aOR] 2.31, 95% CI 1.48–3.60) and greater ICU-level care (aOR 2.80, 95% CI 1.86–4.23). These associations were consistent across prespecified sensitivity analyses. In unadjusted analyses, inpatient chemotherapy occurred in 12.3%–19.3% of admissions annually from 2016–2023 and was associated with higher mortality (8.7% vs 5.2%), greater ICU-level care (11.8% vs 4.9%), longer length of stay (11.6 vs 7.0 days), higher costs ($38,446 vs $23,746), and lower routine discharge rates (42.8% vs 48.4%). Among 400 admissions with procedure-day data, chemotherapy was administered a mean of 3–5 days after admission. Late inpatient chemotherapy (day ≥2) was associated with higher mortality (10.6% vs 5.6%), greater ICU-level care (14.8% vs 9.2%), longer hospitalization (14.1 vs 8.0 days), and higher costs ($46,203 vs $28,025) compared with early chemotherapy (day 0–1), supporting inpatient chemotherapy as a marker of late care escalation rather than planned inpatient treatment. Conclusions: Inpatient chemotherapy identifies a high-risk care-delivery phenotype in hospitalized small cell lung cancer, with higher mortality, greater ICU-level care, and increased resource use, supporting its role as a marker of late care escalation or system-level barriers and a scalable quality indicator.
Global lung cancer burden attributable to environmental and occupational exposures.
Batra, Akshee , Jani, Chinmay, Chitkara, Akshit , Batra, Nitya, Vyas, Abhinav, Anamika, Fnu, Chattopadhyay, Priya, Jindal, Tanisha , Lopes, Gilberto , Jani, Chinmay , Khosla, Atulya Aman , Paudel, Amrit, Anamika, Fnu, Chattopadhyay, Priya Ranjan, Singh, Rohit

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2026.44.16_suppl.e22677 Get It

e22677 Background: Lung cancer without tobacco exposure is a growing and preventable source of global morbidity driven by environmental and occupational exposures, with marked regional variation and unevenly addressed prevention strategies. Methods: Global Burden of Disease (GBD) 2023 estimates were used to quantify lung cancer disability-adjusted life years (DALYs) and age-standardized mortality rates (ASMRs) attributable to ambient particulate matter (PM2.5), household air pollution (HAP), residential radon, and occupational carcinogens across seven GBD super-regions from 1990–2023. Population attributable fractions (PAFs) and temporal trends were assessed, with sex-stratified analyses for radon and occupational exposures. Results: Air pollution accounted for the largest attributable lung cancer DALYs in low and middle-income regions, particularly South Asia, where PM2.5 (PAF 15.9%) and HAP (PAF 16.8%) together accounted for 32.7% of DALYs. In Sub-Saharan Africa, HAP alone accounted for 21.4%. Occupational carcinogens contributed the largest proportion in high-income regions (PAF 21.7%) and were associated with the highest DALY rate (230/100,000) and ASMR (13/100,000). From 1990–2023, HAP-attributable lung cancer burden declined across all regions (40–70%), consistent with transitions away from solid household fuels. In contrast, PM2.5-attributable DALY rates declined by 30–40% in high-income regions but increased by 40–50% in South Asia and the Middle East and North Africa. Radon- and occupational carcinogen–attributable burdens remained largely stable across most regions, although high-income regions experienced declines in radon (18.4%) and occupational carcinogen (32.1%) attributable DALY rates. Radon showed a modest male excess (male-to-female ratios 1.2–1.5), whereas occupational carcinogens demonstrated marked male predominance (often > 4). Conclusions: Despite substantial decrease in HAP related lung cancer burden, other modifiable factors including PM2.5, occupational carcinogen and radon exposure remain major contributors, specially in high-income regions where occupational exposures account for the largest PAF. These patterns suggest that reducing household energy exposure alone is insufficient. We need regional exposure targeted prevention strategies that extend beyond tobacco control and are relevant to oncology practice, survivorship and policy advocacy. Population-attributable fractions of lung cancer burden from environmental and occupational exposures across gbd super-regions. GBD Super-Region Air Pollution (PM2.5 + HAP) Residential Radon Occupational Carcinogens High-income 6.2 4.6 21.7 Central Europe, Eastern Europe & Central Asia 11.3 6.3 10.9 Latin America & Caribbean 12.5 4.1 11.9 North Africa & Middle East 21 3.7 12.7 South Asia 32.7 4.3 10 Sub-Saharan Africa 30.7 4.3 9.4 Southeast Asia, East Asia & Oceania 23.6 3.4 9.8
Prognosis of mediastinal lymph node metastases in pediatric patients with osteosarcoma and lung metastases.
Narasimhan, Avantika, Schoettler, Peter, Allen-Rhoades, Wendy A., Santore, Lee Ann , Narasimhan, Avantika Lakshmi , Allen‐Rhoades, Wendy , Polites, Stephanie F.

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2026.44.16_suppl.e22006 Get It

e22006 Background: Metastasectomy is recommended for select pediatric patients with osteosarcoma with resectable pulmonary parenchymal metastases. It is unclear whether pulmonary metastasectomy confers the same benefit to patients with hilar or mediastinal lymph node metastases (LNM). This study aims to characterize pediatric patients with osteosarcoma with thoracic LNM and their outcomes compared to those with only pulmonary parenchymal metastasis. Methods: This is a retrospective cohort study of patients aged 0-21 with osteosarcoma metastatic to the lung who underwent pulmonary metastasectomy between 2000-2024. Patients were categorized into groups based on the presence or absence of LNM on imaging reviewed by pediatric surgeons and radiologists. Descriptive statistics and Wilcoxon rank sum, chi-square or Fisher’s exact tests evaluated differences between patients with and without LNM. Kaplan-Meier survival curves with log-rank tests evaluated the relationship between the presence of LNM and outcomes. The primary outcome was overall survival (OS) with secondary outcomes of recurrence-free survival (RFS) and disease-free survival (DFS). Results: 39 patients met inclusion criteria for this study, of which 13 (33%) had LNM (Table). Of the 13 patients with LNM, 8 (62%) had a pulmonary metastasectomy after their LNM diagnosis. Patients with LNM had poorer OS after first metastasectomy (log-rank p = .027), DFS after first metastasectomy (p = .018), and RFS after diagnosis (p = .039) than patients with pulmonary parenchymal metastasis without LNM. Patients who underwent metastasectomy after their LNM diagnosis had improved OS after LNM diagnosis than patients who did not undergo metastasectomy (pairwise log-rank test with Bonferroni correction p = .015). Conclusions: Pediatric patients with osteosarcoma metastatic to the lung with LNM had poorer OS, DFS, and RFS compared to patients without LNM. These results confirm the importance of attention to the presence of nodal involvement in patients with pulmonary metastatic osteosarcoma. Despite their poor prognosis, these results suggest a persistent survival benefit to surgical intervention. Total N = 39 No LMN N = 26 LMNN = 13 p Age 13.7 (9.5, 16.1) 13.9 (9.0, 15.9) 13.7 (10.7, 16.5) .777 Female 15 (38%) 10 (38%) 5 (38%) > .999 Histology Chondroblastic Osteoblastic Telangiectatic 11 (39%)16 (57%)1 (3.6%) 9 (50%)8 (44%)1 (5.6%) 2 (20%)8 (80%)0 (0%) .162 Primary tumor site Chest wall Femur Humerus Pelvis Radius Tibia 2 (5.1%)24 (62%)5 (13%)2 (5.1%)1 (2.6%)5 (13%) 2 (7.7%)14 (54%)3 (12%)2 (7.7%)1 (3.8%)4 (15%) 0 (0%)10 (77%)2 (15%)0 (0%)0 (0%)1 (7.7%) .821 Lung metastases present at time of diagnosis 20 (51%) 13 (50%) 7 (54%) .821 Treatment protocol AOST0331 AOST06P1 CCG 7921 P9754 30 (81%)2 (5.4%)4 (11%)1 (2.7%) 19 (79%)1 (4.2%)3 (13%)1 (4.2%) 11 (85%)1 (7.7%)1 (7.7%)0 (0%) > .999 Lung nodules removed during first metastasectomy 3 (2, 6) 3 (2, 5) 6 (1, 20) .567
Efficacy and safety of intrathecal chemotherapy in EGFR -mutant non–small cell lung cancer with leptomeningeal metastases: A systematic review and meta-analysis.
Nanda, Rishi Kumar , Jones, Daniel T. , Thein, Kyaw Zin, Potter, Ashley, Sener, Ugur, Zadeh, G Z, Thein, Kyaw Zin , Potter, Ashley , Sener, Uğur , Shanshal, Mohamed

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2026.44.16_suppl.e20700 Get It

e20700 Background: Leptomeningeal metastases (LM) are a particularly challenging complication of EGFR-mutant non–small cell lung cancer (NSCLC) and are often associated with rapid neurologic decline. Intrathecal (IT) chemotherapy is frequently used in this setting, but its efficacy and safety have not been well defined. We conducted a systematic review and meta-analysis to assess neurologic response and treatment-related toxicity associated with IT chemotherapy in EGFR-mutant NSCLC with LM. Methods: We performed a PRISMA-guided search of MEDLINE, EMBASE, Cochrane CENTRAL, and targeted grey literature to identify prospective and retrospective studies reporting outcomes of IT chemotherapy in EGFR-mutant NSCLC with LM. Quantitative analyses were restricted to studies with extractable endpoints. Neurologic response and grade ≥3 toxicity were pooled using random-effects generalized linear mixed models with logit transformation. Heterogeneity was assessed using I² and τ². Prespecified sensitivity analyses examined neurologic response by route of administration (lumbar puncture vs Ommaya reservoir), concomitant EGFR-TKI use, and study design or era. Results: Four studies comprising 76 patients reported extractable neurologic response data. The pooled neurologic response rate was 81.9% (95% CI, 64.0%–92.0%), with moderate heterogeneity (I² = 63.4%, p = 0.04). Grade ≥3 toxicity was reported in three studies (n = 59), with a pooled incidence of 11.8% (95% CI, 3.2%–34.9%) and substantial heterogeneity (I² = 71.3%, p = 0.03). Myelosuppression was the most frequently reported severe adverse event, and no consistent signal of severe neurologic toxicity was identified. Exploratory sensitivity analysis suggested higher neurologic response in LP-treated cohorts compared with mixed LP/Ommaya cohorts; however, this finding was driven by a single small study and is likely influenced by limited sample size and selection bias and should be considered hypothesis-generating only. Neurologic response was otherwise consistent across study designs and eras. Stratification by concomitant EGFR-TKI use was limited by incomplete reporting. Median overall survival was variably reported and ranged from approximately 7 to 12 months. Conclusions: In EGFR-mutant NSCLC with leptomeningeal metastases, IT chemotherapy is associated with a high pooled neurologic response and relatively uncommon severe toxicity, although heterogeneity across studies remains substantial. The observed neurologic benefit appears consistent across study designs and is more likely related to underlying EGFR-sensitive disease biology than to a definitive effect of route of administration. These findings support further prospective evaluation of IT chemotherapy as part of multimodal treatment strategies in this high-risk population.
Effect of smoking status on risk of mortality for patients with lung cancer treated with immunotherapy.
Behl, Deepti , Parise, Carol, Parise, Carol A.

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2026.44.16_suppl.e20648 Get It

e20648 Background: Immune checkpoint inhibitors have become a mainstay of treatment for lung cancer. However, their effectiveness varies, and is strongly influenced by patient characteristics. Smoking is the most important etiologic factor for lung cancer, and is expected to be associated with a high tumor mutational burden, which may in turn influence immunotherapy response. However, the extent to which smoking status modifies the benefit of immunotherapy in real-world populations is not well established. Methods: We identified 43,437 cases of invasive lung cancer with documentation of smoking status from the California Cancer Registry 2010-2021. Immunotherapy was documented as given or not given. Smoking status was defined as never, current or former. Cox regression was used to assess the unadjusted risk of mortality associated with immunotherapy and after adjusting for age, sex, race/ethnicity, stage, socio-economic status (SES), Charlson Comorbidity Index and insurance status. Analyses were conducted separately for current and former and never smokers. Results: Smoking status was documented for 43,347 cases (never = 15.887, current = 27,056, and former = 404). There were 4,014 cases treated with immunotherapy. The unadjusted risk of mortality for patients treated with immunotherapy was increased in non-smokers whereas immunotherapy reduced the risk of mortality in current and former smokers. After adjustment, all patients had a reduced risk of mortality, but current and former smokers had a higher risk reduction than non-smokers. Conclusions: Smoking modifies the effect of immunotherapy in patients with lung cancer, and our data suggests patients who currently or formerly smoked may derive a greater benefit from immunotherapy. This will need careful patient messaging as we continue public efforts towards smoking cessation. Unadjusted and adjusted* hazard ratios and 95% confidence intervals for immunotherapy. Unadjusted Adjusted* HR (95%CI) HR (95%CI) Never smokers 1.35 (1.26, 1.45) 0.76 (0.70, 0.82) Current or former smoker 0.86 (0.82, 0.91) 0.52 (0.49, 0.55) *Adjusting for age, sex, race/ethnicity, stage, SES, Charlson Comorbidity Index and insurance status.
Comparative efficacy of immune checkpoint inhibitor–anti-VEGF inhibitor combinations in non–small cell lung carcinoma: A network meta-analysis of randomized trials.
Haseeb, Rafay, ARSHAD, H, Raza, Muhammad Zain, Gill, Omar Abdullah , Maqsood, Musab , Habib, Huzefa, Chaudhary, Hamza, Komel, Aqsa, Raza, Muhammad Zain , Talha, Muhammad

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2026.44.16_suppl.e20629 Get It

e20629 Background: Concomitant inhibition of the vascular endothelial growth factor (VEGF) pathway together with PD-1 or PD-L1 immune checkpoint blockade has demonstrated synergistic activity in non-small cell lung cancer (NSCLC). However, comparative evidence across individual immune checkpoint inhibitor (ICI) and anti-VEGF combinations remains limited. This network meta-analysis (NMA) aimed to evaluate and compare the efficacy of available ICI plus anti-VEGF combination strategies in NSCLC. Methods: A systematic search of three electronic databases and two clinical trial registries was conducted to identify randomized controlled trials evaluating combinations of ICIs with anti-VEGF agents. A frequentist NMA framework was applied using the netmeta package in R. Hazard ratios (HRs) were used for overall survival (OS) and progression-free survival (PFS), while odds ratios (ORs) were used for objective response rate (ORR). Treatment ranking was performed using P scores. Results: A total of 24 randomized controlled trials were included in the network. For survival outcomes, the combination of nivolumab plus bevacizumab demonstrated significantly improved OS (HR = 0.66, 95% CI 0.50–0.88) and PFS (HR = 0.46, 95% CI 0.27–0.81) compared with standard chemotherapy. In addition, atezolizumab plus bevacizumab was associated with a significant OS benefit over chemotherapy (HR = 0.79, 95% CI 0.65–0.95). Indirect comparisons showed that nivolumab plus bevacizumab significantly improved PFS compared with pembrolizumab monotherapy, as well as pembrolizumab combined with lenvatinib or chemotherapy. Furthermore, nivolumab combined with sitravatinib demonstrated significantly superior OS and PFS compared with ramucirumab and chemotherapy. For ORR assessed using RECIST 1.1, nivolumab-based combinations could not be incorporated into the network due to insufficient data, and no other combination demonstrated a statistically significant advantage over chemotherapy. However, indirect comparisons showed that pembrolizumab plus lenvatinib was superior to lenvatinib monotherapy (OR = 4.76, 95% CI 1.04–25.0). P-score rankings identified nivolumab plus bevacizumab as the top-ranked regimen for survival outcomes, followed by atezolizumab plus bevacizumab. For ORR, pembrolizumab plus lenvatinib ranked highest, followed by atezolizumab plus bevacizumab. Conclusions: Nivolumab-based ICI and anti-VEGF combinations, particularly with bevacizumab and sitravatinib, demonstrate the most favorable survival outcomes in NSCLC. Evidence for ORR remains limited, and further randomized comparisons are required to better define the relative efficacy of these combinations.