Stage IIIB Non-small Cell Lung Research Articles

Efficacy and surgical safety of sequential surgical resection after pembrolizumab plus chemotherapy for initial unresectable stage IIIB non-small cell lung cancer

IntroductionNeoadjuvant immunochemotherapy is effective in resectable NSCLC. However, its role in unresectable stage IIIB NSCLC patients remains controversial. This study aimed to demonstrate the efficacy and safety of neoadjuvant immunochemotherapy followed by surgical resection to treat initial unresectable stage IIIB NSCLC patients. MethodsThis study retrospectively analyzed 59 initial unresectable stage IIIB NSCLC patients who received induction pembrolizumab combined with chemotherapy between June 2019 and April 2022. Clinical characteristics, radiological and pathological responses, and survival outcomes were collected and evaluated. ResultsFifity-nine initial unresectable stage IIIB NSCLC patients were identified and divided into surgery (n = 23) and non-surgery (n = 36) groups with a median follow-up time of 15.0 months. The median PFS/DFS of the surgery group was significantly longer than the non-surgery group (not reached vs. 15.5 months, p = 0.0031). The median overall survival (OS) was not reached in both groups, and the OS rate was 100% (23/23) in the surgery group and 83.3% (30/36) in the non-surgery group. The pathological analysis suggested that 13 of 23 patients (56.5%) achieved major pathological response (MPR) or pathological complete response (pCR), and more squamous cell carcinoma cases were observed in the MPR group compared to the non-MPR group (p = 0.034). All patients in the surgery group had an R0 resection, and no surgical-related mortality was recorded; only three patients (13.0%) experienced any postoperative complications. ConclusionIn this retrospective study, surgical resection after neoadjuvant immunochemotherapy was promising for initial unresectable stage IIIB NSCLC patients, with a high MPR rate and good surgical safety.

Neoadjuvant Camrelizumab Plus Platinum-Based Chemotherapy vs Chemotherapy Alone for Chinese Patients With Resectable Stage IIIA or IIIB (T3N2) Non–Small Cell Lung Cancer

The benefit of neoadjuvant camrelizumab plus chemotherapy for resectable stage IIIA or IIIB non-small cell lung cancer (NSCLC) remains unknown. To assess the efficacy and safety of neoadjuvant camrelizumab plus chemotherapy vs chemotherapy alone for patients with resectable stage IIIA or IIIB NSCLC. In this randomized phase 2 clinical trial conducted at 2 hospitals in China, patients aged 18 to 70 years with resectable stage IIIA or IIIB (T3N2) NSCLC were enrolled between April 7, 2020, and January 12, 2022. Patients were randomly assigned to receive 3 cycles of camrelizumab (200 mg) plus chemotherapy (nab-paclitaxel, 130 mg/m2, and platinum [cisplatin, 75 mg/m2; carboplatin, area under the curve, 5; or nedaplatin, 100 mg/m2]) or chemotherapy alone, followed by surgery after 4 to 6 weeks. The primary end point was the pathologic complete response (pCR) rate. Secondary end points included the major pathologic response (MPR) rate, objective response rate (ORR), event-free survival (EFS), and safety. Disease-free survival (DFS, defined as the time from surgery to disease recurrence or death from any cause) was analyzed post hoc. Efficacy was assessed on a modified intention-to-treat basis. Ninety-four Chinese patients were randomized, and 88 (93.6%; median age, 61 years [IQR, 54-65 years]; 74 men [84.1%]) received allocated neoadjuvant treatment (43 received camrelizumab plus chemotherapy, and 45 received chemotherapy alone). Among these 88 patients, the pCR rate was 32.6% (14 of 43; 95% CI, 19.1%-48.5%) with camrelizumab plus chemotherapy vs 8.9% (4 of 45; 95% CI, 2.5%-21.2%) with chemotherapy alone (odds ratio, 4.95; 95% CI, 1.35-22.37; P = .008). The MPR rates were 65.1% (95% CI, 49.1%-79.0%) with camrelizumab plus chemotherapy and 15.6% (95% CI, 6.5%-29.5%) with chemotherapy alone. The radiographic ORRs were 72.1% (95% CI, 56.3%-84.7%) with camrelizumab plus chemotherapy and 53.3% (95% CI, 37.9%-68.3%) with chemotherapy alone. With a median follow-up of 14.1 months (IQR, 9.2-20.9 months), the median EFS and DFS were not reached in either group. The most common neoadjuvant treatment-related adverse events of grade 3 or higher were decreased white blood cell count (6 of 43 [14.0%] in the camrelizumab plus chemotherapy group vs 2 of 45 [4.4%] in the chemotherapy group) and decreased neutrophil count (3 of 43 [7.0%] in the camrelizumab plus chemotherapy group vs 5 of 45 [11.1%] in the chemotherapy group). No treatment-related deaths were reported. This randomized clinical trial found that among patients with resectable stage IIIA or IIIB (T3N2) NSCLC, camrelizumab plus chemotherapy, compared with chemotherapy alone, significantly improved the pCR rate with manageable toxic effects. ClinicalTrials.gov Identifier: NCT04338620.

116P Survival outcome of chemotherapy in stage IIIA and IIIB non-small cell lung cancer

116P Survival outcome of chemotherapy in stage IIIA and IIIB non-small cell lung cancer

Pembrolizumab leading to complete resolution of non-small cell lung cancer and microsatellite instability stable colon adenocarcinoma; two birds one stone

Introduction: Staging of non-small cell lung cancer is crucial in predicting patient prognosis and more importantly, determining cancer management. In patients without driver mutations, PD-L1 tumor proportion score evaluation becomes vital in dictating treatment, as immunotherapy can be recommended. These agents have been shown to lead to excellent outcomes, even in patients with late-stage disease. Case Report: A 69-year-old male with a history of chronic obstructive pulmonary disease (COPD) presented with worsening dyspnea found to have lung collapse from a large hilar soft tissue mass causing obstruction of the left mainstem bronchus. After malignancy workup, the patient was diagnosed with non-small cell lung cancer clinically staged as IIIB. An incidental finding of microsatellite instability colon cancer was also found during workup. Pembrolizumab treatment was initiated and led to near resolution of both tumors. Conclusion: Stage IIIB non-small cell lung cancer has an overall poor prognosis. Biomarker testing in our case prior to starting concurrent chemoradiation revealed the malignancy to have a 100% tumor proportion score for PD-L1, the fundamental reason why our patient’s treatment was successful. Based on our findings, we advocate for all patients with non-small cell lung cancer regardless of stage to undergo biomarker testing prior to therapy initiation. Furthermore, the resolution of PD-L1 negative microsatellite instability stable colon cancer after pembrolizumab therapy supports further investigation of the utility and mechanism of PD-1/PD-L1-based therapy in PD-L1 negative colon cancer.

Necrosis onstaging 18F FDG PET/CT is associated with worse progression-free survival in patients with stage IIIB non-small cell lung cancer.

The presence of pathological necrosis in the tumor is known to be a factor indicating worse survival. Our study defined necrosis in staging 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in patients with stage IIIB non-small-cell lung cancer (NSCLC) to investigate whether this is a poor prognostic marker. A total of 77 patients with NSCLC were evaluated. To evaluate necrosis on 18F FDG PET/CT, we drew a region of interest (ROI) in the area showing visually very low/or no FDG uptake on PET and PET/CT fusion images. If SUVmax was less than blood pool SUVmax and showed significantly less attenuation [10 to 30 Hounsfield units (HUs)] than surrounding tissue on low-dose correlative CT with non-intravenous contrast, we defined it as necrotic (PETNECROSIS). We evaluated the relationship of SUVmax, tumor size, and PETNECROSIS with progression-free survival (PFS) using a Cox proportional hazard regression model. A PFS analysis was performed on 16 patients treated with standard chemoradiotherapy (CRT) regimen. Tumor size ≤42 mm versus >42 mm (P = 0.044, HR: 6.103, 95 CI%: 1.053-35.358) and PETNECROSİS presence/absence (P = 0.027, HR: 6.719, 95 CI%: 1.245-36.264) were independent predictors for PFS. Patients with tumor size ≤42 mm and PETNECROSİS absence were associated with higher 1-year PFS rate than patients with tumor size >42 mm and PETNECROSİS presence (86% vs. 63.5% P = 0.005 and 87.5% vs. 29%, P = 0.001, respectively). PETNECROSİS is helpful to distinguish the patients who would suffer worse survival in stage IIIB NSCLC.

Role of Modified Frailty Index in Predicting Oncologic Outcomes From Moderately Hypofractionated Radiotherapy for Patients with Stage I-IIB Non-Small Cell Lung Cancer

Moderately hypofractionated regimens have emerged as an alternative to stereotactic body radiotherapy for patients with central/ultracentral non-small cell lung cancer (NSCLC) who are medically inoperable due to age, poor performance status (PS) or associated comorbidity and who may be at a higher risk of severe toxicity. In the present study, we utilize a modified frailty index (mFI) to identify frail patients and hypothesize that frailty could better stratify clinical outcomes in these patients.We retrospectively analyzed 32 consecutive patients with stage I-IIB NSCLC treated with 8-10 fraction hypofractionated radiation therapy (RT) in our multi-site practice. Patients who received prior thoracic RT were excluded. An 11 factor mFI score was calculated based on the following variables: ECOG score ≥ 2, impaired sensorium, diabetes, chronic lung disease, myocardial infarction within 6 months, hospitalization within 6 months for heart failure, coronary/cardiac disease, HTN on medication, history of transient ischemic attack, stroke with deficits, and peripheral vascular disease. Kaplan-Meier (KM) method was used to estimate 1-year overall-survival (OS), local control (LC), freedom from progression (FFP) and severe toxicity (≥ grade 3) with patients stratified by mFI score (0-3 vs ≥ 4), median age (< 78 vs ≥ 78) and ECOG PS (0-1 vs ≥ 2).The patient population was predominantly elderly (median 78 years; range 58-94), 84% Caucasian, with squamous cell carcinoma (50%). Eleven pts (34.3%) had clinical stage II disease; the rest had stage I. Patients were treated with 8-10 fractions with a dose range of 50-70 Gy. The most common regimen was 70 Gy in 10 fractions. At a median follow-up of 16 months, KM estimated 1-year OS for the whole cohort was 86%. When stratified by mFI score (0-3 vs ≥ 4), there was no significant difference in 1-year LC (78% vs 100%), FFP (73% vs 80%), or OS (81% vs 91%), respectively. When stratified by median age (< 78 vs ≥ 78), there was no significant difference in 1-year LC (76% vs 91%), FFP (71% vs 81%), or OS (93% vs 81%), respectively. When stratified by ECOG PS (0-1 vs ≥ 2), there was no significant difference in 1-year LC (84.7% vs 92.3%), FFP (79.4% vs 72.2%), or OS (87.4% vs 85.6%), respectively. Treatment was well-tolerated with only 3 instances of severe grade 3 toxicity (2 pts developed or had worsening of left ventricular systolic function, 1 developed a pneumonia requiring hospitalization), all in the frailer group (mFI score ≥ 4, P = 0.053). Stratification by median age and PS was not significant.Hypofractionated RT for early-stage NSCLC yields similar tumor control and survival whether stratified by frailty, age or PS. Higher frailty score showed a trend towards worse toxicity that was not detected by age and PS alone. Further analyses in larger datasets could evaluate significance of frailty index in this population.

Radical Minimally Invasive Surgery After Immuno-chemotherapy in Initially-unresectable Stage IIIB Non-small cell Lung Cancer.

Use of neoadjuvant immunotherapy agent in advanced stage NSCLC is controversial. Herein, we aim to report on a case series of successful conversion from initial unresectable stage cIIIB NSCLC to radical minimally invasive surgery through immunochemotherapy; with particular attention given to surgical outcomes and survival benefit of surgery. Fifty-one patients with initial stage cIIIB NSCLC who received PD-1 agents plus platinum-based chemotherapy between May, 2018 to August, 2020 were retrospectively identified. Surgical and oncological outcomes of enrolled patients were collected. Of 31 patients who underwent subsequent resection, 23 (74.2%) patients underwent lobectomy, 1 (3.2%) underwent pneumonectomy, 5 (16.1%) underwent sleeve lobectomy, and 2 (6.5%) with bilobectomy. The median surgical time was 205 minutes (range, 100-520). The average blood loss was 185 (range: 10-1100) ml. Dense adhesions or fibrosis was noted in 15 cases. The median postoperative hospital stay was 6 (range: 3-13) days. No surgical-related mortality was recorded, only 5 patients (16.1%) experienced any postoperative morbidity (no grade 3 complications). Ten patients (32.3%) had major pathological response, with mediastinal down-staging been observed in 22/31 (71.0%) patients. With a median after up of 15.4 months, thirty-one patients that had surgery had relatively longer median DFS/PFS compared to that of either non-responders or responders that without surgery (27.5 vs. 4.7 vs. 16.7 months, respectively). Radical surgery after chemoimmunotherapy in initial unresectable stage IIIB NSCLC seems to be safe with low surgical-related mortality and morbidity, and was favorably associated with longer DFS/PFS compared to those without surgery.

Perioperative chemoimmunotherapy in a patient with stage IIIB non-small cell lung cancer.

We present a case of a 56-year-old male patient with stage IIIB (T3N2M0) poorly differentiated squamous cell carcinoma of the lung. Four cycles of chemotherapy were first applied, and the patient had stable disease. However, the patient refused to receive radiotherapy, therefore second-line treatment chemotherapy combined with anti-PD-1 immunotherapy was applied. Partial response was reached at the 4th cycle of chemotherapy combined with anti-PD-1 immunotherapy. The neoadjuvant strategy was prolonged to 10 cycles but no significant change was observed on tumor size. The patient then underwent video-assisted thoracoscopic left lower lobectomy. Eight cycles of adjuvant PD-1 immunotherapy were applied postoperatively. Perioperative immunotherapy demonstrated good curative effect in this patient and no recurrence was observed at the clinic 40 months following surgery. Here we intend to explore the concept of immunotherapy combined with chemotherapy and surgery in neoadjuvant and adjuvant setting, and to investigate the possibility of extending this strategy in patients with stage IIIB non-small cell lung cancer (NSCLC).

Surgery to avoid fatal complications and secure radicality after definitive chemoradiotherapy for clinical T4N2M0 stage IIIB non-small cell lung cancer: a case report

BackgroundChemoradiotherapy (CRT) is the standard treatment for c-stage IIIB non-small cell lung cancer (NSCLC); however, patients who respond to CRT are at risk of developing fatal complications such as massive hemoptysis or infection. In such cases, surgery is an alternative option. Currently, there are limited reports on surgery for complications arising during definitive CRT for locally advanced NSCLC. We report a case of hemoptysis after definitive CRT for c-T4N2M0 stage IIIB NSCLC that was successfully treated with lower bilobectomy combined with left atrial resection.Case presentationA 72-year-old man with c-T4N2M0 stage IIIB NSCLC with left atrial invasion developed hemoptysis during CRT, which was discontinued to control hemoptysis. Chest computed tomography revealed a regressed and cavitated tumor. Three weeks after discontinuation of CRT, surgery was performed to avoid fatal complications and secure radicality. We performed lower bilobectomy combined with partial left atrial resection, which was performed using an automatic tri-stapler. The bronchial stump was covered with an omental flap. The resected specimen pathologically showed complete response with fistula between the intermediate bronchus and necrotic cavity in the tumor. His postoperative course was uneventful, and the patient was disease free at 10 months after surgery.ConclusionsWe successfully performed surgery after definitive CRT in a patient with c-T4N2M0 stage IIIB NSCLC. Partial left atrial resection was safely performed with an automatic tri-stapler. A complete pathological response to CRT was achieved. In a case with a chance of complete (R0) resection, when the risk of developing fatal complications might outweigh the risk of post-CRT surgery perioperative complications, surgery should be considered as a treatment option.

Definitive concurrent chemoradiotherapy outcomes in Stage IIIB nonsmall cell lung cancer patients younger than 45 years: A retrospective analysis of 145 patients.

To assess the survival outcomes and prognostic factors of young (≤45 years) Stage IIIB nonsmall cell lung cancer (NSCLC) patients treated with definitive concurrent chemoradiotherapy (C-CRT). Medical records of 145 Stage IIIB NSCLC patients (≤45 years) who received 60-66 Gy thoracic radiotherapy and concurrent 1-3 cycles of cisplatin-based doublet chemotherapy were retrospectively evaluated. The primary endpoint was overall survival (OS), while locoregional progression-free survival (LRPFS), progression-free survival (PFS), and evaluation of potential prognostic factors constituted the secondary endpoints. At median 21.6 months (range: 7.3-62.5) of follow-up, the median and 4-year survival estimates were 24.8 months and 24.2% for OS, 15.7 months and 18.9%, for LRPFS and 12.0 months and 11.2% for PFS, respectively. On univariate analyses, among all factors, the smaller tumor size (≤7.0 cm; P = 0.03), lower T-stage (T1-T2; P = 0.02), lower N-stage (N2; P = 0.01), absence of anemia before C-CRT (hemoglobin [Hb] ≥12 g/dL; P < 0.001), and lower/no pretreatment weight loss (WL ≤5%; P < 0.001) were found to be associated significantly with longer median OS durations, which also retained their independent significance on multivariate analyses, except for tumor size category. The encouraging median 24.8 months OS duration observed here in young NSCLC patients accords well with the results of recent landmark locally advanced NSCLC series without age stratification. Other than the well-established T and N stages, extra exhibit of superior OS in patients with initial Hb ≥12 g/dL and ≤5% WL levels suggests a noteworthy prognostic role for these two latter variables in the stratification of such patients.

Relationship Between Xanthine Oxidoreductase Activity and BRCA1 Levels in Patients with Stage IIIA and IIIB Non-Small Cell Lung Cancer Being Treated with Neoadjuvant Chemotherapy

Relationship Between Xanthine Oxidoreductase Activity and BRCA1 Levels in Patients with Stage IIIA and IIIB Non-Small Cell Lung Cancer Being Treated with Neoadjuvant Chemotherapy

Pleural fluid secondary to pulmonary cryptococcal infection: a case report and review of the literature

BackgroundPulmonary Cryptococcosis (PC) is diagnosed with increasing incidence in recent years, but it does not commonly involve the pleural space. Here, we report a HIV-negative case with advanced stage IIIB non-small cell lung cancer (NSCLC) treated with radiation therapy presented with dyspnea, a new PET-positive lung mass and bilateral pleural effusion suspecting progressive cancer. However, the patient has been diagnosed as pulmonary cryptococcal infection and successfully treated with oral fluconazole therapy.Case presentationA 77-year-old male with advanced stage non-small cell lung cancer treated with combined chemo-radiation therapy who presented with progressive dyspnea, a new PET-positive left lower lobe lung mass and bilateral pleural effusions. Initial diagnostic thoracentesis and bronchoscopy yielded no cancer, but instead found yeast forms consistent with cryptococcal organisms in the transbronchial biopsies of the left lower lobe lung mass. Subsequent to this, the previously collected pleural fluid culture showed growth of Cryptococcus neoformans. The same sample of pleural effusion was tested and was found to be positive for crytococcal antigen (CrAg) by a lateral flow assay (LFA). The patient has been treated with oral fluconazole therapy resulting in gradual resolution of the nodular infiltrates.ConclusionPC should be considered in immunosuppressed cancer patients. Additionally, concomitant pleural involvement in pulmonary cryptococcal infections may occur. The incidence of false positive 18FDG-PET scans in granulomatous infections and the use of CrAg testing in pleural fluid to aid in diagnosis are reviewed.

Moderately Hypofractionated Radiotherapy Alone for Stage I-IIB Non-small Cell Lung Cancer.

Introduction: The optimal management of patients with early non-small cell lung cancer (NSCLC) not amenable to surgical resection or stereotactic body radiotherapy (SBRT) or those with hilar nodal involvement ineligible for surgery or concurrent chemoradiotherapy is unclear. This report describes survival outcomes and toxicity profiles of patients treated with hypofractionated radiotherapy (HRT) alone.Methods: A total of 52 patients with Stage I-IIB NSCLC treated with HRT alone between 2010-2018 were reviewed. Patients were categorized as having ultracentral tumors if the planning target volume contacted or overlapped the proximal bronchial tree, esophagus, pulmonary vein or artery. Overall survival (OS) and progression-free survival (PFS) were estimated using the Kaplan-Meier method and the competing risk cumulative incidence of locoregional failure (LRF) and distant failure (DF) were estimated using death without failure as a competing risk. Pneumonitis and esophagitis rates were evaluated as per Acute Common Terminology Criteria for Adverse Events (CTCAE) version 4.0.Results: Of the 52 patients analyzed, 50 patients were treated with radiotherapy alone to a dose of 70.2 Gy in 26 fractions, one patient was treated with 68 Gy in 25 fractions and one patient was treated with 65 Gy in 26 fractions. The median age was 72 (range 48-89), 42% of patients had an Eastern Cooperative Oncology Group (ECOG) performance status of 2-3, 46% were stage I and 54% were stage II. Hilar nodal involvement was present in 21% of patients and 74% of node-negative patients had ultracentral primary tumors. Median OS was 39.6 months and the median PFS was 21.0 months. Overall three-year cumulative incidence of LRF and DF were 32% and 34%, respectively. Grade 3 pneumonitis occurred in two (4%) patients. No grade 3+ acute esophagitis or grade 4-5 toxicities were observed.Conclusion: Hypofractionated thoracic radiotherapy consisting of 70.2 Gy is well-tolerated and results in favorable locoregional control for stage I-IIB patients who are not candidates for SBRT, surgery, or concurrent chemoradiotherapy.

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

BackgroundStandard 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.MethodsPatients 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.ResultsOf 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.ConclusionsIn carefully selected patients with locally advanced non-small cell lung cancer, combining surgery with SBRT was well tolerated with no local failure.Trial registrationClinicalTrials.gov identifying number NCT01781741. Registered February 1, 2013.

Superior vena cava syndrome in a patient with locally advanced lung cancer with good response to definitive chemoradiation: a case report

BackgroundThe incidence of superior vena cava syndrome within the United States is roughly 15,000 cases per year. Superior vena cava syndrome is a potentially life-threatening medical condition; however, superior vena cava syndrome is not fatal in the majority of cases. Superior vena cava syndrome encompasses a collection of signs and symptoms resulting from obstruction of the superior vena cava, including swelling of the upper body of the head, neck, arms, and/or breast. It is also associated with cyanosis, plethora, and distended subcutaneous vessels. Lung cancer, including both non-small cell lung cancer and small cell lung cancer, is the most common extrinsic cause of superior vena cava syndrome. Intrinsic disruption of superior vena cava flow can also precipitate superior vena cava syndrome. This case report describes an unusual presentation and potential etiology of superior vena cava syndrome.Case presentationOur patient was a 51-year-old black woman with locally advanced, stage IIIB non-small cell lung cancer who had no clinical symptoms of superior vena cava syndrome at the time of diagnosis. However, she did have radiographic evidence of superior vena cava stenosis caused by extrinsic compression from her large right hilar primary tumor. She was treated with definitive chemoradiation, receiving 60 Gy of external beam radiation therapy given concurrently with chemotherapy. Three months after completion of radiotherapy, she developed signs of superior vena cava syndrome, including breast and supraclavicular swelling. She had a chest computed tomography scan showing over 50% reduction in the size of a right hilar mass; however, she had continued radiographic stenosis of the superior vena cava. The distribution of stenosis appeared to be inferior to the caudal extent of pretreatment tumor volume. She had no other radiographic indications for superior vena cava syndrome.ConclusionsGenerally, superior vena cava syndrome is the result of extrinsic compression of the superior vena cava by tumor. Our patient’s case represents the development of superior vena cava syndrome after an excellent response of tumor with near-complete tumor response. We suspect chemoradiation therapy as a potential etiology for the precipitation of the superior vena cava syndrome, which is currently not well reported in the medical literature.

P1.17-02 Low Prognostic Nutritional Index Predicts Poor Survival in Stage IIIB Non-Small Cell Lung Cancer Patients Treated with Chemoradiotherapy

The prognostic role of prognostic nutritional index (PNI) has been widely investigated and showed in many types of cancer. However, to our best knowledge, the significance of PNI has never been investigated in locally advanced non-small cell lung cancer (NSCLC) who were treated with concurrent chemoradiotherapy ( CCRT). Therefore in this current study, we aimed to investigate the prognostic impact of PNI on survival outcomes of locally advanced NSCLC undergoing CCRT. The data of 358 patients with stage IIIB NSCLC treated with CCRT were analyzed retrospectively. All patients received 60 to 66 Gy (2 Gy per fraction) thoracic radiotherapy and at least one course of platinum-based doublet chemotherapy concomitantly. For each patient PNI was calculated by the known formula in blood samples those were available prior to CCRT: [PNI=10×serum albumin (g/dl) + 0.005×total lymphocyte count (mm3)]. The primary endpoint was the association between PNI and overall survival (OS). Secondary endpoints were locoregional progression-free survival (LPFS) and progression-free survival (PFS). The survival curves were calculated by Kaplan-Meier method and log-rank test. The cutoff value of the PNI was analyzed by receiver operating curve (ROC). At a median follow-up of 22.5 months (2.4-123.5 months) 108 patients (30.2%) were still alive. For the whole study cohort median OS was 25.2 months (95 % CI: 22.7-27.7). The median LPFS and PFS were 15.4 months (95% CI: 14.4-16.4) and 10.7 months (95% CI: 9.7-11.7) respectively. In ROC analysis, calculated cutoff value of PNI was 40.1 (AUC: 67.8% (62.0-73.6); sensitivity: 73.1; specificity: 68.4, p<0.001). According to this, patients were grouped as follows, group 1: PNI>40 and group 2: PNI<40. Accordingly, for the patients in group 1, OS (36.7 vs. 16.8 months, p<0.001), LPFS (19.5 vs. 11.5 months, p<0.001) and PFS (13.6 vs. 8.6 months, p<0.001) times were significantly better as compared to patients in group 2. Results of the multivariate analysis demonstrated that the prognostic worth of PNI was independent of the other covariates (p<0.001, for each survival endpoints). Being the first of its kind study the result of this current investigation revealed that the PNI which is easy to calculate, easily achievable with no additional cost has a strong prognostic value in prognostic stratification of the stage IIIB NSCLC patients undergoing to CCRT.

119P Cisplatin/etoposide or paclitaxel/carboplatin with concurrent radiation therapy in stage IIIB non-small cell lung cancer: A one-year phase II trial at a low resource setting

119P Cisplatin/etoposide or paclitaxel/carboplatin with concurrent radiation therapy in stage IIIB non-small cell lung cancer: A one-year phase II trial at a low resource setting

Should surgery be part of the multimodality treatment for stage IIIB non-small cell lung cancer?

Traditionally, treatment for stage IIIB (T4N2M0 and T1-4N3M0) NSCLC consists in definitive chemoradiation. Surgery is used only anecdotally. Here, we studied outcome for patients treated with multimodality including surgery. Patients who underwent surgery for stage IIIB between 2000 and 2015 were retrospectively reviewed and data analyzed. Patients were selected for surgery if they would tolerate multimodality treatment, the tumor was deemed upfront resectable, and N2-N3 involvement was limited to a non-bulky single site. Survival was calculated from the date of surgery until last follow-up. Univariate and multivariate analysis were performed to identify prognostic factors. During the study period, 5416 patients underwent resection for NSCLC in our center. Sixty patients (1%) had clinical stage IIIB. Thirty-two patients had T4N2 NSCLC involving the carina and/or superior vena cava (n = 25, 78%), left atrium (n = 5, 16%), or other (n = 2, 6%). Half of the 28 patients with N3-disease had supraclavicular node involvement. Pneumonectomy was performed in 27 patients (45%). Twenty-nine patients (48%) had induction therapy, with chemotherapy alone. Adjuvant therapy was administered to 52 patients (87%), mostly chemoradiation. Complete resection rate was 92%. Post-operative mortality was 3%. Three- and 5-year overall survivals were 51% and 39%, respectively. Multivariate analysis identified incomplete resection (P = 0.008) and absence of adjuvant treatment (P = 0.032) as poor survival prognostic factors. Surgery can be considered as a component of multimodality therapy in highly selected patients with stage IIIB NSCLC based on encouraging 5-year survival of 39%.

Radiation-induced chondrosarcoma of the scapula after radiotherapy for lung cancer: a case report and review of the literature

BackgroundRadiotherapy associated with chemotherapy is a well-established treatment modality for locally advanced non-small cell lung cancers. Radiation-induced second malignancies, particularly radiation-induced sarcomas, are rare. Some authors reported a recent increase in the incidence of this rare complication, especially because of the improved prognosis and survival of patients after radiotherapy. Pathogenic mechanisms of radiation-induced sarcomas are poorly understood. However, diagnosis criteria are well established. Treatment options must be discussed and adapted to the patient’s profile. Surgery in irradiated tissue is challenging, with limited treatment options with chemotherapy and radiotherapy.Case presentationWe report the case of a 62-year-old Moroccan man diagnosed as having chondrosarcoma of his right scapula, who was irradiated 10 years ago for stage IIIB non-small cell lung cancer. This case was managed by a complete resection of the tumor with good functional and oncological outcomes. To the best of our knowledge, the scapular location of radiation-induced sarcoma after irradiation for lung cancer has never been described in the literature.ConclusionRadiation-induced sarcoma of the scapula represents a rare situation that must be actively researched to have access to an optimal therapeutic approach.

P3.01-078 Outcome of Stage IIIb Non-small Cell Lung Cancer (NSCLC) Patients – A Single Tertiary Center Experience

P3.01-078 Outcome of Stage IIIb Non-small Cell Lung Cancer (NSCLC) Patients – A Single Tertiary Center Experience