scholarly journals Radiation Plus Anti-PD-1 Therapy for NSCLC Brain Metastases: A Retrospective Study

2021 ◽  
Vol 11 ◽  
Author(s):  
Guixiang Liao ◽  
Yuting Qian ◽  
Sumbal Arooj ◽  
Zhihong Zhao ◽  
Maosheng Yan ◽  
...  

BackgroundRadiation therapy (RT) is the mainstay of brain metastases (BMs), and anti-PD-1 blockade has led to intracranial responses in non-small cell lung carcinoma (NSCLC) patients with BMs.ObjectiveThis study aimed to evaluate the efficacy and safety of adding anti-PD-1 blockade to RT in the management of NSCLC patients with BM in terms of survival outcome.Materials and MethodsWe retrospectively reviewed 70 NSCLC patients with BMs who were treated with whole brain radiation therapy (WBRT) between January 2016 and January 2021. Of the 70 patients, 29 additionally received anti-PD-1 therapy within 30 days of WBRT initiation. Baseline characteristics of the patients and efficacy outcomes such as progression-free survival (PFS) and overall survival (OS) were statistically compared using SPSS v26. Results were obtained using the Chi-square test/Fisher exact test, t-test, Kaplan-Meier, and Cox regression survival analyses.ResultsThe median survival for the entire cohort was 24 months (95% CI, 19.5–28.5). The median survival times for WBRT alone and WBRT plus anti-PD-1 therapy cohorts were 20 months (95% CI, 11.6–28.3) and 27 months (95% CI, 19.5–28.5), respectively (p=0.035). There was no statistical difference in PFS for the treatment cohorts (median PFS for WBRT alone: 7 months vs. 12 months for WBRT plus anti-PD-1, p=0.247). In EGFR wild-type subgroup (n=31), both PFS (p=0.037) and OS (p=0.012) were significantly improved. Only the treatment group (WBRT plus anti-PD-1) was a significant predictor of OS on univariate and multivariate analyses (p=0.040). There were no significant differences in adverse events among the treatment groups.ConclusionsNSCLC patients with BM receiving additional anti-PD-1 therapy may derive better OS than WBRT alone without any increase in adverse events. Prospective well-designed studies are warranted to validate and elucidate the additive effects of the two modalities in this group of patients.

2017 ◽  
Vol 5 (1) ◽  
pp. 37-45
Author(s):  
Anussara Prayongrat ◽  
Randa Tao ◽  
Pamela K Allen ◽  
Nandita Guha ◽  
Ganesh Rao ◽  
...  

Abstract Background Stereotactic radiosurgery (SRS) is an established treatment for brain metastases, yet little is known about SRS for neuroendocrine tumors given their unique natural history. Objective To determine outcomes and toxicity from SRS in patients with brain metastases arising from neuroendocrine tumors. Methods Thirty-three patients with brain metastases from neuroendocrine tumors who underwent SRS were retrospectively reviewed. Median age was 61 years and median Karnofsky performance status was 80. Primary sites were lung (87.9%), cervix (6.1%), esophagus (3%), and prostate (3%). Ten patients (30.3%) received upfront SRS, 7 of whom had neuroendocrine tumors other than small cell lung carcinoma. Kaplan-Meier survival and Cox regression analyses were performed to determine prognostic factors for survival. Results With median follow-up after SRS of 5.3 months, local and distant brain recurrence developed in 5 patients (16.7%) and 20 patients (66.7%), respectively. Median overall survival (OS) after SRS was 6.9 months. Patients with progressive disease per Response Assessment in Neuro-Oncology-Brain Metastases (RANO-BM) criteria at 4 to 6 weeks after SRS had shorter median time to developing recurrence at a distant site in the brain and shorter OS than patients without progressive disease: 1.4 months and 3.3 months vs 11.4 months and 12 months, respectively (both P < .001). Toxicity was more likely in lesions of small cell histology than in lesions of other neuroendocrine tumor histology, 15.7% vs 3.3% (P = .021). No cases of grade 3 to 5 necrosis occurred. Conclusions SRS is an effective treatment option for patients with brain metastases from neuroendocrine tumors with excellent local control despite slightly higher toxicity rates than expected. Progressive disease at 4 to 6 weeks after SRS portends a poor prognosis.


2021 ◽  
Vol 23 (Supplement_6) ◽  
pp. vi152-vi152
Author(s):  
Terry Stubbs ◽  
Kimberly DeVries ◽  
Ryan Proulx ◽  
Clement Ho ◽  
Arthur Cheung ◽  
...  

Abstract BACKGROUND Radiation therapy (RT) for brain metastases in patients with non-small cell lung cancer (NSCLC) has undergone considerable evolution but remains controversial. METHODS Records for 2212 patients with NSCLC who received RT to the brain at one of six locations between 1996-2016 were retrospectively analyzed. Data were obtained from the institutional cancer registry following ethics approval. Overall survival (OS) was calculated from diagnosis of lung cancer to death, and Kaplan-Meier curves were compared by Log-rank and Cox regression. RESULTS Median OS was 11.8 months (95%CI 11-12.6 months). Median age was 65, and 1254 patients (57%) were female. ECOG performance status at diagnosis was 0 (12%), 1 (31%), 2 (17%), 3 (14%), 4 (2%), and unknown (24%). Younger age (HR=0.99, 95%CI 0.98-0.99), female sex (HR=0.80, 95%CI 0.74-0.88), and better ECOG performance status (p&lt; 0.0001) were associated with superior OS. There was better OS in 932 patients (42%) that received chemotherapy (HR=0.63, 95%CI 0.58-0.69) and 603 (27%) that underwent surgery (HR=0.55, 95%CI 0.50-0.61). 2004 patients (91%) received 1 RT course, while 208 (9%) received multiple courses in various combinations of whole brain RT (WBRT) and stereotactic radiosurgery (SRS). SRS (HR=0.70, 95%CI 0.57-0.86) and multiple RT courses (HR=0.55, 95%CI 0.46-0.65) were associated with better OS. Median time from primary diagnosis to brain RT was 2.5 months, and from end of first brain RT to death was 3.5 months. A longer diagnosis to brain RT interval was associated with better OS (HR=0.95, 95%CI 0.95-96). CONCLUSIONS NSCLC patients with brain metastases continue to face poor prognosis, particularly when lung cancer diagnosis to first brain RT interval is short. Our analysis revealed younger age, female sex, and better ECOG performance status as predictors of superior survival. SRS and multiple RT courses also revealed superior survival, likely the result of patient selection and hence interpreted with caution.


2005 ◽  
Vol 102 (Special_Supplement) ◽  
pp. 247-254 ◽  
Author(s):  
Jason Sheehan ◽  
Douglas Kondziolka ◽  
John Flickinger ◽  
L. Dade Lunsford

Object. Lung carcinoma is the leading cause of death from cancer. More than 50% of those with small cell lung cancer develop a brain metastasis. Corticosteroid agents, radiotherapy, and resection have been the mainstays of treatment. Nonetheless, median survival for patients with small cell lung carcinoma metastasis is approximately 4 to 5 months after cranial irradiation. In this study the authors examine the efficacy of gamma knife surgery for treating recurrent small cell lung carcinoma metastases to the brain following tumor growth in patients who have previously undergone radiation therapy, and they evaluate factors affecting survival. Methods. A retrospective review of 27 patients (47 recurrent small cell lung cancer brain metastases) undergoing radiosurgery was performed. Clinical and radiographic data obtained during a 14-year treatment period were collected. Multivariate analysis was utilized to determine significant prognostic factors influencing survival. The overall median survival was 18 months after the diagnosis of brain metastases. In multivariate analysis, factors significantly affecting survival included: 1) tumor volume (p = 0.0042); 2) preoperative Karnofsky Performance Scale score (p = 0.0035); and 3) time between initial lung cancer diagnosis and development of brain metastasis (p = 0.0127). Postradiosurgical imaging of the brain metastases revealed that 62% decreased, 19% remained stable, and 19% eventually increased in size. One patient later underwent a craniotomy and tumor resection for a tumor refractory to radiosurgery and radiation therapy. In three patients new brain metastases were demonstrating on follow-up imaging. Conclusions. Stereotactic radiosurgery for recurrent small cell lung carcinoma metastases provided effective local tumor control in the majority of patients. Early detection of brain metastases, aggressive treatment of systemic disease, and a therapeutic strategy including radiosurgery can extend survival.


Author(s):  
Anna Cho ◽  
Helena Untersteiner ◽  
Dorian Hirschmann ◽  
Fabian Fitschek ◽  
Christian Dorfer ◽  
...  

Abstract Introduction The predictive value of the pre-radiosurgery Neutrophil-to-Lymphocyte Ratio (NLR), Platelet-to-Lymphocyte Ratio (PLR), Lymphocyte-to-Monocyte Ratio (LMR) and the modified Glasgow Prognostic Score (mGPS) was assessed for the first time in a homogenous group of NSCLC brain metastaes (BM) patients. Methods We retrospectively evaluated 185 NSCLC-BM patients, who were treated with Gamma Knife Radiosurgery (GKRS). Patients with immunotherapy or targeted therapy were excluded. Routine laboratory parameters were reviewed within 14 days before GKRS1. Results Median survival after GKRS1 was significantly longer in patients with NLR < 5 (p < 0.001), PLR < 180 (p = 0.003) and LMR ≥ 4 (p = 0.023). The Cox regression model for the continuous metric values revealed that each increase in the NLR of 1 equaled an increase of 4.3% in risk of death (HR: 1.043; 95%CI = 1.020–1.067, p < 0.001); each increase in the PLR of 10 caused an increase of 1.3% in risk of death (HR: 1.013; 95%CI = 1.004–1.021; p = 0.003) and each increase in the LMR of 1 equaled a decrease of 20.5% in risk of death (HR: 0.795; 95%CI = 0.697–0.907; p = 0.001). Moreover, the mGPS group was a highly significant predictor for survival after GKRS1 (p < 0.001) with a HR of 2.501 (95%CI = 1.582–3.954; p < 0.001). NLR, PLR, LMR values and mGPS groups were validated as independent prognostic factors for risk of death after adjusting for sex, KPS, age and presence of extracranial metastases. Conclusion NLR, PLR, LMR and mGPS represent effective and simple tools to predict survival in NSCLC patients prior to radiosurgery for brain metastases.


2021 ◽  
Author(s):  
Shinnosuke Takemoto ◽  
Kazumasa Akagi ◽  
Sawana Ono ◽  
Hiromi Tomono ◽  
Noritaka Honda ◽  
...  

Abstract Background: This study was designed to evaluate the treatment effect of S-1 following PEM-containing treatment. Methods: This retrospective study included patients with advanced (c-stage III or IV, UICC 7th) or recurrent NSCLC who received S-1 monotherapy following the failure of previous PEM-containing chemotherapy at 6 hospitals in Japan. Primary endpoint: Overall response rate (ORR). Secondary endpoint: Disease control rate (DCR), time to treatment failure (TTF), progression-free survival (PFS), and overall survival (OS). Results: A total of 53 NSCLC patients met the criteria. Forty-six patients had adenocarcinoma (88.7%) and no patients had squamous cell carcinoma. Thirty-one patients (58.5%) received the standard S-1 regimen and 18 patients (34.0%) received the modified S-1 regimen. ORR was 1.9% (95% confidential interval (CI): 0.00-10.1%). Median TTF, PFS, and OS were 65 days, 84 days, and 385 days, respectively. Conclusion: Although there were several limitations in this study, the ORR of S-1 after PEM in patients with non-SQ NSCLC was low compared to the historical control. It might be one of the choices to avoid S-1 treatment in PEM-treated patients who need tumor shrinkage.


2020 ◽  
Vol 13 (3) ◽  
pp. 1304-1310
Author(s):  
Cong Thao Trinh ◽  
Thanh Tam Thi Nguyen ◽  
Hoang Anh Thi Van ◽  
Van Trung Hoang

Small cell lung cancer, whose essence is neuroendocrine tumors, makes up proximately 14–20% of all lung cancer circumstances. Compared to non-small cell lung cancer, its clinical manifestation seems more positive and has a tendency to disseminate earlier in the process of its natural past. About 10% of patients present with brain metastases at the time of provisional diagnosis and sometimes all along the course of their disease, there will be 40–50% of developed brain metastases in addition. Although metastases in the brain parenchyma are often found in patients with advanced lung cancer, periventricular metastases are rare. We report one case of diffuse subependymal periventricular metastases from small cell carcinoma of the lung.


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