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Bian DJ, Lazaratos AM, Maritan SM, Quaiattini A, Zeng Z, Zhu Z, Sener U, Malani R, Kim YJ, Ichihara E, Cohen V, Rose AA, Bouganim N, Dankner M. Osimertinib is associated with improved outcomes in pre-treated non-small cell lung cancer leptomeningeal metastases: A systematic review and meta-analysiss. Heliyon 2024; 10:e29668. [PMID: 38698967 PMCID: PMC11064091 DOI: 10.1016/j.heliyon.2024.e29668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 05/05/2024] Open
Abstract
Purpose Leptomeningeal metastasis (LM) is a severe complication of non-small cell lung cancer (NSCLC). In patients with NSCLC LM harboring epidermal growth factor receptor (EGFR) mutations, osimertinib is favored over alternative EGFR tyrosine kinase inhibitors (TKIs). However, the efficacy of osimertinib relative to other EGFR-TKIs is not well established for patients with LM. We aimed to compare the efficacy of EGFR-TKIs in EGFR-mutated NSCLC LM. Methods This systematic review and meta-analysis performed according to PRISMA guidelines included studies of adult patients with EGFR-mutated NSCLC and a diagnosis of LM who received an EGFR-TKI for the treatment of LM. We searched Medline ALL, Embase, Cochrane Central Register of Controlled Trials, Scopus, and Web of Science Core Collection. The evaluation of biases was done by using the Ottawa-Newscastle scale. The hazard ratio was used as the parameter of interest for overall survival (OS) and central nervous system-specific progression-free survival (PFS). Results 128 publications were included with 243 patients and 282 lines of EGFR-TKI for NSCLC LM that met inclusion criteria. The median PFS in patients receiving any EGFR-TKI was 9.1 months, and the median OS was 14.5 months. In univariate analyses of the entire cohort, osimertinib treatment demonstrated significantly prolonged PFS, but not OS, compared to other EGFR-TKIs. Osimertinib demonstrated significantly prolonged PFS and OS in the subset of patients who were previously treated with EGFR-TKIs, but not in EGFR-TKI naïve patients. Conclusion Osimertinib is associated with improved outcomes compared to other EGFR-TKIs, particularly in patients previously treated with EGFR-TKIs. An important limitation is that most patients were derived from retrospective reports. These results highlight the need for prospective studies for this difficult-to-treat patient population.
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Affiliation(s)
- David J.H. Bian
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Anna-Maria Lazaratos
- Rosalind and Morris Goodman Cancer Institute, Montreal, Quebec, Canada
- Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Sarah M. Maritan
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Rosalind and Morris Goodman Cancer Institute, Montreal, Quebec, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
| | - Andrea Quaiattini
- Schulich Library of Physical Sciences, Life Sciences, and Engineering, McGill University, Montreal, Quebec, Canada
| | - Zhimin Zeng
- Department of Oncology, the Second affiliated hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhengfei Zhu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center Shanghai, Shanghai, China
| | - Ugur Sener
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Rachna Malani
- Department of Neurosurgery, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Yu Jung Kim
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - Eiki Ichihara
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Shikata-cho, Kita-Ku, Okayama City, Okayama, Japan
| | - Victor Cohen
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Gerald Bronfman Department of Oncology, Faculty of Medicine and Health Sciences, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
- Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, McGill University, Montreal, Quebec, Canada
| | - April A.N. Rose
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Gerald Bronfman Department of Oncology, Faculty of Medicine and Health Sciences, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
- Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, McGill University, Montreal, Quebec, Canada
| | - Nathaniel Bouganim
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Gerald Bronfman Department of Oncology, Faculty of Medicine and Health Sciences, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
- McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Matthew Dankner
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Rosalind and Morris Goodman Cancer Institute, Montreal, Quebec, Canada
- Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, McGill University, Montreal, Quebec, Canada
- McGill University Health Centre, McGill University, Montreal, Quebec, Canada
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Lu Z, Cai J, Zeng Z, Liu A. [Management of Drug Therapy for Leptomeningeal Metastasis of Sensitive Driver Gene Positive Non-small Cell Lung Cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2020; 23:710-718. [PMID: 32758347 PMCID: PMC7467993 DOI: 10.3779/j.issn.1009-3419.2020.102.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Leptomeningeal metastasis (LM) is one of the serious complications of advanced non-small cell lung cancer (NSCLC), although the incidence is not high, the clinical symptoms are severe and the prognosis is poor. LM is prone to occur in patients with positive driver gene than negative. At present, the treatment of LM mainly includes molecular targeted therapy, systemic chemotherapy, whole brain radiotherapy, intrathecal chemotherapy and immunotherapy. Although there are many treatments, the efficacy of LM is still unsatisfactory. This article reviews the drug therapy of sensitive driver gene positive NSCLC LM.
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Affiliation(s)
- Zhiqin Lu
- Department of Oncology, The Second Affiliated of Nanchang University, Nanchang 330006, China
| | - Jing Cai
- Department of Oncology, The Second Affiliated of Nanchang University, Nanchang 330006, China.,Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang 330006, China
| | - Zhimin Zeng
- Department of Oncology, The Second Affiliated of Nanchang University, Nanchang 330006, China.,Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang 330006, China
| | - Anwen Liu
- Department of Oncology, The Second Affiliated of Nanchang University, Nanchang 330006, China.,Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang 330006, China
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3
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Jiang Y, Zhang J, Huang J, Xu B, Li N, Cao L, Zhao M. Erlotinib versus gefitinib for brain metastases in Asian patients with exon 19 EGFR-mutant lung adenocarcinoma: a retrospective, multicenter study. BMC Pulm Med 2018; 18:171. [PMID: 30458751 PMCID: PMC6247515 DOI: 10.1186/s12890-018-0734-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 10/31/2018] [Indexed: 12/16/2022] Open
Abstract
Background The purpose of this study was to compare clinical outcomes of Erlotinib versus Gefitinib in the treatment of Asian patients with exon 19 EGFR-mutant lung adenocarcinoma and newly diagnosed brain metastases. Methods Consecutive Asian patients with exon 19 EGFR-mutant lung adenocarcinoma and newly diagnosed brain metastases were identified and initially received peroral administration of 150 mg/d erlotinib or 250 mg/d gefitinib during 2009–2015. Overall survival (OS) was the primary endpoint. Progression-free survival (PFS) was the second endpoint. Results The cohort consisted of 227 Asian patients (erlotinib-treated cohort: n = 112, mean age = 58.5 years [SD: 20.13]; gefitinib-treated cohort: n = 115, mean age = 58.4 years [SD: 19.52]). In a multivariate analysis controlling for age, sex and time span of smoking history, significant difference was detected in the 36-month OS between erlotinib and gefitinib groups (58.3% vs. 49.1%, p = 0.012). There was also significant difference in the 36-month PFS between erlotinib and gefitinib groups (64% vs. 53%, p = 0.013). Conclusion For Asian patients with exon 19 EGFR-mutant lung adenocarcinoma and brain metastases, erlotinib was associated with a significantly longer OS and a more prolonged PFS and compared with gefitinib.
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Affiliation(s)
- Ye Jiang
- Department of Neurology, The Affiliated hospital of Hebei University, Yuhua East Road No. 212, Baoding, 071000, Hebei, China
| | - Jing Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, China
| | - Juanjuan Huang
- Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Gusao Road No. 16, Jianghan District, Wuhan, 430014, Hubei, China
| | - Bo Xu
- Department of Thoracic surgery, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, China
| | - Ning Li
- Department of Neurology, The Affiliated hospital of Hebei University, Yuhua East Road No. 212, Baoding, 071000, Hebei, China
| | - Lei Cao
- Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Gusao Road No. 16, Jianghan District, Wuhan, 430014, Hubei, China
| | - Mingdong Zhao
- Department of Orthopaedics, Jinshan Hospital, Fudan University, Longhang Road No. 1508, Jinshan District, Shanghai City, 201508, China.
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Ahluwalia MS, Becker K, Levy BP. Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors for Central Nervous System Metastases from Non-Small Cell Lung Cancer. Oncologist 2018; 23:1199-1209. [PMID: 29650684 PMCID: PMC6263119 DOI: 10.1634/theoncologist.2017-0572] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 02/22/2018] [Indexed: 12/14/2022] Open
Abstract
Central nervous system (CNS) metastases are a common complication in patients with epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC), resulting in a poor prognosis and limited treatment options. Treatment of CNS metastases requires a multidisciplinary approach, and the optimal treatment options and sequence of therapies are yet to be established. Many systemic therapies have poor efficacy in the CNS due to the challenges of crossing the blood-brain barrier (BBB), creating a major unmet need for the development of agents with good BBB-penetrating biopharmaceutical properties. Although the CNS penetration of first- and second-generation EGFR tyrosine kinase inhibitors (TKIs) is generally low, EGFR-TKI treatment has been shown to delay time to CNS progression in patients with CNS metastases from EGFR-mutated disease. However, a major challenge with EGFR-TKI treatment for patients with NSCLC is the development of acquired resistance, which occurs in most patients treated with a first-line EGFR-TKI. Novel EGFR-TKIs, such as osimertinib, have been specifically designed to address the challenges of acquired resistance and poor BBB permeability and have demonstrated efficacy in the CNS. A rational, iterative drug development process to design agents that could penetrate the BBB could prevent morbidity and mortality associated with CNS disease progression. To ensure a consistent approach to evaluating CNS efficacy, special consideration also needs to be given to clinical trial endpoints. IMPLICATIONS FOR PRACTICE Historically, treatment options for patients who develop central nervous system (CNS) metastases have been limited and associated with poor outcomes. The development of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) has improved outcomes for patients with EGFR-mutated disease, and emerging data have demonstrated the ability of these drugs to cross the blood-brain barrier and elicit significant intracranial responses. Recent studies have indicated a role for next-generation EGFR-TKIs, such as osimertinib, in the treatment of CNS metastases. In the context of an evolving treatment paradigm, treatment should be individualized to the patient and requires a multidisciplinary approach.
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Affiliation(s)
| | - Kevin Becker
- Maimonides Medical Center, Brooklyn, New York, USA
| | - Benjamin P Levy
- Johns Hopkins University School of Medicine, Washington DC, USA
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5
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Abstract
Leptomeningeal metastasis (LM) results from dissemination of cancer cells to both the leptomeninges (pia and arachnoid) and cerebrospinal fluid (CSF) compartment. Breast cancer, lung cancer, and melanoma are the most common solid tumors that cause LM. Recent approval of more active anticancer therapies has resulted in improvement in survival that is partly responsible for an increased incidence of LM. Neurologic deficits, once manifest, are mostly irreversible, and often have a significant impact on patient quality of life. LM-directed therapy is based on symptom palliation, circumscribed use of neurosurgery, limited field radiotherapy, intra-CSF and systemic therapies. Novel methods of detecting LM include detection of CSF circulating tumor cells and tumor cell-free DNA. A recent international guideline for a standardization of response assessment in LM may improve cross-trial comparisons as well as within-trial evaluation of treatment. An increasing number of retrospective studies suggest that molecular-targeted therapy, such as EGFR and ALK inhibitors in lung cancer, trastuzumab in HER2+ breast cancer, and BRAF inhibitors in melanoma, may be effective as part of the multidisciplinary management of LM. Prospective randomized trials with standardized response assessment are needed to further validate these preliminary findings.
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Le Rhun E, Weller M, Brandsma D, Van den Bent M, de Azambuja E, Henriksson R, Boulanger T, Peters S, Watts C, Wick W, Wesseling P, Rudà R, Preusser M. EANO-ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up of patients with leptomeningeal metastasis from solid tumours. Ann Oncol 2017; 28:iv84-iv99. [PMID: 28881917 DOI: 10.1093/annonc/mdx221] [Citation(s) in RCA: 236] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023] Open
Affiliation(s)
- E Le Rhun
- Neuro-Oncology, Department of Neurosurgery, Lille University Hospital, Lille
- Neurology, Medical Oncology Department, Oscar Lambret Center, Lille
- Lille University, Inserm U-1192, Villeneuve d'Ascq, France
| | - M Weller
- Department of Neurology and Brain Tumour Center, University Hospital, Zurich, Switzerland
| | - D Brandsma
- Department of Neuro-Oncology, Netherlands Cancer Institute, Amsterdam
| | - M Van den Bent
- The Brain Tumour Center at the Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - E de Azambuja
- Medical Oncology Department, Institut Jules Bordet and L'Université Libre de Bruxelles (U.L.B), Brussels, Belgium
| | - R Henriksson
- Regional Cancer Center, Stockholm
- Department of Radiation Sciences and Oncology, University, Umea, Sweden
| | - T Boulanger
- Neuroradiology, Imaging Department, Oscar Lambret Center, Lille, France
| | - S Peters
- Department of Oncology, University Hospital, Lausanne, Switzerland
| | - C Watts
- Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - W Wick
- Neurology Clinic, Heidelberg University Hospital, Heidelberg
- Clinical Cooperation Unit Neuro-Oncology, German Consortium for Translational Cancer Research (DKTK), German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - P Wesseling
- Department of Pathology, VU University Medical Centre and Brain Tumour Center, Amsterdam
- Department of Pathology, Princess Máxima Center for Paediatric Oncology and University Medical Centre Utrecht, Utrecht, The Netherlands
| | - R Rudà
- Department of Neuro-Oncology, City of Health and Science Hospital, University of Turin, Turin, Italy
| | - M Preusser
- Clinical Division of Oncology, Department of Medicine 1, CNS Unit Comprehensive Cancer Centre (CCC-CNS), Medical University, Vienna, Austria
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7
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Ghosn M, Assi T, El Rassy E, Moussa T, Kattan J. An unexpected response to second line EGFR inhibitor in relapsing leptomeningeal carcinomatosis from lung adenocarcinoma raises questions on differential mechanisms of action of these agents. Bull Cancer 2017; 104:385-387. [PMID: 28131317 DOI: 10.1016/j.bulcan.2016.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 12/14/2016] [Accepted: 12/16/2016] [Indexed: 10/20/2022]
Affiliation(s)
- Marwan Ghosn
- Hotel-Dieu de France university hospital, Saint-Joseph university, faculty of medicine, department of hematology-oncology, Beirut, Lebanon
| | - Tarek Assi
- Hotel-Dieu de France university hospital, Saint-Joseph university, faculty of medicine, department of hematology-oncology, Beirut, Lebanon.
| | - Elie El Rassy
- Hotel-Dieu de France university hospital, Saint-Joseph university, faculty of medicine, department of hematology-oncology, Beirut, Lebanon
| | - Tania Moussa
- Hotel-Dieu de France university hospital, Saint-Joseph university, faculty of medicine, department of hematology-oncology, Beirut, Lebanon
| | - Joseph Kattan
- Hotel-Dieu de France university hospital, Saint-Joseph university, faculty of medicine, department of hematology-oncology, Beirut, Lebanon
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8
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Remon J, Le Rhun E, Besse B. Leptomeningeal carcinomatosis in non-small cell lung cancer patients: A continuing challenge in the personalized treatment era. Cancer Treat Rev 2016; 53:128-137. [PMID: 28110254 DOI: 10.1016/j.ctrv.2016.12.006] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/11/2016] [Accepted: 12/20/2016] [Indexed: 01/15/2023]
Abstract
Leptomeningeal metastasis is a fatal manifestation seen in advanced cancer patients. Its incidence is increasing, reaching 3.8% in molecularly unselected non-small cell lung cancer patients and up to 5% and 9% in ALK-rearranged and EGFR-mutant lung cancer patients, respectively. The prognosis remains poor despite systemic treatment, intrathecal chemotherapy, radiation therapy and personalized treatments in molecularly selected patients. However, new therapies with improved cerebral-spinal fluid penetration have been developed for subgroups of molecular selected patients indicating they could be promising therapeutic options for managing leptomeningeal disease. Systemic chemotherapy, which may be combined with intrathecal chemotherapy, remains standard treatment for lung cancer patients with leptomeningeal disease and a good-risk profile. We summarize evidence reported in the literature for managing this complication in lung cancer patients. Based on this, we have selected potential therapeutic strategies that could be used in daily clinical practice.
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Affiliation(s)
- J Remon
- Gustave Roussy, Medical Oncology Department, Villejuif, France.
| | - E Le Rhun
- Neurology, Oscar Lambert Center Lille, Neuro-Oncology Department, Lille University Hospital and Lille University, INSERM U-1192, France.
| | - B Besse
- Gustave Roussy, Medical Oncology Department, Villejuif, France; Paris Sud University, France.
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9
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Ma C, Jiang R, Li J, Wang B, Sun L, Lv Y. [Research progress of lung cancer with leptomeningeal metastasis]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2016; 17:695-700. [PMID: 25248713 PMCID: PMC6000511 DOI: 10.3779/j.issn.1009-3419.2014.09.10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
脑膜转移是肺癌最严重的并发症之一,患者预后极差。脑膜转移患者临床表现缺乏特异性,主要表现为脑、脑神经、脊神经受累症状。目前诊断主要依据肿瘤病史、临床症状、增强核磁共振(magnetic resnance image, MRI)扫描和脑脊液细胞学检查。近年来新的检测方式在临床上不断涌现,明显提高了脑膜转移的早期发现率,但肺癌脑膜转移的综合治疗疗效仍不令人满意。本文就肺癌脑膜转移的病理生理、临床表现、诊断方法及治疗疗效的研究进展做一综述。
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Affiliation(s)
- Chunhua Ma
- Department of Intervention, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Disease, Tianjin 300060, China
| | - Rong Jiang
- Department of Intervention, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Disease, Tianjin 300060, China
| | - Jinduo Li
- Department of Intervention, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Disease, Tianjin 300060, China
| | - Bin Wang
- Department of Intervention, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Disease, Tianjin 300060, China
| | - Liwei Sun
- Department of Intervention, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Disease, Tianjin 300060, China
| | - Yuan Lv
- Department of Intervention, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Disease, Tianjin 300060, China
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Karakolevska-Ilova M, Simeonovska Joveva E, Dimitrovska Ivanova M. Leptomeningeal Metastases in Solid Tumors. Open Access Maced J Med Sci 2014. [DOI: 10.3889/oamjms.2014.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Leptomeningeal metastases are diagnosed in 1% to 8% of patients with cancer. The most common histology is leukaemia, lymphoma, breast carcinoma, lung carcinoma and melanoma. The aim of this study is to show the appearance of leptomeningeal metastases in lung and breast cancer with specific biological features.AIM: The study is a review of two cases - breast and lung carcinoma with specific biological features who eventually have developed leptomeningeal metastases.CASE PRESENTATION: Although CNS metastasis most commonly occurs in those with known systemic metastases, our patient had biological indolent disease (nor hormone negative or HER 2 positive and no metastatic disease) and still LM did occur. LM remains a devastating complication of cancer with classic presentation with multifocal neurologic signs and symptoms (like the case with lung cancer), but many patients also have evidence of impaired CSF flow, and hydrocephalus may be the only presenting manifestation of LM.CONCLUSION: The prognostic factors associated with survival in patients with LM metastasis are not certain as well as right treatment for these patients which is still a big challenge. Due to the lack of randomized studies and especially of studies referring to one specific primary tumor, there is currently no generally accepted standard of care in the treatment of LM metastases.
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11
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Singh N, Jindal A, Behera D. Erlotinib usage after prior treatment with gefitinib in advanced non-small cell lung cancer: A clinical perspective and review of published literature. World J Clin Oncol 2014; 5:858-864. [PMID: 25493223 PMCID: PMC4259947 DOI: 10.5306/wjco.v5.i5.858] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 07/19/2014] [Accepted: 10/10/2014] [Indexed: 02/06/2023] Open
Abstract
Erlotinib and gefitinib are among the most widely researched, used and available molecularly targeted therapies for treatment of advanced non-small cell lung cancer (NSCLC). They are both tyrosine kinase inhibitors (TKIs) of the epidermal growth factor receptor (EGFR). In the past decade, there have been reports on clinical benefit from use of erlotinib after gefitinib failure in NSCLC patients. A review of published literature on this focussed topic is provided herein. Pooled analysis of published literature shows that majority of patients were female (60.6%), non-smokers (64.5%), had adenocarcinoma histology (88.3%) and were of East Asian ethnicity (92.3%). Presence of sensitizing EGFR mutation was detected in 48.4% of subjects. Disease control rates with prior gefitinib therapy and with subsequent erlotinib treatment were 79.4% and 45.4% respectively. Based upon our review, the most important predictive factor for clinical benefit from erlotinib identified was previous response to gefitinib. The exact explanations for the potential benefit from erlotinib use in this patient population is still not known and further studies are required to determine the role of molecular mechanisms especially those related to resistance to initial EGFR TKI therapy.
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12
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Fan Y, Xu X, Xie C. EGFR-TKI therapy for patients with brain metastases from non-small-cell lung cancer: a pooled analysis of published data. Onco Targets Ther 2014; 7:2075-84. [PMID: 25419145 PMCID: PMC4234163 DOI: 10.2147/ott.s67586] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Brain metastases are one of the leading causes of death from non-small-cell lung cancer (NSCLC). The use of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) to treat brain metastases remains controversial. Thus, we performed a pooled analysis of published data to evaluate the efficacy of EGFR-TKIs in NSCLC patients with brain metastases, particularly for tumors with activating EGFR mutations. Methods Several data sources were searched, including PubMed, Web of Science, and ASCO Annual Meetings databases. The end points were intracranial overall response rate (ORR), disease control rate (DCR), progression-free survival (PFS), overall survival (OS), and adverse events. The pooled ORR, DCR, PFS, and OS with 95% confidence intervals (CIs) were calculated employing fixed- or random-effect models, depending on the heterogeneity of the included studies. Results Sixteen published studies were included in this analysis, with a total of 464 enrolled patients. The EGFR mutational status was unknown for 362 (unselected group), and 102 had activating EGFR mutations. The pooled intracranial ORR and DCR were 51.8% (95% CI: 45.8%–57.8%) and 75.7% (95% CI: 70.3%–80.5%), respectively. A higher ORR was observed in the EGFR mutation group than in the unselected group (85.0% vs 45.1%); a similar trend was observed for the DCR (94.6% vs 71.3%). The pooled median PFS and OS were 7.4 months (95% CI, 4.9–9.9) and 11.9 months (95% CI, 7.7–16.2), respectively, with longer PFS (12.3 months vs 5.9 months) and OS (16.2 months vs 10.3 months) in the EGFR mutation group than in the unselected group. Conclusion This pooled analysis strongly suggests that EGFR-TKIs are an effective treatment for NSCLC patients with brain metastases, particularly in those patients harboring EGFR mutations. Larger prospective randomized clinical trials are warranted to confirm our conclusion and identify the most appropriate treatment model.
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Affiliation(s)
- Yun Fan
- Zhongnan Hospital of Wuhan University, Department of Radiation Oncology, Wuhan, People's Republic of China ; Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, People's Republic of China
| | - Xiaoling Xu
- Zhejiang Cancer Hospital, Hangzhou, People's Republic of China
| | - Conghua Xie
- Zhongnan Hospital of Wuhan University, Department of Radiation Oncology, Wuhan, People's Republic of China
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13
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Le Rhun E, Taillibert S, Chamberlain MC. Carcinomatous meningitis: Leptomeningeal metastases in solid tumors. Surg Neurol Int 2013; 4:S265-88. [PMID: 23717798 PMCID: PMC3656567 DOI: 10.4103/2152-7806.111304] [Citation(s) in RCA: 180] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 04/11/2013] [Indexed: 11/04/2022] Open
Abstract
Leptomeningeal metastasis (LM) results from metastatic spread of cancer to the leptomeninges, giving rise to central nervous system dysfunction. Breast cancer, lung cancer, and melanoma are the most frequent causes of LM among solid tumors in adults. An early diagnosis of LM, before fixed neurologic deficits are manifest, permits earlier and potentially more effective treatment, thus leading to a better quality of life in patients so affected. Apart from a clinical suspicion of LM, diagnosis is dependent upon demonstration of cancer in cerebrospinal fluid (CSF) or radiographic manifestations as revealed by neuraxis imaging. Potentially of use, though not commonly employed, today are use of biomarkers and protein profiling in the CSF. Symptomatic treatment is directed at pain including headache, nausea, and vomiting, whereas more specific LM-directed therapies include intra-CSF chemotherapy, systemic chemotherapy, and site-specific radiotherapy. A special emphasis in the review discusses novel agents including targeted therapies, that may be promising in the future management of LM. These new therapies include anti-epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors erlotinib and gefitinib in nonsmall cell lung cancer, anti-HER2 monoclonal antibody trastuzumab in breast cancer, anti-CTLA4 ipilimumab and anti-BRAF tyrosine kinase inhibitors such as vermurafenib in melanoma, and the antivascular endothelial growth factor monoclonal antibody bevacizumab are currently under investigation in patients with LM. Challenges of managing patients with LM are manifold and include determining the appropriate patients for treatment as well as the optimal route of administration of intra-CSF drug therapy.
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Affiliation(s)
- Emilie Le Rhun
- Breast Unit, Department of Medical Oncology, Centre Oscar Lambret and Department of Neuro Oncology, Roger Salengro Hospital, University Hospital, Lille, France
| | - Sophie Taillibert
- Neurology, Mazarin and Radiation Oncology, Pitié Salpétrière Hospital, University Pierre et Marie Curie, Paris VI, Paris, France
| | - Marc C. Chamberlain
- Neurology and Neurological Surgery, University of Washington, Fred Hutchinson Research Cancer Center, Seattle, WA, USA
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Grewal J, Saria MG, Kesari S. Novel approaches to treating leptomeningeal metastases. J Neurooncol 2011; 106:225-34. [PMID: 21874597 DOI: 10.1007/s11060-011-0686-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Accepted: 08/03/2011] [Indexed: 12/27/2022]
Abstract
Leptomeningeal metastasis is a devastating complication of the central nervous system in patients with late-stage solid or hematological cancers. Leptomeningeal metastasis results from the multifocal seeding of the leptomeninges by malignant cancer cells. Although central nervous system metastasis usually presents in patients with widely disseminated and progressive late-stage cancer, malignant cells may spread to the cerebrospinal fluid during earlier disease stages in particularly aggressive cancers. Treatment of leptomeningeal metastasis is largely palliative but will often provide stabilization and protection from further neurological deterioration and improve quality of life. There is a need to raise awareness of the impact of leptomeningeal metastases on cancer patients and its known and putative biological basis. Novel diagnostic approaches include identification of biomarkers that may stratify the risk for developing leptomeningeal metastasis. Current therapies can be used more effectively while waiting for advanced treatments to be developed.
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Affiliation(s)
- Jai Grewal
- Long Island Brain Tumor Center, NSPC, 600 Northern Blvd, Suite 113, Great Neck, NY 11577, USA
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