2019
Sequencing and curation strategies for identifying candidate glioblastoma treatments
Frank MO, Koyama T, Rhrissorrakrai K, Robine N, Utro F, Emde AK, Chen BJ, Arora K, Shah M, Geiger H, Felice V, Dikoglu E, Rahman S, Fang A, Vacic V, Bergmann EA, Vogel JLM, Reeves C, Khaira D, Calabro A, Kim D, Lamendola-Essel MF, Esteves C, Agius P, Stolte C, Boockvar J, Demopoulos A, Placantonakis DG, Golfinos JG, Brennan C, Bruce J, Lassman AB, Canoll P, Grommes C, Daras M, Diamond E, Omuro A, Pentsova E, Orange DE, Harvey SJ, Posner JB, Michelini VV, Jobanputra V, Zody MC, Kelly J, Parida L, Wrzeszczynski KO, Royyuru AK, Darnell RB. Sequencing and curation strategies for identifying candidate glioblastoma treatments. BMC Medical Genomics 2019, 12: 56. PMID: 31023376, PMCID: PMC6485090, DOI: 10.1186/s12920-019-0500-0.Peer-Reviewed Original ResearchConceptsPotential treatment optionClinical research studiesWhole-genome sequencingPharmacologic interventionsCancer patientsTreatment optionsClinical resultsPatientsConclusionThese resultsGlioblastoma treatmentPotential cancer treatmentPanel sequencingActionable variantsCancer treatmentGlioblastoma tumorsSame variantSequencing assaysDrug targetsRNA sequencingRNA-seqTreatmentNew York CitySequencingTumorsCliniciansBuparlisib in Patients With Recurrent Glioblastoma Harboring Phosphatidylinositol 3-Kinase Pathway Activation: An Open-Label, Multicenter, Multi-Arm, Phase II Trial
Wen PY, Touat M, Alexander BM, Mellinghoff IK, Ramkissoon S, McCluskey CS, Pelton K, Haidar S, Basu SS, Gaffey SC, Brown LE, Martinez-Ledesma JE, Wu S, Kim J, Wei W, Park MA, Huse JT, Kuhn JG, Rinne ML, Colman H, Agar NYR, Omuro AM, DeAngelis LM, Gilbert MR, de Groot JF, Cloughesy TF, S. A, Roberts TM, Zhao JJ, Lee EQ, Nayak L, Heath JR, Horky LL, Batchelor TT, Beroukhim R, Chang SM, Ligon AH, Dunn IF, Koul D, Young GS, Prados MD, Reardon DA, Yung WKA, Ligon KL. Buparlisib in Patients With Recurrent Glioblastoma Harboring Phosphatidylinositol 3-Kinase Pathway Activation: An Open-Label, Multicenter, Multi-Arm, Phase II Trial. Journal Of Clinical Oncology 2019, 37: jco.18.01207. PMID: 30715997, PMCID: PMC6553812, DOI: 10.1200/jco.18.01207.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAminopyridinesAntineoplastic AgentsBrain NeoplasmsChemotherapy, AdjuvantDisease ProgressionEnzyme ActivationFemaleGlioblastomaHumansMaleMiddle AgedMorpholinesNeoadjuvant TherapyNeoplasm Recurrence, LocalPhosphatidylinositol 3-KinasePhosphoinositide-3 Kinase InhibitorsProgression-Free SurvivalTime FactorsConceptsPhase II trialCohort 2Cohort 1PI3K pathwayTumor tissueII trialRecurrent glioblastomaBrain penetrationPan-PI3K inhibitor buparlisibPathway inhibitionPathway activationCommon grade 3K pathwayPrimary end pointGreater adverse eventsProgression-free survivalPI3K pathway inhibitionPI3K pathway activationPlasma drug levelsSingle-agent efficacySignificant brain penetrationPI3K inhibitorsMedian PFSOpen labelAdverse events
2018
Radiographic patterns of recurrence and pathologic correlation in malignant gliomas treated with bevacizumab
Thomas A, Rosenblum M, Karimi S, DeAngelis LM, Omuro A, Kaley TJ. Radiographic patterns of recurrence and pathologic correlation in malignant gliomas treated with bevacizumab. CNS Oncology 2018, 07: 7-13. PMID: 29388793, PMCID: PMC6001559, DOI: 10.2217/cns-2017-0025.Peer-Reviewed Original ResearchConceptsMalignant gliomasRecurrence patternsDiffusion-weighted imaging abnormalitiesDiffusion-weighted imagingStandard clinical settingMG patientsImaging abnormalitiesMRI abnormalitiesPathologic findingsTumor recurrenceRadiographic patternsPathologic correlationBevacizumabClinical settingNecrosisPatientsRecurrenceRecent reportsTumorsGliomasAbnormalitiesLeptomeningealSurgery
2017
Ibrutinib Unmasks Critical Role of Bruton Tyrosine Kinase in Primary CNS Lymphoma
Grommes C, Pastore A, Palaskas N, Tang SS, Campos C, Schartz D, Codega P, Nichol D, Clark O, Hsieh WY, Rohle D, Rosenblum M, Viale A, Tabar VS, Brennan CW, Gavrilovic IT, Kaley TJ, Nolan CP, Omuro A, Pentsova E, Thomas AA, Tsyvkin E, Noy A, Palomba ML, Hamlin P, Sauter CS, Moskowitz CH, Wolfe J, Dogan A, Won M, Glass J, Peak S, Lallana EC, Hatzoglou V, Reiner AS, Gutin PH, Huse JT, Panageas KS, Graeber TG, Schultz N, DeAngelis LM, Mellinghoff IK. Ibrutinib Unmasks Critical Role of Bruton Tyrosine Kinase in Primary CNS Lymphoma. Cancer Discovery 2017, 7: 1018-1029. PMID: 28619981, PMCID: PMC5581705, DOI: 10.1158/2159-8290.cd-17-0613.Peer-Reviewed Original ResearchMeSH KeywordsAdenineAdultAgammaglobulinaemia Tyrosine KinaseAgedAged, 80 and overAntineoplastic AgentsCARD Signaling Adaptor ProteinsCentral Nervous System NeoplasmsDrug Resistance, NeoplasmFemaleGuanylate CyclaseHumansLymphoma, B-CellMaleMaximum Tolerated DoseMiddle AgedMutationPiperidinesProtein Kinase InhibitorsProtein-Tyrosine KinasesPyrazolesPyrimidinesTreatment OutcomeYoung AdultConceptsPrimary central nervous system lymphomaBruton's tyrosine kinaseB-cell lymphomaRefractory B-cell lymphomaB cell antigen receptorCentral nervous system lymphomaRole of BTKDiffuse large B-cell lymphomaLarge B-cell lymphomaPhase I clinical trialClass BTK inhibitorIncomplete tumor responseNervous system lymphomaToll-like receptorsPI3K/mTORIbrutinib responseCNS lymphomaClinical responseComplete responseReceptor-associated proteinSystem lymphomaActivation markersTumor responseClinical trialsPCNSL cellsCerebrospinal fluid circulating tumor cells: a novel tool to diagnose leptomeningeal metastases from epithelial tumors
Lin X, Fleisher M, Rosenblum M, Lin O, Boire A, Briggs S, Bensman Y, Hurtado B, Shagabayeva L, DeAngelis LM, Panageas KS, Omuro A, Pentsova EI. Cerebrospinal fluid circulating tumor cells: a novel tool to diagnose leptomeningeal metastases from epithelial tumors. Neuro-Oncology 2017, 19: 1248-1254. PMID: 28821205, PMCID: PMC5570249, DOI: 10.1093/neuonc/nox066.Peer-Reviewed Original ResearchConceptsDiagnosis of LMLeptomeningeal metastasesCSF CTCsCSF cytologyEpithelial tumorsMRI findingsOptimal cutoffInstitutional review board-approved prospective studyTumor cellsNegative predictive value 97ROC analysisRare cell capture technologyPositive predictive value 90Positive CSF cytologyCSF of patientsSolid tumor patientsPrevious pilot studyClinical suspicionProspective studyCytology examinationTumor patientsLarge cohortCerebrospinal fluidPatientsStandard MRIDynamic contrast‐enhanced MRI perfusion for differentiating between melanoma and lung cancer brain metastases
Hatzoglou V, Tisnado J, Mehta A, Peck KK, Daras M, Omuro AM, Beal K, Holodny AI. Dynamic contrast‐enhanced MRI perfusion for differentiating between melanoma and lung cancer brain metastases. Cancer Medicine 2017, 6: 761-767. PMID: 28303695, PMCID: PMC5387174, DOI: 10.1002/cam4.1046.Peer-Reviewed Original ResearchConceptsMelanoma brain metastasesNSCLC brain metastasesLung cancer brain metastasesBrain metastasesCancer brain metastasesCell lung cancer brain metastasesDCE-MRIPrimary brain tumorsDifferent primary sitesImportant clinical implicationsMann-Whitney U testVolume transfer coefficientTumor histologyMultiple malignanciesMRI perfusionBrain tumorsMetastasisPrimary siteConventional MRIClinical implicationsPerfusion parametersTumor microvasculatureROC analysisU testPlasma volume
2016
Second‐opinion interpretations of neuroimaging studies by oncologic neuroradiologists can help reduce errors in cancer care
Hatzoglou V, Omuro AM, Haque S, Khakoo Y, Ganly I, Oh JH, Shukla-Dave A, Fatovic R, Gaal J, Holodny AI. Second‐opinion interpretations of neuroimaging studies by oncologic neuroradiologists can help reduce errors in cancer care. Cancer 2016, 122: 2708-2714. PMID: 27219108, PMCID: PMC4992439, DOI: 10.1002/cncr.30083.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overChildChild, PreschoolDiagnostic ErrorsFemaleFollow-Up StudiesHumansImage Interpretation, Computer-AssistedInfantMagnetic Resonance ImagingMaleMiddle AgedNeoplasm StagingNeoplasmsNeuroimagingObserver VariationPatient CarePhysiciansPrognosisRadiologistsReferral and ConsultationRetrospective StudiesTomography, X-Ray ComputedYoung AdultConceptsSecond-opinion interpretationsPatient managementMagnetic resonance imaging studySecond-opinion radiology reportsResonance imaging studyNational Cancer InstitutePatient ageNeuro-oncologistsCancer CenterDisease stageStudy criteriaCancer patientsClinical assessmentClinical impactNeck surgeonsRetrospective analysisHistopathologic analysisCancer InstituteImaging studiesRadiology reportsOutside reportsReference standardNeuroradiologistsSurgeonsDiscrepant reportsPrimary Oculocerebral Lymphoma: MTX Polychemotherapy Alone on Intraocular Disease Control
Nguyen D, Houillier C, Choquet S, Cassoux N, Soussain C, Le Cossec C, Legarf-Tavernier M, Costopoulos M, LeHoang P, Bodaghi B, Omuro A, Hoang-Xuan K, Touitou V. Primary Oculocerebral Lymphoma: MTX Polychemotherapy Alone on Intraocular Disease Control. Ophthalmology 2016, 123: 2047-2050. PMID: 27137876, DOI: 10.1016/j.ophtha.2016.03.043.Peer-Reviewed Original Research
2015
Methotrexate and temozolomide versus methotrexate, procarbazine, vincristine, and cytarabine for primary CNS lymphoma in an elderly population: an intergroup ANOCEF-GOELAMS randomised phase 2 trial
Omuro A, Chinot O, Taillandier L, Ghesquieres H, Soussain C, Delwail V, Lamy T, Gressin R, Choquet S, Soubeyran P, Huchet A, Benouaich-Amiel A, Lebouvier-Sadot S, Gyan E, Touitou V, Barrié M, del Rio M, Gonzalez-Aguilar A, Houillier C, Delgadillo D, Lacomblez L, Tanguy M, Hoang-Xuan K. Methotrexate and temozolomide versus methotrexate, procarbazine, vincristine, and cytarabine for primary CNS lymphoma in an elderly population: an intergroup ANOCEF-GOELAMS randomised phase 2 trial. The Lancet Haematology 2015, 2: e251-e259. PMID: 26688235, DOI: 10.1016/s2352-3026(15)00074-5.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAntimetabolites, AntineoplasticAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsCentral Nervous System NeoplasmsCytarabineDacarbazineDisease-Free SurvivalFemaleHumansLymphomaMaleMethotrexateMiddle AgedProcarbazineProspective StudiesQuality of LifeTemozolomideTreatment OutcomeVincristineConceptsPrimary CNS lymphomaProgression-free survivalKarnofsky Performance Scale scoreCytarabine groupPhase 2 trialCNS lymphomaPerformance Scale scoreTemozolomide groupElderly populationScale scoreMedian progression-free survivalPhase 2 trial designCommon grade 3Methotrexate-based regimensProphylactic G-CSFMedian overall survivalStandard chemotherapy regimenPoor prognosis patientsQuality of lifeChemotherapy regimenEfficacy endpointPrimary endpointPrognosis patientsElderly patientsImmunocompetent patients
2014
Clinical course and progression-free survival of adult intracranial and spinal ependymoma patients
Vera-Bolanos E, Aldape K, Yuan Y, Wu J, Wani K, Necesito-Reyes MJ, Colman H, Dhall G, Lieberman FS, Metellus P, Mikkelsen T, Omuro A, Partap S, Prados M, Robins HI, Soffietti R, Wu J, Gilbert MR, Armstrong TS. Clinical course and progression-free survival of adult intracranial and spinal ependymoma patients. Neuro-Oncology 2014, 17: 440-447. PMID: 25121770, PMCID: PMC4483095, DOI: 10.1093/neuonc/nou162.Peer-Reviewed Original ResearchConceptsProgression-free survivalClinical courseEpendymoma patientsMultivariate Cox proportional hazards modelMultivariate Cox proportional hazardsCox proportional hazards modelRare CNS tumorsTime of diagnosisPrognostic clinical factorsCox proportional hazardsProportional hazards modelSubtotal resectionClinical factorsMedian timeCNS tumorsCentral reviewGrade IIIMean ageTumor recurrenceEarly progressionTumor locationGrade IITumor gradeUnivariate analysisSupratentorial locationPhase II trial of sunitinib for recurrent and progressive atypical and anaplastic meningioma
Kaley TJ, Wen P, Schiff D, Ligon K, Haidar S, Karimi S, Lassman AB, Nolan CP, DeAngelis LM, Gavrilovic I, Norden A, Drappatz J, Lee EQ, Purow B, Plotkin SR, Batchelor T, Abrey LE, Omuro A. Phase II trial of sunitinib for recurrent and progressive atypical and anaplastic meningioma. Neuro-Oncology 2014, 17: 116-121. PMID: 25100872, PMCID: PMC4483051, DOI: 10.1093/neuonc/nou148.Peer-Reviewed Original ResearchConceptsVascular endothelial growth factor receptorPhase II trialWorld Health OrganizationGrowth factor receptorII trialPrimary endpointOverall survivalExploratory cohortIntratumoral hemorrhageGrade 3Small molecule tyrosine kinase inhibitorsSingle-arm phase II trialMalignant meningioma patientsRadiographic response rateMedian overall survivalEffective medical therapyProgression-free survivalFactor receptorEndothelial growth factor receptorPlatelet-derived growth factor receptorTyrosine kinase inhibitorsExpression of VEGFR2MR perfusion imagingHigh-grade meningiomasMedian PFSMethotrexate re-challenge for recurrent primary central nervous system lymphoma
Pentsova E, DeAngelis LM, Omuro A. Methotrexate re-challenge for recurrent primary central nervous system lymphoma. Journal Of Neuro-Oncology 2014, 117: 161-165. PMID: 24481997, PMCID: PMC5256683, DOI: 10.1007/s11060-014-1370-0.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntimetabolites, AntineoplasticCentral Nervous System NeoplasmsDisease ProgressionDisease-Free SurvivalFemaleFollow-Up StudiesHumansKaplan-Meier EstimateMaleMethotrexateMiddle AgedNeoplasm Recurrence, LocalPrognosisRetreatmentRetrospective StudiesSalvage TherapyTreatment OutcomeConceptsPrimary CNS lymphomaKarnofsky performance scoreProgression-free survivalInitial diagnosisRecurrent primary central nervous system lymphomaPrimary central nervous system lymphomaMedian Karnofsky performance scoreMedian progression-free survivalCentral nervous system lymphomaObjective response rateNervous system lymphomaMedian OSCNS lymphomaFree survivalRecurrent diseaseSalvage treatmentFirst relapsePartial responsePCNSL patientsPrognostic factorsComplete responseMedian ageSystem lymphomaDisease relapseMedian time
2013
Primary leptomeningeal lymphoma
Taylor JW, Flanagan EP, O'Neill BP, Siegal T, Omuro A, DeAngelis L, Baehring J, Nishikawa R, Pinto F, Chamberlain M, Hoang-Xuan K, Gonzalez-Aguilar A, Batchelor T, Blay JY, Korfel A, Betensky RA, Lopes MB, Schiff D. Primary leptomeningeal lymphoma. Neurology 2013, 81: 1690-1696. PMID: 24107866, PMCID: PMC3812109, DOI: 10.1212/01.wnl.0000435302.02895.f3.Peer-Reviewed Original ResearchConceptsPrimary leptomeningeal lymphomaPrimary CNS lymphomaLeptomeningeal lymphomaCNS lymphomaLeptomeningeal enhancementCSF cytologyMedian Eastern Cooperative Oncology Group performance statusRare formEastern Cooperative Oncology Group performance statusInternational Primary CNS Lymphoma Collaborative GroupIntra-CSF chemotherapyMedian overall survivalFavorable clinical responseCases of lymphomaOptimal diagnostic evaluationGene rearrangement studiesB-cell lymphomaMultifocal symptomsSalvage treatmentSystemic chemotherapyClinical responseOverall survivalPerformance statusMedian ageSystemic involvementPotential Role of Preoperative Conventional MRI Including Diffusion Measurements in Assessing Epidermal Growth Factor Receptor Gene Amplification Status in Patients with Glioblastoma
Young R, Gupta A, Shah A, Graber J, Schweitzer A, Prager A, Shi W, Zhang Z, Huse J, Omuro A. Potential Role of Preoperative Conventional MRI Including Diffusion Measurements in Assessing Epidermal Growth Factor Receptor Gene Amplification Status in Patients with Glioblastoma. American Journal Of Neuroradiology 2013, 34: 2271-2277. PMID: 23811973, PMCID: PMC4712068, DOI: 10.3174/ajnr.a3604.Peer-Reviewed Original ResearchAdolescentAdultAgedAged, 80 and overBiomarkers, TumorBrain NeoplasmsErbB ReceptorsFemaleGene AmplificationGlioblastomaHumansMagnetic Resonance ImagingMaleMiddle AgedMolecular ImagingPreoperative CarePrognosisReproducibility of ResultsSensitivity and SpecificityTissue DistributionUp-RegulationYoung Adult
2012
Phase II trial of continuous low-dose temozolomide for patients with recurrent malignant glioma
Omuro A, Chan TA, Abrey LE, Khasraw M, Reiner AS, Kaley TJ, Deangelis LM, Lassman AB, Nolan CP, Gavrilovic IT, Hormigo A, Salvant C, Heguy A, Kaufman A, Huse JT, Panageas KS, Hottinger AF, Mellinghoff I. Phase II trial of continuous low-dose temozolomide for patients with recurrent malignant glioma. Neuro-Oncology 2012, 15: 242-250. PMID: 23243055, PMCID: PMC3548585, DOI: 10.1093/neuonc/nos295.Peer-Reviewed Original ResearchConceptsKarnofsky performance scoreProgression-free survival ratesBevacizumab-naive patientsRecurrent malignant gliomaPhase II trialMalignant gliomasII trialPrimary endpointSurvival rateContinuous low-dose temozolomideMedian Karnofsky performance scoreLow Karnofsky performance scoreAdvanced malignant gliomaLow-dose temozolomideMedian overall survivalHalf of patientsFurther treatment strategiesMutations of EGFRBevacizumab exposureEligible patientsTemozolomide schedulesMG patientsOverall survivalMedian ageClinical benefitOutcomes of the oldest patients with primary CNS lymphoma treated at Memorial Sloan-Kettering Cancer Center
Welch MR, Omuro A, DeAngelis LM. Outcomes of the oldest patients with primary CNS lymphoma treated at Memorial Sloan-Kettering Cancer Center. Neuro-Oncology 2012, 14: 1304-1311. PMID: 22952196, PMCID: PMC3452344, DOI: 10.1093/neuonc/nos207.Peer-Reviewed Original ResearchConceptsMemorial Sloan-Kettering Cancer CenterOlder patientsCancer CenterSurvival rateLower baseline creatinine clearanceMedian progression-free survivalTwo-year survival rateBaseline creatinine clearanceDeep brain involvementSignificant renal toxicityMedian overall survivalPrimary CNS lymphomaProgression-free survivalTertiary care centerHigh-dose MTXPredictors of survivalFifth treatment cycleOcular radiationAggressive therapyCNS lymphomaBrain involvementCreatinine clearanceMost patientsOverall survivalPCNSL patientsMRI perfusion in determining pseudoprogression in patients with glioblastoma
Young RJ, Gupta A, Shah AD, Graber JJ, Chan TA, Zhang Z, Shi W, Beal K, Omuro AM. MRI perfusion in determining pseudoprogression in patients with glioblastoma. Clinical Imaging 2012, 37: 41-49. PMID: 23151413, PMCID: PMC4755513, DOI: 10.1016/j.clinimag.2012.02.016.Peer-Reviewed Original ResearchLimited Overall Survival in Patients with Brain Metastases from Triple Negative Breast Cancer
Morris PG, Murphy CG, Mallam D, Accordino M, Patil S, Howard J, Omuro A, Beal K, Seidman AD, Hudis CA, Fornier MN. Limited Overall Survival in Patients with Brain Metastases from Triple Negative Breast Cancer. The Breast Journal 2012, 18: 345-350. PMID: 22607041, DOI: 10.1111/j.1524-4741.2012.01246.x.Peer-Reviewed Original ResearchConceptsBrain metastasesOverall survivalBreast cancerDiagnosis of BMIncidence of BMMedian age 53 yearsRisk of BMTriple-negative breast cancerActuarial median survivalLimited overall survivalAge 53 yearsGroup of patientsPatterns of recurrenceSingle-institution studyNegative breast cancerElectronic medical recordsBM diagnosisMedian survivalMetastatic diseaseEntire cohortRetrospective studyTherapeutic optionsInstitutional databaseMedical recordsModern therapyAtypical and anaplastic meningiomas treated with bevacizumab
Nayak L, Iwamoto FM, Rudnick JD, Norden AD, Lee EQ, Drappatz J, Omuro A, Kaley TJ. Atypical and anaplastic meningiomas treated with bevacizumab. Journal Of Neuro-Oncology 2012, 109: 187-193. PMID: 22544653, DOI: 10.1007/s11060-012-0886-4.Peer-Reviewed Original ResearchConceptsProgression-free survivalVascular endothelial growth factor receptorAnaplastic meningiomasRadiographic responseMedian progression-free survivalBest radiographic responseEfficacy of bevacizumabMonths PFS rateEndothelial growth factor receptorKaplan-Meier statisticsActivity of bevacizumabEffective chemotherapeutic optionsAnti-angiogenic agentsTumor blood volumeMR perfusion studiesGrowth factor receptorPFS ratesStable diseaseBevacizumab therapyOverall survivalRANO criteriaRetrospective reviewSurgical optionsProspective studyAggressive tumorsLeptomeningeal Metastasis from Non-small Cell Lung Cancer: Survival and the Impact of Whole Brain Radiotherapy
Morris PG, Reiner AS, Szenberg OR, Clarke JL, Panageas KS, Perez HR, Kris MG, Chan TA, DeAngelis LM, Omuro AM. Leptomeningeal Metastasis from Non-small Cell Lung Cancer: Survival and the Impact of Whole Brain Radiotherapy. Journal Of Thoracic Oncology 2012, 7: 382-385. PMID: 22089116, DOI: 10.1097/jto.0b013e3182398e4f.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdultAgedAged, 80 and overCarcinoma, Non-Small-Cell LungCarcinoma, Squamous CellCranial IrradiationDose Fractionation, RadiationFemaleFollow-Up StudiesHumansImage Processing, Computer-AssistedLung NeoplasmsLymphatic MetastasisMaleMeningeal CarcinomatosisMiddle AgedNeoplasm Recurrence, LocalPrognosisRetrospective StudiesSurvival RateConceptsNon-small cell lung cancerWhole brain radiotherapyCell lung cancerLeptomeningeal metastasesTyrosine kinase inhibitorsLandmark analysisIT chemotherapyBrain radiotherapyIntrathecal therapyMedian survivalLung cancerEGFR mutationsEpidermal growth factor receptor tyrosine kinase inhibitorsGrowth factor receptor tyrosine kinase inhibitorsMedian age 59 yearsReceptor tyrosine kinase inhibitorsMedian overall survivalAge 59 yearsOptimal therapeutic approachSurvival of patientsDevastating complicationOverall survivalLeptomeningeal carcinomatosisRetrospective reviewRetrospective study