2024
FRailty in Australian patients admitted to Intensive care unit after eLective CANCER-related SURGery: a retrospective multicentre cohort study (FRAIL-CANCER-SURG study)
Ling R, Ueno R, Alamgeer M, Sundararajan K, Sundar R, Bailey M, Pilcher D, Subramaniam A. FRailty in Australian patients admitted to Intensive care unit after eLective CANCER-related SURGery: a retrospective multicentre cohort study (FRAIL-CANCER-SURG study). British Journal Of Anaesthesia 2024, 132: 695-706. PMID: 38378383, DOI: 10.1016/j.bja.2024.01.020.Peer-Reviewed Original ResearchConceptsElective surgeryCohort studyMulticentre retrospective cohort studyRetrospective multicentre cohort studyPatients admitted to intensive care unitsAssociated with poor outcomesAssociated with similar effectsAssociated with lower survivalCancer-related surgeryMulticentre cohort studyRetrospective cohort studyLong-term outcomesIntensive care unitAssociated with mortalityPoor outcomeFollow-upICU admissionPrimary outcomeCare unitSurgeryPatientsSurvival informationCancerFrailtyICU
2023
Frailty and long-term survival among patients in Australian intensive care units with metastatic cancer (FRAIL-CANCER study): a retrospective registry-based cohort study
Alamgeer M, Ling R, Ueno R, Sundararajan K, Sundar R, Pilcher D, Subramaniam A. Frailty and long-term survival among patients in Australian intensive care units with metastatic cancer (FRAIL-CANCER study): a retrospective registry-based cohort study. The Lancet Healthy Longevity 2023, 4: e675-e684. PMID: 38042160, DOI: 10.1016/s2666-7568(23)00209-x.Peer-Reviewed Original ResearchConceptsIntensive care unitRegistry-based cohort studyLong-term survivalAustralian intensive care unitsRetrospective registry-based cohort studyMetastatic cancerAssociated with shorter survival timeEffect of frailtyClinical Frailty ScaleShorter survival timeSurvival timeCohort studyAssociated with poor long-term survivalCare unitPoor long-term survivalIntensive care unit admissionTime-limited trialsCandidacy of patientsCox proportional hazards regression modelsRobust sandwich variance estimatorProportion of patientsProportional hazards regression modelsHazards regression modelsImpact of frailtyOverall survivalCOVID-19 Severity and Waning Immunity After up to 4 mRNA Vaccine Doses in 73 608 Patients With Cancer and 621 475 Matched Controls in Singapore
Tan W, Tan J, Lim J, Tan R, Bin Lee A, Leong F, Lee S, Chai L, Tan T, Bin Abdul Malek M, Ong B, Lye D, Chiew C, Chng W, Lim S, Bharwani L, Tan I, Sundar R, Tan K. COVID-19 Severity and Waning Immunity After up to 4 mRNA Vaccine Doses in 73 608 Patients With Cancer and 621 475 Matched Controls in Singapore. JAMA Oncology 2023, 9: 1221-1229. PMID: 37440245, PMCID: PMC10346511, DOI: 10.1001/jamaoncol.2023.2271.Peer-Reviewed Original ResearchMeSH KeywordsCohort StudiesCOVID-19COVID-19 VaccinesFemaleHumansMaleNeoplasmsProspective StudiesSARS-CoV-2SingaporeConceptsIncidence rate ratiosCancer survivorsVaccine doseSevere diseaseCohort studyTreated patientsProspective multicenter observational cohort studyCompeting-risk regression analysisMulticenter observational cohort studyMatched controlsVaccine efficacyVaccine effectivenessRisk of poor outcomesWaning of vaccine effectivenessSevere COVID-19 disease outcomesMRNA vaccine doseRisk of deathObservational cohort studyMRNA-based vaccinesSocioeconomic statusSARS-CoV-2 DeltaRate ratiosCOVID-19 hospitalizationIncidence rateOmicron wave
2021
“3G” Trial: An RNA Editing Signature to Guide Gastric Cancer ChemotherapyRNA Editing Signature in Gastric Cancer
An O, Song Y, Ke X, So J, Sundar R, Yang H, Rha S, Lee M, Tay S, Ong X, Tan A, Ng M, Tantoso E, Chen L, Tan P, Yong W, Consortium S. “3G” Trial: An RNA Editing Signature to Guide Gastric Cancer ChemotherapyRNA Editing Signature in Gastric Cancer. Cancer Research 2021, 81: 2788-2798. PMID: 33558338, DOI: 10.1158/0008-5472.can-20-2872.Peer-Reviewed Original ResearchConceptsAdvanced gastric cancerRNA editingRNA editing signaturesEditing levelsGastric cancerRNA editing eventsHigher editing levelsAdenosine-to-inosineRNA editing analysisGastric cancer cell linesPredictive biomarkersStratify patientsLevels of editingGene expression profilesPredicting response to chemotherapyEditing sitesEditing eventsMolecular subtypes of gastric cancerCancer cell linesPlatinum-based chemotherapyMetastatic gastric cancerSubtypes of gastric cancerCancer Genome AtlasFirst-line therapyResponse to chemotherapy
2019
Are we mis-estimating chemotherapy-induced peripheral neuropathy? Analysis of assessment methodologies from a prospective, multinational, longitudinal cohort study of patients receiving neurotoxic chemotherapy
Molassiotis A, Cheng H, Lopez V, Au J, Chan A, Bandla A, Leung K, Li Y, Wong K, Suen L, Chan C, Yorke J, Farrell C, Sundar R. Are we mis-estimating chemotherapy-induced peripheral neuropathy? Analysis of assessment methodologies from a prospective, multinational, longitudinal cohort study of patients receiving neurotoxic chemotherapy. BMC Cancer 2019, 19: 132. PMID: 30736741, PMCID: PMC6368751, DOI: 10.1186/s12885-019-5302-4.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsCohort StudiesDose-Response Relationship, DrugFemaleHumansLongitudinal StudiesMaleMiddle AgedNeoplasm StagingNeoplasmsPatient Reported Outcome MeasuresPeripheral Nervous System DiseasesPrevalenceProspective StudiesQuality of LifeSeverity of Illness IndexConceptsChemotherapy-induced peripheral neuropathyPeripheral neuropathyNeurotoxic chemotherapyPrevalence of sensory neuropathyCohort study of patientsCumulative chemotherapy dosePlatinum-based chemotherapyLongitudinal cohort study of patientsMeasuring chemotherapy-induced peripheral neuropathyStudy of patientsNerve conduction studiesAssessment of chemotherapy-induced peripheral neuropathyCIPN incidencePatient-reported outcome measuresAssociated with onsetLongitudinal cohort studyChemotherapy doseMotor neurotoxicityClinician-based scalesMotor neuropathySensory neuropathyChemotherapyNeuropathyNatural historyPatients
2018
Clinical outcomes of adolescents and young adults with advanced solid tumours participating in phase I trials
Sundar R, McVeigh T, Dolling D, Petruckevitch A, Diamantis N, Ang J, Chenard-Poiriér M, Collins D, Lim J, Ameratunga M, Khan K, Kaye S, Banerji U, Lopez J, George A, de Bono J, van der Graaf W. Clinical outcomes of adolescents and young adults with advanced solid tumours participating in phase I trials. European Journal Of Cancer 2018, 101: 55-61. PMID: 30025230, DOI: 10.1016/j.ejca.2018.06.003.Peer-Reviewed Original ResearchConceptsPhase I trialPhase I clinical trialAdvanced solid tumorsI trialOverall survivalAYA patientsSolid tumorsCancer syndromesCohort of AYA patientsMolecular characterisation of tumoursOutcomes of AYA patientsClinical benefit rateMedian overall survivalOutcomes of AYAsSomatic genetic aberrationsSignificant family historyRoyal Marsden HospitalHereditary cancer syndromesCharacterisation of tumoursTherapeutic treatment optionsClinical outcomes of adolescentsClinical trial dataDrug Development UnitYoung adultsGenetic aberrationsTranscriptional analysis of immune genes in Epstein–Barr virus-associated gastric cancer and association with clinical outcomes
Sundar R, Qamra A, Tan A, Zhang S, Ng C, Teh B, Lee J, Kim K, Tan P. Transcriptional analysis of immune genes in Epstein–Barr virus-associated gastric cancer and association with clinical outcomes. Gastric Cancer 2018, 21: 1064-1070. PMID: 29915957, DOI: 10.1007/s10120-018-0851-9.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedB7-H1 AntigenBiomarkers, TumorCD8 AntigensCohort StudiesDisease-Free SurvivalEpstein-Barr Virus InfectionsFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHerpesvirus 4, HumanHumansImmunohistochemistryLymphocytes, Tumor-InfiltratingMaleMiddle AgedPerforinProgrammed Cell Death 1 ReceptorStomach NeoplasmsConceptsPD-L1PD-L1highPD-L1lowEBVaGC samplesImmune-related genesAssociated with worse disease-free survivalGastric cancerPD-L1 immunohistochemistry expressionPD-L1 transcript expressionExpression of PD-L1Levels of PD-L1Epstein-Barr virus-associated gastric cancerTumour-infiltrating lymphocyte patternPD-L1 expressionPD-L1 immunohistochemistryPrimary tumor resectionDisease-free survivalAssociated with higher expressionCases of EBVaGCGastric cancer patientsEBV-negative samplesSamsung Medical CentreAsian Cancer Research GroupImmune genesCancer Research Group