2022
KMSubtraction: reconstruction of unreported subgroup survival data utilizing published Kaplan-Meier survival curves
Zhao J, Syn N, Tan B, Yap D, Teo C, Chan Y, Sundar R. KMSubtraction: reconstruction of unreported subgroup survival data utilizing published Kaplan-Meier survival curves. BMC Medical Research Methodology 2022, 22: 93. PMID: 35369867, PMCID: PMC8978435, DOI: 10.1186/s12874-022-01567-z.Peer-Reviewed Original ResearchMeSH KeywordsHumansKaplan-Meier EstimateMonte Carlo MethodProportional Hazards ModelsPublicationsReproducibility of ResultsConceptsMonte Carlo simulationsLimits of errorSubgroup survival dataCarlo simulationsSurvival dataKaplan-MeierKaplan-Meier survival curvesExtensive Monte Carlo simulationsOriginal survival dataFollow-up timeCox proportional hazards modelsSubgroups of clinical interestPublished Kaplan-Meier survival curvesMarginal Cox proportional hazards modelsProportional hazards modelMatched patientsSecondary data analysisSystematic errorsSurvival curvesProportion of missing dataHazards modelClinical interestPatientsPrimary manuscriptsKM plots
2020
Radiological evaluation of malignant pleural mesothelioma - defining distant metastatic disease
Collins D, Sundar R, Constantinidou A, Dolling D, Yap T, Popat S, O’Brien M, Banerji U, de Bono J, Lopez J, Tunariu N, Minchom A. Radiological evaluation of malignant pleural mesothelioma - defining distant metastatic disease. BMC Cancer 2020, 20: 1210. PMID: 33298007, PMCID: PMC7724793, DOI: 10.1186/s12885-020-07662-y.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsBone NeoplasmsBrain NeoplasmsClinical Trials, Phase I as TopicCombined Modality TherapyDiagnostic ImagingFemaleHumansKaplan-Meier EstimateLiver NeoplasmsLung NeoplasmsMaleMesothelioma, MalignantMiddle AgedPeritoneal NeoplasmsPleural NeoplasmsProportional Hazards ModelsRetrospective StudiesConceptsDistant metastasisPeritoneal metastasisMPM patientsTreatment paradigmCohort of MPM patientsFrequency of distant metastasesIncidence of bone metastasesPresence of distant metastasesPattern of metastatic spreadDistant metastatic diseaseDistant metastatic disseminationBackgroundMalignant pleural mesotheliomaPresence of symptomsIncidence of boneMetastatic diseaseMetastatic sitesBone metastasesOverall survivalMetastatic spreadContralateral lungPrognostic implicationsMetastatic disseminationRadiological investigationsRetrospective studyPleural mesothelioma
2019
DNA epigenetic signature predictive of benefit from neoadjuvant chemotherapy in oesophageal adenocarcinoma: results from the MRC OE02 trial
Sundar R, Ng A, Zouridis H, Padmanabhan N, Sheng T, Zhang S, Lee M, Ooi W, Qamra A, Inam I, Hewitt L, So J, Koh V, Nankivell M, Langley R, Allum W, Cunningham D, Rozen S, Yong W, Grabsch H, Tan P. DNA epigenetic signature predictive of benefit from neoadjuvant chemotherapy in oesophageal adenocarcinoma: results from the MRC OE02 trial. European Journal Of Cancer 2019, 123: 48-57. PMID: 31655359, DOI: 10.1016/j.ejca.2019.09.016.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsCisplatinDNA MethylationEpigenesis, GeneticEsophageal NeoplasmsFemaleFluorouracilHumansMaleMiddle AgedNeoadjuvant TherapyNeoplasm GradingNeoplasm StagingPrognosisProportional Hazards ModelsRandomized Controlled Trials as TopicSurvival RateConceptsCS armNeoadjuvant chemotherapyOverall survivalOesophageal adenocarcinomaDNA methylation signaturesHistological subtypes of oesophageal cancerOesophageal cancerIndependent cohortPredictive of chemotherapy benefitSubtypes of oesophageal cancerIndependent cohort of patientsS armCox proportional hazards analysisResectable oesophageal cancerCohort of patientsPredictive of benefitMethylation signaturesDNA methylationPredictive of survivalProportional hazards analysisChemotherapy benefitHistological subtypesMetagene signatureRandomised patientsDNA methylation status
2018
A study of 1088 consecutive cases of electrolyte abnormalities in oncology phase I trials
Garces A, Ang J, Ameratunga M, Chénard-Poirier M, Dolling D, Diamantis N, Seeramreddi S, Sundar R, de Bono J, Lopez J, Banerji U. A study of 1088 consecutive cases of electrolyte abnormalities in oncology phase I trials. European Journal Of Cancer 2018, 104: 32-38. PMID: 30316017, PMCID: PMC6259582, DOI: 10.1016/j.ejca.2018.08.019.Peer-Reviewed Original ResearchConceptsPhase I clinical trialElectrolyte abnormalitiesBaseline hypoalbuminaemiaOverall survivalClinical significanceDose-limiting toxicity windowPrognostic factors of OSOncology phase I trialsInferior median OSFactors of OSPhase I patientsPhase I trialRetrospective chart reviewSerum albumin levelAssociated with hypomagnesaemiaRoyal Marsden HospitalCox regression analysisPhase I populationDrug Development UnitMedian OSPrognostic factorsPrognostic significanceI patientsI trialAlbumin levels