Featured Publications
Effectiveness of Immune Checkpoint Inhibitors in Patients With Advanced Esophageal Squamous Cell Carcinoma
Yap D, Leone A, Wong N, Zhao J, Tey J, Sundar R, Pietrantonio F. Effectiveness of Immune Checkpoint Inhibitors in Patients With Advanced Esophageal Squamous Cell Carcinoma. JAMA Oncology 2023, 9: 215-224. PMID: 36480211, PMCID: PMC9857522, DOI: 10.1001/jamaoncol.2022.5816.Peer-Reviewed Original ResearchConceptsAdvanced esophageal squamous cell carcinomaImmune checkpoint inhibitorsEsophageal squamous cell carcinomaSquamous cell carcinomaPD-L1 expressionKaplan-Meier curvesLow PD-L1 expressionFirst-line trialsProgression-free survivalDuration of responsePD-L1Overall survivalCell carcinomaRandomized clinical trialsPooled analysisClinical trialsCheckpoint inhibitorsTumor proportionEffect of immune checkpoint inhibitorsLow programmed death ligand 1Benefit of immune checkpoint inhibitorsHazard ratioSurvival dataFirst-line settingICI-based regimensIntegration of Genomic Biology Into Therapeutic Strategies of Gastric Cancer Peritoneal Metastasis
Gwee Y, Chia D, So J, Ceelen W, Yong W, Tan P, Ong C, Sundar R. Integration of Genomic Biology Into Therapeutic Strategies of Gastric Cancer Peritoneal Metastasis. Journal Of Clinical Oncology 2022, 40: 2830. PMID: 35649219, PMCID: PMC9390822, DOI: 10.1200/jco.21.02745.Peer-Reviewed Educational MaterialsConceptsPeritoneal metastasisSystemic therapyClinical trialsGastric cancerTherapeutic strategiesEmergence of novel therapiesSynchronous peritoneal metastasesKnowledge of cancer biologyTraditional systemic therapiesCurrent standard-of-careSite of metastasisGastric cancer peritoneal metastasisAdvanced gastric cancerSurrounding tumor microenvironmentStandard-of-careInternational clinical guidelinesLocoregional therapeutic strategiesDiagnostic laparoscopyDismal prognosisTumor microenvironmentClinical entityNovel therapiesSurgical techniqueDisease stageMolecular profilingSpatial profiling of gastric cancer patient-matched primary and locoregional metastases reveals principles of tumour dissemination
Sundar R, Liu D, Hutchins G, Slaney H, Silva A, Oosting J, Hayden J, Hewitt L, Ng C, Mangalvedhekar A, Ng S, Tan I, Tan P, Grabsch H. Spatial profiling of gastric cancer patient-matched primary and locoregional metastases reveals principles of tumour dissemination. Gut 2020, 70: 1823-1832. PMID: 33229445, PMCID: PMC8458060, DOI: 10.1136/gutjnl-2020-320805.Peer-Reviewed Original ResearchConceptsPrimary gastric cancerLymph node metastasisPrimary tumorGastric cancerIntratumour heterogeneityNode metastasisMatched lymph node metastasesRegional lymph node metastasisMultiplex ligation-dependent probe amplificationLigation-dependent probe amplificationPatient-matchedProgressive genomic changesDNA copy number profilesEndoscopic mucosal biopsiesCopy number profilesTherapeutically relevant genesLocoregional metastasesTumor disseminationResected samplesTargeted therapyHistomorphological phenotypesProbe amplificationBiomarker testingClinical trialsNanoString results
2024
Immune checkpoint inhibitors in advanced gastroesophageal adenocarcinoma: a series of patient-level meta-analyses in different programmed death-ligand 1 subgroups
Leone A, Mai A, Fong K, Yap D, Kato K, Smyth E, Moehler M, Seong J, Sundar R, Zhao J, Pietrantonio F. Immune checkpoint inhibitors in advanced gastroesophageal adenocarcinoma: a series of patient-level meta-analyses in different programmed death-ligand 1 subgroups. ESMO Open 2024, 9: 103962. PMID: 39426081, PMCID: PMC11533044, DOI: 10.1016/j.esmoop.2024.103962.Peer-Reviewed Original ResearchImmune checkpoint inhibitorsCombined positive scoreBenefit of immune checkpoint inhibitorsCheckpoint inhibitorsOS benefitOverall survivalAnti-programmed cell death protein 1Kaplan-Meier (KM) plotsEfficacy of immune checkpoint inhibitorsFirst-line immune checkpoint inhibitorsPD-L1 combined positive scoreProgrammed death ligand 1 subgroupsCell death protein 1Programmed death-ligand 1Patient-level meta-analysesPatient-level meta-analysisDeath-ligand 1Advanced gastroesophageal adenocarcinomaRandomized clinical trialsCheckMate-649KEYNOTE-062Gastroesophageal adenocarcinomaTherapeutic optionsClinical trialsKM plots
2023
Effects of prior therapies on outcomes with trifluridine/tipiracil in patients with metastatic gastric/gastroesophageal junction cancer in a randomized phase III trial (TAGS)
Shitara K, George B, Taieb J, Sundar R, Fakih M, Makris L, Benhadji K, Ghidini M. Effects of prior therapies on outcomes with trifluridine/tipiracil in patients with metastatic gastric/gastroesophageal junction cancer in a randomized phase III trial (TAGS). Journal Of Cancer Research And Clinical Oncology 2023, 149: 9361-9374. PMID: 37213030, PMCID: PMC10374776, DOI: 10.1007/s00432-023-04813-z.Peer-Reviewed Original ResearchConceptsProgression-free survivalGastric/gastroesophageal junction cancerJunction cancerSurvival benefitSafety profileEastern Cooperative Oncology Group performance statusRandomized phase III trialAssociated with survival benefitMedian overall survivalPhase III trialsPost hoc exploratory analysisLater-lineTrifluridine/tipiracil treatmentHematologic toxicityPrior therapyMedian overallOverall survivalIII trialsPlacebo armPerformance statusResultsBaseline characteristicsMedian timeRamucirumabTherapy patternsClinical trials
2022
Selective Internal Radiation Therapy with Yttrium-90 Resin Microspheres Followed by Gemcitabine plus Cisplatin for Unresectable Intrahepatic Cholangiocarcinoma: A Phase 2 Single-Arm Multicenter Clinical Trial
Chan S, Chotipanich C, Choo S, Kwang S, Mo F, Worakitsitisatorn A, Tai D, Sundar R, Ng D, Loke K, Li L, Ng K, Peng Y, Yu S. Selective Internal Radiation Therapy with Yttrium-90 Resin Microspheres Followed by Gemcitabine plus Cisplatin for Unresectable Intrahepatic Cholangiocarcinoma: A Phase 2 Single-Arm Multicenter Clinical Trial. Liver Cancer 2022, 11: 451-459. PMID: 36158588, PMCID: PMC9485918, DOI: 10.1159/000525489.Peer-Reviewed Original ResearchUnresectable intrahepatic cholangiocarcinomaProgression-free survivalSelective internal radiation therapyInternal radiation therapyIntrahepatic cholangiocarcinomaMedian OSRadiation therapyOverall survivalClinical trialsMedian cycle of chemotherapyMedian progression-free survivalResin yttrium-90 microspheresYttrium-90 resin microspheresTreatment-related adverse eventsIntent-to-treat populationResponse rateDisease control rateResponse Evaluation CriteriaYttrium-90 microspheresCycles of chemotherapyWithdrawal of consentMulticenter clinical trialInvestigator-initiated clinical trialStandard gemcitabineStandard chemotherapyPRECISE CURATE.AI: A prospective feasibility trial to dynamically modulate personalized chemotherapy dose with artificial intelligence.
Blasiak A, Truong A, Jeit L, Kumar K, Tan S, Teo C, Tan B, Tadeo X, Tan L, Chee C, Yong W, Ho D, Sundar R. PRECISE CURATE.AI: A prospective feasibility trial to dynamically modulate personalized chemotherapy dose with artificial intelligence. Journal Of Clinical Oncology 2022, 40: 1574-1574. DOI: 10.1200/jco.2022.40.16_suppl.1574.Peer-Reviewed Original ResearchStandard-of-careSingle-agent capecitabineCapecitabine doseProspective feasibility trialClinical trialsChemotherapy doseSolid tumorsImprove patient response ratesDosing decisionsTreatment of solid tumorsIndividualize chemotherapy dosingAdvanced solid tumorsProspective clinical trialPatient response rateRandomized clinical trialsPrescribed dosePatient-specific variationsOpen-labelDosing recommendationsTumor markersOrgan dysfunctionPatient comorbiditiesDose selectionOncological indicationsCapecitabine
2021
P-19 A multicentred phase II clinical trial on yttrium 90-resin microspheres followed by gemcitabine-cisplatin for treatment of locally advanced intra-hepatic cholangiocarcinoma
Chan S, Chotipanich C, Choo S, Kwang S, Worakitsitisatorn A, Tai D, Yong W, Sundar R, Li L, Yu S, Sungkasubun P. P-19 A multicentred phase II clinical trial on yttrium 90-resin microspheres followed by gemcitabine-cisplatin for treatment of locally advanced intra-hepatic cholangiocarcinoma. Annals Of Oncology 2021, 32: s102. DOI: 10.1016/j.annonc.2021.05.074.Peer-Reviewed Original Research
2020
A Limb Hypothermia Wearable for Chemotherapy-Induced Peripheral Neuropathy: A Mixed-Methods Approach in Medical Product Development
Binder J, Unver E, Clayton J, Burke P, Paxman R, Sundar R, Bandla A. A Limb Hypothermia Wearable for Chemotherapy-Induced Peripheral Neuropathy: A Mixed-Methods Approach in Medical Product Development. Frontiers In Digital Health 2020, 2: 573234. PMID: 34713046, PMCID: PMC8521967, DOI: 10.3389/fdgth.2020.573234.Peer-Reviewed Original ResearchChemotherapy-induced peripheral neuropathyPeripheral neuropathyDose-limiting side effectTaxane-based chemotherapyLarge-scale efficacy trialsChemotherapy-induced alopeciaPrevention of chemotherapy-induced alopeciaHigh-risk natureMixed-methods approachIntegration of evidence-basedCIPN severityClinical trialsDevice designDesign inputsEfficacy trialsChemotherapyScalp coolingMultidisciplinary approachEvidence-based approachNeuropathyExpert focus groupEarly dataMedical device designAdditive manufacturingSafety, pharmacokinetics and tissue penetration of PIPAC paclitaxel in a swine model
Tan H, Kim G, Charles C, Li R, Jang C, Shabbir A, Chue K, Tai C, Sundar R, Goh B, Bonney G, Looi W, Cheow E, So J, Wang L, Yong W. Safety, pharmacokinetics and tissue penetration of PIPAC paclitaxel in a swine model. European Journal Of Surgical Oncology 2020, 47: 1124-1131. PMID: 32800400, DOI: 10.1016/j.ejso.2020.06.031.Peer-Reviewed Original ResearchConceptsSolvent-based paclitaxelAdverse eventsGrade 2 hypersensitivity reactionSystemic exposure to paclitaxelAbsolute neutrophil countExposure to paclitaxelPhase I studyShort-term safetySignificant adverse eventsTissue drug concentrationsConcentrations of paclitaxelPotential adverse eventsYorkshire x Landrace pigsPeritoneal carcinomatosisPeritoneal biopsiesNeutrophil countPeritoneal surfaceToxicity profileBlood countIV infusionPeritoneal cavityPharmacokinetic analysisClinical trialsHigh dosesPharmacokinetic comparisonLimb Hypothermia for the Prevention of Chemotherapy-Induced Peripheral Neuropathy – Modality for Optimal Cooling
Bandla A, Santhanakrishnan P, Magarajah G, Vaidya G, Subramanian A, Wei H, Wilder-Smith E, Chin L, Thakor N, Sundar R. Limb Hypothermia for the Prevention of Chemotherapy-Induced Peripheral Neuropathy – Modality for Optimal Cooling. Annual International Conference Of The IEEE Engineering In Medicine And Biology Society (EMBC) 2020, 00: 5061-5064. PMID: 33019124, DOI: 10.1109/embc44109.2020.9175432.Peer-Reviewed Original ResearchConceptsChemotherapy-induced peripheral neuropathyPrevent chemotherapy-induced peripheral neuropathyFrozen glovesLimb hypothermiaHealthy subjectsPrevention of chemotherapy-induced peripheral neuropathyDose-limiting adverse effectsReduce chemotherapy-induced peripheral neuropathyNeurotoxic chemotherapeutic agentsNo adverse eventsTransient erythemaSafety profileAdverse eventsChemotherapeutic agentsPeripheral neuropathyCancer patientsClinical trialsOrthopaedic indicationsClinical utilityHypothermiaSports injuriesCooling modalitiesModalitiesSkin temperatureCryocompression
2018
Biomarkers for Homologous Recombination Deficiency in Cancer
Hoppe M, Sundar R, Tan D, Jeyasekharan A. Biomarkers for Homologous Recombination Deficiency in Cancer. Journal Of The National Cancer Institute 2018, 110: 704-713. PMID: 29788099, DOI: 10.1093/jnci/djy085.Peer-Reviewed Educational MaterialsConceptsPoly-ADP-ribose polymeraseArray-based comparative genomic hybridizationSingle nucleotide polymorphismsHomologous recombination deficiencyPoly-ADP ribose polymerase inhibitorsComparative genomic hybridizationHomologous recombination genesNext-generation sequencingDNA repair pathwaysRecombination deficiencyClinical trialsGenomic hybridizationGermline BRCA1/2 mutation statusClinical development of PARP inhibitorsDefective DNA repairGenomic scarsResponse to platinum-based therapyHomologous recombinationDevelopment of PARP inhibitorsRecombinant genesNucleotide polymorphismsPlatinum-based therapyRibose polymeraseBRCA1/2 mutation statusDNA repair
2017
Targeting ATR in cancer medicine
Sundar R, Brown J, Russo A, Yap T. Targeting ATR in cancer medicine. Current Problems In Cancer 2017, 41: 302-315. PMID: 28662958, DOI: 10.1016/j.currproblcancer.2017.05.002.Peer-Reviewed Educational MaterialsPoly(ADP-ribose) polymerase inhibitorsATR inhibitorsDNA damage responsePolymerase inhibitorsEarly-phase clinical trialsAtaxia telangiectasiaImmune checkpoint inhibitorsBiomarkers of responseCheckpoint inhibitorsDNA damagePreclinical dataCombinatorial regimensPatient selectionReplication-associated DNA damageAntitumor strategyCell cycle checkpoint signalingClinical developmentRepair of replication-associated DNA damagePreclinical biologyTargeting ATRAntitumor therapyATR inhibitionSingle agentCell cycle checkpointsClinical trials