Raghav Sundar, MD, PhD
Associate Professor (Medical Oncology), Internal MedicineCards
About
Research
Publications
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, 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 plotsMultimodality Treatment for Locally Advanced Gastric Adenocarcinoma
Srikumar T, Sundar R. Multimodality Treatment for Locally Advanced Gastric Adenocarcinoma. Surgical Clinics Of North America 2024 DOI: 10.1016/j.suc.2024.06.007.Peer-Reviewed Original ResearchPhase I PIANO trial—PIPAC-oxaliplatin and systemic nivolumab combination for gastric cancer peritoneal metastases: clinical and translational outcomes
Sundar R, Chia D, Zhao J, Lee A, Kim G, Tan H, Pang A, Shabbir A, Willaert W, Ma H, Huang K, Hagihara T, Tan A, Ong C, Wong J, Seo C, Walsh R, Chan G, Cheo S, Soh C, Callebout E, Geboes K, Ng M, Lum J, Leow W, Selvarajan S, Hoorens A, Ang W, Pang H, Tan P, Yong W, Chia C, Ceelen W, So J. Phase I PIANO trial—PIPAC-oxaliplatin and systemic nivolumab combination for gastric cancer peritoneal metastases: clinical and translational outcomes. ESMO Open 2024, 9: 103681. PMID: 39288528, PMCID: PMC11421236, DOI: 10.1016/j.esmoop.2024.103681.Peer-Reviewed Original ResearchConceptsGastric cancer peritoneal metastasisPeritoneal cancer indexNivolumab combinationPeritoneal metastasisPeritoneal tumorsNaive CD8+ T cellsCD8+ central memoryEnhanced T cell infiltrationTreatment-related adverse eventsCD8+ T cellsGrade 4 vomitingRegression grade 1First-in-human trialImmune checkpoint inhibitionMemory CD4+T cell infiltrationImmunogenic cell deathSystemic immunotherapyCheckpoint inhibitionSystemic therapyCancer indexCD4+Intraperitoneal treatmentT cellsAdverse eventsEORTC stomach cancer PD-L1 biomarker European initiative: the ASPIRE study protocol
Petrillo A, Oudijk L, Sundar R, Daumer C, Casas J, D’Haese D, Mauer M, van Grieken N, Smyth E, Moehler M. EORTC stomach cancer PD-L1 biomarker European initiative: the ASPIRE study protocol. ESMO Gastrointestinal Oncology 2024, 5: 100071. DOI: 10.1016/j.esmogo.2024.100071.Peer-Reviewed Original Research229TiP A phase II trial of a neural network-based treatment decision support tool in patients (pts) with refractory solid organ malignancies
Walsh R, Jayagopal A, Tan T, Pitt J, Sundar R, Lee S, Goh B, Rajan V, Tan D, Jeyasekharan A. 229TiP A phase II trial of a neural network-based treatment decision support tool in patients (pts) with refractory solid organ malignancies. Annals Of Oncology 2024, 35: s307-s308. DOI: 10.1016/j.annonc.2024.08.2233.Peer-Reviewed Original Research1418P Tumor microenvironment B-cell abundance and survival in resectable gastric cancer: A translational analysis from the CLASSIC trial
Sachdeva M, Tay R, KIM Y, Kim H, Cheong J, Grabsch H, Sundar R. 1418P Tumor microenvironment B-cell abundance and survival in resectable gastric cancer: A translational analysis from the CLASSIC trial. Annals Of Oncology 2024, 35: s885. DOI: 10.1016/j.annonc.2024.08.1484.Peer-Reviewed Original ResearchPersonalized dose selection for the first Waldenström macroglobulinemia patient on the PRECISE CURATE.AI trial
Blasiak A, Tan L, Chong L, Tadeo X, Truong A, Senthil Kumar K, Sapanel Y, Poon M, Sundar R, de Mel S, Ho D. Personalized dose selection for the first Waldenström macroglobulinemia patient on the PRECISE CURATE.AI trial. Npj Digital Medicine 2024, 7: 223. PMID: 39191913, PMCID: PMC11350179, DOI: 10.1038/s41746-024-01195-5.Peer-Reviewed Original ResearchArtificial intelligenceClinical decision support systemsDecision support systemIntegration of AIAI-enabled toolsWaldenstrom's macroglobulinemiaBruton tyrosine kinase inhibitor ibrutinibRare diseaseEnhance usersWaldenstrom's macroglobulinemia patientsKinase inhibitor ibrutinibSupport systemSecondary outcome measuresDiagnosed WMDigital health solutionsWM patientsInhibitor ibrutinibMacroglobulinemia patientsDosing recommendationsUsersManagement of rare diseasesClinical efficacyDevelopment of digital technologiesDose selectionPersonalized therapyReal-World Study of Systemic Treatment after First-Line Atezolizumab plus Bevacizumab for Hepatocellular Carcinoma in Asia-Pacific Countries
Lee C, Yoo C, Hong J, Park J, Kim J, Tai D, Kim H, Korphaisarn K, Tanasanvimon S, Chen S, Kim J, Kim I, Kim M, Choo J, Oh S, Chen C, Bae W, Kim H, Huh S, Yen C, Park S, Lee D, Chan L, Kang B, Kang M, Sundar R, Choi H, Chan S, Chon H, Lee M. Real-World Study of Systemic Treatment after First-Line Atezolizumab plus Bevacizumab for Hepatocellular Carcinoma in Asia-Pacific Countries. Liver Cancer 2024, 1-15. DOI: 10.1159/000540969.Peer-Reviewed Original ResearchFirst-line atezolizumabProgression-free survivalImmune checkpoint inhibitorsTyrosine kinase inhibitorsSecond-line regimensOverall survivalHepatocellular carcinomaSecond-line progression-free survivalSecond-line tyrosine kinase inhibitorsPatients treated with tyrosine kinase inhibitorsAssociated with improved OSImmune checkpoint inhibitor combinationsImmune checkpoint inhibitor useMedian progression-free survivalLow tumor burdenAdvanced hepatocellular carcinomaFirst-line regimenReal-world studyCheckpoint inhibitorsTumor burdenSystemic treatmentAtezolizumabBevacizumabRetrospective studyLenvatinibSpatially resolved niche and tumor microenvironmental alterations in gastric cancer peritoneal metastases
Zhao J, Ong C, Srivastava S, Chia D, Ma H, Huang K, Sheng T, Ramnarayanan K, Ong X, Tay S, Hagihara T, Tan A, Teo M, Tan Q, Ng G, Tan J, Ng M, Gwee Y, Walsh R, Law J, Shabbir A, Kim G, Tay Y, Her Z, Leoncini G, Teh B, Hong J, Tay R, Teo C, Dings M, Bijlsma M, Lum J, Mathur S, Pietrantonio F, Blum S, van Laarhoven H, Klempner S, Yong W, So J, Chen Q, Tan P, Sundar R. Spatially resolved niche and tumor microenvironmental alterations in gastric cancer peritoneal metastases. Gastroenterology 2024 PMID: 39147169, DOI: 10.1053/j.gastro.2024.08.007.Peer-Reviewed Original ResearchPeritoneal metastasisTumor microenvironmentPrimary tumorTranscoelomic metastasisGastric cancerExpression of therapeutic targetsAssociated with poor prognosisGastric cancer peritoneal metastasisAssociated with increased riskHumanized mouse modelTherapeutic targetComprehensive multi-omics analysisTumor microenvironment signaturesTumor microenvironment alterationsDigital spatial profilingInvestigate molecular alterationsWhole-exome sequencingMatched normal tissuesStromal infiltrationComprehensive molecular characterizationLiver metastasesImmune compositionFGFR2b expressionImprove patient outcomesPredictive markerA phase Ib/II study of pacritinib, an interleukin 1 receptor associated kinase 1 (IRAK1) inhibitor, in patients (pts) with solid tumors harboring the 1q21.3 copy number amplification (CNA).
Lim J, Aau M, Yeong J, Goh B, Yong W, Soo R, Wong A, Tan D, Chee C, Sundar R, Jeyasekharan A, Wong C, Chen P, Liu H, Yu Q, Tam W, Lee S. A phase Ib/II study of pacritinib, an interleukin 1 receptor associated kinase 1 (IRAK1) inhibitor, in patients (pts) with solid tumors harboring the 1q21.3 copy number amplification (CNA). Journal Of Clinical Oncology 2024, 42: 43-43. DOI: 10.1200/jco.2024.42.23_suppl.43.Peer-Reviewed Original ResearchProgression-free survivalT cell populationsCD8+ T cell populationsCopy number amplificationInterleukin-1 receptor-associated kinase 1Solid tumorsTumor microenvironmentCell populationsDose levelsCD4+ T cell populationRecommended phase II dosePlasma cell-free DNAPeripheral blood mononuclear cells analysisSystemic immune modulationPhase II doseRefractory solid tumorsPhase Ib/II clinical trialDose-expansion cohortDendritic cell populationsMyeloid cell populationsTumor biopsy samplesImmune cell populationsDecreased tumor growthModulated immune cell populationsPreclinical animal models
Clinical Care
Overview
Clinical Specialties
Medical Oncology
Board Certifications
Internal Medicine
- Certification Organization
- Royal Colleges of Physicians of the United Kingdom
- Original Certification Date
- 2023