2024
CHAPTER-GIST-101: A phase I study of pimitespib combined with imatinib in patients with imatinib-refractory gastrointestinal stromal tumor.
Hirano H, Naito Y, Sundar R, Komatsu Y, Kurokawa Y, Li J, Ozaka M, Iwatsuki M, Chen J, Yen C, Zalcberg J, Roy A, Chen L, Nishida T, Doi T. CHAPTER-GIST-101: A phase I study of pimitespib combined with imatinib in patients with imatinib-refractory gastrointestinal stromal tumor. Journal Of Clinical Oncology 2024, 42: tps97-tps97. DOI: 10.1200/jco.2024.42.23_suppl.tps97.Peer-Reviewed Original ResearchDose-escalation partGastrointestinal stromal tumorsProgression-free survivalDays on/2 daysResistance to IMStromal tumorsImatinib-refractory gastrointestinal stromal tumorsInvestigator-assessed progression-free survivalAdvanced gastrointestinal stromal tumorsKinase-domain mutationsOvercome IM resistanceWeeks on/2 weeksDisease control rateDose-limiting toxicitySecond-line settingDuration of responseMaximum tolerated dosePhase I studyPhase 3 studyPhase 1 studySoft tissue sarcomasHsp90 inhibitorsInhibited tumor growthAnti-tumor activityOverall survival
2023
Phase II study of trifluridine/tipiracil (FTD/TPI) in HER2-negative metastatic breast cancers with or without prior exposure to fluoropyrimidines.
Lim J, Ow S, Wong A, Lee M, Chan G, Low J, Sundar R, Choo J, Tai B, Lee S. Phase II study of trifluridine/tipiracil (FTD/TPI) in HER2-negative metastatic breast cancers with or without prior exposure to fluoropyrimidines. Journal Of Clinical Oncology 2023, 41: 1099-1099. DOI: 10.1200/jco.2023.41.16_suppl.1099.Peer-Reviewed Original ResearchObjective response rateMetastatic breast cancerProgression-free survivalPhase II studyLead-in phaseCohort ADose modificationBreast cancerDetermination of progression-free survivalSingle arm phase II studyHER2-negative metastatic breast cancerConsistent with known toxicitiesMedian progression-free survivalTreatment-related adverse eventsResponse rateDose-confirmation phaseEvents of neutropeniaTreated with FTD/TPIClinical benefit rateDose-limiting toxicityOral drug combinationsTreatment of patientsAnti-tumor activityThymidine phosphorylase inhibitorMetastatic setting
2020
Clinical efficacy and molecular effects of lenvatinib (Len) and letrozole (Let) in hormone receptor-positive (HR+) metastatic breast cancer (MBC).
Lim J, Wong A, Ow S, Ngoi N, Ang Y, Chan G, Eng L, Chong W, Choo J, Lee M, Tan H, Jan Y, Tan K, Sundar R, Tan D, Soo R, Chee C, Yong W, Goh B, Lee S. Clinical efficacy and molecular effects of lenvatinib (Len) and letrozole (Let) in hormone receptor-positive (HR+) metastatic breast cancer (MBC). Journal Of Clinical Oncology 2020, 38: 1019-1019. DOI: 10.1200/jco.2020.38.15_suppl.1019.Peer-Reviewed Original ResearchDisease control rateObjective response rateMetastatic breast cancerEffect of lenvatinibDose escalationEndocrine therapyEfficacy dataRecommended phase 2 doseAll-grade toxicitiesPhase 2 doseDose-escalation phaseHormone receptor-positiveDuration of responsePhase Ib/II studyTumor molecular profilingSerial tumor biopsiesAnti-tumor activityMolecular effectsMedian DoRPrior CTPALB2 mutationsProgression-freeExpansion cohortMBC patientsReceptor-positive
2019
A phase Ib/II trial of lenvatinib (len) and letrozole (let) incorporating pharmacodynamics studies in postmenopausal women with hormone receptor positive (HR+) locally advanced/metastatic breast cancer (LABC/MBC).
Lim J, Wong A, Ow S, Eng L, Sundar R, Chan G, Yadav K, Heong V, Tan D, Soo R, Chee C, Yong W, Goh B, Lee S. A phase Ib/II trial of lenvatinib (len) and letrozole (let) incorporating pharmacodynamics studies in postmenopausal women with hormone receptor positive (HR+) locally advanced/metastatic breast cancer (LABC/MBC). Journal Of Clinical Oncology 2019, 37: 1045-1045. DOI: 10.1200/jco.2019.37.15_suppl.1045.Peer-Reviewed Original ResearchDose-limiting toxicityDisease control ratePalmar-plantar erythrodysesthesiaDose reductionBreast cancerDose levelsMechanisms of endocrine resistanceRecommended phase 2 dosePhase 2 doseAdvanced/metastatic breast cancerHR+ breast cancerPhase Ib trialContinuous daily dosingSerial tumor biopsiesAnti-tumor activityStandard of careDose expansionG3 toxicityPrior CTPostmenopausal womenTumor biopsiesEndocrine resistanceDaily doseEstrogen receptorPreclinical studies
2016
383P RAS/AKT pathway mutations as predictive biomarkers in patients with colorectal cancer treated with the exportin 1 (XPO1) inhibitor selinexor (SEL) – inhibition of nuclear-cytoplasmic translocation of p27 as a mechanism of anti-tumour activity
Heong V, Koe P, Yong W, Soo R, Chee C, Wong A, Thian Y, Sundar R, Ho J, Gopinathan A, Lee S, Goh B, Tan D. 383P RAS/AKT pathway mutations as predictive biomarkers in patients with colorectal cancer treated with the exportin 1 (XPO1) inhibitor selinexor (SEL) – inhibition of nuclear-cytoplasmic translocation of p27 as a mechanism of anti-tumour activity. Annals Of Oncology 2016, 27: vi122. DOI: 10.1093/annonc/mdw368.26.Peer-Reviewed Original Research