2024
First-in-human phase I trial of the oral first-in-class ubiquitin specific peptidase 1 (USP1) inhibitor KSQ-4279 (KSQi), given as single agent (SA) and in combination with olaparib (OLA) or carboplatin (CARBO) in patients (pts) with advanced solid tumors, enriched for deleterious homologous recombination repair (HRR) mutations.
Yap T, Lakhani N, Patnaik A, Lee E, Gutierrez M, Moore K, Carneiro B, Hays J, Huang M, LoRusso P, Wylie A, Cadzow L, Goulet M, Tobin E, Krieter O, Schmid D, Blake S, Dieterich M, Jamois C, Harris P. First-in-human phase I trial of the oral first-in-class ubiquitin specific peptidase 1 (USP1) inhibitor KSQ-4279 (KSQi), given as single agent (SA) and in combination with olaparib (OLA) or carboplatin (CARBO) in patients (pts) with advanced solid tumors, enriched for deleterious homologous recombination repair (HRR) mutations. Journal Of Clinical Oncology 2024, 42: 3005-3005. DOI: 10.1200/jco.2024.42.16_suppl.3005.Peer-Reviewed Original ResearchUbiquitin specific peptidase 1Treatment-emergent adverse eventsHomologous recombination repair mutationsSingle agentPARP inhibitorsHomologous recombination repairFirst-in-human phase I trialPreliminary anti-tumor activityPaired tumor biopsiesTNBC PDX modelsDisease control ratePhase I trialAUC 4Olaparib concentrationsRECIST PRDose escalationExpansion cohortCancer ptsDose proportionalityTumor biopsiesI trialMaculopapular rashPDX modelsDiscontinued treatmentDNA damage response pathway
2023
Platinum Sensitivity in IDH1/2 Mutated Intrahepatic Cholangiocarcinoma: Not All “BRCAness” Is Created Equal
Doroshow D, Wei W, Mehrotra M, Sia D, Eder J, Bindra R, Houldsworth J, LoRusso P, Walther Z. Platinum Sensitivity in IDH1/2 Mutated Intrahepatic Cholangiocarcinoma: Not All “BRCAness” Is Created Equal. Cancer Investigation 2023, 41: 646-655. PMID: 37505929, DOI: 10.1080/07357907.2023.2242957.Peer-Reviewed Original ResearchConceptsClinical benefit rateIntrahepatic cholangiocarcinomaPlatinum sensitivityUnresectable intrahepatic cholangiocarcinomaObjective response rateMulticenter retrospective studyHomologous recombination repairDefective homologous recombination (HR) repairPrimary endpointPlatinum chemotherapyRetrospective studyPreclinical dataBenefit rateWildtype tumorsResponse rateMT tumorsWT diseasePatientsGene defectsCholangiocarcinomaTumors