Alterations in Immune Cell Composition during First-Line Therapy with Mosunetuzumab for Follicular or Marginal Zone Lymphoma
Olszewski A, Ollila T, Pelcovits A, Chorzalska A, Morgan J, McMahon J, Donnelly S, Huntington S, Matasar M, Reagan J, Milrod C, Dubielecka P. Alterations in Immune Cell Composition during First-Line Therapy with Mosunetuzumab for Follicular or Marginal Zone Lymphoma. Blood 2023, 142: 1651. DOI: 10.1182/blood-2023-181418.Peer-Reviewed Original ResearchEnd of therapyCytokine release syndromeMarginal zone lymphomaT cellsComplete responsePD1 expressionNK cellsB cellsEffector memory T cellsCheckpoint inhibitor combinationsExpression of LAG3Immune cell changesB-cell depletionFirst-line therapyExpansion of TregsT cell exhaustionMemory T cellsPrior chemotherapy exposureImmune cell subsetsImmune cell compositionPeripheral blood samplesMulticolor flow cytometrySignificant increaseTreatment-induced changesExhausted phenotypeA phase 2 trial of mosunetuzumab with lenalidomide augmentation as first-line therapy for follicular (FL) and marginal zone lymphoma (MZL).
Olszewski A, Huntington S, Ollila T, Pelcovits A, McMahon J, Yakirevich I, Sturtevant A, Chorzalska A, Morgan J, Dubielecka P. A phase 2 trial of mosunetuzumab with lenalidomide augmentation as first-line therapy for follicular (FL) and marginal zone lymphoma (MZL). Journal Of Clinical Oncology 2023, 41: tps7588-tps7588. DOI: 10.1200/jco.2023.41.16_suppl.tps7588.Peer-Reviewed Original ResearchMarginal zone lymphomaCytokine release syndromeFirst-line therapyCR rateT cell-engaging bispecific antibodiesFirst-line systemic therapyCytotoxic T cell responsesLow-dose lenalidomideComplete response rateFirst-line treatmentLines of therapyPhase 2 trialT-cell depletionT cell immunityT cell responsesHost immune environmentRate of progressionRates of toxicityNovel therapeutic approachesHigh-burden diseasesImmunosuppressive modalitiesRefractory FLRelease syndromeStable diseaseStudy therapy