DINUTUXIMAB BETA-BASED CHEMO-IMMUNOTHERAPY FOR RELAPSED/REFRACTORY HIGH-RISK NEUROBLASTOMA: PRELIMINARY RESULTS

Autor: Baysal, Birsen, Kızmazoğlu, Deniz, Önal, Ayşe, Çetingöz, Emrullah Rıza, Demiral, Ayşe Nur, Olguner, Mustafa, Çelik, Ahmet, Kamer, Emine Serra, Altun, Zekiye Sultan, Olgun, Hatice Nur, Çeçen, Refik Emre, İnce, Dilek, Güleryüz Uçar, Handan, Aktaş, Safiye, Özer, Erdener, Özdoğan, Özhan
Jazyk: angličtina
Rok vydání: 2022
Popis: Background and AimsRelapsed or refractory (R/R) high-risk (HR) neuroblastoma (NB) has a dismalprognosis. Anti-GD2-mediated chemo-immunotherapy has a considerable anti-tumoractivity in patients with R/R HR-NB. In the present study, we purposed toinvestigate the impacts and adverse effects of the combination of immunotherapywith dinutuximab beta (DB) and chemotherapy in patients with R/R HR-NB.MethodsPatients of over 12 months with documentation of a HR-NB diagnosis wereeligible at relapse or designation of refractory disease status. Inclusioncriteria were as follows: relapsed or refractory, measurable bycontrast-enhanced magnetic resonance imaging (MRI) and/or computed tomography(CT) or metaiodobenzylguanidine (MIBG)/ fluorodeoxyglucose (FDG) positron emissiontomography (PET)/CT evaluable disease and/or demonstrated by bone marrowaspiration and biopsy. Chemotherapy scheme was irinotecan (IV, 50 mg/m² perdose, on Days 0-4) and temozolomide (PO, 100 mg/m² per dose, on days 0-4).Dinutuximab beta was administered intravenously for 10 days through continuousinfusion with 10 mg/m2 per day (on Days 1-10). The patients received 2 to 12successive cycles with duration of 28 days each. Disease assessment wasperformed after cycles 2, 4, and 6 and every 2 to 3 cycles thereafter.ResultsBetween January 2020 and January 2022, nineteen (n=19) patients received atotal of 116 cycles of DB+CT. Objective (complete or partial) responses wereachieved in 12/19 (63%) patients, including complete remission (CR) in 6/19 andpartial response (PR) in 6/19. Stable disease was observed in two patients. Theremaining five patients developed bone/bone marrow and soft tissue progressionafter 2-4 cycles of treatment. The most common side effect was fever, which wasmore common in the first cycles of treatment. Grade ≥3 toxicities wereleukopenia (62%), thrombocytopenia (27%), hypertransaminasemia (25%), fever(14%), and rash/itching (11%), respectively.ConclusionsDB-based chemo-immunotherapy is suitable leading to an encouraging responserate in patients with R/R HR-NB
Databáze: OpenAIRE