The incorporation of dinutuximab beta into a modified N7 induction regimen demonstrates a satisfactory EOI response rate and a manageable safety profile in children with HR-NB. These preliminary results support the feasibility of this chemoimmunotherapy approach and warrant further investigation in larger cohorts to confirm its efficacy in long-term survival outcomes.
Real-world evidence on dinutuximab beta for high-risk neuroblastoma (NB) in the Chinese pediatric patients remains limited. Patients treated with prior ASCT or combined with chemotherapy showed trends toward improved response rates and survival outcomes, although optimal treatment regimens required further investigation. AEs are generally manageable, and the use of standardized pain assessment combined with multimodal analgesia has enabled a substantial reduction in morphine exposure.
All sensitivity unadjusted and adjusted comparisons supported the results of the base-case analysis. Dinutuximab beta significantly prolonged OS compared to historical control cohorts not treated with dB in both unadjusted and adjusted indirect comparisons.
In this single-center retrospective study, children with a median age 5.1 years (range, 2.0-11.1 years) with R/R HR-NB who were treated with >5 cycles of dinutuximab beta (10 mg/m2/day for 10-days per 35-day cycle), granulocyte-macrophage colony-stimulating factor (GM-CSF) and isotretinoin, plus chemotherapy, were included. No immune-related deaths occurred. Overall, cycles beyond the standard 5 cycles of dinutuximab beta with chemoimmunotherapy were effective and tolerable in pediatric patients with R/R HR-NB, demonstrating improved response and survival outcomes.
The patient was treated with systemic conventional and high-dose chemotherapy combined with intrathecal Topotecan. This case suggests that anti-GD2 immunotherapy, used as consolidation treatment, may improve the prognosis of patients with advanced retinoblastoma and potentially reduce the toxicity associated with standard therapies. Further clinical investigation is warranted to validate these findings.