The FDA approval of dinutuximab was based on the results from a randomized (1:1) clinical trial in which 226 pediatric patients with neuroblastoma, ages 11 months to 15 years, were assigned to receive either RA alone or a combination of RA with dinutuximab, IL-2, and GM-CSF. All patients had received prior combination chemotherapy therapy, surgical resection, myeloablative consolidation chemotherapy followed by autologous stem cell transplant, and radiation therapy to residual soft tissue disease. After three years, 63 percent of participants from the dinutuximab-containing combination arm were alive and free of tumor growth or recurrence, compared to 46 percent of participants from the RA alone arm.
Following approval, the drug company has agreed to certain postmarketing requirements and commitments to gather additional information about the product’s safety, efficacy, or optimal use.