Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-25 @ 1:12 AM
Ignite Modification Date:
2025-12-25 @ 1:12 AM
NCT ID:
NCT02173093
Brief Summary:
Previous research has demonstrated that investigators can coat (arm) T cells with a special molecule called GD2 bispecific antibody that will help T cells recognize neuroblastoma and osteosarcoma cells and kill them. This bispecific antibody recognizes GD2, a protein found on almost all neuroblastoma and osteosarcoma cells. The investigators put the GD2 bispecific antibody on T cells and give large numbers of these T cells back to patients. The investigators think that these T cells may have a better chance of killing GD2 expressing tumor cells when they are armed with GD2 bispecific antibody. This trial studies the side effects and best dose of activated T cells armed with GD2 bispecific antibody and how well they work in treating patients with neuroblastoma, osteosarcoma, and other GD2-positive solid tumors.
Detailed Description:
PRIMARY OBJECTIVES:
I. To perform a phase I dose-escalation study in patients with recurrent or refractory neuroblastoma (NB) and other GD2-positive tumors to evaluate the safety and tolerability and to determine the maximum tolerated dose (MTD) for anti-CD3 x hu3F8 bispecific antibody (GD2Bi)-armed activated T cells (aATC) infused twice a week for a total of eight infusions in combination with daily IL-2 (300,000 IU/m\^2/day) and GM-CSF (250 ug/m\^2 twice per week) in a standard 3 + 3 dose escalation schema with 40, 80, and 160 x 10\^6 cells/kg/infusion dose levels.
II. To conduct a phase II clinical trial to explore efficacy and confirm the toxicity profile of GD2Bi-aATC combined with IL-2 and GM-CSF in a phase II expansion cohort of 22 patients with neuroblastoma (NB) using MTD determined in the phase I.
SECONDARY OBJECTIVES:
I. Evaluate immune responses in the phase I/II trial by sequential monitoring of anti-NB cytotoxicity of peripheral blood lymphocytes and IFN-gamma EliSpots directed at NB lines.
II. To evaluate persistence of aATC in the blood and tumor biopsies by staining for murine IgG2a to confirm trafficking of armed T cells to tumor.
III. To conduct exploratory study of (18F FDG) positron emission tomography (PET)/computed tomography (CT) after armed ATC infusions in selected patients with PET/CT measurable soft tissue and skeletal lesions.
OUTLINE: This is a phase I, dose-escalation study of OKT3/humanized 3F8 bispecific antibody-aATC followed by a phase II study.
Patients receive IL-2 subcutaneously (SC) daily on days -2 to 35, sargramostim SC twice weekly for 4 weeks, and OKT3/humanized 3F8 bispecific antibody-aATC intravenously (IV) over 30 minutes twice weekly for 4 weeks.
After completion of study treatment, patients are followed up at 1, 3, 6, and 12 months.
Study:
NCT02173093
Study Brief:
Protocol Section:
NCT02173093