Phase I Research Study Utilizing Allogeneic Multi Tumor-Associated Antigen-Specific T Lymphocytes to Advance the Care of Patients With High-Risk Solid Tumors
Children's National Research Institute
Summary
This is an open-label phase I dose-escalation study to evaluate the safety of partially human leukocyte antigen (HLA)-matched multi tumor-associated antigen-specific T cell (TAA-T) therapy following lymphodepleting conditioning with or without local tumor ablation for pediatric and adult patients with high-risk solid tumors due to the presence of refractory, relapsed and/or minimal residual detectable disease following conventional therapy (e.g., chemotherapy, surgery, radiation, autologous stem cell transplant, or targeted therapy).
Description
In this dose escalation trial, three dose levels will be tested for safety. TAA-T product will first be administered to patients as monotherapy at dose level 1 to determine safety. All participants enrolled to DL2 or DL3 will be assigned to one of the following at Screening Eligibility: * Treatment Regimen 1 (Tx-R1): Lymphodepleting chemotherapy + TAA-T therapy * Treatment Regimen 2 (Tx-R2): Lymphodepleting chemotherapy + local tumor ablation with cryoablation or PEF (cryoablation/PEF) + TAA-T therapy In this dose escalation trial, three dose levels will be tested for safety. The protocol-l…
Eligibility
- Age range
- 1–70 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Diagnosis of high-risk solid tumors known to express at least 2 targeted antigens by either histology or historical reference: Ewing sarcoma, Wilms tumor, neuroblastoma, rhabdomyosarcoma, soft tissue sarcoma, and osteosarcoma. * HLA type and match through at least one allele with antigen-specific activity. * Following conventional therapy: refractory disease, residual detectable disease, or relapsed disease. * Age \>= 1 year and \<70 years * Patient or parent/guardian capable of providing informed consent. * No systemic corticosteroid exposure within 1 week of initiating…
Interventions
- BiologicalTumor-associated antigen-specific T cell (TAA-T)
Patients will receive cells due to the presence of refractory disease, or high risk for disease relapse and/or minimal residual detectable disease following conventional therapy. The treatment schedule is as follows: Patients will receive an infusion of partially HLA-matched TAA-T any time \>1 week after completing most recent course of conventional (noninvestigational) therapy for their disease. For patients enrolled to DL2 or DL3, they will receive protocol-described lymphodepletion (LD) chemotherapy (fludarabine and cyclophosphamide) \>2 weeks from most recent course of conventional therapy and post nadir and recovery from the prior therapy. Patients will be enrolled to one of the following TAA-T dose levels: BSA \<1.20 Dose Level 2 (+/- ablation + low dose TAA-T cells) 2x10\^7 Dose Level 3 (+/- ablation + high dose TAA-T cells) 4x10\^7 BSA\>=1.20 Dose Level 2 (+/- ablation + low dose TAA-T cells) 4x10\^7 Dose Level 3 (+/- ablation + high dose TAA-T cells) 8x10\^7
Location
- Children's National HospitalWashington D.C., District of Columbia