A Phase II Study of Vaccinations With HLA-A2 Restricted Glioma Antigen Peptides in Combination With Poly-ICLC for Children With Recurrent Unresectable Low-Grade Gliomas (LGG)
James Felker
Summary
The study will assess the immunogenicity, safety and preliminary clinical efficacy of the glioma associated antigen (GAA)/tetanus toxoid (TT) peptide vaccine and poly-ICLC in HLA-A2+ children with unresectable low-grade gliomas that have received at least two chemotherapy/biologic regimens. Radiation therapy counts as one biologic regimen, but patients may not have received radiation to the index lesion within 1 year of enrollment.
Description
Patients will be treated with subcutaneous injections of GAA/TT-vaccines starting on Week 0 and every 3 weeks thereafter for up to 8 cycles or until Off-treatment criteria are met (Section 4.6). I.m. poly-ICLC will be administered (30ug/kg i.m.) immediately following the vaccine. Poly-ICLC should be administered i.m. within 3 cm of the peptide-injection site. To allow for flexibility with scheduling, the peptide vaccine and Poly-ICLC dose may be given within one week of the date that the vaccine and poly-ICLC administration are due. Patients will be evaluated for any possible adverse event,…
Eligibility
- Age range
- 1–21 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: Tumor Type * Unresectable low-grade gliomas that have received at least two chemotherapy/biologic regimens. Radiation therapy counts as a biologic regimen. Patients may not have received radiation therapy to the index lesion within 1 year of enrollment. Patients may have tumor spread within the central nervous system (CNS). * HLA-A2 positive based on flow cytometry. * Patients must be clinically stable and off or on low-dose (no more than 0.1 mg/kg/day, max 4 mg/day Dexamethasone) corticosteroid for at least one week prior to study registration. * Patients must be ≥ 12 mo…
Interventions
- BiologicalExperimental: HLA-A2 Restricted Glioma Antigen-Peptides with Poly-ICLC
Poly-ICLC is administered intramuscularly (i.m.) using sterile technique, as supplied from the vial, and in the amount prescribed for the participant's weight. Patients should receive a dose of acetaminophen (15 mg/kg up to a max of 1000 mg) 30-60 minutes before each poly-ICLC administration. The poly-ICLC treatments will be administered immediately following the vaccine. Patients/parents will be asked to report any temperature elevations and side effects after each treatment.
Location
- Children's Hospital of Pittsburgh of UPMCPittsburgh, Pennsylvania