Imiquimod and Tumor Lysate Vaccine Immunotherapy in Adults With High Risk or Recurrent Grade II Gliomas
High Risk WHO Grade II Glioma, Recurrent/Post-Chemotherapy WHO Grade II Glioma
About this trial
This is an interventional treatment trial for High Risk WHO Grade II Glioma focused on measuring Glioma, Vaccine, Immunotherapy, WHO Grade II
Eligibility Criteria
Inclusion Criteria:
Cohort 1 and 2: Age ≥18 year old with histologically diagnosed World Health Organization (WHO) grade II astrocytoma or oligoastrocytoma with "high-risk" factors - defined as:
- age ≥ 40 with any extent resection;
- age 18-39 with incomplete resection (post-op MRI showing >1cm residual disease, based on the maximum dimension of residual T2 or fluid-attenuated inversion-recovery [FLAIR] abnormality from the edge of the surgical cavity either laterally, anteroposteriorly, or superoinferiorly) or
- age 18-39 with neurosurgeon-defined gross total resection (GTR) but the tumor size is ≥ 4 cm (the maximum preoperative tumor diameter, based on the axial and/or coronal T2 or FLAIR MR images) Cohort 3: Age ≥18 year old with histologically diagnosed WHO grade II glioma with recurrence
- Karnofsky performance status ≥ 60%
- Clinically stable and off corticosteroids for at least 4 weeks prior to study enrollment
- Adequate organ function within 14 days of study registration including:
- Adequate bone marrow reserve: absolute neutrophil (segmented and bands) count (ANC) ≥1.0 x 109/L, platelets ≥100 x 109/L; hemoglobin ≥ 8 g/dL
- Hepatic: - Total bilirubin ≤ 1.5 x upper limit of normal (ULN) for age and SGPT (ALT) ≤ 2.5 x upper limit of normal (ULN) for age
- Renal: Normal serum creatinine or creatinine clearance ≥60 ml/min/1.73 m2
Exclusion Criteria:
- History of immune system abnormalities such as hyperimmunity (e.g., autoimmune diseases) that required systemic immunosuppression therapy and hypoimmunity (e.g., myelodysplastic disorders, marrow failures, AIDS, ongoing pregnancy, transplant immunosuppression)
- Any isolated laboratory abnormality suggestive of a serious autoimmune disease (e.g. hypothyroidism)
- Any conditions that could potentially alter immune function (AIDS, multiple sclerosis, diabetes, renal failure)
- Receiving ongoing treatment with immunosuppressive drugs, excluding those patients requiring dexamethasone for treatment of tumor-related edema
- Currently receiving any investigational agents or registration on another therapy based trial
- Pregnant or lactating
Sites / Locations
- University of Pittsburgh Medical Center
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Experimental
Cohort 1
Cohort 2
Cohort 3
Patients must have undergone surgery or biopsy alone (no postoperative radiation or chemotherapy) and have a baseline MRI scan (within 4 weeks of the first vaccine) that shows stable disease or regression (no progression from the initial surgery/biopsy).
Patients received surgery or biopsy and radiation therapy (RT) (including fractionated external beam radiation therapy and/or stereotactic radiosurgery), which was completed ≥ 6 months prior to enrollment, and have a baseline MRI scan within 4 weeks prior to the first vaccine that shows stable disease or regression.
Patients with recurrent WHO grade 2 glioma may have received prior external beam radiotherapy and/or chemotherapy. Patients with stable WHO grade 2 glioma must have had prior chemotherapy (at least one cycle of Temozolomide or PCV-based chemotherapy). With regard to the prior therapy in Cohort 3, patients may have had treatment for no more than 2 prior relapses. Relapse is defined as progression following initial therapy (i.e. radiation +/- chemo if that was used as initial therapy) or observation of stable disease. The intent therefore is that patients may have had 3 prior therapies (initial therapy and treatment for 2 relapses). If the patient had a surgical resection for relapsed disease, and no anti-cancer therapy was instituted for up to 12 weeks, and the patient undergoes another surgical resection, this is considered as 1 relapse.