PNOC020:RNA-Lipid Particle Vaccines for Newly Diagnosed Ped HGG and Adult GBM

The primary objective will be to demonstrate the manufacturing feasibility and safety, and to determine the maximum tolerated dose (MTD) of RNA-LP vaccines in (Stratum 1) adult patients with newly diagnosed GBM (MGMT unmethylated). Funding Source * FDA OOPD

This is a first in human Phase I study of RNA-LP vaccines for newly diagnosed adult MGMT unmethylated glioblastoma (GBM). The phase I portion of the study will involve a dose-escalation study to identify the maximally tolerated dose (MTD). Up to 28 participants may be enrolled.

This clinical trial will consist of three parts: Surgery, Radiation, and Immunotherapy. Surgery and chemoradiation will be standard of care for patients with GBM. Potentially eligible participants will be enrolled on a screening consent for the sterile collection of tumor material in a manner suitable for RNA extraction, amplification, and loading of lipid particles (LPs). Tumor material will be sent to the University of Florida (UF). Following surgical resection with confirmatory pathologic diagnosis, patients will be enrolled in the trial after informed consent has been obtained.

The RNA-LP vaccination will begin within 4 weeks following radiation and after review of post-radiation MRI (for baseline). After radiation patients will receive three RNA-LP vaccines every 2 weeks before beginning 12 cycles of adjuvant monthly RNA* LP vaccines for a total of 15 vaccines.

Participants may receive RNA-LP vaccines for up to 14 months.

Participants will be followed until death due to any cause. MRI and clinical evaluation for assessment of disease progression will be conducted every 3 months for the first year post-immunotherapy and then every 6-12 months over the next 2 years.

Inclusion Criteria:

• Age >/= 21 years.

• Histopathologically proven newly-diagnosed de novo GBM (WHO Grade IV glioma) (secondary GBM not eligible) that is MGMT unmethylated.

• The tumor must have a supratentorial component.

• Patient must have been enrolled on a screening consent and have had sterile collection of tumor material in a manner suitable for RNA extraction, amplification, and loading of lipid particles (LPs).

• Residual post-surgical disease burden < 3 cm as defined by longest perpendicular diameter of tumor on post-operative MRI.

• Patients must have recovered from the effects of surgery, postoperative infection, and other complications.

• A diagnostic contrast-enhanced MRI of the brain must be performed preoperatively and postoperatively. Pre-op MRI must be performed within 28 days prior to study enrollment. Post-op MRI must be completed within 48 hours after surgery. Preoperative and postoperative scans must be the same type.

• Performance Score: (KPS) ≥ 60. Participants who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score.

• Bone Marrow:

  • ANC (Absolute neutrophil count) ≥ 1,500µl (unsupported)

  • Platelets ≥ 150/µl (unsupported for at least 3 days)

  • Hemoglobin > 8 g/dL

• Renal:

  • BUN ≤ 25 mg/dl

  • Creatinine ≤ 1.7 mg/dl

• Hepatic

  • Bilirubin ≤ 2.0 mg/dl

  • ALT ≤ 5 times institutional upper limits of normal for age

  • AST ≤ 5 times institutional upper limits of normal for age

• Signed informed consent. If the patient's mental status precludes his/her giving informed consent, written informed consent may be given by the legally authorized representative.

• For women of childbearing potential (WOCBP), negative serum/urine pregnancy test at enrollment (test will be repeated within 72 hours prior to starting TMZ in Stratum 1 patients).

• WOCBP must be willing to use acceptable contraceptive methods to avoid pregnancy throughout the study and for at least 24 weeks after the last dose of study drug.

• Males with female partners of childbearing potential must agree to use physician-approved contraceptive methods (e.g., abstinence, condoms, vasectomy) throughout the study and should avoid conceiving children for 24 weeks following the last dose of study drug.

• Participants with post-surgical neurological deficits should have deficits that are stable for a minimum of 1 week prior to enrollment.

Exclusion Criteria:

• Prior invasive malignancy (except for non-melanomatous skin cancer) unless disease free for ≥ 3 years. (For example, carcinoma in situ of the breast, oral cavity, and cervix are all permissible.)

• MGMT Methylated tumors

• Gliomatosis Cerebri

• Metastases detected below the tentorium or beyond the cranial vault and leptomeningeal involvement.

• Recurrent or multifocal malignant gliomas.

• Metastatic or leptomeningeal disease

• Residual post-surgical disease burden > 3 cm as defined by longest perpendicular diameter on MRI.

• Known HIV, Hepatitis B, or Hepatitis C seropositive.

• Known active infection or immunosuppressive disease.

• Participants who require corticosteroids above physiologic doses or not weaned to physiologic dosing within 1 week of scheduled vaccination.

• Prior chemotherapy or radiosensitizers (including Gliadel wafers) for cancers of the head and neck region, other than TMZ prescribed during radiation for GBM (prior chemotherapy for a different cancer is allowable).

• Prior radiotherapy to the head or neck, resulting in overlap of radiation fields. Radiosurgery is not permitted.

• Severe, active co-morbidity, defined as follows:

  • Unstable angina and/or congestive heart failure requiring hospitalization.

  • Unstable cardiac arrhythmias, abnormalities, or transmural myocardial infarction within the last 6 months.

  • Acute bacterial or fungal infection requiring intravenous antibiotics at initiation of XRT/TMZ.

  • Chronic Obstructive Pulmonary Disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy at initiation of XRT/TMZ.

  • Hepatic insufficiency resulting in clinical jaundice and/or coagulation defects.

  • Acquired Immune Deficiency Syndrome (AIDS) based upon current CDC definition. The need to exclude patients with AIDS from this protocol is necessary because the treatments involved in this protocol may be significantly immunosuppressive.

  • Patients with autoimmune disease requiring medical management with immunosuppressants.

  • Major medical illnesses or psychiatric impairments that, in the investigator's opinion, will prevent administration or completion of protocol therapy.

  • Active connective tissue disorders such as lupus or scleroderma that, in the investigator's opinion, place the patient at high risk for radiation toxicity.

  • Pregnancy or women of childbearing potential and men who are sexually active and who are unwilling or unable to use an acceptable method of contraception for the entire study period; this exclusion is necessary because the treatment involved in this study may be significantly teratogenic.

• Women of childbearing potential must not be pregnant or breast-feeding.

• Prior history of brachial neuritis or Guillain-Barré syndrome.

• Participants who are receiving any other investigational agents or who have been treated on any other therapeutic clinical protocols within 30 days prior to study entry.

• Participants who are unwilling or unable to receive treatment and undergo follow-up evaluations