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A Study of RNA-lipid Particle (RNA-LP) Vaccines for Newly Diagnosed Pediatric High-Grade Gliomas (pHGG) and Adult Glioblastoma (GBM)

Study Purpose

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

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

No
Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.


Searching Both is inclusive of interventional and observational studies.

Interventional
Eligible Ages 21 Years and Over
Gender All
More Inclusion & Exclusion Criteria

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

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

NCT04573140
Phase

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 1
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

University of Florida
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Elias Sayour, MD, PhD
Principal Investigator Affiliation University of Florida
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Other
Overall Status Recruiting
Countries United States
Conditions

The disease, disorder, syndrome, illness, or injury that is being studied.

Adult Glioblastoma
Additional Details

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.

Arms & Interventions

Arms

Experimental: Phase I adult (Stratum 1)

A maximum of 28 adult patients will be enrolled in dose-escalation study using the BOIN design with an initial embedded accelerated titration design (ATD).

Interventions

Biological: - Autologous total tumor mRNA and pp65 full length (fl) lysosomal associated membrane protein (LAMP) mRNA loaded DOTAP liposome vaccine administered intravenously (RNA loaded lipid particles, RNA-LPs)

The Phase I, Stratum 1 dose-escalation study will be performed in up to 28 adult participants using a Bayesian optimal interval (BOIN) design with an initial embedded accelerated titration design (ATD) to efficiently identify the maximally tolerated dose (MTD). For the initial ATD, patients will be enrolled and treated in cohorts of size 1 starting at dose level -4 to dose level -1, and will expand to a cohort size of 3 after the first DLT is observed or at dose level 0. There are 8 dose levels to potentially be assessed including the possibility of 4 dose levels for the ATD and 4 for the BOIN.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

UF Health, Gainesville, Florida

Status

Recruiting

Address

UF Health

Gainesville, Florida, 32610

Site Contact

Marcia Hodik, RN

[email protected]

352-273-6971