NCT06254326 · University of Florida
ADAGiO: Adoptive Cellular Therapy for the TreAtment of Recurrent OliGodendrogliOma (OG) Adult Patients
(ADAGiO)
What this study is about
This study will enroll 6 DLT evaluable subjects (up to 12 patients total) where we will evaluate feasibility and safety of adoptive cellular therapy combined with IDH1/2 inhibitors in patients with recurrent or progressive oligodendroglioma WHO grade 2 and WHO grade 3.
View original scientific description
This study will enroll 6 DLT evaluable subjects (up to 12 patients total) where we will evaluate feasibility and safety of adoptive cellular therapy combined with IDH1/2 inhibitors in patients with recurrent or progressive oligodendroglioma WHO grade 2 and WHO grade 3.
Interventions
BIOLOGICAL
TTRNA-DC vaccines with GM-CSF
Participants will receive up to 9 intradermal DC vaccines (three -bi-weekly (q2 weeks) for priming, monthly for additional 2-3 cycles during T cell expansion, and three bi-weekly during T cell engraftment
BIOLOGICAL
Autologous Hematopoietic Stem cells (HSCs)
Participants will receive a single infusion of autologous CD34+ HSCs
BIOLOGICAL
TTRNA-xALT
Participants will receive a single infusion of ex vivo expanded tumor-reactive T cells
DRUG
Td vaccine
All patients will receive a full Td booster IM vaccine 4-24 hours prior to Vaccine #1 and vaccine site pretreatment with a one-fifth dose of Td intradermally, at the site of planned vaccine, 4-24 hours prior to vaccines #3, #5, #7 and #9.
Primary outcome measures
Prevalence of enrolled subject who receive qualified immunotherapy investigational product.
Time frame: enrollment up to 9 months
Feasibility will be measured by the number of patients who receive autologous dendritic cells, T cells and hematopoietic stem cells that meet the FDA IND defined quality assurance and quality control release criteria. A minimum of 66.7% of enrolled subject must achieve this criterion for feasibility endpoint.
Incidence of investigational treatment related severe toxicity (Dose-limiting toxicity event) assessed during the period beginning with administration of ex vivo expanded TTRNA T cells through 6 weeks post infusion.
Time frame: enrollment to completion of DLT window; up to 9 months.
Safety will be defined as \< 1 DLT out of six enrolled and treated subjects during the defined period of administration of ex vivo expanded TTRNA T cells through 6 weeks post infusion. Investigational treatment related CTCAE V5.0 adverse events 1) Grade III or greater non-neurologic toxicity; 2) Grade III neurologic toxicity that does not improve to Grade II or better within 5 days; or 3) Grade IV neurologic toxicity will be recorded toward DLT.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Male or female, aged 18 years and above
- Tumor tissue obtained on a screening consent is available.
- Confirmed with recurrent/progressive IDH-mutant 1p/19q co-deleted Oligodendroglioma WHO grade 2 or WHO grade 3, more than 12 weeks from completion of radiation.
- Karnofsky Performance Status ≥ 60
- Must be a candidate for surgery/biopsy
- Adequate bone marrow and organ function as defined below:
- ANC ≥ 1,000/mcL
- Platelets ≥ 100,000/mcL
- Hemoglobin ≥ 9 g/dL (can be transfused)
- Serum creatinine ≤ 1.5 x IULN OR Creatinine clearance by Cockcroft-Gault ≥ 60 mL/min for patients with serum creatinine \> 1.5 x IULN
- Serum total bilirubin ≤ 1.5 x IULN OR Direct bilirubin ≤ IULN for patients with total bilirubin \> 1.5 x IULN
- AST (SGOT) and ALT (SGPT) ≤ 3 x IULN
- For females of childbearing potential, negative serum pregnancy test at enrollment
- For women and men of childbearing potential (WOCBP) must be willing to use acceptable contraceptive methods
Exclusion criteria
- Disease progression during treatment with an anti-IDH-1 or anti IDH-2
- Prior invasive malignancy (except for non-melanomatous skin cancer) unless disease free for ≥ 3 years.
- Metastases detected below the tentorium or beyond the cranial vault and leptomeningeal involvement.
- Multifocal disease.
- Corticosteroids equivalent to ≥ 4mg dexamethasone daily.
- HIV, Hepatitis B, or Hepatitis C seropositive.
- Known active infection or immunosuppressive disease.
- Autoimmune disease requiring medical management with immunosuppressant.
- Pregnancy or lactation, due to possible adverse effects on the developing fetus or infant.
- Treatment with another investigational drug or other intervention within 30 days prior to projected first dose of study treatment (Priming phase with TTRNA-DC).
- Severe, active co-morbidity, defined as follows:
- Unstable angina and/or congestive heart failure requiring hospitalization.
- Transmural myocardial infarction within the last 6 months.
- Acute bacterial or fungal infection requiring intravenous antibiotics at time of enrollment.
- Chronic Obstructive Pulmonary Disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy.
- 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.
- Major medical illnesses or psychiatric impairments that, in the investigator's opinion, will prevent administration or completion of protocol therapy.
Where
- Gainesville, Florida
Collaborators
Oligo Nation, Inc
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced May 27, 2026 · Source of record for eligibility and locations