Dendritic Cell Vaccine for Patients With Brain Tumors

August 26, 2024 updated by: Jonsson Comprehensive Cancer Center

A Phase II Clinical Trial Evaluating Autologous Dendritic Cells Pulsed With Tumor Lysate Antigen +/- Toll-like Receptor Agonists for the Treatment of Malignant Glioma

The main purpose of this study is to evaluate the most effective immunotherapy vaccine components in patients with malignant glioma. Teh investigators previous phase I study (IRB #03-04-053) already confirmed that this vaccine procedure is safe in patients with malignant brain tumors, and with an indication of extended survival in several patients. However, the previous trial design did not allow us to test which formulation of the vaccine was the most effective. This phase II study will attempt to dissect out which components are most effective together. Dendritic cells (DC) (cells which "present" or "show" cell identifiers to the immune system) isolated from the subject's own blood will be treated with tumor-cell lysate isolated from tumor tissue taken from the same subject during surgery. This pulsing (combining) of antigen-presenting and tumor lysate will be done to try to stimulate the immune system to recognize and destroy the patient's intracranial brain tumor. These pulsed DCs will then be injected back into the patient intradermally as a vaccine. The investigators will also utilize adjuvant imiquimod or poly ICLC (interstitial Cajal-like cell) in some treatment cohorts. It is thought that the host immune system might be taught to "recognize" the malignant brain tumor cells as "foreign" to the body by effectively presenting unique tumor antigens to the host immune cells (T-cells) in vivo.

Study Overview

Study Type

Interventional

Enrollment (Actual)

24

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Los Angeles, California, United States, 90095
        • University of Los Angeles, California

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

PATIENT ELIGIBILITY

Inclusion Criteria

  1. Patients with newly diagnosed or recurrent glioma of WHO Grade III or IV {anaplastic astrocytoma (AA), anaplastic astro-oligodendroglioma (AO), or glioblastoma (GBM)} will be eligible for this protocol.
  2. Patients must have had surgical resection at UCLA (University of California, Los Angeles), for which a separate informed consent was signed for the collection of their tumor prior to surgery.
  3. After surgery, a pathological diagnosis of malignant glioma (WHO Grade III or IV) will need to be established.
  4. Patients must be 18 years or older and able to read and understand the informed consent document. Patients must sign the informed consent indicating that they are aware of the investigational nature of this study.
  5. Patients must have a Karnofsky performance status (KPS) rating of > 60 prior to initiating treatment. Patients may be enrolled at a KPS of < 60 if it is felt that the patient will have adequate opportunity to recover to a KPS of > 60 by the initiation of treatment.

Exclusion Criteria

  1. Subjects with an active infection.
  2. Inability to obtain informed consent because of psychiatric or complicating medical problems.
  3. Unstable or severe intercurrent medical or psychiatric conditions as determined by the Investigator.
  4. Females of child-bearing potential who are pregnant or lactating or who are not using approved contraception.
  5. History of immunodeficiency (e.g., HIV) or autoimmune disease (e.g., rheumatoid arthritis, systemic lupus erythematosus, vasculitis, polymyositis-dermatomyositis, scleroderma, multiple sclerosis, or juvenile-onset insulin-dependent diabetes) that may be exacerbated by immunotherapy.
  6. Subjects with organ allografts.
  7. Inability or unwillingness to return for required visits and follow-up exams.
  8. Subjects who have an uncontrolled systemic malignancy that is not in remission.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Tumor Lysate-pulsed DC vaccination
Cohort #1 will receive autologous tumor lysate-pulsed DC vaccination together with a placebo cream or intramuscular injection of saline.
Experimental: Tumor lysate-pulsed DC vaccination+0.2% resiquimod.
Cohort #2 will receive autologous tumor lysate-pulsed DC vaccination together with adjuvant 0.2% resiquimod.
Experimental: Tumor-lysate pulsed DC vaccination +adjuvant polyICLC.
Cohort #3 will receive autologous tumor lysate-pulsed DC vaccination together with adjuvant poly ICLC (TLR3 agonist).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Most effective combination of DC vaccine components
Time Frame: 6 weeks
6 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Time to tumor progression and overall survival
Time Frame: 2 years
2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 8, 2010

Primary Completion (Actual)

August 21, 2024

Study Completion (Actual)

August 21, 2024

Study Registration Dates

First Submitted

September 16, 2010

First Submitted That Met QC Criteria

September 16, 2010

First Posted (Estimated)

September 17, 2010

Study Record Updates

Last Update Posted (Actual)

August 28, 2024

Last Update Submitted That Met QC Criteria

August 26, 2024

Last Verified

August 1, 2024

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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