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Dendritic Cell Vaccine Therapy With In Situ Maturation in Pediatric Brain Tumors

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01902771
Recruitment Status : Terminated (Lack of Accrual)
First Posted : July 18, 2013
Last Update Posted : March 10, 2017
Information provided by (Responsible Party):
Edward Ziga, University of Miami

Brief Summary:
DC vaccine manufactured and partially matured using our standard operating procedures, developed in collaboration with the HGG Immuno Group, then administered through imiquimod treated skin will be safe and feasible in children with refractory brain tumors. This will result in anti-tumor immunity that will prolong survival of subjects treated and results will be consistent with the outcomes found for subjects treated by HGG Immuno Group investigators. Study treatment will correlate with laboratory evidence of immune activation. Correlative studies will also reveal targets in the immune system which can be exploited to improve response for patients on successor trials.

Condition or disease Intervention/treatment Phase
Glioma Brain Cancer Brain Tumor Glioblastoma Multiforme High Grade Glioma Biological: Dendritic Cell Vaccine Biological: Tumor Lysate Other: Imiquimod Procedure: Leukapheresis Phase 1

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 1 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase I Study of Dendritic Cell Vaccine Therapy With In Situ Maturation for Pediatric Brain Tumors
Actual Study Start Date : September 3, 2013
Actual Primary Completion Date : October 24, 2016
Actual Study Completion Date : January 26, 2017

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Brain Tumors
Drug Information available for: Imiquimod

Arm Intervention/treatment
Experimental: DC Vaccine + Lysate
  • Leukapheresis: Baseline, post-surgery;
  • Dendritic Cell Vaccine (DC Vaccine): Post-Leukapheresis, administered intradermally once weekly via intradermal injection, for 4 weeks for a total of four vaccinations;
  • Tumor Lysate (Lysate): Post-DC Vaccine therapy. Administered intradermally during weeks 8, 12, 16, and 28;
  • Imiquimod: Self-applied topically by subject before and after scheduled DC Vaccine or Lysate administrations.
Biological: Dendritic Cell Vaccine
Post-Leukapheresis. Subjects will receive DC Vaccine administered once weekly, via intradermal injection, for 4 weeks for a total of four vaccinations, per study protocol.
Other Name: DC Vaccine

Biological: Tumor Lysate
Post-DC Vaccine therapy. Up to 1.5 mg of Lysate of tumor per dose administered via intradermal injection at intervals defined by study protocol.
Other Names:
  • Tumor Cell Lysate
  • Lysate of Tumor

Other: Imiquimod
Subjects will self-apply Imiquimod topically to each designated vaccine site before and after scheduled administrations of DC Vaccine or Lysate, per study protocol.
Other Name: Aldara

Procedure: Leukapheresis
Baseline, post-surgery. Subjects will undergo leukapheresis procedure during baseline, after recovery from surgery to collect peripheral blood mononuclear cells (PBMCs) from which dendritic cells will be obtained, per study protocol.
Other Name: Pheresis

Primary Outcome Measures :
  1. Rate of Toxicity in Study Participants Receiving Protocol Therapy [ Time Frame: Up to 28 Weeks ]
    Rate of treatment-limiting toxicities (TLT) and/or adverse events in study participants receiving protocol therapy.

  2. Rate of Feasibility of Protocol Therapy in Study Participants [ Time Frame: Up to 4 Weeks ]
    Rate of feasibility of protocol therapy in study participants. Feasibility refers to clinical feasibility - whether or not the patient can have enough monocytes removed to manufacture Dendritic Cells.

Secondary Outcome Measures :
  1. Rate of Prolonged Survival or Prolonged Progression-Free Survival in Study Participants [ Time Frame: Up to 24 Months ]
    Rate of prolonged survival or prolonged progression-free survival in study participants. Overall Survival is defined as the time elapsed from the start of treatment until death. For surviving patients, follow-up will be censored at the date of last contact. Progression-Free Survival (PFS) is defined as the time elapsed from the start of treatment to the date of documented progression or death, whichever comes first.

  2. Rate of Measurable Immune Response in Subjects Receiving Protocol Therapy. [ Time Frame: Up to 24 months ]
    Rate of measurable immune response in subjects receiving protocol therapy demonstrated by measurement levels of Myeloid Derived Suppressor Cells before and after treatment.

  3. Comparison of clinical parameters of study participants versus associated outcomes for patients on other DC/Imiquimod studies. [ Time Frame: Up to 24 Months ]
    A comparison of whether the clinical parameters associated with outcomes described for patients on other DC/Imiquimod protocols hold for subjects treated on this study.

  4. Estimation of the Proportion of Subjects with Recurrent Pediatric Brian Tumors who are able to complete DC Vaccine therapy and DC Vaccine + Lysate Therapy. [ Time Frame: Up to 24 months ]
    Estimation of the proportion of subjects with recurrent pediatric brain tumors who are able to receive all administrations of DC, and the proportion who are able to receive all administrations of DC and Lysate.

  5. Identification of Parameters Associated with Poorer Activity of the Vaccine in Study Participants [ Time Frame: Up to 24 Months ]
    Identification of parameters associated with poorer activity of the DC Vaccine in Study Participants in order to develop therapies to augment vaccine therapy.

Information from the National Library of Medicine

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Ages Eligible for Study:   1 Year to 29 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Age: ≥ 1 year and ≤ 29 years
  2. Relapse or progression of any central nervous system tumor initially diagnosed before the age of 21 years.
  3. Total or subtotal resection of tumor mass, confirmed by assessment by the neurosurgeon and by postoperative MRI scan within 72 hours after surgery. The post-operative assessment should demonstrate residual tumor less than or equal to 2 cm^3 as judged by surgeon or on MRI the tumor should only show linear contrast enhancement at the border of the resection cavity or nodule less than 2 cm^3.
  4. No radiotherapy and/or chemotherapy received for at least 1 month before first DC vaccination is to be administered.
  5. No treatment with corticosteroids or salicylates for at least 1 week before first vaccination.
  6. Life expectancy ≥ 3 months
  7. Written consent by patient or parent(s) (if patient is < 18 years) on an institutional review board (IRB)-approved informed consent form prior to any study-specific evaluation. Assent is required from children as per University of Miami (UM) IRB guidelines. Subject must be capable of understanding the investigational nature, potential risks and benefits of the study and able to provide valid informed consent.
  8. Adequate organ function (to be measured at enrollment)

    • Absolute neutrophil count (ANC) ≥750/L
    • Lymphocytes ≥ 500/L
    • Platelets ≥ 75,000/L
    • Hemoglobin ≥ 9 g/dL
    • Aspartate aminotransferase (AST)/Alanine transaminase (ALT) ≤ 2.5 X upper limit of normal (ULN); if liver metastases, ≤ 5 X ULN
    • Serum Creatinine ≤ 1.5 X ULN
    • Total Bilirubin ≤ 3 X ULN
    • Albumin > 2 g/dL
  9. Subjects must agree to use adequate method of contraception or abstinence throughout and up to 4 weeks after the study treatment completion.
  10. Karnofsky score ≥ 70 or Eastern Cooperative Oncology Group (ECOG) status of 0 or 1.

Exclusion Criteria:

  1. Pregnancy.
  2. Breast feeding females.
  3. Any concomitant participation in other therapeutic trials.
  4. Virus serology positive for HIV (testing is not required in the absence of clinical suspicion).
  5. Documented immunodeficiency or autoimmune disease.
  6. Other active malignancies.
  7. Refusal to use adequate contraception for fertile patients (females and males) during the study and for 30 days after the last dose of study treatment.
  8. Any serious or uncontrolled medical or psychiatric condition that in the opinion of the investigator makes the patient not able to participate in the study.
  9. Application of gliadel wafers within the prior 4 months or a plan to place Gliadel wafers at the time of resection for tumor acquisition for study.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01902771

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United States, Florida
University of Miami
Miami, Florida, United States, 33136
Sponsors and Collaborators
Edward Ziga
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Principal Investigator: Edward Ziga, MD University of Miami
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Responsible Party: Edward Ziga, Assistant Professor of Clinical Pediatrics, University of Miami Identifier: NCT01902771    
Other Study ID Numbers: 20130136
First Posted: July 18, 2013    Key Record Dates
Last Update Posted: March 10, 2017
Last Verified: March 2017

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Edward Ziga, University of Miami:
Dendritic Cell Vaccine
Brain Tumor
In Situ
Tumor Lysate
Glioblastoma Multiforme
High Grade Glioma
Additional relevant MeSH terms:
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Brain Neoplasms
Neoplasms, Neuroepithelial
Neuroectodermal Tumors
Neoplasms, Germ Cell and Embryonal
Neoplasms by Histologic Type
Neoplasms, Glandular and Epithelial
Neoplasms, Nerve Tissue
Central Nervous System Neoplasms
Nervous System Neoplasms
Neoplasms by Site
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Immunologic Factors
Physiological Effects of Drugs
Adjuvants, Immunologic
Antineoplastic Agents
Interferon Inducers