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Efficacy of Dendritic Cell Therapy for Myeloid Leukemia and Myeloma

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified July 2013 by University Hospital, Antwerp.
Recruitment status was:  Enrolling by invitation
Information provided by:
University Hospital, Antwerp Identifier:
First received: August 24, 2009
Last updated: July 11, 2013
Last verified: July 2013
Dendritic cell therapy is a promising strategy for adjuvant cancer therapy in the setting of minimal residual disease (MRD) to fight off cancer relapse and/or progression. The investigators already performed a phase I safety study in leukemia patients that were in complete remission demonstrating the absence of side effects and feasibility of the therapy. Here, the investigators want to extend on this strategy by studying the clinical efficacy of autologous DC vaccination in patients with acute and chronic myeloid leukemia and myeloma patients. Effects of DC therapy on the immune reactivity towards leukemia cells as well as clinical parameters such molecular MRD monitoring, time to relapse (TTR), progression-free survival (PFS) and overall survival(OS) will be studied in vaccinated and non-vaccinated (control) patients. Patients will be vaccinated using their own dendritic cells electroporated with mRNA coding for the full-length Wilms' tumor antigen WT1.

Condition Intervention Phase
Acute Myeloid Leukemia
Chronic Myeloid Leukemia
Multiple Myeloma
Biological: dendritic cell vaccination (active specific immunotherapy)
Phase 2

Study Type: Interventional
Study Design: Primary Purpose: Treatment
Official Title: Therapeutic Efficacy of Wilms Tumor Gene (WT1) mRNA-electroporated Autologous Dendritic Cell Vaccination in Patients With Myeloid Malignancies and Multiple Myeloma: A Phase II Trial

Resource links provided by NLM:

Further study details as provided by University Hospital, Antwerp:

Primary Outcome Measures:
  • Immunogenicity of WT1 mRNA-transfected DC vaccination
  • Induction/maintenance of molecular remission as evidenced by molecular MRD monitoring of WT1 (AML, CML and MM) and BCR/ABL RNA (CML) copies in peripheral blood

Secondary Outcome Measures:
  • Time to relapse (TTR)
  • progression-free survival
  • overall survival (OS)

Estimated Enrollment: 50
Study Start Date: January 2010
Estimated Primary Completion Date: December 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: standard therapy + vaccination Biological: dendritic cell vaccination (active specific immunotherapy)
No Intervention: standard therapy


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Acute Myeloid Leukemia (AML): all FAB subtypes except M3. Extent of disease:

    • clinical remission after at least one course of polychemotherapy
    • high risk of relapse due to age (> 60 years) or poor risk cytogenetic/molecular markers or hyperleukocytosis at presentation or previous relapse
  • Chronic myeloid leukemia (CML): patients in chronic phase under therapy with tyrosinase kinase inhibitors who have sub-optimal response or failure and who are not eligible for hematopoietic stem cell transplantation.
  • Multiple Myeloma (MM): symptomatic with active disease, independent of earlier and/or concomitant treatment:

    • Presence of serum/urine M protein (> 3 g/dl)
    • Bone marrow plasmacytosis (>10-30%)
    • Anemia, renal failure, hypercalcemia, and/or lytic bone lesions
  • Overexpression of WT1 RNA in peripheral blood and or bone marrow as assessed by quantitative RT-PCR at the time of presentation.For CML: residual molecular disease as demonstrated by BCR-ABL RT-PCR
  • Prior treatments: Patients must have received at least one prior antileukemic chemotherapeutic regimen and must be more than 1 month past the last treatment.
  • Age: ≥ 18 years
  • Performance status: WHO PS grade 0-1 (Appendix B)
  • Objectively assessable parameters of life expectancy: more than 3 months
  • Prior and concomitant associated diseases allowed with the exception of underlying autoimmune disease and positive serology for HIV/HBV/HCV
  • No concomitant use of immunosuppressive drugs
  • adequate renal and liver function, i.e. creatinin and bilirubin = 1.2 times the upper limit of normal
  • absence of any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule; those conditions should be discussed with the patient before registration in the trial
  • Women of child-bearing potential should use adequate contraception prior to study entry and for the duration of study participation

Exclusion Criteria:

  • Subjects with concurrent additional malignancy (with exception of non-melanoma skin cancers and carcinoma in situ of the cervix)
  • Subjects who are pregnant
  • Subjects who have sensitivity to drugs that provide local anesthesia
  • Subjects needing corticosteroids 1 mg/kg during vaccination; corticosteroids are allowed as part of their treatment when taken ≥ 30 days before the start of vaccination.
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Please refer to this study by its identifier: NCT00965224

University Hospital Antwerp
Edegem, Antwerp, Belgium, 2650
Sponsors and Collaborators
University Hospital, Antwerp
  More Information

Publications: Identifier: NCT00965224     History of Changes
Other Study ID Numbers: CCRG 09-003
Study First Received: August 24, 2009
Last Updated: July 11, 2013

Keywords provided by University Hospital, Antwerp:
AML (acute myeloid leukemia)
CML (chronic myeloid leukemia)
MM (multiple myeloma)

Additional relevant MeSH terms:
Leukemia, Myeloid
Multiple Myeloma
Neoplasms, Plasma Cell
Leukemia, Myeloid, Acute
Leukemia, Myelogenous, Chronic, BCR-ABL Positive
Neoplasms by Histologic Type
Hemostatic Disorders
Vascular Diseases
Cardiovascular Diseases
Blood Protein Disorders
Hematologic Diseases
Hemorrhagic Disorders
Lymphoproliferative Disorders
Immunoproliferative Disorders
Immune System Diseases
Myeloproliferative Disorders
Bone Marrow Diseases
Immunologic Factors
Physiological Effects of Drugs processed this record on April 28, 2017