Status:

UNKNOWN

Safety and Immunogenicity of Recombinant WT1 Antigen-Specific Cancer Immunotherapeutic Combined With Infusion of Treg Depleted T Cells for Adult WT1 Acute Myeloid Leukemia

Lead Sponsor:

Jules Bordet Institute

Conditions:

Acute Myelogenous Leukemia

Myeloid Leukemia in Remission

Eligibility:

All Genders

18+ years

Phase:

PHASE1

PHASE2

Brief Summary

The purpose of this study is to evaluate the safety and the efficacy of combined treatment strategy of WT1ASCI, infusion of ex vivo regulatory T cells depleted T lymphocytes and in vivo regulatory T c...

Detailed Description

High-risk and intermediate-high risk CR1 AML patients who are not eligible for allo-SCT after chemotherapy have an unfavorable prognosis, and there is currently no treatment able to improve their surv...

Eligibility Criteria

Inclusion

  • The patient has cytologically proven AML, as defined by the WHO classification. The leukemia is a de novo or a secondary leukemia.
  • The patient is in complete morphologic remission Note: Cytogenetic CR (CRc) or molecular CR (CRm) is not required.
  • AML patients in first complete remission (CR1) who are not eligible for allo-HSCT following the institution's standard of care(except the favourable genetic group subset which is excluded from this study).
  • All AML patients in second or third complete morphological remission(CR2 or CR3) who are not eligible for allo-HSCT.
  • The patient received the following therapy according to the institution's standard of care:
  • For patients ≤ 60 years old, at least two cycles of intensive chemotherapy (induction and consolidation)
  • For patients \> 60 years old, at least one induction chemotherapy. Any patients with severe co-morbidity for which consolidation is unacceptable, can receive only one induction therapy.
  • The patient's blasts cells show over-expression of WT1 transcripts, detected in peripheral blood by qRT-PCR at diagnosis or at first relapse.
  • Written informed consent has been obtained prior to the performance of any protocol-specific procedure.
  • The patient is ≥ 18 years of age at the time of signing of the ICF.
  • ECOG performance status of 0, 1, or 2 at the time of enrollment.
  • Adequate hepatic and renal function defined as:
  • Serum bilirubin \< 1.5 times the Upper Limit of Normal (ULN).
  • Serum alanine aminotransferase ALAT \< 2.5 times the ULN.
  • Calculated creatinine clearance \> 40 mL/min.
  • If the patient is female, then she must be of non-childbearing potential, i.e., have a current tubal ligation, hysterectomy, ovariectomy or be post-menopausal, or if she is of childbearing potential, then she must practice adequate contraception for 30 days prior to treatment administration, have a negative pregnancy test, and continue such precautions for two months after completion of the treatment administration series.
  • Under the investigator criteria, the patient is able to comply with the protocol requirements during the duration of the study.
  • In the investigator's opinion and in compliance with the Institution hematology guidance, the patient should not be eligible for an approved standard of care such as induction with chemotherapy or allo-HSCT.

Exclusion

  • The patient is in morphologic leukemia-free state or in morphologic complete remission but with incomplete blood count recovery as defined by IWG Response Criteria
  • The patient is in CR1 and is in the category of low-risk for relapse patients, i.e. belong to the favourable genetic group subset .
  • The patient was diagnosed with leukemic central nervous system (CNS) disease (E.g. before chemotherapy) or presents neurological symptoms at baseline suggestive of a CNS involvement.
  • The patient has received, is receiving (or is due to receive) allo-HSCT.
  • The patient has (or has had) concomitant malignancies, except effectively treated malignancy that is considered by the investigator highly likely to have been cured.
  • The patient is known to be human immunodeficiency virus (HIV)-positive.
  • The patient has symptomatic autoimmune disease such as, but not limited to, multiple sclerosis, lupus, rheumatoid arthritis and inflammatory bowel disease.
  • The patient has a history of allergic reactions likely to be exacerbated by any component of the study investigational product.
  • The patient has other concurrent severe medical problems, unrelated to the malignancy, that would significantly limit full compliance with the study or expose the patient to unacceptable risk.
  • The patient has congestive heart failure, symptomatic coronary artery disease, or previous myocardial infarction.
  • The patient has psychiatric or addictive disorders that may compromise his/her ability to give informed consent, or to comply with the study procedures.
  • The patient has received any investigational or non-registered medicinal product other than the study medication within 30 days preceding the first dose of study medication, or plans to receive such a drug during the study period.
  • The patient requires concomitant treatment with systemic corticosteroids or any other immunosuppressive agents. The use of prednisone, or equivalent, \< 0.5 mg/kg/day (absolute maximum 40 mg/day), inhaled corticosteroids or topical steroids is permitted.
  • The patient has an active infection and/or is receiving antibiotics. The patient has received i.v. administration of antibiotics within two weeks prior to first study treatment or oral antibiotics within one week prior to first study treatment.
  • For female patients: the patient is pregnant or lactating.

Key Trial Info

Start Date :

December 1 2011

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 1 2014

Estimated Enrollment :

20 Patients enrolled

Trial Details

Trial ID

NCT01513109

Start Date

December 1 2011

End Date

December 1 2014

Last Update

January 20 2012

Active Locations (1)

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1

Institut Jules Bordet, tumor center of the Universite Libre de Bruxelles

Brussels, Belgium, 1000