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

NCT01513109 | Unknown Phase 1

• 1 other identifier: BORLEUWT01
• Study Type: interventional
• Target: 20
• Locations: 1 country
• Sites: 1

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 cells depletion as post-consolidation therapy in patients with WT1-positive Acute Myeloid Leukemia. The study will also evaluate the clinical activity and immune response of this approach in bad risk patients in CR1 and all patients in CR2 or CR3, non eligible for an allogeneic Hematopoietic Stem Cell Transplantation

Conditions

Acute Myelogenous Leukemia; Myeloid Leukemia in Remission; Effects of Immunotherapy

Keywords

WT1 positive Acute Myeloid Leukemia; Antigen specific cancer immunotherapeutic; Ex vivo regulatory T cell depletion; In vivo regulatory T cell depletion

Outcome Measures

Primary Outcomes (1)

• Occurence of severe toxicities

  4 years

Secondary Outcomes (1)

• Immunogenicity of the WT1 ASCI

  4 years

Study Arms (1)

Treatment arm

EXPERIMENTAL

Recombinant WT1 Antigen-Specific Cancer Immunotherapeutic combined with Treg depletion

Biological: Recombinant WT1 Antigen-Specific Cancer Immunotherapeutic (ASCI)

Interventions

Recombinant WT1 Antigen-Specific Cancer Immunotherapeutic (ASCI) BIOLOGICAL

i.m. administration

Treatment arm

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• 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.

You may not qualify if:

• 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.

Sponsors & Collaborators

• Jules Bordet Institute: lead

Study Sites (1)

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

Brussels, 1000, Belgium

RECRUITING

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MeSH Terms

Conditions

Leukemia, Myeloid, Acute

Condition Hierarchy (Ancestors)

Leukemia, Myeloid; Leukemia; Neoplasms by Histologic Type; Neoplasms; Hematologic Diseases; Hemic and Lymphatic Diseases

Study Officials

• Philippe Martiat, MD PhD

  Jules Bordet Institute

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 16, 2012
• First Posted: January 20, 2012
• Study Start: December 1, 2011
• Primary Completion: December 1, 2013
• Study Completion: December 1, 2014
• Last Updated: January 20, 2012

Record last verified: 2012-01

Locations

BE (1)