Evaluation of a New Anti-cancer Immunotherapy After Chemotherapy in Adult Patients With Acute Myeloid Leukemia (AML)

Inclusion Criteria: * The patient has cytologically proven AML, as defined by the WHO classification. The pretreatment AML karyotype should be documented. * The leukemia could be a de novo or secondary AML. * The patient received induction and consolidation therapy according to the Institution's standard of care. * The patient's blasts cells show expression of WT1 tran-script, detected by quantitative RT-PCR. * The patient is in complete remission (i.e. CR1, CR2, …): * 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 signature of the informed consent form. * Eastern Cooperative Oncology Group performance status of 0, 1 or 2. * Adequate hepatic and renal function defined as: * Serum bilirubin \< 1.5 times the Upper Limit of Nor-mal (ULN). * Serum alanine aminotransferase \< 2.5 times the ULN. * Calculated creatinine clearance \> 50 mL/min. * If the patient is female, 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, she must practice adequate con-traception for 30 days prior to treatment administration, have a negative pregnancy test and continue such pre-cautions for two months after completion of the treatment administration series. * In the view of the investigator, the patient can and will comply with the requirements of the protocol. Exclusion Criteria: * The patient is in morphologic leukemia-free state or in morphologic complete remission with incomplete blood count recovery (CRi). * The patient has acute promyelocytic leukemia with t(15;17)(q22;q12), (PML/RARα) or variants. * The patient has received, or is receiving induction chemotherapy followed by Stem Cell Transplantation. * The patient has (or has had) previous or concomitant malignancies, except effectively treated malignancy that is considered by the investigator highly likely to have been cured. * The patient has hypercalcemia. * The patient is known to be HIV-positive. * The patient has symptomatic autoimmune disease such as, but not limited to multiple sclerosis, lupus, and in-flammatory 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 prob-lems, unrelated to the malignancy, that would significantly limit full compliance with the study or expose the patient to unacceptable risk. * The patient has a history of congestive heart failure, cor-onary 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 medi-cation 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), or inhaled corticosteroids or topical steroids is permitted. * The patient has received intravenous administration of antibiotics within 2 weeks prior to first study treatment or oral antibiotics within 1 week prior to first study treatment. * For female patients: the patient is pregnant or lactating.