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Phase 1 study of WT1 peptide vaccine therapy for high risk leukemia patients after hematopoietic stem cell transplantation

Phase 1 study of WT1 peptide vaccine therapy for high risk leukemia patients after hematopoietic stem cell transplantation - WT1 vaccine for high risk leukemia after HSCT - Phase 1

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000002089
Enrollment
18
Registered
2009-06-18
Start date
2009-02-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute myeloid leukemia, Acute lymphoblastic leukemia, Chronic myeloid leukemia blastic phase, Myelodysplastic syndrome with high risk of relapse and/or excess blasts

Interventions

Sponsors

National Cancer Research Center Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Acute myeloid leukemia, Acute lymphoblastic leukemia, Chronic myeloid leukemia blastic phase, or Myelodysplastic syndrome with high risk of relapse (IPSS >=int-2 or WPSS >=high) or excess blasts (RAEB (FAB), RAEB-t (FAB), RAEB-1 (WHO2008), or RAEB-2 (WHO2008)). 2. Patients in hematological complete remission after allogeneic hematopoietic stem cell transplantation. 3. Patients with any one of HLA-A0201, HLA-A0206 or HLA-A2402 genotype. 4. Patients with confirmation of WT1 expression in the peripheral blood (>50copy/ugRNA) or bone marrow (>1500copy/ugRNA) by real-time PCR assay at any time after the diagnosis of leukemia. 5. More than 28 days from reducing immunosuppressive drugs to 3mg/kg of cyclosporin or 0.1mg/kg of tacrolimus and 10 mg/body of prednisolone or less. 6. Patients with ECOG performance status of 0 to 2 7. Patients aged 20 years old and above with no upper limit. 8. Patients with well preserved main organ function. (bone marrow, heart, lung, liver, kidney etc.) Neutrophils above 1,000 Platelets above 50,000 GOT less than 5-times the upper limit of normal GPT less than 5-times the upper limit of normal Bilirubin less than 3-times the upper limit of normal Serum creatinine less than 3-times the upper limit of normal Saturation above 95% at room air No electrocardiogram abnormalities which requires treatment. 9. Patients who are expected to survive for at least 3 months. 10. Patients with written informed consent.

Exclusion criteria

Exclusion criteria: Patients with any one of the criteria are ineligible. 1. Patients with active acute GVHD or extended chronic GVHD (including bronchiolitis obliterans or bronchiolitis obliterans organizing pneumonia). 2. Patients receiving over permitted dose of immunosuppressive drugs or corticosteroids . 3. Patients with active infection including positive cytomegalovirus antigenemia which requires treatment. 4. Patients with positive HBs antigen, or HCV antibody. Patients with active hepatitis or cirrhosis. 5. Pregnant or breast feeding patients. Patients who have a possibility of pregnancy or desire for baby. 6. Patients with active autoimmune disease (including hypothyroidism, idiopathic thrombocytopenic purpura, autoimmune hepatitis) or with a history of those diseases. 7. Patients with active interstitial pneumonia or its history. 8. Patients with a history of allergy or severe adverse reaction against biological agents. 9. Patients with a severe psychological disorder and considered unable to obtain informed consent for the study. 10. Patients with uncontrollable central nervous invasion. 11. Patients participating in other clinical trials*. * If the safety and anti-tumor effect of vaccine therapy is obviously not considered to be affected by the other clinical trials, the patient doesn't need to be excluded. 12. Patients who are considered ineligible for the study.

Design outcomes

Primary

MeasureTime frame
Safety and the immunological optimal dose of WT1 vaccine.

Secondary

MeasureTime frame
Efficacy, Over all survival, Progression free survival

Countries

Japan

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026