Clinical trial NCT01819558: Phase I/II Study of Immune Therapy After Allograft in Patients With Myeloid Hemopathy
Official title: Etude Phase I/II d'immunothérapie Par protéine recWT1-A10+AS01B après Greffe allogénique de Cellules Souches
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
PHASE2
Conditions: Acute Myeloid Leukemia
Chronic Myeloid Leukemia
Myelodysplastic Syndrome
Keywords: acute myeloid leukemia
chronic myeloid leukemia
myelodysplastic syndrome
allograft
WT1 expression
Lead sponsor: Institut Paoli-Calmettes
Sponsor class: OTHER
First posted: 2013-03-27
Enrollment: 2
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: Patients with acute or chronic myeloid leukemia, or myelodysplastic syndrome, underwent allogeneic stem cell transplantation from HLA-identical donor (related or unrelated) after reduced-intensity conditioning regimen.

If WT1 expression is detectable on tumor cells, they will receive an immune therapy 60 days after allograft.

6 administrations every 2 weeks of the protein recwt1-A10+AS01B will be administrated.

The safety and immunological efficacy of this immune therapy after hematopoietic stem cells transplantation with reduced intensity conditioning will be evaluated.


Eligibility criteria: Inclusion Criteria:

1. Patients older than 18 and younger than 65 years.
2. Karnofsky ≥ 70 %.
3. Patients with acute or chronic myeloid leukemia, or myelodysplastic syndrome, who underwent allogeneic stem cell transplantation from HLA-identical donor (related or unrelated) after reduced-intensity conditioning regimen.
4. Patients in morphologic complete remission at the time of transplantation.
5. WT1 expression detectable on tumor cells.
6. Expected life duration more than 6 months.
7. Creatinine clearance ≥ 50 ml/min
8. Bilirubinemia \< 1.5N and ASAT \< 2.5N.
9. Women of childbearing age: negative pregnancy test and effective contraception for at least 30 days before vaccinal immunotherapy (the same contraceptive method must be continued at least 2 months after the last vaccine infusion).
10. Membership of a social security scheme or beneficiary of such a regime.
11. Signed inform consent.

Exclusion Criteria:

1. Patients with severe and uncontrolled affections, especially active graft-versus-host disease requiring steroid treatment (\>0.3 mg/kg/j) and/or Mycophenolate mofetil.
2. Pregnant or lactating women.
3. HIV seropositive patients.
4. Autoimmune disease (Lupus, multiple sclerosis, Chron disease...)
5. Previous history of allergic state which could be potentially compound by a component of the vaccinal immunotherapy.
6. Patients who received (or are planned to receive) another experimental treatment within 30 days following the first infusion of the experimental drug of this protocol.
7. Previous history of another cancer, except if considered as probably cured by the investigator.
8. Patients deprived of liberty, or under guardianship.

Primary outcomes:
measure: safety
timeFrame: 30 days
Secondary outcomes:
measure: immune response
timeFrame: up to 60 weeks after treatment
Other outcomes:
Locations:
city: Marseille
country: France
facility: Institut Paoli-Calmettes
Study officials:
affiliation: Institut Paoli-Calmettes
name: Didier BLAISE, MD PhD
role: PRINCIPAL_INVESTIGATOR
References: