Severe Aplastic Anemia
Conditions
Keywords
ATG, SAA, immunosuppressive treatment, cyclosporine
Brief summary
Severe acquired aplastic anaemia (SAA) is a life-threatening disease characterized by pancytopenia and hypoplastic bone marrow. Immunosuppressive treatment with antithymocyte globulin (ATG)and cyclosporine remain the standard regimen with response rates of 70% or more and excellent overall survival. However ,there are no clinical trials to illustrate the response and complete remission rate with different doses of ATG.And there are no data reported on children with SAA so far.
Interventions
Drug ATG:2.5mg/kg/d or 3.75mg/kg/d for 5 days; Drug Cyclosporine A (CSA):3-10mg/kg/d ,Adjust the dose to maintain drug levels between 150 and 300ng/ml; Drug prednisone:1mg/kg/d,d1-21 from the first dosage of ATG; Drug Granulocyte Colony-Stimulating Factor(G-CSF):5ug/kg/d until absolute neutrophil count (ANC) \>1×109/L.
Sponsors
Study design
Eligibility
Inclusion criteria
* clinical diagnosis of childhood acquired severe aplastic anemia(SAA)
Exclusion criteria
* clinical diagnosis of no childhood acquired severe aplastic anemia(SAA)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| the response and complete remission rate with different doses of ATG to treat child severe aplastic anemia | 1 years | Complete response (CR) was defined as achieving normal levels of hemoglobin adjusted for age, platelet count \>100×109/L, and ANC\>1.5×109/L. Partial response (PR) was defined as transfusion independence, reticulocyte count \>30×109/L, platelet count \>20×109/L, and ANC \>0.5×109/L above the baseline. Persistence of transfusion requirement or death was evidence of no response (NR). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| the relapse rate with different doses of ATG to treat child severe aplastic anemia | 4-10 years | relapse was defined as transfusion dependence again; or progressed to paroxysmal nocturnal hemoglobinuria (PNH) /acute myeloid leukemia/myelodysplasia syndrome (MDS); or CSA dependence |
Countries
China