Therapeutic strategies in AML and relapsed or refractory AML
Strategy . | Comments . |
---|---|
AML | |
Induction | |
Daunorubicin 45-60 mg/m2 for 3 days or alternative anthracycline or the anthracenedione mitoxantrone with cytarabine 100 mg/m2 for 7 days | Optimal dose of anthracycline is unknown. |
No definitive evidence that any anthracycline or the anthracenedione mitoxantrone is better at any age. | |
Standard regimen is effective in all cytogenetic subtypes. | |
No evidence that addition of high-dose cytarabine (HiDAC) or etoposide is essential. | |
The induction regimen should not be attenuated for older adults. | |
After remission* | |
HiDAC 1-3 g/m2 over 1-3 hours for 3-6 days × 1-4 cycles | Optimal dose, schedule, and number of cycles of HiDAC are unknown. |
Although HiDAC is clearly effective, groups using different intensive regimens have reported similar data. | |
Maintenance therapy | Standard of care in acute promyelocytic leukemia (APL); role in other subtypes is less convincing. |
Stem-cell transplantation | Most potent antileukemic strategy, but caution is warranted in interpretation of studies that are underpowered and often not applicable to current practice. |
Relapsed or refractory AML | |
Chemotherapy | Rarely curative in any subtype. |
Effective reduction in leukemia-cell burden | Essential for cure. |
High-dose cytarabine is most effective. | |
No evidence that additional drugs are beneficial. | |
May be effective even if prior exposure to cytarabine in induction or consolidation. | |
Best if first CR is long (more than 6-12 months). | |
Investigational approach is appropriate if short CR1 or refractory. | |
Allogeneic transplantation | Potentially curative. |
Best results if in second CR or in early first relapse. | |
Autologous transplantation | Few reports of cure. |
Best results if in second CR with previously harvested stem cells. | |
Palliative care | Appropriate for older adults not eligible for curative approaches. |
Strategy . | Comments . |
---|---|
AML | |
Induction | |
Daunorubicin 45-60 mg/m2 for 3 days or alternative anthracycline or the anthracenedione mitoxantrone with cytarabine 100 mg/m2 for 7 days | Optimal dose of anthracycline is unknown. |
No definitive evidence that any anthracycline or the anthracenedione mitoxantrone is better at any age. | |
Standard regimen is effective in all cytogenetic subtypes. | |
No evidence that addition of high-dose cytarabine (HiDAC) or etoposide is essential. | |
The induction regimen should not be attenuated for older adults. | |
After remission* | |
HiDAC 1-3 g/m2 over 1-3 hours for 3-6 days × 1-4 cycles | Optimal dose, schedule, and number of cycles of HiDAC are unknown. |
Although HiDAC is clearly effective, groups using different intensive regimens have reported similar data. | |
Maintenance therapy | Standard of care in acute promyelocytic leukemia (APL); role in other subtypes is less convincing. |
Stem-cell transplantation | Most potent antileukemic strategy, but caution is warranted in interpretation of studies that are underpowered and often not applicable to current practice. |
Relapsed or refractory AML | |
Chemotherapy | Rarely curative in any subtype. |
Effective reduction in leukemia-cell burden | Essential for cure. |
High-dose cytarabine is most effective. | |
No evidence that additional drugs are beneficial. | |
May be effective even if prior exposure to cytarabine in induction or consolidation. | |
Best if first CR is long (more than 6-12 months). | |
Investigational approach is appropriate if short CR1 or refractory. | |
Allogeneic transplantation | Potentially curative. |
Best results if in second CR or in early first relapse. | |
Autologous transplantation | Few reports of cure. |
Best results if in second CR with previously harvested stem cells. | |
Palliative care | Appropriate for older adults not eligible for curative approaches. |
Essential for curing AML and clearly benefiting younger adults (those younger than 55-60 years old).