AML Flashcards
Imaging if central nervous system (CNS) hemorrhage
suspected
Brain CT without contrast
Imaging if leukemic meningitis suspected
Brain MRI with and without contrast
Imaging in individuals with extramedullary disease
FDG-PET/CT
Imaging to evaluate myocardial function in patients
with a history or symptoms of cardiac disease or prior/planned exposure to cardiotoxic drugs or radiation therapy (RT) to thorax
Echocardiogram or MUGA scan
WBC count for Low risk APL
≤10 x 109/L
TRUE OR FALSE
FLT3 inhibitors are not recommended for FLT3-positive APL.
TRUE
FLT3 inhibitors are not recommended for FLT3-positive APL.
Used to manage high WBC count (>10 x 109/L) during induction with ATRA/arsenic trioxide
Hydroxyurea
Preferred Regimen for Low-Risk APL Induction
ATRA/arsenic trioxide
- ATRA 45 mg/m2 in 2 divided doses daily + arsenic trioxide 0.15 mg/kg IV daily (category 1)
- ATRA 45 mg/m2 in 2 divided doses daily + arsenic trioxide 0.3 mg/kg IV on days 1–5 of week 1 and 0.25 mg/kg twice weekly during weeks 2–8 (category 1)
Preferred Regimen for Low-Risk APL Consolidation
Arsenic trioxide/ATRA
- Arsenic trioxideh 0.15 mg/kg/d IV 5 d/wk for 4 weeks every 8 weeks for a total of 4 cycles, and ATRA 45 mg/ m2/d for 2 weeks every 4 weeks for a total of 7 cycles (category 1)
Low-Risk APL
Useful in Certain Circumstances (if arsenic is not available or contraindicated)
Induction: ATRA/idarubicin;
Consolidation: ATRA/idarubicin, then ATRA/mitoxantrone, then ATRA/idarubicin
Induction: ATRA/gemtuzumab ozogamicin
Consolidation: ATRA/gemtuzumab ozogamicin
Induction:
* ATRA 45 mg/m2 in 2 divided doses daily + idarubicin 12 mg/
m2 on days 2, 4, 6, 8 (category 1) or on days 2, 4, 6 for aged >70 y
* ATRA 45 mg/m2 in 2 divided doses daily + a single dose of
gemtuzumab ozogamicin 9 mg/ m2 on day 5
Consolidation
ATRA 45 mg/m2 x 15 days + idarubicin 5 mg/m2 x 4 days x 1 cycle,
then ATRA x 15 days + mitoxantrone 10 mg/m2/d x 3 days x 1
cycle, then ATRA x 15 days + idarubicin 12 mg/m2 x 1 day x 1 cycle
(category 1)
Preferred Regimen for High-Risk APL Induction and Consolidation
Induction: ATRA/idarubicin/arsenic trioxide;
Consolidation: ATRA/arsenic trioxide
Induction: ATRA/arsenic trioxide/gemtuzumab ozogamicin;
Consolidation: Arsenic trioxide/ATRA
Induction: ATRA/arsenic trioxide/gemtuzumab ozogamicin;
Consolidation: Gemtuzumab ozogamicin (if ATRA/arsenic trioxide discontinued due to toxicity)
Regimen for High-Risk APL with Cardiac Issue: Low-Ejection Fraction
Induction: ATRA/arsenic trioxide/gemtuzumab ozogamicin;
Consolidation: Arsenic trioxide/ATRA
Induction: ATRA/arsenic trioxide/gemtuzumab ozogamicin;
Consolidation: Gemtuzumab ozogamicin (if ATRA/Arsenic trioxide discontinued due to toxicity)
No anthracyclibe
Regimen for High-Risk APL with Cardiac Issue: Prolonged QTc
Induction: ATRA/gemtuzumab ozogamicin;
Consolidation: ATRA/gemtuzumab ozogamicin
Induction: ATRA/daunorubicin/cytarabine;
Consolidation: Daunorubicin/cytarabine, then cytarabine/daunorubicin/IT chemotherapy
Induction: ATRA/idarubicin;
Consolidation: ATRA/idarubicin/cytarabine, then ATRA/mitoxantrone, then ATRA/idarubicin/cytarabine
No ATO
Test that should be performed on a blood sample at completion of consolidation to document molecular remission.
PCR
PCR monitoring
In patients receiving the ATRA/arsenic regimen,
consider earlier sampling at ______ months during consolidation.
3–4 months during consolidation
Prior practice guidelines have recommended monitoring blood by PCR every 3 mo for 2 y to
detect molecular relapse.
This is reccomended for patients with:
- High-risk disease
- Those >60 y of age
- Had long interruptions during consolidation
- Patients on regimens that use maintenance and are not able to tolerate maintenance
To confirm PCR positivity, a second blood sample should be done in ___ weeks in a reliable laboratory
2–4 weeks
- If the second test is negative, frequent monitoring (every 3 mo for 2 y) is strongly recommended to confirm that the test remains negative.
- The PCR testing lab should indicate the level of sensitivity of assay for positivity (most clinical labs have a sensitivity level of 10-4)
Management of clinical coagulopathy in APL
Targets
- Platelets ≥50 x 109/L
- Fibrinogen >150 mg/dL
- PT and PTT close to normal values
Monitor daily until coagulopathy resolves.
TRUE OR FALSE
Leukapheresis is not routinely recommended in patients with a high WBC count in APL because of the difference in leukemia biology.
TRUE
Leukapheresis is not routinely recommended in patients with a high WBC count in APL because of the difference in leukemia biology.
However, in life-threatening cases with leukostasis that is not responsive to other modalities, leukapheresis can be considered with caution.
Syndrome associated with fever, often associated with increasing WBC count >10 x 109/L, usually
at initial diagnosis or relapse; shortness of breath; hypoxemia; pleural or pericardial effusions
Differentiation Syndrome
Management of Differentiation Syndrome
- Close monitoring of volume overload and pulmonary status is indicated.
- Initiate dexamethasone at first signs or symptoms of respiratory compromise (ie, hypoxemia, pulmonary infiltrates, pericardial or pleural effusions) (10 mg BID for 3–5 days with a taper over 2 weeks)
- Consider interrupting ATRA therapy until hypoxia resolves.
Prophylaxis for Differentiation Syndrome
Prednisone 0.5 mg/kg day or
Dexamethasone 10 mg every 12 h
Treatment for leukocytosis associated with differentiation syndrome
- Hydroxyurea
- Anthracycline (daunorubicin or idarubicin) or Gemtuzumab ozogamicin
Diagnostics prior to starting ATO
- ECG for prolonged QTc interval assessment
- Serum electrolytes (Ca, K, Mg, phosphorus) and creatinine
During therapy (weekly during induction therapy and before each course of post-remission therapy)
Preferred Induction Regimen: Favorable-Risk AML by Cytogenetics (CBF-AML)
Cytarabine/Daunorubicin/Gemtuzumab ozogamicin
Cytarabine/Idarubicin/Gemtuzumab ozogamicin
Other recommended: 7 + 3 (mitoxantrone) - (for age ≥60 y)
Preferred Induction Regimen: Favorable-Risk AML by Mutation Profile (NPM1-mutated/FLT3 wild-type AML, in-frame bZIP mutation in CEBPA) and Intermediate-risk AML
Cytarabine/Daunorubicin
Cytarabine/Idarubicin
Cytarabine/Mitoxantrone (for age ≥60 y)
Induction Regimen: AML with FLT3 mutation
Cytarabine/Daunorubicin/Midostaurin
Cytarabine/Idarubicin/Midostaurin
Cytarabine/Daunorubicin/Quizartinib
Cytarabine/Idarubicin/Quizartinib
Walang preferred
Preferred Induction Regimen: Therapy-related AML other than CBF-AML; Antecedent MDS/CMML; AML-MRC
CPX-351/dual-drug liposomal cytarabine and daunorubicin (≥60 years of age)
Cytarabine/Daunorubicin (<60 years of age)
Cytarabine/Idarubicin (<60 years of age)
Induction Regimen: Poor-Risk AML without TP53 Mutation or del17p Abnormality
Cytarabine/Daunorubicin
Cytarabine/Idarubicin
CPX-351/dual-drug liposomal cytarabine and daunorubicin
FLAG-IDA
Decitabine (days 1–5)/Venetoclax
Azacitidine/Venetoclax
LDAC/Venetoclax
No regimens are considered preferred, clinical trial is recommended
Management of leukocytosis/leukostasis
- Leukapheresis
- Hydroxyurea
- Single dose of cytarabine
Prompt institution of definitive therapy is essential.
Patients who receive transplant shortly following gemtuzumab ozogamicin administration may be at risk for developing ________________________.
Sinusoidal obstruction syndrome (SOS)
In times of fludarabine shortage, __________ can be substituted for fludarabine.
Cladribine
TRUE OR FALSE
Gemtuzumab ozogamicin may be beneficial in NPM1-mutated AML and CEBPA-mutated AML.
FALSE
Gemtuzumab ozogamicin may be beneficial in NPM1-mutated AML
The role of gemtuzumab ozogamicin in CEBPA-mutated AML is not established.
TRUE OR FALSE
While conventional induction chemotherapy regimens can be given in the setting of a TP53 mutation, less intensive chemotherapy is preferred for patients not enrolled in clinical trials.
TRUE
While conventional induction chemotherapy regimens can be given in the setting of a TP53 mutation, less intensive chemotherapy is preferred for patients not enrolled in clinical trials.
Outcomes for patients with poor-risk AML with TP53 mutation remain poor with conventional induction chemotherapy.
The panel prioritizes clinical trial enrollment in this setting.
When to perform follow-up BM aspirate and biopsy post induction
14–21 days after start
of therapy
When using a cytarabine-based induction regimen with doses of cytarabine >100 to 200 mg/m2, consider delaying BM aspirate and biopsy to D21.
If there is ambiguous resut, repeat BM biopsy within ____ days before proceeding with therapy
7 days
Hypoplasia is defined as:
Cellularity less than 20% of which the residual blasts are less than 5% (ie, blast percentage of residual cellularity).
When to perform follow-up BM aspirate and biopsy post re-induction
- Upon count recovery, or
- By day 42 at the latest in the setting of
delayed count recovery
When performed, BM aspirate and biopsy should include cytogenetic and molecular studies, as appropriate.
For measurable (minimal) residual disease (MRD) assessment
Preferred Regimen: LOWER INTENSITY THERAPY (INTENSIVE INDUCTION INELIGIBLE OR DECLINES)
AML without IDH1 mutation
- Azacitidine + venetoclax (category 1)
- Decitabine + venetoclax
Preferred Regimen: LOWER INTENSITY THERAPY (INTENSIVE INDUCTION INELIGIBLE OR DECLINES)
AML with IDH1 mutation
- Azacitidine + venetoclax (category 1)
- Azacitidine + ivosidenib (category 1)
For patients who decline induction chemotherapy and/or targeted therapy, best supportive care may include:
Hydroxyurea and/or transfusion support
Response to treatment with enasidenib or ivosidenib may take ____ months
3–5 months