AML Flashcards
What 4 genetic abnormalities classify AML as favorable risk?
t(8;21)
inv(16)
Mutated NPM1 without FLT3-ITD
bZIP in-frame mutated CEBPA
What three genetic abnormalities classify someones AML as intermediate risk?
Mutated NPM1 with FLT3-ITD
Wild-type NPM1 with FLT3-ITD
t(9;11)
What 10 genetic abnormalities classify AML as adverse risk?
t(6;9)
t(v;11q23.3) (KMT2A-rearranged)
t(9;22)
t(8;16)
inv(3) or t(3;3)
t(3q26.2) MECOM(EV11)
del5q or -7
Complex karyotype, monosomal karyotype
Mutated TP53
Mutated ASXL1, BCOR, EZH2, RUNX1, SF3B1, SRSF2, STAG2, U2AF1or ZRSR2
How to risk stratify in APL? (low, intermediate, high)
Low: WBC <10, Platelet >40
Intermediate: WBC <10, Platelet <40
High: WBC >10
Most common known RF for development of AML?
Previous RT or chemo (particularly topo II inhibitors or alkylating agents)
less common: benzene, or familial syndromes
At what level of leukemic blasts put you at higher risk of leukostasis?
50k
The diagnostic criteria of requiring 20% blasts for AML is not required in what setting?
Defining cytogenetic abnormalities:
Complex karyotype
5q deletion
Monosomy 7 or 7q deletion
11q deletion
12p deletion
Monosomy 13
17p deletion
Isochromosome 17q
Defining somatic mutations: AXL1, BCOR, EZH2, SF3B1, STAG2, USAF1
What specific type of AML should you think of when told about someone with an AML picture and lots of eosinophils?
AML with inversion 16
AML associated with Down syndrome almost universally has what mutation?
GATA1
Acute Management of new diagnosis of APL
Treat coagulopathy with cryo to keep fibrinogen >150
Transfuse platelets to keep >30
Start ATRA STAT
What is the standard of care for low/intermediate risk APL?
ATRA + Arsenic
What is the standard of care treatment for high risk APL induction?
ATRA + Arsenic + Gemtuzumab
(Or ATRA + Arsenic + Idarubicin)
After starting a patient with APL on induction chemotherapy, on D7 they develop dyspnea, fever, peripheral edema, hypotension, and weight gain. What is the diagnosis?
Differentiation syndrome
How do you manage differentiation syndrome?
Steroids (Dex 10 mg BID)
Hold ATRA if renal/pulmonary failure
-For high risk APL, can consider prophylactic dexamethasone but that’s controversial
How do you monitor response to induction chemotherapy in APL?
RT-PCR for t(15;17)
What to do when, after completing induction chemotherapy for APL, you have a newly positive t(15;17) test?
Repeat test on Bone marrow biopsy in 2 weeks
Treatment for first relapse in APL (2 options)
Chemotherapy + ATRA + Arsenic
Gemtuzumab alone also an option
You have a patient with APL treated with ATRA+Arsenic and obtains CR1. 6 months later they relapse and you are able to achieve CR2 with chemotherapy + ATRA. What is the next treatment?
Autologous SCT
What is the appropriate dose of daunorubicin for induction chemotherapy for AML?
60 mg/m2 for most patients
Use 90 mg/m2 for younger, fitter patients
The addition of gemtuzumab for induction chemotherapy for AML is msot beneficial to which patients?
Favorable risk AML
Most data in core binding factor AML (inv(16) and t(8;21))
Induction chemotherapy for AML with FLT3-ITD mutation?
7+3+Midostaurin
Only if patient is under 60
What is the mechanism of Quizartinib?
FLT-3 ITD mutation inhibitor.
**Will not work for FLT3-TKD
What is the indication for Gilteritinib?
Relapsed/refractory AML FLT3-mutated AML
Standard induction chemotherapy for fit patients with sAML or tAML?
CPX-351
What are four clinical criteria to deem a patient elderly/not-fit for intensive induction chemotherapy?
Age >75
CHF requiring treatment or EF <50%
DLCO <65% or FEV1 <65%
ECOG 2-3
Standard induction chemotherapy for unfit patients with AML
Azacitidine + Venetoclax
Mechanism of action of Venetoclax
BCL-2 inhibitor.
BCL-2 stabilizes mitochondria and prevents activation of proapoptotic proteins. So, inhibiting BCL-2 enables apoptosis
Mechanism of action of Ivosidenib
Inhibits IDH1
3 Indications of Ivosidenib
R/R AML with IDH1 mutation
1st line monotherapy for IDH1 mutated AML for frail individuals
1st line in combination with azacitidine
What is the standard post-remission consolidation treatment for favorable risk AML?
HiDAC
If CD33+, can get gemtuzumab
You have a patient with AML in CR2, what is the best next step?
AlloHCT.
When would you consider an alloHCT for a patient with favorable risk AML?
when they cannot tolerate/complete consolidation chemotherapy, or are MRD+
How do you manage cerebellar toxicity due to cytarabine?
Stop cytarabine and don’t rechallenge
A patient goes through induction chemotherapy with 7+3 + Gemtuzumab. They can’t tolerate HiDAC consolidation and so are going through transplant. What AE are they at higher risk for?
SOS/VOD
Risk stratify according to ELN criteria for AML: t(6;9)
Poor
Risk stratify according to ELN criteria for AML: t(v;11q23.3)/KMT2a rearranged
poor
Risk stratify according to ELN criteria for AML: t(9;22)
poor
Risk stratify according to ELN criteria for AML: t(8;16)
poor
Risk stratify according to ELN criteria for AML: inv(3) or t(3;3)
poor
Risk stratify according to ELN criteria for AML: -5 or del5q
poor
Risk stratify according to ELN criteria for AML: monosomy 7
poor
Risk stratify according to ELN criteria for AML: Mutated NPM1 without FLT3-ITD
favorable
Risk stratify according to ELN criteria for AML: inv(16)
favorable
Risk stratify according to ELN criteria for AML: t(8;21)
favorable
Risk stratify according to ELN criteria for AML: bZIP in-frame mutated CEBPA
favorable
Risk stratify according to ELN criteria for AML: Mutated NPM1 and FLT3-ITD
Intermediate
Risk stratify according to ELN criteria for AML: wild-type NPM1 and FLT3-ITD
intermediate
Risk stratify according to ELN criteria for AML: t(9;11)
Intermediate
Favorable risk AML patient undergoes induction with 7+3+GO. D14 BMBx shows 13% cellularity and 2% blasts. What to do now?
Wait for count recovery and repeat marrow. If increased blasts are still seen, then salvage therapy/transplant search needs to start
Which patients should be considered high risk for CNS disease? (6)
Monocytic differentiated
mixed phenotype
High WBC (>40K) at diagnosis
Extramedullary disease
high risk APL
FLT3 mutations