Multiple myeloma Flashcards
Indication for SRE ppx in myeloma
All myeloma patients regardless of presence of bony disease
1) RF’s for myeloma 2) gender RF
- older age
- African American
- male
- obesity
- FH
- XRT
- *benzene
High risk cytogenetics in myeloma
t(4;14)
t(14;16)
t(14;20)
del 17p
1q gain
Plasma cell leukemia diagnostic threshold
Greater than 20% circulating plasma cells
What is VTD-PACE?
Velcade
Thalidomide
Dexamethasone
Cisplatin
Doxorubicin
Cytoxan
Etoposide
Definition of disease progression in myeloma
Greater than 25% increase in M protein
Drugs to avoid pre-transplant
(alkylating agents), eg cytoxan
and
- prolonged lenalidomide
Dex dosing in myeloma
40 mg once weekly
velcade SE’s
- neuropathy
- thrombocytopenia
- rash
- zoster
Velcade hepatic or renal dose adjustment?
- needs hepatic dose adjustment
- does not require renal dosing
1) carfilzomib SE to know 2) more or less neuropathy than velcade?
- cardiac
- less neuropathy than velcade
ixazomib SE profile vs. velcade
- less neuropathy but more GI toxicity (oral)
Lenalidomide SE profile
- VTE
- myelosuppression
- rash
- fatigue
- secondary malignancy
- teratogenic (hence REMS)
Pomalidomide SE profile
- VTE
- cytopenias
Daratumumab mechanism
CD38 monoclonal ab
Isatuximab mechanism
CD38 monoclonal ab
elotuzumab mechanism
SLAM-F7
elotuzumab SE’s to know
- infusion reactions
- infection risk
selinexor mechanism
oral selective inhibitor of nuclear export
selinexor SE’s
- GI toxicity
- cytopenias
Belantamab mafodotin mechanism
BCMA
Belantamab mafodotin SE to know
- ocular toxicity
CAR-T target in myeloma
- BCMA
CAR-T approved for myeloma
Idecabtagene vicleucel (Ide-cel)
ciltacabtagene autoleucel (Cilta-cel)
Indication for venetoclax in myeloma
t(11;14)
bortezomib mechanism
proteasome inhibitor
Solitary plasmacytoma treatment
XRT
MGUS threshold in terms of paraprotein size 1) serum 2) UPEP
Less than 3 g/dL
Urine protein less than 500 mg in 24 hours
High risk criteria for MGUS
1) M spike greater than 1.5
2) Non-IgG M protein
3) Abnormal FLC ratio (>1.65 or <0.26)
Smoldering criteria
M protein greater than 3.0 or plasma cells greater than 10% (but less than 60)
*or urine greater than 500
without end organ damage
Risk tool and interpretation for smoldering myeloma progression to myeloma 2) what is considered high risk
20/2/20
2 = M spike >2
20 = plasma cells >20
20 = FLC >20
*IF >2 of above, this is high risk smoldering
SLiM criteria
S = >60% plasma cells in marrow
L = FLC >100
M = MRI w/ lesion >5mm
CRAB criteria
Calcium >11
R = Cr >2.0 or CrCl <40
hgb <10
Bone lesion on any imaging
Clinical significance of t(11;14) translocation
Role for single agent venetoclax
First step and second step in thinking about induction therapy for myeloma
- Decide if patient is transplant eligible or ineligible
- IF eligible, then need quadruplet regimen regardless of cytogenetics
IF ineligible, triplet
Transplant eligibility criteria in myeloma
age <77 (Assuming not 80 and running marathons but moving away from HCT…) AND no decompensated cirrhosis AND no NYHA3/4 CHF AND EF>40% AND ECOG 0-2
Clinical benefit of lenalidomide maintenance
PFS, not OS
Board answer for induction therapy for fit pt in early 80s
VRD, not len/dex
Preferred induction at UMass for transplant ineligible
D-VRD (Preferred at Umass for transplant ineligible as well, deepen response, not that much added toxicity)
What factors are incorporated into IMPEDED VTE risk score for thrombprophylaxis in myeloma
- BMI
- use of IMID
- use of dex
- prior VTE
Risk of progression of smoldering myeloma
10% per year for 5 years, 3% per year for next 5 years, and 1% per year thereafter
What does R-ISS staging system include?
- albumin
- beta-2
- LDH
- FISH panel on BMB
*The Revised system incorporated FISH abnormalities
How does jaw osteonecrosis present?
area of exposed bone in maxillofacial region that does not heal
Management of osteonecrosis
- oral hygiene
- topical antibiotic mouth rinses
- systemic antibiotics
Additional RF’s for progression in smoldering myeloma incorporated into the PETHEMA model
- ## immunoaresis
Non-IgM MGUS risk of progression
0.5% per year
LIght-chain MGUS risk of progression
0.3% per year
Low-intermediate risk of progression over 20 years
21%
high-intermediate risk of progression over 20 years
37%
high risk of progression MGUS over 20 years
58%
Low risk of progression over 20 years
5%
When BMB + PET is indicated by the books for MGUS pts
anything above low risk (so low-intermediate and higher)
Percentage of smoldering patients that will progress to myeloma within the first 5 years
50% (10%/year)
Additional RF’s for progression from smoldering to myeloma incorporated into the PETHEMA model
> 95% abnormal plasma cells by flow
- immunoparesis
Clinical benefit of len/dex for smoldering
- demonstrated OS but controversial since MRI not included, some may have actually had myeloma
Stringent CR vs CR in myeloma
stringent = NO plasma cells in marrow
CR = <5% plasma cells in marrow
VGPR in myeloma
> 90% reduction of M protein
Clinical benefit of upfront vs. delayed transplant
PFS alone
Clinical benefit of len maintenance
OS
SE’s of bispecifics in myeloma
- CRS
- infectious risk
Bispecifics approved for myeloma
- teclistamab
- talquetamab
- elranatamab