Lecture 1 - MS/MG Flashcards

1
Q

which kind of MS is most common

A

Relapsing-remitting MS (RRMS)
like 85% of pts

can progress to secondary progressive MS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Kurtzke EDSS scale

A

0-10

Lower = less disability
Higher = more disability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Relapse/exacerbation definition

A

development of new or recurring symptoms lasting at least 24 hours and separated from previous attack by atleast 1 month

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Treatment of acute exacerbations MS

A

Methylprednisolone
Dose: 500-1000mg IV daily
Duration: 3-7 days, improve in 3-5 days
ADE: sleep disturbance, metallic tase, BG,GI upset

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What to give if patient refractory to steroid MS treatment?

A

Plasam exchange (PLEX) = every other day X 7 treatments
IVIG

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

“Safety; Tried and True Approach” meds

A

Interferons 1b n 1a, not much clinical difference

1a might be more potent/stable so weekly dosing n less inj site reacionts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Tecfidera (Dimethyl-Fumarate) MOA:

A

nicotinic acid receptor agonsit/activator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Tecfidera (Dimethyl-Fumarate) Dosing

A

120mg DR PO BID

inc to 240mg DR BID after 7 days
dont crush, swallow whole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How to decrease flushing with Tecfidera (Dimethyl-Fumarate)

A

Take with food
consider non-EC ASA of < 325mg 30min prior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Tecfidera (Dimethyl-Fumarate) Adverse effects

A

Lympgocytopenia
LFTs
Flushing
GI after 1 month
Anaphylaxis
Angioedemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Interferon B-1b Brand names

A

Betaseron
Extavia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Interferon B-1b dose

A

titrate to 250mcg
Given SC every other day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Interferon B-1b storage

A

doesnt req fridge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Avonex info

A

Interferon B-1a

Dose:30mcg IM weekly
Storage: Fridge or RT 7 days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Rebif info

A

Interferon B-1a

Dose:22 or 44mcg SQ 3 times weekly
Storage: Fridge or RT 30 days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Plegridy info

A

Interferon B-1a

Dose: 125 mcg SQ every 14 days
Storage: Fridge, RT 30 day, protect from light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Interferon warnings

A

Liver dysfunction
Worsening Depression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Interferon adverse effects

A

Inj site redness
swelling
Flu-like symptoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Interferon monitoring

A

BL: Blood count, Platelets, LFTs

continue at 1 month, Q3 for 1 yr, then Q6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Interferon counseling

A

Body temp at injection

Rotate inj site, apply cold pack before/after, hydrocortisone cream

Flu-like symptoms = Last ~24hrs, give APAP or NSAIDs before/after inj

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Glatiramer Acetate (Copaxone) Dose

A

20mg SQ daily or 40mg SQ 3 times weekly (start 1-2 days after 20mg dose)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Glatiramer Acetate (Copaxone) Adverse effects

A

10% transient chest tightness
Flushness n dyspnea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Glatiramer Acetate (Copaxone) Storage

A

Fridge
RT for 30 day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Glatiramer Acetate (Copaxone) place in therapy

A

1st or 2nd line depending on pt factors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Tecfidera (Dimethyl-Fumarate) Monitoring
screen TB CBC D/c therapy if lymphocyte count < 0.5 X 10^9 > 6 month BL LFTs, D/c if liver injury suspected
26
Monomethyl-Fumarate (Bafiertam) Dosing
95mg DR PO BID for 7 days, then 2 caps (190mg) DR BID **swallow whole, dont crush**
27
Monomethyl-Fumarate (Bafiertam) Adverse effects
Lympgocytopenia LFTs Flushing GI after 1 month Anaphylaxis Angioedemia
28
How to decrease flushing with Monomethyl-Fumarate (Bafiertam)?
Take with food consider non-EC ASA of < 325mg 30min prior
29
Diroximel-Fumarate (Vumerity) Dosing
231mg DR PO BID for 7 days, then inc to 2 cap (462mg) DR PO BID Avoid w/ high-fat, high calories meal/snack, alc
30
Diroximel-Fumarate (Vumerity) Adverse effects
Less chance of GI (1% vs 5% Tecfidera)
31
Teriflunomide (Aubagio) Dosing
7-14mg PO QD
32
Teriflunomide (Aubagio) Black Box warning
Hepatotoxicity Pregnancy/women use reliable Birth control
33
Teriflunomide (Aubagio) DI
Warfarin = dec INR Avoid Live vaccines Rosuvastatin max dose = 10mg
34
Teriflunomide (Aubagio) Adverse effects
shit load
35
Teriflunomide (Aubagio) Accelerated elim procedure
Cholestyramine 8gram Q8H X 11 days or activated charcoal 50gram Q12 X 11 days days dont need to be consecutive
36
Fingolimod (Gilenya) Dose
0.5mg QD PO > 40kg 0.25mg QD PO < 40kg
37
Fingolimod (Gilenya) Adverse effects
Headache infections diarrhea QTc prolong* Macular edema* HTN* cough LFT elevation
38
Fingolimod (Gilenya) Monitoring
observe 6hrs after 1st dose for Bradycardia w/ hourly HR/BP inc risk of major congenital malformations women on BC during and 2 months after med, same rules for live vaccines
39
Fingolimod (Gilenya) Safety Concerns
Rare cases of PRES CI in pts w/ preexisting Heart conditions, stroke, or on class Ia or III anti arrhythmic meds
40
Siponimod (Mayzent) dosing depends on.....
CYP1C9 Genotype
41
Siponimod (Mayzent) Dosing if 1*/3* or 2*/3* alleles....
0.25mg daily on Day 1+2, 0.5mg Day 3, 0.75mg Day 4, and 1mg after **other alleles, dosing inc to 2mg at end of titration**
42
Siponimod (Mayzent) place in therapy
Approved for RRMS, active SPMS and clinically isolated syndrome
43
Siponimod (Mayzent) Adverse effects
pretty much same as Fingolimod (Gilenya)
44
Siponimod (Mayzent), if titration dose missed then....
if more than 24hrs, treatment needs to be reinitiated with Day 1 of the titration regimen
45
Which CYP2C9 Genotype is Siponimod (Mayzent) CI in?
CYP2C9 3*/3*
46
Siponimod (Mayzent) Considerations
also avoid live vaccines during n 1 month after monitor if history of bradycardia for 1st dose women also need to be on BC during and 10 days after
47
Siponimod (Mayzent) Safety concerns
Rare PRES Rare PML CI w/ Heart conditions, Stroke, TIA
48
Ozanimod (Zeposia) Dosing
Day 1-4 = 0.23mg PO QD Day 5-7 = 0.46mg PO QD Day 8+ = 0.92mg PO QD
49
Ozanimod (Zeposia) ADE
Upper Resp tract infection Orthostatin HTN
50
Ozanimod (Zeposia) CI
MI, unstable angina, stroke, TIA, HF hospitalization, C3-4 HF in last 6 months, untreated severe sleep apnea, dont use with MAOI
51
Ozanimod (Zeposia) DI
MAOI SSRI, SNRIs, TCA, opioids Strong CYP2C8 inducers/inhibitors
52
Ponesimod (Ponvory) Dosing
starts at 2mg QD X 2 days, day 15 is 20mg QD maintenance dose Monitoring 1st dose if Hr < 55BPM
53
Cladribine (Mavenclad) dosing
Cumulative dose of 3.5mg/kg PO and divided into 2 txm courses (1.75mg/kg each) Each txm course is divided into 2 txm cycles *Dont admin cladribine during following 2 yrs after therapy* ** Not 1st line, for those who cant tolerate others**
54
What drugs to avoid with Cladribine (Mavenclad)
avoid antiviral or antiretroviral drugs ( Lamivudine, ribavirin, zidovudine) separate other oral drugs by atleast 3hrs during the 4-5 day treatment cycles
55
Cladribine (Mavenclad) Black box warning
May inc malignancy, CI if currently have CI in preg women and men/women not on effective contraceptives
56
Cladribine (Mavenclad) Monitoring
CBC/LFT Cancer screen Preg test Latent infections MRI to exclude PML < 200 Lymphocyte count at months 2/6...herpes prophylaxis considered if < 200
57
Kesimpta (ofatumumab) dosing
20mg SC injection weekly for 3 doses, then 20mg Q monthly
58
Kesimpta (ofatumumab) CI
Active HBV infection careful if active infection, recent vaccine admin
59
Alemtuzumab (Lemtrada) Dosing
IV infusion 12mg IV QD X 5 days (60mg total) 12mg QV X 3 days 12months after initial (36mg)
60
Alemtuzumab (Lemtrada) place in therapy
pts w/ relapsing form of MS or inadequate response to 2+ MS therapies
61
Alemtuzumab (Lemtrada) monitoring
Has REMS program Monitor: Infusion reaction, CBC/Scr/UA QM n 48M after
62
Alemtuzumab (Lemtrada) HSV prophylaxis
acyclovir 200mg BID > 28days after last infusion or until CD4 count > 200 (whichever is last)
63
Alemtuzumab (Lemtrada) PCP prophylaxis
Bactrim SS QD, during txm n several weeks after
64
Ocrelizumab (Ocrevus) dosing
300mg IV X 1, then 300mg IV X 1 2 weeks later (max 180ml/hr, >2.5hr infusion) then 600mg IV every 6 months (max 200ml/hr, >3.5hr infusion) premed and monitor 1hr post infusion
65
Natalizumab (Tysabri) dosing
300mg IV q4 weeks
66
Natalizumab (Tysabri) info
REMS Black box for PML monitor infections, LFTs
67
screening for JC virus is useful in....
screening for PML
68
Ublituzimab (Briumvi) Dose
IV infusion 1st dose = 150mg IV over 4hrs 2nd dose = 450mg IV over 1hr, 2 weeks after first Later doses = 450mg over 1hr 24weeks after 1st infusion and every 24 weeks after premedicate
69
Ublituzimab (Briumvi) info
dec vaccine efficacy screen for Hep B
70
Dalfampridine (Ampyra) can help...
inc walking speed in pts by 25%...clinically meaningful?
71
Dalfampridine (Ampyra) dosing
10mg BID ~ 12hr apart
72
Dalfampridine (Ampyra) CI
Seizue history Crcl < 50, 51-80 = inc seizure risk
73
Dextromethorphan & Quinidine (Nuedexta) dosing
Days 1-7 = 1 QAM Days 8+ = 1 BID (AM/PM) dont double if missed, take ~12hr apart used for random laughing/crying/etc (Pseudobulbar effect)
74
Dextromethorphan & Quinidine (Nuedexta) SE + DDI + CI
Digoxin = monitor lvls Cardiac abnormalities
75
Class 1 vs 5 for MS
1 = less severe 5 = most severe
76
Pyridostigmine (Mestinon) Info
1st line MS Dosing highly individualized PO = bunch of forms, IV/IM = 2mg Q2-3hr or 1/30th PO dose in crisis
77
Pyridostigmine (Mestinon) Side effects
Salivaton urinary incontinence diarrhea sweating can manage with Glycopyrrolate or Hyoscyamine TID
78
Pyridostigmine (Mestinon) caution
start low n titrate
79
Meds that can worsen or unmask MG
Fluoroquinolones Macrolides Aminoglycosides Beta-blockers Statins
80
Immunomodulating Therapies
add after AChE inhibitor Azatthioprine = 1st choice, delayed onset of action....start with red for faster effect
81
Immunomodulating Therapies to avoid
CI to Glucocorticoids Liver disease = avoid Azathioprine Renal disease = avoid cyclosporine Leukopenia = avoid azathioprine & mycophenolate