Multiple Sclerosis Flashcards
What type of disease is MS
Chronic autoimmnune, inflammatory disease that destroys myelin sheath and impairs the ability to send electrical impulses
What is though to have an effect on MS
Higher Vitamin D levels reduce the disease activity in MS patients
The Epstein-Barr virus triggers MS in
How is MS graded on a scale and how is severity determined?
On the Kurtzke scale and low is better
What are some symptoms of MS?
muscle weakness, blurry vision, bladder problems, cognitive disturbances, sensitivity to heat
How do you diagnose MS?
2 documented clinical exacerbation separated by time and space
2 distinct MRI lesion separated by time and space (DIS - on areas known to be affected by MS)
What MRI findings are consistent with MS?
- 4 white matter lesions (>3mm)
- 3 white matter lesions, 1 periventricular (>6mm)
- Ovoid lesions perpendicular to ventricles
- Open ring appearance gadolinium enhancements
- Corpus callosum lesions
How can you describe CIS
1st episode of neuro symptoms lasting 24 hours due to inflammation and demyelination.
Patient may or may not develop MS
What is the most common form of MS?
Relapsing Remitting Multiple Sclerosis
How can you described RRMS?
Worsening or new onset of symptoms lasting >48 hours contrasted by symptoms free periods (remission)
How can you describe SPMS?
Progression of RRMS and is steadily progressing with or without clear-cut relapses
How can you describe PPMS?
Rare with a steady decline without clear cut relapses. Meds also aren’t generally effective at this point.
How can you describe PRMS?
Rare with steady progression with clear-cut MS exacerbations. Can use steroids but disease will still progress.
What is the treatment for MS?
No known cure. Can only treat symptoms
How to treat symptoms of an acute severe attack?
- Methylprednisolone
- Corticotropin (Acthar gel)
- H2 blocker/PPI (ulcer prophylaxis)
- Monitor blood glucose
- Watch for infection
What are your Original ABCR Injectables
Interferon Beta 1a
- Avonix
- Rebif
- Plegridy
Interferon Beta 1b
- Betaseron
What Interferon Beta used for?
Relapsing forms of MS: CIS, RRMS, active SPMS
What are the interferon beta side effects?
- Flu like symptoms!!!!!
- Injection site reaction
- Depression
- Myalgia
- Mayasteria
What is Glatiramer Acetate?
may alter T cell activation/differentiation.
Available as Copaxone
What is Copaxone used for?
Relapsing forms: CIS, RRMS, actve SPMS
What are the side effects of Copaxone?
Injection site reaction
Transient flushing
Chest tightness/pain
What are the monoclonal antibodies used ins MS?
- Natalizumab
- Alemtuzumab
- Daclizumab
- Ocrelizumab
- Ofatunumab
What does Natalizumab do?
Prevent transmigration of leukocytes across endothelium into inflamed parenchymal tissues
*crossing BBB
What is Natalizumab also known as?
Tysabri
How is Natalizumab dosed?
300 mg IV every 4 weeks
What is Natalizumab used for?
Relapsing forms: CIS, RRMS, active SPMS
What is fatal side effect of Natalizumab?
PML - rare, fatal viral infection that is activated by the latent JC virus and is demyelinating
What program is Natalizumab under and for what?
TOUCH prescribing program due to PML
Who must be registered under the TOUCH program?
Patients
Prescribers
Infusion centers
What are the side effects of Natalizumab?
- Infusion site reaction
- Resp Tract Infection
- Urinary Tract Infection
- Cholelithiasis
- Depression
- PML
What does Alemtuzumab do?
Decrease of T cell circulation
What is Alemtuzumab indicated for?
Relapsing forms of MS and reserved for inadequate response to 2 or more medications.
What should you do to initiate Alemtuzumab?
Premedicate with corticosteroids for the first 3 days and antiviral prophylaxis (herpes) on the first day till 2 months post alemtuzumab
What is the side effect of Alemtuzumab?
- Autoimmnue Thyroid Disorder (GRAVES)
- Rash
- Neuro problems
- Musculoskeletal pain
- Shortness of Breath
What is Alemtuzumab Black Box Warning?
autoimmnue condition: thrombocytopenia and antiglomerular basement membrane disease
Infusion Reaction
Malignancy
How should you monitor Alemtuzumab?
Monitor TSH levels at baseline and every 3 months
Monitor CBC w/ differential, SCr, urinalysis periodically for 48 mos post alemtuzumab
Baseline and yearly skin exams
ECG prior each treatment
Protocol for initiating Alemtuzuamb
Admin in setting with appropriate equipment and personnel (anaphylaxis or infusion reaction) - life threatening
Observe for 2 hours