Rheumatology Flashcards
What is the MC type of OA?
Primary=Idiopathic
Define Secondary OA
associated with a known cause
What is the primary objective of medication therapy in OA?
Pain Relief
Based on efficacy and safety, what is the initial pharmacologic recommendation in the treatment of OA?
Acetaminophen
CI to NSAIDs
- Renal patients
- Liver failure
- CHF
- Hx GI bleed
- Taking blood thinners
What can you consider to reduce GI toxicity with the use of NSAIDs?
- Nonacetylated salicylate: Choline magnesium trisalicylate
- COX-2 selective inhibitors
- Addition of Misoprostol or PPI
What can you consider to reduce CV risk with the use of NSAIDs?
Naproxen
What is recommended for pt’s older than 75 to reduce the risk of systemic toxicity?
Topical NSAIDs= Ketoprofen
What is activated in the pathogenesis of RA?
- Macrophages
- T-cells
- Fibroblast
Effects of activated macrophages, T-cells and fibroblast
- Tissue destruction
- Increased blood flow
- Cellular invasion of synovial tissue and joint fluid
What is drug therapy targeting in RA?
Overall goal of drug treatment?
IL-1
IL-6
IL-17
*Control inflammation!=”Treat to Target”
What is first line treatment in RA? When do you want to start drug treatment?
DMARDs: Methotrexate
Start w/in 3 months of dx! Early aggressive tx may prevent irreversible joint damage/disability
When should NSAIDs and corticosteroids be considered in RA treatment?
Adjunctive therapy early in course of treatment and as-needed if sx’s are not adequately controlled w/ DMARDs
Drug treatment in RA pt’s with less active dz and good prognostic indicators
Oral agents as monotherapy
Drug treatment in RA pt’s with high dz activity and/or poor prognostic indicators
Combination therapy and biologics to suppress inflammation:
- Methotrexate-hydroxychloroquine
- Methotrexate-leflunomide
- Methotrexate-sulfasalazine
What does ACR recommend/endorse?
- Triple combination:
Methotrexate + hydroxychloroquine + sulfasalazine - Use of Anti-TNF biologics in pt’s w/ early dz of high activity and presence of poor prognostic factors, regardless of previous DMARD use
List the ANti-TNF drugs
- Etanercept
- Infliximab
- Adalimumab
- Certolizumab
- Golimumab
Methotrexate MOA
Anti-inflammatory properties:
- Inhibits cytokine production
- Inhibits purine biosynthesis
- stimulate release of adenosine
What would you want to consider supplementing with in the use of Methotrexate? why?
Folic acid
Folic acid antagonist