RA meds Flashcards
What is the cellular cause of RA? What type of hypersensitivity is this?
T cell activation
Also, immune factor stage
What are the three stages of RA?
Initiation stage
Amplification
Final stage (chronic inflammation)
What is the antibody that is elevated in RA? What is this?
Rheumatoid factor
IgM to the Fc of IgG
What are the chemokines that are released in RA? What do these cause?
TNF-a
IL1
IL6
Inflammation and fibrosis
What is the first line treatment for RA?
NSAIDs (ASA, acetaminophen, indomethacin, IBU etc)
What is the role of glucocorticoids in RA?
Reduce the inflammation and cause dramatic improvement in RA
What are the disease -modifying anti-rheumatic drugs (DMARDs)? MOA?
Drugs that reduce inflammation, improve symptoms, and slow bone damage
MOA unknown
Do NSAIDs affect the course of RA? What about DMARDs?
No for NSAIDs
Yes for DMARDs
What is the timeframe of onset for DMARDs?
slow (6 weeks to 6 months)
What are the two different DMARDs?
Synthetic and biologic
What is the MOA of methotrexate? What is the effect in RA treatment?
Inhibits AICAR transformylase to increase extracellular adenosine and inhibit T cell activation
First line treatment for RA
What is the MOA of cyclosporin?
Inhibits IL1 and IL2 receptor production
What is the MOA of cyclophosphamide?
Crosslinks DNA to prevent cell replication
What is the MOA of azathioprine?
Interferes with nucleic acid metabolism and synthesis, and inhibits cell proliferation
Suppressed B and T cell function
What is the MOA of Leflunomide? What is its role in RA treatment?
Inhibits ribonucleotide synthesis and causes cell cycle arrest
First agent for RA
What are the antimalarial agents that are used to treat RA? MOA?
Chloroquine and hydroxychloroquine
MOA unknown
What are the biological DMARDs?
Organic compounds made by living cells modify biologic responses
What are the two drugs that are anti-TNF-a antibodies?
Etanercept
Infliximab
What is the MOA of rituximab?
B cell depleting agent
What is the MOA of abatacept?
T-cell costimulation inhibitor
What is the MOA of Anakinra?
IL-1 cytokine inhibitor