Appendix 1 Common Disease Modifying Anti-Rheumatic Drugs used in treating autoimmune diseases (DMARD’s) DRUG/PK/PD TOXICITIES /SE TO MONITOR BASELINE MONITORING ROS/ EXAM LABORATORY/MONITORI NG Salilcylates, NSAIDs PK: liver, CYP450:2C9 substrate PD: Inhibits cyclooxygenase, reducing prostaglandin and thromboxane synthesis GI ulceration, Kidneys CVD disease CBC, Creatinine AST, ALT Dark/black stool, dyspepsia, abd. pain, edema CBC’s, LFT’s, Creatinine q 6 months Hydroxychloroquine DOSE: 200mg BID (or less than 6.5mg/kg per day) PK: Liver, CYP450:unknown Half-life 35-50 days PD: Concentrates in acidic cytoplasmic vesicles, raises pH in lysosomes &B may interfere with the processing of autoantigenic peptides Macular damage GI upset Photosensitive rash Visual changes, fundoscopy w/field of vision CBC, Creatinine LFT’s, q 6 months with Q 6 month to yearly field of vision exam. Usually take up to 3 months to demonstrate any positive effect Azathioprine DOSE: 50mg QD up to 2.0-2.5 mg/kg PK: liver, erythrocytes, CYP450. Half-life 5hr PD: inhibits T lymphocytes Myelosuppression, hepatic toxicity, lymphoproliferative disorders Leucopenia GI upset Increases risk for shingles Increase risk for infection Hold if active infection CBC, platelets, creatinine, AST/ALT May consider testing ofr TMPT enzyme activity to prevent toxicity GI upset Leucopenia Decreased sperm count CNS SE CBC, LFT’s Consider screen for G6PD deficiency Sulfasalazine DOSE: 500mg QD up to max of 3000mg/day PK : GI tract, liver, CYP450 1 None, unless pt. is >40y/o or hx of eye ds Preg. B, D in 3rd trimester Preg C Symptoms of myelosuppression CBC, platelets, creatinine, AST/ALT q 4 months, monitor for infection Allopurinol can increase toxcitiy Preg D Rash, GI symptoms of intolerance CBC, LFT’s Q 8-12 weeks early on. Then Appendix 1 Common Disease Modifying Anti-Rheumatic Drugs used in treating autoimmune diseases (DMARD’s) DRUG/PK/PD TOXICITIES /SE TO MONITOR Half-life 7.5 -14 hrs PD: block cyclooxygenase and inhibit prostaglandin production to produce antiinflammatory effects Fever, rash and elevated LFT’s Hold if active infection Corticosteroids oral DOSE: < or = to 10mg 30mg of prednisone or equivalent QD. Should only be used for flares and bridging therapy PK: liver, CYP450:3A4 substrate Half-life varies on drug PD: possibly inhibits inflammatory cytokines Hypertension, hyperglycemia Increases risk for shingles Increases risk for infection Increase risk for osteoporosis Increase risk for cataracts Mood alteration Weight gain Adrenal insufficiency B/P, CMP, DXA Leflunomide DOSE 10-20mg per day PK: liver, GI tract, CYP450 Half life 15 -18 days PD: inhibits pyimidine synthesisvia dihydroorotate dehydrogenase inhibition, resulting in immunomodulatory and antiproliferative activity Myelosuppression, Increase risk for infection Increase risk for shingles Hold if active infection Methotrexate Oral or SQ DOSE: titrated by symtpoms and labs. Usual start dose is 7.5mg to 10 Myelosuppression, hepatic toxicity and/or fibrosis, cirrhosis, pulmonary infiltrates/fibrosis Increase risk for infection 2 BASELINE MONITORING ROS/ EXAM LABORATORY/MONITORI NG Q 3 to 4 months Preg B, trimester specific B/P, weight gain, SOB, polyuria, polydipsia, edema, visual changes Urinalysis for glucose yearly Screening for Hep B & C prior to start. Symptoms of myelosuppression CBC, Creatinine, liver enzymes every 8 to 12 weeks (q 2 months) Preg X CBC, Hepatitis B and C serology, LFT;s albumin, bilirubin and creatinine. Chest Xray with in the last year Symptoms of myelosuppression, SOB, N/V, oral ulcers, hair loss. CBC and platelet count LFT’s, Creatinine and albumin Q 8 weeks. Monitor for infection Preg X Preg B Appendix 1 Common Disease Modifying Anti-Rheumatic Drugs used in treating autoimmune diseases (DMARD’s) DRUG/PK/PD TOXICITIES /SE TO MONITOR BASELINE MONITORING mg once weekly. Max is 25mg once weekly. PK: liver, intracellular, GI tract (oral); CYP450 Half life 3 -10 hrs based on dose PD: immunosuppressant: inhibits dihydrofolate reductase; inhibits lymphocyte proliferation (folate antagonist) Increase risk for shingles Daily supplement with folic acid required Hold if active infection TB test 3 ROS/ EXAM LABORATORY/MONITORI NG Appendix 1 BIOLOGICS B and T cell modulators DRUG/PK/PD Abatacept DOSE: IV dose is weight based, q 4 weeks. SQ is 125mg SQ weekly PK:CYP450:unknown Half life: 13.1-14.3 days PD:selectively modulates T cell activation, altering immune response Rituximab DOSE: weight adjusted PK:CYP450:unknown Half life: 18-32 days PD: binds to Blymphocyte CD20 surface antigens 4 TOXICITIES / SE TO MONITOR BASELINE MONITORING ROS/EXAM LABORATORY / MONITORING S/S of immune suppression Hold if active infection Hep B & C screen, TB screen, immunization status. S/S of infection or malignancy CBC Preg C S/S of immunesuppresion Fatal PML Serious/fatal infusion rxn and/or mucocutaneous rxn. Hep B reactivation Caution if malignancy risk Hold if active infection Hep B & C screen, TB screen, immunization status Pregnancy status, and birth control measures during tx and 12 months after S/S of infection or malignancy CBC Preg C Appendix 1 BIOLOGICS TNF alpha Inhibitors DRUG/PK/PD Infliximab Enteracept Adalimumab Golimumab Certolizumab pergol DOSE: Varies by drug and route PK: CYP450:none PD: inhibits tumor necrosis factor alpha, reducing inflammation and altering immune response. 5 TOXICITIES / SE TO MONITOR S/S of immune suppression S/S of melanoma Worsening CHF Hold if active infection BASELINE MONITORING Hep B & C screen, TB screen, immunization status. ROS/EXAM S/S of infection or malignancy Increased risk for lymphoma and melanoma CHF Drug induced lupus LABORATORY / MONITORING CBC Preg Cat.B