Introduction
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Acute gout is common inflammatory arthritis in the adult US population.
Gout results from inflammation caused by precipitation of uric acid crystals from supersaturated extracellular fluid.
The ACR guidelines recognize NSAIDs, corticosteroids, and colchicine as first-line monotherapy for the treatment of gout.
Pharmacology
Properties Naproxen Prednisone Triamcinolone Colchicine Dose 750 mg orally followed by 250-500 mg every 8 hours until the attack has subsided 40 mg/day for 3 to 5 days, with or without a taper) 20-40 mg for the knee and 5 to 10 mg for smaller joints 1.2 mg PO x 1 followed by 0.6 mg an hour later* Administration Oral Oral Intra-articular Oral PK/PD Onset: 0.5- 1 hr Duration: up to 12 hrs Renal Excretion: 95 % Onset: 1-2 hr Elimination ½ life 2-3 hr Renal Excretion: >95% Onset: 12-24 hr Duration: up to 30 days Renal Excretion: 75% Onset: 0.5-2 hr Elimination ½ life 27-31 hr Renal Excretion: 45-65% Adverse Effects Edema, GI discomfort, headache, dizziness, renal dysfunction Hypertension, fluid retention, hyperglycemia, disturbance in mood Headache, injection site pain, influenza-like illness, pharyngitis GI discomfort, diarrhea, nausea, neuromyopathy, and vomiting Drug Interactions and warnings Consider against in patients with high bleeding risk, peptic ulcer disease, heart failure, dehydration, and renal impairment. Warning with oral contraceptives, CVD, diabetes, GI problems, psychiatric disorders, and live vaccines Warning if considering joint sepsis, and in patients with diabetes, CVD, GI problems or psychiatric disorders Drug interaction with CYP3A4 or P-glycoprotein inhibitors. Warning in patients with hematologic, renal, and hepatic insufficiency Location in GHS Zone 1,2, 3 + Trauma Zone 1,2, 3 + Trauma Main Inpatient Pharmacy Zone 1,2, 3 + Trauma
Evidence
Author, year Design/ sample size Intervention & Comparison Outcome Zhang, 2014 Observation al, n=60 IM betamethasone 7 mg x 1 vs diclofenac 75 mg BID x 7 days Betamethasone > diclofenac pain reduction at day 3 Betamethasone = diclofenac pain reduction at day 7 Betamethasone< diclofenac adverse effects Daoussis, 2013 Observation al, n=181 IM ACTH 100 units 78% of patients improved after one day after a dose Minimal impact on blood pressure and serum potassium Elevation in fasting blood sugar for 24 hours Terkeltaub, 2010 RCT, n=184 colchicine 1.8 mg total over 1 hour vs colchicine 4.8 mg total over 6 hours vs Placebo Low-dose colchicine and high dose colchicine = comparable efficacy Low-dose colchicine safety profile = same as placebo Man, 2007 RCT, n=90 prednisolone 30 mg/APAP 1g vs indomethacin 50 mg/APAP 1 g Prednisolone/APAP is as effective as oral indomethacin/acetaminophen in relieving pain but ↓ adverse effects. Siegel, 1994 RCT, n=31 IM adrenocorticotropic hormone 40 IU vs IM triamcinolone acetonide 60 mg Resolution of all symptoms occurred at an average of 8 days for both groups. No adverse reactions were noted in either group 11 reinjections in the ACTH group vs 5 reinjections in the triamcinolone acetonide group Alloway, 1993 RCT, n=27 Indomethacin 50 mg TID Vs IM triamcinolone acetonide 60 mg Resolution of all symptoms occurred at 8 days for a patient taking indomethacin vs 7 days with triamcinolone Maccagno ,1991 RCT, n=61 etodolac 300 mg BID x 7 days vs naproxen 500 mg BID x 7 days Significant in both treatment groups at each time intervals 93-97% of patients report improved condition treated with either agent
Conclusions
References
1. Micromedex [Electronic version].Greenwood Village, CO: Truven Health Analytics. Retrieved September 6, 2018, from http://www.micromedexsolutions.com/ 2. Khanna D, et al. 2012 American College of Rheumatology guidelines for the management of gout. Arthritis Care Res 2012;64:1447-1461. 3. Wilson L, et al. Pharmacotherapy. 2016 Aug;36(8):906-22 4. Daoussis D, et al. Joint Bone Spine. 2013 May;80(3):291-4. 5. Terkeltaub RA, et al. Arthritis Rheum. 2010 Apr;62(4):1060-8 6. Man CY, et al. Ann Emerg Med. 2007 May;49(5):670-7. 7. Siegel LB, et al. J Rheumatol. 1994 Jul;21(7):1325-7. 8. Alloway JA, et al. J Rheumatol 1993; 20:111. 9. Maccagno A, et al. Curr Med Res Opin. 1991;12(7):423-9. Monotherapy -NSAID -Systemic Corticosteroid -Colchicine Combination Therapy -Colchine + NSAID -Colchicine+ Oral Corticosteroid -Intraarticular steroid +oral colchicine, NSAID, or corticosteroid Elderly +/- Multiple Comorbidities -Corticosteroids > NSAIDS (particlarly indomethacin) or Colchicine Renal insufficiency -Intraarticular, oral, or parenteral glucocorticoids NPO -ACTH
Tags:
NSAIDs corticosteroids colchicine ACR
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