Journal List > J Rheum Dis > v.21(6) > 1064149

Koo, Kim, and Chin: A Case of High dose Colchicine with No Efficacy in a Patient with Chronic Kidney Disease Taking Rifampicin

Abstract

A 54-year-old male on chronic hemodialysis, who was taking rifampicin for tuberculous lymphadenitis, was admitted for an acute gout attack. After administrating 3.6 mg of colchicine for 2 days, symptoms began to alleviate. Despite the relatively high dosage in this end-stage renal disease patient, there were no adverse effects, such as diarrhea, vomiting, or myopathy. After 1 and 6 hours of 0.6 mg colchicine administration, serum colchicine was 1.3930 ng/mL and 0.2464 ng/mL, respectively. These values were lower than the mean concentrations in 13 other patients with chronic kidney disease (CKD) after the same time intervals (4.34±0.56 ng/mL and 1.49±0.15 ng/mL, respectively). As rifampicin is an inducer of cytochrome P450 3A4, metabolism of colchicine had increased. When taking colchicine and rifampicin simultaneously, a higher colchicine dose may be needed for the treatment of acute gout in patients with CKD.

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Figure 1.
Time dependent serum level of colchicine. In 13 patients, the serum colchicine concentration curve was drawn according to C0, C1 and C6. We assumed that Tmax was an hour after administration. The lowest line shows the result of the case-study patient. Tmax is the time after administration of a drug when the maximum plasma concentration is reached.
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Table 1.
Laboratory results on day of admission and 1 day before discharge
  Admission 1 day before discharge
WBC count, /mm3 12,580 11,140
Hemoglobin, g/dL 10.4 9.8
Hematocrit, % 34.0 32.1
Platelet, /mm3 143,000 205,000
Total protein, g/dL 6.2 7.8
Albumin, g/dL 2.6 3.2
Total bilirubin, mg/dL 0.5 0.3
ALP, IU/L 61 89
AST (GOT), IU/L 13 19
ALT (GPT), IU/L 2 5
Total cholesterol, IU/L 112 114
Calcium, mg/dL 8.6 8.5
Phosphorus, mg/dL 3.4 4.7
Uric acid, mg/dL 7.7 9.9
CRP, mg/dL 16.5 4.7
BUN, mg/dL 44 37
Creatinine, mg/dL 7.6 9.6

WBC: white blood cell, ALP: Alkaline phosphatase, AST: aspartate aminotransferase, ALT: alanine aminotransferase, BUN: blood urea nitrogen, CRP: C-reactive protein.

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