• K Fujii, Y Kanno, K Konishi, and N Ohgou.
• Department of Dermatology, Kobe City General Hospital, Minatojima-Nakamachi, 4-6, Kobe 650-0046, Japan.
• J. Dermatol. 2001 Apr 1; 28 (4): 200-7.

AbstractWe report the result of a randomized, controlled, open trial of anti-thrombin therapy for herpes zoster-associated pain. Fifty-five herpes zoster patients within 8 days after the onset of skin lesion were enrolled in the trial. Patients were treated with an optimal dose of oral acyclovir (4000 mg/day for 7 days) with or without intravenous administration of a specific anti-thrombin agent, argatroban (10 mg/day, three times a week). Administration of argatroban reduced pain intensity at the 4th through 21st day after the initiation of treatment as determined by visual analogue scale (Mann-Whitney U test, p < 0.05). It also shortened the median time to cessation of analgesic use (14 days vs. 24 days, p = 0.02, logrank test), although it did not significantly reduce the median time to cessation of pain (21 days vs. 43 days, p = 0.07, logrank test). None of the enrolled patients showed evidence of adverse effects including hemorrhagic diathesis. The results suggested that relatively low doses of argatroban are effective in reducing herpes zoster-associated pain. Up-regulation of prothrombin expression by the vascular endothelial and sweat gland epithelial cells in the active skin lesion and transient elevation of plasma thrombin-antithrombin III complex levels in a proportion of patients suggest a lesional generation of thrombin in herpes zoster. This may be relevant to the beneficial effects of the anti-thrombin treatment on the resolution of herpes zoster-associated pain.

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