Assessment of the adjuvant effect of tacrolimus in the management of pemphigus vulgaris: A randomized controlled trial

Introduction: To investigate the therapeutic efficacy of tacrolimus compared with azathioprine in the treatment of pemphigus vulgaris.About 23 patients received prednisolone and azathioprine, and 23 patients prednisolone and tacrolimus for 6 months. Pemphigus activity scores, the time that new bulla formation stopped, the time corticosteroid was tapered, cumulative steroid dosage and medication side effects were analyzed.In the control group, the new bulla formation was ceased after a mean ± SD of 11.8 ± 4.7 days, and steroid tapering was done after a mean ± SD of 28.3 ± 5.45 days. Of the 23 patients receiving prednisolone and tacrolimus, the new bulla formation was ceased after a mean ± SD of 12.9 ± 5.26 days, and steroid tapering was done after a mean ± SD of 28.2 ± 5.39 days. About 8.6% of patients did not reach remission in each group. In patients receiving azathioprine, life-threatening side effects were seen in 1 (4.7%), moderate side effects in 2 (9.5%) and mild side effects in 1 (4.7%). In patients receiving tacrolimus, moderate side effect was seen in 1 (5%) and mild in 1 (5%).Tacrolimus effects are comparable to azathioprine as pemphigus vulgaris adjuvant treatment, also it has less severe side effects. Trial registration No. IRCT2012073010450N1 available at www.IRCT.ir.