BMJ  2004;328:1459 (19 June), doi:10.1136/bmj.38107.645926.AE (published 24 May 2004)

Paper

Steroid prophylaxis for prevention of nerve function impairment in leprosy: randomised placebo controlled trial (TRIPOD 1)

¹ Department of Public Health, University of Aberdeen, Aberdeen AB25 2ZD, ² International Nepal Fellowship, RELEASE, PO Box 28, Pokhara, Nepal, ³ Leprosy Mission Bangladesh, House 17A, Road 3, Banani (Old), Dhaka 1206, Bangladesh, ⁴ Royal Tropical Institute (KIT), Leprosy Unit, Wibautstraat 137J, 1097DN Amsterdam, Netherlands, ⁵ 56a St Peters Road, Earley, Reading RG6 1PH, ⁶ Department of Public Health, Erasmus MC, University Medical Centre, Rotterdam, PO Box 1738, 3000 DR Rotterdam, Netherlands

Objective To determine whether addition of low dose prednisolone to multidrug treatment can prevent reaction and nerve function impairment in leprosy.

Design Multicentre, double blind, randomised, placebo controlled, parallel group trial.

Setting Six centres in Bangladesh and Nepal.

Participants 636 people with newly diagnosed multibacillary leprosy.

Intervention Prednisolone 20 mg/day for three months, with tapering dose in month 4, plus multidrug treatment, compared with multidrug treatment alone.

Main outcome measures Signs of reaction, impairment of sensory and motor nerve function, and nerve tenderness needing full dose prednisolone at four months and one year.

Results Prednisolone had a significant effect in the prevention of reaction and nerve function impairment at four months (relative risk 3.9, 95% confidence interval 2.1 to 7.3), but this was not maintained at one year (relative risk 1.3, 0.9 to 1.8). Fewer events occurred in the prednisolone group at all time points up to 12 months, but the difference at 12 months was small. Subgroup analysis showed a difference in response between people with and without impairment of nerve function at diagnosis.

Conclusions The use of low dose prophylactic prednisolone during the first four months of multidrug treatment for leprosy reduces the incidence of new reactions and nerve function impairment in the short term, but the effect is not sustained at one year. The presence of nerve function impairment at diagnosis may influence the response to low dose prednisolone.

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