Adjunctive clindamycin for cellulitis: clinical trial comparing flucloxacillin with or without clindamycin for the treatment of limb cellulitis

Richard Brindle, O Martin Williams, Paul Davies, Tim Harris, Heather Jarman, Alastair Hay, Peter Featherstone

Research output: Contribution to journalArticle (Academic Journal)peer-review

39 Citations (Scopus)
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Abstract

Objective To compare flucloxacillin with clindamycin to flucloxacillin alone for the treatment of limb cellulitis.

Design Parallel, double-blinded, randomised controlled trial.

Setting Emergency department attendances and general practice referrals within 20 hospitals in England.

Interventions Flucloxacillin, at a minimum of 500 mg 4 times per day for 5 days, with clindamycin 300 mg 4 times per day for 2 days given orally versus flucloxacillin given alone.

Main outcome measures The primary outcome was improvement at day 5. This was defined as being afebrile with either a reduction in affected skin surface temperature or a reduction in the circumference of the affected area. Secondary outcomes included resolution of systemic features, resolution of inflammatory markers, recovery of renal function, reduction in the affected area, decrease in pain, return to work or normal activities and the absence of increased side effects.

Results 410 patients were included in the trial. No significant difference was seen in improvement at day 5 for flucloxacillin with clindamycin (136/156, 87%) versus flucloxacillin alone (140/172, 81%)—OR 1.55 (95% CI 0.81 to 3.01), p=0.174. There was a significant difference in the number of patients with diarrhoea at day 5 in the flucloxacillin with clindamycin allocation (34/160, 22%) versus flucloxacillin alone (16/176, 9%)—OR 2.7 (95% CI 1.41 to 5.07), p=0.002. There was no clinically significant difference in any secondary outcome measures. There was no significant difference in the number of patients stating that they had returned to normal activities at the day 30 interview in the flucloxacillin with clindamycin allocation (99/121, 82%) versus flucloxacillin alone (104/129, 81%)—adjusted OR 0.90 (95% CI 0.44 to 1.84).

Conclusions The addition of a short course of clindamycin to flucloxacillin early on in limb cellulitis does not improve outcome. The addition of clindamycin doubles the likelihood of diarrhoea within the first few days.
Original languageEnglish
Article numbere013260
Number of pages10
JournalBMJ Open
Volume7
Issue number3
Early online date17 Mar 2017
DOIs
Publication statusPublished - Mar 2017

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