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BMC Vet Res. 2015 Sep 15;11:236. doi: 10.1186/s12917-015-0542-2.

Veterinary homeopathy: systematic review of medical conditions studied by randomised trials controlled by other than placebo.

Author information

1
British Homeopathic Association, Hahnemann House, 29 Park Street West, Luton, LU1 3BE, UK. rmathie@britishhomeopathic.org.
2
Karl und Veronica Carstens-Stiftung, Am Deimelsberg 36, D-45276, Essen, Germany. j.clausen@carstens-stiftung.de.

Abstract

BACKGROUND:

No systematic review has previously been carried out on randomised controlled trials (RCTs) of veterinary homeopathy in which the control group was an intervention other than placebo (OTP). For eligible peer-reviewed RCTs, the objectives of this study were to assess the risk of bias (RoB) and to quantify the effect size of homeopathic intervention compared with an active comparator or with no treatment.

METHODS:

Our systematic review approach complied fully with the PRISMA 2009 Checklist. Cochrane methods were applied to assess RoB and to derive effect size using standard meta-analysis methods. Based on a thorough and systematic literature search, the following key attributes of the published research were distinguished: individualised homeopathy (n = 1 RCT)/non-individualised homeopathy (n = 19); treatment (n = 14)/prophylaxis (n = 6); active controls (n = 18)/untreated controls (n = 2). The trials were highly diverse, representing 12 different medical conditions in 6 different species.

RESULTS:

No trial had sufficiently low RoB to be judged as reliable evidence: 16 of the 20 RCTs had high RoB; the remaining four had uncertain RoB in several domains of assessment. For three trials with uncertain RoB and without overt vested interest, it was inconclusive whether homeopathy combined with conventional intervention was more or was less effective than conventional intervention alone for modulation of immune response in calves, or in the prophylaxis of cattle tick or of diarrhoea in piglets.

CONCLUSION:

Due to the poor reliability of their data, OTP-controlled trials do not currently provide useful insight into the effectiveness of homeopathy in animals.

PMID:
26371366
PMCID:
PMC4570221
DOI:
10.1186/s12917-015-0542-2
[Indexed for MEDLINE]
Free PMC Article

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