Between 1950 and 2009, 142 randomised controlled trials (RCTs) in homeopathy have been reported. This represents research in 74 different medical conditions. Of these 142 trials, 63 were positive, 11 negative and 68 non-conclusive.
A number of systematic reviews have evaluated the homeopathic research literature.
Read more about the main current hypothesis and experiments on the effects of ultra-high dilutions in homeopathy.