Aabel, S,. Laerum, E., Dølvik, S. and Djupesland, P. (2000) ‘Is homeopathic ‘immunotherapy’ effective? A double-blind, placebo-controlled trial with the isopathic remedy Betula 30c for patients with birch pollen allergy’, British Homeopathic Journal, vol. 89, pp. 161–168.
RVM says: Apart from a couple of days there was no statistically significant difference between trial groups although for 10 days out of the 4 week test period the authors felt there was a “clinically interesting” (whatever that means) difference. No mention of randomisation in the abstract or of how blinding was achieved. The staggering conclusion: “treatment with Betula 30c during the pollen season deserves further attention“. Well, it might if you’re desperate to sell homeopathy to people who trust you and you’re happy to turn a blind eye to the fact it simply doesn’t work.