A recent article in the journal Neurology reports the results of an observational study regarding the use of so-called complementary and alternative medicine (CAM) by patients with an incurable brain glioma. They found that 40% of patients sought some type of CAM treatment. These results are in line with prior surveys, but require closer inspection.
Complementary therapy was defined as methods or compounds not used in routine clinical practice and not scientifically evaluated.
This is a problematic definition, but reflects the fact that there is no universally accepted and clean definition of CAM. CAM is a hodge-podge of therapies and modalities that have only one thing in common – they have not met the science-based standard of care. It is not accurate to say that they are “not scientifically evaluated.” Some CAM therapies have not been evaluated, but many have, and have already been adequately found to lack efficacy. In the current study homeopathic remedies were the most commonly reported. Homeopathy has certainly been studied – and found to be indistinguishable from placebo.