http://www.holistic-online.com/Chelation/chel_clinical_trials.htm
Clinical Trials/Results
Chelation therapy is backed by a large number of testimonials and experiments
that shows the effectivity of this therapy. Many of these were not
scientifically conducted (such as a double blind study). Chelation therapists
rightfully point out that it is hard to give a placebo when administering the
compound (especially from the therapist as is required for the double blind
study).
Therapists point out that about 500,000 chelation therapies are being done in
the USA alone every year and the patients are very happy, placebo effect or
not. Rosenfeld, author of "Guide to Alternative Medicine" talked about two of
his patients whose condition has improved substantially after the chelation
therapy, although he could not clinically identify what was different about
them. Chelation therapy saves considerable amount of money. A typical chelation
therapy cost about $3000 compared to a bypass surgery at about $30,000. There
is not much risk in chelation therapy as compared to the surgery.
A review of treatment results from 2,870 patients in Brazil found significant
improvement in patients with heart disease or peripheral vascular disease who
were treated with chelation therapy. 76.9 percent of the heart patients treated
reported "marked improvement" and another 16.6 percent reported "good
improvement". The results were even better for the patients who were treated
for peripheral vascular disease. 91 percent showed "marked" improvement and 7.6
percent showed "good" improvement. So, 96-98 percent of the patients treated
reported improvement after chelation therapy.