Although cocaine use has declined steadily since its peak in the early 1980s, public health officials estimate that about 7 million Americans used the drug at least once last year. Many of these folks are addicted to the drug, and its intense, short-lived euphoric effects mean the addiction is terribly difficult to overcome.
Addiction specialists believe existing treatment paradigms for cocaine addiction can be enhanced by a vaccine that prevents the drug from crossing the blood-brain barrier, thus blunting its euphoric effects. Scientists have worked hard to develop such a vaccine, but have had limited success so far.
About a year ago for example, Thomas Kosten and colleagues at Baylor reported partial success in a human trial of a cocaine vaccine. In that trial, 38 percent of subjects who received all five shots in the vaccine series achieved sufficient antibody levels to blunt the effects of the drug. In that subset, 53 percent of the subjects stopped using cocaine, meaning that overall, the vaccine worked about 20 percent of the time. Read more »
*This blog post was originally published at Pizaazz*