A 'Vaccine' for Cocaine

Katherine Harmon writes in Scientific American that pharmacology researchers are developing a drug that could diminish the pleasurable effects of cocaine. Taking the drug might help addicts detoxify with greater success:

The vaccine itself does not destroy cocaine molecules, rather it induces antibodies that bind to it, making the opiate lose its ability to pass through the blood–brain barrier—and thus unable to trigger a high.

To test the vaccine's effectiveness in humans, researchers (with some help and financial backing from Celtic Pharma) enlisted 94 subjects who had enrolled in a methadone treatment program for opiate addiction—and who also regularly used cocaine—for a placebo-controlled, double-blind study. (They decided on this group because methadone programs historically have better retention rates than programs for cocaine abuse only.) One group received a placebo, another a low dosage of vaccine, whereas a third was administered a high dosage over a series of 12 weeks with five total injections.

More than half of the subjects in the high-dosage group (53 percent) appeared to have laid off the cocaine for more than half of the trial period, the researchers report after tracking traces of the drug in urine samples collected three times a week. Just less than a quarter of subjects with the low dosage had the same track record, according to the results published online yesterday in the Archives of General Psychiatry. A drop in cocaine usage across all groups may also be attributed to a curb in opiate drug consumption from the methadone treatment.


Link | Image: U.S. Department of Health and Human Services

This sounds exactly like the Chantix I recently began taking. I already feel the old processes fading as the whole blood/brain barrier schtick is losing its old flair. If this can be further extended to crystal meth, we just might have won.
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This doesn't make any sense. Not that the method wouldn't work... but cocaine is not an opiate. Perhaps they meant heroine since they're doing tests on methadone users. ie, heroine and methodane are both opiates.
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In the article, why were the results of the placebo group omitted (the whole point of a placebo study is to accurately compare treatment vs nontreatment)? Did the subjects continue to be monitored under the rehabilitation program? Why are they giving methadone to cocaine addicts?

This study is really, really weird. Drug companies need to invest in PR, because if they rely on gimmicks like these to line their pockets, it's gonna take a lot more than Zoloft to stop people from asking questions.
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Article is misquoted. Neatorama says:

The vaccine itself does not destroy cocaine molecules, rather it induces antibodies that bind to it, making the opiate lose its ability to pass through the blood–brain barrier—and thus unable to trigger a high.

Article says:

The vaccine itself does not destroy cocaine molecules, rather it induces antibodies that bind to it, making the stimulant lose its ability to pass through the blood–brain barrier—and thus unable to trigger a high.

Cocaine ? opiate.
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Tim Giachetti, John Farrier: Chantix is used to reduce the desire for nicotine. While it's admirable that Johnny Cat is quitting smoking, I can't really see what's so awesome, gutsy or incredible about mentioning it.
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