When Kim Janda built the first cocaine vaccine in his Scripps Research Institute lab 25 years ago, he slapped it with a three-letter name: GNC. âIt stood for âgold nugget cocaine,â because we thought it was going to make us rich,â he recalls with a snort. âIt sounds stupid now.â
That first iteration developed too few antibodies, and the secondâ"its name simply graduated up the alphabet to GNDâ"was too pricey, but they fueled a radical idea that became vaccinologyâs holy grail: What if instead of just treating addiction with abstinence and self-help groups, it could be vaccinated against like measles or mumps? It would stop some 22 million seriously ill Americans from harming themselves with drugs. If they relapsed, it would be, in colloquial terms, âno fun.â Scientists have since tried in vain to make a viable drug-abuse vaccine, though many dismiss the goal as quixotic. After all, drugs arenât viruses; theyâre much tinier, more stubborn, and basically imperceptible to the immune system.
But Janda, a chemist whoâs made these vaccines his lifeâs work, may have his gold nugget after all (figuratively this time, as ânone of that money is gonna come to meâ). In May, Ronald Crystal, head of genetic medicine at Weill Cornell, published his success using Jandaâs GNE (the third iteration) in monkeys. Crystal attaches it to a cold virus to create a vaccine that, in his words, âeats up the cocaine in the blood like a little Pac-Man.â Crystal renamed the compound dAd5GNE, the âAdâ standing for adenovirus, or the common cold, his area of expertise. (Heâs published hundreds of papers cataloging the adenovirusâs effects as a carrier.) By mid-2014, Crystal hopes to begin human trials.
Fighting drug abuse is serious business. Addiction kills more people than car accidents. A third of drug users are unemployed. With health-care costs, it amounts to a $180 billion-a-year sinkhole, and, since weâre tabulating, toss in the war Nixon declared on drugs in 1971, which has cost taxpayers another $1 trillion. The wreckage of life is incalculableâ"despair over seemingly unkickable habits, relapse rates that swell as high as 90 percent. Cocaine is especially insidious. It results in the most drug-related ER visits and has no substitute-drug helper, like methadone for heroin. In his memoir, Times media critic and ex-junkie David Carr says about smoking crack, âThe narcotic was being inhaled while my soul was exhaled.â
That ending addiction has been a fruitless endeavor is not for lack of ingenuity: Researchers have repurposed drugs already on the market (Ritalin for ADHD, the anti-smoking medicine Chantix), tested electromagnetism, tried using cholera, foraged bacteria from coca-plant roots, and flooded addicts with lab-made antibodies. So far, nothing works well enough.
A typical vaccine, like what children get against tetanus, releases a tiny amount of the disease into the bloodstream, just enough to evoke antibodies, which commit its molecular fingerprints to memory. To make Jandaâs GNE, researchers stuck a coke look-alike to a big protein carrier. Together, they stimulate the body to produce cocaine antibodiesâ"or at least thatâs the hope.
Some in medicine are dubious. âA vaccine is actually an old idea,â says Keith Humphreys, a Stanford psychiatrist who works with addiction. âAnd not much has changed in 25 years.â But Janda, a gruff, bald Clevelander, has also won accoladesâ"âHe has taken jumps, while the rest of us are content with iterative steps,â says NationÂÂal Institute on Drug Abuse deputy director Ivan Montoyaâ"and even has a superfan, a Montana physician who penned a medical thriller in which âa scientist who has developed an effective cocaine virusâ suffers âmysterious anaphylactic deathâ at the hands of the mob.
It was Jandaâs reputation that drew Crystal, the Cornell geneticist, to the project in 2008. Crystalâ"hale, headstrong, and, at 72, an amateur alpinistâ"had a eureka moment when he saw a Newsweek cover line, THE HUNT FOR AN ADDICTION VACCINE. âI thought, What if we hooked cocaine up to an adenovirus?â he tells me. He cold-called Janda in California. âI didnât know who he was. I just called him out of the blue and said, âIâd like to collaborate with you.âââ
For Janda, the partnership made sense. He works in a cash-strapped lab; addicts donât tend to attract pharma dollars, he complains. âDrug companies feel they wonât make enough money back.â The fieldâs biggest venture capitalist is an NIH subagency whose $1 billion budget is less than Pfizer spends to get one drug to market. Crystal had money, experience with adenoÂviruses and animal studies, and a facility to manufacture the drug to boot.
Crystal says he eventually sees us âthinking about addiction the same way you think about mumps and measles and polio, and eradicating it.â But of course, for all the talk of addiction being a disease, itâs vastly different from those. Itâs not a mere physiological problem; itâs psychic, too. Even if you can cancel the effects of drugs, can you make us not want to take them? This problem beÂÂcame apparent three years ago in a study for a vaccine called TA-CD made by Baylor College of Medicineâs Thomas Kosten, Jandaâs big rival. It was the first late-stage cocaine-vaccine trial, and the vaccine successfully blocked cokeâs effects, but not the desire to get high. Some users took ten times more cocaine, and several went broke in hopes of finding the elusive buzz. Of the trialâs successfully vaccinated subjects, 53 percent managed to stay clean for more than half of the time they participated. âThus, we need improved vaccines,â the study concluded. Nevertheless, doctors declared the work âgroundbreaking.â
Crystal expects this wonât matter for them because theyâve tweaked the molecule to ensure a âmore robustâ immune re-sponse, but that still might not be enough. Itâs on this point where the vaccine idea meets resistance from the rehab community, which is dominated by 12-step programs like Alcoholics Anonymous that have opposed alternative-drug therapies, including methadone and buprenorphine, on the grounds that addicts, being addicts, will just swap one substance for another.
âThatâs one of my concerns, that people will treat a vaccine as all they need,â says Jack Feinberg, a clinical director at Phoenix Houses of Florida, a top U.S rehab provider. He stresses heâs hopeful, but knows addicts âoften have lots of other life issues that need resolving that fixing their drug addiction wonât help.â Angela Garcia, a Stanford professor who studies addiction, agrees. âWhen a mouse no longer feels pleasure from a drug because of a vaccine, it doesnât have the option of turning to another pleasure-producing substance,â she says. âBut humans do.â
The prospect of the vaccine is already raising thorny ethical questions. Taking away a personâs ability to feel things, Clockwork Orange style, even if the feeling is a drug high, runs counter to our idea of free will. It may be decades away, but itâs not impossible to imagine teenagers getting vaccinated for drugs the way they are for HPV.
But for now, Jandaâs biggest obstacle is time. Twenty-five years of chasing vaccines is starting to wear on him. In 2011, he guessed he has âeight or ten more years, then itâs someone elseâs turn.â He tells me he plays to win but is âalmost burnt out. You always have to be doing cutting-edge stuff.â In fact, heâs already working on GNF, the next big thing, in case the current trial doesnât pan out.
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