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    Expert: Better HIV Drugs Won't Cure AIDS

    Progress, Problems With New Drugs and Vaccines Revealed at Conference
    WebMD Health News
    Reviewed by Gary D. Vogin, MD

    July 11, 2002 -- At each AIDS conference it's the same. Everyone hopes to hear about the magic bullet that will end the most terrible plague ever to visit mankind. This year's XIV International AIDS Conference may put an end to all that. The bottom line: no magic bullet now, or ever.

    That's the reality check offered by Johns Hopkins University's Robert Siliciano, MD, PhD. In a sobering presentation, Siliciano made it clear that no drug will ever cure a person of HIV infection. The hope that remains is that new drugs and new immune-based treatments can keep HIV-infected people AIDS-free for the rest of their lives.

    Indeed, the conference was filled with encouraging progress reports on badly needed new drugs -- and, even better, new types of drugs. Perhaps the best example of this is the progress of T-20, a new type of drug that keeps HIV from infecting new cells. Clinical trials show the drug can be of great benefit to people for whom several other AIDS drugs no longer work. Most observers expect that FDA approval will come soon. The downside: the drug must be taken by injection, and a complex manufacturing process almost ensures that it will be very, very expensive.

    "Expensive" has been a key word at this year's conference. No matter how good AIDS drugs get, they can't help people who can't afford them. About half a million people have access to these treatments. That leaves about 35.5 million of the world's HIV-infected people with no hope in sight. The conference had no shortage of pleas for care, demands for cash, and plans for action. Whether the world's economic and political leaders will lend an ear -- and a helping hand -- remains to be seen.

    An AIDS vaccine remains the world's best hope for an end to the epidemic. This year's conference featured a big media splash by VaxGen, the firm that makes the experimental AIDS vaccine nearing the end of large-scale tests. The moving spirit behind this vaccine is Donald P. Francis, MD, a hero of the early days of the AIDS epidemic. Most vaccine researchers doubt that the relatively simple VaxGen vaccine will work very well. Francis has relentlessly pushed for trials, reasoning that you can't succeed if you don't try. VaxGen has made the rather premature announcement that it is ready to begin large-scale vaccine production. Results of the trial won't be known until early 2003.

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