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Another Kind of AIDS Crisis

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Left: Norma Martinez. Age: 61 / HIV: 12 years / Has suffered from: lipodystrophy, fatigue.
Right: Michael Davis. Age: 47 / HIV: 28 years / Has suffered from: lipodystrophy, dysplasia, Crohn's disease.  

It might seem churlish to complain about the consequences of aging with HIV, when, for the first six years of the plague, survival itself was at stake. Back then, life expectancy after a first doctor’s visit was eighteen months. Tears of relief greeted AZT, a toxic old cancer drug that was reintroduced as an AIDS treatment in 1987. Researchers hoped AZT would neutralize the virus before it had a chance to cause infection. But even at doses so toxic that the drug destroyed livers and caused severe muscle loss, it proved no match for the virus’s ability to mutate. For almost fifteen years, no real hope crossed the horizon until researchers identified a promising new class of drugs. Called protease inhibitors, the pills attack cells that HIV has already infected, blocking the enzyme they use to replicate. In studies, the drugs still proved vulnerable to mutations. However, when taken in combination with the older drugs (including AZT), that vulnerability seemed to nearly vanish. What’s more, the drug cocktails somehow magnified the power of each individual drug to the point where together they could push the level of circulating virus down below the ability of sensitive tests to detect. Even more thrilling, it became clear that with the virus suppressed, the body could actually reconstitute its immune system. In most patients on successful therapy (especially those who didn’t delay or interrupt treatment), T-cell counts return to near-normal levels. Practically overnight, the number of people who developed opportunistic infections like pneumonia and Kaposi’s sarcoma dropped 70 percent.

What wasn’t clear at the time was how long patients would be expected to take these drugs. Initially, Dr. David Ho of the Aaron Diamond AIDS Research Center predicted it would be just a few yearshe famously speculated that the drugs might eventually clear HIV from the system. This proved to be fantasy. We now know that HIV finds hiding places in the body out of the drugs’ reach. Once medication is halted, these sleeper cells send out armies of new viral invaders to resume the war undaunted. So the current thinking is that the drug regimens are lifelong commitments.

As a consequence, researchers fiercely debate at what point in a patient’s illness to begin prescribing them. The initial theory was an approach called Hit early, hit hard, meaning everyone with HIV should be on full-dose combination therapy, even those without symptoms. Alarmed by the toxic exposure, some experts began arguing to hit a little later. Federal standards were adopted that recommended the drugs to people with CD4+ T-cells under 500, a near-normal count, then were revised to 350, then 200.

You realize you can’t read and you used to read, says a former Balanchine dancer. That’s the hardest part, when you cognitively know you’re losing yourself.

But now a number of studies suggest that people whose CD4s are allowed to drop that low are destined to poorer outcomes. At an AIDS conference earlier this year, researchers from Seattle presented a large-scale study that compared patients who started treatment early with those who waited. They found delaying therapy boosted the odds of dying by either 69 percent or 94 percent over a decade, depending on how low the patient’s T-cell count was. These are staggering numbers. Though the investigators say that randomized long-term studies are needed to confirm their work, they nonetheless propose beginning treatment earlier. Leading AIDS doctors are persuaded. Many of us who see large numbers of HIV patients are becoming superaggressive, says Dr. Stephen Dillon, who practices in the West Village. I don’t believe everybody needs to be started on meds. But I do believe that we need to start earlier than we have been for the last five to ten years.

In a dramatic move last week, the National Institute of Allergy and Infectious Diseases upped the ante even further by announcing a massive new plan to test virtually every single adult in the Bronx and the District of Columbiahomes to some of the highest rates of infection in the countryand put everybody who tests positive on anti-HIV drugs, whether they have depleted T-cell counts or not. Dr. Anthony Fauci, the nation’s top AIDS official, said the main goal of the program was to stem transmission of the virus. Untreated patients are extremely infectious. Effective treatment suppresses HIV to such a degree that transmission risks can be virtually eliminated.

Still, the proposal is fraught with ethical peril. Because of the stigma associated with HIV infection, advocates have long insisted that testing for HIV should only be done in combination with extensive counseling. In addition, a number of leading researchers have called for more research on the drugs’ side-effects before putting more people on them, according to Jeffrey Laurence, a professor of medicine at Weill Cornell Medical College in New York. For one thing, he says doctors wonder if African Americans fare worse on the drugs than whites. Our chairman of medicine said he’s never seen a white person with HIV and kidney disease, it basically doesn’t happen. There’s a whole bunch of information we need before pushing forward with this.


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