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Anti-depressant drugs may help only the most severe cases of depression

By Expat98, Jan 6, 2010 | | |
  1. Expat98
    Some widely prescribed drugs for depression provide relief in extreme cases but are no more effective than placebo pills for most patients, according to a new analysis released Tuesday.

    The findings could help settle a longstanding debate about antidepressants. While the study does not imply that the drugs are worthless for anyone with moderate to serious depression — many such people do seem to benefit — it does provide one likely explanation for the sharp disagreement among experts about the drugs’ overall effectiveness.

    Taken together, previous studies have painted a confusing picture. On one hand, industry-supported trials have generally found that the drugs sharply reduce symptoms. On the other, many studies that were not initially published, or were buried, showed no significant benefits compared with placebos.

    The new report, appearing in The Journal of the American Medical Association, reviews data from previous trials on two types of drugs and finds that their effectiveness varies according to the severity of the depression being treated.

    Previous analyses had found a similar pattern. But the new study is the first to analyze responses from hundreds of people being treated for more moderate symptoms, as are most people who seek care.

    “I think the study could dampen enthusiasm for antidepressant medications a bit, and that may be a good thing,” said Dr. Erick H. Turner, a psychiatrist at Oregon Health and Science University. “People’s expectations for the drugs won’t be so high, and doctors won’t be surprised if they’re not curing every patient they see with medications.”

    But Dr. Turner added, “The findings shouldn’t dampen expectations so much that people refuse to even try medication.”

    A team of researchers, including psychologists who favor talk therapy and doctors who consult widely with drug makers, performed the new analysis, using government grants. The group evaluated six large drug trials, including 728 men and women, about half of them with severe depression and half with more moderate symptoms.

    Three of the trials were of Paxil, from GlaxoSmithKline, a so-called S.S.R.I., and the other three were of imipramine, an older generic drug from the class known as tricyclics. The team, led by Jay C. Fournier and Robert J. DeRubeis of the University of Pennsylvania, found that compared with placebos, the drugs caused a much steeper reduction in symptoms of severe depression (cases scoring 25 or higher on a standard scale of severity, putting them in the top quarter of the sample). Patients with scores of less than 25 got little or no added benefit from the medications.

    “We were able to give an overall estimate of effectiveness for the first time in this more moderate severity range, from 14 to 20 on the scale, in which there’s no question that doctors would likely consider prescribing medication,” Dr. DeRubeis said.

    His co-authors included Steven D. Hollon and Dr. Richard C. Shelton of Vanderbilt University, Sona Dimidjian of the University of Colorado, Dr. Jan Fawcett of the University of New Mexico and Dr. Jay D. Amsterdam of Penn.

    The effects of other popular S.S.R.I.’s like Lexapro and Prozac are not likely to be much different than those of Paxil, experts said.

    Dr. DeRubeis and others said antidepressants’ inability to outperform placebos against moderate symptoms stemmed partly from the sustained attention that patients in drug trials received from top doctors — which itself can help relieve symptoms, drug or no drug. For some people, too, the drugs’ side effects may cancel any benefit.

    “The message for patients with mild to moderate depression,” Dr. DeRubeis said, “is, ‘Look, medications are always an option, but there’s little evidence that they add to other efforts to shake the depression — whether it’s exercise, seeing the doctor, reading about the disorder or going for psychotherapy.’ ”


    By BENEDICT CAREY, New York Times
    January 5, 2010



  1. Canmedaa
    Anti-Depressants work in people with chemical imbalances. If your sad cause your life sucks that's not a chemical imbalance, to put it plainly. Your life just sucks and your sad accordingly.

    I've seen SSRI's work like miracle cures, like an angel from heaven came down and fixed things right up to tolerable. But mostly...they don't seem to much. More commonly I hear about people complaining about the side-effects.

    I think SSRI's (and let's assume I'm including all the other anti-depressants) got a little hyped, the way antibiotics did, and they became over-used as if Depression were like an infection you could catch and if we just blast it with all this pharmaceutical goodness it will go away no problem.

    I'm not really being fair here, but I think it's good that people are really taking another look at them. Personally I feel that Anti-Depressants are not necessarily a last resort...but they certainly aren't the first thing I'm apt to jump to. Anything that messes with brain chemistry the way SSRI's do is not something I'd feel comfortable handing out like lorazepam, to be perfectly honest. Not for depressive symptoms anyway.

    For panic disorder, absolutely. Get those SSRI's started if a few weeks of lorazepam and CBT don't work. But I'm not so convinced about how well Anti-Depressant actual anti depression.

    Anyway, that's my two-cents. Good stuff.
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