January 05, 2010Study: Anti-Depressants Ineffective For Mild, Moderate DepressionA new study is out in JAMA today and it is likely to be picked to pieces because it concludes, based upon a meta analysis of selected clinical trials just two anti-depressants, that anti-depressants are ineffective for mild to moderate depression but are quite robust for severe depression. That's the spin the media is putting out at any rate. The reality though is that this study looked at six clinical trials of Paxil and Imipramine. So to extrapolate to other drugs isn't exactly fair--not that other studies haven't already questioned the effectiveness of other anti-depressants. Anywhere, it's interesting that the study was published in JAMA (it doesn't strike me as the most important study in the world) and that it offers further proof of how limited in effectiveness anti-depressants can be. Which begs the question of why so many people are taking them. Posted by Philip Dawdy at January 5, 2010 02:03 PM
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The National Institute for Health and Clinical Excellence (NICE), in the UK (which has as one of its roles the assessment of drugs for approval on the NHS), has long said the same thing. It's also responsibile for drafting advice to quacks and its official guidelines on the treatment of depression recommend that drugs be used as a last resort (I'm paraphrasing, obviously). It's stopped short of saying that they're completely shite, because by the time that NICE gets to look at them, they've already been passed as "safe and efficacious" by the MHRA, the UK "regulator". Any hatchet job by NICE would result in lawsuits from The Worshipful Company, I imagine. Matt Posted by: Matthew Holford at January 5, 2010 03:12 PMShades of a study published in PLoS sometime ago, Initial Severity and Antidepressant Benefits: A Meta-Analysis of Data Submitted to the Food and Drug Administration though the results for severe depression in the PloS study were far from robust, "Thus the increased benefit for extremely depressed patients seems attributable to a decrease in responsiveness to placebo, rather than an increase in responsiveness to medication." [Last line of the PLoS article.] Posted by: Joe at January 5, 2010 03:13 PMWhat a shock! I can already anticipate one of the most vocal critiques from psychiatrists-- "Imipramine? Why imipramine??? Nobody uses imipramine." (And, of course, in the accompanying article, Mischoulon says almost as much.) The fact, however, is that decades of data show that all antidepressants have approximately the same efficacy, so the results obtained with imipramine & Paxil should easily be generalizable to other antidepressants. The failure or success of any one agent in mild depression is likely due to the side effect profile or placebo effect, respectively. We psychiatrists have to learn that when our patients with mild depression "improve" on a medication, it's just as likely to be due to factors separate from the medication than to the med itself. When we figure out what those factors are, then we can successfully treat depression. Unfortunately, there's no publicly traded company or multimillion dollar marketing budget devoted to that task. Posted by: SteveBMD at January 5, 2010 06:25 PMThis information fits with my own experience so I am not surprised by it. The thing is, severe *anything* responds best to *anything.* Why are we wasting time on this crap? Posted by: Francesca Allan at January 5, 2010 07:08 PMSteveBMD, thanks for adding a much appreciated voice of reason from the psychiatric field to this discussion. This study plays like a broken record ("decades of data"), further underscoring the profit motive involved in the pharmaceutical racket. In addition to drug efficacy data, I'm curious why our social scientists are not contributing more to this vital health issue. Having lived and worked abroad, and travelled extensively through foreign cultures, I can say from first hand experience that 'depression' as we define in the West is viewed, and treated very differently in other cultures, many of which don't have nearly the rates of psychotropic drug (ab)use the USA does. In countries where extended families and more social cohesion are the norm, I never witnessed the endless parade of neuroses seen here in the West. I would love to see more cross-cultural anthropological studies done on mental illness. Posted by: The Skeptic at January 5, 2010 10:16 PM"Having lived and worked abroad, and travelled extensively through foreign cultures, I can say from first hand experience that 'depression' as we define in the West is viewed, and treated very differently in other cultures, many of which don't have nearly the rates of psychotropic drug (ab)use the USA does." Skeptic, Bhutan... Bhutan measures its success, not in GDP, but in "National Happiness," or somesuch measure. I don't know how "happiness" is measured, nor how precise that measurement is. And I don't know how one improves one's happiness, if one perceives oneself to be unhappy. However, other countries are now eyeing Bhutan's success (and it has improved in the happiness stakes, apparently), and are appointing "Happiness Tsars," and the like - the UK, for one. I should have thought the answer was relatively obvious, if one wishes to make the greatest impact, in the shortest period of time: establish what it is that makes people unhappy, and substitute something that makes them happy, instead, but WTF would I know? Matt Posted by: Matthew Holford at January 6, 2010 03:46 AMImagine Imipramine being given to an 11 year old for bed wetting prevention and not being told it was a psychiatric medication, an anti depressant of all things! Posted by: Stephany at January 6, 2010 07:51 AMI read this study in full. It is very difficult if not impossible to carve out the extent of HDRS changes described as being very significant in placebo vs. med responders. The study takes great pains to demonstrate that this "statistical" effect occurs at or around a baseline HDRS of around 25-27 and not below but says very little about details of the med placebo response difference. It also says that NICE has defined a difference of 3 pts on the HDRS as being clinically significant. If I start at a 26 and I get to a 23 on HDRS I still have "very severe"depression but I am now described as a TXD responder. It would appear from a single graff that in the most severe groups there was about a 7 pt difference in HDRS on regression analysis. They write the NNT for the "very severe depression" cases is 4. This means I have to give 4 people meds to get one legitimate response of perhaps a drop in HDRS of 3 points. This appears to be pathetic. Perhaps it was not the authors intenet to even make mention of the actual real world response that people have to these meds and instead simply tell us they have no "statistical" response unless people are in horrible shape. As someone expecxted to prescribe these meds I want to be able to tell people how much better if at all really they can expect to get from them. A drom in the HDRS of 3 pts may be meaningful to NICE but it does not mean shit in the real world. The authors appear to be trying to avoid making even limited comment on this critical question. This is pathetic. Posted by: Dr John at January 6, 2010 08:47 AMWe were told in hormones and behavior class that SSRIs perform better than placebo, and just as well as... calcium supplementation! Probably don't have the citation. I took the class in 2003. Posted by: Sarah at January 6, 2010 09:22 AMSorry for all my typos. Posted by: Dr John at January 6, 2010 04:48 PMWhat all of you said!! Regarding what Stephany said (and here's a cyber hug, I read about Lindsay today!). One of my pet peeves with psych meds is the need for prescribing docs to give patients full disclosure. You said you weren't told that the "bed wetting" med was an AD. I recall that years ago my mom had unexplained dizziness/vertigo. They couldn't find anything, but they gave her a pill and said to take one each day. Upon visiting, I asked to see the bottle. It said Diazepam. "Mom, that's Valium!" I told her. "They think you're a crazy old lady nervous hypochondriac!" I don't recall what happened after that except that I felt angry at her doctor. Eventually, the dizziness stopped. I think it may have been an inner ear issue, who knows. BUT THE DOCTOR DID NOT TELL HER HE WAS PRESCRIBING A PSYCH DRUG. Thankfully it didn't seem to do much either way. Posted by: Miranda at January 7, 2010 10:24 AMRegarding: I just posted this on another thread, so pardon all: fyi: fascinating article in today's NYT http://www.nytimes.com/2010/01/10/magazine/10psyche-t.html Matt, Alan, Yep. Boredom is one of the symptoms. We go to Jordan, Italy, France, UK, Nigeria, blah blah China (China? Yes, china) and people are wearing western closes and eating at Macdonald. Posted by: Ana at January 14, 2010 09:22 AM Errata: Architecture is not being preserved... blah blah... PS And the diseases being diagnosed and treated in western way. Sorry, back pain is telling me to get out of the computer. Posted by: Ana at January 14, 2010 09:26 AM I also read the full study and agree with Dr. John that it is truly pathetic. I mean yeah, I'm happy with the conclusion, that a/ds are not effective, but the evidence as it's presented? It's meaningless like just about every other psych study I've ever read in a journal. I cannot believe the statistical machinations authors get up to in the name of psychiatry. It is so laughable. Not one case example is ever presented (they used to be 15-20 years ago) and it's near impossible to tell what really happened at the clinical level in the trials that are being analyzed. Sure it's a milestone to have a study published that says a/ds are ineffective in mild depression but the argument appears to be so weak it almost helps a/d supporters rather than hurts them. Maybe this was the intention? Look at articles by Warner quoting Kramer, Friedman, and even Danny Carlat, all rushing to the defense of a/ds in mildly ill people as a result of this study. Posted by: Sara at January 14, 2010 01:09 PMJAMA Says SSRI Antidepressants Work No Better Than Placebos For Mild to Moderate Depression This JAMA article provides evidence that Premenstrual Dysphoric Disorder and other common forms of hormonal imbalance such as PMS are poorly served by SSRI antidepressants. An SSRI drug is simply the wrong treatment for PMS. The benefit of SSRI antidepressants for this group is the same as the benefit from placebo. In many cases, bioidentical progesterone works quite well for PMS with none of the adverse side effects associated with SSRI antidepressants. Adverse effects of SSRIs include sexual dysfunction, weight gain and sleep disturbance. Another troubling issue is increased suicide risk with SSRI drugs... For More: http://jeffreydach.com/2010/01/21/jama-says-ssri-antidepressants-are-placebos-by-jeffrey-dach-md.aspx hi, got one hand 2 type due 2 cut but want 2 say i have had major depression over 20 years. best meds yet have been riding a horse. awesome therapy. i wrote an article in my blog about it. "Anti-depressants don't always come in a pill," but I will say 2 that my 74 year old mom is taking Pristique and she feels like living again. i worry bout her but i want her 2 feel happy. Sometimes it is hard 2 know what is best. 4me-- horses rock and soon as i get well i'm back 2 riding. i enjoyed reading here. thanks and sorry 4 grammer but good 4 one finger typing! Post a comment
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