1 / 58

Antidepressants & the Politics of Health David Healy

Antidepressants & the Politics of Health David Healy. All Trials GSK House of Common. All Trials GSK House of Common. If treatments work , they could be made available for free, they would enhance national productivity, and encourage innovation.

xaria
Download Presentation

Antidepressants & the Politics of Health David Healy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Antidepressants & the Politics of Health David Healy

  2. All Trials GSK House of Common

  3. All Trials GSK House of Common If treatments work , they could be made available for free, they would enhance national productivity, and encourage innovation

  4. We are not in favour of placing anonymized individual patient-level data (IPD) in the public domain in an unrestricted manner… specific individuals sd be provided with controlled access to IPD through carefully managed and secure “safe havens”. Access should be facilitated by an independent “gatekeeper” responsible for insuring that the data … makes a useful contribution to scientific understanding Page 4

  5. We are not in favour of placing anonymized individual patient-level data (IPD) in the public domain in an unrestricted manner… specific individuals sd be provided with controlled access to IPD through carefully managed and secure “safe havens”. Access should be facilitated by an independent “gatekeeper” responsible for insuring that the data … makes a useful contribution to scientific understanding

  6. Stone and Jones Nov 17th 2006: FDA

  7. EVIDENT BASED MEDICINE

  8. EVIDENCE BASED MEDICINE

  9. Efficacy 6 Week Trials Rating Scales 2 positive out of 10 trials 100 publications Accentuate the positive All effect down to alcohol Mexican alcohol Gin, whiskey, beer, wine & rum Scotch, Irish & Japanese whiskey NICE Guideline endorsed Cost-Utility Analyses ++ Take life long - NNTs

  10. Side Effects 6-8 week trials 10% or more? Anecdotes – Disregard Pregnancy Suicide & Violence Dependence - illness LFTs - depression Prescription only Med Amphetamines Risk laundering Stockholm syndrome Legal liability

  11. All RCTs do harm Some may also benefit

  12. R.A Fisher, Design of Experiments. Edinburgh: 1935. Randomization Statistical Significance

  13. Statistical Significance means • You know what you are doing • You get the same result each time

  14. Statistical Significance means • You know what you are doing • You get the same result each time

  15. DRUGS • 100 Effects • Surrogates • Individual Patient • FERTILIZERS • 1 Effect • Hard Outcomes • Population Effect Logically Ungrounded Placebo Fertilizer?

  16. Louis Lasagna Placebo Response Controlled Trials Informed Consent - Confidentiality

  17. Thalidomide Randomized Controlled Trials Efficacy & Safety

  18. The days when a company would go to skilled doctors and give them a new drug and ask them to try it on some different patients seem gone. Is this cause for celebration or depression? In contrast to my role in the 1950s which was trying to convince people to do controlled trials, now I find myself telling people that it’s not the only way to truth. LOUIS LASAGNA

  19. Streptomycin – Because of RCTs Antibiotics Penicillins Diuretics Furosemide Hypoglycemics Metformin Antihypertensives Thiazides Antihistamines Diphenhydramine, Chlorphenamine Antipsychotics Clozapine, Haloperidol Antidepressants Imipramine Minor Tranquilizers Diazepam Stimulants Dexamphetamine, Ritalin Steroids Prednisone Contraceptives COC – The Pill Chemotherapies Anticonvulsants Valproate, Phenytoin Analgesics Morphine, NSAIDs Vaccines Polio, Smallpox

  20. EVIDENT BASED MEDICINE

  21. CONFOUNDING

  22. RANDOMIZED CONTROLLED DISEASE TRIALS Mild-Mod Depression SSRI Suicidal Acts: screening Run-in/wash out randomization drug pbo Start treatment Stop treatment follow-up

  23. RANDOMIZED CONTROLLED DISEASETRIALS Severe Depression Imipramine Suicidal Acts: screening Run-in/wash out randomization drug pbo Start treatment Stop treatment follow-up

  24. RANDOMIZED CONTROLLED DISEASE TRIALS Mild-Mod Depression Imipramine Suicidal Acts: screening Run-in/wash out randomization drug pbo Start treatment Stop treatment follow-up

  25. Every Time Drug & Illness Produce the same Outcome Anti-arrhythmics Arrhythmias Anti-asthmatics Wheezing Rosiglitazone Diabetes – heart attacks Byetta – Januvia Diabetes – pancreatitis Antidepressant Suicide Benefit It’s the Disease not the Drug if a Hazard It’s the Drug not the Disease if a Benefit

  26. GlaxoSmithKline - 2006 Paroxetine Suicidal Acts 11 v 0 Placebo Suicidal Acts N = 2943 N = 1671

  27. GlaxoSmithKline - 2006 Paroxetine Suicidal Acts 11 v 0 Placebo Suicidal Acts N = 2943 N = 1671 RR > 6.0 Paroxetine Suicidal Acts 36 v 35 Placebo Suicidal Acts N = 147 N = 147

  28. GSK - 2006 Paroxetine Suicidal Acts 11 v 0 Placebo Suicidal Acts N = 2943 N = 1671 RR > 6.0 Paroxetine Suicidal Acts 47 v 35 Placebo Suicidal Acts N = 3090 N = 1818 RR < 0.80

  29. Randomization controls Fertilizer Confounders It generates ignorance about ignorance About Medicines RCTs give weaker drugs Standardized care Fertilizers - no longer Poisons All RCTs do harm, some may also be of benefit

  30. MEDICULTURE not MEDICINE

  31. “If one came to the conclusion that the only way to find out the truth about a medication was to use a controlled clinical trial, it would mean not that the pendulum had swung too far but that it had come completely off its hook” Louis Lasagna Evidence Based Medicine has become synonymous with RCTs even though such trials invariably fail to tell the physician what he or she wants to know which is which drug is best for Mr Jones or Ms Smith – not what happens to a non-existent average person

  32. Thalidomide Randomized Controlled Trials Efficacy & Safety

  33. August 5th

  34. ALLTRIALS v RIAT

  35. We are not in favour of placing anonymized individual patient-level data (IPD) in the public domain in an unrestricted manner… specific individuals should be provided with controlled access to IPD through carefully managed and secure “safe havens”. Access should be facilitated by an independent “gatekeeper” responsible for insuring that the data … makes a useful contribution to scientific understanding

More Related