Antidepressant drugs and the response in the placebo group: the real problem lies in our understanding of the issue
Abstract
In a recent paper, Horder and colleagues ( Horder et al., 2010 , J Psychopharmacol 25: 1277–1288) have suggested that the mainproblem in the Kirsch analysis is methodological. We argue that the results are similar irrespective of the method used. In our opinion the data suggest that placebo and drug effects are non-additive: antidepressants act independently of depression severity, while the placebo effect is present only in milder cases. While the response in the placebo group is due to unstable ‘noise’ and ‘artefacts’, the medication effect is reliable, valid and stable.
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The concept of remission provides only a vague theoretical definition that may be influenced by the psychometric limitations of available instruments.
“However, the concept of remission provides only a vague theoretical definition that may be influenced by the psychometric limitations of available instruments [52, 53].”
From Cognitive remission: a novel objective for the treatment of major depression? (2016) · cites this paper as [53]
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Cites
Kirsch, I., Deacon, B. J., Huedo-Medina, T. B., Scoboria, A., Moore, T. J., & Johnson, B. T. (2008) · PLoS Medicine · doi:10.1371/journal.pmed.0050045 · Cited by 2,442 · see citing works
Selective publication of antidepressant trials and its influence on apparent efficacy
Turner, E. H., Matthews, A. M., Linardatos, E., Tell, R. A., & Rosenthal, R. (2008) · New England Journal of Medicine · doi:10.1056/nejmsa065779 · Cited by 2,435 · see citing works
Antidepressant Drug Effects and Depression Severity: A Patient-Level Meta-analysis
Fournier, J. C., DeRubeis, R. J., Hollon, S. D., Dimidjian, S., Amsterdam, J. D., Shelton, R. C., & Fawcett, J. (2010) · JAMA · doi:10.1001/jama.2009.1943 · Cited by 2,009 · see citing works
Cipriani, A., Furukawa, T. A., Salanti, G., Geddes, J. R., Higgins, J. P., Churchill, R., Watanabe, N., Nakagawa, A., Omori, I. M., McGuire, H., et al. (2009) · The Lancet · doi:10.1016/s0140-6736(09)60046-5 · Cited by 1,654 · see citing works
Components of placebo effect: randomised controlled trial in patients with irritable bowel syndrome
Kaptchuk, T. J., Kelley, J. M., Conboy, L. A., Davis, R. B., Kerr, C. E., Jacobson, E. E., Kirsch, I., Schyner, R. N., Nam, B. H., Nguyen, L. T., et al. (2008) · BMJ · doi:10.1136/bmj.39524.439618.25 · Cited by 1,196 · see citing works
The Functional Neuroanatomy of the Placebo Effect
Mayberg, H. S., Silva, J. A., Brannan, S., Tekell, J. L., Mahurin, R. K., McGinnis, S. M., & Jerabek, P. A. (2002) · American Journal of Psychiatry · doi:10.1176/appi.ajp.159.5.728 · Cited by 718 · see citing works
Statistic Notes: Regression towards the mean
Bland, J. M., & Altman, D. G. (1994) · BMJ · doi:10.1136/bmj.308.6942.1499 · Cited by 547 · see citing works
The emperor's new drugs: exploding the antidepressant myth
Kirsch, I. (2010) · Choice Reviews Online · doi:10.5860/choice.48-1164 · Cited by 392 · see citing works
Cuijpers, P., Smit, F., Bohlmeijer, E., Hollon, S. D., & Andersson, G. (2010) · British Journal of Psychiatry · doi:10.1192/bjp.bp.109.066001 · Cited by 391 · see citing works
Statistics Notes: Some examples of regression towards the mean
Bland, J. M., & Altman, D. G. (1994) · BMJ · doi:10.1136/bmj.309.6957.780 · Cited by 381 · see citing works
Rush, A. J. (2007) · American Journal of Psychiatry · doi:10.1176/ajp.2007.164.2.201 · Cited by 353 · see citing works
Active placebos versus antidepressants for depression
Moncrieff, J., Wessely, S., & Hardy, R. (2004) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd003012.pub2 · Cited by 342 · see citing works
Efficacy of antidepressants in adults
Moncrieff, J., & Kirsch, I. (2005) · BMJ · doi:10.1136/bmj.331.7509.155 · Cited by 329 · see citing works
Martin, S. D., Martin, E., Rai, S. S., Richardson, M. A., & Royall, R. (2001) · Archives of General Psychiatry · doi:10.1001/archpsyc.58.7.641 · Cited by 321 · see citing works
Psychotherapy for chronic major depression and dysthymia: A meta-analysis
Cuijpers, P., van Straten, A., Schuurmans, J., van Oppen, P., Hollon, S. D., & Andersson, G. (2010) · Clinical Psychology Review · doi:10.1016/j.cpr.2009.09.003 · Cited by 320 · see citing works
Does a Placebo Run-In or a Placebo Treatment Cell Affect the Efficacy of Antidepressant Medications?
Trivedi, M. H., & Rush, A. J. (1994) · Neuropsychopharmacology · doi:10.1038/npp.1994.63 · Cited by 176 · see citing works
Placebo psychotherapy: Synonym or oxymoron?
Kirsch, I. (2005) · Journal of Clinical Psychology · doi:10.1002/jclp.20126 · Cited by 164 · see citing works
Bech, P., Cialdella, P., Haugh, M., Birkett, M. A., Hours, A. T., Boissel, J., & Tollefson, G. D. (2000) · The British Journal of Psychiatry · doi:10.1192/bjp.176.5.421 · Cited by 157 · see citing works
Konarski, J. Z., Kennedy, S. H., Segal, Z. V., Lau, M. A., Bieling, P., McIntyre, R. S., & Mayberg, H. S. (2009) · Journal of Psychiatry and Neuroscience · doi:10.1139/jpn.0923 · Cited by 155 · see citing works
Why antidepressants are not antidepressants: STEP‐BD, STAR*D, and the return of neurotic depression
Ghaemi, S. N. (2008) · Bipolar Disorders · doi:10.1111/j.1399-5618.2008.00639.x · Cited by 139 · see citing works
Efficacy of antidepressants: a re-analysis and re-interpretation of the Kirsch data
Fountoulakis, K. Ν., & Möller, H. (2010) · The International Journal of Neuropsychopharmacology · doi:10.1017/s1461145710000957 · Cited by 139 · see citing works
Self-citationAre drug and placebo effects in depression additive?
Kirsch, I. (2000) · Biological Psychiatry · doi:10.1016/s0006-3223(00)00832-5 · Cited by 137 · see citing works
Rating scales in depression: limitations and pitfalls
Bech, P. (2006) · Dialogues in Clinical Neuroscience · doi:10.31887/dcns.2006.8.2/pbech · Cited by 129 · see citing works
Active placebos versus antidepressants for depression (Review)
Moncrieff, J., Wessely, S. C., & Hardy, R. (2004) · UCL Discovery (University College London) · Cited by 125 · see citing works
Barbui, C., Furukawa, T. A., & Cipriani, A. (2007) · Canadian Medical Association Journal · doi:10.1503/cmaj.070693 · Cited by 121 · see citing works
Conditioning, Expectancy, and the Placebo Effect: Comment on Stewart-Williams and Podd (2004).
Kirsch, I. (2004) · Psychological Bulletin · doi:10.1037/0033-2909.130.2.341 · Cited by 111 · see citing works
Consistency of the placebo effect
Whalley, B., Hyland, M. E., & Kirsch, I. (2008) · Journal of Psychosomatic Research · doi:10.1016/j.jpsychores.2007.11.007 · Cited by 107 · see citing works
A Reevaluation of the Exclusion Criteria Used in Antidepressant Efficacy Trials
Posternak, M. A., Zimmerman, M. A., Keitner, G. I., & Miller, I. W. (2002) · American Journal of Psychiatry · doi:10.1176/appi.ajp.159.2.191 · Cited by 97 · see citing works
Bech, P. (2001) · The International Journal of Neuropsychopharmacology · doi:10.1017/s1461145701002565 · Cited by 81 · see citing works
Clinical trials and the response rate illusion
Kirsch, I., & Moncrieff, J. (2007) · Contemporary Clinical Trials · doi:10.1016/j.cct.2006.10.012 · Cited by 80 · see citing works
Bech, P., Tanghøj, P., Cialdella, P., Andersen, H. F., & Pedersen, A. G. (2004) · The International Journal of Neuropsychopharmacology · doi:10.1017/s1461145704004365 · Cited by 74 · see citing works
Modern Psychometrics in Clinimetrics: Impact on Clinical Trials of Antidepressants
Bech, P. (2004) · Psychotherapy and Psychosomatics · doi:10.1159/000076448 · Cited by 73 · see citing works
Antidepressants and the placebo response
Kirsch, I. (2009) · Epidemiology and Psychiatric Sciences · doi:10.1017/s1121189x00000282 · Cited by 70 · see citing works
Unipolar late-onset depression: A comprehensive review
Fountoulakis, K. Ν., O'Hara, R. M., Iacovides, A., Camilleri, C. P., Kaprinis, S. G., KAPRINIS, G. S., & Yesavage, J. A. (2003) · Annals of General Hospital Psychiatry · doi:10.1186/1475-2832-2-11 · Cited by 67 · see citing works
Self-citationIs the antidepressive effect of second-generation antidepressants a myth?
Bech, P. (2009) · Psychological Medicine · doi:10.1017/s0033291709006102 · Cited by 59 · see citing works
Placebo, Prozac and PLoS: significant lessons for psychopharmacology
Horder, J., Matthews, P., & WALDMANN, R. J. (2010) · Journal of Psychopharmacology · doi:10.1177/0269881110372544 · Cited by 57 · see citing works
Möller, H. J. (2008) · European Archives of Psychiatry and Clinical Neuroscience · doi:10.1007/s00406-008-0836-5 · Cited by 53 · see citing works
Self-citationCommittee for Medicinal Products for Human Use (CHMP) assessment on efficacy of antidepressants
Broich, K. (2009) · European Neuropsychopharmacology · doi:10.1016/j.euroneuro.2009.01.012 · Cited by 51 · see citing works
Gelfand, S., Ullmann, L. P., & Krasner, L. (1963) · The Journal of Nervous and Mental Disease · doi:10.1097/00005053-196304000-00009 · Cited by 49 · see citing works
Challenging Received Wisdom: Antidepressants and the Placebo Effect
Kirsch, I. (2020) · McGill Journal of Medicine · doi:10.26443/mjm.v11i2.571 · Cited by 46 · see citing works
Evidence-based medicine in psychopharmacotherapy: possibilities, problems and limitations
Möller, H., & Maier, W. (2009) · European Archives of Psychiatry and Clinical Neuroscience · doi:10.1007/s00406-009-0070-9 · Cited by 36 · see citing works
Self-citationMcAllister-Williams, H. (2008) · Evidence-Based Mental Health · doi:10.1136/ebmh.11.3.66 · Cited by 35 · see citing works
Principle standards and problems regarding proof of efficacy in clinical psychopharmacology
Möller, H., & Broich, K. (2009) · European Archives of Psychiatry and Clinical Neuroscience · doi:10.1007/s00406-009-0071-8 · Cited by 32 · see citing works
Self-citationThe antidepressant debate and the balanced placebo trial design: An ethical analysis
Waring, D. R. (2008) · International Journal of Law and Psychiatry · doi:10.1016/j.ijlp.2008.09.001 · Cited by 28 · see citing works
Möller, H. (2009) · The World Journal of Biological Psychiatry · doi:10.1080/15622970903101665 · Cited by 24 · see citing works
Self-citationDurai, R., & Hoque, H. (2008) · British Journal of Hospital Medicine · doi:10.12968/hmed.2008.69.6.29632 · Cited by 20 · see citing works
Antidepressant drugs 'work', but they are not clinically effective.
Durai, R., & Hoque, H. (2008) · PubMed · Cited by 17 · see citing works
Is evidence sufficient for evidence-based medicine?
Möller, H. (2009) · European Archives of Psychiatry and Clinical Neuroscience · doi:10.1007/s00406-009-0048-7 · Cited by 11 · see citing works
Self-citationKirsch, I., & Johnson, B. T. (2008) · BMJ · doi:10.1136/bmj.39520.483565.3a · Cited by 4 · see citing works
Geriatric depression: a challenge for the 21st century
Fountoulakis, K. Ν., Kaprinis, S. G., & KAPRINIS, G. S. (2004) · Aging Clinical and Experimental Research · doi:10.1007/bf03327381 · Cited by 3 · see citing works
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- Fountoulakis KN, O'Hara R, Iacovides A, et al. (2003) Unipolar lateonset depression: A comprehensive review. Ann Gen Hosp Psychiatry 2: 11.
Cited by
Sorted by citations
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Bortolato, B., Miskowiak, K. W., Köhler, C. A., Maes, M., Fernandes, B. S., Berk, M., & Carvalho, A. F. (2016) · BMC Medicine · doi:10.1186/s12916-016-0560-3 · Cited by 252 · see citing works
Walker, F. R. (2013) · Neuropharmacology · doi:10.1016/j.neuropharm.2012.10.002 · Cited by 175 · see citing works
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Fountoulakis, K. N., Saitis, A., & Schatzberg, A. F. (2025) · American Journal of Psychiatry · doi:10.1176/appi.ajp.20240515 · Cited by 90 · see citing works
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Vöhringer, P. A., & Ghaemi, S. N. (2011) · Clinical Therapeutics · doi:10.1016/j.clinthera.2011.11.019 · Cited by 81 · see citing works
Abandoning personalization to get to precision in the pharmacotherapy of depression
Perlis, R. H. (2016) · World Psychiatry · doi:10.1002/wps.20345 · Cited by 78 · see citing works
Randomised controlled trials may underestimate drug effects: balanced placebo trial design
Lund, K., Vase, L., Petersen, G. L., Jensen, T. S., & Finnerup, N. B. (2014) · PLoS ONE · doi:10.1371/journal.pone.0084104 · Cited by 72 · see citing works
“The validity of this model has recently been questioned [3–6].”
BackgroundNo role for initial severity on the efficacy of antidepressants: results of a multi-meta-analysis
Fountoulakis, K. Ν., Veroniki, A. A., Siamouli, M., & Möller, H. (2013) · Annals of General Psychiatry · doi:10.1186/1744-859x-12-26 · Cited by 66 · see citing works
Self-citationMancini, M., Wade, A. G., Perugi, G., Lenox‐Smith, A., & Schacht, A. (2014) · Journal of Psychiatric Research · doi:10.1016/j.jpsychires.2014.01.001 · Cited by 28 · see citing works
Exercise as antidepressant treatment: Time for the transition from trials to clinic?
Ekkekakis, P., & Murri, M. B. (2017) · General Hospital Psychiatry · doi:10.1016/j.genhosppsych.2017.04.008 · Cited by 10 · see citing works
RetractedWhitlock, M., Woodward, P. W., & Alexander, R. (2019) · PubMed Central · Cited by 21 · see citing works
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Fountoulakis, K. Ν., Höschl, C., Kasper, S. F., López-Ibor, J. J., & Möller, H. (2013) · Annals of General Psychiatry · doi:10.1186/1744-859x-12-11 · Cited by 19 · see citing works
Self-citationBurning issues in the meta-analysis of pharmaceutical trials for depression
Fountoulakis, K. Ν., Samara, M. T., & Siamouli, M. (2013) · Journal of Psychopharmacology · doi:10.1177/0269881113504014 · Cited by 17 · see citing works
Self-citationPanteleimon Ekkekakis, A. (2020) · Kinesiology Review · doi:10.1123/kr.2020-0036 · Cited by 17 · see citing works
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Fountoulakis, K. N., Nimatoudis, I., & Stahl, S. M. (2019) · Springer eBooks · doi:10.1007/978-3-030-18323-3_13 · Cited by 17 · see citing works
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Preda, A. (2013) · Journal of Pharmacovigilance · doi:10.4172/2329-6887.1000e106 · Cited by 6 · see citing works
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Luciano, M., Carmassi, C., & Albert, U. (2022) · Comprehensive approach to psychiatry · doi:10.1007/978-3-030-98301-7_13 · Cited by 6 · see citing works
Rihmer, Z., Döme, P., Baldwin, D. S., & Gonda, X. (2012) · European Neuropsychopharmacology · doi:10.1016/j.euroneuro.2012.03.002 · Cited by 5 · see citing works
Fountoulakis, K. Ν. (2021) · Springer eBooks · doi:10.1007/978-3-030-86541-2_25 · Cited by 3 · see citing works
Self-citationFountoulakis, K. N. (2014) · Springer eBooks · doi:10.1007/978-3-642-37216-2_16 · Cited by 3 · see citing works
Self-citationNelson, J. C., Zhang, Q., Kelin, K., Eriksson, E., Deberdt, W. G., & Berk, M. (2013) · Current Medical Research and Opinion · doi:10.1185/03007995.2013.795140 · Cited by 3 · see citing works
Fountoulakis, K. Ν. (2016) · Australasian Psychiatry · doi:10.1177/1039856216671651 · Cited by 2 · see citing works
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Carcione, A. (2011) · Giornale italiano di psicopatologia/Journal of psychopathology/Italian journal of psychopathology · Cited by 2 · see citing works
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Fountoulakis, K. Ν. (2026) · Translational Psychiatry · doi:10.1038/s41398-026-03943-5 · Cited by 1 · see citing works
Self-citation(2015) · doi:10.1201/b19089-1
Sunzeri, F. (2026) · Springer eBooks · doi:10.1007/978-3-032-14465-2_16
- Authors
- Fountoulakis, K. N., & Möller, H.-J.
- Affiliations
- Department of Psychiatry, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Ludwig-Maximilians-Universität München (DE)
- ORCID
- Möller, Hans-Jürgen
- Venue
- Journal of Psychopharmacology
- Publisher
- SAGE Publications
- Published
- 2011-09-17
- Volume
- 26
- Issue
- 5
- Pages
- 744-750
- ISSN
- 0269-8811 (ISSN-L)
- 1461-7285
- OpenAlex
- W2121998647
- Cited by
- 30
- References
- 50
- Citations by year
- 2026: 2 · 2025: 1 · 2022: 1 · 2021: 1 · 2020: 1 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 4 · 2015: 2 · 2014: 3 · 2013: 6 · 2012: 2
- FWCI
- 2.11
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Psychopharmacology (publishedVersion)
- PubMed (publishedVersion)
- Open access LMU (Ludwid Maxmilian's Universitat Munchen) (submittedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Pain Management and Placebo Effect
- Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
- Social Sciences › Psychology › Clinical Psychology › Psychotherapy Techniques and Applications
- Keywords
- antidepressants, placebo response, placebo effect, antidepressant efficacy, depression severity, measurement artifacts
- MeSH terms
- Antidepressive Agents, Depression, Humans, Research Design, Statistics as Topic, Placebo Effect, Randomized Controlled Trials as Topic, Artifacts, Comprehension
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