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Placebo Effect:

Translation
The graph to the right describes a study of 80 patients with irritable bowel syndrome (IBS). Patients either got no treatment or were given a placebo pill.
Lena Touny, Christopher "Gabby" Vento, Daniella Gamboa Pabon   +2 more
doaj   +2 more sources

Presenting a sham treatment as personalised increases the placebo effect in a randomised controlled trial. [PDF]

Elife, 2023
Sandra DA, Olson JA, Langer EJ, Roy M.
europepmc   +2 more sources

LISTENING TO THE PLACEBO, OR HOW TO FIND OUT WHY TREATMENTS WORK [PDF]

Papeles del Psicólogo, 2020
The placebo effect is powerful and has been proved effective in multiple studies, competing even with well-established treatments. It is absolutely not an unspecific or inert effect.
Miguel A. Vallejo Pareja, Laura Vallejo-Slocker   +1 more
doaj   +1 more source

To sense or dissent

Global Rheumatology, 2023
Interested in the therapeutic response that I usually predict in my chronically ill patients, I bring to the fore a phenomenon that is enigmatic in itself: the placebo effect.
Alberto Palacios-Boix
doaj   +1 more source

Placebo response and effect in randomized clinical trials: meta-research with focus on contextual effects

Trials, 2021
Background Contextual effects (i.e., placebo response) refer to all health changes resulting from administering an apparently inactive treatment. In a randomized clinical trial (RCT), the overall treatment effect (i.e., the post-treatment effect in the ...
Sigurlaug H. Hafliðadóttir, Carsten B. Juhl, Sabrina M. Nielsen, Marius Henriksen, Ian A. Harris, Henning Bliddal, Robin Christensen   +6 more
doaj   +1 more source

European Headache Federation recommendations for placebo and nocebo terminology

The Journal of Headache and Pain, 2020
Background and aim Despite recent publications, practitioners remain unfamiliar with the current terminology related to the placebo and nocebo phenomena observed in clinical trials and practice, nor with the factors that modulate them.
Dimos D. Mitsikostas, Charlotte Blease, Elisa Carlino, Luana Colloca, Andrew L. Geers, Jeremy Howick, Andrea W. M. Evers, Magne A. Flaten, John M. Kelley, Irving Kirsch, Regine Klinger, Antoinette MaassenVanDenBrink, Daniel E. Moerman, Petros P. Sfikakis, Lene Vase, Tor D. Wager, Fabrizio Benedetti, on behalf of the European Headache Federation   +17 more
doaj   +1 more source

Influence on study outcomes of an inpatient study by the behavior of the study staff (PINgPOng): study protocol for a randomized clinical trial

Trials, 2022
Background The placebo effect as the symptom improvement following inert treatments is a fixed component of RCTs to differentiate between specific effects of the tested pharmacological substance from other unspecific effects.
Martin Coenen, Ulrike Bingel, Matthias Zunhammer, Maria Soledad Berdaguer, Christine Fuhrmann, Rolf Fimmers, Jens Rengelshausen, Gunther Hartmann, Manfred Schedlowski, Christoph Coch   +9 more
doaj   +1 more source

Examining the ‘Cosmetics Placebo Effect’ [PDF]

, 2019
Previous studies have found a positive effect of cosmetics on certain behavioral measures, such as the tip given to waitresses by male patrons. These studies have employed confederates who usually wear cosmetics.
Batres, Carlota, DeAngelis, Caroline G., Kramer, Sarah S., Russell, Richard   +3 more
core   +2 more sources

The placebo response rate and nocebo events in obesity pharmacological trials. A systematic review and meta-analysis

EClinicalMedicine, 2022
Summary: Background: There is a growing number of trials examining the effectiveness of pharmacotherapies for obesity, however, little is known about placebo and nocebo effect in these trials. Hence, we sought to examine the effect of placebo in obesity
Yip Han Chin, Cheng Han Ng, Nicholas WS Chew, Gwyneth Kong, Wen Hui Lim, Darren Jun Hao Tan, Kai En Chan, Ansel Tang, Daniel Q Huang, Mark Y Chan, Gemma Figtree, Jiong-Wei Wang, Asim Shabbir, Chin Meng Khoo, Vincent Wai-Sun Wong, Dan Yock Young, Mohammad Shadab Siddiqui, Mazen Noureddin, Arun Sanyal, David E. Cummings, Nicholas Syn, Mark Dhinesh Muthiah   +21 more
doaj   +1 more source

Antidepressant drugs and the response in the placebo group: the real problem lies in our understanding of the issue [PDF]

, 2012
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.
Bech P, Fountoulakis KN, Hans-Jürgen Möller, Kirsch I, Kirsch I, Kirsch I, Konarski JZ, Konstantinos N Fountoulakis, Moncrieff J   +8 more
core   +1 more source