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Westendorp J, van Vliet LM, Meeuwis SH, Olde Hartman TC, Sanders ARJ, Jutten E, Dirven M, Peerdeman KJ, Evers AWM. Optimizing placebo and minimizing nocebo effects through communication: e-learning and virtual reality training development. BMC MEDICAL EDUCATION 2024; 24:707. [PMID: 38951784 PMCID: PMC11218054 DOI: 10.1186/s12909-024-05671-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 06/18/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND The effects of many treatments in healthcare are determined by factors other than the treatment itself. Patients' expectations and the relationship with their healthcare provider can significantly affect treatment outcomes and thereby play a major role in eliciting placebo and nocebo effects. We aim to develop and evaluate an innovative communication training, consisting of an e-learning and virtual reality (VR) training, for healthcare providers across all disciplines, to optimize placebo and minimize nocebo effects through healthcare provider-patient communication. The current paper describes the development, mid-term evaluation, optimization, and final evaluation of the communication training, conducted in The Netherlands. METHODS The development of both the e-learning and the VR training consisted of four phases: 1) content and technical development, 2) mid-term evaluation by healthcare providers and placebo/communication researchers, 3) optimization of the training, and 4) final evaluation by healthcare providers. To ensure the success, applicability, authenticity, and user-friendliness of the communication training, there was ongoing structural collaboration with healthcare providers as future end users, experts in the field of placebo/communication research, and educational experts in all phases. RESULTS Placebo/communication researchers and healthcare providers evaluated the e-learning positively (overall 7.9 on 0-10 scale) and the content was perceived as useful, accessible, and interesting. The VR training was assessed with an overall 6.9 (0-10 scale) and was evaluated as user-friendly and a safe method for practicing communication skills. Although there were some concerns regarding the authenticity of the VR training (i.e. to what extent the virtual patient reacts like a real patient), placebo and communication researchers, as well as healthcare providers, recognized the significant potential of the VR training for the future. CONCLUSIONS We have developed an innovative and user-friendly communication training, consisting of an e-learning and VR training (2D and 3D), that can be used to teach healthcare providers how to optimize placebo effects and minimize nocebo effects through healthcare provider-patient communication. Future studies can work on improved authenticity, translate the training into other languages and cultures, expand with additional VR cases, and measure the expected effects on providers communication skills and subsequently patient outcomes.
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Affiliation(s)
- Janine Westendorp
- Health, Medical and Neuropsychology Unit, Institute of Psychology, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands.
- Center for Interdisciplinary Placebo Studies (IPS) Leiden, Leiden, The Netherlands.
| | - Liesbeth M van Vliet
- Health, Medical and Neuropsychology Unit, Institute of Psychology, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands
- Center for Interdisciplinary Placebo Studies (IPS) Leiden, Leiden, The Netherlands
| | - Stefanie H Meeuwis
- Health, Medical and Neuropsychology Unit, Institute of Psychology, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands
- Center for Interdisciplinary Placebo Studies (IPS) Leiden, Leiden, The Netherlands
| | - Tim C Olde Hartman
- Department of Primary and Community Care, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ariëtte R J Sanders
- General Medical Practice Van Lennep Huisartsenpraktijk, Driebergen, The Netherlands
| | - Eric Jutten
- The Simulation Crew (TSC), Nijmegen, The Netherlands
| | - Monique Dirven
- Dutch Institute for Rational Use of Medicine (IVM), Utrecht, The Netherlands
| | - Kaya J Peerdeman
- Health, Medical and Neuropsychology Unit, Institute of Psychology, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands
- Center for Interdisciplinary Placebo Studies (IPS) Leiden, Leiden, The Netherlands
| | - Andrea W M Evers
- Health, Medical and Neuropsychology Unit, Institute of Psychology, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands
- Center for Interdisciplinary Placebo Studies (IPS) Leiden, Leiden, The Netherlands
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Grosso F, Barbiani D, Cavalera C, Volpato E, Pagnini F. Risk factors associated with nocebo effects: A review of reviews. Brain Behav Immun Health 2024; 38:100800. [PMID: 39021437 PMCID: PMC11252084 DOI: 10.1016/j.bbih.2024.100800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 05/02/2024] [Accepted: 05/21/2024] [Indexed: 07/20/2024] Open
Abstract
Objective This meta-review aims to identify and categorize the risk factors that are associated with nocebo effects. The nocebo effect can exert a negative impact on treatment outcomes and have detrimental outcomes on health. Learning more about its potential predictors and risk factors is a crucial step to mitigating it. Methods Literature review studies about the risk factors for nocebo effects were searched through five databases (PubMed, Scopus, The Cochrane Library, PsycINFO, and Embase) and through grey literature. Methodological validity and risk of bias were assessed. We conducted a thematic analysis of the results of the forty-three included reviews. Results We identified nine categories of risk factors: prior expectations and learning; socio-demographic characteristics; personality and individual differences; neurodegenerative conditions; inflammatory conditions; communication of information and patient-physician relationship; drug characteristics; setting; and self-awareness. We also highlighted the main biochemical and neurophysiological mechanisms underlying nocebo effects. Conclusions Nocebo effects arise from expectations of adverse symptoms, particularly when triggered by previous negative experiences. A trusting relationship with the treating physician and clear, tailored treatment instructions can act as protective factors against a nocebo effect. Clinical implications are discussed.
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Affiliation(s)
- Francesca Grosso
- Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy
- IRCCS Fondazione Don Carlo Gnocchi, Milan, Italy
| | - Diletta Barbiani
- Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy
| | - Cesare Cavalera
- Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy
| | - Eleonora Volpato
- Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy
- IRCCS Fondazione Don Carlo Gnocchi, Milan, Italy
| | - Francesco Pagnini
- Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy
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Augustat N, Endres D, Mueller EM. Uncertainty of treatment efficacy moderates placebo effects on reinforcement learning. Sci Rep 2024; 14:14421. [PMID: 38909105 PMCID: PMC11193823 DOI: 10.1038/s41598-024-64240-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 06/06/2024] [Indexed: 06/24/2024] Open
Abstract
The placebo-reward hypothesis postulates that positive effects of treatment expectations on health (i.e., placebo effects) and reward processing share common neural underpinnings. Moreover, experiments in humans and animals indicate that reward uncertainty increases striatal dopamine, which is presumably involved in placebo responses and reward learning. Therefore, treatment uncertainty analogously to reward uncertainty may affect updating from rewards after placebo treatment. Here, we address whether different degrees of uncertainty regarding the efficacy of a sham treatment affect reward sensitivity. In an online between-subjects experiment with N = 141 participants, we systematically varied the provided efficacy instructions before participants first received a sham treatment that consisted of listening to binaural beats and then performed a probabilistic reinforcement learning task. We fitted a Q-learning model including two different learning rates for positive (gain) and negative (loss) reward prediction errors and an inverse gain parameter to behavioral decision data in the reinforcement learning task. Our results yielded an inverted-U-relationship between provided treatment efficacy probability and learning rates for gain, such that higher levels of treatment uncertainty, rather than of expected net efficacy, affect presumably dopamine-related reward learning. These findings support the placebo-reward hypothesis and suggest harnessing uncertainty in placebo treatment for recovering reward learning capabilities.
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Affiliation(s)
- Nick Augustat
- Department of Psychology, University of Marburg, Marburg, Germany.
| | - Dominik Endres
- Department of Psychology, University of Marburg, Marburg, Germany
| | - Erik M Mueller
- Department of Psychology, University of Marburg, Marburg, Germany
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4
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Reneman MF, Coenen P, Kuijer PPFM, van Dieën JH, Holtemann A, Igwesi-Chidobe CN, Parker R, Reezigt R, Stochkendahl MJ, Hoegh M. Tensions of Low-Back Pain and Lifting; Bridging Clinical Low-Back Pain and Occupational Lifting Guidelines. JOURNAL OF OCCUPATIONAL REHABILITATION 2024:10.1007/s10926-024-10210-1. [PMID: 38842652 DOI: 10.1007/s10926-024-10210-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Affiliation(s)
- Michiel F Reneman
- Department of Rehabilitation / Center for Rehabilitation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
| | - Pieter Coenen
- Department of Public and Occupational Health, Amsterdam UMC Location Vrije Universiteit, Amsterdam, The Netherlands
- Societal Participation and Health, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
- Musculoskeletal Health, Amsterdam Movement Sciences Research Institute, Amsterdam, The Netherlands
| | - P Paul F M Kuijer
- Department of Public and Occupational Health, Netherlands Center for Occupational Diseases, People and Work Outpatient Clinic, Amsterdam Public Health Research Institute, Amsterdam Movement Sciences Research Institute, Amsterdam UMC, Amsterdam, The Netherlands
| | - Jaap H van Dieën
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Andreas Holtemann
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Chinonso Nwamaka Igwesi-Chidobe
- School of Allied Health Professions and Midwifery, Faculty of Health Studies, University of Bradford, Bradford, UK
- Global Population Health (GPH) Research Group, University of Nigeria, Nsukka, Nigeria
| | - Romy Parker
- Pain Unit, Department of Anaesthesia and Perioperative Medicine, Faculty of Health Sciences, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
| | - Roland Reezigt
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences-Program Musculoskeletal Health, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Physiotherapy, Academy of Health, Hanze University of Applied Sciences, Groningen, The Netherlands
| | - Mette J Stochkendahl
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
- Chiropractic Knowledge Hub, Odense, Denmark
| | - Morten Hoegh
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
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Wilhelm M, Hermann C, Rief W, Schedlowski M, Bingel U, Winkler A. Working with patients' treatment expectations - what we can learn from homeopathy. Front Psychol 2024; 15:1398865. [PMID: 38860049 PMCID: PMC11163137 DOI: 10.3389/fpsyg.2024.1398865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 05/13/2024] [Indexed: 06/12/2024] Open
Abstract
The usual homeopathic remedy, "globules," does not contain any pharmacologically active ingredient. However, many patients and practitioners report beneficial effects of homeopathic treatment on various health outcomes. Experimental and clinical research of the last two decades analyzing the underlying mechanisms of the placebo effect could explain this phenomenon, with patients' treatment expectations as the predominant mechanism. Treatment expectations can be optimized through various factors, such as prior information, communication, and treatment context. This narrative review analyses how homeopathy successfully utilizes these factors. Subsequently, it is discussed what evidence-based medicine could learn from homeopathic practice to optimize treatment expectations (e.g., using an empathic, patient-centered communication style, deliberately selecting objects in practice rooms, or using clear treatment rituals and salient contextual stimuli) and thereby treatment effectiveness. Homeopathic remedy does not work beyond the placebo effect but is recommended or prescribed as an active treatment by those who believe in it. Thus, practitioners need to understand the manner in which homeopathy (as an example of inert treatment) works and are advised to reintegrate its underlying effective placebo mechanisms into evidence-based medicine. This promises to increase treatment efficacy, tolerability, satisfaction, and compliance with evidence-based treatments, and addresses the desires patients are trying to satisfy in homeopathy in an ethical, fully informed way that is grounded in evidence-based medicine.
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Affiliation(s)
- Marcel Wilhelm
- Department of Clinical Psychology, Philipps-University Marburg, Marburg, Germany
| | - Christiane Hermann
- Department of Clinical Psychology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Winfried Rief
- Department of Clinical Psychology, Philipps-University Marburg, Marburg, Germany
| | - Manfred Schedlowski
- Institute of Medical Psychology and Behavioral Immunobiology, University Clinic Essen, Essen, Germany
- Department of Clinical Neuroscience, Osher Center for Integrative Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ulrike Bingel
- Department of Neurology, Center for Translational Neuro-and Behavioral Sciences, University Medicine Essen, Essen, Germany
- Translational Pain Research Unit, University Medicine Essen, Essen, Germany
| | - Alexander Winkler
- Department of Clinical Psychology, Justus-Liebig-University Giessen, Giessen, Germany
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Schenk LA, Fadai T, Büchel C. How side effects can improve treatment efficacy: a randomized trial. Brain 2024:awae132. [PMID: 38701224 DOI: 10.1093/brain/awae132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 04/03/2024] [Accepted: 04/12/2024] [Indexed: 05/05/2024] Open
Abstract
While treatment side effects may adversely impact patients, they could also potentially function as indicators for effective treatment. In this study, we investigated whether and how side effects can trigger positive treatment expectations and enhance treatment outcomes. In this preregistered trial (DRKS00026648), 77 healthy participants were made to believe that they will receive fentanyl nasal sprays before receiving thermal pain in a controlled experimental setting. However, nasal sprays did not contain fentanyl, rather they either contained capsaicin to induce a side effect (mild burning sensation) or saline (inert). After the first session, participants were randomized to two groups and underwent functional magnetic resonance imaging (fMRI). One group continued to believe that the nasal sprays could contain fentanyl while the other group was explicitly informed that no fentanyl was included. This allowed for the independent manipulation of the side effects and the expectation of pain relief. Our results revealed that nasal sprays with a side effect lead to lower pain than inert nasal sprays without side effects. The influence of side effects on pain was dependent on individual beliefs about how side effects are related to treatment outcome, as well as on expectations about received treatment. FMRI data indicated an involvement of the descending pain modulatory system including the anterior cingulate cortex and the periaqueductal gray during pain after experiencing a nasal spray with side effects. In summary, our data show that mild side effects can serve as a signal for effective treatment thereby influencing treatment expectations and outcomes, which is mediated by the descending pain modulatory system. Using these mechanisms in clinical practice could provide an efficient way to optimize treatment outcome. In addition, our results indicate an important confound in clinical trials, where a treatment (with potential side effects) is compared to placebo.
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Affiliation(s)
- Lieven A Schenk
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Tahmine Fadai
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Christian Büchel
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
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Szigeti B, Heifets BD. Expectancy Effects in Psychedelic Trials. BIOLOGICAL PSYCHIATRY. COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2024; 9:512-521. [PMID: 38387698 DOI: 10.1016/j.bpsc.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/24/2024]
Abstract
Clinical trials of psychedelic compounds like psilocybin, lysergic acid diethylamide (LSD), and N,N-dimethyltrptamine (DMT) have forced a reconsideration of how nondrug factors, such as participant expectations, are measured and controlled in mental health research. As doses of these profoundly psychoactive substances increase, so does the difficulty in concealing the treatment condition in the classic double-blind, placebo-controlled trial design. As widespread public enthusiasm for the promise of psychedelic therapy grows, so do questions regarding whether and how much trial results are biased by positive expectancy. First, we review the key concepts related to expectancy and its measurement. Then, we review expectancy effects that have been reported in both micro- and macrodose psychedelic trials from the modern era. Finally, we consider expectancy as a discrete physiological process that can be independent of, or even interact with, the drug effect. Expectancy effects can be harnessed to improve treatment outcomes and can also be actively managed in controlled studies to enhance the rigor and generalizability of future psychedelic trials.
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Affiliation(s)
- Balázs Szigeti
- Translational Psychedelic Research Program, University of California San Francisco, San Francisco, California; Centre for Psychedelic Research, Imperial College London, London, UK
| | - Boris D Heifets
- Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California; Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California.
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Krahé C, Koukoutsakis A, Fotopoulou A. Updating beliefs about pain following advice: Trustworthiness of social advice predicts pain expectations and experience. Cognition 2024; 246:105756. [PMID: 38442585 PMCID: PMC7616089 DOI: 10.1016/j.cognition.2024.105756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 02/09/2024] [Accepted: 02/20/2024] [Indexed: 03/07/2024]
Abstract
Prior expectations influence pain experience. These expectations, in turn, rely on prior pain experience, but they may also be socially influenced. Yet, most research has focused on self rather than social expectations about pain, and hardly any studies examined their combined effects on pain. Here, we adopted a Bayesian learning perspective to investigate how explicitly communicated social expectations ('advice about pain tolerance') affect own pain expectations, and ultimately pain tolerance, under varying conditions of social epistemic uncertainty (trustworthiness of the advice). N = 72 female participants took part in a coldpressor (cold water) task before (self-learning baseline) and after (socially-influenced learning) receiving advice about their likely pain tolerance from a confederate, the trustworthiness of whom was experimentally manipulated. We used path analysis to test the hypothesis that social advice from a highly trustworthy confederate would influence participants' expectations about pain more than advice from a less trustworthy source, and that the degree of this social influence would in turn predict pain tolerance. We further used a simplified, Bayesian learning, computational approach for explicit belief updating to examine the role of latent parameters of precision optimisation in how participants subsequently changed their future pain expectations (prospective posterior beliefs) based on the combined effect of the confederate's advice on their own pain expectations, and their own task experience. Results confirmed that participants adjusted their pain expectations towards the confederate's advice more in the high- vs. low-trustworthiness condition, and this advice taking predicted their pain tolerance. Furthermore, the confederate's trustworthiness influenced how participants weighted the confederate's advice in relation to their own expectations and task experience in forming prospective posterior beliefs. When participants received advice from a less trustworthy confederate, their own sensory experience was weighted more highly than their socially-influenced prior expectations. Thus, explicit social advice appears to impact pain by influencing one's own pain expectations, but low social trustworthiness leads to these expectations becoming more malleable to novel, sensory learning.
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Affiliation(s)
- Charlotte Krahé
- Department of Psychology, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom.
| | - Athanasios Koukoutsakis
- Research Department of Clinical, Educational and Health Psychology, University College London, London, United Kingdom
| | - Aikaterini Fotopoulou
- Research Department of Clinical, Educational and Health Psychology, University College London, London, United Kingdom
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Mohd Sani N, Aziz Z, Kamarulzaman A. Use of Biosimilars: A Systematic Review of Published Position Statements and Recommendations from Health Organisations and Societies. BioDrugs 2024; 38:405-423. [PMID: 38472644 DOI: 10.1007/s40259-024-00649-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Hesitation about using biosimilars still exists among healthcare professionals (HCPs), despite extensive experience with their use. Globally, several health organisations and societies from various specialties have issued biosimilar position statements to guide the use of biosimilars in their specialties. However, it is uncertain how similar or different their positions or recommendations are or whether these positions have evolved with the increased experience and availability of new evidence. OBJECTIVES The study aimed to describe and assess the recommendations of published position statements regarding several aspects of biosimilars across specialties and determine whether these positions have changed with the emergence of new evidence. METHODS We systematically searched for published position statements of biosimilars in online databases and included statements written in English. The search was from the inception of the databases until May 2023. Two reviewers independently extracted the data. Only position statements that included recommendations to guide the use of biosimilars in clinical practice and were issued by health organisations and societies, including expert panels, were included. We synthesised recommendations on five aspects: prescribing practice, extrapolation of indication, interchangeability, treatment initiation with biosimilars in biologic-naïve patients, and pharmacovigilance. RESULTS The review included 25 papers involving eight specialties, 16 of which were from European countries, 1 from an international organisation representing 49 countries, and 6 from various countries. The papers were published between 2009 and 2020, with 19 published between 2015 and 2020. Of the five aspects of biosimilars assessed, nearly half (11 of 25) of the papers at the time they were published did not base their positions on a scientific or evidence-based approach. Only 4 of the 25 position papers were identified as revisions of their previous papers. With increasing experience in biosimilars and the emergence of new evidence, about 60% (16 of 25) of the papers contained outdated recommendations, particularly on two aspects. They were extrapolations of indications and interchangeability (including switching). The recommendations for most papers for three other aspects were still appropriate. These were prescribing biosimilars by their brand name and active ingredient, initiating treatment with biosimilars in biologic-naïve patients, and monitoring the long-term safety of biosimilars through pharmacovigilance. For four of the revised papers, their position evolved from opposing indication extrapolation for biosimilars to accepting it, while the position of two papers shifted from not recommending biosimilar switching to permitting the practice. Meanwhile, most papers were against automatic substitution by pharmacists because the evidence for this practice was still limited. CONCLUSIONS Across specialties, the variability among the position statements is seen for extrapolation of indications for biosimilars and interchangeability (including switching). This requires a revision, considering the latest evidence and growing experience with the use of biosimilars in extrapolated indications and with switching.
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Affiliation(s)
- Noraisyah Mohd Sani
- Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
- National Pharmaceutical Regulatory Agency, Ministry of Health Malaysia, Petaling Jaya, Malaysia
| | - Zoriah Aziz
- Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia.
- Faculty of Pharmacy, MAHSA University, Jenjarom, Malaysia.
| | - Adeeba Kamarulzaman
- Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
- Monash University Malaysia, Subang Jaya, Malaysia
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Wu H, Brooke-Wavell K, Fong DTP, Paquette MR, Blagrove RC. Do Exercise-Based Prevention Programs Reduce Injury in Endurance Runners? A Systematic Review and Meta-Analysis. Sports Med 2024; 54:1249-1267. [PMID: 38261240 PMCID: PMC11127851 DOI: 10.1007/s40279-024-01993-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
BACKGROUND Endurance running is a popular sport and recreational activity yet is associated with a high prevalence of injury. Running related injuries (RRIs) are a leading cause of drop-out and represent a substantial financial burden to runners and healthcare services. There is clear evidence for the use of exercise-based injury prevention programs in games-based and youth sport settings, yet the research investigating the use of exercise to reduce injury risk in endurance runners has not been adequately reviewed recently. OBJECTIVES The aim of this review and meta-analysis was to systematically summarize the current research that has investigated the effect of exercise-based prevention programs and their state of supervision on the risk of RRIs in endurance runners. METHODS Three databases were searched for relevant studies. Selection and review were completed by two independent reviewers using the following inclusion criteria: (1) study population used endurance running training for health, occupational, or performance outcome(s); (2) participants performed running as their main form of exercise (> 50% of their total training time); (3) study was a randomized controlled trial; (4) a non-running-based exercise intervention was used; (5) a running-only or placebo exercise control group was included; (6) injury rate or incidence was reported; (7) injuries were recorded prospectively alongside the exercise training. Two meta-analyses were conducted using random-effects models, one based on log risk ratio and one based on log incidence rate ratio. The Cochrane Risk of Bias Assessment Tool 2 was used to evaluate the quality of studies and the Grading of Recommendations Assessment, Development and Evaluations approach was employed to grade the certainty of evidence. RESULTS A total of nine articles containing 1904 participants were included in analysis. Overall pooled results showed no significant differences between intervention and control groups in injury risk (z = - 1.60; p = 0.110) and injury rate (z = - 0.98; p = 0.329), while a post hoc analysis evaluating supervised interventions only showed that injury risk was significantly lower in the intervention group compared to the control group (z = - 3.75, p < 0.001). Risk of bias assessment revealed that seven studies included in the analysis were of low quality. CONCLUSIONS Exercise-based interventions do not appear to reduce the risk and rate of running-related injuries. Supervision may be essential for exercise-based intervention programs to reduce risk of RRIs, possibly due to increased compliance. Studies with more robust designs that include supervised exercise interventions should be prioritized in the future. TRIAL REGISTRY Clinical Trial Registration: PROSPERO CRD42021211274.
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Affiliation(s)
- Han Wu
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Katherine Brooke-Wavell
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Daniel T P Fong
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Max R Paquette
- College of Health Sciences, University of Memphis, Memphis, TN, USA
| | - Richard C Blagrove
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.
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De Brochowski V, Rubin GJ, Webster RK. The effect of nocebo explanation and empathy on side-effect expectations of medication use following a fictional GP consultation. PSYCHOL HEALTH MED 2024; 29:809-821. [PMID: 37491019 DOI: 10.1080/13548506.2023.2240072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 07/18/2023] [Indexed: 07/27/2023]
Abstract
The simple act of informing patients about side-effects increases the likelihood they will experience them (i.e. the nocebo effect). Explaining this psychological phenomenon could help to reduce side-effect experience, however, it is yet to be explored if this can be applied to clinical settings where new medication is prescribed. In addition, the degree to which a health-care provider empathetically communicates this to patients may have an impact. To investigate this, we carried out 2 × 2 factorial trial to assess the effect of nocebo explanation and empathy (plus their interaction) on side-effect expectations following a fictional GP consultation prescribing a new medication. Overall, 208 participants were randomised to watch one of the four fictive GP consultations and play the role of the patient. In all videos, participants received information about the reason for the consultation, the recommendation of a new fictive medicine, how to take it, benefits and side-effects. The videos differed in whether the GP provided an explanation of the nocebo effect (yes/no) and whether they communicated in an empathetic style (yes/no). After watching the video, participants were asked about their side-effect expectations and rated the quality of the GP's communication. Two-way ANOVAs revealed no main effect of nocebo explanation on expectation of side-effects warned or not warned about in the consultation. However, there was a main effect of empathy, with participants watching the empathetic consultations having significantly lower expectations of non-warned-about side-effects. There was no significant interaction. Findings suggest that explaining the nocebo effect and GP empathy did little to allay expectations of side-effects that were specifically mentioned in the consultation. However, GP empathy had an effect by helping to reduce additional side-effect expectations participants still had. Future work should extend these findings to real GP consultations where the full dimensions of empathy can be explored.
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Affiliation(s)
- Valentine De Brochowski
- Health Psychology Section, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - G James Rubin
- Health Protection Research Unit in Emergency Preparedness and Response at, King's College London, London, United Kingdom
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12
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Caliskan EB, Bingel U, Kunkel A. Translating knowledge on placebo and nocebo effects into clinical practice. Pain Rep 2024; 9:e1142. [PMID: 38533458 PMCID: PMC10965200 DOI: 10.1097/pr9.0000000000001142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 12/18/2023] [Indexed: 03/28/2024] Open
Abstract
Introduction Positive and negative treatment expectations are powerful modulators of health and treatment outcomes. A substantial part of treatment success is due to contextual factors modulating patient's expectations towards a treatment. Consequently, treatment expectations should be a target of therapeutic interventions themselves. Objectives This article highlights the neurobiological underpinnings of treatment expectations as well as strategies to modulate contextual factors to optimize treatment outcomes in daily clinical settings. Methods This clinical update aligns with the 2022 IASP Global Year Translating Pain Knowledge into Practice and selectively reviews the best available evidence and practice. Results The effects of treatment expectations, also known as placebo and nocebo effects, are observed in various clinical conditions and physiological systems. However, most of our knowledge comes from the field of pain, where expectation effects substantially contribute to overall analgesic treatment outcomes. Experimental placebo analgesia paradigms provide the best illustration of how analgesic effects can be attributed not only to a pharmacological or specific treatment, but instead are the result of the expectation towards the treatment. The impact of expectations on treatment outcome is highly variable between individuals, and the identification of factors predicting an individual's response has proven to be challenging. Further research is required to provide personalized treatment strategies for the daily clinical practice. Conclusion Patient's previous experiences and expectations are powerful modulators of treatment efficacy, tolerability, and adherence. By providing a comprehensive overview of recent advances in this field, this review offers valuable insights for clinicians and researchers seeking to improve patient-clinician interaction.
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Affiliation(s)
- Elif Buse Caliskan
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ulrike Bingel
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Angelika Kunkel
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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13
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Borgmann A, Petrie KJ, Seewald A, Shedden-Mora M. Can side effect expectations be assessed implicitly? A comparison of explicit and implicit expectations of vaccination side effects. J Psychosom Res 2024; 179:111616. [PMID: 38401222 DOI: 10.1016/j.jpsychores.2024.111616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/23/2024] [Accepted: 02/17/2024] [Indexed: 02/26/2024]
Abstract
OBJECTIVE Treatment expectations alter the probability of experiencing unpleasant side effects from an intervention, including vaccinations. To date, expectations have mostly been assessed explicitly bearing the risk of bias. This study aims to compare implicit expectations of side effects from COVID-19 and flu vaccinations and to examine their relationships with vaccine attitudes and intentions. METHODS N = 248 participants took part in a cross-sectional online survey assessing explicit and implicit expectations, as well as vaccine-related attitudes and personal characteristics. A Single Category Implicit Association Test (SC-IAT) was developed to assess implicit side effect expectations. Explicit side effect expectations were measured with the Treatment Expectation Questionnaire (TEX-Q). RESULTS Whereas explicit and implicit expectations regarding COVID-19 vaccine were significantly correlated (r = -0.325, p < .001), those correlations could not be found regarding flu vaccine (r = -0.072, p = .32). Explicit measures (COVID-19: β = -0.576, p < .001; flu: β = -0.301, p < .001) predicted the intention to receive further vaccinations more than implicit measures (COVID-19: β = -0.005, p = .93; flu: β = 0.004, p = .96). Explicit measures (COVID-19: OR = 0.360, p < .001; flu: OR = 0.819, p = .03) predicted vaccination status, while implicit measures did not (COVID- 19: OR = 2.643, p = .35; flu: OR = 0.829, p = .61). CONCLUSION Expectations to experience side effects from vaccinations can be measured implicitly, in addition to explicit measures. Further investigation needs to determine the relative contribution and additive value of using implicit measures to assess treatment expectations.
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Affiliation(s)
- Anna Borgmann
- Department of Psychology, Medical School Hamburg, Hamburg, Germany.
| | - Keith J Petrie
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Anna Seewald
- Department of Psychology, Clinical Psychology and Psychotherapy, Philipps University Marburg, Marburg, Germany
| | - Meike Shedden-Mora
- Department of Psychology, Medical School Hamburg, Hamburg, Germany; Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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14
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Nasiri-Dehsorkhi H, Vaziri S, Esmaillzadeh A, Adibi P. Negative expectations (nocebo phenomenon) in clinical interventions: A scoping review. JOURNAL OF EDUCATION AND HEALTH PROMOTION 2024; 13:106. [PMID: 38726093 PMCID: PMC11081451 DOI: 10.4103/jehp.jehp_269_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 05/06/2023] [Indexed: 05/12/2024]
Abstract
Unpredictable, undesirable, and confusing reactions in the face of psychological or medical interventions make the clinical presentation more complicated and may represent clinically unexplained symptoms and also disturbed the doctor-patients relationship and decrease patients' benefits of treatment. It seems that negative expectations from the treatment (nocebo phenomenon) can explain such reactions. The aim of the current study is a scoping review and investigate different aspects of the nocebo phenomenon (negative expectations) in clinical interventions. This paper follows a scoping review of the existence, importance, and multidimensions of the nocebo phenomenon in medical and psychological interventions. Data sources include literature databases (ProQuest, PubMed, Google Scholar, and Scopus) reviewed from inception dates to 2023, and the terms negative expectations, nocebo effect, placebo effect, negative placebo, and clinical interventions were searched. The review of the available articles showed that negative expectations play an important role in the process and effectiveness of clinical interventions. Negative expectations (here named nocebo effect) can significantly interfere with rapport and treatment processes. Some underlying components of the nocebo effect include negative expectancies, conditioning, social learning, memory, cognitive distortions, meaning, motivation, somatic focus, negative reinforcements, personality, anxiety, and neurophysiological factors such as CCK, dopamine, and cortisol are proposed for development and presence of nocebo phenomenon in clinical practice. Negative expectations with its biopsychosocial aspects play an important and amazing role in disorganizing medical and psychological interventions. Using appropriate methods to reduce nocebo effects in therapeutic interventions may increase treatment compliance and adherence and increase the effectiveness of interventions.
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Affiliation(s)
- Hamid Nasiri-Dehsorkhi
- Department of Clinical Psychology, Roudehen Branch, Islamic Azad University, Roudehen, Iran
- Isfahan Gastroenterology and Hepatology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shahram Vaziri
- Department of Clinical Psychology, Roudehen Branch, Islamic Azad University, Roudehen, Iran
| | - Ahmad Esmaillzadeh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Peyman Adibi
- Isfahan Gastroenterology and Hepatology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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15
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Köteles F. Vague sensations. About the background and consequences of discordance between actual and perceived physiological changes. Clin Psychol Rev 2024; 108:102382. [PMID: 38218123 DOI: 10.1016/j.cpr.2024.102382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 10/28/2023] [Accepted: 01/05/2024] [Indexed: 01/15/2024]
Abstract
Empirical evidence consistently shows that discordance, also called dissociation or discrepancy, between actual physiological (mainly visceral) events and their perceived counterparts is substantial. On the one hand, we typically do not perceive actual visceral events occurring in our bodies; on the other hand, sometimes we do perceive bodily changes that do not really take place. This narrative review presents the available empirical findings on the discordance, and summarizes possible explanations that approach the phenomenon from the viewpoint of evolution, cognitive development, and predictive processing. Also, the role of top-down factors, such as expectations and experiences is discussed. Finally, practically relevant consequences of the discordance are presented using the examples of mind-body practices, the placebo and nocebo phenomenon, and medically unexplained symptoms. It is concluded that the discordance between actual and perceived body changes can have a negative impact on health, mainly through issues with adherence and other behavioral factors. The existence of actual-perceived discordance should be taught and demonstrated in the elementary and high school, as well as in many areas of higher education.
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Affiliation(s)
- Ferenc Köteles
- Institute of Psychology, Károli Gáspár University of the Reformed Church in Hungary, Budapest, Hungary; Ádám György Psychophysiology Research Group, Budapest, Hungary.
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Cetera GE, Facchin F, Viganò P, Merli CEM, Frassineti A, Fiorini J, Somigliana E, Vercellini P. "SO FAR AWAY" How Doctors Can Contribute to Making Endometriosis Hell on Earth. A Call for Humanistic Medicine and Empathetic Practice for Genuine Person-Centered Care. A Narrative Review. Int J Womens Health 2024; 16:273-287. [PMID: 38405184 PMCID: PMC10894706 DOI: 10.2147/ijwh.s440542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 12/13/2023] [Indexed: 02/27/2024] Open
Abstract
"SO FAR AWAY" * How Doctors Can Contribute to Making Endometriosis Hell on Earth [* by Knopfler M. In Dire Straits. Brothers in Arms. Vertigo Records, U.K., 1985]. Abstract The distance physicians may create within the relationship with their patients by not having a humanistic approach to their practice may strongly influence clinical outcomes. The purpose of this paper is to convey the well-known narrative of patient dissatisfaction into pro-action by discussing the aspects of dehumanization, which may occur in the relationship between physicians and women with endometriosis. Eight dimensions of dehumanization are examined and related to everyday scenarios occurring in endometriosis care settings and the possible downstream consequences on patients' clinical outcomes are described. Objectification, which may come across as minimization of pain, may not only increase patients' perception of pain but also lead to undertreatment of unrecognized forms of endometriosis, especially among adolescents. Passivity, that is not favoring shared decision-making nor self-management, may compromise adherence to treatment, reducing patients' trust in physicians and quality of life. The same consequences may result from homogenization, that is giving for granted that all patients have the same access to care. Both isolation, ie not practicing therapeutic empathy, and loss of meaning, ie not supporting patients in the re-definition of their life plans, may affect women's psychological wellbeing and further increase pain perception. Ignoring women's personal journey by not providing clear information on the consequences endometriosis may have on their lives may favor women's self-silencing. Not promoting an un-biased communication and not setting aside scientific polarization are the main features of dislocation, which may jeopardize patient empowerment. Lastly, having a reductionist approach to the body may contribute to chronicization of pain, thus compromising quality of life. This considered, taking time to listen to women with endometriosis and tailoring decisions on the basis of their individual needs should be fostered as a moral duty. Physicians should always keep in mind that they are not only deliverers of treatment; they are a form of treatment themselves.
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Affiliation(s)
- Giulia Emily Cetera
- Gynecology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Academic Center for Research on Adenomyosis and Endometriosis, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Federica Facchin
- Department of Psychology, Catholic University of the Sacred Heart, Milan, Italy
| | - Paola Viganò
- Academic Center for Research on Adenomyosis and Endometriosis, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
- Infertility Center, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | - Annalisa Frassineti
- Associazione Progetto Endometriosi Organizzazione di Volontariato, Reggio Emilia, Italy
| | - Jessica Fiorini
- Associazione Progetto Endometriosi Organizzazione di Volontariato, Reggio Emilia, Italy
| | - Edgardo Somigliana
- Academic Center for Research on Adenomyosis and Endometriosis, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
- Infertility Center, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Paolo Vercellini
- Gynecology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Academic Center for Research on Adenomyosis and Endometriosis, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
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Zhang Y, Huang W, Shan Z, Zhou Y, Qiu T, Hu L, Yang L, Wang Y, Xiao Z. A new experimental rat model of nocebo-related nausea involving double mechanisms of observational learning and conditioning. CNS Neurosci Ther 2024; 30:e14389. [PMID: 37545429 PMCID: PMC10848046 DOI: 10.1111/cns.14389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/12/2023] [Accepted: 07/23/2023] [Indexed: 08/08/2023] Open
Abstract
AIM The nocebo effect, such as nausea and vomiting, is one of the major reasons patients discontinue therapy. The underlying mechanisms remain unknown due to a lack of reliable experimental models. The goal of this study was to develop a new animal model of nocebo-related nausea by combining observational learning and Pavlovian conditioning paradigms. METHODS Male Sprague-Dawley rats with nitroglycerin-induced migraine were given 0.9% saline (a placebo) or LiCl (a nausea inducer) following headache relief, according to different paradigms. RESULTS Both strategies provoked nocebo nausea responses, with the conditioning paradigm having a greater induction impact. The superposition of two mechanisms led to a further increase in nausea responses. A preliminary investigation of the underlying mechanism revealed clearly raised peripheral and central cholecystokinin (CCK) levels, as well as specific changes in the 5-hydroxytryptamine and cannabinoid systems. Brain networks related to emotion, cognition, and visceral sense expressed higher c-Fos-positive neurons, including the anterior cingulate cortex (ACC), insula, basolateral amygdala (BLA), thalamic paraventricular nucleus (PVT), hypothalamic paraventricular nucleus (PVN), nucleus tractus solitarius (NTS), periaqueductal gray (PAG), and dorsal raphe nucleus-dorsal part (DRD). We also found that nausea expectances in the model could last for at least 12 days. CONCLUSION The present study provides a useful experimental model of nocebo nausea that might be used to develop potential molecular pathways and therapeutic strategies for nocebo.
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Affiliation(s)
- Yu Zhang
- Department of NeurologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Wanbin Huang
- Department of NeurologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Zhengming Shan
- Department of NeurologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Yanjie Zhou
- Department of NeurologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Tao Qiu
- Department of NeurologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Luyu Hu
- Department of NeurologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Liu Yang
- Department of NeurologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Yue Wang
- Department of NeurologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Zheman Xiao
- Department of NeurologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
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18
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Basedow LA, Zerth SF, Salzmann S, Uecker C, Bauer N, Elsenbruch S, Rief W, Langhorst J. Pre-treatment expectations and their influence on subjective symptom change in Crohn's disease. J Psychosom Res 2024; 176:111567. [PMID: 38100897 DOI: 10.1016/j.jpsychores.2023.111567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 12/07/2023] [Accepted: 12/09/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Treatment expectations reportedly shape treatment outcomes, but have not been studied in the context of multimodal therapy in Crohn's disease (CD). Therefore, the current study investigated the role of treatment expectations for subjective symptom changes in CD patients who have undergone an integrative multimodal therapy program. METHODS Validated questionnaires were completed at the start of the treatment program and post intervention. Pre-treatment expectations and experienced symptom change were assessed with the Generic Rating Scale for Previous Treatment Experiences, Treatment Expectations, and Treatment Effects (GEEE); stress levels were quantified with the Perceived Stress Scale (PSS-10) and disease specific quality of life was quantified with the disease-specific Inflammatory Bowel Disease Questionnaire (IBDQ). We performed multiple linear and Bayesian regression to determine how expectations related to symptom change. RESULTS N = 71 CD patients (66.2% female) were included. Stronger expectations regarding symptom improvement (b = 0.422, t = 3.70, p < .001) were associated with higher experienced symptom improvement. Additionally, Bayesian analysis provided strong evidence for including improvement expectations as a predictor of improvement experience (BFinclusion = 13.78). CONCLUSIONS In line with research in other disorders, we found that positive treatment expectations were associated with experienced symptom improvement. In contrast, we found no indication that an experience of symptom worsening was associated with positive or negative baseline treatment expectations. Induction of positive expectations might be a potential avenue for improving treatment outcomes in CD therapy.
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Affiliation(s)
- Lukas Andreas Basedow
- Philipps-Universität Marburg, Department of Clinical Psychology and Psychotherapy, 35037 Marburg, Germany.
| | - Simon Felix Zerth
- Philipps-Universität Marburg, Department of Clinical Psychology and Psychotherapy, 35037 Marburg, Germany.
| | - Stefan Salzmann
- Philipps-Universität Marburg, Department of Clinical Psychology and Psychotherapy, 35037 Marburg, Germany; Health and Medical University, Medical Psychology, 99084 Erfurt, Germany.
| | - Christine Uecker
- Sozialstiftung Bamberg, Department of Internal and Integrative Medicine, 96049 Bamberg, Germany; University of Duisburg Essen, Medicinal Faculty, Department of Integrative Medicine, 96049 Bamberg, Germany.
| | - Nina Bauer
- Sozialstiftung Bamberg, Department of Internal and Integrative Medicine, 96049 Bamberg, Germany; University of Duisburg Essen, Medicinal Faculty, Department of Integrative Medicine, 96049 Bamberg, Germany
| | - Sigrid Elsenbruch
- Department of Medical Psychology and Medical Sociology, Ruhr University Bochum, 44789 Bochum, Germany; Department of Neurology, Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany.
| | - Winfried Rief
- Philipps-Universität Marburg, Department of Clinical Psychology and Psychotherapy, 35037 Marburg, Germany.
| | - Jost Langhorst
- Sozialstiftung Bamberg, Department of Internal and Integrative Medicine, 96049 Bamberg, Germany; University of Duisburg Essen, Medicinal Faculty, Department of Integrative Medicine, 96049 Bamberg, Germany.
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19
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Yavropoulou MP, Kasdagli MI, Makras P, Diomatari KM, Anastasilakis AD, Mitsikostas DD, Kassi E, Sfikakis PP, Kravvariti E. Nocebo-associated treatment discontinuation with subcutaneous anti-osteoporotic drugs. A systematic review and meta-analysis of placebo-arm dropouts in randomized-controlled trials. Maturitas 2024; 179:107874. [PMID: 37976923 DOI: 10.1016/j.maturitas.2023.107874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/22/2023] [Accepted: 10/24/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVE Nocebo is a concept of therapeutics referring to unpleasant symptoms attributed by a patient to a drug, due to negative anticipation. Patients receiving oral anti-osteoporotic drugs in randomized controlled trials (RCT) can experience adverse events leading to dropout, implying that nocebo contributes to treatment discontinuation for these drugs. In this study we aim to investigate the nocebo effect of subcutaneous anti-osteoporotic drugs with a higher compliance rate than orally administered drugs. STUDY DESIGN We searched MEDLINE, EMBASE, SCOPUS, and Cochrane databases for double-blind trials investigating subcutaneous anti-osteoporotic drugs for osteoporosis (namely, denosumab, teriparatide, abaloparatide and romosozumab) published up to May 2023. MAIN OUTCOME MEASURE Dropouts due to reported adverse events in the placebo arms ("nocebo dropouts"). RESULTS Data from 17 trials were extracted. Among 10,529 placebo-treated patients the pooled nocebo-dropout percentage was 3 % for denosumab (average: 0.03; 95 % CI: 0.01-0.05), 1 % for romosozumab (average: 0.01; 95 % CI: 0.00-0.03) and 6 % for teriparatide and abaloparatide (average: 0.06; 95 % CI: 0.05-0.07). Nocebo-dropouts were significantly higher in men than women (6 % vs. 3 %, respectively, p = 0.012), in older (mean age >68 years) than in younger patients (5 % vs. 1 %, respectively, p = 0.017) and in those with more severe osteoporosis (based on the percentage of participants with prior fragility-related fractures in the study cohort) compared with patients with no prior fracture history (4 % vs. 1 %, respectively, p = 0.046). CONCLUSION Nocebo responses may contribute to treatment discontinuation with subcutaneous anti-osteoporotic drugs in clinical practice. Higher nocebo-related dropout rates in the higher-risk RCT population (older patients, males, those with prior fractures) show that nocebo mechanisms have the potential to hinder therapeutic efforts to specific populations who would benefit most. Prospero registration number CRD42020212843.
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Affiliation(s)
- Maria P Yavropoulou
- Endocrinology Unit, 1st Department of Propaedeutic and Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Laikon University Hospital of Athens, 11527 Athens, Greece.
| | - Maria-Iosifina Kasdagli
- Department of Hygiene and Epidemiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Polyzois Makras
- Department of Medical Research, 251 Hellenic Air Force & VA General Hospital, Athens, Greece
| | - Konstantina-Maria Diomatari
- Postgraduate Medical Studies in the Physiology of Aging and Geriatric Syndromes, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | | | - Dimos D Mitsikostas
- 1st Neurology Department, Aeginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Eva Kassi
- Endocrinology Unit, 1st Department of Propaedeutic and Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Laikon University Hospital of Athens, 11527 Athens, Greece
| | - Petros P Sfikakis
- Endocrinology Unit, 1st Department of Propaedeutic and Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Laikon University Hospital of Athens, 11527 Athens, Greece; 1st Department of Propaedeutic and Internal Medicine, Joint Academic Rheumatology Program, School of Medicine, National and Kapodistrian University of Athens, Laikon University Hospital of Athens, 11527 Athens, Greece
| | - Evrydiki Kravvariti
- Endocrinology Unit, 1st Department of Propaedeutic and Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Laikon University Hospital of Athens, 11527 Athens, Greece; 1st Department of Propaedeutic and Internal Medicine, Joint Academic Rheumatology Program, School of Medicine, National and Kapodistrian University of Athens, Laikon University Hospital of Athens, 11527 Athens, Greece
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20
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Beier F, Löffler M, Nees F, Bekrater-Bodmann R, Silvoni S, Desch S, Löffler A, Hausner L, Frölich L, Flor H. Effects of an app-based sensorimotor training in promoting neuroplasticity and neuropsychological functioning in frailty: A randomized controlled trial. Arch Gerontol Geriatr 2023; 115:105202. [PMID: 37776754 DOI: 10.1016/j.archger.2023.105202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/01/2023] [Accepted: 09/14/2023] [Indexed: 10/02/2023]
Abstract
BACKGROUND Loss of sensorimotor stimulation and maladaptive plastic changes of the brain may play a major role in problematic aging phenomena such as frailty. However, it is not clear if interventions specifically targeting neuroplasticity can reverse or slow the development of frailty. OBJECTIVES We compared the effect of a tablet-based neuroplasticity-oriented sensorimotor training (experimental group, EG) and a tablet-based relaxation training (control group, CG) on frailty and sensorimotor brain function. METHODS Interventions consisted of daily 30 min sessions distributed over 90 days. Assessments took place at baseline, after 60 days, and after 90 days. A total of N = 48 frail older adults (EG: n = 24; CG: n = 24) were assigned to the two groups and reassessed after 60 days. Primary outcomes included frailty phenotype (FP) and frailty index (FI). Sensorimotor brain activity was evaluated using functional magnetic resonance imaging and single-pulse transcranial magnetic stimulation. RESULTS After 60 days of training, both groups showed a reduction in the number of FP criteria (p < 0.001) with a trend towards a significant time-by-group interaction (p = 0.058) indicating a stronger reduction of frailty in the EG (p < 0.001) compared to the CG (p = 0.039). In addition, pain was significantly reduced in the EG but not the CG. No significant effects were found for measures of brain function. DISCUSSION We provided initial evidence that a neuroplasticity-oriented sensorimotor training could be beneficial in counteracting frailty as well as chronic pain. Further studies are needed to determine the potentially underlying neuroplastic mechanisms and the influence of plasticity-related biomarkers as well as their clinical significance. TRIAL REGISTRATION ClinicalTrials.gov NCT03666039 (registered 11 September 2018).
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Affiliation(s)
- Florian Beier
- Medical Faculty Mannheim, Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Heidelberg University, Square J5, Mannheim 68159, Germany.
| | - Martin Löffler
- Medical Faculty Mannheim, Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Heidelberg University, Square J5, Mannheim 68159, Germany; Department of Experimental Psychology, Clinical Psychology, Heinrich Heine University Düsseldorf, Germany; Integrative Spinal Research Group, Department of Chiropractic Medicine, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Frauke Nees
- Medical Faculty Mannheim, Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Heidelberg University, Square J5, Mannheim 68159, Germany; Institute of Medical Psychology and Medical Sociology, University Medical Center Schleswig-Holstein, Kiel University, Kiel, Germany
| | - Robin Bekrater-Bodmann
- Medical Faculty Mannheim, Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Heidelberg University, Square J5, Mannheim 68159, Germany; Department of Psychiatry, Psychotherapy and Psychosomatics, Faculty of Medicine, RWTH Aachen, Aachen, Germany
| | - Stefano Silvoni
- Medical Faculty Mannheim, Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Heidelberg University, Square J5, Mannheim 68159, Germany
| | - Simon Desch
- Medical Faculty Mannheim, Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Heidelberg University, Square J5, Mannheim 68159, Germany; Department of Experimental Psychology, Clinical Psychology, Heinrich Heine University Düsseldorf, Germany
| | - Annette Löffler
- Medical Faculty Mannheim, Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Heidelberg University, Square J5, Mannheim 68159, Germany
| | - Lucrezia Hausner
- Medical Faculty Mannheim, Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Heidelberg University, Square J5, Mannheim 68159, Germany; Department of Geriatric Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Lutz Frölich
- Department of Geriatric Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Herta Flor
- Medical Faculty Mannheim, Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Heidelberg University, Square J5, Mannheim 68159, Germany; Department of Psychology, School of Social Sciences, University of Mannheim, Mannheim, Germany
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21
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MacKrill K, Witthöft M, Wessely S, Petrie KJ. Health Scares: Tracing Their Nature, Growth and Spread. CLINICAL PSYCHOLOGY IN EUROPE 2023; 5:e12209. [PMID: 38357430 PMCID: PMC10863677 DOI: 10.32872/cpe.12209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 10/18/2023] [Indexed: 02/16/2024] Open
Abstract
Background Health scares are highly publicised threats to health that increase public concern and protective behaviours but are later shown to be unfounded. Although health scares have become more common in recent times, they have received very little research attention. This is despite the fact that health scares often have negative outcomes for individuals and community by affecting health behaviours and causing high levels of often unnecessary anxiety. Method In this paper we undertook a review and analysis of the major types of health scares as well as the background factors associated with health scares and their spread. Results We found most health scares fell into seven main categories; environmental contaminants, food, malicious incidents, medical treatments, public health interventions, radiation from technology and exotic diseases. For most health scares there are important background factors and incident characteristics that affect how they develop. Background factors include conspiracy theories, trust in governmental agencies, anxiety, modern health worries and wariness of chemicals. Incident characteristic include being newly developed, not understood or unseen, man-made rather than natural and whether the incident is out of personal control. We also identified the aspects of traditional and social media that exacerbate the rapid spread of health scares. Conclusion More research is needed to identify the characteristics of media stories that intensify the levels of public concern. Guidelines around the media's reporting of health incidents and potential health threats may be necessary in order to reduce levels of public anxiety and the negative public health impact of health scares.
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Affiliation(s)
- Kate MacKrill
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Michael Witthöft
- Department of Clinical Psychology, Psychotherapy and Experimental Psychopathology, Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Simon Wessely
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, United Kingdom
| | - Keith J. Petrie
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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Basedow LA, Fischer A, Benson S, Bingel U, Brassen S, Büchel C, Engler H, Mueller EM, Schedlowski M, Rief W. The influence of psychological traits and prior experience on treatment expectations. Compr Psychiatry 2023; 127:152431. [PMID: 37862937 DOI: 10.1016/j.comppsych.2023.152431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 10/22/2023] Open
Abstract
BACKGROUND Placebo and nocebo responses are modulated by the treatment expectations of participants and patients. However, interindividual differences predicting treatment expectations and placebo responses are unclear. In this large-scale pooled analysis, we aim to investigate the influence of psychological traits and prior experiences on treatment expectations. METHODS This paper analyses data from six different placebo studies (total n = 748). In all studies, participants' sociodemographic information, treatment expectations and prior treatment experiences and traits relating to stress, somatization, depression and anxiety, the Big Five and behavioral inhibition and approach tendencies were assessed using the same established questionnaires. Correlation coefficients and structural equation models were calculated to investigate the relationship between trait variables and expectations. RESULTS We found small positive correlations between side effect expectations and improvement expectations (r = 0.187), perceived stress (r = 0.154), somatization (r = 0.115), agitation (r = 0.108), anhedonia (r = 0.118), and dysthymia (r = 0.118). In the structural equation model previous experiences emerged as the strongest predictors of improvement (β = 0.32, p = .005), worsening (β = -0.24, p = .005) and side effect expectations (β = 0.47, p = .005). Traits related to positive affect (β = - 0.09; p = .007) and negative affect (β = 0.04; p = .014) were associated with side effect expectations. DISCUSSION This study is the first large analysis to investigate the relationship between traits, prior experiences and treatment expectations. Exploratory analyses indicate that experiences of symptom improvement are associated with improvement and worsening expectations, while previous negative experiences are only related to side effect expectations. Additionally, a proneness to experience negative affect may be a predictor for side effect expectation and thus mediate the occurrence of nocebo responses.
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Affiliation(s)
- Lukas A Basedow
- Philipps-Universität Marburg, Department of Clinical Psychology and Psychotherapy, 35037 Marburg, Germany.
| | - Anton Fischer
- Philipps-Universität Marburg, Department of Differential Psychology and Personality Research, 35037 Marburg, Germany.
| | - Sven Benson
- Institute of Medical Psychology and Behavioral Immunobiology, Center for Translational Neuro- and Behavioral Sciences, University Hospital of Essen, Essen, Germany.
| | - Ulrike Bingel
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, Essen, DE, Germany.
| | - Stefanie Brassen
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Christian Büchel
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Harald Engler
- Institute of Medical Psychology and Behavioral Immunobiology, Center for Translational Neuro- and Behavioral Sciences, University Hospital of Essen, Essen, Germany.
| | - Erik M Mueller
- Philipps-Universität Marburg, Department of Differential Psychology and Personality Research, 35037 Marburg, Germany.
| | - Manfred Schedlowski
- Institute of Medical Psychology and Behavioral Immunobiology, Center for Translational Neuro- and Behavioral Sciences, University Hospital of Essen, Essen, Germany; Osher Center for Integrative Health, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
| | - Winfried Rief
- Philipps-Universität Marburg, Department of Clinical Psychology and Psychotherapy, 35037 Marburg, Germany.
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23
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Crum AJ, Heathcote LC, Morrison Z, Yielder R, Leibowitz K, Petousis-Harris H, Thomas MG, Prober CG, Berek JS, Petrie KJ. Changing Mindsets About Side Effects of the COVID-19 Vaccination: A Randomized Controlled Trial. Ann Behav Med 2023; 57:901-909. [PMID: 37279932 PMCID: PMC10578416 DOI: 10.1093/abm/kaad020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Side-effect concerns are a major barrier to vaccination against COVID-19 and other diseases. Identifying cost- and time-efficient interventions to improve vaccine experience and reduce vaccine hesitancy-without withholding information about side effects-is critical. PURPOSE Determine whether a brief symptom as positive signals mindset intervention can improve vaccine experience and reduce vaccine hesitancy after the COVID-19 vaccination. METHODS English-speaking adults (18+) were recruited during the 15-min wait period after receiving their second dose of the Pfizer COVID-19 vaccination and were randomly allocated to the symptom as positive signals mindset condition or the treatment as usual control. Participants in the mindset intervention viewed a 3:43-min video explaining how the body responds to vaccinations and how common side effects such as fatigue, sore arm, and fever are signs that the vaccination is helping the body boost immunity. The control group received standard vaccination center information. RESULTS Mindset participants (N = 260) versus controls (N = 268) reported significantly less worry about symptoms at day 3 [t(506)=2.60, p=.01, d=0.23], fewer symptoms immediately following the vaccine [t(484)=2.75, p=.006, d=0.24], and increased intentions to vaccinate against viruses like COVID-19 in the future [t(514)=-2.57, p=.01, d=0.22]. No significant differences for side-effect frequency at day 3, coping, or impact. CONCLUSIONS This study supports the use of a brief video aimed at reframing symptoms as positive signals to reduce worry and increase future vaccine intentions. CLINICAL TRIAL INFORMATION Australian New Zealand Clinical Trials Registry: ACTRN12621000722897p.
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Affiliation(s)
- Alia J Crum
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Lauren C Heathcote
- Health Psychology Section, Department of Psychology, Institute of Psychiatry Psychology and Neuroscience, King’s College London, London, UK
| | - Zara Morrison
- Department of Psychological Medicine, University of Auckland, Auckland, New Zealand
| | - Rachael Yielder
- Department of Psychological Medicine, University of Auckland, Auckland, New Zealand
| | - Kari Leibowitz
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Helen Petousis-Harris
- Department of General Practice and Primary Care, University of Auckland, Auckland, New Zealand
| | - Mark G Thomas
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - Charles G Prober
- Professor of Pediatrics, Microbiology, & Immunology, Stanford Center for Health Education, Stanford University, Stanford, CA, USA
| | - Jonathan S Berek
- Stanford Women’s Cancer Center, Stanford Center for Health Education, Stanford Medicine, Stanford, CA, USA
| | - Keith J Petrie
- Department of Psychological Medicine, University of Auckland, Auckland, New Zealand
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24
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Aulenkamp JL, Icenhour A, Elsenbruch S. Nocebo effects in visceral pain: concept and design of the experimental randomized-controlled pain study 'NoVis'. Front Psychiatry 2023; 14:1270189. [PMID: 37900300 PMCID: PMC10603299 DOI: 10.3389/fpsyt.2023.1270189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/29/2023] [Indexed: 10/31/2023] Open
Abstract
The role of psychological factors in the pathophysiology and treatment of chronic visceral pain in disorders of gut-brain interactions (DGBI) is increasingly appreciated. Placebo research has underscored that expectations arising from the psychosocial treatment context and from prior experiences shape treatment responses. However, effects of negative expectations, i.e., nocebo effects, as they are likely crucial elements of DGBI patients' clinical reality, have thus far only rarely been investigated in the context of visceral pain, with untapped potential for improved prevention and treatment. The experimental randomized-controlled pain study "NoVis," carried out within the Collaborative Research Center (CRC) 289 ("Treatment Expectation"), aims to close gaps regarding the generation and persistence of nocebo effects in healthy volunteers. It is designed to elucidate effects of negative expectations in a multiple-threat paradigm with intensity-matched rectal distensions and cutaneous thermal stimuli, allowing to test nocebo effects in the visceral and somatic pain modalities. Negative expectations are experimentally induced by elements of doctor-patient communication (i.e., instruction) and/or by surreptitious amplification of symptom intensity (i.e., experience/learning) within a treatment context. Accordingly, the repeated measures between-subject design contains the between-group factors "treatment instruction" (negative vs. control) and "treatment experience" (negative vs. control), with volunteers randomized into four experimental groups undergoing several pain stimulation phases (repeated factor). This allows to compare the efficacy of instruction vs. experience, and more importantly, their combined effects on the magnitude of negative expectations and their impact on pain responses, which we expect will be greatest for the visceral modality. After a Baseline, short-term effects are assessed during a test phase accomplished on study day 1 (Test-1 Phase). To explore the persistence of effects, a second test phase is accomplished 1 week later (Test-2 Phase). Effects of negative expectations within and across pain modalities are assessed at the subjective and objective levels, with a focus on psychophysiological and neuroendocrine measures related to stress, fear, and anxiety. Since nocebo effects can play a considerable role in the generation, maintenance, or worsening of chronic visceral pain, and may even constitute risk factors for treatment failure, knowledge from experimental nocebo research has potential to improve treatment outcomes in DGBI and other clinical conditions associated with chronic visceral pain.
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Affiliation(s)
- Jana Luisa Aulenkamp
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Adriane Icenhour
- Department of Medical Psychology and Medical Sociology, Ruhr University Bochum, Bochum, Germany
| | - Sigrid Elsenbruch
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Department of Medical Psychology and Medical Sociology, Ruhr University Bochum, Bochum, Germany
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25
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Salzmann S, Euteneuer F, Kampmann S, Rienmüller S, Rüsch D. Preoperative anxiety and need for support - A qualitative analysis in 1000 patients. PATIENT EDUCATION AND COUNSELING 2023; 115:107864. [PMID: 37393683 DOI: 10.1016/j.pec.2023.107864] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 06/01/2023] [Accepted: 06/19/2023] [Indexed: 07/04/2023]
Abstract
OBJECTIVES Preoperative anxiety is prevalent, emotionally distressing for many patients, and can have harmful effects on postoperative outcomes. Despite its high prevalence, there has been little research on preoperative anxiety using qualitative methods. This study's main goal was to qualitatively examine factors that may contribute to preoperative anxiety in a large sample. METHODS In a survey, a total of 1000 patients awaiting surgery were asked open questions i) about reasons which they associate with their preoperative anxiety and ii) which coping strategies they would prefer in addition to premedication. RESULTS The qualitative analysis indicated five overarching domains, 16 themes, and 54 subthemes of preoperative anxiety. Intra- or postoperative complications was the most common theme regarding preoperative anxiety (n = 516). Personal conversation was the most frequently desired supportive measure in addition to premedication. CONCLUSIONS This study indicated a considerable heterogeneity of reasons associated with preoperative anxiety based on an unbiased assessment in a large sample. The study further suggests that a personal conversation is a clinically important coping strategy in addition to premedication. PRACTICE IMPLICATIONS Providers should assess patients' preoperative anxiety and the resulting need for support individually to offer supportive measures adapted to the patients' needs.
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Affiliation(s)
- Stefan Salzmann
- Division of Clinical Psychology and Psychotherapy, Philipps-University Marburg, Marburg, Germany; Medical Psychology, Health and Medical University Erfurt, Erfurt, Germany.
| | - Frank Euteneuer
- Department of Psychology, Clinical Psychology and Psychotherapy, Medical School Berlin, Berlin, Germany
| | | | | | - Dirk Rüsch
- Philipps-University Marburg, Marburg, Germany; University Hospital Giessen-Marburg (Marburg Campus), Department of Anesthesia and Intensive Care, Marburg, Germany
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26
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Pronovost-Morgan C, Hartogsohn I, Ramaekers JG. Harnessing placebo: Lessons from psychedelic science. J Psychopharmacol 2023; 37:866-875. [PMID: 37392012 PMCID: PMC10481630 DOI: 10.1177/02698811231182602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/02/2023]
Abstract
The randomized controlled trial (RCT) research design assumes that a drug's "specific" effect can be isolated, added, and subtracted from the "nonspecific" effect of context and person. While RCTs are helpful in assessing the added benefit of a novel drug, they tend to obscure the curative potential of extra-pharmacological variables, known as "the placebo effect." Ample empirical evidence suggests that person/context-dependent physical, social, and cultural variables not only add to, but also shape drug effects, making them worth harnessing for patient benefits. Nevertheless, utilizing placebo effects in medicine is challenging due to conceptual and normative obstacles. In this article, we propose a new framework inspired by the field of psychedelic science and its employment of the "set and setting" concept. This framework acknowledges that drug and nondrug factors have an interactive and synergistic relationship. From it, we suggest ways to reintegrate nondrug variables into the biomedical toolbox, to ethically harness the placebo effect for improved clinical care.
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Affiliation(s)
- Chloé Pronovost-Morgan
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, UK
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Ido Hartogsohn
- The Program for Science, Technology and Society Studies, Bar-Ilan University, Ramat Gan, Israel
| | - Johannes G Ramaekers
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
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27
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Steiner KM, Timmann D, Bingel U, Kunkel A, Spisak T, Schedlowski M, Benson S, Engler H, Scherbaum N, Koelkebeck K. Study protocol: effects of treatment expectation toward repetitive transcranial magnetic stimulation (rTMS) in major depressive disorder-a randomized controlled clinical trial. Trials 2023; 24:553. [PMID: 37620946 PMCID: PMC10464308 DOI: 10.1186/s13063-023-07579-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 08/09/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND Patients' expectations toward any given treatment are highly important for the effectiveness of such treatment, as has been demonstrated for several disorders. In particular, in major depressive disorder (MDD), one of the most frequent and most serious mental disorders with severe consequences for the affected, the augmentation of available treatment options could mean a ground-breaking success. Repetitive transcranial magnetic stimulation (rTMS), a new, non-invasive, and well-tolerated intervention with proven effects in the treatment of MDD, appears particularly suitable in this context as it is assumed to exert its effect via structures implicated in networks relevant for both expectation and depression. METHODS All patients will receive rTMS according to its approval. Half of the patients will be randomized to a psychological intervention, which is a comprehensive medical consultation aiming to improve positive treatment expectations; the control group will receive a conventional informed consent discussion (in the sense of a treatment-as-usual condition). As outcome parameters, instruments for both self-assessment and external assessment of depression symptoms will be applied. Furthermore, psycho-immunological parameters such as inflammation markers and the cortisol awakening response in saliva will be investigated. Resting-state functional magnetic resonance imaging (rs fMRI) will be performed to analyze functional connectivity, including the cerebellum, and to identify neuronal predictors of expectation effects. In addition, possible cerebellar involvement will be assessed based on a cerebellar-dependent motor learning paradigm (i.e., eyeblink conditioning). DISCUSSION In this study, the effects of treatment expectations towards rTMS are investigated in patients with MDD. The aim of this study is to identify the mechanisms underlying the expectation effects and, beyond that, to expand the potential of non-invasive and well-tolerated treatments of MDD. TRIAL REGISTRATION German Registry of Clinical Studies (DRKS DRKS00028017. Registered on 2022/03/07. URL: https://www.drks.de/drks_web/ .
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Affiliation(s)
- Katharina M Steiner
- Department of Psychiatry and Psychotherapy, Medical Faculty, LVR-University-Hospital Essen, University of Duisburg-Essen, Virchowstr, 174, 45147, Essen, Germany.
- Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany.
| | - Dagmar Timmann
- Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Ulrike Bingel
- Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Angelika Kunkel
- Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Tamas Spisak
- Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Manfred Schedlowski
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
- Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Sven Benson
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
- Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Institute for Medical Education, Essen University Hospital, University Duisburg-Essen, Essen, Germany
| | - Harald Engler
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
- Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Norbert Scherbaum
- Department of Psychiatry and Psychotherapy, Medical Faculty, LVR-University-Hospital Essen, University of Duisburg-Essen, Virchowstr, 174, 45147, Essen, Germany
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Katja Koelkebeck
- Department of Psychiatry and Psychotherapy, Medical Faculty, LVR-University-Hospital Essen, University of Duisburg-Essen, Virchowstr, 174, 45147, Essen, Germany
- Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
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28
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Falkenberg I, Bitsch F, Liu W, Matsingos A, Noor L, Vogelbacher C, Yildiz C, Kircher T. The effects of esketamine and treatment expectation in acute major depressive disorder (Expect): study protocol for a pharmacological fMRI study using a balanced placebo design. Trials 2023; 24:514. [PMID: 37568215 PMCID: PMC10416369 DOI: 10.1186/s13063-023-07556-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND Major depressive disorder (MDD) is a highly prevalent (8-15%), severely disabling disorder and is associated with enormous socioeconomic impact. Antidepressant medication for the treatment of MDD has proven effective in RCTs; however, placebo response is also substantial. Given the potential benefits of modulating the placebo response in patient care and pharmacological research, understanding the mechanisms underlying placebo response is of high clinical relevance. The placebo response is mediated by treatment expectation, i.e. an individual's belief about whether and how much they will improve as a consequence of their treatment. The mechanisms and moderators of treatment expectation effects in MDD are poorly understood. Initial brain imaging studies on placebo responses in MDD point towards the relevance of the lateral prefrontal cortex and the rostral anterior cingulate cortex (rACC). In this project, we will investigate the neural mechanisms underlying the antidepressant effects of treatment expectation associated with the fast-acting antidepressant esketamine in patients with MDD. Esketamine is an NMDA receptor antagonist inducing antidepressant effects within hours. METHODS We will employ a fully balanced placebo design with the factors "treatment" (i.v. esketamine / placebo) and verbally induced "expectation" (high / low) combined with fMRI (resting state, emotion and reward processing paradigms) to investigate the psychological and neural mechanisms underlying the antidepressant effects of expectation, and how these interact with the pharmacological effects of esketamine. DISCUSSION The insights gained by this project promise fundamental implications for clinical treatment and future drug trials. Unraveling the mechanisms underlying expectation effects on antidepressant treatment may inform (1) strategies to modulate these effects and thus improve assay sensitivity in RCTs and (2) novel treatment regiments aiming to maximize the synergistic effects of expectation and pharmacological treatment in the clinical care of patients with MDD. TRIAL REGISTRATION This trial has been prospectively registered with the EU Clinical Trials Register: EudraCT-No.: 2020-000784-23 (November 17, 2020).
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Affiliation(s)
- Irina Falkenberg
- Department of Psychiatry and Psychotherapy, University of Marburg, Rudolf-Bultmann-Str. 8, 35039, Marburg, Germany.
- Center for Mind, Brain and Behavior - CMBB, Hans-Meerwein-Straße 6, 35032, Marburg, Germany.
| | - Florian Bitsch
- Department of Psychiatry and Psychotherapy, University of Marburg, Rudolf-Bultmann-Str. 8, 35039, Marburg, Germany
- Center for Mind, Brain and Behavior - CMBB, Hans-Meerwein-Straße 6, 35032, Marburg, Germany
| | - Wei Liu
- Department of Psychiatry and Psychotherapy, University of Marburg, Rudolf-Bultmann-Str. 8, 35039, Marburg, Germany
- Center for Mind, Brain and Behavior - CMBB, Hans-Meerwein-Straße 6, 35032, Marburg, Germany
| | - Alexandros Matsingos
- Department of Psychiatry and Psychotherapy, University of Marburg, Rudolf-Bultmann-Str. 8, 35039, Marburg, Germany
- Center for Mind, Brain and Behavior - CMBB, Hans-Meerwein-Straße 6, 35032, Marburg, Germany
| | - Laila Noor
- Department of Psychiatry and Psychotherapy, University of Marburg, Rudolf-Bultmann-Str. 8, 35039, Marburg, Germany
- Center for Mind, Brain and Behavior - CMBB, Hans-Meerwein-Straße 6, 35032, Marburg, Germany
| | - Christoph Vogelbacher
- Department of Psychiatry and Psychotherapy, University of Marburg, Rudolf-Bultmann-Str. 8, 35039, Marburg, Germany
- Center for Mind, Brain and Behavior - CMBB, Hans-Meerwein-Straße 6, 35032, Marburg, Germany
- Department of Clinical Psychology, University of Marburg, Schulstr. 12, 35037, Marburg, Germany
| | - Cüneyt Yildiz
- Department of Psychiatry and Psychotherapy, University of Marburg, Rudolf-Bultmann-Str. 8, 35039, Marburg, Germany
- Center for Mind, Brain and Behavior - CMBB, Hans-Meerwein-Straße 6, 35032, Marburg, Germany
| | - Tilo Kircher
- Department of Psychiatry and Psychotherapy, University of Marburg, Rudolf-Bultmann-Str. 8, 35039, Marburg, Germany
- Center for Mind, Brain and Behavior - CMBB, Hans-Meerwein-Straße 6, 35032, Marburg, Germany
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29
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Li RJ, Zhang QQ, Feng YQ, Pei QQ, He XX, Chen FP, Wang DK, Liu XH, Liu JS, Hou XH, Bai T. Nocebo response intensity and influencing factors in the randomized clinical trials of functional dyspepsia: A systematic review and meta-analysis. J Dig Dis 2023; 24:440-451. [PMID: 37577771 DOI: 10.1111/1751-2980.13216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/28/2023] [Accepted: 08/07/2023] [Indexed: 08/15/2023]
Abstract
OBJECTIVES In this study we aimed to evaluate the nocebo response rate in patients with functional dyspepsia (FD) and to explore its influencing factors. METHODS A literature search of the EMBASE, PubMed, and Cochrane Library databases was conducted for all articles published up to March 2021. Randomized, parallel-designed, placebo-controlled trials on pharmacological interventions for patients with FD were included. A meta-analysis that utilized random effects to analyze the incidence of adverse events (AEs) among participants who were given placebo was conducted, and the correlation between trial characteristics and the magnitude of the nocebo response rate was analyzed. RESULTS Altogether, 27 studies including 1866 paitents were deemed eligible and included in the analysis. The total nocebo response rate was 26% (95% confidence interval [CI] 18%-33%). The most frequently reported AEs included nasopharyngitis (9%), constipation (6%), headache (5%), and diarrhea (3%). There were significant differences in nocebo response rates among studies conducted in different country or region, treatment duration, types of medication, sponsorship and different versions of the Rome criteria used for FD diagnosis. While number of centers engaged in the study, types of FD diagnosis and dosing frequency were not significantly associated with the nocebo response rate. CONCLUSIONS Patients with FD exhibit notable nocebo response strength in clinical trials. The researchers should adopt a more careful approach when analyzing the relationships between AEs and interventions in such trials.
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Affiliation(s)
- Rui Jie Li
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Qing Qing Zhang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yu Qing Feng
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Qiao Qiao Pei
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xuan Xuan He
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Fu Ping Chen
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Dong Ke Wang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xing Huang Liu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Jin Song Liu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xiao Hua Hou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Tao Bai
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
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Nasiri-Dehsorkhi H, Vaziri S, Esmaillzadeh A, Adibi P. Psychological distress, perceived stress and nocebo effect (multifood adverse reaction) in irritable bowel syndrome patients. JOURNAL OF EDUCATION AND HEALTH PROMOTION 2023; 12:257. [PMID: 37727431 PMCID: PMC10506782 DOI: 10.4103/jehp.jehp_221_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 04/03/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND Psychological distress and perceived stress may complicate the clinical presentation, course, and treatment of patients with functional gastrointestinal disorders. The correlation between psychological distress, perceived stress, and the nocebo effect (multifood adverse reaction) in patients with irritable bowel syndrome (IBS) was the main aim of the present study. MATERIALS AND METHODS In this cross-sectional correlation study, data on 4,763 Iranian adults, 748 of whom by purposive sampling were patients with IBS (65.1% female), working in 50 different health centers affiliated to the Isfahan University of Medical Sciences across Isfahan province were examined. For assessing dietary intake, a 106-item self-administered Dish-based Semi-Quantitative Food Frequency Questionnaire that was specifically designed and validated for Iranian adults was used. General Heath Questionnaire 12 and Stressful Life event Questionnaire were used to assess psychological distress and perceived stress. By using a modified Persian version of the Rome III questionnaire, IBS was assessed. Based on researcher-made definition of nocebo effect (multiitem food intolerance), 164 people had the nocebo phenomenon in IBS group. RESULTS Age, sex, education, marital status, antidepressant use, and specifically chronic underlying disease (odds ratio [OR]: 3.54, 95% confidence interval [CI]: 1.73-7.23) of general characteristics had a significant correlation (P <.05) with presenting nocebo responses in IBS patients. Psychological distress (OR: 1.415; 95% CI: 0.992-2.020; P = 0.056) had a significant correlation with nocebo effect and did not find significant correlation with perceived stress (OR: 0.999; 95% CI: 0.990-1.008; P = 0.865). Data were analyzed by Chi-square test, analysis of variance, and OR. CONCLUSION The present study showed that psychological distress with chronic underlying disease and antidepressant use are important elements in presenting multifood adverse reactions that we named here as the nocebo effect in IBS patients. Reducing psychological distress and managing chronic underlying diseases appear to be an effective factor in reducing the nocebo phenomenon in IBS patients. For managing the nocebo responses in IBS patients, these findings may help clinicians to improve their interventions. Further studies are required to confirm these findings.
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Affiliation(s)
- Hamid Nasiri-Dehsorkhi
- Department of Clinical Psychology, Roudehen Branch, Islamic Azad University, Roudehen, Iran
- Isfahan Gastroenterology and Hepatology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shahram Vaziri
- Department of Clinical Psychology, Roudehen Branch, Islamic Azad University, Roudehen, Iran
| | - Ahmad Esmaillzadeh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Peyman Adibi
- Isfahan Gastroenterology and Hepatology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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31
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Junqueira DR, Zorzela L, Golder S, Loke Y, Gagnier JJ, Julious SA, Li T, Mayo-Wilson E, Pham B, Phillips R, Santaguida P, Scherer RW, Gøtzsche PC, Moher D, Ioannidis JPA, Vohra S. CONSORT Harms 2022 statement, explanation, and elaboration: updated guideline for the reporting of harms in randomized trials. J Clin Epidemiol 2023; 158:149-165. [PMID: 37100738 DOI: 10.1016/j.jclinepi.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2023] [Indexed: 04/28/2023]
Abstract
Randomized controlled trials remain the reference standard for healthcare research on effects of interventions, and the need to report both benefits and harms is essential. The Consolidated Standards of Reporting Trials (the main CONSORT) statement includes one item on reporting harms (i.e., all important harms or unintended effects in each group). In 2004, the CONSORT group developed the CONSORT Harms extension; however, it has not been consistently applied and needs to be updated. Here, we describe CONSORT Harms 2022, which replaces the CONSORT Harms 2004 checklist, and shows how CONSORT Harms 2022 items could be incorporated into the main CONSORT checklist. Thirteen items from the main CONSORT were modified to improve harms reporting. Three new items were added. In this article, we describe CONSORT Harms 2022 and how it was integrated into the main CONSORT checklist and elaborate on each item relevant to complete reporting of harms in randomized controlled trials. Until future work from the CONSORT group produces an updated checklist, authors, journal reviewers, and editors of randomized controlled trials should use the integrated checklist presented in this paper.
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Affiliation(s)
- Daniela R Junqueira
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Liliane Zorzela
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Susan Golder
- Department of Health Sciences, University of York, York, UK
| | - Yoon Loke
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Joel J Gagnier
- Department of Epidemiology and Biostatistics, Department of Surgery, Western University, London, Ontario, Canada
| | - Steven A Julious
- Design, Trials and Statistics, School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Tianjing Li
- Department of Ophthalmology, School of Medicine, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Evan Mayo-Wilson
- Department of Epidemiology, UNC Gillings School of Global Public Health, Chapel Hill, NC, USA
| | - Ba Pham
- Knowledge Translation Programme, Unity Health Toronto, Toronto, Ontario, Canada
| | - Rachel Phillips
- Faculty of Medicine, School of Public Health, Imperial College London, London, UK
| | - Pasqualina Santaguida
- Department of Health Research Methods, Evidence and Impact (HEI), McMaster University, Hamilton, Ontario, Canada
| | | | | | - David Moher
- Centre for Journalology, Clinical Epidemiology Programme, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - John P A Ioannidis
- Departments of Medicine, of Epidemiology and Population Health, of Biomedical Data Science, and of Statistics, Stanford University, Stanford, CA, USA
| | - Sunita Vohra
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
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Desai S, Kainth T, Yadav G, Kochhar H, Srinivas S, Kamil S, Du W. Role of Psychosomatic Symptoms in COVID-19 Vaccine Hesitancy. Vaccines (Basel) 2023; 11:vaccines11050922. [PMID: 37243026 DOI: 10.3390/vaccines11050922] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/21/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Vaccination against COVID-19 is one of the highly effective preventative strategies to reduce morbidity and mortality associated with COVID-19 infection. The rapid approval of COVID-19 vaccination due to the raging pandemic, media coverage, anti-vaccination groups, and concerns about adverse effects associated with vaccination has given rise to COVID-19 vaccine hesitancy. Current evidence suggests that psychosomatic and nocebo-related adverse effects account for a significant proportion of common adverse effects following COVID-19 vaccination. The most common adverse effects are headache, fatigue, and myalgia, which are highly prone to nocebo effects. In our review article, we discuss the role of psychosomatic and nocebo effects in COVID-19 vaccination-related hesitancy, predictors of such effects, and strategies to reduce vaccine hesitancy. General education regarding psychosomatic and nocebo effects and specialized education for at-risk populations may reduce psychosomatic and nocebo-related adverse effects following COVID-19 vaccination, ultimately reducing hesitancy.
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Affiliation(s)
- Saral Desai
- Department of Psychiatry, Tower Health-Phoenixville Hospital, Phoenixville, PA 19460, USA
| | - Tejasvi Kainth
- Department of Psychiatry, Stony Brook University, Stony Brook, NY 11794, USA
| | - Garima Yadav
- Department of Psychiatry, Bronx Care Health System, Bronx, NY 10456, USA
| | - Hansini Kochhar
- Department of Psychiatry, Maimonides Medical Center, Brooklyn, NY 11219, USA
| | - Sushma Srinivas
- Department of Psychiatry, A.J. Institute of Medical Sciences and Research Center, Manglore 575004, India
| | - Saher Kamil
- Department of Pediatrics, Dell Children's Medical Center, Austin, TX 78723, USA
| | - Wei Du
- Academic Affairs, Tower Health, West Reading, PA 19611, USA
- Department of Psychiatry, Drexel University College of Medicine, Philadelphia, PA 19102, USA
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Junqueira DR, Zorzela L, Golder S, Loke Y, Gagnier JJ, Julious SA, Li T, Mayo-Wilson E, Pham B, Phillips R, Santaguida P, Scherer RW, Gøtzsche PC, Moher D, Ioannidis JPA, Vohra S. CONSORT Harms 2022 statement, explanation, and elaboration: updated guideline for the reporting of harms in randomised trials. BMJ 2023; 381:e073725. [PMID: 37094878 DOI: 10.1136/bmj-2022-073725] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Affiliation(s)
- Daniela R Junqueira
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Liliane Zorzela
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Susan Golder
- Department of Health Sciences, University of York, York, UK
| | - Yoon Loke
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Joel J Gagnier
- Department of Epidemiology and Biostatistics, Department of Surgery, Western University, London, ON, Canada
| | - Steven A Julious
- Design, Trials and Statistics, School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Tianjing Li
- Department of Ophthalmology, School of Medicine, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Evan Mayo-Wilson
- Department of Epidemiology, UNC Gillings School of Global Public Health, Chapel Hill, NC, USA
| | - Ba Pham
- Knowledge Translation Programme, Unity Health Toronto, Toronto, ON, Canada
| | - Rachel Phillips
- Faculty of Medicine, School of Public Health, Imperial College London, London, UK
| | - Pasqualina Santaguida
- Department of Health Research Methods, Evidence and Impact (HEI), McMaster University, Hamilton, ON, Canada
| | | | | | - David Moher
- Centre for Journalology, Clinical Epidemiology Programme, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada
| | - John P A Ioannidis
- Departments of Medicine, of Epidemiology and Population Health, of Biomedical Data Science, and of Statistics, Stanford University, Stanford, CA, USA
| | - Sunita Vohra
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
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Watanabe T, Sieg M, Lunde SJ, Persson M, Taneja P, Baad-Hansen L, Pigg M, Vase L. Nocebo response in dentistry: A systematic review and meta-analysis of adverse events in analgesic trials of third molar removal. J Oral Rehabil 2023; 50:332-342. [PMID: 36648379 DOI: 10.1111/joor.13414] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 11/09/2022] [Accepted: 01/09/2023] [Indexed: 01/18/2023]
Abstract
BACKGROUND The nocebo response refers to the phenomenon where non-specific factors, including negative verbal suggestion and treatment expectations, cause adverse events (AE) following a placebo treatment. Non-specific factors are also likely to influence AE occurrence following administration of active pharmacological treatments. OBJECTIVE This meta-analysis aimed to estimate the nocebo response in dentistry by assessing the AEs prevalence in placebo- and active arms of randomised controlled trials (RCTs) assessing analgesic treatment following third molar (M3) surgery. METHODS A systematic search was performed in PubMed, Embase, Scopus, Web of Science and the Cochrane Central Register of Controlled Trials. Eligible studies had to report the number of patients experiencing at least one drug-related AE (patients with AE ≥ 1) separately for the active and placebo arms. The proportion of patients with AE ≥ 1 and drug-related dropouts were pooled, and risk differences (RDs) between patients in the placebo- and active arm were calculated. RESULTS In 50 independent RCTs of 47 identified articles, the pooled rates of patients with AE ≥ 1 were 22.8% in the placebo arm and 20.6% in the active arm. The pooled rates of drug-related dropout were 0.24% in the placebo arm and 0.08% in the active arm. There were no significant RDs in patients with AE ≥ 1 and drug-related dropouts. CONCLUSION These results show that patients in the placebo arm reported AEs to the same extent as patients receiving active treatment, suggesting that most AEs in analgesic medication following M3 surgery may be attributed to the nocebo phenomenon.
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Affiliation(s)
- Takeshi Watanabe
- Department of Psychology and Behavioural Sciences, School of Business and Social Sciences, Aarhus University, Aarhus, Denmark.,Department of Preventive Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Mette Sieg
- Department of Psychology and Behavioural Sciences, School of Business and Social Sciences, Aarhus University, Aarhus, Denmark
| | - Sigrid Juhl Lunde
- Department of Psychology and Behavioural Sciences, School of Business and Social Sciences, Aarhus University, Aarhus, Denmark
| | - Mads Persson
- Department of Psychology and Behavioural Sciences, School of Business and Social Sciences, Aarhus University, Aarhus, Denmark
| | - Pankaj Taneja
- Section of Oral and Maxillofacial Surgery and Oral Pathology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.,Scandinavian Center of Orofacial Neurosciences, Aarhus, Denmark.,Scandinavian Center of Orofacial Neurosciences, Malmö, Sweden
| | - Lene Baad-Hansen
- Scandinavian Center of Orofacial Neurosciences, Aarhus, Denmark.,Scandinavian Center of Orofacial Neurosciences, Malmö, Sweden.,Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Maria Pigg
- Scandinavian Center of Orofacial Neurosciences, Aarhus, Denmark.,Scandinavian Center of Orofacial Neurosciences, Malmö, Sweden.,Department of Endodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Lene Vase
- Department of Psychology and Behavioural Sciences, School of Business and Social Sciences, Aarhus University, Aarhus, Denmark
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35
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Roy S, Petrie KJ, Gamble G, Edwards MA. Did a nocebo effect contribute to the rise in special education enrollment following the Flint, Michigan water crisis? CLINICAL PSYCHOLOGY IN EUROPE 2023; 5:e9577. [PMID: 37065004 PMCID: PMC10103158 DOI: 10.32872/cpe.9577] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 02/21/2023] [Indexed: 04/03/2023] Open
Abstract
Background
Exposure to waterborne lead during the Flint Water Crisis during April 2014-October 2015 is believed to have caused increased special education enrollment in Flint children.
Method
This retrospective population-based cohort study utilized de-identified data for children under six years of age who had their blood lead tested during 2011 to 2019, and special education outcomes data for children enrolled in public schools for corresponding academic years (2011-12 to 2019-20) in Flint, Detroit (control city) and the State of Michigan. Trends in the following crisis-related covariates were also evaluated: waterborne contaminants, poverty, nutrition, city governance, school district policies, negative community expectations, media coverage and social media interactions.
Results
Between 2011 and 2019, including the 2014-15 crisis period, the incidence of elevated blood lead in Flint children (≥ 5µg/dL) was always at least 47% lower than in the control city of Detroit (p < .0001) and was also never significantly higher than that for all children tested in Michigan (p = 0.33). Nonetheless, special education enrollment in Flint spiked relative to Detroit and Michigan (p < .0001). There is actually an inverse relationship between childhood blood lead and special education enrollment in Flint.
Conclusion
This study failed to confirm any positive association between actual childhood blood lead levels and special education enrollment in Flint. Negative psychological effects associated with media predictions of brain damage could have created a self-fulfilling prophecy via a nocebo effect. The findings demonstrate a need for improved media coverage of complex events like the Flint Water Crisis.
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36
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Kukafka R, Evans K, Murnane E, Santoro E, Baiocchi M, Landay J, Delp S, Crum A. Effects of Wearable Fitness Trackers and Activity Adequacy Mindsets on Affect, Behavior, and Health: Longitudinal Randomized Controlled Trial. J Med Internet Res 2023; 25:e40529. [PMID: 36696172 PMCID: PMC9909519 DOI: 10.2196/40529] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 10/14/2022] [Accepted: 11/13/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND There is some initial evidence suggesting that mindsets about the adequacy and health consequences of one's physical activity (activity adequacy mindsets [AAMs]) can shape physical activity behavior, health, and well-being. However, it is unknown how to leverage these mindsets using wearable technology and other interventions. OBJECTIVE This research examined how wearable fitness trackers and meta-mindset interventions influence AAMs, affect, behavior, and health. METHODS A total of 162 community-dwelling adults were recruited via flyers and web-based platforms (ie, Craigslist and Nextdoor; final sample size after attrition or exclusion of 45 participants). Participants received an Apple Watch (Apple Inc) to wear for 5 weeks, which was equipped with an app that recorded step count and could display a (potentially manipulated) step count on the watch face. After a baseline week of receiving no feedback about step count, participants were randomly assigned to 1 of 4 experimental groups: they received either accurate step count (reference group; 41/162, 25.3%), 40% deflated step count (40/162, 24.7%), 40% inflated step count (40/162, 24.7%), or accurate step count+a web-based meta-mindset intervention teaching participants the value of adopting more positive AAMs (41/162, 25.3%). Participants were blinded to the condition. Outcome measures were taken in the laboratory by an experimenter at the beginning and end of participation and via web-based surveys in between. Longitudinal analysis examined changes within the accurate step count condition from baseline to treatment and compared them with changes in the deflated step count, inflated step count, and meta-mindset conditions. RESULTS Participants receiving accurate step counts perceived their activity as more adequate and healthier, adopted a healthier diet, and experienced improved mental health (Patient-Reported Outcomes Measurement Information System [PROMIS]-29) and aerobic capacity but also reduced functional health (PROMIS-29; compared with their no-step-count baseline). Participants exposed to deflated step counts perceived their activity as more inadequate; ate more unhealthily; and experienced more negative affect, reduced self-esteem and mental health, and increased blood pressure and heart rate (compared with participants receiving accurate step counts). Inflated step counts did not change AAM or most other outcomes (compared with accurate step counts). Participants receiving the meta-mindset intervention experienced improved AAM, affect, functional health, and self-reported physical activity (compared with participants receiving accurate step counts only). Actual step count did not change in either condition. CONCLUSIONS AAMs--induced by trackers or adopted deliberately--can influence affect, behavior, and health independently of actual physical activity. TRIAL REGISTRATION ClinicalTrials.gov NCT03939572; https://www.clinicaltrials.gov/ct2/show/NCT03939572.
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Affiliation(s)
| | - Kristopher Evans
- Department of Psychology, Stanford University, Stanford, CA, United States
| | - Elizabeth Murnane
- Department of Computer Science, Stanford University, Stanford, CA, United States
| | - Erik Santoro
- Department of Psychology, Stanford University, Stanford, CA, United States
| | - Michael Baiocchi
- Department of Epidemiology and Population Health, Stanford University, Stanford, CA, United States
| | - James Landay
- Department of Computer Science, Stanford University, Stanford, CA, United States
| | - Scott Delp
- Department of Mechanical Engineering, Department of Bioengineering, Stanford University, Stanford, CA, United States
| | - Alia Crum
- Department of Psychology, Stanford University, Stanford, CA, United States
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Shedden-Mora MC, Alberts J, Petrie KJ, Laferton JAC, von Blanckenburg P, Kohlmann S, Nestoriuc Y, Löwe B. The Treatment Expectation Questionnaire (TEX-Q): Validation of a generic multidimensional scale measuring patients' treatment expectations. PLoS One 2023; 18:e0280472. [PMID: 36689398 PMCID: PMC9870103 DOI: 10.1371/journal.pone.0280472] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 12/31/2022] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Patients' expectations, as a central mechanism behind placebo and nocebo effects, are an important predictor of health outcomes. Yet, theoretically based generic assessment tools allowing for an integrated understanding of expectations across conditions and treatments are lacking. Based on the preliminary 35-item version, this study reports the development and validation of the Treatment Expectation Questionnaire (TEX-Q), a generic, multidimensional self-report scale measuring patients' expectations of medical and psychological treatments. METHODS The TEX-Q was developed in a validation sample of n = 251 patients undergoing different treatments using exploratory factor analyses and item analyses, as well as analysis of convergent and divergent validity. Confirmatory factor analysis was conducted in an independent sample of n = 303 patients undergoing cancer treatment. Two-weeks test-retest reliability was assessed in n = 28 psychosomatic outpatients. RESULTS Factor analyses revealed six theoretically founded stable subscales. The TEX-Q assesses expectations of treatment benefit, positive impact, adverse events, negative impact, process and behavioural control with a total of 15 items. Results for the subscales and the sum score indicated good internal consistency (α = .71-.92), moderate to high test-retest reliability (r = .39-.76) as well as good convergent validity with regard to other expectation measures (r = .42-.58) and divergent validity with regard to measures of generalized expectations (r < .32) and psychopathology (r < .28). CONCLUSIONS While further validation is needed, the results suggest that the TEX-Q is a valid and reliable scale for the generic, multidimensional assessment of patients' treatment expectations. The TEX-Q overcomes constraints of ad-hoc and disease-specific scales, while allowing to compare the impact of different expectation constructs across conditions and treatments.
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Affiliation(s)
- Meike C. Shedden-Mora
- Department of Psychology, Medical School Hamburg, Hamburg, Germany
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jannis Alberts
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Keith J. Petrie
- Department of Psychological Medicine, University of Auckland, Auckland, New Zealand
| | | | - Pia von Blanckenburg
- Department of Clinical Psychology and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - Sebastian Kohlmann
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Yvonne Nestoriuc
- Department of Clinical Psychology, Helmut-Schmidt-University /University of the federal armed forces Hamburg, Hamburg, Germany
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Bernd Löwe
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Gerke L, Meyrose AK, Nestoriuc Y. Informed consent for psychotherapy: Ethical illusion or clinical reality? A survey about psychotherapists' attitudes and practices in Germany. Clin Psychol Psychother 2023; 30:166-178. [PMID: 36210744 DOI: 10.1002/cpp.2790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 02/03/2023]
Abstract
OBJECTIVE This study aimed to assess clinicians' attitudes and their current clinical practices regarding informed consent for psychotherapy. METHOD A convenience sample of N = 530 clinicians in Germany (n = 418 licensed psychotherapists and n = 112 postgraduate psychotherapy trainees) took part in an online survey. RESULTS Most clinicians (84%) reported obtaining informed consent for psychotherapy in their daily routine. However, many psychotherapists felt unsure about satisfactorily fulfilling the legal (63%) and ethical obligations (52%). The two most frequently reported components of information disclosure related to explaining the terms and conditions of psychotherapy (96%) and the psychotherapeutic approach (91%). Providing information about mechanisms of psychotherapy (33%) and the role of expectations (30%) were least practiced. One in five psychotherapists reported not informing clients about potential risks and side effects. A considerable proportion reported concern about inducing anxiety in patients by disclosing information about risks and side effects (52%). CONCLUSIONS Although obtaining informed consent for psychotherapy seems to be the rule rather than the exception in clinical practice, the quality of its implementation in terms of legal, ethical and clinical demands remains questionable. Training psychotherapists in providing comprehensive informed consent enables informed decision-making and might have a positive influence on treatment expectations and outcomes.
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Affiliation(s)
- Leonie Gerke
- Department of Clinical Psychology, Helmut Schmidt University/University of the Federal Armed Forces Hamburg, Hamburg, Germany
| | - Ann-Katrin Meyrose
- Department of Clinical Psychology, Helmut Schmidt University/University of the Federal Armed Forces Hamburg, Hamburg, Germany.,Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Yvonne Nestoriuc
- Department of Clinical Psychology, Helmut Schmidt University/University of the Federal Armed Forces Hamburg, Hamburg, Germany.,Institute of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Kunkel A, Bingel U. [Placebo effects in analgesia : Influence of expectations on the efficacy and tolerability of analgesic treatment]. Schmerz 2023; 37:59-71. [PMID: 36637498 PMCID: PMC9889476 DOI: 10.1007/s00482-022-00685-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2022] [Indexed: 01/14/2023]
Abstract
Expectations of patients influence the perception and neuronal processing of acute and chronic pain and modulate the effectiveness of analgesic treatment. The expectation of treatment is not only the most important determinant of placebo analgesia. Expectations of treatment also influence the efficacy and tolerability of "active" pharmacological and non-pharmacological treatment of pain. Recent insights into the psychological and neurobiological mechanisms underlying the clinically relevant effects of treatment expectations enable and call for the systematic integration and modulation of treatment expectations into analgesic treatment concepts. Such a strategy promises to optimize analgesic treatment and to prevent or reduce the burden of unwanted side effects and the misuse of analgesics, particularly of opioids. This review highlights the current concepts, recent achievements and also challenges and key open research questions.
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Affiliation(s)
- Angelika Kunkel
- Klinik für Neurologie, Zentrum für translationale Neuro- und Verhaltenswissenschaften, Universitätsklinikum Essen, Hufelandstr. 55, 45147, Essen, Deutschland.
| | - Ulrike Bingel
- Klinik für Neurologie, Zentrum für translationale Neuro- und Verhaltenswissenschaften, Universitätsklinikum Essen, Hufelandstr. 55, 45147, Essen, Deutschland
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40
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MacKrill K. Impact of media coverage on side effect reports from the COVID-19 vaccine. J Psychosom Res 2023; 164:111093. [PMID: 36435094 PMCID: PMC9670676 DOI: 10.1016/j.jpsychores.2022.111093] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 11/10/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Past research shows that media coverage of medicine side effects can produce a nocebo response. New Zealand news media discussed myocarditis following the Pfizer COVID-19 vaccine. This study examined whether side effects mentioned in the media increased compared to control symptoms not mentioned. METHODS The study analysed 64,086 vaccine adverse reaction reports, retrieved from the medicine safety authority. Generalised linear regressions compared the side effect rate during three discrete periods of media reporting (August 2021, December 2021, April 2022) with the pre-media baseline rate. The outcomes were weekly reports of chest discomfort, monthly reports of chest, heart and breathing symptoms, and myocarditis, pericarditis, and anxiety. Control symptoms were fever, numbness, and musculoskeletal pain. Logistic regressions investigated factors associated with side effect reporting. RESULTS The reporting rate of chest discomfort was 190% greater in the five weeks after the first media item (p < .001). The monthly reporting rates of the symptoms mentioned in the media were significantly greater after the news coverage (ps ≤ 0.001). There was no effect of media on the control side effect fever (p = .06). There was an effect of media on myocarditis, pericarditis and anxiety (ps < 0.001). Anxiety, male gender, and younger age were significantly associated with side effects. CONCLUSION The results indicate that a media-induced nocebo response occurred. This is most likely due to increased expectations and awareness of COVID-19 vaccine side effects, elevated symptom experience from anxiety, and consequently greater reporting of the symptoms in line with the media coverage.
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Affiliation(s)
- Kate MacKrill
- Department of Psychological Medicine, University of Auckland, Auckland, New Zealand..
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Faasse K, Keevers Y, de Groot A, Nicholls K, Helfer SG, Geers AL. Choice and the nocebo effect: If a little is good, more is better? J Psychosom Res 2023; 164:111083. [PMID: 36435093 DOI: 10.1016/j.jpsychores.2022.111083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/01/2022] [Accepted: 11/06/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Lack of choice over treatment may increase the nocebo effect, whereby unpleasant side effects can be triggered by the treatment context, beyond any inherent physiological effects of the treatment itself. Excessive choice may also increase the nocebo effect. The current studies tested these possibilities. METHOD Participants took part in studies ostensibly investigating the influence of beta-blockers (Study 1, n = 71) and benzodiazepines (Study 2, n = 120) on anxiety. All treatments were placebos. In Study 1, participants were randomly allocated to three groups: no-treatment control, no-choice, and choice between two treatments. In Study 2, a ten-choice group was added. Participants were warned about possible treatment side effects. These warned symptoms were assessed, and scores summed. Nocebo effects were evidenced by significantly higher warned symptoms scores in any placebo-treated group compared to the control group. RESULTS In both studies, the no-choice groups experienced a nocebo effect (S1: p = .003, ηp2= 0.121; S2: p = .022, ηp2= 0.045). A significant nocebo effect was not present in groups who chose between two treatments (S1: p = .424, ηp2= 0.009; S2: p = .49, ηp2= 0.004). In Study 2, choosing between ten treatments resulted in a nocebo effect (p = .006, ηp2= 0.065). CONCLUSION Lack of choice resulted in the development of nocebo effects, while having a limited choice between two placebos did not generate significant nocebo effects. However, a larger choice between ten placebos generated a nocebo effect of similar magnitude to lack of choice. Facilitating (some) choice in medical care may reduce the development of nocebo effects, but more extensive choice options may not offer similar benefits.
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Affiliation(s)
- Kate Faasse
- School of Psychology, University of New South Wales, Sydney, NSW, Australia.
| | - Yvette Keevers
- School of Psychology, University of New South Wales, Sydney, NSW, Australia
| | - Annalise de Groot
- School of Psychology, University of New South Wales, Sydney, NSW, Australia
| | - Kate Nicholls
- School of Psychology, University of New South Wales, Sydney, NSW, Australia
| | | | - Andrew L Geers
- Department of Psychology, University of Toledo, Toledo, OH, USA
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Social communication pathways to COVID-19 vaccine side-effect expectations and experience. J Psychosom Res 2023; 164:111081. [PMID: 36399990 PMCID: PMC9646444 DOI: 10.1016/j.jpsychores.2022.111081] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/31/2022] [Accepted: 11/06/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Negative beliefs about medication and vaccine side-effects can spread rapidly through social communication. This has been recently documented with the potential side-effects from the COVID-19 vaccines. We tested if pre-vaccination social communications about side-effects from personal acquaintances, news reports, and social media predict post-vaccination side-effect experiences. Further, as previous research suggests that side-effects can be exacerbated by negative expectations, we assessed if personal expectations mediate the relationships between social communication and side-effect experience. METHOD In a prospective longitudinal survey (N = 551), COVID-19 vaccine side-effect information from three sources-social media posts, news reports, and first-hand accounts from personal acquaintances-as well as side-effect expectations, were self-reported pre-vaccination. Vaccination side-effect experience was assessed post-vaccination. RESULTS In multivariate regression analyses, the number of pre-vaccination social media post views (β = 0.17) and impressions of severity conveyed from personal acquaintances (β = 0.42) significantly predicted an increase in pre-vaccination side-effect expectations, and the same variables (βs = 0.11, 0.14, respectively) predicted post-vaccination side-effect experiences. Moreover, pre-vaccination side-effect expectations mediated the relationship between both sources of social communication and experienced side-effects from a COVID-19 vaccination. CONCLUSIONS This study identifies links between personal acquaintance and social media communications and vaccine side-effect experiences and provides evidence that pre-vaccination expectations account for these relationships. The results suggest that modifying side-effect expectations through these channels may change the side-effects following a COVID-19 vaccination as well as other publicly discussed vaccinations and medications.
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Gasteiger C, Perera A, Yielder R, Scholz U, Dalbeth N, Petrie KJ. Using family-centered communication to optimize patient-provider-companion encounters about changing to biosimilars: A randomized controlled trial. PATIENT EDUCATION AND COUNSELING 2023; 106:142-150. [PMID: 36400636 DOI: 10.1016/j.pec.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 10/27/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE To explore whether family-centered communication impacts decisions and optimizes patient-companion-provider consultations. METHODS A parallel, two-arm randomized controlled trial was conducted with 108 participants acting as patients with inflammatory arthritis or companions. Pairs attended a mock consultation where a physician explained the change from a bio-originator to a biosimilar using family-centered or patient-only communication. Participants reported their willingness to transition, risk perceptions, understanding and social support, and completed various scales including the Patient Perception Scale. Interviews helped understand perceptions towards the consultation. RESULTS Family-centered communication did not impact willingness to change or cognitive risk perceptions compared to patient-only communication. However, it improved emotional risk perceptions (p = 0.047, Cohen's d=.55) and satisfaction with communication (p = 0.015, Cohen's d=.71). Feeling the explanation was reassuring was associated with less worry (p = 0.004). Receiving emotional support (p = 0.014) and companions asking fewer questions (p = 0.046) were associated with higher recall. The intervention improved companion involvement (p < 0.001, Cohen's d= 1.23) and support (p = 0.002, Cohen's d=.86). Interviews showed that encouraging questions, inclusive body language, and acknowledging companions facilitated involvement. CONCLUSION Family-centered communication augments patient-companion-provider encounters but does not influence willingness to change treatment. PRACTICE IMPLICATIONS Practitioners can use family-centered communication when discussing biosimilars but should provide reassurance, encourage emotional support, and summarize key points to improve understanding.
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Affiliation(s)
- Chiara Gasteiger
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
| | - Anna Perera
- School of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Rachael Yielder
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Urte Scholz
- University Research Priority Program "Dynamics of Healthy Aging," University of Zurich, Zurich, Switzerland; Department of Psychology - Applied Social and Health Psychology, University of Zurich, Zurich, Switzerland
| | - Nicola Dalbeth
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Department of Rheumatology, Auckland District Health Board, Auckland, New Zealand
| | - Keith J Petrie
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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Bierbauer W, Lüscher J, Scholz U. Illness perceptions in long-COVID: A cross-sectional analysis in adults. COGENT PSYCHOLOGY 2022. [DOI: 10.1080/23311908.2022.2105007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
Affiliation(s)
- W. Bierbauer
- Applied Social and Health Psychology, Department of Psychology, University of Zurich, Zurich, Switzerland
- University Research Priority Program “Dynamics of Healthy Aging,” University of Zurich, Switzerland
| | - J. Lüscher
- Applied Social and Health Psychology, Department of Psychology, University of Zurich, Zurich, Switzerland
- Swiss Paraplegic Research, Nottwil, Switzerland
| | - U. Scholz
- Applied Social and Health Psychology, Department of Psychology, University of Zurich, Zurich, Switzerland
- University Research Priority Program “Dynamics of Healthy Aging,” University of Zurich, Switzerland
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Tu Y, Zhang L, Kong J. Placebo and nocebo effects: from observation to harnessing and clinical application. Transl Psychiatry 2022; 12:524. [PMID: 36564374 PMCID: PMC9789123 DOI: 10.1038/s41398-022-02293-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 12/25/2022] Open
Abstract
Placebo and nocebo effects are salubrious benefits and negative outcomes attributable to non-specific symbolic components. Leveraging advanced experimental and analytical approaches, recent studies have elucidated complicated neural mechanisms that may serve as a solid basis for harnessing the powerful self-healing and self-harming capacities and applying these findings to improve medical practice and minimize the unintended exacerbation of symptoms in medical practice. We review advances in employing psychosocial, pharmacological, and neuromodulation approaches to modulate/harness placebo and nocebo effects. While these approaches show promising potential, translating these research findings into clinical settings still requires careful methodological, technical, and ethical considerations.
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Affiliation(s)
- Yiheng Tu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China. .,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
| | - Libo Zhang
- grid.9227.e0000000119573309CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China ,grid.410726.60000 0004 1797 8419Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Jian Kong
- grid.32224.350000 0004 0386 9924Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA USA
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Li R, Chen F, He X, Feng Y, Pei Q, Wang D, Liu X, Liu J, Hou X, Bai T. Nocebo response intensity and influencing factors in the randomized clinical trials of irritable bowel syndrome: A systematic review and meta-analysis. Front Med (Lausanne) 2022; 9:1018713. [PMID: 36606047 PMCID: PMC9807875 DOI: 10.3389/fmed.2022.1018713] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 11/21/2022] [Indexed: 12/24/2022] Open
Abstract
Objective To estimate the magnitude of the nocebo response and explore its influencing factors in irritable bowel syndrome (IBS). Methods The PubMed, Embase, and Cochrane Library databases were searched up to March 2021. We performed a random effects meta-analysis of the proportion of adverse events (AEs) in placebo-treated patients with IBS who are involved in parallel-designed, randomized, placebo-controlled trials investigating pharmacological interventions and evaluated the effect of trial characteristics on the magnitude of the nocebo response rate. Results A total of 6,107 studies were identified from the databases. After evaluation, 53 met the eligibility criteria and were included. The overall pooled nocebo response rate was 32% (95% CI: 26-38%). The most commonly reported AEs were headache (9%), nasopharyngitis (7%), abdominal pain (4%), and nausea (4%). The nocebo response rate was low compared with that in the treatment group applying probiotics, antispasmodics, and Traditional Chinese medicine, but high compared with that in antibiotic treatment group. The nocebo rate in patients using diaries to record AEs was lower than the average, and was higher in patients recording through checkup. Discussion Patients with IBS have significant nocebo response intensity in clinical trials. Based on findings in this study, we recommend the researchers pay attention to the common AEs and carefully analyze the relation to the intervention.
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Vaccine hesitancy prospectively predicts nocebo side-effects following COVID-19 vaccination. Sci Rep 2022; 12:20018. [PMID: 36470896 PMCID: PMC9722845 DOI: 10.1038/s41598-022-21434-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 09/27/2022] [Indexed: 12/09/2022] Open
Abstract
The directionality between vaccine hesitancy and COVID-19 vaccine side-effects has not been hitherto examined. We hypothesized a nocebo effect, whereby vaccine hesitancy towards the second Pfizer vaccination dose predicts subsequent side-effects for a booster dose, beyond other effects. We expected these nocebo effects to be driven by (mis)information in males and prior experience in females. A representative sample of older adults (n = 756, mean age = 68.9 ± 3.43) were questioned in a typical cross-lagged design (wave 1 following a second Pfizer dose, wave 2 after their booster). As hypothesized, earlier vaccine hesitancy predicted subsequent booster side-effects for females (β = 0.10 p = 0.025, f 2 = 0.02) and males (β = 0.34, p < 0.001, f 2 = 0.16); effects were stronger in males (χ2Δ (1) = 4.34, p = 0.03). The (W1-to-W2) side-effect autoregression was stronger in females (β = .34, p < 0.001; males β = 0.18, p < 0.001), χ2Δ (1) = 26.86, p < 0.001. Results show that a quantifiable and meaningful portion of COVID-19 vaccine side-effects is predicted by vaccine hesitancy, demonstrating that side-effects comprise a psychosomatic nocebo component in vaccinated individuals. The data reveal distinct risk levels for future side-effects, suggesting the need to tailor public health messaging.
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Moir F, Patten B, Yielder J, Sohn CS, Maser B, Frank E. Trends in medical students' health over 5 years: Does a wellbeing curriculum make a difference? Int J Soc Psychiatry 2022; 69:675-688. [PMID: 36453078 PMCID: PMC10149885 DOI: 10.1177/00207640221133944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
BACKGROUND Trends in New Zealand (NZ) medical students' health and the influence of a wellbeing curricula are unknown. METHODS The author's collected self-report data from NZ medical students on 'Graduation Day' from 2014 to 2018, using a serial cross-sectional survey design with validated scales assessing psychological health, stigma, coping, and lifestyle. Comparisons were made with NZ general population same-age peers. Analyses examined trends, differences between 'cohorts' of students receiving different exposures to a wellbeing curriculum, and correlations between students' own lifestyle practices and their frequency of talking with patients about those topics. RESULTS Of 1,062 students, 886 participated. The authors found statistically significant self-reported increases from 2014 to 2018 for negative psychological indices, including scores for distress and burnout, suicidal thoughts in the preceding year, and the likelihood of being diagnosed with an anxiety disorder. There was a significant increase in numbers of students reporting having their own doctor as well as increased healthy coping strategies and a significant decrease in stigma scores. Academic cohorts of students who had completed a wellbeing curriculum were more likely to report high distress levels, having been diagnosed with a mood disorder, and being non-drinkers than students without wellbeing training. When compared to NZ peers, medical students smoked less, exercised more, and were less likely to have diagnosed mood and anxiety disorders, but reported more distress. The authors found a significant correlation between the amount of exercise students undertook and their likelihood to discuss exercise with patients. CONCLUSIONS NZ medical students have better physical health than general population peers and are more likely to discuss exercise with patients if exercising themselves. However, cohorts of graduating students report increasing distress despite the implementation of a wellbeing curriculum. Research is needed into mechanisms between students' self-awareness, willingness to report distress, stigma, mind-set, coping, and psychological outcomes, to inform curriculum developers.
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Affiliation(s)
- Fiona Moir
- Medical Programme Directorate, University of Auckland, New Zealand
| | - Bradley Patten
- Medical Programme Directorate, University of Auckland, New Zealand
| | - Jill Yielder
- Medical Programme Directorate, University of Auckland, New Zealand
| | | | - Brandon Maser
- Department of Paediatrics and Institute of Health Policy, Management and Evaluation, University of Toronto, Ontario, Canada
| | - Erica Frank
- Faculty of Medicine, University of British Columbia, Vancouver, Canada.,Annenberg Physician Training Program in Addiction Medicine, Bethel, MI, USA
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Salzmann S, Laferton JAC, Shedden-Mora MC, Horn N, Gärtner L, Schröder L, Rau J, Schade-Brittinger C, Murmann K, Rastan A, Andrási TB, Böning A, Salzmann-Djufri M, Löwe B, Brickwedel J, Albus C, Wahlers T, Hamm A, Hilker L, Albert W, Falk V, Zimmermann T, Ismail I, Strauß B, Doenst T, Schedlowski M, Moosdorf R, Rief W. Pre-surgery optimization of patients' expectations to improve outcome in heart surgery: Study protocol of the randomized controlled multi-center PSY-HEART-II trial. Am Heart J 2022; 254:1-11. [PMID: 35940247 DOI: 10.1016/j.ahj.2022.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
The PSY-HEART-I trial indicated that a brief expectation-focused intervention prior to heart surgery improves disability and quality of life 6 months after coronary artery bypass graft surgery (CABG). However, to investigate the clinical utility of such an intervention, a large multi-center trial is needed to generalize the results and their implications for the health care system. The PSY-HEART-II study aims to examine whether a preoperative psychological intervention targeting patients' expectations (EXPECT) can improve outcomes 6 months after CABG (with or without heart valve replacement). EXPECT will be compared to Standard of Care (SOC) and an intervention providing emotional support without targeting expectations (SUPPORT). In a 3-arm multi-center randomized, controlled, prospective trial (RCT), N = 567 patients scheduled for CABG surgery will be randomized to either SOC alone or SOC and EXPECT or SOC and SUPPORT. Patients will be randomized with a fixed unbalanced ratio of 3:3:1 (EXPECT: SUPPORT: SOC) to compare EXPECT to SOC and EXPECT to SUPPORT. Both psychological interventions consist of 2 in-person sessions (à 50 minute), 2 phone consultations (à 20 minute) during the week prior to surgery, and 1 booster phone consultation post-surgery 6 weeks later. Assessment will occur at baseline approx. 3-10 days before surgery, preoperatively the day before surgery, 4-6 days later, and 6 months after surgery. The study's primary end point will be patients' illness-related disability 6 months after surgery. Secondary outcomes will be patients' expectations, subjective illness beliefs, quality of life, length of hospital stay and blood sample parameters (eg, inflammatory parameters such as IL-6, IL-8, CRP). This large multi-center trial has the potential to corroborate and generalize the promising results of the PSY-HEART-I trial for routine care of cardiac surgery patients, and to stimulate revisions of treatment guidelines in heart surgery.
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Affiliation(s)
- Stefan Salzmann
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany.
| | | | - Meike C Shedden-Mora
- Department of Psychology, Medical School Hamburg, Hamburg, Germany; Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Nicole Horn
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany
| | - Laura Gärtner
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany
| | - Lara Schröder
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany
| | - Jörn Rau
- Coordination Center for Clinical Trials (KKS), University of Marburg, Marburg, Germany
| | | | - Kirsten Murmann
- Coordination Center for Clinical Trials (KKS), University of Marburg, Marburg, Germany
| | - Ardawan Rastan
- Department for Cardiovascular Surgery, Heart Center, Philipps University of Marburg, Marburg, Germany
| | - Térezia B Andrási
- Department for Cardiovascular Surgery, Heart Center, Philipps University of Marburg, Marburg, Germany
| | - Andreas Böning
- Department of Cardiovascular Surgery, University Hospital Giessen, Giessen, Germany
| | | | - Bernd Löwe
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Brickwedel
- Department of Cardiovascular Surgery, University Heart & Vascular Center Hamburg, Hamburg, Germany
| | - Christian Albus
- Department of Psychosomatics and Psychotherapy, Medical Faculty and University Hospital, University of Cologne, Cologne, Germany
| | - Thorsten Wahlers
- Department of Cardiothoracic Surgery, University Hospital of Cologne, Cologne, Germany
| | - Alfons Hamm
- Department of Physiological and Clinical Psychology/ Psychotherapy, University of Greifswald, Greifswald, Germany
| | - Lutz Hilker
- Department of Cardiovascular Surgery, Clinic Karlsburg, Heart and Diabetes Center Mecklenburg-Western Pommerania, Karlsburg, Germany
| | | | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
| | - Tanja Zimmermann
- Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - Issam Ismail
- Division of Cardiac, Thoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Bernhard Strauß
- Institute of Psychosocial Medicine, Psychotherapy, and Psychooncology, University Hospital Jena, Germany
| | - Torsten Doenst
- Jena University Hospital, Friedrich-Schiller-University of Jena, Jena, Germany
| | - Manfred Schedlowski
- Institute of Medical Psychology and Behavioral Immunobiology, University Clinic Essen, Essen, Germany, and Department of Clinical Neuroscience, Osher Center for Integrative Medicine, Karolinska Institute, Stockholm, Sweden
| | - Rainer Moosdorf
- Department for Cardiovascular Surgery, Heart Center, Philipps University of Marburg, Marburg, Germany
| | - Winfried Rief
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany
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Gasteiger C, Gasteiger N, Petrie KJ. Pharmacists' confidence in explaining biosimilars to patients before a nationwide medicine change: A cross-sectional study. EXPLORATORY RESEARCH IN CLINICAL AND SOCIAL PHARMACY 2022; 8:100199. [DOI: 10.1016/j.rcsop.2022.100199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/15/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022] Open
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