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The Placebo Effect in Pain Therapies
1Department of Pain and Translational Symptom Science, School of Nursing; Department of Anesthesiology, School of Medicine; and Center to Advance Chronic Pain Research, University of Maryland, Baltimore, Maryland 21201, USA;
Annual Review of Pharmacology and Toxicology
|September 15, 2018
Summary
Understanding endogenous pain modulation and placebo effects is key to personalized pain management. These mechanisms explain pain variability and inform new therapeutic strategies.
Area of Science:
- Neuroscience
- Pharmacology
- Pain Management
Background:
- Current pain management often targets ascending pathways and opioids.
- The role of endogenous descending modulatory systems in pain is under-explored.
- Variability in patient pain experience and treatment response remains poorly understood.
Purpose of the Study:
- To review the critical elements of placebo mechanisms in pain.
- To highlight the impact of endogenous modulatory systems on pain.
- To inform clinical trial methodology and personalized pain management.
Main Methods:
- Literature review of placebo effects and endogenous pain modulation.
- Analysis of expectancy-induced analgesia.
- Exploration of mechanisms influencing pain processing and clinical outcomes.
Main Results:
- Placebo effects, driven by patient expectancies, significantly influence pain perception and outcomes.
- Endogenous descending modulatory systems play a crucial role in pain variability.
- Understanding these mechanisms can explain differences in pain severity and treatment adherence.
Conclusions:
- Placebo mechanisms offer insights into individual pain modulation.
- This knowledge can guide the development of novel therapeutic targets.
- Advancing personalized pain management strategies is a key outcome.
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