Evidence map›Paper›PMID 26785162›Full record

ReviewPain2016

Placebo, nocebo, and neuropathic pain.

Lene Vase, Ina Skyt, Kathryn T Hall

Open access · goldAbstract readReview
In one paragraph

Review in Pain, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
2.5field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Pain Reduction after Short Exposure to Virtual Reality Environments in People with Spinal Cord Injury.International journal of environmental research and public health · 2021
    Article
  9. Review
  10. Article
  11. Article
  12. The role of hedonics in the Human Affectome.Neuroscience and biobehavioral reviews · 2019
    Review
  13. Review
  14. Article
  15. Review
  16. Review
  17. Neuropathic pain.Nature reviews. Disease primers · 2017
    Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 2 countries.

Lene VaseDepartment of Psychology and Behavioural Sciences, Aarhus University, Aarhus, Denmark Danish Pain Research Center, Aarhus University Hospital, Aarhus, Denmark Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, USA Program in Placebo Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
Ina Skyt
Kathryn T Hall
Aarhus University Hospital · DKBrigham and Women's Hospital · US

Funding

Research Training in Complementary and Integrative MedicineT32AT000051 · NCCIH · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI GLORIA Y YEH · 1999 to 2026
$10.2M
Mentoring and Research in Placebo Studies, Asian Medicine, and CAMK24AT004095 · NCCIH · HARVARD MEDICAL SCHOOL · PI KAPTCHUK, TED · 2007 to 2016
$1.4M
Epidemiological, pharmacogenomic and clinical impact of catechol-O-methyltransferase on cardiovascular diseaseK01HL130625 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI HALL, KATHRYN TAYO · 2016 to 2021
$921k
NCCIH NIH HHS K24 AT004095NCCIH NIH HHS T32 AT000051NHLBI NIH HHS K01 HL130625
6 · The paper itself

Abstract

Over the last decade, the apparent increase in placebo responses in randomized controlled trials (RCTs) of neuropathic pain have complicated and potentially limited development and availability of new effective pain medication. Placebo analgesia and nocebo hyperalgesia effects are well described in nociceptive and idiopathic pain conditions, but less is known about the magnitude and mechanisms of placebo and nocebo effects in neuropathic pain. In neuropathic pain, placebo treatments have primarily been used as control conditions for active agents under investigation in RCTs and these placebo responses are typically not controlled for the natural history of pain and other confounding factors. Recently, mechanistic studies that control for the natural history of pain have investigated placebo and nocebo effects in neuropathic pain in their own right. Large placebo analgesia but no nocebo hyperalgesic effects have been found, and the underlying mechanisms are beginning to be elucidated. Here we review placebo and nocebo effects and the underlying mechanisms in neuropathic pain and compare them with those of nociceptive and idiopathic pain. This allows for a novel discussion on how knowledge of psychological, neurobiological, and genetic factors underlying well-controlled placebo effects may help improve the information that can be obtained from and potentially restore the utility of RCTs.

Indexed as

Placebo EffectHumansNeuralgiaPain Measurement

Identifiers

PMID26785162
PMCPMC4924515
OpenAlexW2415742499

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.