Scientists test reliability of pain measures in capsaicin model
NCT ID NCT07625475
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether two common pain tests (temporal summation and offset analgesia) give consistent results when used multiple times in healthy adults. 16 volunteers had capsaicin cream applied to their skin to create temporary sensitivity, then the tests were repeated. The goal was to help researchers choose the best methods for future pain studies, not to treat any disease.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
16 people
The number who actually took part.
- Started
-
May 2024
- Finished
-
Apr 2025
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 years and older
- Sex
-
Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Healthy adult volunteers (≥18 years of age) * Able to provide written informed consent in English Exclusion Criteria: * Current or chronic pain * Neurological disease * Skin conditions or sensitivity over the test sites to capsaicin * Contraindications to thermal stimulation of the skin * Musculoskeletal conditions that could alter somatosensory processing * Use of analgesic medications within 24 hours prior to each session * Use of caffeine within 24 hours prior to each session * Use of alcohol within 24 hours prior to each session
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Central nervous system sensitization are added.
Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Human Health Sciences, University of Guelph
Guelph, Ontario, N1G2W1, Canada
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a neck device dial down pain by zapping the vagus nerve?
- Can a common cough drug dampen pain sensitivity?
- Virtual reality cartoons could replace needles for Kids' dental fear
- Can a pinch of naloxone stop opioids from making pain worse?
- New study aims to unravel fibromyalgia pain mysteries
- New pain pump after back surgery could cut opioid use