An Exploratory Study on the Quantification of Pain Stimuli Using a Pain Checker

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-jRCT1040240106

Enrollment

Registered

2024-10-16

Start date

2024-10-16

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

none

Interventions

Pain stimuli will be applied to the nail beds of all fingers on the non-dominant hand of the participants using a pain checker developed by the researcher.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Adult men and women aged 18 years or older 2. Individuals who have provided consent to participate in this study by signing the consent form

Exclusion criteria

Exclusion criteria: 1. Individuals with peripheral neuropathy, such as diabetes or carpal tunnel syndrome 2. Individuals with injuries to the non-dominant hand's fingers or nails 3. Individuals who have taken analgesics within six hours prior to participation 4. Individuals undergoing anticoagulant therapy or with a bleeding tendency

Design outcomes

Primary

Measure	Time frame
The pressure value (g) per unit area at the moment the participant perceives the pain stimulus on the nail bed as painful.	—

Secondary

Measure	Time frame
Height, Weight and BMI	—

Contacts

Public ContactNaruse Aiko

Hamamatsu University School of Medicine

anaruse@hama-med.ac.jp+81-534352431

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026