Cultural adaptation and validation of a pain questionnaire in Turkish

Investigation of the Cultural Adaptation, Validity, and Reliability of the Turkish Version of the Central Aspects of Pain (CAP) Questionnaire

Observational Hacettepe University · NCT06825650

This study is testing a new version of a pain questionnaire for Turkish-speaking people with chronic pain conditions like osteoarthritis, back pain, and fibromyalgia to see if it accurately reflects their experiences.

Quick facts

Study typeObservational
Enrollment300 (estimated)
Ages18 Years and up
SexAll
SponsorHacettepe University Academic / other
Locations1 site (Ankara, Altındağ)
Trial IDNCT06825650 on ClinicalTrials.gov

What this trial studies

This study focuses on adapting the CAP questionnaire, originally designed to assess nociplastic pain in musculoskeletal disorders, for Turkish-speaking populations. It aims to evaluate the cultural relevance, validity, and reliability of this adapted version among individuals suffering from osteoarthritis, back pain, and fibromyalgia. By addressing the unique cultural context, the study seeks to ensure that the questionnaire accurately reflects the experiences of Turkish patients with chronic pain. Participants will complete the questionnaire to help researchers understand the nuances of nociplastic pain in this demographic.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 18 years old with a diagnosis of osteoarthritis, back pain, or fibromyalgia.

Not a fit: Patients with uncontrolled or clinically significant diseases, as well as pregnant women, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a reliable tool for better assessing and managing chronic pain in Turkish-speaking patients.

How similar studies have performed: While the CAP questionnaire has been utilized in other contexts, this specific cultural adaptation for Turkish speakers is a novel approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* People with musculoskeletal pain and in diagnoses with OA, back pain, or FM
* Above 18 years of age
* Informed consent of the participant

Exclusion Criteria:

* Diagnosis of uncontrolled/other clinically significant diseases (chronic obstructive pulmonary disease, congestive heart failure, endocrine system diseases, neurological, psychological diseases, etc.)
* Pregnant women

Where this trial is running

Ankara, Altındağ

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions OsteoarthritisBack PainFibromyalgianociplastic paincentral sensitizationback painosteoarthritisfibromyalgia
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.