Skip to content

Understanding Pain Perception in Osteoarthritis

Understanding Pain Perception in Osteoarthritis: a Mechanistic Study in People With Knee Osteoarthritis

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02603939
Acronym
PAPO
Enrollment
250
Registered
2015-11-13
Start date
2013-06-30
Completion date
2022-12-31
Last updated
2020-10-26

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

Conditions

Osteoarthritis, Pain

Keywords

Pain, Magnetic resonance imaging

Brief summary

Osteoarthritis (OA)is a painful and disabling disease, predicted to be the fourth largest cause of disability worldwide by 2020. It commonly affects the hip or knee ultimately resulting in total joint replacement. In order to assess disease progression and plan surgery, x-rays are taken as part of routine practice. However x-rays provide limited information about formation of substructures and changes occurring during progression of disease. The proposed study aims to invite patients with OA of the hip or knee to participate in detailed examinations of their pain and their painful joint through interviews, blood and urine samples taken, MRI magnetic resonance imaging)and donating their waste tissue after joint surgery (all of old joint). Informed patient consent will be sought in all cases.

Detailed description

The patient will be asked for permission for a clinician to access their notes for information relevant to the research, including full medical history, their sex and date of birth. Tissue obtained from joint replacement surgery at St. George's Hospital and transferred to St.George's, University of London where it will be prepared for various experiments including looking at the genes and proteins in people with osteoarthritis. The blood and urine samples will also be taken to St. George's, University of London, and prepared for studies on the genes and proteins in people with osteoarthritis. All samples provided will be anonymised with no patient details on the samples and stored in locked freezers, in locked labs. at St.George's, University of London.

Interventions

We are assessing pain responses in participants with osteoarthritis before an after joint replacement surgery

Sponsors

St George's, University of London
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
35 Years to 90 Years
Healthy volunteers
Yes

Inclusion criteria

Inclusion Criteria for OA patients: Study participant will be recruited from rheumatology outpatient clinics and primary care: 1. fulfilling the American College of Rheumatology (ACR) criteria for the diagnosis of knee osteoarthritis 2. male or female, 3. symptomatic knee pain 4. on usual care for knee osteoarthritis including paracetamol and/or non-steroidal anti-inflammatory drugs 5. participants between 35 and 90 who will be undergoing knee replacement surgery or arthroscopy for osteoarthritis or knee surgery for fractured tibia/femur/fibula with osteoarthritis Inclusion criteria for Early OA Patients Study participant will be recruited from rheumatology outpatient clinics and primary care: 1. fulfilling the American College of Rheumatology (ACR) criteria for the diagnosis of knee osteoarthritis 2. male or female, 3. symptomatic knee pain 4. on usual care for knee osteoarthritis including paracetamol and/or non-steroidal anti-inflammatory drugs 5. Participants between 35 and 90 who have osteoarthritis but will not be undergoing knee surgery Inclusion criteria for Healthy control subjects 1\. Participants aged between 35 and 90 who do not have knee pain or osteoarthritis as a comparator group

Design outcomes

Primary

MeasureTime frameDescription
Pain outcomes measured by Western Ontario and McMaster Universities Index (WOMAC)1 Year after joint replacementWestern Ontario and McMaster Universities Index (WOMAC)

Secondary

MeasureTime frameDescription
Magnetic Resonance Imaging Knee Osteoarthritis ScorePre-operativelyLevel of tissue damage quantified by MOAKS scoring at baseline before joint surgery

Countries

United Kingdom

Contacts

Primary ContactAbiola Harrison, BSc
oharriso@sgul.ac.uk020 8266 6474

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026