Predictive Utility of a Short-term Improvement in Objectively Measured Physical Activity in Rheumatoid Arthritis (PUSIPA)
PUSIPA
1 other identifier
observational
100
1 country
1
Brief Summary
SUMMARY Background: Several studies have shown physical activity (PA) to be inversely correlated to disease activity in rheumatoid arthritis (RA) patients. However, it is unclear whether improved PA leads to lower disease activity or if low disease activity predicts improved PA in rheumatoid arthritis patients. Furthermore, it is unknown how fibromyalgia (FM) affects this interaction. Objective(s): Our primary objective will be to compare the effect of an immediate improvement in physical activity after one week on the proportion of RA patients achieving low disease activity after 12 weeks of biological treatment. Furthermore, we will explore whether the presence of concomitant FM affects this clinical response (i.e., interaction between FM status and PA response). Design: A prospective cohort study in the form of a target-trial attempting to address a causal question comparing the outcome among the participants with an immediate improvement in physical activity, relative to individuals without. Setting and patients: Biologically naive RA patients initiating biological treatment are consecutively enrolled. PA is quantified by accelerometry one week prior to, one week after, and after 3 months of biological treatment. Sample size: 100 RA patients starting biological therapy is planned enrolled in the study. Measurements: RA patients will be divided into two groups depending on their improvement in physical activity after onset of biological treatment. The percentage of time spent in moderate-to-vigorously physical activity (MVPA) i.e., the percentage of time a patient is in motion \[walking, running, bicycling, or swimming\] is measured prior to, one week, and approximately 3 months after biological treatment onset, respectively. The MVPA ratio (MVPA After biological treatment/MVPA Before biological treatment) will divide patients enabling a contrast between two groups: Those with high improvement considering MVPA (after 1 week; the upper tertile of MVPA ratio of the sample) and those without. Treatment response (achieving a disease activity score \< 3.2) after approximately 3 months from baseline will be analyzed as the contrast between groups.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Sep 2023
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 1, 2023
CompletedFirst Submitted
Initial submission to the registry
February 23, 2024
CompletedFirst Posted
Study publicly available on registry
March 1, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2025
CompletedMarch 17, 2025
March 1, 2025
2 years
February 23, 2024
March 13, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
MVPA ratio before and after biological therapy
Time spent in moderate-to-vigorously physical activity before and after biological therapy. Continous meassure will be performed during 1 week.
at baseline, after 1 week and after 12 weeks from treatment initiation.
Disease activity score (DAS)
DAS score will be uptained at each visit (0-10, where 10 represent maximum disease activity)
at baseline, after 1 week and after 12 weeks from treatment initiation.
Secondary Outcomes (2)
Fibromyalgia
at baseline, after 1 week and after 12 weeks from treatment initiation.
Fatigue
at baseline, after 1 week and after 12 weeks from treatment initiation.
Other Outcomes (1)
Physical activity scores on questionnaire
at baseline, after 1 week and after 12 weeks from treatment initiation.
Eligibility Criteria
Patients with RA (\> 18 years of age) who are to be treated with a biological agent.
You may qualify if:
- Patients with RA (\> 18 years of age)
- Patients who are to be treated with a biological agent
- Patients who can read and understand Danish
You may not qualify if:
- Patients who are physically impaired (patients depending on assistance devices for walking)
- Pregnancy
- Patients who have received corticosteroids two weeks prior to and during the period of the movement measurement
- Patients who by virtue of illiteracy or cognitive impairment, are unable to complete the questionnaire.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Esbjerg Hospital
Esbjerg, 6700, Denmark
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator, MD
Study Record Dates
First Submitted
February 23, 2024
First Posted
March 1, 2024
Study Start
September 1, 2023
Primary Completion
September 1, 2025
Study Completion
September 1, 2025
Last Updated
March 17, 2025
Record last verified: 2025-03
Data Sharing
- IPD Sharing
- Will not share