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RA morning stiffness study

Active Thermo-Therapy for Arthritis with stiffness Caused by Rheumatoid Arthritis - ATTACA study

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs052210155
Enrollment
20
Registered
2022-01-17
Start date
2022-02-17
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

Rheumatoid Arthritis Rheumatoid arthritis, morning stiffness

Interventions

For a defined period of 2 weeks, participants are requested to wear the holders whith the specific disposable warmers inside on their bilateral wrists during sleeping (warmer adapted on dorsal side of

Sponsors

Shima Yoshihito
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients over 20 years old and under 90 years old when the consent is obtained. 2.Patients who were diagnosed with rheumatoid arthritis (RA) by the 2010 EULAR-ACR classification criteria for rheumatoid arthritis. 3.Patients who usually have Morning Stiffness (MS) on their hands for 15 minutes or longer. 4.Patients who have not changed or started the treatment for RA within 4 weeks prior to the consent. 5.Patients who give written informed consent. 6.Patients currently attending the department of clinical immunology, Osaka University Hospital.

Exclusion criteria

Exclusion criteria: 1.Patients who have any skin disease at the site of wearing the warmer. 2.Patiens under chronic febrile disease including infectious disease. 3.Patients who have diabetes mellitus. 4.Patients who have peripheral neuropathy of upper extremities. 5.Patients who are incapable of wearing or taking off the warmer by themselves. 6.Patients who have vascular shunt on the arm for hemodialysis. 7.Other Patients who are judged as ineligible by the responsible researcher.

Design outcomes

Primary

MeasureTime frame
Differences between the Morning Stiffness score (MS score) in the period of wearing the tested device and in the period of not wearing. MS score is defined the 0-10 numerical scale for the intensity of morning stiffness on his/her hands assessed by a participant himself/herself and recorded in the diary. Difference of MS score is defined as difference between "average of MS score in the period of wearing the device" and "average of RCSs in the period of not wearing the device".

Secondary

MeasureTime frame
1.Differences between morning stiffness duration in the period of wearing the tested device and in the period of not wearing. 2.Differences between gripping strength on waking in the period of wearing the tested device and in the period of not wearing. 3.Disease activity of rheumatoid arthritis (DAS28-CRP and CDAI) 4.Findings of muscle-skeltal ultrasonography on finger and wrist joints. 5.Correlation between weather and morning stiffness. 6.Safety assessment of the tested device ( frequency and severity of burns associated with the warmers).

Contacts

Public ContactAkane Watanabe

Osaka University Hospital

a.watanabe@imed3.med.osaka-u.ac.jp+81-6-6105-5710

Outcome results

None listed

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