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Inhibitory Effect of Abatacept against Joint Inflammation Shown by Ultrasound Power Doppler Scoring in Japanese Bio-Naive Patients with Rheumatoid Arthritis

Inhibitory Effect of Abatacept against Joint Inflammation Shown by Ultrasound Power Doppler Scoring in Japanese Bio-Naive Patients with Rheumatoid Arthritis - SAKURA STUDY

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000042934
Enrollment
100
Registered
2021-01-07
Start date
2019-01-23
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

Interventions

None listed

Sponsors

Hirosaki University Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Patients between 20 and 75 years of age who have been diagnosed with rheumatoid arthritis, according to the 2010 ACR/EULAR classification criteria. 2.Patients have no effects or not enough effects from one csDMARDs or more and who bDMARDs-naiive (DAS 28>3.2 or SDAI>11 or CDAI>10 at registration). 3.Patients were started Abatacept dose by a decision from physicians. 4.Patients who provide written consent form to participate in this study after full explanation of the study.

Exclusion criteria

Exclusion criteria: 1.Patients who are suffering from severe infectious disease. 2.Patients with lymphocytes less than 500/microL and high levels of beta-D glucan 3.Patients who are infected EB virus or HBV 4.Patients who are unsuitable to participate in this study by attending physicians.

Design outcomes

Primary

MeasureTime frame
-Improvement rate of PDUS score in Abatacept dose 8 weeks later

Secondary

MeasureTime frame
-Improvement rate of PDUS score in Abatacept dose 24 and 48 weeks later -Relevance between the improvement rate of pain score and PDUS score in Abatacept dose 0, 2, 4, 8, 24, 48 weeks later -Transition of disease activity in Abatacept dose 0, 2, 4, 8, 24, 48 weeks later -Relevance between ACPA, RF, Cytokine expression levels and improvement rate of PDUS score, pain score, disease activity

Countries

Japan

Contacts

Public ContactHirotake Sakuraba

Hirosaki University Graduate School of Medicine Department of Gastroenterology and Hematology

hirotake@hirosaki-u.ac.jp0172-39-5053

Outcome results

None listed

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