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Efficacy and safety of the anti-TNF multivalent NANOBODY compound ozoralizumab in RA patients with high titers of rheumatoid factor (OHZORA High study)

Efficacy and safety of the anti-TNF multivalent NANOBODY compound ozoralizumab in RA patients with high titers of rheumatoid factor (OHZORA High study) - OHZORA High study

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs051240053
Enrollment
45
Registered
2024-06-07
Start date
2024-08-22
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

Group 1: Patients with rheumatoid arthritis and rheumatoid factor (RF) less than 15 IU/mL at enrollment receive 30 mg ozoralizumab every 4 weeks Group 2: Patients with rheumatoid arthritis and RF grea

Sponsors

Hashimoto Motomu
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: The study will enroll those who meet all of the following inclusion criteria (1) Patients who have given informed consent to participate in this study 2) Japanese rheumatoid arthritis patients who have been treated with one or more csDMARDs, including MTX, for at least 4 weeks at the time of consent without dose modification or addition of concomitant medications 3) Patients with moderately active disease (DAS28-CRP = or >3.2) during the previous observation period (Visit 0) 4) Patients who are at least 18 years of age at the time of consent 5) Patients who are able to make outpatient visits according to the study schedule

Exclusion criteria

Exclusion criteria: 1) Patients on dialysis 2) Pregnant and lactating patients 3) Patients with severe hepatic impairment (Child-Pugh Classification C) 4) Patients with serious infections or active tuberculosis 5) Patients with either neutropenia (10 mg/day 11) Other patients who are judged by the principal investigator (subinvestigator) to be inappropriate to participate in this study

Design outcomes

Primary

MeasureTime frame
DAS28-CRP at 12 weeks (Visit 4)

Secondary

MeasureTime frame
(1) RF titer, changes in RF titer, anti-CCP antibody titer, changes in anti-CCP antibody titer (2) HAQ, Patients' global VAS, Patients' pain VAS, Physicians' global VAS, changes in HAQ, changes in Patients' global VAS, changes in Patients' pain VAS, changes in Physicians' global VAS (3) CDAI, SDAI, DAS28-ESR, DAS28-CRP (except Visit 4), changes in CDAI, changes in SDAI, changes in DAS28-ESR, changes in DAS28-CRP

Contacts

Public ContactRyu Watanabe

Osaka Metropolitan University Hospital

doctorwatanaberyu7@gmail.com+81-6-6645-3891

Outcome results

None listed

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