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Efficacy and safety of repeated Rituximab infusions in patients with Active Systemic SClerosis and background medication, a one year randomized blinded placebo-controlled trial, the RASSc study.

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-520483-17-01
Enrollment
105
Registered
2025-05-22
Start date
2025-09-02
Completion date
Unknown
Last updated
2025-11-25

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

Conditions

Systemic sclerosis

Brief summary

The primary outcome will be between group differences of disease progression after 12 months follow-up. Disease progression is defined as a dichotomized composite outcome measure representing a clinical relevant worsening in skin and/or lung involvement, defined as: A) Increase in modified Rodnan Skin Score of 3 points and/or 15%, and/or B) Decrease ≥ 10% in FVC, or a decrease in FVC ≥ 5%-< 10% and a decline in DLCO ≥ 15%, and/or new ILD on HRCT-scan.

Detailed description

Secondary outcomes will be assessed during follow-up, after 12 and 18 months. Secondary outcomes include between group differences in other organ involvement, the derived composite outcome CRISS if applicable, changes in nailfold capillaroscopic findings, change in functionality, quality of life, patient satisfaction, mortality, safety and cost-effectiveness with an economic evaluation.

Interventions

DRUGSodium Chloride Fresenius Kabi Italia 0
DRUG9 % Solution for infusion
DRUGMabThera 500 mg concentrate for solution for infusion

Sponsors

Radboud universitair medisch centrum Stichting
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
The primary outcome will be between group differences of disease progression after 12 months follow-up. Disease progression is defined as a dichotomized composite outcome measure representing a clinical relevant worsening in skin and/or lung involvement, defined as: A) Increase in modified Rodnan Skin Score of 3 points and/or 15%, and/or B) Decrease ≥ 10% in FVC, or a decrease in FVC ≥ 5%-< 10% and a decline in DLCO ≥ 15%, and/or new ILD on HRCT-scan.

Secondary

MeasureTime frame
Secondary outcomes will be assessed during follow-up, after 12 and 18 months. Secondary outcomes include between group differences in other organ involvement, the derived composite outcome CRISS if applicable, changes in nailfold capillaroscopic findings, change in functionality, quality of life, patient satisfaction, mortality, safety and cost-effectiveness with an economic evaluation.

Countries

Netherlands

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026