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MAINRITSys : Rituximab vs placebo for maintenance in systemic sclerosis – interstitial lung disease

Status
Not yet recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-521331-36-00
Enrollment
120
Registered
2026-05-11
Start date
Unknown
Completion date
Unknown
Last updated
2026-05-11

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

Conditions

Patient with stabilized SSc-ILD (as defined by a decline of FVC ≤ 5%) following RTX induction treatment

Brief summary

The absolute rate of changes in FVC from baseline to Month 18 of randomization.

Detailed description

Safety and tolerability profile at 6, 12, and 18 months, Disease-related mortality at 6, 12, and 18 months, Progression-free survival (composite endpoint of mortality, transplant, treatment failure or decline in FVC >10% compared to baseline) at 6, 12, and 18 months, Treatment failure (as determined by need for transplant or rescue therapy at 6, 12, and 18 months, Changes in FVC and diffusing capacity for carbon monoxide (DLCO) at 6, 12, and 18 months, Change in 6-min walk test distance over 6, 12, and 18 months, Changes from baseline to 18 months in HRCT of chest images at 6, 12, and 18 months, Scleroderma-specific endpoints (SSc disease activity revised CRISS, mRSS) at 6, 12, and 18 months, Change from baseline in health-related quality of life scores (St. George’s Respiratory Questionnaire (SGRQ), Short form (36) Health Questionnaire (SF-36), King’s Brief Interstitial Lung Disease (K-BILD), handicap questionnaires HAQ-DI, SHAQ, and patients reported outcomes questionnaires SSPRO and ScleroID) at 6, 12, and 18 months, QALYs (estimated from EQ5D5Lscores) at 6, 12, and 18 months, Hospitalisation for respiratory cause over the duration of the trial, Time to first hospitalisation for respiratory cause,, Time to first acute ILD exacerbation, Time to death

Interventions

DRUGSODIUM CHLORIDE
DRUGTruxima 500 mg concentrate for solution for infusion

Sponsors

Assistance Publique Hopitaux De Paris
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
The absolute rate of changes in FVC from baseline to Month 18 of randomization.

Secondary

MeasureTime frame
Safety and tolerability profile at 6, 12, and 18 months, Disease-related mortality at 6, 12, and 18 months, Progression-free survival (composite endpoint of mortality, transplant, treatment failure or decline in FVC >10% compared to baseline) at 6, 12, and 18 months, Treatment failure (as determined by need for transplant or rescue therapy at 6, 12, and 18 months, Changes in FVC and diffusing capacity for carbon monoxide (DLCO) at 6, 12, and 18 months, Change in 6-min walk test distance over 6, 12, and 18 months, Changes from baseline to 18 months in HRCT of chest images at 6, 12, and 18 months, Scleroderma-specific endpoints (SSc disease activity revised CRISS, mRSS) at 6, 12, and 18 months, Change from baseline in health-related quality of life scores (St. George’s Respiratory Questionnaire (SGRQ), Short form (36) Health Questionnaire (SF-36), King’s Brief Interstitial Lung Disease (K-BILD), handicap questionnaires HAQ-DI, SHAQ, and patients reported outcomes questionnaires SSPRO and

Outcome results

None listed

Source: EU CTIS · Data processed: May 12, 2026