Systemic sclerosis & Raynaud's

Obinutuzumab in systemic sclerosis: a multicentre retrospective case series

Rheumatology (Oxford)Published multicentre retrospective case series

Authors' conclusion

OBZ may represent a valuable therapeutic option in SSc, particularly in patients with RTX intolerance or inadequate response. Meaningful clinical benefit was observed even in advanced, non-inflammatory phenotypes; whether deeper, tissue-level B-cell depletion contributes to this benefit remains a hypothesis to be investigated prospectively.

Study context

Population
Multi-refractory patients with systemic sclerosis (SSc) previously treated by Rituximab (RTX), treated with obinutuzumab (OBZ)patients with SSc treated with OBZ
Participants
5 patients
Outcome
Tolerability
Follow-up
Median 12 months
Methodological detailsreal-life
  • Real-life

Main finding

As reported in the abstract

  • OBZ was well tolerated, without allergic cross-reaction or serious adverse events

Observational data: associations, not effects.

Further findings

Complete peripheral CD19+ B-cell depletion

Achieved in all patients

Gamma-globulin levels, median

g/L

Before
11.7
After
8.8

Skin fibrosis, median mRSS

Before
27 (range 4-31)
After
8 (range 0-23)

Articular remission

Achieved in all assessable patients

Lung parenchymal disease in SSc-interstitial lung disease patients

Remained stable on functional assessment and imaging across 3 SSc-interstitial lung disease patients

Corticosteroid dose, median per day

mg

Before
10 (range 0-20)
After
5 (range 0-10)
  • Reduced or stabilised in all patients

Prior immunosuppressive therapies

Median number of prior therapies
five
RTX stopped because of allergic reactions
4/5

Original publication

Obinutuzumab in systemic sclerosis: a multicentre retrospective case series. Rheumatology (Oxford). Published 4 November 2026. doi:10.1093/rheumatology/keag617

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