Systemic sclerosis & Raynaud's

Treatment of systemic sclerosis–associated pulmonary hypertension with and without interstitial lung disease and its impact on survival: a large cohort study of the German network for systemic sclerosis

Rheumatology (Oxford)Published Registry-based cohort study

Authors' conclusion

SSc patients with ILD and incident PH are often treated with PH combination therapy in Germany. This treatment strategy seems feasible and does not worsen survival in PH patients, provided that ILD is not severe.

Study context

Population
SSc patients with incident PH diagnosed after entry into the DNSS registry (6003 registered patients), with or without interstitial lung disease (ILD)271 with ILD (70.6%)
Participants
384 patients
Exposure
PH monotherapy vs PH combination therapy, stratified by presence of ILD
Outcome
Overall survival
Methodological detailsGerman Network for Systemic Sclerosis (DNSS) registry, Kaplan-Meier analysis, log-rank test
  • German Network for Systemic Sclerosis (DNSS) registry
  • Kaplan-Meier analysis
  • Log-rank test

Main finding

As reported in the abstract

  • Combination therapy vs Monotherapy: P = 0.197
  • Mean follow-up 8.69 ± 4.94 years

Observational data: associations, not effects.

Further findings

OutcomeValues
Minimal FVC during follow-up, patients with ILDILD mean 70.79 (SD 24.36) %

Survival by treatment strategy, with and without ILD (subgroups)

Varying treatment strategies did not significantly impact survival of PH patients, whether or not ILD was present

Distribution of PH therapy categories (mono, dual, triple), with vs without ILD

No significant difference
P = 0.865

Minimal forced vital capacity (FVC) during follow-up, patients with ILD

FVC and DLCO numerically decreased with and without ILD and were significantly lower with ILD

Original publication

Treatment of systemic sclerosis–associated pulmonary hypertension with and without interstitial lung disease and its impact on survival: a large cohort study of the German network for systemic sclerosis. Rheumatology (Oxford). Published 15 April 2026. doi:10.1093/rheumatology/keag155

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