Comparative Efficacy of Autologous Hematopoietic and Mesenchymal Stem Cell Transplantation in Patients with Systemic Sclerosis: A Systematic Review

Relatively higher-quality human studies compared with other topics in this database, e.g. multiple RCTs or systematic reviews. This does not mean it is standard or approved care.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Background/Objectives : Systemic sclerosis (SSc) is a rare and severe autoimmune disease with limited treatment options. Autologous hematopoietic stem cell transplantation (HSCT) and mesenchymal stem cell transplantation (MSCT) have emerged as promising therapeutic strategies, especially for patients with refractory or rapidly progressive forms of the disease. However, no comparative synthesis has yet evaluated the clinical outcomes, safety, and applicability of these two distinct stem-cell-based interventions. This systematic review aimed to perform a comparative qualitative synthesis of clinical outcomes, safety profiles, and evidence quality for HSCT and MSCT in patients with systemic sclerosis, focusing on survival, skin fibrosis, pulmonary function, and adverse events. Methods : A comprehensive search was conducted in PubMed, ScienceDirect, Cochrane Library, and Google Scholar for the period between 2015 and May 2025. Studies were included if they reported on adult patients with a confirmed diagnosis of SSc treated with either autologous HSCT or MSCT and provided clinical outcome data. Risk of bias was assessed using the Newcastle-Ottawa Scale. Due to heterogeneity across studies, results were synthesized qualitatively. Results : Eleven studies met the inclusion criteria, comprising 504 patients (316 HSCT, 188 MSCT). HSCT showed consistent improvement in survival (1-, 5-,

Evidence level

Relatively higher-quality human studies compared with other topics in this database, e.g. multiple RCTs or systematic reviews. This does not mean it is standard or approved care.

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