Mesenchymal stromal cells to treat patients with non-ischaemic heart failure: Results from SCIENCE II pilot study.

Several human studies show positive signals, while research methods and sample sizes continue to develop.

• 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)

Allogeneic stem cell therapy is more logistically suitable compared with autologous cell therapy for large-scale patient treatment. We aim to investigate the clinical safety and efficacy profile of the allogeneic adipose tissue derived mesenchymal stromal cell product (CSCC_ASC) as an add-on therapy in patients with chronic non-ischaemic heart failure with reduced left ventricular ejection fraction (HFrEF) < 40%. This is a single-centre investigator-initiated randomized phase I/II study with direct intra-myocardial injections of 100 million allogeneic CSCC_ASC. A total of 30 HFrEF patients with New York Heart Association (NYHA) class ≥II despite optimal anticongestive heart failure medication and plasma NT-proBNP > 300 pg/mL (>35 pmol/L) were included and randomized 2:1 to CSCC_ASC or standard care. The primary endpoint left ventricular end systolic volume (LVESV) and other echo related parameters were analysed by an investigator blinded for treatment allocation. No difference in serious adverse events was observed between groups. LVESV decreased significantly from baseline to 6 months follow-up in the ASC group (153.7 ± 53.2 mL and 128.7 ± 45.6 mL, P < 0.001) and remained unchanged in the standard care group (180.4 ± 39.4 mL and 186.7 ± 48.9 mL, P = 0.652). There was a significant difference between the groups in LVESV change (31.3 ± 11.0 mL, P = 0.009). The difference from ba

Evidence level

Several human studies show positive signals, while research methods and sample sizes continue to develop.

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