Human cord derived MSC cell(Shanghai Aisar Biotechnology)

To evaluate the safety and tolerability of IxCell hUC-MSC-P in the treatment of patients with connective tissue disease-related interstitial lung disease.
To evaluate the efficacy, pharmacokinetics and immunogenicity of IxCell hUC-MSC-P in the treatment of connective tissue disease-associated interstitial lung disease (CTD-ILD).