Phase I/IIa Clinical Trial of Human Umbilical Cord Mesenchymal Stem Cell Injection in the Treatment of Idiopathic Pulmonary Fibrosis (IPF)

Different doses of human umbilical cord mesenchymal stem cell injection were infused to the focus of patients with idiopathic pulmonary fibrosis through bronchoscope, and the tolerance of subjects to different doses of human umbilical cord mesenchymal stem cell injection was observed, and the curative effect was preliminarily observed.