This study evaluates the safety and therapeutic effects of single-dose human umbilical cord blood mesenchymal stem cells (UC-MSCs) on the adult patients with moderate/severe Rheumatoid Arthritis accompany with anemia or/and Interstitial pulmonary disease. Half of participants will receive UC-MSCs and keep the present medication,while the other half will receive a placebo and keep the present medication.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
250
The UC-MSCs will be administrated by intravenous injection at the dose of 1×10\^6 cells/kg.
Xijing Hospital
Xi'an, Shaanxi, China
RECRUITINGImprovement rate of blood routine hemoglobin (HGB) compared to baseline.
The HGB increases by 10g compared to the baseline is considered improvement.
Time frame: 24 weeks
Improvement rate of forced vital capacity (FVC) and/or carbon monoxide diffusing capacity (DLCO) compared to baseline.
FVC increases by 0.5% and DLCO increases by 10% compared to baseline are considered improvement.
Time frame: 24 weeks
The remission rates of American College of Rheumatology (ACR) 20, ACR 50 and ACR 70.
The patients achieves 20%, 50%, or 70% remission according to American College of Rheumatology (ACR) criteria.
Time frame: 12 weeks and 24 weeks
White blood cell count and platelet count improved compared to the baseline.
White blood cell count increases to the 3.5×10\^9/L and platelet count increases to 80×10\^ 9.
Time frame: 12 weeks and 24 weeks
Improvement rate of blood routine hemoglobin (HGB) compared to baseline.
The HGB increases by 10 g compared to the baseline is considered improvement.
Time frame: 12 weeks
Improvement rate of forced vital capacity (FVC) and/or carbon monoxide
FVC increases by 0.5% and DLCO increases by 10% compared to baseline
Time frame: 12 weeks
Image improvement of lung on high resolution CT.
The area change of image of lung.
Time frame: 24 weeks
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Improvement of 6-minute walking distance compared to baseline.
Time frame: 12 weeks and 24 weeks