A Pilot Clinical Study on Inhalation of Mesenchymal Stem Cells Exosomes Treating Severe Novel Coronavirus Pneumonia
Coronavirus
About this trial
This is an interventional treatment trial for Coronavirus focused on measuring mesenchymal stem cells, exosome, nebulization, SARS-CoV-2, novel coronavirus pneumonia
Eligibility Criteria
Inclusion Criteria:
1.Willingness of study participant to accept this treatment arm, and signed informed consent; 2.Male or female, aged at 18 years (including) to 75 years old; 3.Patients with confirmed novel coronavirus pneumonia; 4.Confirmation of SARS-CoV-2 infection by reverse-transcription polymerase chain reaction (RT-PCR) from respiratory tract or blood specimens; 5.Diagnostic criteria of "Severe" or " Critical":
Severe, comply with any of the following:
- Respiratory distress, Respiratory rate (RR) ≥ 30 times/min
- Pulse oxygen saturation (SpO2) at rest ≤ 93%
- Partial pressure of oxygen/fraction of inspired oxygen (PaO2/FiO2) ≤ 300mmHg
Critical, comply with any of the following:
- Respiratory failure, and requirement for mechanical ventilation
- Shock
- Other organ failure and requirement for ICU monitoring
Exclusion Criteria:
- Allergic or hypersensitive to any of the ingredients;
- Pneumonia caused by bacteria, mycoplasma, chlamydia, legionella, fungi or other viruses;
- Obstructive HABP/VABP induced by lung cancer or other known causes;
- Carcinoid syndrome;
- History of long-term use of immunosuppressive agents;
- History of epilepsy and requirement for continuous anticonvulsant treatment or anticonvulsant treatment received within the last 3 years;
- History of severe chronic respiratory disease and requirement for long-term oxygen therapy;
- Undergoing hemodialysis or peritoneal dialysis;
- Estimated or actual rate of creatinine clearance < 15 ml/min;
- History of moderate and severe liver disease (Child-Pugh score >12);
Expectation of receiving any of following medications during the study:
- Receiving continuous valproic acid or sodium valproate within the first 2 weeks prior to screening
- Receiving 5-transtryptamine reuptake inhibitors, tricyclic antidepressants, 5-HT1 receptor agonists or monoamine oxidase inhibitors within the first 2 weeks prior to screening
- Incapable of understanding study protocol;
- History of deep venous thrombosis or pulmonary embolism within the last 3 years;
- Undergoing ECMO or high-frequency oscillatory ventilation support;
- HIV, hepatitis virus, or syphilis infection;
- Period of pregnancy or lactation, or planned pregnancy within 6 months;
- Any condition of unsuitable for the study determined by investigators.
Sites / Locations
- Ruijin Hospital Shanghai Jiao Tong University School of Medicine
Arms of the Study
Arm 1
Experimental
MSCs-derived Exosomes Treatment Group
Conventional treatment and aerosol inhalation of MSCs-derived exosomes treatment participants will receive conventional treatment and 5 times aerosol inhalation of MSCs-derived exosomes (2.0*10E8 nano vesicles/3 ml at Day 1, Day 2, Day 3, Day 4, Day 5).