COVID-19 Clinical Trials and Expanded Access

Severe acute respiratory syndrome (SARS-CoV2) due to novel Coronavirus (2019-nCoV) related infection (COVID-19) is characterized by severe ventilation perfusion mismatch leading to refractory hypoxemia. To date, there is no specific treatment available for 2019-nCoV. Nitric oxide is a selective pulmonary vasodilator gas used in as a rescue therapy in refractory hypoxemia due to acute respiratory distress syndrome (ARDS). In-vitro and clinical evidence indicate that inhaled nitric oxide gas (iNO) has also antiviral activity against other strains of coronavirus. The primary aim of this study is to determine whether inhaled NO improves oxygenation in patients with hypoxic SARS-CoV2. This is a multicenter single-blinded randomized controlled trial with 1:1 individual allocation

The investigators plan to conduct a cross-sectional survey to examine how social media use during COVID-19 relates to: (1) information management, (2) assessment of the situation, and (3) affect.

In December 2019, an unknown pneumonia rapidly spread in Wuhan, China, a new coronavirus, 2019 novel coronavirus (2019-nCoV), aroused the attention of the entire world. On January 31, 2020, World Health Organization (WHO) announced the outbreak of Coronavirus Disease 2019 (COVID-19) in China as a Public Health Emergency of International Concern. The number of volunteer non-remunerated blood donors decreased because of quarantine, caring for relatives, and fear of exposure to COVID-19. Due to the blood shortage, patient blood management and cessation of elective surgery are contributing to decreased demand, but sepsis may increase requirements and significant reductions will not be possible in areas such as trauma, cancer patients, hereditary haemolytic anaemias and childbirth. Therefore, recruiting enough blood donors during the epidemic is vital for public health in China, and also worldwide. In order to assess the effects of a questionnaire on blood donor recruitment, the investigators designed two kinds of self-administered, standardized and structured questionnaires. In addition of the basic socio-demographic characteristics, one questionnaire includes the information of precautions of blood donation during epidemic, and the other dose not. The questionnaires were randomly sent to ever blood donors, and the same number of ever blood donors are coded as control.

Observe the efficacy and safety of G1(Sildenafil citrate tablets) in patients with COVID-19 under clinical actual diagnosis and treatment conditions

This study is a research project to evaluate the efficacy of hydroxychloroquine for post-exposure prophylaxis and early treatment of Covid-19. The intervention entails administering prophylactic hydroxychloroquine to all contacts (Study 1) and treating non severe confirmed cases with hydroxychloroquine (Study 2).

Evaluation of novel coronavirus induced severe pneumonia by dental pulp mesenchymal stem cells

Background: Direct exposure to public health emergencies is associated with increased mental disorders. It is less clear about the prevalence of common mental disorders and its correlates in Chinese adolescents after experiencing public health emergencies. Objective: This longitudinal study aims to estimate the prevalence of common mental disorders (i.e. depression, anxiety, and post-traumatic stress disorder) and its correlates in a sample of Chinese adolescents after experience a public health emergency, namely the novel coronavirus disease 2019 (COVID-19). Method: This study intends to recruit 3,428 Chinese adolescent students from high and middle schools in the baseline survey. This study will track these recruited participants every 6 months via three-wave follow-up (i.e. 6-month, 12-month, and 18-month follow-ups). The demographics (e.g. age, gender, education, family background, and residence) and psychosocial factors (i.e. exposure to traumatic events, religious belief, social media exposure, loneliness, and perceived social support) associated with common mental disorders (i.e. depression, anxiety, and post-traumatic stress disorder) will be investigated in this sample population. Furthermore, a hardcopy self-report questionnaire will be disturbed to all participants. Additionally, the cross-sectional analyses will be first conducted to estimate the prevalence of mental disorders and their correlates in data of baseline survey. After obtaining the longitudinal data, the relative risk, incident rate ratios, latent class analysis, and structural equation model may be performed in this study. Missing data will be solved by the multiple imputations. Data analysis tools included the Stata 16.0 and Mplus 8.4. Discussion: This longitudinal study will better help to understand the prevalence changes of mental disorders among Chinese adolescents following the COVID-19. These findings have the potential to provide empirical evidence about the burden of mental disease and key drivers of Chinese adolescents following the COVID-19, which can benefit the formation of public policy and mental health intervention programming. This study will close the gaps that a lack of epidemiological studies about the mental disorder prevalence and related risk factors.

Currently, the growing epidemic of a new coronavirus infectious disease (Covid-19) is wreaking havoc worldwide, which is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). SARS-CoV-2 is a RNA virus that display high similarity in both genomic and proteomic profiling with SARS-CoV that first emerged in humans in 2003 in China. Therefore, preventing and controlling the pandemic occurrences are extremely urgent as a global top priority. Due to the lack of effective antiviral drugs, patients may be treated by only addressing their symptoms such as reducing fever. Clinical autopsies from SARS-CoV-infected patients demonstrated that there were major pathological changes in the lungs, immune organs, and small systemic blood vessels with vasculitis. However, the detection of SARS-CoV were primarily found in the lung and trachea/bronchus, but was undetectable in spleen, lymph nodes, bone marrow, heart and aorta, highlighting the overreaction of immune responses induced by viral infection were really harmful, resulting in the pathogenesis of lungs, immune organs, and small systemic blood vessels. To this respect, immune modulation strategy may be potentially beneficial to enhance anti-viral immunity and efficiently reduce the viral load, improve clinical outcomes, expedite the patient recovery, and decline the rate of mortality in patients after being infected with SARS-CoV-2. Tianhe Stem Cell Biotechnologies Inc. has developed a novel globally-patented Stem Cell Educator (SCE) technology designed to reverse the autoimmune response in Type 1 diabetes (T1D), Alopecia Areata (AA) and other autoimmune diseases. SCE therapy uses human multipotent cord blood stem cells (CB-SC) from human cord blood. Their properties distinguish CB-SC from other known stem cell types, including mesenchymal stem cells (MSC) and hematopoietic stem cells (HSC). Several clinical studies show that SCE therapy functions via CB-SC induction of immune tolerance in autoimmune T cells and restore immune balance and homeostasis in patients with T1D, AA and other inflammation-associated diseases. To correct the overreaction of overreaction of immune responses, the investigators plan to treat SARS-CoV-2 patients with Stem Cell Educator therapy.

This is a Phase IIb study consisting of two cohorts to evaluate efficacy, safety and pharmacokinetics of DAS181 in IFV infection. An approximate total of 280 subjects will be enrolled into this study.

A randomized controlled trial in which health care workers will be randomized to either medical masks or N95 respirators when providing care to patients with COVID-19.