Active clinical trials for "Severe Acute Respiratory Syndrome"

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.

Remdesivir is a monophosphoramidate prodrug of an adenosine analogue and it has a broad-spectrum antiviral activity against paramyxoviruses, falviviruses and coronaviruses. It showed in vitro activity on human airway epithelial cells against SARS-CoV-2. It is an investigational drug and granted an Emergency Use Authorization by Food and Drug Administration FDA, so it is under clinical trial. The potent mechanism of action of this drug is still unclear but it effects through several processes. It can interfere with nsp12 polymerase even when exoribonuclease proofreading is intact. It can also produce nucleoside triphosphate NTP that acts pharmacologically active alternate substrate of RNA-chain terminator, as a result NTP can constrain active triphosphates into viral RNA of coronaviruses. There is evidence of high genetic barrier to develop resistance against Remdesivir in coronavirus as a result of which is maintains its effectiveness in antiviral therapies against these viruses. Effectiveness of Remdesivir has been reported against different groups of coronaviruses including Alphacoronavirus NL63 and several SARS/MERS-CoV coronaviruses.

Passive immunization involves the administration of antibodies against a given agent to a susceptible individual for the purpose of preventing or treating an infectious disease due to that agent. A general principle of passive antibody therapy is that it is more effective when used for prophylaxis than for treatment of disease. When used for therapy, antibody is most effective when administered shortly after the onset of symptoms

The pandemic caused by SARS-CoV-2 is a global emergency present in 6 continents including 66 countries, incurring a shortage of effective and safe therapeutic alternatives that can contribute to reducing the risk of contamination, as well as helping to reduce the viral load of the positive patient. This requires a coordinated, effective and immediate action on the part of governments, companies, academic entities and even at the individual level. In the search for new therapeutic and prevention alternatives, the application of hypochlorous acid (HClO) to the nasal mucosa is proposed, a broad-spectrum and fast-acting antimicrobial solution, whose safety has been proven in preclinical trials. The efficacy of HClO has been tested against enveloped and non-enveloped viruses, reducing virus particles without affecting human cells. This solution could contribute to reducing the viral load and the risk of contamination of patients and professionals. This could have an impact on controlling the COVID-19 pandemic.

To evaluate the safety and efficacy of the use of inhalational heparin in patients with pulmonary compromise / pneumonia / SARS associated with COVID-19, laboratory with marked inflammation parameters, and prothrombotic state secondary to it (Fibrinogen, Ferritin and / or elevated D-Dimer) , from admission to hospitalization. The combination of inhalation heparin combined with prophylactic doses of LMWH could reduce the progression to severe forms of the disease, and consequently the need for intensive care units and mechanical ventilation.

The clinical study is designed to evaluate the safety, tolerability and pharmacokinetics of inhaled nanoparticle nanoparticle formulation of Remdesivir (GS-5734) alone and in combination with NA-831 in 48 healthy volunteers.

Combination Therapy with Isotretinoin and Tamoxifen expected to provide Complete Protection against Severe Acute Respiratory Syndrome Coronavirus Abstract: The COVID-19 pandemic caused by SARS-COV-2 has infected over 2,000,000 people causing over 150,000 deaths.Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 and for which there are currently no approved treatments.The principal investigator reported according to previous research data that combination therapy with Isotretinoin and tamoxifen expected to provide Complete Protection against Severe Acute Respiratory Syndrome Coronavirus, ACE2-expressing cells can act as home cells and are prone to SARS-CoV-2 infection as ACE2 receptor facilitates cellular viral entry and replication. A study demonestrated that patients with hypertension and diabetes mellitus may be at higher risk of SARS-CoV-2 infection, as these patients are often treated with ACE inhibitors (ACEIs) or angiotensin II type-I receptor blockers (ARBs), which have been previously suggested to increase ACE2 expression, In another study by Sinha et al who analyzed a publicly available Connectivity Map (CMAP) dataset of pre/post transcriptomic profiles for drug treatment in cell lines for over 20,000 small molecules, isotretinoin was the strongest down-regulator of ACE 2 receptors. On the other hand, they found 6 drugs in CMAP that are currently being investigated in clinical trials for treating COVID-19 (chloroquine, thalidomide, methylprednisolone, losartan, lopinavir and ritonavir, from clinicaltrials.gov), none of which was found to significantly alter ACE2 expression (P>0.1) Moreover, another study demonstrated that isotretinoin is a Potential papain like protease (PLpro) inhibitors which is a protein encoded by SARS-CoV-2 genes and considered one of the proteins that should be targeted in COVID-19 treatment by performing target-based virtual ligand screening. As Investigators discussed before in their previous clinical trial (NCT04353180) that Isotretinoin is the strongest down-regulator of ACE2. and the principal investigator expects that Isotretinoin can inhibit or downrgulat ACE2 by direct interaction and binding with the transmembrane ACE2, Suggesting its therapeutic potential in preventing the entry of COVID 2019 to the host cell. The second combined drug is tamoxifen, A study demonstrated that tamoxifen causes redistribution of weak base chemotherapeutics from acidic organelles to the nucleus in drug-resistant cells. Agents that disrupt organelle acidification (e.g., monensin, bafilomycin A1) cause a similar redistribution. Measurement of cellular pH in several cell lines reveals that tamoxifen inhibits acidification of endosomes and lysosomes without affecting cytoplasmic pH, Tamoxifen decreased the rate of vesicular transport though the recycling and secretory pathways. Organellar acidification is required for many cellular functions, and its disruption could account for many of the side effects of tamoxifen. A sudy demonstrated that the phagocytosis is inhabited by tamoxifen and chloroquine in retinal epithelial cells and Also, a study demonstrated that Tamoxifen have weak base property and increase endolysosomal pH and alter endosomal dynamics. Importantly, TAM treatment enhanced survival of mice injected with a lethal dose of STx1 or STx2, TAM allowed TAM to increase endolysosomal pH and alter endosomal dynamics. A study demonstrated that Tamoxifen have antimalarial effect via treating mice infected with P. berghei, which show lower levels of parasitaemia and do not develop signs of cerebral malaria, Tamoxifen is found to prevent lung fibrosis and reduce serum TGFβ-1 levels. A study Reported that Tamoxifen have endosomal and lysosomal cysteine proteases inhibitory effect better than chloroquine , Cathepsins are endosomal and lysosomal cysteine proteases that play important roles in protein degradation in various cellular processes including both the endocytic pathway and autophagy. The role of cathepsins in viral infection was first identified by Huang et al and they found that one cysteine proteases inhibitor E64d and a specific cathepsin L inhibitor Z-FY(t-Bu)-DMK are able to block the SARS-CoV infection. A study demonestrated that Cathepsin D was more sensitive to tamoxifen than to chloroquine. Tamoxifen exposures decreased the cathepsin D activity at less than 10 pM concentrations. The effect of chloroquine started at concentration of 15 pM, Finally, the principal investigator expects strong inhibition of COVID-19 by this combination therapy. In addition, Tamoxifen has anti estrogenic effect Therefore the principal investigator expects that Tamoxifen will protect patients with cancer against COVID-19 infection. Keywords: COVID 2019 , Isotretinoin , Tamoxofin, ACE2,.Endosomal and Lysosomal pH.

The purpose of this trial is to determine whether Prone Positioning (PP) improves outcomes for non-intubated hospitalized patients with hypoxemic respiratory failure due to COVID-19, who are not candidates for mechanical ventilation in the ICU. The investigators hypothesize that PP will reduce in-hospital mortality or discharge to hospice, compared with usual care for non-intubated patients with do-not-intubate goals of care with hypoxemic respiratory failure due to probable COVID-19.

The goal of this study is to evaluate if CT (Computerized Tomography) can effectively and accurately predict disease progression in patients with SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2). You may be eligible if you have been diagnosed with SARS-CoV-2, are an inpatient at Beaumont Hospital-Royal Oak and meet eligibility criteria. After consent and determination of eligibility, enrolled patients will have a CT scanning session. After the CT scan, patients are followed for 30 days by reviewing their medical records and by phone after discharge from hospital.

The primary objective of this study is to evaluate the humoral immune response to CVnCoV in elderly adults aged ≥65 years and younger adults aged 18-45 years, 14 days after the second dose administration.