There is one clinical trial.
Combination of Recombinant Bacterial ACE2 Receptors -Like Enzyme of B38-CAP and Isotretinoin Could be Promising COVID-19 Infection- and Lung Injury Preventing Drug Better Than Recombinant Human ACE2 Mahmoud ELkazzaz1 1Department of chemistry and biochemistry, Faculty of Science, Damietta University, GOEIC, Egypt. _____________________________________________________________________________________________ ________________________________________________________________________ B38-CAP is a bacteria-derived ACE2-like enzyme that suppresses hypertension and cardiac dysfunction Angiotensin-converting enzyme 2 (ACE2) is critically involved in cardiovascular physiology and pathology, and is currently clinically evaluated to treat acute lung failure. Here we show that the B38-CAP, a carboxypeptidase derived from Paenibacillus sp. B38, is an ACE2-like enzyme to decrease angiotensin II levels in mice. In protein 3D structure analysis, B38-CAP homolog shares structural similarity to mammalian ACE2 with low sequence identity. A study demonstrated that the bacterial B38-CAP as an ACE2-like carboxypeptidase, indicating that evolution has shaped a bacterial carboxypeptidase to a human ACE2-like enzyme. Bacterial engineering could be utilized to design improved protein drugs for hypertension and heart failure. pretreatment of B38-CAP markedly down regulated a massive increase of plasma Ang II levels at 5 min after Ang II injection In addition to the currently used drugs to inhibit Ang II generation or signaling, such as ACE inhibitors or Angiotensin receptor blockers, direct down-modulation of Ang II levels by rhACE2 protein is one of the promising candidates for new therapeutic strategy in cardiovascular disease and other Ang II-related diseases, e.g. ARDS. On the other hand, although mass production of rhACE2 as a protein drug costs due to requirement of mammalian cell expression systems, B38-CAP is easily prepared with E. coli expression system and is cost effective. Therapeutic efficacy and less toxicity in mouse heart failure models would warrant further investigation of B38-CAP or other microbial carboxypeptidases in disease models. Finally the principal investigator expects that treatment with ACE2-like enzyme of bacteria B38-CAP expected to work efficiently Like human ACE2 and it will save the lung cells from COVID - 19 inhibitory effect and down regulation of ACE2 because COVID-19 binds to human ACE2 and down regulates it and this receptors is very important for lung cells survival and function So ,the principal investigator also expects that B38-CAP ACE2 like enzyme may be not recognized by COVID -19 spike protein because evolutionary it is too far away from human ace2 and human ACE2 is a real receptor of COVID -19 not ACE2 like enzyme but in the same time it will make the same function of human ACE2 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 . So, the principal investigator expects strong inhibition of COVID - 19 infection And rescuing the lung cells from its serious attack by treating with ACE2 like enzyme and Isotretinoin Keywords: COVID 2019 , Isotretinoin,B38-CAP , Bacterial ACE2 receptors -like enzyme , rhACE226.
Description: Compare the time course of body temperature (fever) between two groups over time.Measure: Time course of body temperature (fever) Time: at 14 days
Description: Compare viral load between two groups over time.Measure: Viral load over time Time: 14 days
Description: PaO2/FiO2 ratioMeasure: P/F ratio over time Time: 14 days
Description: SOFA, including assessment of respiratory, blood, liver, circulatory, nerve, kidney, from 0 to 4 scores in each systems, the higher scores mean a worse outcome.Measure: Sequential organ failure assessment score(SOFA score) over time Time: 14 days
Description: Based on radiologist's assessment of inflammatory exudative disease, category as follows: significant improvement, partial improvement, no improvement, increase of partial exudation, significant increase in exudation, unable to judge.Measure: Image examination of chest over time Time: 14 days
Data processed on September 26, 2020.
An HTML report was created for each of the unique drugs, MeSH, and HPO terms associated with COVID-19 clinical trials. Each report contains a list of either the drug, the MeSH terms, or the HPO terms. All of the terms in a category are displayed on the left-hand side of the report to enable easy navigation, and the reports contain a list of correlated drugs, MeSH, and HPO terms. Further, all reports contain the details of the clinical trials in which the term is referenced. Every clinical trial report shows the mapped HPO and MeSH terms, which are also hyperlinked. Related HPO terms, with their associated genes, protein mutations, and SNPs are also referenced in the report.Drug Reports MeSH Reports HPO Reports