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Pharmacological development of the potential adjuvant therapeutic agents against coronavirus disease 2019.

ABSTRACT: As the coronavirus disease 2019 (COVID-19, also called severe acute respiratory syndrome coronavirus-2) outbreak accelerates, vigorous and diverse efforts were made in developing treatment strategies. In addition to direct acting agents, increasing evidence showed some potential adjuvant therapies with promising efficacy against COVID-19. These therapies include immunomodulators (i.e. intravenous immunoglobulin, thymosin ?-1, interleukin [IL]-6, tocilizumab, cyclosporine, thalidomide, fingolimod), Chinese medicines (i.e. glycyrrhizin, baicalin, Xuebijing), anti-vascular endothelial growth factors (bevacizumab), estrogen modulating drugs, statins, and nutritional supplements (i.e. vitamins A, B, C, D, E and zinc). This article reviewed the pharmacological development of potential adjuvants for COVID-19 treatment.

SUBMITTER: Chen KH

PROVIDER: S-EPMC7434021 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Pharmacological development of the potential adjuvant therapeutic agents against coronavirus disease 2019.

Chen Kuan-Hsuan KH Wang Sheng-Fan SF Wang Szu-Yu SY Yang Yi-Ping YP Wang Mong-Lien ML Chiou Sih-Hwa SH Chang Yuh-Lih YL

Journal of the Chinese Medical Association : JCMA 20200901 9

As the coronavirus disease 2019 (COVID-19, also called severe acute respiratory syndrome coronavirus-2) outbreak accelerates, vigorous and diverse efforts were made in developing treatment strategies. In addition to direct acting agents, increasing evidence showed some potential adjuvant therapies with promising efficacy against COVID-19. These therapies include immunomodulators (i.e. intravenous immunoglobulin, thymosin α-1, interleukin [IL]-6, tocilizumab, cyclosporine, thalidomide, fingolimod ...[more]

PMID: 32568969

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Project description:Background: The pandemic of coronavirus disease 2019 (COVID-19) resulted in grave morbidity and mortality worldwide. There is currently no effective drug to cure COVID-19. Based on analyses of available data, we deduced that excessive prostaglandin E2 (PGE2) produced by cyclooxygenase-2 was a key pathological event of COVID-19. Methods: A prospective clinical study was conducted in one hospital for COVID-19 treatment with Celebrex to suppress the excessive PGE2 production. A total of 44 COVID-19 cases were enrolled, 37 cases in the experimental group received Celebrex as adjuvant (full dose: 0.2 g, bid; half dose: 0.2 g, qd) for 7-14 days, and the dosage and duration was adjusted for individuals, while seven cases in the control group received the standard therapy. The clinical outcomes were evaluated by measuring the urine PGE2 levels, lab tests, CT scans, vital signs, and other clinical data. The urine PGE2 levels were measured by mass spectrometry. The study was registered and can be accessed at http://www.chictr.org.cn/showproj.aspx?proj=50474. Results: The concentrations of PGE2 in urine samples of COVID-19 patients were significantly higher than those of PGE2 in urine samples of healthy individuals (mean value: 170 ng/ml vs 18.8 ng/ml, p < 0.01) and positively correlated with the progression of COVID-19. Among those 37 experimental cases, there were 10 cases with age over 60 years (27%, 10/37) and 13 cases (35%, 13/37) with preexisting conditions including cancer, atherosclerosis, and diabetes. Twenty-five cases had full dose, 11 cases with half dose of Celebrex, and one case with ibuprofen. The remission rates in midterm were 100%, 82%, and 57% of the full dose, half dose, and control group, respectively, and the discharged rate was 100% at the endpoint with Celebrex treatment. Celebrex significantly reduced the PGE2 levels and promoted recovery of ordinary and severe COVID-19. Furthermore, more complications, severity, and death rate were widely observed and reported in the COVID-19 group of elders and with comorbidities; however, this phenomenon did not appear in this particular Celebrex adjunctive treatment study. Conclusion: This clinical study indicates that Celebrex adjuvant treatment promotes the recovery of all types of COVID-19 and further reduces the mortality rate of elderly and those with comorbidities.

Project description:Search for an effective and safe vaccine to prevent transmission of current pandemic is an unmet need. This study reviews and compares the available early phase clinical data of vaccine candidates which have reached phase 3 of clinical development. The latest update of "DRAFT landscape of coronavirus (CoV) disease 2019 candidate vaccines (October 2, 2020)" released by the World Health Organization was accessed to identify the potential vaccine candidates. The full text articles (published and/or preprint) of data of early clinical trials of the selected vaccines were accessed from the links provided in the same document, PubMed and/or medRxiv.com. After extraction and synthesis, the data were critically evaluated for the study efficacy and safety outcomes. Of the total 193 candidate vaccines 10 were found to reach phase 3 of the clinical development. Nine of these were included in the evaluation process. In all of the included studies, immunogenicity and serious adverse events/local or systemic adverse events/laboratory parameters abnormality was considered as efficacy and safety outcomes respectively. Immunogenicity response with most of the vaccines was either higher than or similar to the respective controls except one (recombinant adenovirus type 26 COV2 [Ad26.COV2.S]) for which it was less than that in control. Overall adverse events (related and/or unrelated) were more with vaccines than those with respective control(s) in three studies, in other two, these were similar whereas in one study, the events were less in the vaccine group than in control group and in the rest, data described were descriptive only without any mention for the same for the control. In conclusion all studies showed immunogenic response to target protein of severe acute respiratory syndrome CoV-2 and which was higher than the respective control except for Ad26.CoV2.S. Many of the vaccines caused more adverse events than the controls, however most were mild and transient and/or manageable.

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Pharmacological development of the potential adjuvant therapeutic agents against coronavirus disease 2019.

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Pharmacological development of the potential adjuvant therapeutic agents against coronavirus disease 2019.

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