Perampanel for COVID-19

Perampanel may be beneficial for COVID-19 according to the studies below. COVID-19 involves the interplay of 500+ viral and host proteins and factors providing many therapeutic targets. Scientists have proposed 12,000+ potential treatments. c19early.org analyzes 220+ treatments. We have not reviewed perampanel in detail.
Barış et al., Effective Fragrance Molecules and Essential Oils: A Potential Relief for COVID-19, Natural Product Communications, doi:10.1177/1934578X261487547
Objectives Essential oils and their chemical constituents are recognized for their antimicrobial properties against many infections. In this study, some molecules of essential oils are identified as potentially effective on the MPro of SARS-CoV-2 and as a BRD2 inhibitors. These essential oils were combined in an optimum formulation as (Anti-COV19-VERS4). This study evaluates the role of Anti-COV19-VERS4, in preventing Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) contagiousness and its secondary effects on infected tissues by in-vivo experiments. Methods Anti-COV19-VERS4 is formulated based on molecular docking studies. Following cytotoxic and antiviral dose determination, SARS-CoV-2 infected transgenic mice were treated with Anti-COV19-VERS4 spray. RT-qPCR was used to detect viral load and histopathologic analysis was performed. The experiment was terminated on the days of 5 and 6 when SARS-CoV-2 infection peaked. RT-qPCR was used to detect viral load and histopathologic analysis was performed. Two-way ANOVA and Student’s t -tests were used for statistical analysis. Results Cytotoxicity and neutralization assays revealed that the most effective dilution of Anti-COV19-VERS4 showing cytopathic effect (CPE) was 1/2600 and the 24-hour CC50 dose was 0.0154 mg/L. During in-vivo trials, 3 out of 14 mice in the control group died due to infection. The virus load of the Anti-COV19-VERS4 spray group on day 6 decreased compared to the control group. Moreover, lung injury scores for the Anti-COV19-VERS4 spray group were significantly lower than the control group on the 6 th day (p<0.05). This study demonstrates that Anti-COV19-VERS4 may be useful for preventing the contagiousness of SARS-CoV-2 and relieving lung injury. Conclusion Anti-COV19-VERS4 may be helpful as a cost-effective and efficacious adjunctive therapy for SARS-CoV-2.
Kalasin et al., Artificial intelligence-aiding lab-on-a-chip workforce designed oral [3.1.0] bi and [4.2.0] tricyclic catalytic interceptors inhibiting multiple SARS-CoV-2 protomers assisted by double-shell deep learning, RSC Advances, doi:10.1039/d4ra03965c
Deep learning-integrated lab-on-a-chip in designing oral [3.1.0] bi and [4.2.0] tricyclic interceptors inhibiting multiple SARS-CoV-2 protomers.
Al Adem et al., 3-chymotrypsin-like protease in SARS-CoV-2, Bioscience Reports, doi:10.1042/BSR20231395
Abstract Coronaviruses constitute a significant threat to the human population. Severe acute respiratory syndrome coronavirus-2, SARS-CoV-2, is a highly pathogenic human coronavirus that has caused the coronavirus disease 2019 (COVID-19) pandemic. It has led to a global viral outbreak with an exceptional spread and a high death toll, highlighting the need for effective antiviral strategies. 3-Chymotrypsin-like protease (3CLpro), the main protease in SARS-CoV-2, plays an indispensable role in the SARS-CoV-2 viral life cycle by cleaving the viral polyprotein to produce 11 individual non-structural proteins necessary for viral replication. 3CLpro is one of two proteases that function to produce new viral particles. It is a highly conserved cysteine protease with identical structural folds in all known human coronaviruses. Inhibitors binding with high affinity to 3CLpro will prevent the cleavage of viral polyproteins, thus impeding viral replication. Multiple strategies have been implemented to screen for inhibitors against 3CLpro, including peptide-like and small molecule inhibitors that covalently and non-covalently bind the active site, respectively. In addition, allosteric sites of 3CLpro have been identified to screen for small molecules that could make non-competitive inhibitors of 3CLpro. In essence, this review serves as a comprehensive guide to understanding the structural intricacies and functional dynamics of 3CLpro, emphasizing key findings that elucidate its role as the main protease of SARS-CoV-2. Notably, the review is a critical resource in recognizing the advancements in identifying and developing 3CLpro inhibitors as effective antiviral strategies against COVID-19, some of which are already approved for clinical use in COVID-19 patients.
Odhar et al., Molecular docking and dynamics simulation of FDA approved drugs with the main protease from 2019 novel coronavirus, Bioinformation, doi:10.6026/97320630016236
Ghahremanpour et al., Identification of 14 Known Drugs as Inhibitors of the Main Protease of SARS-CoV-2, bioRxiv, doi:10.1101/2020.08.28.271957
AbstractA consensus virtual screening protocol has been applied to ca. 2000 approved drugs to seek inhibitors of the main protease (Mpro) of SARS-CoV-2, the virus responsible for COVID-19. 42 drugs emerged as top candidates, and after visual analyses of the predicted structures of their complexes with Mpro, 17 were chosen for evaluation in a kinetic assay for Mpro inhibition. Remarkably 14 of the compounds at 100-μM concentration were found to reduce the enzymatic activity and 5 provided IC50 values below 40 μM: manidipine (4.8 μM), boceprevir (5.4 μM), lercanidipine (16.2 μM), bedaquiline (18.7 μM), and efonidipine (38.5 μM). Structural analyses reveal a common cloverleaf pattern for the binding of the active compounds to the P1, P1’, and P2 pockets of Mpro. Further study of the most active compounds in the context of COVID-19 therapy is warranted, while all of the active compounds may provide a foundation for lead optimization to deliver valuable chemotherapeutics to combat the pandemic.
Ghahremanpour et al., Identification of 14 Known Drugs as Inhibitors of the Main Protease of SARS-CoV-2, ACS Medicinal Chemistry Letters, doi:10.1021/acsmedchemlett.0c00521
Hosseini et al., Computational molecular docking and virtual screening revealed promising SARS-CoV-2 drugs, Precision Clinical Medicine, doi:10.1093/pcmedi/pbab001
AbstractThe pandemic of novel coronavirus disease 2019 (COVID-19) has rampaged the world, with more than 58.4 million confirmed cases and over 1.38 million deaths across the world by 23 November 2020. There is an urgent need to identify effective drugs and vaccines to fight against the virus. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) belongs to the family of coronaviruses consisting of four structural and 16 non-structural proteins (NSP). Three non-structural proteins, main protease (Mpro), papain-like protease (PLpro), and RNA-dependent RNA polymerase (RdRp), are believed to have a crucial role in replication of the virus. We applied computational ligand-receptor binding modeling and performed comprehensive virtual screening on FDA-approved drugs against these three SARS-CoV-2 proteins using AutoDock Vina, Glide, and rDock. Our computational studies identified six novel ligands as potential inhibitors against SARS-CoV-2, including antiemetics rolapitant and ondansetron for Mpro; labetalol and levomefolic acid for PLpro; and leucal and antifungal natamycin for RdRp. Molecular dynamics simulation confirmed the stability of the ligand-protein complexes. The results of our analysis with some other suggested drugs indicated that chloroquine and hydroxychloroquine had high binding energy (low inhibitory effect) with all three proteins—Mpro, PLpro, and RdRp. In summary, our computational molecular docking approach and virtual screening identified some promising candidate SARS-CoV-2 inhibitors that may be considered for further clinical studies.