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BioCryst Pharmaceuticals, Inc. is an American pharmaceutical company headquartered in Durham, North Carolina. The company is a late stage biotech company that focuses on oral drugs for rare and serious diseases. BioCryst's antiviral drug peramivir (Rapivab) was approved by FDA in December 2014. It has also been approved in Japan, Korea, and China.
Favipiravir, sold under the brand name Avigan among others, is an antiviral medication used to treat influenza in Japan. It is also being studied to treat a number of other viral infections, including SARS-CoV-2. Like the experimental antiviral drugs T-1105 and T-1106, it is a pyrazinecarboxamide derivative.
Riamilovir, sold under the brand name Triazavirin, is a broad-spectrum antiviral drug developed in Russia through a joint effort of Ural Federal University, Russian Academy of Sciences, Ural Center for Biopharma Technologies and Medsintez Pharmaceutical. It has a novel triazolotriazine core, which represents a new structural class of non-nucleoside antiviral drugs.
Remdesivir, sold under the brand name Veklury, is a broad-spectrum antiviral medication developed by the biopharmaceutical company Gilead Sciences. It is administered via injection into a vein. During the COVID‑19 pandemic, remdesivir was approved or authorized for emergency use to treat COVID‑19 in numerous countries.
Drug repositioning is the repurposing of an approved drug for the treatment of a different disease or medical condition than that for which it was originally developed. This is one line of scientific research which is being pursued to develop safe and effective COVID-19 treatments. Other research directions include the development of a COVID-19 vaccine and convalescent plasma transfusion.
COVID-19 drug development is the research process to develop preventative therapeutic prescription drugs that would alleviate the severity of coronavirus disease 2019 (COVID-19). From early 2020 through 2021, several hundred drug companies, biotechnology firms, university research groups, and health organizations were developing therapeutic candidates for COVID-19 disease in various stages of preclinical or clinical research, with 419 potential COVID-19 drugs in clinical trials, as of April 2021.
The COVID-19 pandemic has affected innumerable scientific and technical institutions globally, resulting in lower productivity in a number of fields and programs. However, the impact of the pandemic has also led to the opening of several new research funding lines for government agencies around the world.
The following is a timeline of the COVID-19 pandemic in the United Kingdom from January 2020 to June 2020.
Molnupiravir, sold under the brand name Lagevrio, is an antiviral medication that inhibits the replication of certain RNA viruses. It is used to treat COVID‑19 in those infected by SARS-CoV-2. It is taken by mouth.
Merimepodib (VX-497) is a drug which acts as an inhibitor of the enzyme inosine monophosphate dehydrogenase, which is required for the synthesis of nucleotide bases containing guanine. This consequently inhibits synthesis of DNA and RNA, and results in antiviral and immunosuppressive effects. It progressed as far as Phase 2b human clinical trials against Hepatitis C but showed only modest benefits in comparison to existing treatments, however it continues to be researched, and also shows activity against other viral diseases such as Zika virus and foot and mouth disease virus.
GS-441524 is a nucleoside analogue antiviral drug which was developed by Gilead Sciences. It is the main plasma metabolite of the antiviral prodrug remdesivir, and has a half-life of around 24 hours in human patients. Remdesivir and GS-441524 were both found to be effective in vitro against feline coronavirus strains responsible for feline infectious peritonitis (FIP), a lethal systemic disease affecting domestic cats. Remdesivir was never tested in cats, but GS-441524 has been found to be effective treatment for FIP.
The treatment and management of COVID-19 combines both supportive care, which includes treatment to relieve symptoms, fluid therapy, oxygen support as needed, and a growing list of approved medications. Highly effective vaccines have reduced mortality related to SARS-CoV-2; however, for those awaiting vaccination, as well as for the estimated millions of immunocompromised persons who are unlikely to respond robustly to vaccination, treatment remains important. Some people may experience persistent symptoms or disability after recovery from the infection, known as long COVID, but there is still limited information on the best management and rehabilitation for this condition.
The Vaccine Taskforce in the United Kingdom of Great Britain and Northern Ireland was set up in April 2020 by the Second Johnson ministry, in collaboration with Chief Scientific Advisor Patrick Vallance and Chief Medical Officer Professor Chris Whitty, in order to facilitate the path towards the introduction of a COVID-19 vaccine in the UK and its global distribution. The taskforce coordinated the research efforts of government with industry, academics and funding agencies in order to expedite vaccine development and deployment.
The following is a timeline of the COVID-19 pandemic in the United Kingdom from January 2021 to June 2021.
Nirmatrelvir is an antiviral medication developed by Pfizer which acts as an orally active 3C-like protease inhibitor. It is part of a nirmatrelvir/ritonavir combination used to treat COVID-19 and sold under the brand name Paxlovid.
The COVID Moonshot is a collaborative open-science project started in March 2020 with the goal of developing an un-patented oral antiviral drug to treat SARS-CoV-2, the virus causing COVID-19. COVID Moonshot researchers are targeting the proteins needed to form functioning new viral proteins. They are particularly interested in proteases such as 3C-like protease (Mpro), a coronavirus nonstructural protein that mediates the breaking and replication of proteins.
Nirmatrelvir/ritonavir, sold under the brand name Paxlovid, is a co-packaged medication used as a treatment for COVID‑19. It contains the antiviral medications nirmatrelvir and ritonavir and was developed by Pfizer. Nirmatrelvir inhibits SARS-CoV-2 main protease, while ritonavir is a strong CYP3A inhibitor, slowing down nirmatrelvir metabolism and therefore boosting its effect. It is taken by mouth.
Ensitrelvir, sold under the brand name Xocova is an antiviral medication used as a treatment for COVID-19. It was developed by Shionogi in partnership with Hokkaido University and acts as an orally active 3C-like protease inhibitor. It is taken by mouth.
The PANORAMIC trial is a clinical trial in the United Kingdom testing the effectiveness of new antiviral drugs at the early stages of COVID-19 infections. The study aims to find out if antivirals can prevent death and hospitalisation and help faster recovery for people aged over 50 and those at higher risk due to underlying health conditions. The trial was launched in December 2021, and had nearly 30,000 people enrolled as participants.
The following is a timeline of the COVID-19 pandemic in the United Kingdom from July 2022 to December 2022.
References
- ↑ "Covid: Plan for pills to treat virus at home by autumn". BBC News. 20 April 2021. Retrieved 20 April 2021.
- ↑ "Government launches COVID-19 Antivirals Taskforce to roll out innovative home treatments this autumn". GOV.UK. 20 April 2021. Retrieved 23 April 2021.
- ↑ "expert reaction to announcement of an Antivirals Taskforce". Science Media Centre. 20 April 2021. Retrieved 23 April 2021.
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