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Source: Remdesivir and COVID-19  Jun 16, 2020  1 year ago
Remdesivir Antiviral Activity Reduced By Co-Administration Of Hydroxychloroquine or Chloroquine Warns US FDA
Remdesivir Antiviral Activity Reduced By Co-Administration Of Hydroxychloroquine or Chloroquine Warns US FDA
Source: Remdesivir and COVID-19  Jun 16, 2020  1 year ago
Remdesivir:  The American Food and Drug Administration has issued a warning to doctors and all healthcare professionals about a newly discovered potential drug interaction related to the investigational antiviral drug remdesivir, an antiviral drug that is being evaluated as a potential treatment for the novel coronavirus disease 2019 (COVID-19) and has also been granted emergency use authorization (EUA) status for treating hospitalized patients with severe COVID-19. https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-fda-warns-newly-discovered-potential-drug-interaction-may-reduce?utm_campaign=FDA%20Warns%20of%20Newly%20Discovered%20Potential%20Drug%20Interaction%20That%20May%20Reduce%20Effectiveness&utm_medium=email&utm_source=Eloqua


 
The US FDA has stated that co-administration of remdesivir and chloroquine phosphate or hydroxychloroquine sulfate is not recommended as it may result in reduced antiviral activity of remdesivir. The agency is not aware of instances of this reduced activity occurring in the clinical setting but is continuing to evaluate all data related to remdesivir.
 
The US FDA is also revising their fact sheet for health care providers to include the warning that co-administration of remdesivir and chloroquine phosphate or hydroxychloroquine sulfate may result in less effective antiviral activity of remdesivir. The updated fact sheet for patients and caregivers will include additional information about possible allergic reactions and to alert patients to tell their healthcare providers if they are taking chloroquine phosphate or hydroxychloroquine sulfate.
 
Gilead released earlier this month the results of their phase 3 SIMPLE trial, which found that 5-day treatment with remdesivir in hospitalized patients with COVID-19 experienced greater clinical symptom improvement compared with standard of care. Following an evaluation of the emergency use authorization criteria and the scientific evidence available, the FDA issued an emergency use authorization (EUA) in May 2020 allowing for remdesivir to be distributed in the U.S. and to be administered intravenously by health care providers, as appropriate, to treat suspected or laboratory-confirmed COVID-19 in adults and pediatric patients hospitalized with severe disease. The safety and efficacy of remdesivir for the treatment of COVID-19 continue to be evaluated, and preliminary clinical trial results have shown that on average, patients treated with remdesivir had more rapid time to recovery.
 
Dr Patrizia Cavazzoni, MD, acting director of the FDA Center for Drug Evaluation and Research told Thailand Medical News, "Over the course of this unprecedented pandemic, the US FDA has issued emergency use authorizations for a variety of medical products after evaluating the available scientific evidence and carefully balancing any known or potential risks against the benefits of making these products available during the current public health emergency. We understand that, as we learn more about these products, changes may be necessary based on new data such as today's updates for health c are providers about a potential drug interaction and other important information about using remdesivir to treat COVID-19 patients. As we have done throughout the pandemic, the US FDA continues to evaluate all of the emergency use authorizations issued and their related materials and will continue to make changes as appropriate based on emerging science and data."
 
Interestingly the latest warning of US FDA is based on a completed non-clinical study. The US FDA asserted that it continues to prioritize the safety of Americans amid a rapidly-developing situation.
 
It must be noted that no detailed safety studies has ever been done on the drug remdesivir despite the US FDA giving granting it EUA status. The same happened for hydroxychloroquine and chloroquine until it was discovered to be lethal in many cases and its EUA status was finally withdrawn yesterday, reflecting the incompetency of the US FDA.
 
For more on the negative aspects of remdesivir, keep on logging to Thailand Medical News.
 

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Source : Thailand Medical news

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