Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Jun;36(3):518-525.
doi: 10.1111/fcp.12750. Epub 2022 Feb 1.

Optimization of application schedule of camphecene, a novel anti-influenza compound, based on its pharmacokinetic characteristics

Vladimir V Zarubaev  1 , Angelica V Garshinina  1 , Alexandrina S Volobueva  1 , Alexander V Slita  1 , Olga I Yarovaya  2 , Vladimir V Bykov  3 , Klim A Leonov  3 , Valery S Motov  3 , Veniamin A Khazanov  3 , Nariman F Salakhutdinov  2
Affiliations

Optimization of application schedule of camphecene, a novel anti-influenza compound, based on its pharmacokinetic characteristics

Vladimir V Zarubaev et al. Fundam Clin Pharmacol. 2022 Jun.

Abstract

Due to high variability and rapid life cycle, influenza virus is able to develop drug resistance against direct-acting antivirals. Development of novel virus-in113039hibiting drugs is therefore important goal. Previously, we identified camphor derivative, camphecene, as an effective anti-influenza compound. In the present study, we optimize the regimen of its application to avoid high sub-toxic concentrations. The protective activity of camphecene was assessed on the model of lethal pneumonia of mice caused by influenza viruses. Camphecene was administered either once a day or four times a day, alone or in combination with Tamiflu. Mortality and viral titer in the lungs were studied. Pharmacokinetics of camphecene was studied in rabbits. We have demonstrated that camphecene, being used every 6 h at a dose of 7.5 mg/kg/day, results in antiviral effect that was statistically equal to the effect of 100 mg/kg/day once a day, that is, the same effect was achieved by 13 times lower daily dose of the drug. This effect was manifested in decrease of mortality and decrease of virus' titer in the lungs. The studies of pharmacokinetics of camphecene have demonstrated that it does not accumulate in blood plasma and that its m ultiple applications with dosage interval of 65 min are safe. In addition, the results of the study demonstrate also that camphecene possesses additive effect with Tamiflu, allowing to decrease the dose of the latter. The results suggest that due to safety and efficacy, camphecene can be further developed as potential anti-influenza remedy.

Keywords: antiviral drugs; camphecene; influenza; pharmacokinetics; regimen of application.

PubMed Disclaimer

References

REFERENCES

    1. Fiore AE, Shay DK, Broder K, et al. Prevention and control of influenza recommendations of the Advisory Committee on Immunization Practices (ACIP), 2008:2008.
    1. Uyeki TM. Influenza. Ann Intern Med. 2017;167(5):ITC33-ITC48.
    1. Bloom DE, Cadarette D. Infectious disease threats in the twenty-first century: Strengthening the global response. Front Immunol. 2019;10:1-12.
    1. Simonsen L, Chowell G, Andreasen V, Gaffey R, Barry J, Olson D. A review of the 1918 herald pandemic wave: importance for contemporary pandemic response strategies. Ann Epidemiol. 2018;28(5):281-288.
    1. Monto AS, Fukuda K. Lessons from influenza pandemics of the last 100 years. Clin Infect Dis. 2020;70(5):951-957.

LinkOut - more resources