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All Studies   All Outcomes    Recent:   

Prevalence of Potential Drug Interactions With Direct-Acting Antivirals for COVID-19 Among Hospitalized Patients

Mozaffari et al., Clinical Therapeutics, doi:10.1016/j.clinthera.2024.08.004
Sep 2024  
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Retrospective 788,238 hospitalized COVID-19 patients in the US, showing a very high prevalence of drug-drug interactions with paxlovid, with higher prevalence for older patients, patients with more comorbidities, and patients at high-risk for severe COVID-19.
Confounding by contraindication. Hoertel et al. find that over 50% of patients that died had a contraindication for the use of Paxlovid1. Retrospective studies that do not exclude contraindicated patients may significantly overestimate efficacy.
Black box warning. The FDA notes that "severe, life-threatening, and/or fatal adverse reactions due to drug interactions have been reported in patients treated with paxlovid"2.
Kamo et al. show significantly increased risk of acute kidney injury. Resistant variants are likely4,5.
Mozaffari et al., 7 Sep 2024, retrospective, USA, peer-reviewed, 9 authors, study period May 2020 - December 2022. Contact: rivera.christina@mayo.edu.
This PaperPaxlovidAll
Prevalence of Potential Drug Interactions With Direct-Acting Antivirals for COVID-19 Among Hospitalized Patients
PharmD, MPH, MBA Essy Mozaffari, PhD Aastha Chandak, MD, PhD Andrew Ustianowski, PharmD, RPh Christina G Rivera, MD, FACP Neera Ahuja, MPH Heng Jiang, PhD Mark Berry, MD Jason F Okulicz, MD Alpesh N Amin
Clinical Therapeutics, doi:10.1016/j.clinthera.2024.08.004
Implications: A significant proportion of patients hospitalized for COVID-19 receive medications for other conditions that have the potential to result in DDIs with DAAs; most predominantly with nirmatrelvir/ritonavir, a strong CYP3A enzyme inhibitor, fewer with remdesivir, and none with molnupiravir. Higher age and comorbidity burden were significantly associated with a higher likelihood of receiving medications that are "Contraindicated " with nirmatrelvir/ritonavir. In the evolving COVID-19 era, these findings provide insights into patients hospitalized for COVID-19, and the polypharmacy evaluations that clinicians may encounter when selecting among DAAs to manage COVID-19.
Declaration of competing interest Summary of ICMJE forms: Essy Mozaffari is an employee of Gilead Sciences, Inc. and holds stock or stock options. Aastha Chandak is an employee of Certara and declares support provided by Gilead Sciences, Inc. to her institution. Andrew Ustianowski declares consulting fees provided by Generate Biomedicines, Gilead Sciences, Inc., Merck/MSD, and Pfizer Inc. and payment or honoraria for lectures, presentations, speakers' bureaus, manuscript writing or educational events, and/or participation on a Data Safety Monitoring Board or Advisory Board from Astra Zeneca, Gilead Sciences, Inc., and GSK. Christina G. Rivera declares the receipt of grant or contracts from Gilead Science, Inc. as payment to PI colleague, consulting fees and participation on a Data Safety Monitoring Board or Advisory Board from Gilead Science, Inc., and payment of honoraria for lectures, presentations, speakers' bureaus, manuscript writing or educational events from Jobson Health, Continuing Education Network, CE Impact, Insmed, Gilead Sciences, Inc., Annenberg Center for Health Science, American College of Clinical Pharmacy, and PharmCon Healthcare Education. Neera Ahuja declares payment or honoraria for lectures, presentations, speakers' bureaus, manuscript writing or educational events from Gilead Sciences, Inc. Heng Jiang is an employee of Certara and declares support provided by Gilead Sciences, Inc. to his institution. Mark Berry is an employee of Gilead Sciences, Inc...
References
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Day, Snowden, Mclachlan, Life-threatening drug interactions: what the physician needs to know, Intern Med J
Ghasemi, Darvishi, Salari, Global prevalence of polypharmacy among the COVID-19 patients: a comprehensive systematic review and meta-analysis of observational studies, Trop Med Health
Iloanusi, Mgbere, Essien, Polypharmacy among COVID-19 patients: a systematic review, J Am Pharm Assoc
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Larsen, Assessing the proportion of the Danish population at risk of clinically significant drug-drug interactions with new oral antivirals for early treatment of COVID-19, Int J Infect Dis
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Late treatment
is less effective
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