Paxlovid, Drug Exposure
Variable Name
rx_paxlovid
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Last Modified
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Abstract
The concept set was intended to identify all patients with a drug_exposure record indicating a Paxlovid exposure (nirmatrelvir/ritonavir).
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Description
This concept set was used to identify pediatric patients under 18 who were prescribed Paxlovid.
The concept set was developed by identifying RxNorm codes at the SCDF/SCDG level and descendants indicating Paxlovid, then string searching for the terms ‘paxlovid’, ‘ritonavir’, and ‘nirmatrelvir’ in ‘concept_name’. Codes were identified in the ‘code_type’ column as ‘Paxlovid’ (indicating nirmatrelvir/ritonavir), ‘nirmatrelvir’ (indicating nirmatrelvir alone) and ‘ritonavir’ (indicating ritonavir alone).
Please note, this concept set should not be used without appropriate accompanying logic to identify Paxlovid; the concept set contains individual ingredients that comprise the combination. Ritonavir and nirmatrelvir exposure must occur together on the same date to indicate a combination drug prescription. The attached file, FIND_PAXLOVID_FUNCITON.R, provides logic showing how the concept set can be used.
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Related Publications
Bose-Brill S, Hirabayashi K, Pajor NM, Rao S, Mejias A, Jhaveri R, Forrest CB, et al. 2022. “Pediatric Nirmatrelvir/Ritonavir Prescribing Patterns During the COVID-19 Pandemic”. medRxiv [Preprint]. 2022 Dec 26:2022.12.23.22283868.
DOI: 10.1101/2022.12.23.22283868
Update in: Hosp Pediatr. 2024 Aug 1;14(8):e341-e348.
DOI: 10.1542/hpeds.2023-007132