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Authors
Sertkaya, Aylin https://orcid.org/0000-0001-5830-649X
El-Kilani, Zeid
Klein, Sean
Lord, Andreas
Jacobo-Rubio, Ruben
Parasrampuria, Sonal
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Funding
Funding for this research was provided by:
U.S. Department of Health and Human Services (ERG Contract No. HHSP233201500055I Task Order No. HHSP23337005T)
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Article History
Received: 21 August 2024
Accepted: 17 September 2025
First Online: 26 September 2025
Declarations
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: The views expressed in this paper are those of the authors and do not necessarily represent those of the Office of the Assistant Secretary for Planning and Evaluation, the U.S. Food and Drug Administration, the U.S. Department of Health and Human Services, or Eastern Research Group, Inc.
: Dr Sertkaya and Mr Lord reported receiving funding from U.S. Department of Health and Human Services Office of the Assistant Secretary for Planning and Evaluation for the duration of the study. Drs Klein and Parasrampuria and Mr El-Kilani were employed by the U.S. Department of Health and Human Services Office of the Assistant Secretary for Planning and Evaluation. Dr Jacobo-Rubio is employed by the U.S. Department of Health and Human Services Food and Drug Administration and reported no conflicts of interest. No other disclosures were reported.
: Not applicable.
: Not applicable.
: Not applicable.
: The pharmaceutical sales data used in this study were licensed from IQVIA and are proprietary. Due to contractual restrictions, the data beyond what is already provided in the technical supplement cannot be shared. Interested parties may contact IQVIA for access.
: The code is not publicly available as it consists of standard ordinary least squares (OLS) procedures that can be readily replicated using any common statistical software using the data provided in the technical supplement.
: Concept and design: Sertkaya, El-Kilani; Acquisition of data: El-Kilani, Lord, Jacobo-Rubio; Analysis and interpretation of data: Sertkaya, Lord, Jacobo-Rubio; Drafting of the manuscript: Sertkaya, Lord, Jacobo-Rubio, Parasrampuria; Critical revision of the paper for important intellectual content: El-Kilani, Klein, Jacobo-Rubio, Parasrampuria; Statistical analysis: Sertkaya; Provision of study materials or patients: N/A; Obtaining funding: El-Kilani; Administrative, technical, or logistic support: Sertkaya, Klein; Supervision: Sertkaya, El-Kilani, Klein, Parasrampuria.
