Pharmacist-initiated interventions using RxChange message communication with prescribers for electronic prescriptions: A retrospective descriptive study.

Background: RxChange messages improve patient medication management by enhancing pharmacist-prescriber communication, but their usage patterns in the United States are not well-documented.

Objective: To determine intervention characteristics by pharmacists and prescribers using RxChange messages.

Methods: A retrospective analysis of electronic prescription and RxChange messages from 2022 to 2023, using data from Surescripts, LLC, was conducted. This included NewRx messages and RxChange Responses, categorized by 7 RxChange use cases and Anatomical Therapeutic Chemical level 4 medication classes. Descriptive statistics and nonparametric tests were used for statistical analysis.

Results: The study analyzed 1,361,528 RxChange messages. Therapeutic interchange was the predominant use case (76.14%). Direct approvals accounted for 10.44% of requests, approvals with changes for 42.55%, and denials for 47.01%. Script clarification had the highest approval rate (64.21%), while prior authorization faced the most frequent denials (73.38%). The top denial reason was "Request addressed through alternate methods such as phone or fax (41.50%)." The most frequent drug classes observed in the data were selective beta-2 adrenoreceptor agonists, extended-spectrum penicillins, selective serotonin reuptake inhibitors, and glucagon-like peptide 1 analogues. Time from new e-prescription issuance to RxChange request submission was longer than from request to response, with a significant statistical difference (median 1.57 vs. 0.27 days, P value < 0.05).

Conclusion: This study highlights interventions pharmacists make using RxChange with electronic prescriptions to improve patient care and medication safety. It underlined the need for improved RxChange message content and data on the effectiveness of RxChange messages in improving medication use.