CancelRx Research Portfolio

Despite the implementation of health information technology (health IT) targeting medication safety, ambulatory adverse drug events (ADEs) prompt over four million people to seek medical care and result in $8 billion in health care expenditures annually. One critical gap that Health IT has not meaningfully addressed is the electronic communication of medication discontinuation orders between prescribers and community pharmacists in the outpatient setting.

Prescribers routinely discontinue prescriptions electronically in the electronic health record (EHR) during outpatient clinic visits. Although these modifications are automatically documented in the EHR, medication discontinuation orders are not communicated to the patient’s pharmacy management software. Instead, such communication is a manual process, delegated to clinic staff who call or fax the pharmacy to notify them of the discontinuation.

Given the demands already placed on clinic staff, these orders are rarely communicated to the pharmacy.  Thus, despite being removed from the EHR, discontinued medications remain on the community pharmacy list, resulting in medication list discrepancies.

Medication list discrepancies create a serious and alarming vulnerability that allows discontinued medications, even those discontinued due to a serious adverse drug reaction, to be repeatedly dispensed. Indeed, up to 5% of discontinued medications are later dispensed, with 34% of these events meeting the criteria for high risk for potential ADEs.

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CancelRx is an e-prescribing transaction that communicates a medication discontinuation order between the EHR and pharmacy management software and has the potential to reduce medication discrepancies and thus improve medication safety.

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The CancelRx research portfolio has been supported by multiple funding sources including the Gorden and Betty Moore Foundation (2017), Agency for Healthcare Research and Quality (2018),  University of Wisconsin–Madison Office of the Vice Chancellor for Research and Graduate Education with funding from the Wisconsin Alumni Research Foundation (2018), the NCPDP Foundation (2019), and the by the Clinical and Translational Science Award (CTSA) program, through the NIH National Center for Advancing Translational Sciences (NCATS), grant UL1TR002373.

Past grant

CancelRx: A Health IT Tool to Decrease Medication Discrepancies in the Outpatient Setting

Past grant

Impact of CancelRx on Discontinuation of Controlled Substance Prescriptions: Specifically Pain Medications (Opioids), Stimulants, and Benzodiazepines

Publications

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Michelle Chui

Non-Peer Reviewed Journal Articles
Conference Proceedings
  • Stone JA, Watterson T, Xiong KZ, et al. Identifying Vulnerabilities in HealthIT: A Case Study of CancelRx Implementation in Clinic and Pharmacy Sociotechnical Systems. Proceedings of the International Symposium on Human Factors and Ergonomics in Health Care. 2020;9(1):64-66. doi:10.1177/2327857920091049
Oral and Poster Presentations
  • Watterson TL, Xiong KZ, Stone JA, RamlyE, Craddock L, Young A, Schiefelbein A, Brown R, Chui M. Implementing CancelRx: Describing adoption barriers using a process map framework. Academy Health Annual Conference on the Science of Dissemination and Implementation. 2018 December; Washington, DC, United States.
  • Watterson TL, Xiong KZ, Stone JA, Ramly E, Craddock L, Semanik M, Kleinschmidt P, Schiefelbein A, Brown R, Chui M. Front-Line vs. Leadership Perceptions of Health IT Implementation. International Conference for Quantitative Ethnography. 2019 October; Madison, WI, United States.
  • Xiong KZ, Watterson TL, Stone JA, Chui MA. Unintended Consequences of CancelRx. Academy Health Conference on the Science of Dissemination and Implementation. 2019 December; Washington, DC, United States.
  • Watterson TL, Xiong KZ, Stone JA, Ramly E, Chui MA. CancelRx: Comparing Front-Line and Leadership Perceptions of Health IT Implementation Using Quantitative Ethnography. American Pharmacists Association Annual Meeting. 2020 March; Virtual.
  • Stone JA, Watterson TL, Xiong KZ, Ramly E, Kleinschmidt P, Semanik M, Craddock L, Chui MA. Identifying Vulnerabilities in HealthIT: A Case Study of CancelRx Implementation in Clinic and Pharmacy Sociotechnical Systems. International Symposium on Human Factors and Ergonomics in Health Care. 2020 March; Virtual.
  • Kleinschmidt P, Watterson TL, Xiong KZ, Stone JA, Ramly E, Craddock L, Semanik M, Schiefelbein A, Brown R, Chui MA. CancelRx: An Interoperability Standard to Reduce Medication Discrepancies Between Clinics and Community Pharmacies. AMIA 2020 Clinical Informatics Conference. 2020 May; Abstract accepted, cancelled due to COVID-19.
  • Pitts S, Chui M, Oltman C, Akinwale, T. Implementation of electronic prescription cancellation: A Tale of Two Health Systems, A Retail Pharmacy, and the Evolution of CancelRx. AMIA Virtual Symposium. 2020 November; Virtual.
  • Watterson TL, Stone JA, Brown R, Ramly E, Kleinschmidt P, Semanik M, Schiefelbein A, Xiong KZ, Craddock L, Chui MA. CancelRx: Implementation and sustainability of a health IT tool to reduce medication list discrepancies. Academy Health Conference on the Science of Dissemination and Implementation. 2020 December; Virtual.
  • Watterson TL, Stone JA, Brown R, Xiong KZ, Scheifelbein A, Ramly E, Semanik M, Kleinschmidt P, Craddock L, Pitts S, Woodroof T, Chui M. Reducing Medication List Discrepancies in the Outpatient Setting. American Pharmacists Association Annual Meeting. 2021 March; Virtual.
  • Kleinschmidt P, Chui, M.A.. CancelRx: A Sea Change in Clinic-Pharmacy Communication. Epic XGM 2021. April 2021; Virtual.
  • Watterson T, Stone J, Gilson A, Brown R, Xiong KZ, Schiefelbein A, Ramly E, Kleinschmidt P, Semanik M, Craddock L, Pitts S, Woodroof T, Chui, M. CancelRx: The role of technology when controlled substances are discontinued. Academy Health Annual Research Meeting. 2021 June; Virtual.
Podcasts

Grant information

2017 – $308,000 “Improving the Medication Cancellation Process in Pharmacy and Outpatient Clinics,” Award by the Gordon and Betty Moore Foundation, 2017. (Dr. Chui is Principal Investigator.)

2018 – $298,000 “CancelRx: A Health IT Tool to Decrease Medication Discrepancies in the Outpatient Setting,” Award by the AHRQ R21. (Dr. Chui is Principal Investigator.)

2018 – $44,793 “Exploring the Unintended Consequences of CancelRx, a health IT tool to decrease medication discrepancies in the outpatient setting,” Award by the University of Wisconsin – Madison Office of the Vice Chancellor for Research and Graduate Education with funding from the Wisconsin Alumni Research Foundation. (Dr. Chui is Principal Investigator.)

2019 – $36,000 “Impact of CancelRx on Discontinuation of Controlled Substance Prescriptions. Specifically, Pain Medications (Opioids), Stimulants, and Benzodiazepines,” Award by the NCPDP Foundation. (Dr. Chui is Principal Investigator.)