Pharmacist-led Pharmacogenomic Clinical Service Within the Program of All-inclusive Care for the Elderly

Tabula Rasa HealthCare (TRHC), doing business as CareKinesis, is the first national pharmacy that provides science-based medication risk identification and mitigation technologies and services. CareKinesis utilizes medication decision support tools and pharmacists certified in geriatrics to provide pharmacy services for various healthcare organizations including PACE organizations.

Program of All-inclusive Care for the Elderly (PACE) is a Medicare-Medicaid program that provides comprehensive medical and supportive services to individuals >55 years of age who are certified by their state as needing nursing home care. As an alternative to institutionalization, PACE helps these individuals live safely in their community. The aim of PACE is to improve overall quality of life in four domains (physical, psychological, social, and spiritual) using a multidisciplinary approach. In the United States, the vast majority of PACE organizations collaborate with one pharmacy to dispense drugs, in addition to other pharmacy services, for their population of participants.15 Presently, CareKinesis services more than 35 PACE organizations, including approximately 75 PACE sites, across the country. As a national PACE pharmacy provider since 2011, CareKinesis focuses on improving medication regimens to reduce medication-related risks while enhancing economic, clinical and humanistic outcomes.

Study Design Pharmacist-led pharmacogenomics (PGx) clinical services and medication safety reviews are currently being offered to PACE organizations under the direction of licensed healthcare prescribers by CareKinesis d/b/a Tabula Rasa HealthCare. This project aims to include patients enrolled in PACE organizations with chronic pain and who are prescribed CYP2D6 activated opioids. PGx testing will be performed by a contractual PGx vendor with TRHC. PGx results will be integrated into TRHC's proprietary Clinical Decision Support System (Medication Risk Mitigation™ Matrix, CareKinesis, Moorestown, NJ) that guides pharmacists to identify drug-drug interactions (DDIs), drug-gene interactions (DGIs), and drug-drug-gene interactions (DDGIs).16 Clinical pharmacists will translate PGx results combined with a comprehensive DDI review into actionable clinical decisions. Clinical pharmacists will provide medication therapy management recommendation to address medication problems to the PACE prescriber (physician). PACE prescribers will review the pharmacist's recommendation, and based on their clinical assessment, the prescriber will decide whether or not to implement the opioid therapy recommendation.

The measurement of health-related quality of life (QoL) and pain assessment using the EQ-5D survey, and numerical rating scale (NRS) for pain will be performed during the study by PACE prescribers or the PACE interdisciplinary team (IDT) as follows:

• Health-related quality of life questionnaire (EQ-5D) will be performed at baseline and at the completion of the study (visits 1 and 3, respectively)

• NRS for pain will be performed at baseline (before the PGx testing), 1-2 and 2-3 weeks after TRHC's pharmacist recommendations (visits 1, 2 and 3, respectively) All PACE patients will continue to receive usual medical care throughout the study. Changes to drug regimens will be at the discretion of the patients' PACE prescribers.