Improving Safety After Hospitalization in Older Persons on High-Risk Medications

The overarching objective of this research study is to pursue a large randomized controlled trial (RCT) focused on older patients recently discharged from the hospital who have been prescribed medications within one of three high-priority, high-risk drug classes in order to reduce the risk of clinically important medication errors. The National Action Plan for Adverse Drug Event (ADE) Prevention identified three high-priority drug classes as key targets for reducing the risk of drug-related injuries: anticoagulants; diabetes agents (insulin and oral agents); and opioids. These medication classes were chosen because they account for the greatest number of measurable drug-related harms to patients, and a substantial proportion of ADEs associated with these medications is considered preventable. The clinical trial will determine the value of a multifaceted medication error and ADE reduction intervention with a special focus on in-home assessment.

Components of the intervention will include: (1) in-home assessment of high-risk patients by a clinical pharmacist; (2) best-practice, evidence-based medication safety tools and resources targeted to high-risk patients and their caregivers; (3) communication with the primary care team via the electronic health record (EHR) regarding concerns relevant to the use of high-risk medications as well as other medication safety concerns; and (4) a follow-up phone call by the pharmacist to the patient and/or caregiver within 14 days of the home visit. The primary outcome of interest will be clinically important medication errors, a composite outcome comprised of preventable or ameliorable ADEs and potential ADEs due to medication discrepancies or non-adherence. Secondary outcomes will include: (1) preventable or ameliorable ADEs; (2) potential ADEs due to discrepancies or non-adherence; and (3) preventable or ameliorable ADEs judged to be serious, life-threatening, or fatal.

The specific aims for our study are as follows:

Aim 1: To adapt and integrate existing "best-practice," evidence-based medication safety tools, resources, and approaches into a cohesive, multifaceted intervention to reduce the occurrence of clinically important medication errors in older adults recently discharged from the hospital using one or more of the three high-priority, high-risk drug classes (anticoagulants, diabetes agents, and opioids).

Aim 2: To assess the impact of the multifaceted intervention on the incidence of clinically important medication errors employing a randomized controlled trial (RCT) design.

Aim 3: To conduct a process evaluation assessing intervention fidelity, adaptation, mechanisms of impact, essential components, and the influence of contextual factors.

Aim 4: To create: 1) a plan for disseminating study findings to stakeholders who might implement the intervention or make decisions about its future use; and 2) an implementation toolkit for those who wish to implement the intervention in practice.

Inclusion criteria

• 50 years of age and having been prescribed one of the three high-risk drug categories (anticoagulants, diabetes agents, and opioids) at the time of hospital discharge and must meet one or more of following screening Items:

• Prescribed >2 high-risk medications
• Low health literacy
• Caregiver (an affirmative response to "Have you received assistance from one or more caregivers over the past 4 weeks?").
• Low adherence
• Using >7 different medications

Exclusion criteria

• Plans to enroll in hospice upon discharge.
• Discharged for a psychiatric condition.
• Discharged to a skilled nursing facility, rehabilitation hospital, or nursing home.
• Patient is not capable of providing informed consent, and a proxy is not available.