Introduction: Almost half of patients discharged from hospital are re-admitted or return to the emergency department (ED) within 90 days. Patient nonadherence to medication changes during hospitalization and the use of potentially inappropriate medications (PIMs) both contribute to the risk of adverse events post-discharge. Smart About Meds (SAM) is a patient-centered mobile application designed to target medication nonadherence and PIMs use. This protocol describes a randomized controlled trial (RCT) to evaluate the effectiveness of SAM. Methods \& Analysis: A pragmatic, stratified RCT will be conducted among 3,250 patients discharged from internal medicine, cardiac care, cardiac surgery, vascular surgery, and respiratory units of the Royal Victoria Hospital and the Montreal General Hospital. At discharge, patients will be randomized 1:1 to usual care or the SAM intervention. SAM integrates novel user-centered features (e.g. continuously updated medication list with pill images, side-effect checker, interaction checker) with pharmacist monitoring to tackle post-discharge nonadherence to new medication regimens. SAM also notifies patients of PIMS in their regimen, with advice to discuss with their physician. Following discharge, patients will be followed for 90 days, during which the occurrence of the composite outcome of ED visits, hospital readmissions, or death will be measured. Secondary outcomes will include the individual components of the composite outcome, nonadherence to medication changes, defined as failure to fill a new prescription, filling a modified prescription at the incorrect dose, or filling discontinued medications, secondary medication adherence, patient empowerment, and health-related quality of life. An intention-to-treat analysis will evaluate the effectiveness of SAM. Multivariable logistic regression will estimate differences between treatment groups in the proportion of patients nonadherent to at least one medication change. With a sample size of 3,250, there will be 80% power to detect a 5% absolute reduction in this outcome. Two-way interaction terms will test hypothesized modifiers of SAM's effectiveness, including hospital, unit, age, sex, gender and comorbidity burden. Binary and continuous secondary outcomes will be assessed using multivariable logistic and linear regression, respectively.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
DOUBLE
Enrollment
3,250
See description of intervention group
McGill University Health Centre
Montreal, Quebec, Canada
RECRUITINGED visits, hospital readmissions, and deaths (composite)
This is a composite, binary outcome of having experienced an ED visit, hospital readmission, or death in the 90 days post-discharge. In Quebec, physicians must record the location of the services they provide to be remunerated on a fee-for-service basis. These medical services claims data are timely and accurate in measuring hospitalization occurrence and length of stay. The hospitalization database, which records admission and discharge diagnoses and procedures for all acute care hospitalizations in Quebec, will be used to collect additional descriptive information on the reasons for hospitalization and to re-validate the medical services data. Patients will be classified as having an ED visit or hospital readmission if they received a service whose location is recorded as an ED or inpatient hospital unit, respectively. Post-discharge deaths will be retrieved from the RAMQ beneficiary database.
Time frame: 90 days post-discharge
Individual components of the primary composite outcome
ED visits, hospital readmissions and deaths occurring in the 90 days post-discharge, each of which will be measured separately as a binary secondary outcome.
Time frame: 90 days post-discharge
Nonadherence to medication changes
This is a binary outcome of a patient having adhered or not to medication changes in the discharge prescription. Nonadherence to medication changes is defined as a failure to fill a new prescription within 90 days of discharge, filling a modified prescription at the incorrect dose, or filling any discontinued medication in 90 days.
Time frame: 90 days post-discharge
Secondary adherence
Disease-modifying medications are defined as those that prevent health deterioration and typically need to be taken on a daily basis to be effective. A list of these medications will be compiled based on the World Health Organization's list of essential medicines. Secondary adherence will be measured for each disease-modifying medication that is filled using the medication possession ratio, which is calculated as the days of supply (based on the duration of dispensed prescription during follow-up) divided by the number of days of follow-up. Left-over supply prior to admission, when relevant, will be included in the calculation and only supply within the 90-day period for post-discharge dispensations will be included. In Quebec, over 94% of prescriptions are dispensed for 30 days or less, which should provide an accurate measure of persistence.
Time frame: 90 days post-discharge
Patient and caregiver empowerment
Patient and caregiver empowerment will be measured using the Patient Reported Outcome Measurement Information System (PROMIS) Self-Efficacy Measure for Managing Medication and Treatments (PROMIS-SE Meds). This 8-item measure assesses patient confidence in managing medication schedules of varying complexity and in challenging situations, such as when running out of supply or when adverse effects occur. Five-point ratings scales assess confidence levels. Scores are calibrated as T-scores (mean 50, SD 10), where higher scores indicate greater self efficacy.
Time frame: 90 days post-discharge
Patient health-related quality of life
Patient health-related quality of life (HRQoL) will be measured using the Patient Reported Outcome Measurement Information System-29 (PROMIS-29), which measures quality of life in seven health domains (physical function, fatigue, pain interference, depressive symptoms, anxiety, ability to participate in social roles and activities, and sleep disturbance). Five-point ratings scales assess HRQoL. Scores are calibrated as T-scores (mean 50, SD 10), where higher scores indicate greater self HRQoL.
Time frame: 90 days post-discharge
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