Gamification and Social Incentives to Augment Medication Adherence

Atherosclerotic cardiovascular disease (ASCVD) is the leading cause of morbidity and mortality in the United States. Hypertension and hyperlipidemia have been recognized as risk factors for ASCVD for more than 60 years, with several low-cost medications approved for treatment offering up to 88% reduction of cardiovascular events with perfect adherence. Poor medication adherence is an important contributor to poor risk factor control, and affects Black patients and those with low socioeconomic status to a greater extent than other populations. Interventions specifically targeting improved medication adherence in Black communities and those with low socioeconomic status may therefore improve cardiovascular health in these vulnerable groups. Previous trials have used multiple different methods to increase medical adherence, but few of these methods have been implemented due to their high cost and/or personnel-heavy approaches. Leveraging insights from behavioral economics may facilitate a lower touch, less expensive, and ultimately more scalable approach to increase medication adherence. Therefore, the investigators will perform a randomized controlled trial of a gamification intervention that leverages insights from behavioral economics-based versus attention control to determine the effect of the gamification intervention on medication adherence. Participants will include patients with poorly-controlled hypertension, hyperlipidemia, and a history of nonadherence to medications from a single clinic that serves patients from West and Southwest Philadelphia, a community with a high proportion of Black individuals. Patients in both arms will be provided with a blood pressure cuff and enrolled in an automated bidirectional text messaging platform that will send daily texts asking about medication adherence and twice weekly texts asking if participants have measured their blood pressure that day. The intervention arm will include a precommitment pledge, weekly progression (or regression) through levels with loss-framing of points, support from a family member or friend, and accountability from a primary care physician. After 18 weeks, changes in patient-reported medication adherence (primary outcome) will be compared between study arms along with patient-reported blood pressure and medication possession ratio (MPR).