Scalable strategies for improving adherence in adults with hypertension—review

The global epidemic of hypertension remains largely uncontrolled and is a leading contributor to noncommunicable disease deaths worldwide. Failure to detect and to adequately treat hypertension is the largest contributor to uncontrolled hypertension. Yet, suboptimal adherence, which includes failure to initiate a prescription for antihypertensive pharmacotherapy, to take medications as often as prescribed, and to persist on pharmacotherapy long-term, is a well-recognized factor contributing to uncontrolled hypertension. A large body of research has identified several variables including patient, sociodemographic, comorbid medical and behavioral conditions, therapy-related, healthcare team, and are associated with nonadherence. Unfortunately, these factors individually and even in combination are typically only weakly related to adherence of individual patients. A two-fold strategy can be efficiently applied in the clinical setting to improve adherence. First, address major categories of adherence throughout the therapeutic journey for all patients from initiation of pharmacotherapy to titration, and maintenance. Efficient, scalable strategies in this category include teach back, clarity on treatment goals including the blood pressure range required to attain consistent control, initiation, and titration of single-pill antihypertensive combinations, limiting out-of-pocket expense, and refill consolidation. Second, objectively assess adherence when treatment goals are not attained with effective pharmacotherapy. Then, identify and address patient-specific barriers for individuals with suboptimal adherence. Given the multiple competing priorities and resultant time demands on clinicians and healthcare teams, effective, replicable, and scalable strategies to optimize adherence are important in attaining the evidence-based benefits of antihypertensive pharmacotherapy.