Reinforcing adherence to antihypertensive medications

Area of Science:

• Clinical Pharmacy
• Health Behavior
• Digital Health

Background:

• Medication adherence is crucial for managing hypertension.
• Poor adherence to antihypertensive therapy remains a significant challenge in clinical practice.
• Novel interventions are needed to improve patient compliance.

Purpose of the Study:

• To evaluate a reinforcement intervention aimed at improving adherence to antihypertensive therapy.
• To assess the efficacy of financial incentives and cell phone technology in promoting medication adherence.
• To determine if the intervention leads to sustained improvements in adherence.

Main Methods:

• A pilot study with 29 participants randomized to standard care or enhanced care.
• The enhanced care group used cell phones for self-recorded adherence videos and received financial rewards.
• Adherence was measured by pill counts and self-reports over a 12-week treatment and 3-month follow-up period.

Main Results:

• Participants in the reinforcement group demonstrated high on-time adherence (97.8%) via video self-reports.
• Pill count adherence was significantly higher in the reinforcement group (98.8%) compared to standard care (92.6%) during treatment (P<.002).
• These adherence benefits persisted at 3-month follow-up (93.8% vs 78.0%, P<.001), with significant correlations between pill counts and self-reports.

Conclusions:

• Reinforcement intervention using cell phone technology and financial incentives shows significant potential to improve antihypertensive medication adherence.
• The intervention led to sustained improvements in adherence, suggesting a viable strategy for enhancing patient compliance.
• Further research is warranted to explore the broader clinical impact and scalability of this digital health approach.