Impact of a Nationwide Medication Therapy Management Program on Drug-Related Problems at the Medication Management Center in 2012

Abstract

Objectives: To compare provider acceptance rates of medication therapy management (MTM) interventions initiated by a MTM center for potential drug-related problems in 2012. Interventions included cost-savings to patients, adherence to clinical guidelines, medication adherence, and safety initiatives. Methods: This retrospective cross-sectional project measured the provider acceptance rates of MTM interventions for Medicare Part D beneficiaries. Intervention count and acceptance rates were analyzed from the center’s MTM software and database that utilizes prescription claims analysis post-intervention to determine intervention success. A chi-square test was used to assess the statistical significance between the interventions. An alpha level of 0.5 was determined a-priori. This was a quality improvement project, and Institutional Review Board approved this project as exempt status. Results: The total percent of recommendations accepted was 35% (159,795 out of 455,898). The rate of acceptance was highest for safety interventions (51%), followed by cost (35%), adherence (12%), and guidelines (8%). The acceptance rates for the four intervention types were statistically different from each other (p-value <0.0001). Within each intervention type, the most frequently accepted interventions were: removal of medications from the Beer’s Criteria (8% of safety related changes); changes from a brand name, non-oral medication like eye drops and nasal sprays, to a generic within the same class (15% of cost-saving related changes); improved adherence to hypertension and diabetic medications (29% of adherence related changes); and adding an antihypertensive agent to diabetic patients (62% of clinical guideline related changes). Conclusions: Safety initiatives had the highest acceptance percentage of all four intervention types. Approving more safety interventions with medication use may reduce the risk of morbidity and mortality. Pharmacists providing MTM services may want to increase focus on drug safety as providers are accepting more safety interventions. More research is needed to determine why providers approve the other recommendations at lower rates.