Medicare part D research and policy highlights, 2012: impact and insights

Variation in Medication Therapy Management Delivery: Implications for Health Care Policy

BACKGROUND

Medication therapy management (MTM) program evaluations have revealed mixed outcomes, with some studies finding favorable outcomes and others finding no differences between patients who received MTM versus those who did not. One possible reason for outcomes variability is differences in delivery of MTM programs. The Chronic Care Model (CCM) provides a framework for how health care organizations can improve care for the chronically ill through 6 elements: organization of health care, delivery system design, clinical information systems, decision support, self-management, and linkages to community resources.

OBJECTIVE

To apply the CCM to understand variation in MTM delivery and formulate policy recommendations.

METHODS

This study used a mixed-methods descriptive analysis of MTM delivery. Investigators conducted visits to a purposeful sample of MTM practices to observe MTM and interview participants. The pharmacists and staff of these practices completed a modified Assessment of Chronic Illness Care (ACIC). Pairs of investigators analyzed interview transcripts to identify themes. Demographics and ACIC scores were summarized using descriptive statistics. After analysis, investigators discussed overarching themes and policy implications organized by CCM elements.

RESULTS

Seven practices participated, and 87 participants were interviewed. Based on ACIC scores, MTM patient volume, and payer mix, practices were categorized as Early Maturity Level or Later Maturity Level. From the model, organization of health care themes included whether MTM was the practice's core competence, belief/confidence in the MTM process, lack of formal rewards, and the influence of organizational goals and external environment. Delivery system design themes pertained to the extent that MTM processes were formalized. Clinical information systems themes were the extent to which systems were influenced by payers, efficiency strategies, and the accuracy and availability of information. In considering clinical decision support themes, alert design limitations and variation in user approaches to alerts based on experience were noted. We observed strong support for patient self-management; when present, barriers were attributed to the patient, MTM provider, or payer. Referral to community resources was minimal. Numerous policy implications were identified.

CONCLUSIONS

Our research identified numerous ways by which MTM delivery varies, particularly by MTM practice maturity level. These findings provide evidence for several policy changes that could be considered to optimize MTM delivery, encourage alignment with the CCM, and promote practice maturation.

DISCLOSURES

This research and a portion of Snyder's salary were supported by grant number K08HS022119 from the Agency for Healthcare Research and Quality. The content is solely the responsibility of the authors and does not necessarily represent the official views of the Agency for Healthcare Research and Quality. Snyder reports consulting fees from Westat for an evaluation of the CMS Enhanced MTM program. The other authors have nothing to disclose. Portions of this research have been presented as abstracts at the following conferences: (a) 2017 Academy Health Annual Research Meeting; June 25-27, 2017; New Orleans, LA; (b) 2015 American Society of Health-System Pharmacists Clinical Midyear Meeting; December 4-8, 2015; New Orleans, LA; and

Impact of Medicare Part D on Racial Disparities in Adherence to Cardiovascular Medications Among the Elderly

Medicare Part D improved medication adherence among the elderly, but to date, its effect on disparities in adherence remains unknown. We estimated Part D impact on racial/ethnic disparities in adherence to cardiovascular medications among seniors, using pooled data from the Medical Expenditure Panel Survey (2002-2010) on 14,221 Medicare recipients (65+ years) and 3,456 near-elderly controls (60-64 years). Study sample included White, Black, or Hispanic respondents who used at least one cardiovascular medication. Twelve-month adherence was measured as having an overall proportion of days covered ≥80%. Adherence disparities were defined according to the Institute of Medicine framework. Using difference-in-differences logistic regression, we found Part D to be associated with a 16-percentage-point decrease in the White-Hispanic disparity in overall adherence among seniors, net of the change among controls. Black-White disparities worsened only among men, by 21 percentage points. Increasing access and improving quality of medication use among disadvantaged seniors should remain a policy priority.

Challenges to integrating pharmacogenetic testing into medication therapy management

Some have proposed the integration of pharmacogenetic (PGx) testing into medication therapy management (MTM) to enable further refinement of treatments to reduce risk of adverse responses and improve efficacy. PGx testing involves the analysis of genetic variants associated with therapeutic or adverse response and may be useful in enhancing the ability to identify ineffective and/or harmful drugs or drug combinations. This "enhanced" MTM might also reduce patient concerns about side effects and increase confidence that the medication is effective, addressing 2 key factors that impact patient adherence: concern and necessity. However, the feasibility and effectiveness of the integration of PGx testing into MTM in clinical practice has not yet been determined. In this commentary, we consider some of the challenges to the integration and delivery of PGx testing in MTM services.

Effect of multiple pharmacy use on medication adherence and drug-drug interactions in older adults with Medicare Part D

OBJECTIVES

To assess the association between multiple pharmacy use and medication adherence and potential drug-drug interactions (DDIs) in older adults.

DESIGN

Cross-sectional propensity score-weighted analysis.

SETTING

2009 claims data.

PARTICIPANTS

A nationally representative sample of 926,956 Medicare Part D beneficiaries aged 65 and older continuously enrolled in fee-for-service Medicare and Part D that year who filled one or more prescriptions at a community retail or mail order pharmacy.

MEASUREMENTS

Multiple pharmacy use was defined as concurrent (overlapping time periods) or sequential use (non-overlapping time periods) of ≥ 2 pharmacies in the year. Medication adherence was calculated using a proportion of days covered of 0.80 or greater for eight therapeutic categories (beta-blockers, renin angiotensin system antagonists, calcium channel blockers, statins, sulfonylureas, biguanides (metformin), thiazolidinediones, and dipeptidyl peptidase-IV inhibitors). Potential DDIs arising from use of certain drugs across a broad set of classes were defined as the concurrent filling of two interacting drugs.

RESULTS

Overall, 38.1% of the sample used multiple pharmacies. Those using multiple pharmacies (concurrently or sequentially) consistently had higher adjusted odds of nonadherence (ranging from 1.10 to 1.31, P < .001) across all chronic medication classes assessed after controlling for sociodemographic, health status, and access to care factors than single pharmacy users. The adjusted predicted probability of exposure to a DDI was also slightly higher for those using multiple pharmacies concurrently (3.6%) than for single pharmacy users (3.2%, adjusted odds ratio (AOR) = 1.11, 95% confidence interval (CI) = 1.08-1.15) but lower in individuals using multiple pharmacies sequentially (2.8%, AOR = 0.85, 95% CI = 0.81-0.91).

CONCLUSIONS

Filling prescriptions at multiple pharmacies was associated with lower medication adherence across multiple chronic medications and a small but statistically significant greater likelihood of DDIs in concurrent pharmacy users.

Pharmaceutical policies used by private health insurance companies in Saudi Arabia

BACKGROUND

Currently, the Council of Cooperative Health Insurance (CCHI) is the body responsible for regulating health insurance in the KSA. While the cooperative health insurance schedule (i.e., model policy for health insurance) is available on the CCHI web site, policies related to pharmaceuticals are ambiguous.

AIMS

The primary objective of this study was to assess the impact of health insurance policies provided by health insurance companies in KSA on access to medication and its use.

SETTINGS AND DESIGN

This study was descriptive in design and used a survey, which was conducted through face-to-face interviews with the medical managers of health insurance companies.

METHODS AND MATERIAL

The survey took place between March and June, 2011. All 25 insurance companies accredited by CCHI were eligible to be included in the study. Out of these 25 companies, three were excluded from this survey as no response was received.

RESULTS

All the 16 companies responded "Yes" that they had a prior authorization policy; however, their reasons varied. Eight (50%) of the companies were concerned about the duration of treatment. While 10 (62.5%) did not offer additional coverage over the CCHI model policy, the other 6 (37.5%) reported that they could reconcile certain conditions. The survey also demonstrated that 10 insurance companies allowed refilling of medication but with certain limitations. Six out of the 10 permitted refilling within a maximum time of three months, whereas the other four companies did not have any time-based limits for refilling. The other six companies did not allow refilling without prescription.

CONCLUSIONS

Although this paper was primarily descriptive, the findings revealed a substantial scope for improvement in terms of pharmaceutical policy standards and regulation in the health insurance companies in KSA. Additionally, the study highlighted such areas to augment the overall quality use of medication, over-prescribing and irrational use of medication. Further research, thus, is definitely needed.