Time Preference for Immediate Gratification: Associations With Low Medication Adherence and Uncontrolled Blood Pressure.

BACKGROUND: In search of innovative approaches to the challenge of uncontrolled hypertension, we assessed the association between preference for immediate gratification (i.e., high discounting rate), low medication adherence, and uncontrolled blood pressure (BP) in adults with hypertension. METHODS: Using a probability discounting model and the Collier-Williams hypothetical discount rate framework, participants in this cross-sectional study reported their preference for a smaller amount of money available immediately (high discount rate; immediate gratification preference) vs. a larger amount available 1 year later (low discount rate; delayed gratification preference). Multivariable Poisson regression was used to test the association of high discounting rates with low antihypertensive medication adherence using the validated 4-item Krousel-Wood Medication Adherence Scale (K-Wood-MAS-4 score ≥1). Mediation of the association between high discounting rate and uncontrolled BP (systolic/diastolic BP ≥ 130/80 mm Hg) by low adherence was tested using the counterfactual approach. RESULTS: Among 235 participants (mean age 63.7 ± 6.7 years; 51.1% women; 41.9% Black), 50.6% had a high 1-year discount rate, 51.9% had low K-Wood-MAS-4 adherence, and 59.6% had uncontrolled BP. High discounting rates were associated with low adherence (adjusted prevalence ratio 1.58, 95% confidence interval (CI) 1.18, 2.12). Forty-three percent (95% CI 40.9%, 45.8%) of the total effect of high discount rate on uncontrolled BP was mediated by low adherence. CONCLUSIONS: Adults with preference for immediate gratification had worse adherence; low adherence partially mediated the association of high discount rate with uncontrolled BP. These results support preference for immediate gratification as an innovative factor underlying low medication adherence and uncontrolled BP.

Association of co-pay elimination with medication adherence and total cost.

OBJECTIVES: To determine whether elimination of co-pays for prescription drugs affects medication adherence and total health care spending. STUDY DESIGN: Retrospective comparative study. METHODS: We conducted a difference-in-differences comparison in the year before and after expansion of a Zero Dollar Co-pay (ZDC) prescription drug benefit in commercially insured Louisiana residents. Blue Cross and Blue Shield of Louisiana members with continuous disease management program enrollment were analyzed, of whom 6463 were enrolled in the ZDC program and 1821 were controls who were ineligible because their employers did not opt in. RESULTS: After ZDC expansion, medication adherence fell in the control group and rose in the ZDC group, with a relative increase of 2.1 percentage points (P = .002). Medical spending fell by $71 per member per month (PMPM) (P = .027) in the ZDC group relative to controls. Overall, there was no significant increase in the cost of drugs between treatment and controls. However, when drugs were further categorized, there was a significant increase of $8 PMPM for generic drugs and no significant difference for brand name drugs. Comparisons of medication adherence rates by household income showed the largest relative increase post ZDC expansion among low-income members. CONCLUSIONS: Elimination of co-pays for drugs indicated to treat chronic illnesses was associated with increases in medication adherence and reductions in overall spending of $63. Benefit designs that eliminate co-pays for patients with chronic illnesses may improve adherence and reduce the total cost of care.

Implicit and Explicit Attitudes Toward Antihypertensive Medications Explain Variation in Pharmacy Refill and Self-Reported Adherence Beyond Traditional Risk Factors: Potential Novel Mechanism Underlying Adherence.

Background In pursuit of novel mechanisms underlying persistent low medication adherence rates, we assessed contributions of implicit and explicit attitudes, beyond traditional risk factors, in explaining variation in objective and subjective antihypertensive medication adherence. Methods and Results Implicit and explicit attitudes were assessed using the difference scores from the computer-based Single Category Implicit Association Test and the Necessity and Concerns subscales of the Beliefs about Medicines Questionnaire, respectively. Antihypertensive medication adherence was measured using pharmacy refill proportion of days covered (PDC: mean PDC, low PDC <0.8) and the self-report 4-item Krousel-Wood Medication Adherence Scale (K-Wood-MAS-4: mean K-Wood-MAS-4, low adherence via K-Wood-MAS-4 ≥1). Hierarchical logistic and linear regression models controlled for traditional risk factors including social determinants of health, explicit, and implicit attitudes in a stepwise fashion. Community-dwelling insured participants (n=85: 44.7% female; 20.0% Black; mean age, 62.3 years; 43.5% low PDC, and 31.8% low adherence via K-Wood-MAS-4) had mean (SD) explicit and implicit attitude scores of 7.188 (5.683) and 0.035 (0.334), respectively. Low PDC was inversely associated with more positive explicit (adjusted odds ratio [aOR], 0.87; 95% CI, 0.78-0.98; P=0.022) and implicit (aOR, 0.12; 95% CI, 0.02-0.80; P=0.029) attitudes, which accounted for an additional 8.6% (P=0.016) and 6.5% (P=0.029) of variation in low PDC, respectively. Lower mean K-Wood-MAS-4 scores (better adherence) were associated only with more positive explicit attitudes (adjusted ß, -0.04; 95% CI, -0.07 to -0.01; P=0.026); explicit attitudes explained an additional 5.6% (P=0.023) of K-Wood-MAS-4 variance. Conclusions Implicit and explicit attitudes explained significantly more variation in medication adherence beyond traditional risk factors, including social determinants of health, and should be explored as potential mechanisms underlying adherence behavior.

Value-based insurance design in Louisiana: Blue Cross Blue Shield's Zero Dollar Co-pay program.

OBJECTIVES: To determine whether a program that eliminated pharmacy co-pays, the Blue Cross Blue Shield of Louisiana (BCBSLA) Zero Dollar Co-pay (ZDC) program, decreased health care spending. Previous studies have found that value-based insurance designs like the ZDC program have little or no impact on total health care spending. ZDC included an expansive set of medications related to 4 chronic diseases rather than a limited set of medications for 1 or 2 chronic diseases. Additionally, ZDC focused on the most at-risk patients. STUDY DESIGN: ZDC began in 2014 and enrolled patients over time based on (1) when a patient answered a call from a nurse care manager and (2) when a patient or their employer changed the benefit structure to meet the program criteria. During 2015 and 2016, 265 patients with at least 1 chronic condition (asthma, diabetes, hypertension, mental illness) enrolled in ZDC. METHODS: Observational study using within-patient variation and variation in patient enrollment month to identify the impact of the ZDC program on health spending measures. We used 100% BCBSLA claims data from January 2015 to June 2018. Monthly level event studies were used to test for differential spending patterns prior to ZDC enrollment. RESULTS: We found that total spending decreased by $205.9 (P = .049) per member per month, or approximately 18%. We saw a decrease in medical spending ($195.0; P = .023) but did not detect a change in pharmacy spending ($7.59; P = .752). We found no evidence of changes in spending patterns prior to ZDC enrollment. CONCLUSIONS: The ZDC program provides evidence that value-based insurance designs that incorporate a comprehensive set of medications and focus on populations with chronic disease can reduce spending.

On the horizon for multiple myeloma.

Treatment of multiple myeloma (MM) remains highly individualized, with multiple factors that play a role in determining the best course of therapy. Patient-specific criteria such as age of onset, whether the patient is symptomatic at the time of diagnosis, and any detected high-risk cytogenic abnormalities are all considerations when selecting a regimen. Newer agents such as bortezomib and lenalidomide in combination with low-dose steroids have replaced more toxic chemotherapeutic regimens for primary induction and have led to significant increases in progression-free survival. Depending on duration of response prior to relapse, patients may be rechallenged with the same regimen, switched to an alternative, or may undergo hematopoietic cell transplant (HCT), which remains a highly effective treatment option for patients who are candidates. However, the cost of transplantation remains high and some patients may require a second transplantation if the initial response is incomplete. With the availability of newer agents for salvage therapies in refractory or relapsed patients, the reliance on HCT may decrease, potentially lowering healthcare costs. In addition, the availability of orally active agents may decrease the need for outpatient infusions, thus decreasing the overall costs associated with treatment and improving patient satisfaction. Finally, combination regimens that use lower doses may prove to be less toxic as well as more effective. Even though MM only accounts for approximately 1% of all cancers in the United States, with 75 million "baby boomers" now reaching the median age of diagnosis, the increased number of cases could have a substantial impact on healthcare costs.

Role of student pharmacists in the identification and prevention of medication-related problems.

OBJECTIVES: To measure the total rate of attending physician, medical resident, and medical student acceptance of interventions recommended by third-year student pharmacists supervised by a licensed pharmacist and to determine the type of health care provider group that accepted the most interventions, type of interventions provided, and number of patients counseled on medication use. METHODS: This prospective unblinded pilot study followed single interventions documented by nine third-year student pharmacists enrolled at the University of Louisiana at Monroe College of Pharmacy. Success rates of suggested interventions made to family medicine attending physicians, pharmacists, medical residents, and medical students in three Louisiana outpatient clinics were documented. Student pharmacists performed medication histories, identified potential medication-related problems, discussed interventions with health care providers, and counseled patients on medication use. Outcomes assessed were intervention type and number, intervention acceptance rate, and number of patients counseled. RESULTS: Student pharmacists communicated with attending physicians, medical residents, and/or medical students regarding 32 patients. A total of 48 interventions were documented. Of these interventions, 34 were potential medication-related problems, 8 were pharmacotherapeutic recommendations for a new problem, 4 were responses to a health care provider's drug information requests, and 2 were referrals to a diabetes education class. The acceptance rate of student pharmacists' recommendations was 86%. Attending physicians accepted 93.8% of recommended interventions, medical residents 70%, and medical students 87.5%, Student pharmacists counseled 29 patients on medication use. CONCLUSION: Student pharmacists were able to recommend new drug regimens and discuss changes in therapy with health care providers. Attending physicians, medical residents, and medical students accepted the majority of students' recommendations. Third-year student pharmacists have the potential to serve an important role in the identification and prevention of medication-related problems by suggesting interventions to health care providers.

Clinical inquiries. Which drugs are best when aggressive Alzheimer's patients need medication?

Atypical antipsychotics are effective; so are selective serotonin reuptake inhibitors (SSRIs), and they may be safer. Atypical antipsychotics are an effective short-term (6-12 weeks) treatment for aggressive behavior in patients with Alzheimer's disease because they consistently decrease aggression scores (strength of recommendation [SOR]: A, multiple randomized controlled trials [RCTs]). However, evidence of drug-related deaths in patients taking these drugs mandates weighing the benefits against the risks. SSRIs may be a safer, effective alternative (SOR: B, limited studies).