Adherence to Disease-Modifying Therapies at a Multiple Sclerosis Clinic: The Role of the Specialty Pharmacist

Individual and Community-Level Characteristics and Adherence to Specialty Medications

Background: Understanding risk factors for nonadherence can help specialty pharmacies optimize resources to prevent nonadherence and inform risk-stratification processes. Objective: To determine which individual and community-level characteristics are associated with nonadherence to specialty medications. Methods: We analyzed a cohort of patients enrolled in a prospective randomized controlled trial having filled a specialty medication at least 4 times in the previous 12 months with a proportion of days (PDC) covered < 0.90. We collected patient age, gender, race, medication administration type, therapy start date, home address, insurance type, and online patient portal status from the electronic health record. An ordinal logistic regression model was used to assess the association of nonadherence with individual and community-level patient characteristics. Results: Most patients were female (68%), white (82%), and held commercial insurance (58%) with a median age of 53 (interquartile range [IQR] 40, 64) years. Patients were mostly from the adult rheumatology (35%), multiple sclerosis (20%) and lipid (17%) clinics. Given a 10-year increase in age, patients had lower odds of having lower PDC (odds ratio [OR] = 0.82, 95% confidence interval [CI] = 0.71-0.94, P = 0.005). Patients on therapy greater than or equal to 1 year had half the odds of having lower PDC relative to patients on therapy less than 1 year (OR = 0.52, CI = 0.35 - 0.75, P < 0.001). No statistically significant associations were found between PDC and gender, race, insurance type, route of administration, clinic type, patient portal status, median income, percent receiving government assistance, or percent with no health insurance. Conclusion: Patients with younger age and shorter duration on treatment may be at-risk for lower adherence. Specialty pharmacies may benefit from targeting adherence interventions to these groups.

Cost avoidance from health system specialty pharmacist interventions in patients with multiple sclerosis

BACKGROUND

Specialty pharmacists monitor patients taking multiple sclerosis (MS) disease-modifying therapies (DMTs) to evaluate response to therapy and intervene on adverse effects. These interventions have the potential to avoid health care costs by discontinuing inappropriate therapies and avoiding downstream health care utilization.

OBJECTIVE

To calculate the costs avoided by specialty pharmacist interventions in MS.

METHODS

A retrospective observational cohort study including patients at the Vanderbilt MS Clinic who received a specialty pharmacist intervention between February 1, 2022, and July 31, 2022, was performed. A panel of 3 investigators categorized each intervention based on the potential for cost avoidance: (1) no cost avoidance, (2) direct cost avoidance, and (3) indirect cost avoidance. A single intervention may have one or both cost avoidance types. Direct costs avoided included the cost of the potential service or medication avoided due to the intervention. Medication costs were calculated using the range of the average wholesale price and average wholesale price - 20%. For indirect costs avoided, the range of costs of a consequence (self-care, ambulatory visit, emergency department visit, hospitalization, or death) occurring had the intervention not been performed were multiplied by the range of probabilities for the consequence occurring (from zero [0] to very likely [0.5]). Self-care indirect cost savings equated to $0. Descriptive statistics summarized types of pharmacist interventions, the patients impacted, and costs avoided. In patients with an intervention that resulted in cost avoidance, chart review was performed to collect patient demographics, disease history, and MS-related health care usage during the 12 months prior to the pharmacist intervention.

RESULTS

485 pharmacist interventions in 354 individual patients were included. Fifty interventions in 38 individual patients (76% female, median age 51 years, 68% White) resulted in cost avoidance. The total estimated costs avoided in 6 months ranged from $123,733 to $156,265. In total, $138,410 were direct costs and $1,890 were indirect costs. Reasons for direct costs avoided (n = 13) were often safety monitoring (69%) or common side effects management (23%). Indirect costs avoidance (n = 37) resulted primarily from interventions on common side effects management (57%) and safety monitoring (22%). Self-care was the most common type of indirect cost avoided (n = 27). Interventions resulting in costs avoided were commonly seen in patients with relapsing-remitting MS (82%). The median time from MS diagnosis was 15 years and 42% of patients had previously trialed 1 other MS DMT.

CONCLUSIONS

There is a potential for significant health care savings after specialty pharmacist interventions in MS, primarily from preventing the dispensing of inappropriate therapies.

The impact of medical insurance on health care access and quality for people with multiple sclerosis in the United States: A scoping review

BACKGROUND

In the United States, health insurance coverage and quality mediate access to health care, a key social determinant of health.

OBJECTIVE

To perform a scoping review regarding the impact of insurance coverage and benefit design on health care access and both clinical and quality of life outcomes in people with MS (pwMS).

METHODS

Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guidelines were followed. A literature search was conducted from January 2010 to February 2022. Included studies were in English, peer-reviewed, US-based, and evaluated elements of insurance and their relationship with access and quality outcomes for adult pwMS.

RESULTS

Our search identified 1619 articles, of which 32 met inclusion criteria. Privately insured pwMS were more likely to be on disease-modifying therapy (DMT). Increased out-of-pocket spending was associated with lower DMT adherence and greater discontinuation rates. Access to specialty pharmacy programs was associated with improved DMT adherence.

CONCLUSION

Health insurance coverage and design strongly influences health care for pwMS in the United States and may be a modifiable social determinant of health. Increased pharmaceutical cost-sharing is associated with declines in DMT utilization and adherence. Further study is needed to better characterize the impacts of other core elements of health insurance, including prior authorization requirements and step therapy.

The Role of Clinical Pharmacists in Patient-Centric Comprehensive Multiple Sclerosis Care

BACKGROUND

Individuals with multiple sclerosis (MS) may experience a variety of visible and invisible symptoms and, as they age, comorbidities related and unrelated to their MS. This can result in a complex medication regimen that includes disease-modifying therapies, symptom management drugs, and prescriptions for other comorbid disorders.

METHODS

We reviewed the existing literature to discover how to optimally integrate neurology clinical pharmacists into the MS care team and how clinical pharmacists can directly support both providers and patients through their expertise in pharmacology and medication management.

RESULTS

With approaches founded on a shared decision-making process alongside neurology providers, patients, and care partners, clinical pharmacists can help meet the complex challenges of MS care in a variety of ways. Especially within MS clinics, they are well positioned to enhance current neurology practices given their extensive training in comprehensive medication management and their ability to identify nuances in medication management to promote pharmacovigilance and patient-centered care.

CONCLUSIONS

Neurology clinical pharmacists bring multifaceted medication management and patient counseling and education skills to the MS care team and can support the shared decision-making process by serving as an accessible resource for patients and clinicians. By building trusted partnerships between neurology providers and clinical pharmacists, MS care teams can achieve effective and efficient patient care. Future research should compare clinical and patient-reported outcomes between patients receiving standard care and those receiving multidisciplinary, pharmacist-integrated care.

Patient-reported outcomes and pharmacist actions in patients with multiple sclerosis managed by health-system specialty pharmacies

PURPOSE

This study evaluated patient-reported outcomes (PROs) and pharmacist actions for patients on disease-modifying therapies (DMTs) for multiple sclerosis (MS) through health-system specialty pharmacies (HSSPs).

METHODS

A multisite, prospective cohort study of patients utilizing an HSSP for DMT fulfillment was performed. Primary outcomes were affirmative answers to PRO questions regarding impacted productivity, hospitalization, and relapse and pharmacist actions. Rates of pharmacist actions were reported as the number of person-years of treatment per action. Univariate and multivariate logistic regression were used to evaluate the association between each PRO and covariates, including the number of pharmacist actions performed, age, sex, insurance, site, and route of administration.

RESULTS

The 968 patients included had 10,562 fills and 6,946 PRO assessments. The most common affirmative PRO was impacted productivity (14.6%). Pharmacists performed 3,683 actions, most commonly general medication education (42.6%) and safety (33.3%). Rates of general medication education and nonfinancial coordination of care actions were similar across medication classes; other pharmacist actions varied by medication class. Insurance type was significantly associated with reporting impacted productivity; patients with Medicare and Medicaid were 2.2 and 3.1 times more likely to have reported impacted productivity, respectively (P < 0.001) than commercially insured patients. Patients who reported impacted productivity had more pharmacist actions (P < 0.001).

CONCLUSION

Patients on DMTs through an HSSP reported low rates of impacted productivity, relapse, and hospitalization due to MS, although patients with noncommercial insurance were more likely to have impacted productivity. Patients reporting impacted productivity and those taking certain DMTs may require more frequent pharmacist actions.

Medication adherence to disease-modifying therapies among a cohort of Jordanian patients with relapsing-remitting multiple sclerosis: a multicentre cross-sectional study

OBJECTIVES

To evaluate medication adherence to oral and parenteral disease-modifying therapies (DMTs) and to explore factors associated with medication non-adherence in patients with multiple sclerosis (MS).

METHODS

A cross-sectional multicentre study was conducted among patients with MS. Patients who attended outpatient clinics of neurology departments from three major referral centres were invited to participate in the study. Medication adherence was measured using the Multiple Sclerosis Treatment Adherence Questionnaire.

KEY FINDINGS

A total of 319 patients with MS on DMT were included in the final analyses, their average age was 35 years and more than two-thirds (72.1%) of them were women. The adherent group comprised 46.7% of patients. The results of association analyses showed that factors that were associated with adherence level were female gender (P = 0.034), non-smoking/x-smoking (P = 0.007), school education (P = 0.019), unemployment (P = 0.006), history of previous DMT (P = 0.020), longer previous treatment duration (P = 0.008), and type of current DMT (P = 0.020). Among the non-adherent patients, there were significant differences between oral and parenteral DMT users in the importance of barriers to adherence (P < 0.001). Additionally, the degree of treatment satisfaction was higher in oral users than in parenteral users (P < 0.001).

CONCLUSIONS

The adherence level was quite low. Gender, smoking status, education, employment status, history of previous DMT, previous treatment duration and type of current DMT were associated with medication non-adherence in our patients with MS. These factors should be considered when evaluating medication adherence, and the modifiable factors may represent potential targets for interventions to improve pharmaceutical care planning in patients with MS.

Health-system specialty pharmacy role and outcomes: A review of current literature

DISCLAIMER

In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

PURPOSE

Specialty medications can have life-altering outcomes for patients with complex diseases. However, their benefit relies on appropriate treatment selection, patients' ability to afford and initiate treatment, and ongoing treatment optimization based on patient response to therapy. Mounting research demonstrates the benefits of the health-system specialty pharmacy (HSSP) in improving specialty medication access, affordability, and outcomes. The purpose of this rapid review is to describe the currently reported role and function of HSSP pharmacists and outcomes reported with use of the HSSP model, and to identify gaps in the literature where more information is needed to better understand the HSSP model and outcomes.

SUMMARY

Current literature describes the role of HSSP pharmacists in facilitating patient access, affordability, and initiation and maintenance of specialty medications. Though it is clear HSSP pharmacists are involved in treatment monitoring, often through utilizing the electronic health record, more information is needed to elucidate the frequency, method, and extent of monitoring. Despite several valuable continuity of care services reported to be provided by HSSPs, the breadth and degree of standardization of these services remains unclear. There is minimal literature describing HSSP education and research involvement. HSSPs have reported significant benefits of this patient care model, as demonstrated by higher adherence and persistence; better clinical outcomes; financial benefits to patients, payers and the health system; better quality of care; higher patient and provider satisfaction with services, and highly efficient specialty pharmacy services. More literature comparing clinical and diagnosis-related outcomes in HSSP versus non-HSSP patients is needed.

CONCLUSION

HSSPs provide comprehensive, patient-centered specialty medication management that result in improved care across the continuum of the specialty patient journey and act as a valuable resource for specialty clinics and patients beyond medication management. Future research should build on the current description of HSSP services, how services affect patient outcomes, and the impact HSSP network restrictions.

Pharmacist-managed multistep order transmittal for electronic specialty prescriptions reduces represcribing burden in ambulatory clinics: A retrospective cohort pilot study

BACKGROUND: Specialty medications pose unique prescribing challenges, including complexities with drug dosing and safety monitoring, need for prior authorization and patient financial assistance, use of payer-mandated specialty pharmacies, and special requirements for storage and handling. These challenges can lead to higher rates of represcribing for specialty clinic providers, who may be operating with inadequate information or limited resources. Multistep order transmittal (MSOT) is an electronic medical record (EMR) prescription work queue functionality used by a specialty pharmacy service to support select ambulatory clinics. OBJECTIVE: To explore the relationship between an MSOT specialty pharmacy support service and represcribing burden of specialty medications for providers in an ambulatory care setting. METHODS: A retrospective cohort pilot study was performed before and after MSOT implementation. Prescription data were queried from Sanford Health's EMR for patients who were electronically issued at least 1 prescription for an injectable biologic medication at a dermatology and rheumatology clinic. The pre-intervention group included index prescriptions prescribed between October 1, 2017, and June 20, 2018. The post-intervention group included index prescriptions prescribed between October 1, 2018, and June 20, 2019. Retrospective EMR review was completed to identify any prescriptions that were represcribed and the reason for represcribing. The primary outcome was the rate of represcribing. Secondary endpoints explored reason for represcribing, when it occurred. Nominal data were compared using Pearson's chi-square tests. Regressions were performed to account for potential confounders. RESULTS: The pre-intervention group included 880 index biologic prescriptions, and the post-intervention group included 941 index biologic prescriptions. The aggregate represcribing rate decreased from 12.73% in the pre-intervention group to 9.56% in the postintervention group (P = 0.03). Represcribing directly by providers as a result of needing to modify the destination pharmacy decreased significantly from 6.25% of the pre-intervention group to 0.64% of the post-intervention group (P < 0.01). However, represcribing due to patient preferences and prescribing errors increased significantly between the pre- and post-intervention groups, with patient preferences increasing from 0.91% to 2.55% (P = 0.01) and prescribing errors from 0.68% to 1.70% (P = 0.05), respectively. Represcribing due to provider preferences and payer restrictions remained similar between groups. CONCLUSIONS: Within 2 ambulatory care clinics in an integrated health care system, the use of pharmacist-managed MSOT reduced overall represcribing burden. The need to represcribe owing to wrong destination pharmacy was nearly eliminated, while appropriate represcribing to accommodate patient preferences and correct prescribing errors increased. DISCLOSURES: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. The authors have no conflicts of interest to disclose.

Dimethyl Fumarate-Induced Takotsubo Cardiomyopathy in a Patient With Relapsing-Remitting Multiple Sclerosis

Dimethyl fumarate (DMF) is an approved oral pharmacologic agent used in the treatment of relapsing-remitting multiple sclerosis (RRMS). Although commonly used in clinical practice, its mechanism of action remains largely unknown. Some frequent side effects associated with this drug are angioedema, hepatic injury, flushing, herpes zoster infection, and abdominal pain among others. A 47-year-old female presented with symptoms of an allergic reaction after initiating DMF therapy. She required intensive care unit admission due to an acute-hypoxic respiratory failure. A transthoracic echocardiogram (TTE) revealed apical ballooning and a left ventricular ejection fraction (LVEF) of 35%-40%. A coronary angiogram revealed no coronary artery disease. The diagnosis of takotsubo cardiomyopathy was made. The patient was managed with high-dose steroids and an epinephrine drip, in addition to a high-flow nasal cannula (HFNC) for respiratory support. At a three-month follow-up, a repeat TTE showed a resolution of the underlying takotsubo cardiomyopathy (CM) with no stunted myocardium and a normal ejection fraction (EF). Here, I highlight a life-threatening case of DMF-induced takotsubo CM and familiarize clinicians and patients with the need for close monitoring of symptoms when initiating disease-modifying drug (DMD) therapy.

HIV PrEP access and affordability: a multidisciplinary specialty pharmacy model

BACKGROUND

Increasing the number of human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP) providers expands PrEP access to more eligible patients to help end the HIV epidemic. Previous studies have noted providers perceive financial barriers as a limitation to prescribing PrEP.

OBJECTIVE

This study aimed to describe PrEP medication access and affordability in patients seen at a multidisciplinary PrEP clinic.

METHOD

We conducted a single-center, retrospective, cohort study of adults initiating tenofovir disoproxil fumarate/emtricitabine in the Vanderbilt PrEP Clinic between September 1, 2016, and March 31, 2019, with prescriptions filled by Vanderbilt Specialty Pharmacy. Data were gathered from the electronic health records and pharmacy claims. We evaluated 3 different time periods: initial evaluation to PrEP initiation, prescription of PrEP to insurance approval, and insurance approval to initiation. Treatment initiation was considered delayed when > 7 days from initial evaluation, and reasons for delay were recorded. Continuous variables are presented as median (interquartile range [IQR]), and categorical variables are presented as percentages.

RESULTS

We included 63 patients; most were male (97%), white (84%), and commercially insured (94%) with a median age of 38 years (IQR 29-47). Primary indication for PrEP was men who have sex with men at high risk of acquiring HIV (97%). Median time from initial appointment to treatment initiation was 7 days (IQR 4-8). Treatment delays occurred in 25% of patients and were mostly driven by patient preference (50%). Insurance prior authorization was required in 27% of patients; all were approved. Median total out-of-pocket medication costs for the entire study period were $0 (IQR $0-$0). Most patients (86%) used manufacturer copay cards.

CONCLUSION

In this cohort of mostly commercially insured men, the majority were able to access PrEP with low out-of-pocket costs facilitated by manufacturer assistance. Although generalizability beyond this population is limited, these results contradict perceived financial barriers to PrEP access.

Proportion of days covered as a measure of medication adherence

In an effort to expedite the publication of articles , AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

Development, implementation, and evaluation of a health outcomes and research program at an integrated health-system specialty pharmacy

PURPOSE

Health-system specialty pharmacies (HSSPs) provide high-quality, efficient, and collaborative care to patients receiving specialty therapy. Despite proven benefits of the integrated model, manufacturer and payer restrictions challenge the viability and utility of HSSPs. Vanderbilt Specialty Pharmacy developed a health outcomes and research program to measure and communicate the value of this model, drive improvement in patient care delivery, and advocate for recognition of HSSP pharmacists' role in patient care. The purpose of this descriptive report is to describe the development and results of this program.

SUMMARY

The health outcomes and research program began as an initiative for pharmacists to evaluate and convey the benefits they provide to patients, providers, and the health system. Early outcomes data proved useful in communicating the value of an integrated model to key stakeholders and highlighted the need to further develop research efforts. The department leadership invested resources to build a research program with dedicated personnel, engaged research experts to train pharmacists, and fostered internal and external collaborations to facilitate research efforts. As of March 2021, the health outcomes and research program team has published 33 peer-reviewed manuscripts, presented 88 posters and 7 podium presentations at national conferences, and received 4 monetary research awards. Further, the program team engages other HSSP teams to initiate and expand their own health outcomes research in an effort to empower all HSSPs in demonstrating their value.

CONCLUSIONS

The health outcomes and research program described has pioneered outcomes research among HSSPs nationwide and has proven valuable to specialty pharmacists, the health system, and key specialty pharmacy stakeholders.

Specialty pharmacist integration into an outpatient neurology clinic improves pimavanserin access

Introduction

Access to pimavanserin, the only Parkinson disease–related psychosis treatment approved by the FDA, is restricted by insurance requirements, a limited distribution network, and high costs. Following initiation, patients require monitoring for safety and effectiveness. The primary objective of this study was to evaluate impact of specialty pharmacist (SP) integration on time to insurance approval. Additionally, we describe a pharmacist-led monitoring program.

Methods

This was a single-center, retrospective study of adults prescribed pimavanserin by the neurology clinic from June 2016 to June 2018. Patients receiving pimavanserin externally or through clinical trials were excluded. Pre- (June 2016 to December 2016) and post-SP integration (January 2017 to June 2018) periods were assessed. Proportional odds logistic regression was performed to test association of approval time with patient characteristics (age, gender, insurance type) postintegration. Interventions were categorized as clinical care, care coordination, management of adverse event, or adherence.

Results

We included 94 patients (32 preintegration, 62 postintegration), 80% male (n = 75) and 96% white (n = 90) with a mean age of 73 years. Median time to approval was 22 days preintegration and 3 days postintegration. Higher rates of approval (81% vs 95%) and initiation (78% vs 94%) were observed postintegration. Proportional odds logistic regression suggested patients with commercial insurance were likely to have longer time to approval compared with patients with Medicare/Medicaid (odds ratio 7.1; 95% confidence interval: 1.9, 26.7; P = .004). Most interventions were clinical (51%, n = 47) or care coordination (42%, n = 39).

Conclusion

Median time to approval decreased postintegration. The SP performed valuable monitoring and interventions.

Inclusion in limited distribution drug network reduces time to dalfampridine access in patients with multiple sclerosis at a health-system specialty pharmacy

BACKGROUND: Dalfampridine improves walking speed in patients with multiple sclerosis (MS), but accessing specialty medications such as dalfampridine can be hindered by insurance restrictions, high costs, and limited distribution networks (LDNs) imposed by manufacturers. Some integrated health-systems specialty pharmacies (HSSPs) embed pharmacists in clinics and dispense medications from their internal pharmacies if included within the LDN. OBJECTIVE: To assess access to dalfampridine in patients at an HSSP before and after gaining admission to the LDN. METHODS: This study was conducted at Vanderbilt Specialty Pharmacy (VSP), an integrated HSSP at Vanderbilt University Medical Center (VUMC) with 2 clinical pharmacists embedded in the MS clinic. VSP gained access to the dalfampridine LDN on May 1, 2018, at which time the embedded pharmacists began to manage the comprehensive therapy initiation process. We performed a retrospective review of adult patients with MS who were prescribed dalfampridine from March 2010 to December 2018. Eligible prescriptions were new starts (no previous use) or restarts (after previous use and discontinuation). Prescriptions were classified as pre-VSP and post-VSP, which differentiates before and after VSP gained access to dispense dalfampridine. Study outcomes were insurance approval, initiation of therapy, and time from treatment decision to medication access. We used a proportional odds logistic regression model for time to medication access using the following covariates: pre-VSP versus post-VSP time period, insurance prior authorization (PA) denied versus approved/not needed, and baseline timed 25-foot walk. RESULTS: We included 262 patients and 290 prescriptions (260 pre-VSP and 30 post-VSP). In pre-VSP and post-VSP prescriptions, 97% were approved by insurance, and 93% of patients started therapy. Median time to medication access was 22 days (IQR = 11-45) for pre-VSP prescriptions and 1 day (IQR = 0-3) for post-VSP prescriptions. In the proportional odds logistic regression model, the odds of having a longer medication access time were significantly higher for pre-VSP prescriptions (OR = 83.219, P < 0.001) and prescriptions whose PA was initially denied (OR = 9.50, P < 0.001); 25-foot walk time was not significant (OR = 0.95, P = 0.277). CONCLUSIONS: After obtaining access to dispense dalfampridine, the time to access therapy was reduced, suggesting that LDNs delay patient access to therapy at HSSPs. DISCLOSURES: No funding was provided for this study. The authors have no conflicting interests to disclose. Preliminary results have been previously presented at the American Society of Health-Systems Pharmacy Midyear Meeting in December 2019, the Vanderbilt Health Systems Specialty Pharmacy Outcomes Research Summit in August 2020, and the National Association of Specialty Pharmacy Annual Meeting in September 2020.

Statistical considerations for medication adherence research

OBJECTIVE

Medication non-adherence is a widespread problem and has been known to be associated with worse health outcomes and increased healthcare costs. Although many measures of adherence have been developed, their usage is not consistent across studies. Furthermore, statistical methods for analyzing adherence measures have not been rigorously evaluated.

METHODS

Using Proportion of Days Covered (PDC), a commonly used adherence measure, we examine the variability inherent to study inclusion criteria and several variations of the PDC calculation method using a motivating data example. We illustrated via sensitivity analyses the potential for flawed inference when modeling PDC as an outcome measure. We also performed simulation studies to investigate the statistical properties of three statistical models: logistic regression, negative binomial, and ordinal logistic regression models.

RESULTS

Our sensitivity analysis showed that parameter estimates can vary greatly depending on the rules for determining the study end date in calculating PDC, or the minimum number of fills in defining the cohort. In simulation studies, logistic regression had lower power than ordinal logistic and negative binomial regression models. Naivete to treatment was an important predictor of adherence and omitting it from statistical models can lead to inflated type I errors.

CONCLUSIONS

We discourage dichotomizing adherence data as it results in low power. The negative binomial model offers advantages in modeling adherence data, as it avoids the problematic use of a ratio in regression models. The ordinal logistic regression is robust to distributional assumptions with greater power, but naivete to treatment should be adjusted to reserve type I error rate. We also provide a recommendation for defining the observation window in calculating PDC.

Assessing Pharmacists' Preferences towards Efficacy Attributes of Disease-Modifying Therapies in Relapsing-Remitting Multiple Sclerosis

Introduction: Hospital pharmacists are increasingly playing a critical role in the care of patients with multiple sclerosis (MS). However, little is known about their preferences and perspectives towards different attributes of disease-modifying therapies (DMTs). The objective of this research was to assess pharmacists´ preferences for DMT efficacy attributes. Methods: A multicenter, non-interventional, cross-sectional, web-based study was conducted. Preventing relapses, delaying disease progression, controlling radiological activity, and preserving health-related quality of life (HRQoL) and cognition were the attributes selected based on a literature review and a focus group with six hospital pharmacists. Conjoint analysis was used to determine preferences in eight hypothetical treatment scenarios, combining different levels of each attribute and ranking them from most to least preferred. Results: Sixty-five hospital pharmacists completed the study (mean age: 43.5 ± 7.8 years, 63.1% female, mean years of professional experience: 16.1 ± 7.4 years). Participants placed the greatest preference on delaying disease progression (35.7%) and preserving HRQoL (21.6%) and cognition (21.6%). Importance was consistent in all groups of pharmacists stratified according to demographic characteristics, experience, research background, and volume of patients seen per year. Conclusions: Understanding which treatment characteristics are meaningful to hospital pharmacists may help to enhance their synergistic role in the multidisciplinary management of patients with MS.

Factors associated with therapeutic inertia among pharmacists caring for people with multiple sclerosis

INTRODUCTION

Pharmacists play a critical role on therapeutic decisions in multiple sclerosis (MS) care. Therapeutic inertia (TI) is defined as the lack of treatment initiation or escalation when there was evidence of clinical and radiological disease activity. The aim of this study was to assess factors associated with TI among pharmacists involved in MS care.

METHODS

A multicenter, non-interventional, cross-sectional study involving hospital pharmacists in Spain was conducted. Participants answered questions regarding their standard practice, risk preferences, and management of nine simulated MS case-scenarios. We created a score defined as the number of case-scenarios that fit the TI criteria over the total number of presented cases (score range from 0-6). Similarly, an optimal treatment score (OTS) was created to determine the degree of appropriate pharmacological decisions (ranging from 0-lowest to 9-highest). Candidate predictors of TI included demographic data, practice setting, years of practice, MS expertise, number of MS patients managed at hospital/year, participation in MS clinical trials, and participants' risk preferences.

RESULTS

Overall, 65 pharmacists initiated and completed the study (response rate: 45.5%). The mean age was 43.5 ± 7.8 years and 67.1% were female. Forty-two (64.6%) participants had specialization in MS management. Overall, the mean TI score was 3.4 ± 1.1. Of 390 individual responses, 224 (57.4%) met the TI criteria. All participants failed to recommend treatment escalation in at least one of the six case-scenarios. The mean OTS was 4.1 ± 1.4. Of 585 individual responses, 264 (45.1%) met the optimal choice criteria. Only 40% of participants (23/65) made five or more optimal treatment choices. Lower experience in dispensing MS drugs and lack of specialization in MS were the most common factors associated with TI and optimal management. The multivariable analysis revealed that more years of experience (p = 0.03), being a co-author of a peer-reviewed publication (p = 0.03), and specialization in MS (p = 0.017) were associated with lower TI scores (adjusted R² = 0.23).

CONCLUSION

Therapeutic inertia was observed in all pharmacist participants, affecting over fifty percent of MS treatment choices. Continuing education and specialization in MS may facilitate therapeutic decisions in MS care.

An Integrated Health-System Specialty Pharmacy Model for Coordinating Transitions of Care: Specialty Medication Challenges and Specialty Pharmacist Opportunities

Adherence and persistence to specialty medications are necessary to achieve successful outcomes of costly therapies. The increasing use of specialty medications has exposed several unique barriers to certain specialty treatments' continuation. Integrated specialty pharmacy teams facilitate transitions in sites of care, between different provider types, among prescribed specialty medications, and during financial coverage changes. We review obstacles encountered within these types of transitions and the role of the specialty pharmacist in overcoming these obstacles. Case examples for each type of specialty transition provide insight into the unique complexities faced by patients, and shed light on pharmacists' vital role in patient care. This insightful and real-world experience is needed to facilitate best practices in specialty care, particularly in the growing number of health-system specialty pharmacies.