Provision of clinical pharmacist services for individuals with chronic hepatitis C viral infection: Joint Opinion of the GI/Liver/Nutrition and Infectious Diseases Practice and Research Networks of the American College of Clinical Pharmacy

A National Survey of Pharmacist Involvement in Hepatitis C Virus Management in the United States

Models estimate that the United States will not meet its 2030 hepatitis C virus (HCV) elimination goal. Engagement of healthcare providers including pharmacists is critical for HCV elimination efforts. We aimed to characterise the involvement of pharmacists in HCV management. The study design was a cross-sectional survey. Investigators sent the questionnaire to pharmacy and HCV organisations' listservs and limited responses to licensed pharmacists with direct patient care. Questions assessed setting, HCV screening, prescribing, and management; and opinions, and perceived barriers and facilitators to pharmacists' HCV management. Two hundred and nine survey respondents across 45 states reported managing 24 patients/month, with 5.3 (±4.4) years' experience in HCV, and identified pharmacist-managed HCV at their site since 2013 (±5.8 years). Most practice at academic medical centres (29%, 58/203) under collaborative practice agreements (67%, 127/189), as ambulatory care pharmacists (70%, 131/187), in primary care (50%, 65/131). Many pharmacists provide screening, linkage to care, and/or referral (81%, 157/194); 99.5% (190/191) perform treatment evaluation and selection; 98% (180/183) provide treatment education, 93% (171/183) initiate treatment, and 90% (162/180) provide on- and/or post-treatment monitoring. Respondents indicated collaboration with prescribers as most helpful in their role in HCV management, whereas lack of reimbursement was a main barrier. Satisfying components include HCV cure, care and education provision; frustrations include socioeconomic factors impeding patients' follow-up and prior authorisations/insurance barriers. Survey results show the variety of pharmacists' roles in direct HCV patient care and may be used to increase other providers' awareness of pharmacists' services and contributions to HCV elimination efforts.

A cross-sectional survey of viral hepatitis education within pharmacy curricula in the United States

BACKGROUND

The Viral Hepatitis National Strategic Plan emphasizes the importance of a collaborative provider workforce trained in hepatitis prevention and treatment to eliminate viral hepatitis in the United States by 2030. Although pharmacists play a key role in hepatitis management, literature lacks documentation of the amount of viral hepatitis education provided to pharmacy students.

AIM

Our study goal was to describe viral hepatitis education provided at United States pharmacy schools.

METHOD

In this cross-sectional survey study, investigators developed a 19-item Qualtrics questionnaire, sent questionnaire links to curricula content experts at 140 accredited pharmacy colleges/schools in May-June 2022, and allotted 28 days for completion. Questions assessed the viral hepatitis instruction provided to students and hepatitis instructors' training/experience. We used descriptive statistics for analysis.

RESULTS

Forty-eight pharmacy institutions across 29 states/territories responded; 44% had 50-99 students/class, and 58% used lecture and discussion to provide required hepatitis education. Students received more lecture (average = 3.4 h, range 0.8-1.6 h/hepatitis topic) than discussion (average = 1.7 h, range 0.6-0.9 h/hepatitis topic), with the most time spent on hepatitis C, followed by hepatitis B virus. Respondents reported 93% of their instructors had post-graduate training/certifications and 67% worked in clinical settings with hepatitis patients.

CONCLUSION

Survey results demonstrate variability in hepatitis education across United States pharmacy curricula. Data offer stakeholders in hepatitis elimination efforts knowledge about the viral hepatitis education provided to Doctor of Pharmacy students. Future directions include consideration of implementation of minimum hepatitis education standards to further support work toward national hepatitis elimination.

Outcomes of a Pharmacist-Led Hepatitis C Virus Treatment Program in an Urban Safety-Net Health System, Chicago, 2017-2019

OBJECTIVE

A recommendation in March 2020 to expand hepatitis C virus (HCV) screening to all adults in the United States will likely increase the need for HCV treatment programs and guidance on how to provide this service for diverse populations. We evaluated a pharmacist-led HCV treatment program within a routine screening program in an urban safety-net health system in Chicago, Illinois.

METHODS

We collected data on all patient treatment applications submitted from January 1, 2017, through June 30, 2019, and assessed outcomes of and patient retention in the treatment cascade.

RESULTS

During the study period, 203 HCV treatment applications were submitted for 187 patients (>1 application could be submitted per patient): 49% (n = 91) were aged 55-64, 62% (n = 116) were male, 67% (n = 125) were Black, and 15% (n = 28) were Hispanic. Of the 203 HCV treatment applications, 87% (n = 176) of patients were approved for treatment, 91% (n = 161) of whom completed treatment. Of the 161 patients who completed treatment, 81% (n = 131) attended their sustained virologic response (SVR) follow-up visit, 98% (n = 129) of whom reached SVR. The largest drop in the treatment cascade was the 19% decline from receipt of treatment to SVR follow-up visit.

CONCLUSION

The pharmacist-led model for HCV treatment was effective in navigating patients through the treatment cascade and achieving SVR. Widespread implementation of pharmacist-led HCV treatment models may help to hasten progress toward 2030 HCV elimination goals.

Influence of drug-drug interactions on effectiveness and safety of direct-acting antivirals against hepatitis C virus

OBJECTIVES

Direct-acting antivirals are the recommended treatment for hepatitis C-infected patients. Drug-drug interactions with concomitant treatments can cause lack of effectiveness and/or safety. The objective of this study is to characterise drug-drug interactions of direct-acting antivirals and to analyse their influence both on the effectiveness of antiviral treatment and on the overall safety of pharmacological treatment in hepatitis C-infected patients.

METHODS

Observational and prospective cohort study for 3 years in the pharmaceutical care outpatient consultation of a general hospital, undertaking detection, evaluation and management of drug-drug interactions by clinical pharmacists and physicians. The main outcome measures were sustained virologic response at week 12 for effectiveness and serious drug-related adverse events for safety. Multivariate statistical analysis applied to: (a) patient basal characteristics related to presence of drug-drug interactions; (b) previous antiviral treatments, viral genotype, cirrhosis, decompensations and presence of drug-drug interactions related to the effectiveness of direct-acting antivirals.

RESULTS

Of a total of 1092 patients, the majority of them were men, around 60 years old and HCV-genotype 1 mono-infected, with a high basal viral load, naive to antiviral treatment, treated with ledipasvir/sofosbuvir and without cirrhosis. 24.5% had drug-drug interactions. Proton pump inhibitors were the concomitant drugs that caused the most drug-drug interactions. Age ≥65 years and direct-acting antivirals based on protease inhibitors were independently related to the presence of drug-drug interactions (p≤0.012). All (100%) of the therapeutic recommendations based on detected drug-drug interactions were implemented; 97.7% of patients with interactions versus 99.0% without them reached sustained virologic failure (p=0.109). The serious adverse events rates were 1.5% and 1.3% in patients with and without drug-drug interactions, respectively (p=0.841).

CONCLUSIONS

Drug-drug interactions are frequent among hepatitis C-infected patients receiving treatment with direct-acting antivirals. However, the collaboration between physicians and clinical pharmacists makes it possible to detect, evaluate, avoid or clinically manage these drug-drug interactions, in order to maintain whole treatment therapeutic safety and the effectiveness of direct-acting antivirals.

Drug-drug interactions between direct-acting antivirals and statins in the treatment of chronic hepatitis C

As the first line of treatment for hepatitis C virus (HCV) infection, direct-acting antivirals (DAAs) have greater efficacy and fewer adverse effects than other treatments; however, drug-drug interactions (DDIs) must be avoided when used in combination with other medications, such as statins. HCV patients are mostly in the need for polypharmacy, particularly the comedication of DAAs and cardiovascular drugs such as statins. This poses a risk of pharmacokinetic interactions between the two classes of drugs that may lead to severe myopathy or even rhabdomyolysis. Therefore, evaluating the severity of the DDIs and managing them is important. A multidisciplinary team-based model of care for HCV patients receiving DAAs can review the pharmacology profiles of other drugs for relevant DDIs with the DAAs, before prescription. Such a model can also follow the patients through the therapeutic cycle to make sure that their medical regimen is safe and effective. This article reviews the comedication rate and DDI-prevalence in HCV patients receiving statins along with the DAAs, details the mechanisms involved, gives recommendations for management, and shares our experience with a multidisciplinary team-based care program for the treatment of HCV patients.

Medication safety in patients with hepatic impairment: A survey of community pharmacists' knowledge level and their practice in caring for these patients

Aims

To study community pharmacists' level of knowledge on medication safety in patients with hepatic impairment and their practice in caring for these patients.

Methods

Pharmacists from Dutch community pharmacies (n = 1545) were invited to participate in an online survey. The survey consisted of 27 questions covering 2 main topics: knowledge and current practice. The level of knowledge was measured by a 6‐item knowledge test. Multiple linear regression was used to identify predictors of correctly answered responses.

Results

In total, 338 pharmacists (22%) completed the questionnaire. The mean knowledge score was 2.8 (standard deviation 1.6). Only 30.3% of respondents were able to appropriately advise on use of analgesics in severe cirrhosis. Postgraduate education on hepatic impairment, knowledge of recently developed practical guidance, and fewer years of practice were associated with a higher level of knowledge. In total, 70.4% indicated to evaluate medication safety in a patient with hepatic impairment at least once weekly. In the past 6 months, 83.3% of respondents consulted a prescriber about a patient with hepatic impairment. Frequently encountered barriers in practice were insufficient knowledge on the topic and a lack of essential patient information (i.e. diagnosis and severity of the impairment).

Conclusion

Community pharmacists regularly evaluate the safety of medication in patients with hepatic impairment, yet their level of knowledge was insufficient and additional education is needed. Pharmacists experienced several difficulties in providing pharmaceutical care. If these issues are resolved, pharmacists can play a more active role in ensuring medication safety in their patients with hepatic impairment.

Prevalence of the potential drug-drug interactions between pangenotypic direct-acting antivirals and the concomitant medications associated with patients with chronic hepatitis C virus infection in Spain

OBJECTIVE

To determine the comorbidity and potential for drug-drug interactions (DDIs) among pangenotypic direct-acting-antivirals (pDAAs) and the concomitant medications associated with chronic hepatitis C (CHC) patients in routine clinical practice in Spain.

METHODS

Retrospective observational study. Included patients were ≥18 years, diagnosed with CHC, on antiviral treatment and required medical attention during 2017. Two groups were differentiated according to age ranges (<50 and ≥50 years). The variables collected were: age, gender, general/specific comorbidity, concomitant medication and potential DDIs (www.hep-druginteractions.org). The pDAAs analysed were: a) Sofosbuvir/Velpatasvir (SOF/VEL), b) Glecaprevir/Pibrentasvir (GLE/PIB) and c) Sofosbuvir/Velpatasvir/Voxilaprevir (SOF/VEL/VOX). Bivariate statistical analysis, P<.05.

RESULTS

3,430 patients with a mean age of 56.9 years and 60.3% males were enrolled. The average Charlson index was 0.8. Age range distribution: 18-49 years (28.9%) and ≥50 years (71.1%). The average number of medications per patient/year was 3.1 (SD 2.6). The total percentage of potential DDIs was: 8.6% minor DDIs, 40.5% clinically significant DDIs and 10.0% contraindicated medication. These DDIs were greater in patients ≥50 years (8.6%, 43.8% and 12.4%, respectively, P<.001). For all ages, SOF/VEL showed a lower percentage of: minor interactions (1.3% vs. 6.6% and 5.9%, P<.001); clinically significant interactions (53.4%, vs. 77.4% and 66.3%, P<.001) and contraindicated medication (1.7% vs. 8.3% and 10.7%, P<.001) compared to GLE/PIB and SOF/VEL/VOX, respectively.

CONCLUSIONS

Patients with CHC present high comorbidity and concomitant medication use, particularly elderly patients, thus implying a greater exposure to potential DDIs. Although the DDI rate was considerable with the three combinations analysed, SOF/VEL showed a lower number of clinically significant interactions.

Expanding Hepatitis C Virus Care and Cure: National Experience Using a Clinical Pharmacist-Driven Model

Background

The US National Viral Hepatitis Action Plan depends on additional providers to expand hepatitis C virus (HCV) treatment capacity in order to achieve elimination goals. Clinical pharmacists manage treatment and medication within interdisciplinary teams. The study’s objective was to determine sustained virologic response (SVR) rates for clinical pharmacist–delivered HCV therapy in an open medical system.

Methods

Investigators conducted a multicenter retrospective cohort study of patients initiating direct-acting antivirals from January 1, 2014, through March 12, 2018. Data included demographics, comorbidities, treatment, and clinical outcomes. The primary outcome of SVR was determined for patients initiating (intent-to-treat) and those who completed (per-protocol) treatment. Chi-square tests were conducted to identify associations between SVR and adverse reactions, drug–drug interactions, and adherence.

Results

A total of 1253 patients initiated treatment; 95 were lost to follow-up, and 24 discontinued therapy. SVR rates were 95.1% (1079/1134) per protocol and 86.1% (1079/1253) intent to treat. The mean age (SD) was 57.4 (10.1) years, the mean body mass index (SD) was 28.7 (6.2) kg/m², 63.9% were male, 53.7% were black, 40.3% were cirrhotic, 88.4% were genotype 1, and 81.6% were treatment-naïve. Patients missing ≥1 dose had an SVR of 74.9%; full adherence yielded 90% (P < .0001).

Conclusions

HCV treatment by clinical pharmacists in an open medical system resulted in high SVR rates comparable to real-world studies with specialists and nonspecialists. These findings demonstrate the success of a clinical pharmacist–delivered method for HCV treatment expansion and elimination.

Improving patient access to hepatitis C antiviral medicines in Switzerland: Understanding the financial risks for community pharmacies

RATIONALE

As observed in other countries, some patients may experiment difficulties in obtaining their hepatitis C antiviral medicines (HCVm) in Swiss community pharmacies. There is a lack of data related to access to HCVm at the patient level and notably related to the potential financial risks for the community pharmacies.

AIMS

(a) To evaluate the potential financial risks for community pharmacist associated with the delivery of HCVm in the Swiss healthcare system; (b) to explore the attitudes and experiences of community pharmacists related to these risks and their consequences for the patients.

METHOD

A three-step approach was chosen as follows: (a) estimation of costs, incomes, and gross financial results directly related to 3-month treatment with Harvoni based on the drug delivery process (data from 68 patients over 2 years); (b) sensitivity analyses; (c) exploration of local community pharmacists' attitudes and experiences related to the delivery of HCVm in the canton of Vaud (Western Switzerland).

RESULTS

Two main risks were identified: (a) Incomes do not always cover costs; (b) reimbursement issues could lead to an increase in the requirement for working capital. According to the survey, 23% (14/60) of pharmacies refused to deliver HCVm to at least one patient, and these patients had to find a solution mostly on their own.

CONCLUSIONS

The scenario analysis clarifies the causes of the possible refusal to deliver HCVm. With the growing number of high-priced medicines, the healthcare systems should have a clear strategy to encourage their delivery by community pharmacies by ensuring seamless and collaborative care for patients. The community pharmacists could be accountable to provide such services-if they get the education, training, and remuneration.

Implementation of a pharmaceutical care program for patients with hepatitis C treated with new direct-action antivirals

Background A pharmaceutical care program is necessary to improve the management of direct-acting antivirals in hepatitis C. Objective Describe health outcomes obtained with the implementation of a pharmaceutical care program in Hepatitis C patients treated with direct-acting antivirals. Setting This study was performed in a pharmacy department of a university hospital. Methods Retrospective study between 1st-April 2015 and 28st-February 2016. Hospital pharmacists implemented interventional measures for validation of antivirals prescriptions, detection of drug-interaction, adverse drug events, education and patient´s adherence to antiviral regimen. Main outcome measure Health and quality outcomes of the implementation of the pharmaceutical care program. Results A total 128 patients were enrolled. The overall sustained virologic response at week 12 post-treatment rate was 96.1% (95% CI 92.7-99.5). Adverse drug events occurred in 90.6% of the patients, and the majority were grade 1-2. Pharmacists made 334 pharmaceutical interventions. 35.5% of these interventions were aimed to resolve negative results of drugs. 80.9% of the negative results of drugs improved or were eliminated with the application of the measures proposed by the pharmacists (p ≤ 0.001). Pharmacists carried out 175 preventive interventions to avoid negative results of drugs. 97.3% of these interventions were accepted and managed to prevent the appearance of negative results of drugs (p = 0.453). Conclusion The implementation of a pharmaceutical care program in patients with hepatitis C treated with direct-acting antivirals has improved the safety in the use of these drugs.

The benefits of a public pharmacist service in chronic hepattis C treatment: The real-life results of sofosbuvir-based therapy

BACKGROUND

In Brazil, the sofosbuvir-based therapy was introduced in the public health system (SUS) in 2015 to treat Chronic Hepatitis C (CHC). This drug and other direct-acting antiviral agents (DAAs) represent a major advance in the HCV-infection treatment due to their high effectiveness and tolerability. However, the drug safety profile is limited by significant drug interactions and its use is restricted for their high cost. Pharmacists have the opportunity to improve patient care by monitoring the therapy, recommending strategies to guarantee treatment adherence, effectiveness and safety, preventing complications of the disease, and drug-related problems, thus reducing the cost for patients and payers.

OBJECTIVE

This study aimed to assess the results of the one of the first patient group treated with sofosbuvir in Brazil and their opinions about the benefits of clinical pharmacist services in the achievement of the cure for CHC and in the management of their therapy difficulties.

METHODS

This cohort study (November 2015-January 2017) enrolled 240 patients followed up by the clinical pharmacists at the University Pharmacy (UPh) of the Federal University of Santa Catarina, Brazil, during the CHC treatment. The therapeutic schemes used were sofosbuvir + daclatasvir or + simeprevir associated or not with ribavirin. At the end of the therapy, the patients provided qualitative feedback about the clinical pharmacist services.

RESULTS

The study demonstrated high levels of treatment adherence (99.2% of completion rates) and effectiveness rates (Sustained Virological Response rates) (92.1%). Patients reported high levels of satisfaction with the care provided on account of the good rapport built with their pharmacist, the counseling and education on HCV-infection and on sofosbuvir-based therapy utilization, motivation for adherence, and convenient access to the pharmacist.

CONCLUSIONS

The clinical pharmacist services provided by the UPh was beneficial to patients treated for CHC with the sofosbuvir-based therapy.

A Bitter Pill to Swallow: Why Medication Safety Is Critical in Hepatitis C Treatment

PURPOSE

To provide medication safety tips to optimize the management of patients receiving treatment for chronic hepatitis C virus (HCV) infection.

SUMMARY

Ensuring safe medication use in patients who receive treatment for HCV infection is a crucial component in providing optimal patient care. Because of the complexity of available treatment options, numerous challenges exist in preventing medication errors with HCV therapies. This article will focus on the selection of appropriate treatment options along with proper dosing and duration, awareness of concomitant disease states and drug interactions, identifying adverse drug reactions (ADRs) and patient counseling points, the provision of adherence counseling and prevention of treatment interruptions, improving communication with patients and between pharmacies, and recognizing the importance of a multidisciplinary approach.

CONCLUSION

Maintaining awareness of medication safety strategies geared toward HCV pharmacotherapy is critical for providing optimal care for patients while minimizing the opportunity for errors.

Sustained Virologic Response and Costs Associated with Direct-Acting Antivirals for Chronic Hepatitis C Infection in Oklahoma Medicaid

BACKGROUND

Outcomes involving newer direct-acting antiviral (DAA) hepatitis C virus (HCV) regimens have not been studied extensively among the Medicaid population.

OBJECTIVE

To assess clinical (treatment failure) and economic outcomes for chronic HCV-infected Oklahoma Medicaid members following treatment with DAAs and to measure associations with patient, treatment, and clinical characteristics.

METHODS

This cross-sectional study used Oklahoma Medicaid pharmacy and medical claims data for adult members who used a newer DAA agent and had reported a successful or failed sustained virological response rate 12 weeks after therapy completion (SVR12) from January 1, 2014, to June 30, 2016. Multivariable logistic and gamma regressions assessed predictors of SVR12 failure and costs controlling for member demographics (i.e., age, sex, race, rural residence); type of DAA and adherence; clinical characteristics (e.g., comorbid conditions, advanced liver disease); and the implementation of changes to a prior authorization program.

RESULTS

Of 934 Medicaid members eligible for treatment with DAAs between January 1, 2014, and June 30, 2016, 906 received DAA treatment, 40.6% (368/906) had reported SVR12 outcomes, and 59.4% (n = 538) did not have a reported SVR recorded. Of those with reported SVR12 outcomes, patients were 53.1 ± 9.7 years of age, 51.1% were male, 8.4% had SVR12 failure, and each member had mean costs of $140,283 ± $52,779. Multivariable analyses indicated higher odds of SVR12 failure was independently associated with cirrhosis (OR [decompensated] = 6.69 and OR [compensated] = 3.52, P < 0.001), while males had higher odds of failure than females (OR = 3.34, P < 0.010). No significant difference in SVR12 failure was noted, according to DAA type or a medication adherence threshold of > 95%. Ledipasvir/sofosbuvir was independently associated with lower costs (exp[b] = 0.81; P < 0.001) compared with sofosbuvir, while higher costs were associated with decompensated cirrhosis (exp[b] = 1.22; P < 0.001) and treatment failure (exp[b] = 1.18, P < 0.010). In an analysis including members without reported SVR12 outcomes, decompensated and compensated cirrhosis had lower odds (P < 0.001) of no reported SVR12 from ambulatory clinic settings.

CONCLUSIONS

Almost 60% of Medicaid members receiving DAA treatment did not have a final reported SVR12 outcome. Among those with viral load measurements, treatment success was high and both decompensated and compensated cirrhosis were independently associated with significantly higher odds of treatment failure. Addressing a loss to follow-up among HCV patients and curtailing the development of cirrhosis to improve treatment success may warrant interventions that improve access to care and remove barriers that impede treatment initiation and completion.

DISCLOSURES

No outside funding supported this study. Pham, Keast, Holderread, Nesser, and Skrepnek disclose either employment by the Oklahoma Health Care Authority or contractual work for this employer. Pham discloses fellowship funding from Purdue Pharma unrelated to this study. Keast and Skrepnek disclose research grant funding from Gilead Sciences and Abbvie. Holderread also reports grant funding from Gilead Sciences and fees from PRIME Education. Thompson, Farmer, and Rathbun have nothing to disclose.

Role of a clinical pharmacist as part of a multidisciplinary care team in the treatment of HCV in patients living with HIV/HCV coinfection

Background

The objective of the study was to evaluate the role of a clinical pharmacist in hepatitis C virus (HCV) treatment of patients living with HIV/HCV coinfection.

Methods

We conducted a descriptive study to quantify the functions of a clinical pharmacist in HCV treatment of patients living with HIV/HCV coinfection who were initiating HCV treatment at a publicly funded clinic between March 18, 2015 and September 15, 2016. The clinical pharmacist’s role was categorized into eight categories: 1) HCV prior authorization (PA) completion; 2) HCV medication adherence counseling; 3) HCV drug-drug interaction (DDI) counseling and screening; 4) HCV medication counseling regarding common adverse events (AEs); 5) HCV counseling regarding HCV treatment outcomes and risk of reinfection; 6) ordering laboratory tests and interpretation of HCV laboratory values; 7) HIV medication AE assessment; and 8) other (including refilling medications and management of other comorbidities).

Results

One hundred and thirty-five patients initiated treatment during this timeframe: 77.0% were males, 56.3% non-cirrhotic, 77.0% HCV treatment-naïve, 45.9% HCV genotype 1a, and 83.0% initiated on ledipasvir/sofosbuvir. The clinical pharmacist completed 150 PAs, counseled on HCV medication adherence in 79.2% of patients, conducted HCV DDI counseling and screening in 54.2%, and monitored HCV medication AEs in 54.2%. The clinical pharmacist counseled patients on HCV treatment outcomes and risk of reinfection in 53.1%, ordered laboratory tests in 44.8%, and reported and interpreted laboratory values in 44.8%. The clinical pharmacist assessed HIV medication AEs in 54.2% of patients and participated in other activities in 42.7%.

Conclusion

A clinical pharmacist’s expertise as part of a multidisciplinary care team facilitates optimal treatment outcomes and provides critical support in the management of DAA therapy in individuals living with HIV/HCV coinfection.

Incidence of Drug Interactions Identified by Clinical Pharmacists in Veterans Initiating Treatment for Chronic Hepatitis C Infection

BACKGROUND

Many direct-acting antivirals (DAAs) have drug-drug interactions (DDIs) with the potential to affect efficacy and safety.

OBJECTIVE

To describe the incidence and severity of DDIs with DAAs identified by the hepatitis C virus (HCV) clinical pharmacist within a Veterans Affairs health care system.

METHODS

This single-center, retrospective cohort study evaluated patients with HCV treated with DAA therapy. Primary end points included the total number of identified DDIs, percentage of patients with at least 1 DDI, mean number of DDIs per patient, and the number of DDIs by severity category. Additional end points included characterization of interacting drugs, clinical consequence of interaction, intervention recommended, acceptance rate of actionable recommendations, and achievement of sustained virological response 12 weeks after treatment (SVR12).

RESULTS

A total of 300 patients were included. There were 554 identified DDIs, and 80.3% of patients had at least 1 DDI, with an average of 1.85 DDIs per patient; 76% of the DDIs identified were categorized as either a potentially clinically significant or critical interaction. The most common DDIs involved acid suppression agents (20%). Patient monitoring was the most commonly recommended intervention (59%), followed by dose modification of the interacting medication (30%). There was no difference in SVR12 between patients with at least 1 DDI compared with those with no DDIs (94.8% vs 95.8%; P = 0.73). There were a total of 227 actionable recommendations, with an acceptance rate of 84.1%.

CONCLUSIONS

This study suggests that DDIs are prevalent among patients treated with DAAs for HCV. A HCV clinical pharmacist can help optimize patient care by identifying DDIs and recommending interventions to providers.

Comorbidity, concomitant medication, use of resources and healthcare costs associated with chronic hepatitis C virus carriers in Spain

OBJECTIVES

To assess the comorbidity, concomitant medications, healthcare resource use and healthcare costs of chronic hepatitis C virus patients in the Spanish population.

PATIENTS AND METHODS

Retrospective, observational, non-interventional study. Patients included were≥18 years of age who accessed medical care between 2010-2013. Patients were divided into 2 groups based on the presence or absence of liver cirrhosis. The follow-up period was 12 months. Main assessment criteria included general comorbidity level (determined by the resource utilisation band score) and prevalence of specific comorbidities, concomitant medications, healthcare resource use and healthcare costs. Statistical analysis was performed using regression models and ANCOVA, P<.05.

RESULTS

One thousand fifty-five patients were enrolled, the mean age was 57.9 years and 55.5% were male. A percentage of 43.5 of patients had a moderate level of comorbidity according to the resource utilisation band score. The mean time from diagnosis was 18.1 years and 7.5% of the patients died during the follow-up period. The most common comorbidities were dyslipidaemia (40.3%), hypertension (40.1%) and generalised pain (38.1%). Cirrhosis was associated with cardiovascular events (OR 3.8), organ failures (OR 2.2), alcoholism (OR 2.1), diabetes (OR 1.2) and age (OR 1.2); P<.05. The most commonly used medications were anti-infectives (67.8%) and nervous system medications (66.8%). The mean total cost per patient was 3,198€ (71.5% healthcare costs, 28.5% indirect/non-healthcare costs). In the corrected model, the total costs per patient-year were 2,211€ for those without cirrhosis and 7,641€ for patients with cirrhosis; P<.001.

CONCLUSIONS

Chronic hepatitis C virus patients are associated with a high level of comorbidity and the use of concomitant medications, especially in patients with liver cirrhosis. Chronic hepatitis C virus infection represents a substantial economic burden on the Spanish National Health System.

Improving patient access to hepatitis C virus treatment

OBJECTIVES

To discuss the current barriers to hepatitis C virus (HCV) treatment; to provide information and resources to assist health care providers with the prior authorization process; to provide resources for potential access to medications if a patient's third-party payer may not be an option; and to discuss the pharmacist's vital role as a patient advocate and considerations once medications are approved.

SUMMARY

Access to HCV medications is often restricted by third-party payers. Pharmacists are poised to fill an immediate need and assist with providing the necessary clinical evidence to gain access to HCV medications and advocate on the patient's behalf. Once approval for HCV treatment has been obtained, considerations must be given to procurement of therapy, refills, monitoring, and avoid interruptions in therapy.

CONCLUSION

The assistance of a pharmacist should be sought to overcome barriers related to medication access. Once therapy has been obtained, the pharmacist can assist the entire patient care team to ensure timely refills, appropriate monitoring, tolerability of therapy, and continued medication access.

Validation of a questionnaire to monitor symptoms in HIV-infected patients during hepatitis C treatment

Background

Clinicians are incorporating patient-reported outcomes in the management of HIV-infected persons co-infected with hepatitis C virus (HCV), but there are no validated inventories to monitor symptoms of patients during HCV therapy.

Design

Five-year retrospective cohort analysis of persons living with HIV (PLWH) treated for HCV.

Methods

The HCV symptom-inventory (HCV-SI) was administered before, during, and after HCV treatment. Discriminant validity was assessed, separately, in mixed model linear regression of HCV-SI T-scores on treatment regimens (pegylated-interferon and ribavirin; pegylated-interferon, ribavirin, and telaprevir; and interferon-free antivirals); and side effect-related premature treatment discontinuation (SE-DC).

Results

From the 103 patients who completed the HCV-SI, 7% were female, 26% non-white, 32% cirrhotics and 91% had undetectable HIV viral loads. Most had genotype 1 (83%) and were HCV treatment-naïve (78%). We treated 19% of patients with pegylated-interferon and ribavirin, 22% with pegylated-interferon, ribavirin, and telaprevir and 59% received interferon-free antivirals. Overall, 77% achieved a sustained virologic response, and 6% discontinued HCV treatment due to side effects. In the treatment discrimination model, compared to the no treatment period, HCV-SI scores were significantly (p < 0.01) lower for interferon-free antivirals and higher for interferon-containing regimens. In the SE-DC model, the total HCV-SI, somatic and neuropsychiatric scores significantly predicted those patients who prematurely discontinued HCV treatment (P < 0.05).

Conclusions

The HCV-SI effectively differentiated among treatment regimens known to vary by side effect profiles and between patients with and without treatment discontinuation due to side effects. The HCV-SI may have value as a patient-reported outcome instrument predicting the risk of HCV treatment discontinuation.

Electronic supplementary material

The online version of this article (doi:10.1186/s12981-017-0182-7) contains supplementary material, which is available to authorized users.

Overview of Comprehensive Hepatitis C Virus Medication Management in a State Medicaid Program

BACKGROUND

Breakthrough direct-acting antivirals set a new standard in the management of hepatitis C virus (HCV) with regard to cure rates and improved tolerability; however, the health care system is challenged by the cost of these medications.

OBJECTIVE

To describe the effect of a comprehensive HCV medication management program on optimized regimen use, prior authorization (PA) modifications, and medication cost avoidance in a state Medicaid program.

METHODS

This program consists of a 2-tiered prescriber outreach: (1) regimen outreach to promote optimized regimen selection and (2) refill outreach to support medication adherence. PA criteria were developed to identify optimized regimens, taking into account member- and virus-specific factors as well as cost. Prescriber outreach was conducted to recommend the use of an optimized regimen as applicable. Successful regimen outreach was defined as the number of members for whom a recommendation was accepted. A refill report identified members without a subsequent paid HCV medication claim within 25 days of the previous claim and outreach to the prescriber's office was performed. The outcome measure for refill outreach was the number and type of PA modifications made secondary to outreach (closure or extension). Cost avoidance was calculated for members who completed treatment with an optimized regimen. Return on investment (ROI) was calculated for the program.

RESULTS

Between December 18, 2013, and January 31, 2015, 911 members had PA requests approved for simeprevir, sofosbuvir, or ledipasvir/ sofosbuvir. Of these members, 223 (24.5%) met the criteria for regimen outreach. Pharmacist interventions to treat with an optimized regimen were accepted for 135 members (60.5%). Following implementation of prescriber outreach to promote refills, between March 10, 2014, and January 31, 2015, offices were informed of an upcoming refill for 515 members. As a result of outreach, 19.6% of members had a subsequent PA modification. Sixty-nine approved PAs (for 68 members) were closed after correspondence with the prescriber, and 33 approved PAs (for 33 members) were extended. The total projected cost avoidance was $3,770,097. The comprehensive HCV medication management program demonstrated an ROI of $10.28 for every $1 spent.

CONCLUSIONS

A comprehensive HCV medication management program can help contain costs while ensuring that members have access to most clinically appropriate regimens.

DISCLOSURES

No outside funding supported this study. Lavitas reports personal fees and nonfinancial support from University of Tennessee, Advanced Studies in Medicine and grant funding from Bristol-Myers Squibb, outside the submitted work. All other authors report no conflicts of interest. The poster "Overview of a Hepatitis C Medication Monitoring Program in a State Medicaid Program" was presented October 8, 2014, by Lavitas at the AMCP Nexus 2014 meeting in Boston, Massachusetts. A program update was presented at the 2015 American Drug Utilization Review Society Meeting on February 27, 2015. Study concept and design were contributed by Price, Lenz, and Jeffrey, with assistance from Lavitas, Tesell, and Hydery. Lavitas, Tesell, and Hydery collected the data, assisted by Price, Lenz, and Jeffrey, and data interpretation was performed by all authors. The manuscript was written by Greenwood, Lavitas, Tesell, and Hydery, with assistance from the other authors, and was revised by all authors.

Effectiveness of ledipasvir/sofosbuvir in real-world patients with chronic hepatitis C: a collaborative treatment approach

The effectiveness of ledipasvir/sofosbuvir (LDV/SOF) in routine use in clinical practice for the management of chronic hepatitis C virus (HCV) has not been well described. Data with prior agents suggest that management of HCV using an interprofessional approach in clinical practice is associated with better outcomes. This single-centre, prospective, observational cohort study evaluated patients treated with LDV/SOF for 8, 12 or 24 weeks as part of the standardized interprofessional treatment protocol at Novant Health Infectious Diseases Specialists. Eighty-four patients treated with LDV/SOF were evaluated; of these, 97.5% and 91.7% of patients achieved a sustained virological response (SVR) in the per-protocol analysis and the intention-to-treat analysis, respectively. Two patients were not cured after relapse of HCV. No patients required LDV/SOF discontinuation and all patients completed the appropriate treatment duration. The majority (56%) of patients reported no adverse effects and all adverse effects that were reported were mild. The most commonly reported adverse effects were headache and fatigue. SVR and tolerability rates were similar to those seen in the clinical trials. LDV/SOF was associated with a successful translation from the clinical trial setting to clinical practice. A collaborative treatment approach should be considered in the management of HCV.

Pharmacist engagement within a hepatitis C ambulatory care clinic in the era of a treatment revolution

OBJECTIVES

To describe an innovative hepatitis C virus (HCV) care program and treatment outcomes resulting from pharmacist services.

SETTING

Adult ambulatory care HCV clinic within the Miami Veteran Affairs Healthcare System.

PRACTICE DESCRIPTION

Pharmacists with limited prescriptive authority are integrated into a medical hepatology care team.

PRACTICE INNOVATION

Pharmacists screen patients with HCV infection for treatment eligibility, counsel patients upon treatment initiation, assess ongoing treatment success and toxicity through patient appointments, telephone calls, and the ordering of pertinent laboratory data, and provide oversight of all patients on HCV therapies. Treatment outcomes are reported to the institutional Antimicrobial Stewardship Program.

EVALUATION

Data produced from a continuous quality assurance initiative were utilized. Descriptive statistics were used to present data.

RESULTS

From January 2014 through September 2015 there were 1619 pharmacist encounters for 532 unique patients and 597 screenings (including 578 approvals) were completed by a pharmacist. During this time 555 patients were initiated on at least 1 HCV treatment course, with 565 total treatment courses initiated. As new agents became available for use, fluctuation in regimen selection was seen. The most commonly prescribed medications were sofosbuvir (46%), ledipasvir/sofosbuvir (37%), and simeprevir (33%). Of the 565 HCV treatment courses initiated, 360 were completed, 29 were stopped early during treatment, and 176 were ongoing. Of the 360 completed courses, 249 had sustained virologic response at week 12 results available, of which 225 (90%) achieved treatment success and 24 (10%) relapsed. Of the 29 courses stopped early, 11 were due to poor medication adherence and 8 were due to adverse drug reaction.

CONCLUSION

Through a structured process employing a scope of practice, pharmacists can extend the capacity of medical hepatology providers and provide pharmacotherapy services to enhance care. Information provided here may serve beneficial to others looking to initiate or expand existing HCV pharmacist services.

Therapeutic Advances in HCV Genotype 1 Infection: Insights from the Society of Infectious Diseases Pharmacists

Hepatitis C virus (HCV) is the most common blood-borne infection in the United States. The high morbidity and mortality due to untreated infection have prompted updated screening recommendations that now include one-time HCV screening for all patients born between 1945 and 1965, in addition to risk factor-based screening. Current guidelines recommend treatment for all patients with chronic HCV. Treatment for HCV genotype 1 has evolved dramatically since the approval of the direct-acting antivirals. The approval of ledipasvir-sofosbuvir, ombitasvir-paritaprevir-ritonavir and dasabuvir, and simeprevir with sofosbuvir has dramatically altered the treatment landscape. High sustained virologic response (SVR) rates favor treatment, yet access to care poses a challenge for patients and providers. Current and emerging data with new therapies indicate high SVR rates in treatment-naïve and treatment-experienced patients, including patients with cirrhosis and in other special populations. Additional data suggest the addition of ribavirin can decrease treatment duration without compromising SVR rates. Resistance is an increasing area of interest in HCV, with baseline mutations identified and the potential for the development of resistance-associate variants in patients undergoing treatment. Due to the rapid evolution of HCV treatment, pharmacists should address challenges and play an integral role in agent selection, dosing, drug interaction screening, adverse effect monitoring, and the coordination of treatment. Clinical application of the latest information will reduce patient risk and improve outcomes.