Treatment options for patients with hepatitis C: role of pharmacists in optimizing treatment response and managing adverse events

Attitudes toward pharmacy-based HCV/HIV testing among people who use drugs in rural Kentucky

PURPOSE

Rural areas of the United States have experienced outbreaks of human immunodeficiency virus (HIV) and hepatitis C virus (HCV) infections among people who use drugs (PWUD). Pharmacy-based interventions may play a crucial role in prevention and entry into care, especially when traditional health care access is limited. The willingness of rural PWUD to use pharmacies for HIV/HCV-related services remains unknown. The purpose of this study was to describe the factors associated with the perceived likelihood of participating in free pharmacy-based HIV and HCV testing among PWUD living in rural Kentucky.

METHODS

Baseline data from the CARE2HOPE study in five Appalachian counties in eastern Kentucky were used. Participants were recruited using respondent-driven sampling and completed interviewer-administered surveys. Guided by the Andersen and Newman Framework of Health Services Utilization, we examined distributions and correlates of items regarding willingness to participate in free pharmacy-based HIV/HCV testing using logistic regression. Analyses included individuals who reported being HIV (N = 304) or HCV (N = 185) negative.

FINDINGS

Seventy-five percent of PWUD reported being "very likely" to participate in free pharmacy-based HIV testing and 80% for HCV testing. Two factors were associated with being less willing to participate in free HIV testing: PWUD who previously tested for HIV (OR: 0.47, CI: 0.25-0.88) and PWUD who obtained a high school diploma or equivalent compared to those who completed less (OR: 0.50, CI: 0.26-0.99).

CONCLUSION

Free pharmacy-based HIV and HCV testing was invariably acceptable among most of the rural PWUD in our sample, suggesting that pharmacies might be acceptable testing venues for this population.

A Randomized Controlled Trial to Assess the Impact of Clinical Pharmacy Interventions on Treatment Outcomes, Health Related Quality of Life and Medication Adherence Among Hepatitis C Patients

PURPOSE

The role of specialized pharmacy services remains unexplored in clinical practice for hepatitis C patients in Pakistan. This study aimed to evaluate the impact of clinical pharmacy interventions on treatment outcomes, health-related quality of life (HRQoL), and medication adherence among hepatitis C patients.

METHODS

A randomized control trial was conducted at two tertiary-care teaching hospitals in Pakistan. Hepatitis C patients who attended the outpatient clinics between October 2015 and September 2018 were randomized to two groups [usual care (UC) and pharmaceutical care (PC)] in a 1:1 ratio, applying simple envelope method. The PC group received pharmaceutical care led by a clinical pharmacist. The care that patients received included education and counseling on medication compliance, labeling of medication packs, and monitoring of adverse drug events, led by a qualified clinical pharmacist during the 15- to 20-minute monthly sessions, while the UC group received standard care at hospital, which did not involve clinical pharmacist input. Outcome measures, such as sustained virological response, HRQoL, and adherence rate (pharmacy data) were assessed at enrolment and distinct time intervals: 4 weeks, 8 weeks, and end of treatment.

RESULTS

A total of 931 patients were included in the study (UC 466 and PC 465), with mean age 42.35±1.9 years. Sustained virological response at 12 weeks was achieved in 86.0% patients in the PC group, significantly (p<0.001) higher than the UC (69.3%) group. Fewer patients (9.9%) in the PC group reported mobility problems, significantly fewer (p<0.001) than the UC group (11.8%). Self-care, usual activity, pain, and depression were relieved significantly in the PC group compared to the UC group. The EuroQol visual analogue scale (baseline 56.1 of UC group versus 55.2 for PC group) was raised to 71.8 and 71.9 in the UC and PC groups, respectively. Medication adherence was significantly improved (p<0.001) in the PC group (88.6%) when compared to the UC group (77.9%, 95% CI 88.9%-91.9%).

CONCLUSION

Pharmacist-led clinical pharmacy interventions as part of multidisciplinary care had a significant impact on improving cure rates, HRQoL, and medication adherence for hepatitis C patients. This study suggests that clinical pharmacists should be incorporated into the multidisciplinary health-care team for care of hepatitis C patients.

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.

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.

Optimizing hepatitis C virus treatment through pharmacist interventions: Identification and management of drug-drug interactions

AIM

To quantify drug-drug-interactions (DDIs) encountered in patients prescribed hepatitis C virus (HCV) treatment, the interventions made, and the time spent in this process.

METHODS

As standard of care, a clinical pharmacist screened for DDIs in patients prescribed direct acting antiviral (DAA) HCV treatment between November 2013 and July 2015 at the University of Colorado Hepatology Clinic. HCV regimens prescribed included ledipasvir/sofosbuvir (LDV/SOF), paritaprevir/ritonavir/ombitasvir/dasabuvir (OBV/PTV/r + DSV), simeprevir/sofosbuvir (SIM/SOF), and sofosbuvir/ribavirin (SOF/RBV). This retrospective analysis reviewed the work completed by the clinical pharmacist in order to measure the aims identified for the study. The number and type of DDIs identified were summarized with descriptive statistics.

RESULTS

Six hundred and sixty four patients (83.4% Caucasian, 57% male, average 56.7 years old) were identified; 369 for LDV/SOF, 48 for OBV/PTV/r + DSV, 114 for SIM/SOF, and 133 for SOF/RBV. Fifty-one point five per cent of patients were cirrhotic. Overall, 5217 medications were reviewed (7.86 medications per patient) and 781 interactions identified (1.18 interactions per patient). The number of interactions were fewest for SOF/RBV (0.17 interactions per patient) and highest for OBV/PTV/r + DSV (2.48 interactions per patient). LDV/SOF and SIM/SOF had similar number of interactions (1.28 and 1.48 interactions per patient, respectively). Gastric acid modifiers and vitamin/herbal supplements commonly caused interactions with LDV/SOF. Hypertensive agents, analgesics, and psychiatric medications frequently caused interactions with OBV/PTV/r + DSV and SIM/SOF. To manage these interactions, the pharmacists most often recommended discontinuing the medication (28.9%), increasing monitoring for toxicities (24.1%), or separating administration times (18.2%). The pharmacist chart review for each patient usually took approximately 30 min, with additional time for more complex patients.

CONCLUSION

DDIs are common with HCV medications and management can require medication adjustments and increased monitoring. An interdisciplinary team including a clinical pharmacist can optimize patient care.

Prevalence and detection of neuropsychiatric adverse effects during hepatitis C treatment

BACKGROUND

Current treatment combinations for chronic hepatitis C virus infection still include pegylated interferon and ribavirin despite the new therapeutic options available. Interferon-based treatments are associated with a high incidence of adverse effects. Central nervous system events are among the most frequent adverse drug reactions and their influence on treatment adherence and effectiveness is controversial.

OBJECTIVE

The aim of the study was to evaluate neuropsychiatric adverse effects of interferon-based treatment for chronic hepatitis C in standard multidisciplinary clinical practice. Risk factors for these adverse effects and their impact on adherence and sustained viral response were also evaluated. Setting Ambulatory care pharmacy in coordination with the liver unit and the infectious diseases unit at a 650-bed tertiary university hospital.

METHODS

We included all consecutive patients with chronic hepatitis C who completed treatment with pegylated interferon and ribavirin between 2005 and 2013. All patients underwent a multidisciplinary follow-up during treatment.

MAIN OUTCOME MEASURES

Neuropsychiatric adverse effects were evaluated in relation to severity, management and outcome. The presence of anxiety and depression was evaluated by means of specific tests.

RESULTS

A total of 717 treatments in 679 patients were included. During treatment, we detected 1679 neuropsychiatric adverse effects in 618 patients (86.2 %), generating 1737 clinical interventions. Fifty-seven (3.3 %) neuropsychiatric adverse effects were severe and 2 (0.1 %) were life-threatening (suicidal attempts). Most neuropsychiatric adverse effects (1555 events, 92.6 %) resolved without sequelae. Psychiatric medication was required in 289 patients (40.3 %). Sustained viral response was achieved in 400 cases (55.8 %) and was associated with adherence (OR = 1.942, 95 % CI = 1.235-3.052, p = 0.004). A multivariate analysis did not show any relationship between neuropsychiatric adverse effects and treatment adherence or sustained viral response. A psychiatric history was a strong risk factor for depression, anxiety and other psychiatric disorders during treatment.

CONCLUSION

Neuropsychiatric adverse effects during interferon-based treatments in patients with chronic hepatitis C were common but mostly mild or moderate. Early detection and accurate multidisciplinary management avoided treatment discontinuation, ensuring adherence and attaining sustained viral response. The identified risk factors could be used to determine patients eligible for interferon-free combinations, thus optimizing health system economics.

Impact of provider type on hepatitis C outcomes with boceprevir-based and telaprevir-based regimens

GOALS

To examine the effect of provider type on outcomes and safety in a large hepatitis C virus (HCV)-infected cohort treated in routine medical practice.

BACKGROUND

Nonphysician providers (NPP) are uniquely positioned to expand health care infrastructure to meet HCV treatment demands.

STUDY

Retrospective, observational cohort analysis of 820 HCV genotype 1-infected veterans initiated on peginterferon/ribavirin and boceprevir or telaprevir in routine medical practice at 94 VA facilities before January 1, 2012 and followed through July 30, 2013. Provider type was determined from prescription records and included physicians (MD) or NPPs (ie, nurse practitioners, physician assistants, and pharmacists). Inverse probability-of-treatment weighting and unweighted logistic regression analysis was used for comparison of sustained virologic response (SVR), treatment discontinuation rates, and adverse hematologic events.

RESULTS

There was no significant difference in SVR by provider type overall (NPPs 52% vs. MDs 49%, P=0.33) and within patient subgroups, or in treatment discontinuation rates. In multivariate analyses, provider type was not associated with any significant difference in the odds of achieving SVR (NPP vs. MD; odds ratio 1.17; 95% confidence interval, 0.84-1.63; P=0.37 inverse probability of treatment weighting; odds ration 1.16, 95% confidence interval, 0.84-1.59, P=0.38 unweighted). Hematologic adverse event rates were similar: anemia: 57% NPP, 62% MD; thrombocytopenia: 43% NPP, 40% MD; neutropenia: 40% NPP, 39% MD.

CONCLUSIONS

Treatment prescribed by NPPs was as likely to result in SVR as treatment prescribed by MDs, even after accounting for patient differences. Engaging more NPPs as HCV treatment providers may allow wider access to HCV treatment.

A psychiatric pharmacist in a liver clinic managing treated patients with chronic hepatitis C viral infection

A board-certified psychiatric pharmacist is an ideal clinician to manage medication needs for patients being treated for chronic hepatitis C virus infection. Underlying psychiatric symptoms should be managed before initiating medications such as interferons-therapeutic biologicals associated with causing psychiatric adverse events, including suicide. The role of a psychiatric pharmacist in a hepatitis C liver clinic highlights the value of a psychiatric pharmacist providing direct patient care and improving the quality of healthcare services in a subspecialty practice model.

Impact of rural residence and health system structure on quality of liver care

Background

Specialist physician concentration in urban areas can affect access and quality of care for rural patients. As effective drug treatment for hepatitis C (HCV) becomes increasingly available, the extent to which rural patients needing HCV specialists face access or quality deficits is unknown. We sought to determine the influence of rural residency on access to HCV specialists and quality of liver care.

Methods

The study used a national cohort of 151,965 Veterans Health Administration (VHA) patients with HCV starting in 2005 and followed to 2009. The VHA’s constant national benefit structure reduces the impact of insurance as an explanation for observed disparities. Multivariate cox proportion regression models for each quality indicator were performed.

Results

Thirty percent of VHA patients with HCV reside in rural and highly rural areas. Compared to urban residents, highly rural (HR 0.70, CI 0.65-0.75) and rural (HR 0.96, CI 0.94-0.97) residents were significantly less likely to access HCV specialty care. The quality indicators were more mixed. While rural residents were less likely to receive HIV screening, there were no significant differences in hepatitis vaccinations, endoscopic variceal and hepatocellular carcinoma screening between the geographic subgroups. Of note, highly rural (HR 1.31, CI 1.14-1.50) and rural residents (HR 1.06, CI 1.02-1.10) were more likely to receive HCV therapy. Of those treated for HCV, a third received therapy from a non-specialist provider.

Conclusion

Rural patients have less access to HCV specialists, but this does not necessarily translate to quality deficits. The VHA's efforts to improve specialty care access, rural patient behavior and decentralization of HCV therapy beyond specialty providers may explain this contradiction. Lessons learned within the VHA are critical for US healthcare systems restructuring into accountable care organizations that acquire features of integrated systems.

Physical, social, and psychological consequences of treatment for hepatitis C : a community-based evaluation of patient-reported outcomes

BACKGROUND

Hepatitis C virus (HCV) antiviral therapy entails a long treatment course, as well as significant side effects that can lead to medication non-adherence and premature termination of treatment. Few large studies have comprehensively examined patient perspectives on the treatment experience, particularly the social and personal effects.

OBJECTIVE

We sought to understand how a diverse group of patients' lives were affected during HCV treatment, and to obtain suggestions about how to better support patients during treatment.

METHODS

On average, 13 months after therapy we interviewed by telephone a consecutive sample of 200 patients treated for hepatitis C with ribavirin and pegylated interferon in a comprehensive, integrated health plan in the years 2008-2010. Mixed (quantitative and qualitative) survey methods were used.

RESULTS

The response rate was 68.9 %. Mean age at treatment was 51 years; 63.0 % were men; and Black, Hispanic, Asian, and White non-Hispanic racial/ethnic groups were similarly represented. Patients whose treatment was managed by nurses or clinical pharmacists (vs. physicians) were more likely to report their providers as being part of their support system (83.5 % vs. 58.9 %; p < 0.001). Most patients reported flu-like symptoms (93.5 %) and psychiatric problems (84.5 %), and 42.5 % reported side effects lasted up to 6 months after treatment. Black patients reported discontinuing treatment prematurely due to side effects more often than non-Blacks (29.4 % vs. 12.1 %; p < 0.001). Physical side effects (69.5 % of patients), psychiatric issues (43.5 %), and employment (27.4 %) were ranked among the three most difficult challenges. Patients desired help in anticipating and arranging work modifications during treatment. Most patients rated peer support, nutritional guidance, and weekly provider contact by telephone as potentially helpful resources for future patients undergoing HCV treatment.

CONCLUSIONS

Patient perspectives can help formulate and refine HCV treatment support programs. Effective support programs for diverse populations are crucial as the complexities and costs of HCV treatment increase. The call for greater support from peers, providers, and employers demands new systems such as patient-centered care teams.

Evaluation of medication adherence and quality of life in patients with hepatitis C virus receiving combination therapy

The purpose of this study was to identify medication adherence for patients infected with hepatitis C virus (HCV) referred to an interdisciplinary HCV education and monitoring service, evaluate changes in quality of life (QOL) and medication adherence during the first 3 months of HCV therapy, and determine relationships between adherence and QOL. Patients completed an initial survey before initiating the therapy evaluating medication adherence and QOL. They then received a structured training on HCV medications and monthly monitoring phone call from a pharmacist throughout the therapy. After 3 months of treatment, a follow-up survey was conducted to evaluate adherence, satisfaction, and QOL. Medication adherence was also assessed via patient self-report during follow-up phone calls. Patients expressed satisfaction with the care provided by the pharmacist and nurse practitioner individually and working collaboratively during their HCV therapy. Patients reported taking 99.8% of total interferon and ribavirin doses during the first 3 months of the therapy. Patients who indicated that they sometimes stopped taking medication when they felt worse had higher median aggregate physical functioning scores (p = .04) and those with no comorbidities found dosage times more inconvenient than those with at least one comorbidity (p = .046). Patients in a pharmacist-run HCV education service have high self-reported adherence rates and are satisfied with the interdisciplinary model of care. Quality of life may be associated with adherence; higher functioning, healthier patients may be more likely to stop taking HCV medications owing to side effects or inconvenience.

Recent Publications on Medications and Pharmacy

Hospital Pharmacy presents this feature to keep pharmacists abreast of new publications in the medical/pharmacy literature. Articles of interest regarding a broad scope of topics are abstracted monthly.