Evaluation of Home Medication Reconciliation by Clinical Pharmacists for Adult and Pediatric Cystic Fibrosis Patients

Cystic fibrosis screening, evaluation, and management of hepatobiliary disease consensus recommendations

Cystic fibrosis (CF) may cause a spectrum of hepatobiliary complications, including portal hypertension, multilobular cirrhosis, and liver failure. Current guidelines on the detection and monitoring of hepatobiliary complications in CF were published in 1999. The CF Foundation assembled a committee to evaluate research advances and formulate revised guidelines for CF-associated liver disease. A committee of hepatologists, gastroenterologists, pulmonologists, pharmacists, nurses, dietitians, individuals with CF, and the parents of a child with CF devised "population, intervention, comparison, and outcome" questions regarding hepatobiliary disease in CF. PubMed literature searches were performed for each population, intervention, comparison, and outcome question. Recommendations were voted on with 80% agreement required to approve a recommendation. Public comment on initial recommendations was solicited prior to the formulation of final recommendations. Thirty-one population, intervention, comparison, and outcome questions were assembled, 6401 manuscripts were title screened for relevance, with 1053 manuscripts undergoing detailed full-text review. Seven recommendations were approved for screening, 13 for monitoring of existing disease, and 14 for treatment of CF-associated hepatobiliary involvement or advanced liver disease. One recommendation on liver biopsy did not meet the 80% threshold. One recommendation on screening ultrasound was revised and re-voted on. Through a multidisciplinary committee and public engagement, we have assembled updated recommendations and guidance on screening, monitoring, and treatment of CF-associated hepatobiliary involvement and advanced liver disease. While research gaps remain, we anticipate that these recommendations will lead to improvements in CF outcomes through earlier detection and increased evidence-based approaches to monitoring and treatment.

Drug-drug interactions involving CFTR modulators: a review of the evidence and clinical implications

INTRODUCTION

Cystic fibrosis (CF) is characterized by mucus accumulation impairing the lungs, gastrointestinal tract, and other organs. Cystic fibrosis transmembrane conductance regulator (CFTR) modulators (ivacaftor, tezacaftor, elexacaftor, and lumacaftor) significantly improve lung function and nutritional status; however, they are substrates, inhibitors, and/or inducers of certain CYP enzymes and transporters, raising the risk of drug-drug interactions (DDI) with common CF medications.

AREAS COVERED

A literature search was conducted for DDIs involving CFTR modulators by reviewing new drug applications, drug package inserts, clinical studies, and validated databases of substrates, inhibitors, and inducers. Clinically, CYP3A inducers and inhibitors significantly decrease and increase systemic concentrations of elexacaftor/tezacaftor/ivacaftor, respectively. Additionally, lumacaftor and ivacaftor alter concentrations of CYP3A and P-gp substrates. Potential DDIs without current clinical evidence include ivacaftor and elexacaftor's effect on CYP2C9 and OATP1B1/3 substrates, respectively, and OATP1B1/3 and P-gp inhibitors' effect on tezacaftor. A literature review was conducted using PubMed.

EXPERT OPINION

Dosing recommendations for CFTR modulators with DDIs are relatively comprehensive; however, recommendations on timing of dosing transition of CFTR modulators when CYP3A inhibitors are initiated or discontinued is incomplete. Certain drug interactions may be managed by choosing an alternative treatment to avoid/minimize DDIs. Next generation CFTR modulator therapies under development are expected to provide increased activity with reduced DDI risk.

Virtual medication tours with a pharmacist as part of a cystic fibrosis telehealth visit

Background

As a result of the coronavirus disease 2019 (COVID-19) pandemic, institutions needed innovative solutions to provide care. With implementation of telehealth, a cystic fibrosis (CF) pharmacist was able to incorporate a virtual medication tour during appointments.

Objective

The purpose of our study was to describe the uptake and impact of pharmacist-led virtual medication tours during telehealth visits in the CF clinic setting.

Practice description

Before the COVID-19 pandemic, a CF pharmacist participated in in-person multidisciplinary team visits to complete medication history reconciliation, assess adherence, assess efficacy and address possible adverse effects of medications, and work collaboratively with the CF care team and patient to create therapeutic plans. The virtual medication tour described in this study was completed in addition or as a complement to these pre-existing pharmacist roles and responsibilities.

Practice innovation

Patients seen via telehealth visit were asked to provide a virtual tour of their medications. A pharmacist completed medication history and evaluated whether storage conditions were appropriate in regard to temperature, humidity, light exposure, and accessibility to children.

Evaluation methods

A pharmacist recorded findings from the virtual medication tours and made interventions when appropriate. Descriptive statistics were used for analysis.

Results

Of 20 patients seen via telehealth for a quarterly visit during the first 3 months after implementation, 13 were willing to participate in a virtual medication tour. Before the visit, 25% had information missing from their medication list. Virtual medication tour allowed for resolution of this information 80% of the time. Three of the 4 participating patients with a child under 12 years old had medications stored in a location accessible to children.

Conclusion

A virtual medication tour led by a pharmacist can be successfully incorporated into telehealth visits and was accepted by a majority of patients. Most patients stored medications appropriately but might benefit from education on poison prevention practices.

Characterizing medication management and the role of pharmacists in caring for people living with cystic fibrosis: A work system approach

BACKGROUND

Cystic fibrosis (CF) is an autosomal recessive genetic disease requiring complex, lifelong medication regimens. Given the importance of medication in CF treatment, pharmacists are vital CF care team members in the care of people living with CF (PwCF).

OBJECTIVES

This study aimed to (1) define patients' CF medication experiences and educational needs and (2) investigate the CF outpatient clinic and community pharmacist's role in addressing patient challenges.

METHODS

A work system approach informed by the Systems Engineering Initiative for Patient Safety (SEIPS) model was used to characterize knowledge and perception of CF medication regimens, educational modalities, and pharmacist interactions for PwCF. Semistructured interviews were conducted with adults living with CF at a CF center clinic. Data analyses identified relationships between the themes in the data and 4 SEIPS work system domains: tasks, tools and technology, person, and environment.

RESULTS

Thirty PwCF interviews highlighted 4 themes regarding health care experiences: (1) medication use experience, (2) medication education needs, (3) disease experience, and (4) pharmacist and pharmacy interactions. Patients reported complex medication regimens leading to challenges with medication adherence, although the benefit of treatment was recognized. Although a high level of disease-state knowledge was identified among the participants, PwCF desired to learn about CF medication benefits and adverse effects through credible sources using multiple modalities. Many reported a benefit of pharmacist involvement in their care.

CONCLUSION

Pharmacists are well-positioned to support PwCF in adherence, medication regimen management, and medication education. Opportunities exist for growth in these supportive roles of a pharmacist in both community and outpatient clinic settings.