Abstract
Background: Modern hepatitis C virus (HCV) treatment regimens yield cure rates greater than 90%. However, obtaining approval for treatment through the prior authorization (PA) process can be time consuming and require extensive documentation. Lack of experience with this complex process can delay HCV medication approval, ultimately increasing the amount of time before patients start treatment and in some cases, prevent treatment altogether. Objectives: Assess the impact of incorporating clinical pharmacists into specialty pharmacy and hepatology clinic services on medication access, patient adherence, and outcomes in patients being treated for HCV. Methods: We performed a retrospective cohort exploratory study of patients seen in an academic medical center hepatology clinic who had HCV prescriptions filled between 8/1/15 and 7/31/17. Patients were categorized by whether they filled prescriptions prior to (Pre-Group) or after (Post-Group) the implementation of a pharmacist in clinic. The Post-Group was further divided according to whether the patient was seen by a pharmacist in clinic (Post-Group 2) or if the patient was not seen by the pharmacist, but had their HCV therapy evaluated by the pharmacist before seeking insurance approval (Post-Group 1). Results: The mean time from the prescription being ordered to being dispensed was longer in the Pre-Group (50.8 ± 66.5 days) compared to both Post-Groups (22.2 ± 27.8 days in Post-Group 1 vs 18.9 ± 17.7 days in Post-Group 2; P < .05). The mean time from when the prescription was ordered to when the PA was submitted was longer in the Pre-Group (41.6 ± 71.9 days) compared to both Post-Groups (6.3 ± 16 in Post-Group 1 vs 4.1 ± 9.7 in Post-Group 2; P < .05). Rates of medication adherence and sustained virologic response were similar between all groups. Conclusion: Incorporation of clinical pharmacists into a hepatology clinic significantly reduced the time patients waited to start HCV treatment. In addition to improving access to medications, implementation of the model helped to maintain excellent medication adherence and cure rates.