Effect of a patient-support program on once-daily teriparatide adherence and persistence in the Japan Fracture
Masayo Sato1, Mika Tsujimoto2, Kenta Kajimoto2
1Medicines Development Unit Japan, Eli Lilly Japan K.K, Kobe, Hyogo, Japan. sato_masayo@lilly.com.
Abstract:
Japanese patients with osteoporosis prescribed once-daily teriparatide for 24 months could enroll in a patient-support program designed to aid adherence and persistence. Patients enrolled in the program had higher adherence and persistence rates than those who did not enroll, highlighting the value of patient-support programs for improving adherence and persistence.
Objective:
To assess the effect of a patient-support program on once-daily teriparatide adherence and persistence of patients who did and did not enroll.
Methods:
In the 24-month Japan Fracture Observational Study, patients with osteoporosis prescribed teriparatide 20 μg/day (N = 1996) could freely enroll in a patient-support program (call center support, monthly calendar, certificates of recognition). Outcome measures were medication adherence (investigator assessed) and persistence (first date of teriparatide use to last date of use or study end). Multivariate logistic models were applied for adherence, and Kaplan-Meier survival curve for persistence.
Results:
Overall, mean ± standard deviation (SD) age was 76.9 ± 7.9 years, and the proportion of female patients was 90.1%. Program enrollment status was 39.6% yes (n = 790), 22.9% no (n = 458), and 37.5% unknown (n = 748). In the analysis sample (1248 patients), adherence (> 75%) to teriparatide was more likely for patients enrolled in the support program (54.2 vs. 48.3%; adjusted odds ratio 1.44 [95% confidence intervals 1.04-2.00], p = 0.030). Good to very good (> 75%) adherence was also associated with smoking (negative association) and previous osteoporosis therapy (marginal positive association). Persistence rates were greater for patients enrolled in the support program than not enrolled (12 months 77.2 vs. 69.6%; 24 months 63.2 vs. 54.8%).
Conclusions:
Once-daily teriparatide adherence and persistence rates were higher among patients who enrolled in a patient-support program than among those who did not, highlighting the value of patient-support programs for improving adherence and persistence.
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