Aims: The goal of the study was to compare persistence with vedolizumab versus adalimumab, golimumab, and infliximab in biologics-naïve patients with inflammatory bowel disease treated in gastroenterological practices and outpatient clinics in Germany.
Methods: Patients aged 18 or older who had initiated a biological therapy (vedolizumab, infliximab, adalimumab, or golimumab) were included in the present study. Prescriptions between July 2014 and March 2017 of the respective biological drug emerging from gastroenterological practices or outpatient clinics in Germany were retrieved from the longitudinal prescription (LRx) database. Patients treated with vedolizumab were matched with patients treated with infliximab, adalimumab, or golimumab on the basis of age, gender, medication before biologic therapy, and index year. The primary outcome variable of the study was the rate of persistence with vedolizumab compared with antitumor necrosis factor biologics (infliximab, adalimumab, and golimumab) within 3 years of the first prescription in outpatient settings.
Results: Kaplan-Meier analysis was performed in 15,984 patients naïve to biologics revealing the statistically lower risk of discontinuation for vedolizumab compared with adalimumab, golimumab, or infliximab. In matched-pairs analyses, within 3 years after the first prescription, 39.5% of 2076 patients were persistent to vedolizumab compared with 33.5% of matched patients persistent to adalimumab (P<0.001). 37.6% of 716 patients were persistent to vedolizumab compared with 24.7% of matched patients persistent to golimumab (P<0.001). 35.7% of 2055 patients were persistent to vedolizumab compared with 30.2% of matched patients persistent to infliximab (P=0.119). Vedolizumab was associated with a significantly lower risk of therapy discontinuation compared with adalimumab [hazard ratio (HR)=0.86; 95% confidence interval (CI), 0.81-0.93] and golimumab (HR=0.60; 95% CI, 0.54-0.67), respectively; the vedolizumab risk of therapy discontinuation was numerically lower than infliximab but statistical significance was not achieved (HR=0.93; 95% CI, 0.85-1.02).
Conclusion: In biologics-naïve IBD patients treated in outpatient settings in Germany, matched-pair analyses showed that vedolizumab was associated with significantly improved drug persistence compared with adalimumab or golimumab, whereas numerical improvement was shown in comparison with infliximab.