An indirect comparison of ustekinumab and vedolizumab in the therapy of TNF-failure Crohn's disease patients

Aim: An indirect comparison of ustekinumab versus vedolizumab in patients with active moderate-to-severe Crohn's disease who were nonresponsive or intolerant to previous TNF-antagonist therapy. Methods: A systematic review was performed in Medline via PubMed, Embase, Cochrane Library, until 30 April 2017. Inclusion criteria were: randomized controlled trials, patients treated for Crohn's disease, ustekinumab or vedolizumab therapy. Included trials were critically appraised and afterward indirect comparison by Bucher was conducted; the manuscript was prepared in accordance to the PRISMA requirements. Results: Five randomized controlled trials were included and assessed for homogeneity; they occurred eligible for indirect comparison referring to induction or maintenance phase of TNF-antagonist failure population treatment; no statistically significant differences in clinical response (relative benefit [RB]: 1.14; 95% CI: 0.65-1.99; p = 0.64) as well as in clinical remission (RB: 1.16; 95% CI: 0.54-2.48; p = 0.71) in induction phase of therapy were revealed; no significant disparity was presented in a maintenance phase in clinical remission (RB: 0.72; 95% CI: 0.30-1.68; p = 0.44). No significant differences were also revealed in primary and secondary nonresponders subpopulations in clinical response. Indirect comparison of the safety profile presented no statistically significant difference between the biologics (relative risk [RR]: 0.93; 95% CI: 0.81-1.08; p = 0.35). Conclusion: No significant differences between vedolizumab and ustekinumab in clinical response and clinical remission for induction and remission in maintenance phase of TNF refractory patients therapy were revealed. In addition, no significant disparities in the risk of adverse events suggest a similar safety profile.