scholarly journals IDDF2020-ABS-0033 The effect of immunomodulators and other factors on the persistence of biological agents for Crohn’s disease and ulcerative colitis: data from the australian population-based registry

Author(s):  
Yanna Ko ◽  
Rupert Leong ◽  
Sudarshan Paramsothy
Author(s):  
Domingo Balderramo ◽  
Juan Trakal ◽  
Pablo Herrera Najum ◽  
Melina Vivas ◽  
Roxana Gonzalez ◽  
...  

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S342-S343 ◽  
Author(s):  
Y Ko ◽  
S Paramsothy ◽  
R Leong

Abstract Background Treatment persistence (duration of medication use) provides real-world evidence on therapeutic effectiveness, tolerability and prescriber and patient preferences. Biological agent persistence in Crohn’s disease (CD) and ulcerative colitis (UC) was compared from a national population-based registry with no hierarchical prescribing order. We hypothesised immunotherapy co-therapy would increase persistence for anti-TNF agents, but not for non-anti-TNF agents due to reduced immunogenicity. Methods A randomly selected ten per cent subgroup of the prospectively collected population-based registry from the Australian Pharmaceutical Benefits Scheme between June 2005 and June 2019 was analysed. Treatment persistence of adalimumab (ADA), infliximab (IFX), vedolizumab (VDZ) and ustekinumab (UST) was compared. Factors affecting discontinuation were evaluated using multivariate proportional hazard regression. Results 886 patients consisting of 1294 lines of therapy (992 CD, 302 UC, 2778 person-years of follow-up) were included. In CD, UST had the highest overall persistence rate (median persistence rate was > 74.6% where 24.6 months is the maximum follow-up time recorded), followed by VDZ, IFX and ADA (p = 0.03) (Figure 1). UST had the highest persistence as first, second and third-line therapies (p < 0.05). In UC, VDZ had the highest persistence rate (median persistence rate was >50.3% where 47.4 months is the maximum follow-up time recorded), followed by IFX and ADA (p < 0.001) (Figure 2). VDZ had the highest persistence rates as first-line therapy (p < 0.001), while second and third-line therapies did not demonstrate significant differences. Persistence of biological agents correlated with immunomodulator co-therapy in CD (R2: 0.65 p < 0.001) and UC (R2: 0.50 p < 0.001). Thiopurine co-therapy significantly increased persistence for IFX and ADA in CD and UC (p < 0.001) (Figures 3 and 4) but was not significant for UST and VDZ. Methotrexate decreased persistence for VDZ in UC and had no effects on UST, IFX and ADA in UC and CD. In acute-severe UC, there were no significant differences between IFX as monotherapy vs. co-therapy. On multivariate analysis, higher persistence was seen in males (HR: 0.75 95% CI: 0.59–0.94) and with immunomodulator co-therapy (HR 0.77 95% CI: 0.61–0.97, p = 0.03). Conclusion This real-world data reflecting treatment effectiveness, tolerability and patient and prescriber preferences supports the use of UST and VDZ over anti-TNF agents in CD and UC, respectively, to achieve high treatment persistence which is independent of immunomodulator co-therapy, possibly secondary to differing immunogenicity rates. It also highlights the substantial increase in anti-TNF therapy persistence with thiopurine co-therapy, but not with methotrexate.


2001 ◽  
Vol 85 (03) ◽  
pp. 430-434 ◽  
Author(s):  
James Blanchard ◽  
Donald Houston ◽  
Andre Wajda ◽  
Charles Bernstein

Summary Background: There is an impression mostly from specialty clinics that patients with inflammatory bowel disease (IBD) have an increased risk of venous thromboembolic disorders. Our aim was to determine the incidence of deep venous thrombosis (DVT) and pulmonary embolism (PE) from a population-based database of IBD patients and, to compare the incidence rates to that of an age, gender and geographically matched population control group. Methods: IBD patients identified from the administrative claims data of the universal provincial insurance plan of Manitoba were matched 1:10 to randomly selected members of the general population without IBD by year, age, gender, and postal area of residence using Manitoba Health’s population registry. The incidence of hospitalization for DVT and PE was calculated from hospital discharge abstracts using ICD-9-CM codes 451.1, 453.x for DVT and 415.1x for PE. Rates were calculated based on person-years of follow-up for 1984-1997. Comparisons to the population cohort yielded age-adjusted incidence rate ratios (IRR). Rates were calculated based on person-years of follow-up (Crohn’s disease = 21,340, ulcerative colitis = 19,665) for 1984-1997. Results: In Crohn’s disease the incidence rate of DVT was 31.4/10,000 person-years and of PE was 10.3/10,000 person-years. In ulcerative colitis the incidence rates were 30.0/10,000 person-years for DVT and 19.8/10,000 person-years for PE. The IRR was 4.7 (95% CI, 3.5-6.3) for DVT and 2.9 (1.8-4.7) for PE in Crohn’s disease and 2.8 (2.1-3.7) for DVT and 3.6 (2.5-5.2) for PE, in ulcerative colitis. There were no gender differences for IRR. The highest rates of DVT and PE were seen among patients over 60 years old; however the highest IRR for these events were among patients less than 40 years. Conclusion: IBD patients have a threefold increased risk of developing DVT or PE.


2012 ◽  
Vol 6 (5) ◽  
pp. 524-528 ◽  
Author(s):  
Pia Manninen ◽  
Anna-Liisa Karvonen ◽  
Heini Huhtala ◽  
Martin Rasmussen ◽  
Maarit Salo ◽  
...  

2009 ◽  
Vol 3 (2) ◽  
pp. 92-99 ◽  
Author(s):  
May-Bente Bengtson ◽  
Camilla Solberg ◽  
Geir Aamodt ◽  
Jostein Sauar ◽  
Jørgen Jahnsen ◽  
...  

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