Journal
DIGESTIVE DISEASES AND SCIENCES
Volume 66, Issue 2, Pages 577-586Publisher
SPRINGER
DOI: 10.1007/s10620-020-06221-6
Keywords
Adherence; Pregnant; Ulcerative colitis; Mesalamine
Categories
Funding
- Ministry of Health, Labour and Welfare of Japan
- Japanese Ministry of Education, Culture, Sports, Science and Technology
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This study found that non-adherence to mesalamine was underestimated by physicians in pregnant UC patients, leading to disease relapse and potentially adverse pregnancy outcomes. Non-adherence was identified as an independent risk factor for relapse and could impact pregnancy outcomes. Preconceptional education on medication safety and avoiding self-discontinuation is necessary for these patients.
Background Adherence to medications is important to maintain disease under control and to prevent complications in pregnant patients with ulcerative colitis (UC). To evaluate the incidence of non-adherence during pregnancy and its effect on relapse and pregnancy outcomes, we conducted a multicenter prospective study using a patient self-reporting system without physician interference. Methods Sixty-eight pregnant UC women were recruited from 17 institutions between 2013 and 2019. During the course of pregnancy, questionnaires were collected separately from patients and physicians, to investigate the true adherence to medications, disease activity, and birth outcomes. Multivariable logistic regression analysis was performed to identify the risk factors for the relapse or adverse pregnancy outcomes. Results Of 68 pregnancy, 15 adverse pregnancy outcomes occurred in 13 patients. The rate of self-reported non-adherence was the greatest to mesalamines in the first trimester, which was significantly higher than physicians' estimate (p = 0.0116), and discontinuation was observed in 42.1% of non-adherent group. Logistic regression analysis revealed non-adherence as an independent risk factor for relapse [odds ratio (OR) 7.659, 95% CI 1.928-30.427, p = 0.038], and possibly for adverse pregnancy outcome (OR 8.378, 95% CI 1.350-51.994, p = 0.023). Among the subgroup of patients treated with oral mesalamine alone, the non-adherence was confirmed to be an independent risk factor for relapse (p = 0.002). Conclusion Non-adherence to mesalamine was underestimated by physicians in pregnant UC patients and contributed to disease relapse and possibly on pregnancy outcomes. Preconceptional education regarding safety of medications and risk of self-discontinuation is warranted.
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