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Objectives: Disease knowledge is important in adolescents with inflammatory bowel disease (IBD) transitioning to adult care. We developed an IBD-specific knowledge questionnaire, the Rotterdam Transition Test (RTT), and aimed to validate this tool., Methods: This is a prospective longitudinal validation study. The RTT has 25 open questions on IBD, medication, lifestyle, and transition to adult care. A scoring model was developed, and inter-rater agreement was assessed. Using a Rasch model, we determined the difficulty and performance of the questions. Cronbach alpha was used to demonstrate reliability. Patient factors (age, disease, education, medication use, illness acceptance, and independence) were correlated to RTT score., Results: A total of 207 RTTs were evaluated in 111 adolescent IBD patients. The scoring model showed a kappa score of >0.61 for all questions. Reliability with Cronbach alpha was good (0.81). Mean total result of the RTT was 58% (girls) and 55% (boys) of maximal score.The RTT discriminated well between the different levels of knowledge. Knowledge scores increased in patients who did repeated RTTs during the transition period. Male sex, low educational level, disease acceptance issues, and dependence on parents associated with a significantly lower total RTT score. Prednisone use within 3 months and treatment without biologics associated with significantly higher RTT scores. Disease activity was not a significant factor., Conclusions: The RTT is a reliable and valid tool to assess IBD knowledge. The RTT can be used to detect and discuss knowledge gaps in adolescents with IBD transitioning to adult healthcare., Competing Interests: J.C.E. served for a scientific advisory board for Janssen and Abbvie, and received a research grant from MSD, outside the submitted work. L.d.R. has done research consults for Celltrion and Abbvie, received grants from Pfizer outside the submitted work. J.v.d.W. served as a speaker for Celltrion, on the advisory board for Norgine (personal fees), and received research funding from Pfizer outside the submitted work. The remaining authors report no conflicts of interest., (Copyright © 2021 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Youth with inflammatory bowel disease (IBD) often experience psychological difficulties, such as anxiety and depression. This randomized controlled study tested whether a 3-month disease-specific cognitive behavioral therapy (CBT) in addition to standard medical care versus standard medical care only was effective in improving these youth's psychological outcomes. As this study was aimed at prevention, we included 70 youth (10-25 years) with IBD and symptoms of subclinical anxiety and/or depression, and measured psychological outcomes at 6- and 12-month follow-up. In general, participants in both groups showed improvements in anxiety, depression, health-related quality of life, social functioning, coping, and illness perceptions, sustained until 12 months follow-up. Overall, we found no differences between those receiving additional CBT and those receiving standard medical care only. We assume that this can be explained by the perceived low burden (both somatically and psychologically) or heightened awareness of psychological difficulties and IBD. ClinicalTrials.gov NCT02265588.

Background: Anxiety and depressive symptoms are prevalent in patients with inflammatory bowel disease (IBD) and may negatively influence disease course. Disease activity could be affected positively by treatment of psychological symptoms. We investigated the effect of cognitive behavioral therapy (CBT) on clinical disease course in 10-25-year-old IBD patients experiencing subclinical anxiety and/or depression., Methods: In this multicenter parallel group randomized controlled trial, IBD patients were randomized to disease-specific CBT in addition to standard medical care (CBT + care us usual [CAU]) or CAU only. The primary outcome was time to first relapse in the first 12 months. Secondary outcomes were clinical disease activity, fecal calprotectin, and C-reactive protein (CRP). Survival analyses and linear mixed models were performed to compare groups., Results: Seventy patients were randomized (CBT+CAU = 37, CAU = 33), with a mean age of 18.3 years (±50% < 18 y, 31.4% male, 51.4% Crohn's disease, 93% in remission). Time to first relapse did not differ between patients in the CBT+CAU group vs the CAU group (n = 65, P = 0.915). Furthermore, clinical disease activity, fecal calprotectin, and CRP did not significantly change over time between/within both groups. Exploratory analyses in 10-18-year-old patients showed a 9% increase per month of fecal calprotectin and a 7% increase per month of serum CRP in the CAU group, which was not seen in the CAU+CBT group., Conclusions: CBT did not influence time to relapse in young IBD patients with subclinical anxiety and/or depression. However, exploratory analyses may suggest a beneficial effect of CBT on inflammatory markers in children., (© 2019 Crohn’s & Colitis Foundation. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Background: Transition programmes are designed to prepare adolescent inflammatory bowel disease [IBD] patients for transfer to adult care. It is still unclear which outcome parameters define 'successful transition'. Therefore, this study aimed to identify outcomes important for success of transition in IBD., Methods: A multinational Delphi study in patients, IBD nurses, and paediatric and adult gastroenterologists was conducted. In stage 1, panellists commented on an outcome list. In stage 2, the refined list was graded from 1 to 9 [least to very important], by an expert and a patient panel. In stage 3, the expert panel ranked important outcomes from 1 to 10 [least to most important]. Descriptive statistics and Mann-Whitney U-tests were performed., Results: The final item list developed in stage 1 was tested by the expert [n = 74 participants, 52.7% paediatric] and patient panel [n = 61, aged 16-25 years, 49.2% male]. Respectively, ten and 11 items were found to be important by the expert and patient panel. Both panels agreed on eight of these items, of which six reflected self-management skills. In stage 3, the expert panel formed a top-ten list. The three most important items were: decision-making regarding IBD [mean score 6.7], independent communication [mean score 6.3] and patient satisfaction [mean score 5.8]., Conclusion: This is the first study identifying outcomes that IBD healthcare providers and patients deem important factors for successful transition. Self-management skills were considered more important than IBD-specific items. This is a first step to further define success of transition in IBD and subsequently evaluate the efficacy of different transition models., (Copyright © 2019 European Crohn’s and Colitis Organisation (ECCO). Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com.)

Background: In youth with inflammatory bowel disease (IBD), health-related quality of life (HRQOL) has been shown to be affected by individual disease factors and specific psychological factors. The innovative aim of this study is to examine the combined impact of psychological factors (illness perceptions, cognitive coping, anxiety, and depression) on HRQOL, over and above the associations of demographic and disease factors with HRQOL in youth with IBD., Method: Data on clinical disease activity, illness perceptions, cognitive coping, anxiety, depression, and HRQOL were prospectively collected in 262 consecutive youth (age 10-20, 46.6% male) with confirmed IBD. Multiple linear regression analyses tested the associations of demographic, disease, and psychological variables with HRQOL in separate groups for Crohn's disease (CD; N = 147) and ulcerative colitis and IBD unclassified (UC/IBD-U; N = 115), using age-specific validated instruments., Results: In both disease groups, more negative illness perceptions (ß = - .412; ß = - .438, p < .001) and more depression (ß = - .454; ß = - .279, p < .001) were related to lower HRQOL. In the UC/IBD-U group, more anxiety was related to lower HRQOL (ß = - .201, p = .001). The model with the psychological variables explained a large and significant amount of variance in both groups: 74% and 83%, respectively (p < .001)., Conclusion: In 10-20-year-old IBD patients, negative illness perceptions and depression were significantly and more strongly associated with lower HRQOL than demographic and disease factors. Thus, it is important to integrate psychological factors in the treatment for IBD patients. To improve HRQOL in young IBD patients, psychological interventions should be targeted at negative illness perceptions and depression.

Aim: It can be difficult for adolescents with inflammatory bowel disease (IBD) to make the transition from paediatric to adult care. We studied the outcomes of this process and defined what constituted a successful transition., Methods: In 2008, 50 adolescents who attended our IBD transition clinic completed IBD-yourself, a self-efficacy questionnaire that we had previously developed and validated. We approached the subjects in 2014, two to six years after they transferred to adult care, and 35 agreed to take part in the current study. The outcome of transition was assessed by our newly developed Transition Yourself Score. In addition, the relationship between self-efficacy and the outcome of the transition was measured., Results: The mean age of the patients was 21.8 years, and 69% suffered from Crohn's disease. The transition process was successful in 63% of cases, moderately successful in 31% and failed in 6%. A successful transition was associated with effective use of medication and clinical remission at the time of transfer, but could not be predicted by self-efficacy. The Transition Yourself Score will be validated in future studies., Conclusion: Nearly two-thirds (63%) of the adolescents who attended the IBD transition clinic had a successful transition to adult care., (©2018 The Authors. Acta Paediatrica published by John Wiley & Sons Ltd on behalf of Foundation Acta Paediatrica.)

Objective: To evaluate the effectiveness of a disease-specific cognitive behavioral therapy (CBT) protocol on anxiety and depressive symptoms and health-related quality of life (HRQOL) in adolescents and young adults with inflammatory bowel disease (IBD)., Method: A parallel group randomized controlled trial was conducted in 6 centers of (pediatric) gastroenterology. Included were 70 patients and young adults (10-25 years) with IBD and subclinical anxiety and/or depressive symptoms. Patients were randomized into 2 groups, stratified by center: (a) standard medical care (care-as-usual [CAU]) plus disease-specific manualized CBT (Primary and Secondary Control Enhancement Training for Physical Illness; PASCET-PI), with 10 weekly sessions, 3 parent sessions, and 3 booster sessions (n = 37), or (b) CAU only (n = 33). Primary analysis concerned the reliable change in anxiety and depressive symptoms after 3 months (immediate posttreatment assessment). Exploratory analyses concerned (1) the course of anxiety and depressive symptoms and HRQOL in subgroups based on age, and (2) the influence of age, gender, and disease type on the effect of the PASCET-PI., Results: Overall, all participants improved significantly in their anxiety and depressive symptoms and HRQOL, regardless of group, age, gender, and disease type. Primary chi-square tests and exploratory linear mixed models showed no difference in outcomes between the PASCET-PI (n = 35) and the CAU group (n = 33)., Conclusions: In youth with IBD and subclinical anxiety and/or depressive symptoms, preliminary results of immediate post-treatment assessment indicated that a disease-specific CBT added to standard medical care did not perform better than standard medical care in improving psychological symptoms or HRQOL. ClinicalTrials.gov: NCT02265588.

Background: The co-existence of psychological problems and paediatric inflammatory bowel disease (IBD) is receiving increasing attention. Most studies investigated anxiety and depression, with prevalence rates varying from 0% to 50%. A systematic review is necessary to provide clear insight into the prevalence of anxiety and depression in paediatric IBD., Aim: To systematically evaluate available data on the prevalence of anxiety and depressive symptoms and disorders in paediatric IBD (aged 6-18 years)., Methods: Comprehensive searches were performed in Embase, Medline Ovid, Web of Science, Cochrane, PubMed, PsychInfo Ovid, and Google scholar for studies published from 1994 to 2017. Pooled prevalence rates were calculated using inverse variance heterogeneity models. Meta-regression was used to study if disease type, disease activity and gender influence prevalence., Results: Twenty-eight studies (N = 8107, mean age: 14.3) were identified. Pooled prevalence estimates were 16.4% (95% confidence interval [CI] 6.8%-27.3%) for anxiety symptoms and 4.2% (95% CI 3.6%-4.8%) for anxiety disorders. Pooled prevalence estimates were 15.0% (95% CI 6.4%-24.8%) for depressive symptoms and 3.4% (95% CI 0%-9.3%) for depressive disorders. Meta-regression showed no influence of disease type or gender on these prevalence rates, but studies with a higher percentage of active disease had a higher rate of depressive symptoms., Conclusions: The described pooled prevalence of anxiety and depressive symptoms is lower than in adult IBD. However, due to varying instruments/cut-offs for measuring symptoms and few studies investigating disorders, the results should be interpreted with caution. Cross-cultural use of the same instruments is needed to gain better insight into prevalence rates., (© 2018 John Wiley & Sons Ltd.)

Background: Youths with inflammatory bowel disease (IBD) are at risk for developing anxiety and depressive symptoms with a reported 20%-50% prevalence rate., Aims: This prospective study aimed to: (1) describe the prevalence and severity of anxiety and depressive symptoms in a large Dutch cohort of young IBD patients, and (2) identify demographic and clinical risk factors for anxiety and depression., Methods: IBD patients (n = 374; 10-25 years) were screened for anxiety, depression and quality of life using validated age-specific questionnaires. Patients with elevated scores for anxiety and/or depressive symptoms received a diagnostic interview assessing psychiatric disorders. Demographic and clinical characteristics were retrieved from medical charts. Multiple logistic regression analysis was performed to identify risk factors for anxiety and/or depression., Results: Patients (mean age 18.9 years, 44.1% male, Crohn's disease 60.4%) had disease in remission (75.4%), or mild, moderate and severe clinical disease activity in, respectively, 19.8%, 2.7% and 2.1%. Mild anxiety/depressive symptoms were present in 35.2% and severe symptoms in 12.4% of patients. Elevated symptoms of either anxiety (28.3%), depression (2.9%) or both (15.8%) were found and did not differ between adolescents (10-17 years) and young adults (18-25 years). Active disease significantly predicted depressive symptoms (odds ratio (OR): 4.6 [95% confidence interval [CI]: 2.4-8.8], P < 0.001). Female gender (OR: 1.7 [95% CI: 1.1-2.7]), active disease (OR: 1.9 [95% CI: 1.1-3.2]) and a shorter disease duration (OR: 1.3 [95% CI: 0.6-1.0) (all P < 0.025) significantly predicted anxiety and/or depressive symptoms., Conclusions: Considering the high prevalence of anxiety and depressive symptoms, psychological screening is recommended in young IBD patients. Screening facilitates early recognition and psychological treatment. Female patients and patients with active disease are the most vulnerable., (© 2018 John Wiley & Sons Ltd.)

Background: Loss of response to anti-tumour necrosis factor (TNF) therapy in patients with inflammatory bowel disease (IBD) is often caused by anti-drug antibody formation with neutralisation of drug effect. Addition of an immunomodulator has been suggested to reduce immunogenicity, leading to regained response., Aim: To investigate whether addition of an immunomodulator to anti-TNF monotherapy could lead to anti-drug antibody suppression and regained clinical response in IBD patients., Methods: We retrospectively collected measurements of infliximab or adalimumab serum concentrations and anti-drug antibodies to identify anti-drug positive patients with loss response who were given an immunomodulator., Results: Anti-drug antibodies against infliximab and adalimumab were detected in 98/376 (26%) and in 61/226 (27%) patients, respectively. Immunomodulators were given to 17/159 patients. Clinical response was recaptured in 6/10 patients receiving a thiopurine and in all (7/7) patients receiving methotrexate. In 7/8 patients on infliximab, serum concentrations increased (median 2.84 μg/mL; IQR: 1.19-4.98) and in 6/9 patients on adalimumab (median 3.10 μg/mL; IQR: 1.45-4.45). This was accompanied by a decrease in anti-drug antibodies to undetectable levels (median 11 months for both anti-TNF agents). In 23 patients, no immunomodulator was added but anti-TNF interval was shortened (17/23) or dosage was increased (6/23), which resulted in a clinical response in 10/17 and 2/6 patients, respectively., Conclusion: In 77% of IBD patients with loss of response due to immunogenicity, addition of immunomodulator resulted in undetectable anti-drug antibody levels, increased serum drug concentrations and regained clinical response. This strategy should be considered in this patient population before switching to other agents., (© 2017 John Wiley & Sons Ltd.)

The transfer of adolescent patients with inflammatory bowel disease (IBD) to adult gastroenterology services is often troublesome. Failed transition can have adverse effects on the course of disease. We present two cases of adolescent IBD patients and their transition process. We identify requirements for successful transition and discuss potential barriers. We illustrate and emphasise that the medical teams on each side (paediatric and adult), as well as the patient and the parents should actively participate in the process of transition. The medical team should, preferably during a local transition clinic, regularly evaluate disease knowledge and self-management skills of the patient and make an individual transition plan to fill the gaps in knowledge and/or skills. Patients should be willing to learn to become more independent and parents should be stimulated to create an environment so that their child can actually try to become more independent. Lastly, we present the Rotterdam model for transition of IBD patients.