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BACKGROUND: Crohn's disease (CD) leads to chronic inflammation of the gastrointestinal tract that significantly impacts patients over an entire lifetime. The decrease in health-related quality of life (HRQoL) may have an impact on patient’s level of functioning, work productivity, and other activities. The goal of treatment for CD is clinical remission based on clinical, endoscopic, and biological parameters. There has been introduction of new treatments in recent years. A review was conducted to assess the impact of non-remission on HRQoL and patient reported outcomes (PROs) in patients with CD. METHODS: Literature search of English language publications from 2015-2021 was conducted in Embase® and MEDLINE®. Real world studies meeting predefined criteria (adult CD patients in non-remission presenting data for HRQoL or PROs) were included in the review. Data on study characteristics, disease characteristics, HRQoL and PROs were extracted from the included studies. RESULTS: The review retrieved 1384 records from which only 10 studies presented data for HRQoL and/or PROs. The definition of remission varied across the included studies. In most studies (90%), remission was defined using Harvey-Bradshaw Index and/or Crohn's disease activity index. Different tools were used to assess HRQoL and sleep quality. In a study, no normalization of long-term HRQoL was observed in patients who did not achieve clinical remission. A negative correlation was found between utility indexes & disease activity in a study (ρ = -0.586, p < 0.001). A significant correlation was also observed in a study between HRQoL and disease activity where HRQoL in patients with active disease was poor compared to patients in remission. The HRQoL domains of anxiety, depression and pain were impacted in non-remitters. The mean IBDQ score was 189 ± 16.1 in remitters and 145 ± 15.9 in non-remitters (p < 0.001). A strong negative correlation between IBDQ and disease activity was reported by a study. In a study, work productivity was moderately but significantly correlated with disease activity indicating reduction in work productivity of patients with active disease (mild, moderate, and severe) compared to remitters. In another study, severe disease activity was significantly associated with an increased amount of fragmented sleep. Patients with moderate to severe disease had a significantly longer time awake after falling asleep compared to patients in remission or with mild disease activity (65.8 minutes, 44.3 minutes, 49.1 minutes, respectively). Patients with active disease also reported poor sleep quality and suffered from excessive daytime sleepiness. There was a significant difference in the median sleep efficiency for patients with moderate to severe disease compared to patients with remission. CONCLUSION: This targeted review found in general that not being able to achieve/maintain remission had an impact on the HRQoL of patients with CD. Patients not achieving remission were associated with decreased work productivity, poor sleep quality, lower sleep efficiency, daytime sleepiness and poor HRQoL. However, studies assessing HRQoL and PROs in the real-world are scarce, with discrepancies based on remission status. Further research is warranted, and health care providers and payers should consider the impact of therapies on the improvement in HRQoL of patients with CD.

BACKGROUND: The incidence of Crohn’s disease (CD) has been rising globally. Patients with CD are at an increased risk of mortality compared to general population. The goal of treatment for CD is clinical remission based on clinical, endoscopic, and biological parameters. There has been introduction of new treatments in recent years. A review was conducted to assess the impact of non-remission on cost and resource use in patients with CD. METHODS: Literature search of English language publications from 2015-2021 was conducted in Embase® and MEDLINE®. Real world studies meeting predefined review criteria were included and data were extracted in pre-defined extraction form. RESULTS: The review retrieved 1384 records; 24 fulfilled eligibility criteria. The definition of remission varied across the included studies. In most studies (66.67%), remission was defined using Crohn's disease activity index and/or Harvey-Bradshaw Index. Among included evidence, 21 studies reported proportion of non-remitters undergoing surgery, 11 studies reported the data for hospitalizations and 2 studies reported cost of treatment for non-remitters. Proportion of non-remitters requiring hospitalizations ranged from 6.7% to 30.6%. Univariate analysis suggested that deep remission was significantly associated with lower hazards for being hospitalized (HR: 0.18 [95%CI: 0.08, 0.25]); suggesting a significantly higher risk of hospitalization in non-remitters. In a study, the mean duration of cumulative hospital stays was significantly higher in patients with a pathological MRI (19.7 ± 7.4 days) compared to patients in deep remission (0.75 ± 0.52 days, p < 0.05). The proportion of non-remitters undergoing surgery ranged from 1.5% to 57%. The proportion of patients undergoing surgery were high in non-remitters compared to remitters. Hematopoietic stem cell transplantation was needed in 4.1% non-remitters and repeat surgery in 3.5% non-remitters. In a study, surgery was required by 11.6% patients with no healing (due to refractory strictures, penetrating complications, and severe refractory disease) and 11.5% patients presenting with mucosal healing (due to structuring and penetrating complications), while no patient with transmural healing required surgery. Non-remission led to higher total costs, especially in patients undergoing surgery or dependent on in-hospital administrated drugs. The costs were 4 to 6 times higher in patients in an active period and 19 times higher for patients requiring surgery compared to patients in remission. Adjusted total indirect cost among participants with disease remission was reduced by 60% compared to patients with active disease (€243.44 per patient per month, p < 0.001). The number of consultations in the last month, monthly consultation cost, current treatment cost, amount of benefits from public organisations, and self-reported expenses on all categories were significantly higher in non-remitters compared to patients in remission. CONCLUSION: This targeted review found in general that not being able to achieve/maintain remission has an impact on the economic outcomes of patients with CD. Non-remission in patients with CD was associated with an increased number of hospitalizations and surgeries. The cost of treatment for non-remitters was significantly higher than patients in remission. None of the studies presented data for patients who respond to treatment but are not able to achieve remission. Further research is warranted in these patients.

BACKGROUND: Crohn’s disease (CD) and ulcerative colitis (UC) are the two most prevalent forms of inflammatory bowel disease (IBD) causing frequent diarrhea, rectal bleeding, fatigue, and abdominal pain. IBD may result in complications requiring hospitalizations and surgical procedure, hence IBD can negatively impact patients’ quality of life, work productivity, and increase societal economic burden. Limited data exists assessing epidemiologic trends and population-level health outcomes among patients with IBD in Sweden. This study assessed the trends in annual incidence and prevalence of CD, annual inpatient and outpatient visits, employment status and sickness absence among adults with IBD in Sweden from 2001 to 2017. METHODS: Data were acquired from four nationwide registers provided by the National Board of Health and Welfare in Sweden and linked through the unique personal identity number. Individuals aged ≥18 years with ≥2 primary diagnoses of CD (ICD-10 K50) or ≥2 primary diagnoses of UC (ICD-10 K51) from 01/01/2001 to 12/30/2017 were selected. Date of the first CD or UC diagnosis was designated as index date. All individuals were followed until death, lost to follow up or end of study. RESULTS: A total of 30,895 patients with CD and 50,415 with UC were included in the analysis, respectively. The mean follow-up for patients was 10.1 (±5.33) and 10.4 (±5.21) years for CD and UC. The mean (±SD) age among CD patients was 40.4 (±18.4) years and 42.6 (±18.2) years for UC. The most frequently observed comorbid condition was noninfective enteritis and colitis for patients with CD (24.2%) and UC (15.7%). The annual incidence of CD was 10 per 100,000 person-years in 2017, while the incidence of UC was 3 per 100,000 in 2017. 40.6% of CD patients and 30.8% of UC patients had ≥ 1 inpatient admission during 1-year post-index period, of which 53.5% and 51.2% had inpatient care lasting more than 1 week. Among patients with ≥ 1 outpatient services (CD: n = 30,675; UC: n = 50,183), 41.7% and 29.2% of patients had more than 5 visits during 1-year post-index period. Among patients who were eligible for employment and disability benefit analyses who had at least 1-year follow-up (CD: n = 23,731; UC: n = 39,391), 27.9% of CD patients and 23.1% of UC patients were not in employment; among those who were in employment (CD: n = 17,039; UC: n=30,302), 30% and 24.6% reported sickness absence within the calendar year after the index date, respectively. CONCLUSION: Findings from this study of a large national cohort of patients followed for many years demonstrates the significant epidemiological, clinical, and socioeconomic impact of patients with CD and UC. Further research is needed to understand underlying factors driving inpatient admissions among patients with IBD. With an increasing annual prevalence, IBD continues to impose a substantial public health burden to patients, their families and health care services.