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Search: WFRF:(Marsal Jan)

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1.
  • 2019
  • Journal article (peer-reviewed)
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2.
  • Bergqvist, Viktoria, et al. (author)
  • Switching from originator infliximab to the biosimilar CT-P13 in 313 patients with inflammatory bowel disease
  • 2018
  • In: Therapeutic Advances in Gastroenterology. - : SAGE Publications. - 1756-283X .- 1756-2848. ; 11
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: As the patents of originator biologics are expiring, biosimilar versions are becoming available for the treatment of inflammatory bowel disease (IBD). However, published switch studies of the first infliximab biosimilar, CT-P13, have delivered ambiguous results that could be interpreted as showing a trend towards inferior effectiveness in Crohn's disease (CD) compared with ulcerative colitis (UC). The aim of this study was to investigate the effectiveness and safety of switching IBD patients from treatment with Remicade to CT-P13.METHODS: In this prospective observational cohort study, all adult IBD patients on Remicade treatment, at four hospitals, were switched to CT-P13. The primary endpoint was change in clinical disease activity at 2, 6, and 12 months after the switch. Secondary endpoints were subgroup analyses of patients with and without concomitant immunomodulators; changes in biomarkers, quality of life, drug trough levels and anti-drug antibodies (ADAbs); and adverse events.RESULTS: A total of 313 IBD patients were switched (195 CD; 118 UC). There were no significant changes in clinical disease activity, quality of life, biomarkers (except a small but significant increase in albumin in CD) including F-calprotectin, drug trough levels, or proportion of patients in remission. Disease worsening rates were 14.0% for CD and 13.8% for UC; and 2.7% developed ADAbs and 2.2% developed serious adverse events.CONCLUSIONS: This is the largest study of switched IBD patients published to date, and it demonstrates that switching from Remicade to CT-P13 may be done with preserved therapeutic effectiveness and safety in both CD and UC.
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3.
  • Eriksson, Carl, 1981-, et al. (author)
  • Long-term effectiveness of vedolizumab in inflammatory bowel disease : a national study based on the Swedish National Quality Registry for Inflammatory Bowel Disease (SWIBREG)
  • 2017
  • In: Scandinavian Journal of Gastroenterology. - : Taylor & Francis. - 0036-5521 .- 1502-7708. ; 52:6-7, s. 722-729
  • Journal article (peer-reviewed)abstract
    • Objectives: Clinical trials have demonstrated the efficacy of vedolizumab in inflammatory bowel disease (IBD). However, these findings may not reflect the clinical practice. Therefore, we aimed to describe a vedolizumab-treated patient population and assess long-term effectiveness.Materials and methods: Patients initiating vedolizumab between 1 June 2014 and 30 May 2015 were identified through the Swedish National Quality Registry for IBD. Prospectively collected data on treatment and disease activity were extracted. Clinical remission was defined as Patient Harvey Bradshaw index<5 in Crohn's disease (CD) and Patient Simple Clinical Colitis Activity index<3 in ulcerative colitis (UC).Results: Two-hundred forty-six patients (147CD, 92 UC and 7 IBD-Unclassified) were included. On study entry, 86% had failed TNF-antagonist and 48% of the CD patients had undergone1 surgical resection. After a median follow-up of 17 (IQR: 14-20) months, 142 (58%) patients remained on vedolizumab. In total, 54% of the CD- and 64% of the UC patients were in clinical remission at the end of follow-up, with the clinical activity decreasing (p<.0001 in both groups). Faecal-calprotectin decreased in CD (p<.0001) and in UC (p=.001), whereas CRP decreased in CD (p=.002) but not in UC (p=.11). Previous anti-TNF exposure (adjusted HR: 4.03; 95% CI: 0.96-16.75) and elevated CRP at baseline (adjusted HR: 2.22; 95% CI: 1.10-4.35) seemed to be associated with discontinuation because of lack of response. Female sex was associated with termination because of intolerance (adjusted HR: 2.75; 95% CI: 1.16-6.48).Conclusion: Vedolizumab-treated patients represent a treatment-refractory group. A long-term effect can be achieved, even beyond 1 year of treatment.
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4.
  • Alyamani, Manar, et al. (author)
  • Alkaline sphingomyelinase (NPP7) impacts the homeostasis of intestinal T lymphocyte populations
  • 2023
  • In: Frontiers in Immunology. - : Frontiers Media SA. - 1664-3224. ; 13
  • Journal article (peer-reviewed)abstract
    • Background and aim: Alkaline sphingomyelinase (NPP7) is expressed by intestinal epithelial cells and is crucial for the digestion of dietary sphingomyelin. NPP7 also inactivates proinflammatory mediators including platelet-activating factor and lysophosphatidylcholine. The aim of this study was to examine a potential role for NPP7 in the homeostasis of the intestinal immune system. Methods: We quantified the numbers of B-lymphocytes, plasma cells, T-lymphocytes including regulatory T-lymphocytes (Tregs), natural killer cells, dendritic cells, macrophages, and neutrophils, in the small and large intestines, the mesenteric lymph nodes and the spleens of heterozygous and homozygous NPP7 knockout (KO) and wildtype (WT) mice. Tissues were examined by immunohistochemistry and stainings quantified using computerized image analysis. Results: The numbers of both small and large intestinal CD3ε+, CD4+, and CD8α+ T-lymphocytes were significantly higher in NPP7 KO compared to WT mice (with a dose-response relationship in the large intestine), whereas Treg numbers were unchanged, and dendritic cell numbers reduced. In contrast, the numbers of CD3ε+ and CD4+ T-lymphocytes in mesenteric lymph nodes were significantly reduced in NPP7 KO mice, while no differences were observed in spleens. The numbers of B-lymphocytes, plasma cells, natural killer cells, macrophages, and neutrophils were similar between genotypes. Conclusion: NPP7 contributes to the regulation of dendritic cell and T-lymphocyte numbers in mesenteric lymph nodes and both the small and large intestines, thus playing a role in the homeostasis of gut immunity. Although it is likely that the downstream effects of NPP7 activity involve the sphingomyelin metabolites ceramide and spingosine-1-phosphate, the exact mechanisms behind this regulatory function of NPP7 need to be addressed in future studies.
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6.
  • Andréasson, Kristofer, et al. (author)
  • Intestinal dysbiosis is common in systemic sclerosis and associated with gastrointestinal and extraintestinal features of disease
  • 2016
  • In: Arthritis Research and Therapy. - : Springer Science and Business Media LLC. - 1478-6354 .- 1478-6362. ; 18:1
  • Journal article (peer-reviewed)abstract
    • Background: Recent evidence suggests a link between autoimmunity and the intestinal microbial composition in several rheumatic diseases including systemic sclerosis (SSc). The objective of this study was to investigate the prevalence of intestinal dysbiosis in SSc and to characterise patients suffering from this potentially immunomodulatory deviation. Methods: This study consisted of 98 consecutive patients subject to in-hospital care. Stool samples were analysed for intestinal microbiota composition using a validated genome-based microbiota test (GA-map™ Dysbiosis Test, Genetic Analysis, Oslo, Norway). Gut microbiota dysbiosis was found present as per this standardised test. Patients were examined regarding gastrointestinal and extraintestinal manifestations of SSc by clinical, laboratory, and radiological measures including esophageal cineradiography, the Malnutrition Universal Screening Tool (MUST), levels of plasma transthyretin (a marker of malnutrition) and faecal (F-) calprotectin (a marker of intestinal inflammation). Results: A majority (75.5%) of the patients exhibited dysbiosis. Dysbiosis was more severe (rs=0.31, p=0.001) and more common (p=0.013) in patients with esophageal dysmotility. Dysbiosis was also more pronounced in patients with abnormal plasma levels of transthyretin (p=0.045) or micronutrient deficiency (p=0.009). In 19 patients at risk for malnutrition according to the MUST, 18 exhibited dysbiosis. Conversely, of the 24 patients with a negative dysbiosis test, only one was at risk for malnutrition. The mean±SEM levels of F-calprotectin were 112±14 and 45±8μg/g in patients with a positive and negative dysbiosis test, respectively. Dysbiosis was more severe in patients with skin telangiectasias (p=0.020), pitting scars (p=0.023), pulmonary fibrosis (p=0.009), and elevated serum markers of inflammation (p<0.001). However, dysbiosis did not correlate with age, disease duration, disease subtype, or extent of skin fibrosis. Conclusions: In this cross-sectional study, intestinal dysbiosis was common in patients with SSc and was associated with gastrointestinal dysfunction, malnutrition and with some inflammatory, fibrotic and vascular extraintestinal features of SSc. Further studies are needed to elucidate the potential causal relationship of intestinal microbe-host interaction in this autoimmune disease.
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7.
  • Andréasson, Kristofer, et al. (author)
  • Mycophenolate mofetil for systemic sclerosis : drug exposure exhibits considerable inter-individual variation-a prospective, observational study
  • 2020
  • In: Arthritis Research & Therapy. - : BMC. - 1478-6354 .- 1478-6362. ; 22
  • Journal article (peer-reviewed)abstract
    • Objective: Mycophenolate mofetil (MMF) is an established therapy for systemic sclerosis (SSc), but its pharmacokinetics in this disease remains unexplored. We have investigated drug exposure in MMF-treated patients with SSc in relation to clinical features of the disease and common concomitant drugs.Methods: This study was predefined to include 35 MMF-treated SSc patients who were using MMF at a fixed dose of 0.5, 1.0 or 1.5g twice daily since at least 3months. The 12-h drug exposure of the active MMF metabolite mycophenolic acid (MPA) was estimated by repeated analysis of plasma MPA over a 6-h period. This 12-h drug exposure was dose normalised to a daily intake of 3g MMF (MPA_AUC(3g)) in order to compare subjects using MMF at different doses. Drug exposure was analysed in reference to the clinical characteristics including body weight, renal function, autoantibodies, intestinal dysbiosis, intestinal inflammation assessed by faecal (F)-calprotectin, intestinal symptoms assessed by the University of California Los Angeles Scleroderma Trial Consortium Gastrointestinal Tract Instrument 2.0 and concomitant drug usage including proton-pump inhibitors (PPI).Results:Thirty-four out of 35 study participants completed the study. The mean daily MMF dose was 2.1g. Drug exposure expressed as MPA_AUC(3g) varied up to 8-fold between patients (median 115, range 27-226mg h/L).MPA_AUC(3g) was inversely related to body weight (r(s)=-0.58, p<0.001) and renal function (r(s)=-0.34, p=0.054). Anti-topoisomerase-1 antibodies and male sex were associated with lower MPA_AUC(3g) (87 vs 123 and 71 vs 141; p=0.008 and p=0.015, respectively). MPA_AUC(3g) was inversely related to the intestinal abundance of lactobacilli and to F-calprotectin (r(s)=-0.54, p=0.004; r(s)=-0.36, p=0.034), but not to gastrointestinal symptoms. MPA_AUC(3g) was inversely related to PPI usage (r(s)=-0.45, p=0.007). We found no association between MPA_AUC(3g) and disease subtype, disease duration or disease activity.Conclusion: MMF-treated SSc patients exhibit considerable inter-individual variation in drug exposure, and lower MPA levels were primarily found in PPI users with poor prognostic factors. Body weight, renal function, sex, serology, gastrointestinal manifestations and/or measuring individual MPA exposure should be considered when using MMF for SSc.
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9.
  • Angelison, Leif, et al. (author)
  • Short and long-term efficacy of adalimumab in ulcerative colitis : a real-life study
  • 2020
  • In: Scandinavian Journal of Gastroenterology. - : Informa UK Limited. - 0036-5521 .- 1502-7708. ; 55:2, s. 154-162
  • Journal article (peer-reviewed)abstract
    • Objective: Randomized controlled trials have shown the effectiveness of Adalimumab in ulcerative colitis. However, real-life data is scarce. We aimed to assess the effectiveness and predictive factors of effectiveness in a large Swedish cohort. Methods: Retrospective capture of data from local registries at five Swedish IBD centers. Clinical response and remission rates were assessed at three months after starting adalimumab treatment and patients were followed until colectomy or need for another biological. Bio-naive patients were compared to bio experienced patients. Factors associated with short term responses were assessed using logistic regression model. Failure on drug was assessed using a Cox proportional hazards regression model. Results: 118 patients (59 males, 59 females) with median age 34.4 years (IQR 27.0–51.4) were included. Median disease duration was 4.3 years (IQR 2.0–9.0) and follow-up 1.27 years (IQR 0.33–4.1). A clinical corticosteroid-free remission was achieved by 38/118 (32.2%) and response by 91/118 (77%) after three months. CRP >3 mg/l at baseline was predictive of short-term failure to reach corticosteroid-free remission. Factors associated with survival on the drug were male gender, CRP <3 mg/l and absence of primary sclerosing cholangitis. Patients >42 years of age at diagnosis were more likely to respond to adalimumab and remain on treatment compared to patients <20 years. Conclusions: An elevated CRP-level, primary sclerosing cholangitis and female gender were predictors of treatment failure. In contrast older age at diagnosis was a predictor of short-term clinical response and drug survival. Prior infliximab failure, regardless of cause, did not influence the outcome of adalimumab treatment.
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  • Result 1-10 of 43
Type of publication
journal article (41)
doctoral thesis (1)
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peer-reviewed (37)
other academic/artistic (6)
Author/Editor
Marsal, Jan (41)
Andréasson, Kristofe ... (11)
Agace, William (7)
Hertervig, Erik (6)
Lindqvist, Elisabet (6)
Halfvarson, Jonas, 1 ... (5)
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Olofsson, Tor (5)
Kadivar, Mohammad (5)
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