Publications by authors named "Axel DignaSS"

Introduction: Patients with ulcerative colitis (UC) and prior biologic failure may have reduced or delayed efficacy with subsequent advanced therapies. This analysis evaluated the efficacy and safety of ozanimod during the True North (TN) study and its open-label extension (OLE) in biologic-exposed patients with UC.

Methods: TN was a randomized, placebo-controlled 52-week trial (10-week induction, 42-week maintenance period).

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Background: The treatment options for chronic inflammatory bowel diseases (IBD) have been greatly expanded due to a better understanding of the underlying pathogenesis. A total of five classes of advanced treatment are available.

Objective: A practical overview of advanced treatment of IBD.

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Article Synopsis
  • Interleukin-23 inhibition is a promising treatment for ulcerative colitis, and guselkumab serves as a potent inhibitor targeting this pathway, aiming to assess its safety and effectiveness for patients who have not responded to traditional therapies.
  • The study included two phase 3 trials where adults with moderate to severe active ulcerative colitis were randomly assigned to receive guselkumab or a placebo, with a focus on clinical remission as the main outcome at specific time points.
  • Results showed that a significantly higher number of patients receiving guselkumab achieved clinical remission compared to those on placebo, highlighting its potential as an effective therapy for managing ulcerative colitis.
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Histologic mucosal healing (HMH) has emerged as a crucial target in managing inflammatory bowel disease, complementing the established goal of endoscopic mucosal healing. This review evaluates the significance of HMH in both Crohn's disease (CD) and ulcerative colitis (UC). In UC, strong evidence shows that HMH correlates with improved long-term outcomes, including reduced hospitalization rates, and decreased need for corticosteroids and colectomy.

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Background: Mirikizumab, a p19-directed interleukin-23 monoclonal antibody, has demonstrated induction of clinical remission at week 12 with maintenance through week 104 in patients with moderately-to-severely active ulcerative colitis (UC). Results are presented from the LUCENT-3 open-label extension study through week 152.

Methods: Of 868 LUCENT clinical trial program mirikizumab-treated induction patients, 544 were responders of whom 365 were rerandomized to mirikizumab maintenance.

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Article Synopsis
  • This study compared the effectiveness and safety of biologics and small molecules for treating adults with moderately-to-severely active ulcerative colitis (UC).
  • A systematic review and Bayesian network meta-analysis were conducted, including data from 30 studies for induction dosing and 22 for maintenance dosing of various treatments.
  • Results showed that while many treatments had similar efficacy, mirikizumab and upadacitinib stood out for improving clinical response and remission, suggesting mirikizumab is a promising option for ongoing treatment.
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Article Synopsis
  • * The most common outcomes assessed were clinical outcomes like remission and response (50.6%), with others including biomarkers, patient-reported outcomes, and safety measures, illustrating a shift towards more comprehensive evaluations using composite outcomes.
  • * Findings from the review will contribute to prioritizing key domains for developing a multi-component outcome measure in future CD research, highlighting the complexity and multidimensional nature of the disease.
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Background: Mucosal healing (MH) is an established treatment goal in inflammatory bowel disease (IBD). However, various definitions of MH exist. We aimed to identify how MH is defined in randomized controlled trials (RCTs) in ulcerative colitis (UC) and Crohn's disease (CD).

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Introduction: Although there are well-defined guidelines for the management of mild-to-moderate ulcerative colitis (UC), there are still unmet needs. For this reason, we conducted an international expert consensus to standardize the management of patients with mild-to-moderate UC and provide practical guidance to clinicians.

Areas Covered: Based on Delphi methodology, 15 statements were approved after two rounds of voting, addressing several aspects of disease management from sequencing to treatment duration, from monitoring to optimization techniques and safety profile.

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Background: Endoscopic remission has emerged as an important treatment target in Crohn's disease (CD) and has been associated with improvement in long-term outcomes. We examined the relationship between achievement of endoscopic remission and hospitalizations using pooled 52-week Phase III risankizumab and upadacitinib maintenance trials for patients with moderate-to-severely active CD.

Methods: Included patients received maintenance therapy after achieving a clinical response following a 12-week induction with risankizumab or upadacitinib.

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Background: Healing in Crohn's disease is complex and difficult to measure due to incongruencies between clinical symptoms and disease states. Mucosal healing (MH) and transmural healing (TH) are increasingly used to measure clinical improvement in Crohn's disease, but definitions of MH and TH can vary across studies, and their relationship to long-term outcomes is not clear. To address this knowledge gap, we performed a systematic literature review (SLR) to examine studies measuring MH and TH in Crohn's disease.

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Background/aims: Obtaining and maintaining corticosteroid-free remission are important goals of treatment for ulcerative colitis (UC). Characteristics associated with achieving corticosteroid-free remission were assessed in filgotinib-treated patients in SELECTION, a 58-week, phase 2b/3 trial in moderately to severely active UC.

Methods: This post hoc analysis used data from filgotinib-treated patients receiving corticosteroids at maintenance baseline in SELECTION.

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Article Synopsis
  • Mirikizumab, an anti-IL-23p19 antibody, shows effectiveness in managing symptoms of ulcerative colitis (UC) such as stool frequency, rectal bleeding, and abdominal pain in patients with moderately to severely active UC, as demonstrated in the LUCENT Phase 3 trials.
  • Patients treated with mirikizumab experienced significant symptom improvements by week 2 and maintained this symptom control through week 52, outperforming those on placebo.
  • Comprehensive symptom control, defined as a combination of individual patient-reported outcomes, was also achieved more frequently in mirikizumab-treated patients at both week 12 and week 52 compared to placebo.
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Fibrostenosis of the small bowel is common in patients with Crohn's disease. No consensus recommendations on definition, diagnosis and management in clinical practice are currently available. In this Consensus Statement, we present a clinical practice RAND/UCLA appropriateness study on the definition, diagnosis and clinical management of fibrostenosing Crohn's disease.

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Background: Crohn's disease and ulcerative colitis (UC) are inflammatory bowel diseases (IBD) characterized by a progressive nature of the disease resulting in subsequent intestinal damage, limited efficacy of current treatments and suboptimal disease management and a significant burden for patients.

Objectives: The IBD-PODCAST study aims to estimate the proportion of Crohn's disease and UC patients with suboptimal disease control (SDC) in a real-world setting.

Methods: A non-interventional and cross-sectional study was conducted across 103 sites in 10 countries (Austria, Belgium, Canada, Germany, Greece, Italy, Portugal, Spain, Turkey, and UK).

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Janus kinase (JAK) inhibitors and sphingosine 1 phosphate (S1P) receptor modulators are small molecule drugs (SMDs) approved for IBD treatment. Their use in clinical practice might be limited due to cardiovascular concerns. We aimed to provide guidance on risk assessment, monitoring, and management strategies, aiming to minimize potential cardiovascular risks of SMDs and to facilitate an adequate shared decision-making.

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Introduction: The small molecule and oral selective and reversible Janus kinase (JAK) inhibitor upadacitinib has been approved for the treatment of moderate to severe active Crohn's disease (CD) in adult patients since April 2023 by EMA/FDA.

Areas Covered: The approval is based on the two induction studies a maintenance study showing that upadacitinib induction and maintenance therapy was superior to placebo. The approval of upadacitinib in CD expands the therapeutic armamentarium for the management of inflammatory bowel diseases (IBD).

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Article Synopsis
  • Mirikizumab, a monoclonal antibody targeting interleukin-23, shows effectiveness in achieving and maintaining clinical remission in ulcerative colitis patients up to 104 weeks, particularly benefiting those who previously failed other biologic treatments.
  • Among patients who responded to mirikizumab after 52 weeks, high rates of clinical response (up to 96.7%) and remission (up to 98.3%) were observed at 104 weeks, showcasing the durable impact of the treatment.
  • The study indicated no new safety issues, with serious adverse events reported in only 5.2% of patients, confirming mirikizumab as a viable long-term treatment option for ulcerative colitis.
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Purpose: Chemotherapy is established as primary treatment in patients with stage IV colorectal cancer and unresectable metastases. Data from nonrandomized clinical trials have fueled persistent uncertainty if primary tumor resection (PTR) before chemotherapy prolongs survival. We investigated the prognostic value of PTR in patients with newly diagnosed stage IV colon cancer who were not amenable to curative treatment.

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  • Primary sclerosing cholangitis (PSC) is a chronic liver disease, and liver transplantation is the only established treatment; this study evaluates the effects of biologics in PSC patients with inflammatory bowel disease (IBD).
  • A systematic review and meta-analysis of six studies (including 411 patients) found no significant change in alkaline phosphatase levels with biologics, but a small increase in total bilirubin and a notable response in ulcerative colitis symptoms.
  • The study concludes that while biologics can help treat colitis associated with PSC, they do not improve liver biochemical markers and vedolizumab may worsen liver enzyme levels, indicating a need for more research.
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Background: Outcomes after ileocolonic resection in Crohn's disease [CD] are heterogeneous, and a clear definition of postoperative recurrence remains to be determined. Our Endpoints Working Group of the International Organization for the study of Inflammatory Bowel Disease [IOIBD] aimed to standardise postoperative outcomes, to discuss which endpoints should be used for postoperative clinical trials, and to define those which could be used in trials or registries.

Methods: Based on a systematic review of the literature, recommendations and statements were drafted and sent to all IOIBD members for a first round of voting.

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Background: STARDUST, a phase 3b randomised trial, compared ustekinumab therapeutic strategies in patients with Crohn's disease (CD) using early endoscopic assessment and treat-to-target (T2T) versus standard of care (SoC).

Aim: To assess the efficacy of ustekinumab extended treatment in a long-term extension (LTE) of up to 104 weeks with dosing adapted according to clinical, biomarker and endoscopy outcomes.

Methods: Adults with moderately-to-severely active CD received intravenous ustekinumab approximating 6 mg/kg at Week 0 and subcutaneous ustekinumab 90 mg at Week 8.

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