Publications by authors named "Romain Altwegg"

Background And Aims: We compared the effectiveness of tofacitinib and ustekinumab in patients with ulcerative colitis (UC) previously exposed to at least one anti-TNF agent.

Methods: In this multicenter real-world evidence study, we consecutively included UC patients ≥18 years-old, previously exposed to anti-TNF therapy, with partial Mayo score >2 and, starting tofacitinib or ustekinumab. All the comparisons were performed using propensity score analyses.

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Inflammatory bowel diseases, including Crohn's disease and ulcerative colitis, raise ongoing challenges in clinical management due to their variable courses and impact on patient quality of life. The emergence of advanced therapies, from biologics to small molecules, has prompted the need for effective sequencing strategies to optimize patient outcomes. To this date, there is no algorithm for treatment sequencing and physicians must select the safest and most effective treatment according to each individual patient.

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Background & Aims: Tofacitinib and upadacitinib are Janus kinase (JAK) inhibitors that are increasingly used for the treatment of acute severe ulcerative colitis (ASUC). However, comparative analyses of safety and effectiveness have not been performed for their use in this setting.

Methods: This multicenter, retrospective study enrolled hospitalized adult patients treated with tofacitinib or upadacitinib for ASUC between January 2019 and June 2024.

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Background: A subset of patients with ileal Crohn's disease (CD) are colonized with adherent-invasive Escherichia coli (AIEC).

Objective: This prospective trial tested the efficacy of antibiotics for endoscopic response in CD patients colonized with AIEC.

Design: Patients with endoscopically active, ileal CD, colonized with AIEC, were randomized to receive oral ciprofloxacin and rifaximin or double placebo for 12 weeks.

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Background: While three Janus kinase inhibitors (JAKi) have demonstrated efficacy in ulcerative colitis (UC), scarce data exist regarding JAKi intraclass switching.

Aim: To evaluate the effectiveness and safety of a second JAK inhibitor in UC.

Methods: This was a multicentre, retrospective, observational cohort including patients with moderate to severe UC who received a second-line of JAKi after failure or intolerance of a first.

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Background And Aims: Real-life data regarding inflammatory bowel disease (IBD) evolution after switch from intravenous infliximab (IV-IFX) to subcutaneous infliximab (SC-IFX) is necessary. The aim of this prospective multicenter cohort study was to describe the persistence, effectiveness and tolerance of SC-IFX after switch from IV-IFX.

Methods: IBD patients in steroid-free clinical remission for at least 6 months on IV-IFX were enrolled in a prospective national French cohort when they switched to SC-IFX.

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This multicenter retrospective study examines 18 patients with difficult-to-treat inflammatory bowel diseases who received advanced combination treatment (ACT) with selective JAK1 inhibitors and biologics, totaling 11.8 patient-years of exposure. Treatment was discontinued in three patients due to adverse events.

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Background: Real-world effectiveness and safety of upadacitinib in patients with Crohn's disease (CD) remain unclear.

Aims: This study aimed to evaluate the effectiveness and safety of upadacitinib in a real-world cohort.

Methods: From September 2022 to June 2024, all consecutive patients with refractory luminal CD treated with once daily upadacitinib 45 mg in 29 French GETAID centres were retrospectively included.

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Background: It is unknown which maintenance therapy is the most effective option for patients admitted for an acute severe ulcerative colitis (ASUC) episode responding to intravenous steroids.

Methods: We conducted a multicentre, parallel-group, open-label randomised controlled trial among 23 French centres in thiopurine and biologics-naïve adults admitted for ASUC responding to intravenous steroids. Eligible patients were randomly assigned to receive infliximab (IFX) and azathioprine (AZA) with a 7-day steroid tapering scheme (IFX+AZA arm) or AZA and conventional standardised steroid tapering regimen (AZA arm).

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Background & Aims: Breast cancer is the most common malignancy observed in patients with inflammatory bowel diseases (IBD). The aim of our study was to evaluate incident cancer rate (recurrence or new-onset cancer) in a cohort of patients with IBD with a history of breast cancer according to the subsequent IBD treatment provided.

Methods: A multicenter retrospective study included consecutive patients with IBD with prior breast cancer.

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Background And Aims: Achieving deep remission, encompassing clinical, endoscopic, and biological remission, is the goal in managing Crohn's disease (CD). The role of histological remission (HR) remains unclear. This study aimed to examine the impact of histological inflammation on clinical relapse risk in CD and explore the relationship between histology, endoscopic scores, and biomarkers.

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Article Synopsis
  • * In total, 36 patients were treated with a single local injection, and results showed that 47.2% achieved clinical remission at 24 weeks, while 41.6% achieved combined remission.
  • * These findings suggest that approximately half of the patients had a successful response to darvadstrocel therapy in a real-world setting, indicating its potential effectiveness for treating this condition.
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Background: Specific studies on the impact of ulcerative colitis (UC) and bowel urgency (BU) on disability and quality of life (QoL) of patients on advanced therapies are missing.

Methods: Clinical and therapeutic management data were collected by Gastroenterologists from adult patients with UC treated with advanced therapies. Patients reported outcomes on QoL were collected using patient-reported questionnaires.

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  • A study was conducted with 941 IBD patients to assess their satisfaction with different adalimumab preparations, including biosimilars and the original brand, Humira.
  • The average satisfaction rating was 8.5 out of 10, with the highest satisfaction observed for Humira and its biosimilars like Hulio and Amgevita, where scores were notably above 8.5.
  • Injection site reactions were reported by 31.8% of patients, and a portion of those previously treated with another adalimumab had discontinued due to side effects; overall, patient satisfaction remained high despite these issues.
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Introduction: The aim of this study was to compare the impact of the depth of myotomy (selective inner layer myotomy (SIM) vs. full-thickness myotomy (FTM)) on the outcome of patients treated with POEM for achalasia.

Methods: This was a retrospective, observational, conducted in two tertiary centers between October 2018 and September 2022.

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Background: Both vedolizumab and ustekinumab can be considered for the treatment of ulcerative colitis [UC], but head-to-head trials are lacking.

Aim: We aimed to compare the effectiveness of vedolizumab and ustekinumab after anti-tumour necrosis factor [anti-TNF] failure in UC patients.

Patients And Methods: In this multicentre study, we included consecutive adult patients with UC, with partial Mayo score >2 and prior anti-TNF exposure, treated with vedolizumab or ustekinumab between January 2019 and August 2022.

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Background & Aims: The aim of this study was to assess the long-term effectiveness and safety of risankizumab maintenance treatment in a large real-world cohort of patients with Crohn's Disease (CD).

Methods: From May 2021 to August 2023, all consecutive patients with CD treated with risankizumab in 25 GETAID centers have been retrospectively included. The primary endpoint was steroid-free clinical remission (Harvey Bradshaw Index [HBI] <5) at 52 weeks.

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Background: While the efficacy of tofacitinib to induce and maintain clinical and endoscopic remission is well established in ulcerative colitis (UC), little is known about its efficacy to induce histological remission.

Methods: We conducted a retrospective multicentric cohort study. UC patients ≥ 16 years treated by tofacitinib in whom histological activity has been evaluated before and after induction were eligible.

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Article Synopsis
  • Bevacizumab, a monoclonal antibody, is used to treat hereditary hemorrhagic telangiectasia (HHT), but this is the first randomized trial investigating its effectiveness.
  • In a double-blind study involving 24 patients, those treated with bevacizumab showed a greater decrease in blood transfusions compared to the placebo group, with significant improvements in hemoglobin levels over six months.
  • Despite some positive results, the trial was underpowered, meaning more research is needed to confirm that bevacizumab helps reduce the need for blood transfusions in HHT patients, especially in those exposed to higher doses.
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Introduction: Extraintestinal manifestations (EIMs) of inflammatory bowel disease (IBD) are challenging clinical situation. No prospective study assessed remission risk factors of EIMs. The aim of this study was to prospectively investigate the epidemiology, risk factors of EIM occurrence, and EIM remission in a large IBD cohort.

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Article Synopsis
  • Therapeutic drug monitoring (TDM) for anti-TNF-α treatments, like infliximab and adalimumab, is crucial for managing inflammatory diseases, and this study assessed the effectiveness of different serum measurement assays.
  • Four immunoassays (Promonitor, i-Track10, ez-track1, and Lisa Tracker ELISA) were compared, showing varying levels of agreement, with Promonitor performing particularly well for infliximab and adalimumab measurements.
  • Despite acceptable performance for monitoring the drugs, the study advises using the same assay consistently for each patient due to imperfect concordance between the methods, particularly for infliximab.
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Crohn's disease (CD) is associated with an increased risk of small bowel neoplasia (SBN). We aimed to assess preoperative predictors of SBN in CD patients. We conducted a retrospective case-control study including CD patients who underwent surgery: cases were diagnosed with SBN on histopathological analysis and controls had no neoplasia.

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  • Fatigue is a common issue in patients with inflammatory bowel disease (IBD), with 54.1% experiencing fatigue and 37.1% reporting severe fatigue.
  • Patients with active IBD experience significantly higher levels of fatigue compared to those with inactive disease.
  • Key factors affecting fatigue include age, gender, sick leave, physical pain, emotional well-being, and sleep quality, suggesting that a holistic treatment approach is essential for managing IBD-related fatigue.
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Objectives: The emergence of biologics has improved the course of inflammatory bowel diseases (IBD) in the elderly population despite a potential higher risk of infections. We conducted a one-year, prospective, multicenter, observational study to determine the frequency of occurrence of at least one infectious event in elderly IBD patients under anti-TNF therapy compared with that in elderly patients under vedolizumab or ustekinumab therapies.

Methods: All IBD patients over 65 years exposed to anti-TNF, vedolizumab or ustekinumab therapies were included.

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