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This is a multicentre, phase IV, prospective, interventional cohort study to evaluate the safety and effectiveness of switching from Originator (Humira®) to Biosimilar (Imraldi®) adalimumab in routine clinical practice. The study will include approximately 170 patients (100 patients treated in OLV Aalst and 70 patients treated in AZ Maria Middelares Gent). The study collects baseline clinical characteristics and assessment of parameters regarding switch and overall satisfaction. For patients who are willing to switch, there is a 12-month follow-up (study) period. During the follow-up (study) period patients will continue their treatment with adalimumab, i.e. Imraldi®, except if good clinical practice for the patient would oblige the treating physician to change treatment regimen.
Full description
The physicians and IBD nurses working with IBD patients in the participating centres will be informed by the Principal Investigator (PI) with up-to-date information regarding this trial and regarding biologicals and biosimilars, with a specific emphasis on the data available for Imraldi®. The information will be given at an especially organized meeting for this purpose, which will take about two hours. Only physicians attending this meeting will be able to participate in the study.
All IBD patients with a diagnosis of CD or UC, followed by a physician who attended the meeting and who are currently on maintenance therapy with Humira® for at least 8 weeks, are eligible to be invited to enter the study. The acceptance rate will be measured at baseline as the proportion of patients who accept the switch among all patients.
In the outpatient clinic, the subject of switching from Humira® to Imraldi® can be discussed with the patient. All patients on Humira® will be informed about the possibility to switch to Imraldi® and to participate in this trial. Irrespective of their intention to switch, all patients will be offered a standardized evaluation of their current disease status, with - if necessary - adjustment of their therapy. The information is initially given by the treating physician and - if necessary - can be further fine-tuned by the IBD-nurse or physician in consecutive follow-up visits. All patients will be provided with patient information and consent form. Informed consent must be obtained prior to baseline procedures. A unique subject identification number will be assigned to each patient and used throughout the study.
From all included patients (i.e. those agreeing to switch and those declining to switch), baseline clinical characteristics (year of birth, gender, year of IBD diagnosis, previous treatment and previous surgery, smoking status, Montreal Classification, co-immunomodulatory drug use and corticoid co-administration), Humira® treatment details and visual analogue scale assessment of parameters regarding switch and overall satisfaction with current treatment, will be collected.
From the patients willing to switch, prospective data on effectiveness and safety and subjective satisfaction on different aspects of Imraldi® use, will be obtained at 3 predefined timepoints: 8 weeks, 6 and 12 months after switch to Imraldi®.
The patients who switch to Imraldi® will have blood samplings at 4 different timepoints (baseline, Week 8, Month 6 and Month 12) for analysis of ADA trough level and anti-drug antibodies, peripheral blood count (plus leucocyte differentiation) and CRP. At the same timepoints, faecal calprotectin will be measured, CDAI / Mayo clinical subscore will be assessed and patient weight recorded. A PGA will be performed, in order to get a subjective feeling of disease status/response, in order to avoid unnecessary further examinations.
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130 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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