Primary aims |
• Evaluate IBD treatment regimens being used in clinical practice |
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• Examine outcomes of biosimilar use, including nonmedical switches from originator biologic, reverse switches back to the originator, and cross-switches between biosimilars |
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• Examine populations underrepresented in phase III clinical trials |
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• Evaluate optimal duration, timing, sequence, and combination of IBD therapy(ies) to achieve clinical response and clinical remission |
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• Evaluate endoscopic outcomes |
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• Estimate adverse event frequency and severity and describe management practices |
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• Evaluate outcomes related to enrollment in, utilization of, and satisfaction with patient support programs |
Secondary aims |
• Describe response rates and safety in special populations |
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• Evaluate drug–drug interactions |
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• Evaluate health outcomes and durability of clinical response/clinical remission and time to relapse/treatment failure |
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• Evaluate optimal dosing of therapy (eg, escalation of dosing of biologics) |
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• Determine predictors of treatment response |
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• Evaluate outcomes and durability of clinical response specifically among those with extraintestinal manifestations |
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• Evaluate corticosteroid use |
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• Evaluate malignancies |
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• Evaluate opportunistic infections |
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• Evaluate paradoxical reactions to therapies |
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• Evaluate PROs measures |
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• Evaluate surgeries and hospitalizations |