Predictors of response and disease course in patients with inflammatory bowel disease treated with biological therapy-the Danish IBD Biobank Project: protocol for a multicentre prospective cohort study

BMJ Open. 2020 Feb 25;10(2):e035756. doi: 10.1136/bmjopen-2019-035756.


Introduction: Inflammatory bowel diseases (IBDs) are chronic diseases of unknown cause characterised by a progressive and unpredictable disease course. In the last decade, biological treatment has become a cornerstone in the treatment of IBD. However, one-in-three-to-four patients do not respond to first-line biological agents and another third of patients see their response diminish over time. This highlights an unmet need for optimising the use of biologicals and the prediction of treatment response. Considering the multifaceted nature of IBD, we hypothesise that multiomics profiling of sequential samples from single patients could facilitate the discovery of predictive biomarkers of response to biological therapy and disease course.

Methods: This is a multicentre prospective cohort study which will enrol 840 biological-naïve patients with IBD who initiate biological therapy in a 3-year period. Primary outcomes are the occurrence of primary non-response (evaluated at weeks 14-16) and loss of response (evaluated during entire follow-up in patients who obtain partial or full response after induction period). Each patient will be followed up for their clinical data for at least 1 year or till the end of study period (up to 4 years). Blood and stool samples will be collected sequentially during the first year of biological treatment. Intestinal tissue will be sampled after 1 year of treatment and whenever an endoscopy is performed. Samples will undergo transcriptomic, proteomic and microbial DNA analyses. Omics data will be integrated with clinical data to identify a panel of predictive biomarkers of response to biological therapy and disease behaviour in patients with IBD.

Ethics and dissemination: Ethical approval has been obtained from the Danish Ethics Committee (H-18064178). Inclusion is ongoing at three study centres and will be initiated in two additional centres. Both positive and negative study results will be disseminated through peer-reviewed journals according to Strengthening the Reporting of Observational Studies in Epidemiology guidelines, as well as presented at international conferences.

Keywords: epidemiology; gastroenterology; inflammatory bowel disease.

Publication types

  • Multicenter Study
  • Observational Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Antibodies, Monoclonal / therapeutic use*
  • Biological Factors / therapeutic use*
  • Biological Specimen Banks
  • Biomarkers / metabolism*
  • Clinical Decision Rules*
  • Clinical Protocols
  • Disease Progression
  • Female
  • Follow-Up Studies
  • Genetic Markers
  • Genomics
  • Humans
  • Inflammatory Bowel Diseases / drug therapy*
  • Inflammatory Bowel Diseases / genetics
  • Inflammatory Bowel Diseases / metabolism
  • Logistic Models
  • Male
  • Middle Aged
  • Proportional Hazards Models
  • Prospective Studies
  • Protein Kinase Inhibitors / therapeutic use*
  • Proteome
  • Transcriptome
  • Treatment Outcome
  • Young Adult


  • Antibodies, Monoclonal
  • Biological Factors
  • Biomarkers
  • Genetic Markers
  • Protein Kinase Inhibitors
  • Proteome