M.J. Pierik

Bak, M. T. J., Demers, K., van Ruler, O., Pierik, M. J., van Dijk, D. P. J., van der Bilt, J. D. W., Romberg-Camps, M., Dijkstra, G., Duijvestein, M., van der Marel, S., Maljaars, P. W. J., Buskens, C. J., Bakers, F. C. H., Brecheisen, R., Bongers, B. C., de Witte, D., Jansen, S. V., Jharap, B., Horjus, C. S., ... Dutch Initiative on Crohn and Colitis – Surgery (ICC-S) (2026). Preoperative body composition parameters are associated with postoperative outcomes in patients with Crohn's disease. Clinical gastroenterology and hepatology, 24(5), 1413-1423. https://doi.org/10.1016/j.cgh.2025.06.039

Verleye, L. M. M., Pierik, M. J., de Vries, A. C., van Schaik, F. D. M., van der Meulen-de Jong, A. E., van Dop, W. A., Lowenberg, M., Visschedijk, M. C., Naber, M. R., Bouwknegt, D. G., Romkens, T. E. H., Bodelier, A. G. L., Voorneveld, P. W., Oldenburg, B., Derikx, L. A. A. P., Duijvestein, M., Mujagic, Z., & Dutch Initiative Crohn and Colitis (2026). Prospective real-world experience with risankizumab in difficult-to-treat Crohn's disease: results from the Dutch Initiative on Crohn and Colitis Registry. Inflammatory Bowel Diseases. Advance online publication. https://doi.org/10.1093/ibd/izag045

Okegunna, Y., Sekar, M., Adriaans, G. M. C., Cloots, M. J. J., Zhang, J., Aliu, A., Hendrix, E. M. B., Romberg-Camps, M., Rezazadeh Ardabili, A., Mujagic, Z., Dekker, A., Pierik, M. J., & Fijten, R. R. R. (2026). Advancing Predictive Modeling of Inflammatory Bowel Disease (IBD) Flares: A Data-Driven Approach Using Lifestyle and Psychosocial Factors from a Remote Monitoring Platform. Digestive Diseases and Sciences. Advance online publication. https://doi.org/10.1007/s10620-026-09750-8

Naber, M. R., van der Meulen, A. E., Voorneveld, P. W., Veltkamp, S. H. C., van Bodegraven, A. A., Bodelier, A., Mujagic, Z., Pierik, M., Verleye, L. M. M., Duijvestein, M., Bouwknegt, D. G., Visschedijk, M. C., Srivastava, N., West, R. L., Oldenburg, B., Lowenberg, M., van Schaik, F. D. M., & Dutch ICC Registry (2026). Filgotinib Is an Effective and Safe Treatment Option for Difficult-To-Treat Ulcerative Colitis: Real-World Evidence of the Dutch Initiative on Crohn and Colitis (ICC) Registry. United European Gastroenterology Journal, 14(1), Article e70141. https://doi.org/10.1002/ueg2.70141

Naber, M., Bouwknegt, D. G., Visschedijk, M., Lourens, L., Van der Meulen-de Jong, A. E., Bodelier, A., Duijvestein, M., Van Bodegraven, A. A., De Vries, A. C., Mujagic, Z., Pierik, M., Verleye, L., West, R., Romkens, T., Jharap, B., van der Marel, S., van der Voorn, M., Mensink, P., Mares, W., ... Dutch Initiative on Crohn and Colitis (ICC) Registry (2026). Effectiveness of JAK inhibitors in JAK naïve Ulcerative Colitis patients: Comparative analysis of tofacitinib, filgotinib and upadacitinib in the Dutch ICC Registry. Journal of Crohn's & Colitis, 20, Article jjaf2311262. https://doi.org/10.1093/ecco-jcc/jjaf231.1262

De Klaver, P. A. G., Van Woerkens, A. M. H., D'agnolo, H. M. A., Pierik, M. J., & Derijks, L. J. J. (2025). Retrospective Validation of Clinical Decision Support Tools for Predicting Effectiveness Outcomes in Inflammatory Bowel Disease Patients Treated with Vedolizumab. Pharmaceutics, 18(1), Article 15. https://doi.org/10.3390/pharmaceutics18010015

Demers, K., van den Bergh, N., Bongers, B. C., van Kuijk, S. M. J., Mujagic, Z., Jonkers, D. M. A. E., Pierik, M. J., & Stassen, L. P. S. (2025). Health-Related Physical Fitness in Patients With Inflammatory Bowel Disease vs Healthy Control Subjects. Inflammatory Bowel Diseases, 31(12), 3337-3355. Article izaf169. https://doi.org/10.1093/ibd/izaf169

Versteegh, M. M., Huygens, S. A., Bermejo, I., Grimm, S., Pierik, M., Romkens, T., van Schaik, F., & Wahab, P. (2025). Cost-Utility Analysis of Treatment Sequences for Moderate-to-Severe Crohn's Disease. Pharmacoeconomics, 43(12), 1405-1417. https://doi.org/10.1007/s40273-025-01531-x

Bergemalm, D., Amcoff, K., Pierik, M. J., Colombel, J.-F., Vermeire, S., Bodin, L., Carlson, M., & Halfvarson, J. (2025). Environmental and Inflammatory Factors Drive Perinuclear-Antineutrophil Cytoplasmic Antibodies (pANCA) in Ulcerative Colitis: A European Twin Study. United European Gastroenterology Journal, 13(10), 1964-1973. https://doi.org/10.1002/ueg2.70101

Demers, K., Hendrix, E. M. B., Ardabili, A. R., Bredero, Q. M., van Bodegraven, A. A., van der Horst, D., Jonkers, D. M. A. E., Kimman, M. L., Mujagic, Z., Romberg-Camps, M. J., Römkens, T. E. H., Scherpenzeel, M. P., Schroevers, M. J., Stassen, L. P. S., West, R. L., Dijkstra, G., & Pierik, M. J. (2025). Lifestyle and psychosocial factors in inflammatory bowel disease: Prevalence, impact, motivation, and support needs. PLOS ONE, 20(8 August), Article e0331092. https://doi.org/10.1371/journal.pone.0331092