What the trial was testing
The U-EXCEL enrolled 526 patients with crohn's disease. The study was sponsored by AbbVie and tracked outcomes across the full group of patients who matched the trial's eligibility profile.
It was a large trial designed to confirm whether the treatment works well enough for wider use. Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.
What the results showed
About 50% reached clinical remission at 12 weeks — roughly twice the placebo rate.
New England Journal of Medicine · 2023 · NCT03345849
These findings — that of patients in clinical remission at 12 weeks on upadacitinib vs. placebo — were published in the New England Journal of Medicine and represent the headline result of the study.
Researchers tracked outcomes across 526 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.
What this means for patients
For patients with crohn's disease, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.
What you can do now
Upadacitinib (Rinvoq) is FDA-approved for moderately to severely active Crohn's disease in adults who haven't responded to other treatments and available now. It is taken as a once-daily pill — no injections or infusions. Side effects can include increased infection risk and lab changes; regular monitoring is required. Ask your gastroenterologist whether it fits.
Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.
Open crohn's disease trials
Impact of Prebiotics in Ulcerative Colitis
The cause of inflammatory bowel disease (IBD) is currently unknown, although partly attributed to interactions among genetic risk polymorphisms, environmental factors, gut microbiome, and host immunity. Diet, particularly those with plant-based products, have been shown in prior research to improve gut microbial composition, which has been linked to different IBD-related outcomes. This study is interested in evaluating the impact of prebiotics on gut microbiome composition and gut health in patients with IBD. Dietary composition will be assessed at baseline and over the course of 16 weeks. Participants will be randomized to either consume an 8-week course of prebiotic supplementation beginning at week 0 or week 8. Stool samples will be collected at weeks 0 and 8. The stool will be analyzed for cross-sectional and longitudinal fecal microbial changes associated with different prebiotic and diet consumption patterns in the context of heterogeneous disease characteristics.
Stem Cell Transplantation in Crohn's Disease
Unfortunately, some patients with Crohn's disease (CD) fail to respond to the best clinical treatments and some only experience temporary benefit. For severe Crohn's disease, there is an experimental treatment called "high dose immunoablation" followed by autologous hematopoietic stem cell transplantation (HSCT). This study removes over active lymphocytes (immunoablation) and replaces them using blood stem cells that have been taken from the patient's own body. The aim of the study is to reset or reprogram the patient's immune system to its state prior to diagnosis.