Safety and Tolerability of FITC-Adalimumab Administration During Confocal Laser Endomicroscopy of the Gut

The study product FITC-Adalimumab will be topically applied via a spray catheter to the intestinal mucosa of Crohn's disease patients during endomicroscopy of the gut. One mL of the diluted study product will be applied each time to overall four selected intestinal areas at a concentration of 20 μg/mL respectively (equivalent to 20 μg of FITC-Adalimumab per area). Total amount applied will be 80 μg FITC-Adalimumab per patient.