PMID- 35339635 OWN - NLM STAT- MEDLINE DCOM- 20220428 LR - 20240407 IS - 1873-3476 (Electronic) IS - 0378-5173 (Linking) VI - 619 DP - 2022 May 10 TI - The effect of esomeprazole on the upper GI tract release and systemic absorption of mesalazine from colon targeted formulations. PG - 121701 LID - S0378-5173(22)00256-3 [pii] LID - 10.1016/j.ijpharm.2022.121701 [doi] AB - The aim of the present study was to investigate the effect of coadministration of the proton pump inhibitor (PPI) esomeprazole on the upper GI tract behavior and systemic exposure of mesalazine from two mechanistically different colon targeted delivery systems: Claversal (pH-dependent release) and Pentasa (prolonged release). To this end, gastric, jejunal and systemic concentrations of mesalazine and its metabolite N-acetyl mesalazine were monitored in 5 healthy volunteers following oral intake of Pentasa or Claversal with or without PPI pre-treatment (cross-over study). Our exploratory study demonstrated that pre-treatment with a PPI may affect the release and absorption of mesalazine from formulations with different modified release mechanisms. Upon intake of Claversal, the onset of mesalazine absorption was accelerated substantially by PPI pre-treatment. While the PPI-induced increase in pH initiated the disintegration process already in the upper GI tract, the release of mesalazine started beyond the proximal jejunum. Upon intake of Pentasa, PPI pre-treatment seemed to increase the systemic exposure, even though the underlying mechanism could not be revealed yet. The faster release of mesalazine in the GI tract and/or the increased systemic absorption following PPI pre-treatment may reduce the ability of mesalazine to reach the colon. Future research assessing mesalazine disposition in the lower GI tract is warranted. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Van Camp, Arno AU - Van Camp A AD - Drug Delivery and Disposition, KU Leuven, Gasthuisberg O&N II, Herestraat 49 - box 921, 3000 Leuven, Belgium. Electronic address: arno.vancamp@kuleuven.be. FAU - Vanuytsel, Tim AU - Vanuytsel T AD - Translational Research Center for Gastrointestinal Disorders, TARGID, KU Leuven, Herestraat 49, 3000 Leuven, Belgium. Electronic address: tim.vanuytsel@kuleuven.be. FAU - Brouwers, Joachim AU - Brouwers J AD - Drug Delivery and Disposition, KU Leuven, Gasthuisberg O&N II, Herestraat 49 - box 921, 3000 Leuven, Belgium. Electronic address: joachim.brouwers@kuleuven.be. FAU - Augustijns, Patrick AU - Augustijns P AD - Drug Delivery and Disposition, KU Leuven, Gasthuisberg O&N II, Herestraat 49 - box 921, 3000 Leuven, Belgium. Electronic address: patrick.augustijns@kuleuven.be. LA - eng PT - Journal Article DEP - 20220323 PL - Netherlands TA - Int J Pharm JT - International journal of pharmaceutics JID - 7804127 RN - 4Q81I59GXC (Mesalamine) RN - N3PA6559FT (Esomeprazole) SB - IM EIN - Int J Pharm. 2024 Apr 25;655:124087. PMID: 38584003 MH - Absorption, Physiological MH - Colon MH - Cross-Over Studies MH - Esomeprazole/pharmacology MH - Humans MH - *Mesalamine MH - *Upper Gastrointestinal Tract OTO - NOTNLM OT - Clinical trial OT - Colon targeted drug delivery systems OT - Drug absorption OT - Gastrointestinal release OT - Mesalazine OT - PPI effect EDAT- 2022/03/28 06:00 MHDA- 2022/04/29 06:00 CRDT- 2022/03/27 20:20 PHST- 2021/12/29 00:00 [received] PHST- 2022/03/19 00:00 [revised] PHST- 2022/03/21 00:00 [accepted] PHST- 2022/03/28 06:00 [pubmed] PHST- 2022/04/29 06:00 [medline] PHST- 2022/03/27 20:20 [entrez] AID - S0378-5173(22)00256-3 [pii] AID - 10.1016/j.ijpharm.2022.121701 [doi] PST - ppublish SO - Int J Pharm. 2022 May 10;619:121701. doi: 10.1016/j.ijpharm.2022.121701. Epub 2022 Mar 23.