PMID- 35017012 OWN - NLM STAT- MEDLINE DCOM- 20220223 LR - 20220223 IS - 1879-0720 (Electronic) IS - 0928-0987 (Linking) VI - 171 DP - 2022 Apr 1 TI - A new nanosuspension prepared with wet milling method for oral delivery of highly variable drug Cyclosporine A: development, optimization and in vivo evaluation. PG - 106123 LID - S0928-0987(22)00008-2 [pii] LID - 10.1016/j.ejps.2022.106123 [doi] AB - Cyclosporine A (CsA) is a cyclic polypeptide, that has been widely used for immunosuppression. This study aims to develop nanosuspension for oral administration of CsA using the wet milling (WM) method one of the top-down technologies. The WM method was optimized by studying the effects of critical process parameters for WM on the particle size (PS), particle size distribution (PDI), and zeta potential (ZP) of nanosuspensions using the Design of Experiment (DoE) approach. Nanosuspension was developed using hydroxypropyl methylcellulose (HPMC) and sodium dodecyl sulfate (SDS) and in vitro characterization studies were performed. In vitro dissolution and in vivo pharmacokinetic studies were conducted with biorelevant media (fasted and fed state simulated fluids) and fasted and fed states in rats, respectively. In vivo immunological studies were also performed. PS, PDI, and ZP values for nanosuspension were approximately 600 nm, 0.4, -25 mV, respectively. The solubility of CsA was increased by 4.5-folds by nanosuspensions. Dissolution studies showed that nanosuspension had higher dissolution than the commercial product in the FeSSIF medium. The pharmacokinetic study indicated that AUC(0-24) values of CsA nanosuspension were to be 2.09 and 5.51-fold higher than coarse powder in fasted and fed conditions, respectively. Immunological studies were carried out after oral administration of nanosuspension for 21 days, the ratio of CD4+/CD8+ was found to be more acceptable than the commercial product. These results demonstrated that nanosuspension is a promising approach for increasing the bioavailability and avoiding the food effect on absorption of CsA which one of the highly variable drugs. CI - Copyright (c) 2022. Published by Elsevier B.V. FAU - Pinar, Sila Gulbag AU - Pinar SG AD - Gazi University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Etiler, 06330, Yenimahalle, Ankara, Turkey; Suleyman Demirel University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 32260, Cunur, Isparta, Turkey. FAU - Canpinar, Hande AU - Canpinar H AD - Hacettepe University, Cancer Institute, Department of Basic Oncology, 06100, Sihhiye, Ankara, Turkey. FAU - Tan, Cagman AU - Tan C AD - Hacettepe University, Faculty of Medicine, Institute of Child Health, 06100, Sihhiye, Ankara, Turkey. FAU - Celebi, Nevin AU - Celebi N AD - Gazi University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Etiler, 06330, Yenimahalle, Ankara, Turkey; Baskent University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 06790, Etimesgut, Ankara, Turkey. Electronic address: fncelebi@baskent.edu.tr. LA - eng PT - Journal Article DEP - 20220110 PL - Netherlands TA - Eur J Pharm Sci JT - European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences JID - 9317982 RN - 0 (Suspensions) RN - 83HN0GTJ6D (Cyclosporine) SB - IM MH - Administration, Oral MH - Animals MH - Biological Availability MH - *Cyclosporine MH - *Nanoparticles/chemistry MH - Particle Size MH - Rats MH - Solubility MH - Suspensions OTO - NOTNLM OT - Cyclosporine a OT - Dissolution OT - Nanosuspension OT - Pharmacokinetic OT - T lymphocyte subsets OT - Top-down technology EDAT- 2022/01/13 06:00 MHDA- 2022/02/24 06:00 CRDT- 2022/01/12 05:52 PHST- 2021/07/06 00:00 [received] PHST- 2021/12/30 00:00 [revised] PHST- 2022/01/03 00:00 [accepted] PHST- 2022/01/13 06:00 [pubmed] PHST- 2022/02/24 06:00 [medline] PHST- 2022/01/12 05:52 [entrez] AID - S0928-0987(22)00008-2 [pii] AID - 10.1016/j.ejps.2022.106123 [doi] PST - ppublish SO - Eur J Pharm Sci. 2022 Apr 1;171:106123. doi: 10.1016/j.ejps.2022.106123. Epub 2022 Jan 10.