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Choi G, Piao H, Rejinold NS, Yu S, Kim KY, Jin GW, Choy JH. Hydrotalcite-Niclosamide Nanohybrid as Oral Formulation towards SARS-CoV-2 Viral Infections. Pharmaceuticals (Basel) 2021; 14:ph14050486. [PMID: 34069716 PMCID: PMC8160721 DOI: 10.3390/ph14050486] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/08/2021] [Accepted: 05/14/2021] [Indexed: 12/15/2022] Open
Abstract
COVID-19 has been affecting millions of individuals worldwide and, thus far, there is no accurate therapeutic strategy. This critical situation necessitates novel formulations for already existing, FDA approved, but poorly absorbable drug candidates, such as niclosamide (NIC), which is of great relevance. In this context, we have rationally designed NIC-loaded hydrotalcite composite nanohybrids, which were further coated with Tween 60 or hydroxypropyl methyl cellulose (HPMC), and characterized them in vitro. The optimized nanohybrids showed particle sizes <300 nm and were orally administrated to rats to determine whether they could retain an optimum plasma therapeutic concentration of NIC that would be effective for treating COVID-19. The pharmacokinetic (PK) results clearly indicated that hydrotalcite-based NIC formulations could be highly potential options for treating the ongoing pandemic and we are on our way to understanding the in vivo anti-viral efficacy sooner. It is worth mentioning that hydrotalcite–NIC nanohybrids maintained a therapeutic NIC level, even above the required IC50 value, after just a single administration in 8–12 h. In conclusion, we were very successfully able to develop a NIC oral formulation by immobilizing with hydrotalcite nanoparticles, which were further coated with Tween 60 or HPMC, in order to enhance their emulsification in the gastrointestinal tract.
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Affiliation(s)
- Goeun Choi
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (G.C.); (H.P.); (N.S.R.); (S.Y.)
- College of Science and Technology, Dankook University, Cheonan 31116, Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea
| | - Huiyan Piao
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (G.C.); (H.P.); (N.S.R.); (S.Y.)
| | - N. Sanoj Rejinold
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (G.C.); (H.P.); (N.S.R.); (S.Y.)
| | - Seungjin Yu
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (G.C.); (H.P.); (N.S.R.); (S.Y.)
- Department of Chemistry, College of Science and Technology, Dankook University, Cheonan 31116, Korea
| | - Ki-yeok Kim
- R&D Center, CnPharm Co., Ltd., Seoul 03759, Korea;
| | - Geun-woo Jin
- R&D Center, CnPharm Co., Ltd., Seoul 03759, Korea;
- Correspondence: (G.-w.J.); (J.-H.C.)
| | - Jin-Ho Choy
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (G.C.); (H.P.); (N.S.R.); (S.Y.)
- Department of Pre-medical Course, College of Medicine, Dankook University, Cheonan 31116, Korea
- Tokyo Tech World Research Hub Initiative (WRHI), Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
- Correspondence: (G.-w.J.); (J.-H.C.)
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