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Sun W, Wang B, Wang P, Liu B, Pan B. Microenvironment pH modified solid dispersion of Toltrazuril as a new strategy to improve the treatment of experimental Apicomplexan infection. Acta Trop 2023; 238:106797. [PMID: 36528088 DOI: 10.1016/j.actatropica.2022.106797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/27/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
The phylum Apicomplexa contains some of the most serious human and veterinary parasites, including Eimeria magna, Toxoplasma gondii, and many others. Toltrazuril (TOL) has activity against multiple stages of Apicomplexan parasites, but its clinical use is limited by low bioavailability. In present study, we prepared one new formulation named the microenvironment pH modified solid dispersion (pHM-SD), which was composed of three components including Ca(OH)2, TOL, and PVPk30 with the weight ratio of 1:8:8. In vivo evaluation for bioavailability and efficacy of the pHM-SD was conducted following oral administration and hypodermic injection. The performance of the pHM-SD was also contrast to corresponding results of raw material drug and commercial Baycox® to evaluate the advantages for clinical application. The results showed that the bioavailability of prototype TOL and its active metabolites toltrazuril sulfoxide (TOLSO), toltrazuril sulfone (TOLSO2) in rabbits were improved remarkably after oral administration of the pHM-SD. The safety of the pHM-SD via oral administration was adequately verified via the histopathological examination. We subsequently evaluated effects of the pHM-SD on Eimeria magna oocysts and Toxoplasma gondii tachyzoites. In vivo anti-coccidia efficacy further confirmed that the pHM-SD could be used as a strategy to minimize the oocyst exposure. In vitro cytotoxicity and anti-Toxoplasma tests showed that the pHM-SD had little damage to host cells within the concentration of 100 μg/ mL, and the anti-Toxoplasma efficacy was significantly improved compared with TOL. Combined with the above-mentioned experimental results, we conclude that the pHM-SD maybe a promising candidate for providing better clinical outcomes.
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Affiliation(s)
- Weiwei Sun
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Bohan Wang
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Penglong Wang
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Boxing Liu
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China
| | - Baoliang Pan
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Hai Dian District, Beijing 100193, China.
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Rao L, Bhardwaj BY, Chugh M, Sharma A, Shah R, Minocha N, Pandey P. Enhanced Efficacy of Carvedilol by Utilization of Solid Dispersion and Other Novel Strategies: A Review. Cardiovasc Hematol Disord Drug Targets 2023; 23:141-156. [PMID: 37953616 DOI: 10.2174/011871529x247622231101075854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 08/04/2023] [Accepted: 10/09/2023] [Indexed: 11/14/2023]
Abstract
Carvedilol is classified as a second class drug of Biopharmaceutical classification system (BCS), and it is an excellent beta blocker and vasodilating agent. It is used in a diverse range of disease states. Despite having tremendous advantages, the drug cannot be used effectively and productively due to aquaphobicity and poor bioavailability. To overcome this limitation, numerous novel approaches and tactics have been introduced over the past few years, such as Selfmicro emulsifying drug delivery systems (SMEDDS), nanoparticles, solid dispersions and liposomal drug delivery. The present review aims to accentuate the role of solid dispersion in improving the dissolution profile and aqua solubility of carvedilol and also to emphasize other novel formulations of carvedilol proposed to prevail the limitations of carvedilol. Solid dispersion and other novel approaches were found to play a significant role in overcoming the drawbacks of carvedilol, among which solid dispersion is the most feasible and effective approach being used worldwide. Reduced particle size, more wettability, and large surface area are obtained by the implementation of solid dispersion technique, hence improving carvedilol solubility and bioavailability.
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Affiliation(s)
- Lakshita Rao
- Department of Pharmaceutical Sciences, Gurugram University, Gurugram - 122018, Haryana, India
| | - Bigul Yogeshver Bhardwaj
- Institute of Pharmaceutical Sciences, Shoolini University, Solan - 173229, Himachal Pradesh, India
| | - Mahek Chugh
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak - 124001, Haryana, India
| | - Ashish Sharma
- Department of Pharmaceutical Sciences, Gurugram University, Gurugram - 122018, Haryana, India
| | - Rashmi Shah
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak - 124001, Haryana, India
| | - Neha Minocha
- Chitkara School of Pharmacy, Chitkara University, Baddi - 174103, Himachal Pradesh, India
| | - Parijat Pandey
- Department of Pharmaceutical Sciences, Gurugram University, Gurugram - 122018, Haryana, India
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Choi JE, Kim JS, Kim J, Choi MJ, Baek K, Kim JO, Choi HG, Jin SG. A novel acidic microenvironment microsphere for enhanced bioavailability of carvedilol: Comparison of solvent evaporated and surface-attached system. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Anane-Adjei AB, Jacobs E, Nash SC, Askin S, Soundararajan R, Kyobula M, Booth J, Campbell A. Amorphous Solid Dispersions: Utilization and Challenges in Preclinical Drug Development within AstraZeneca. Int J Pharm 2021; 614:121387. [PMID: 34933082 DOI: 10.1016/j.ijpharm.2021.121387] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/23/2021] [Accepted: 12/12/2021] [Indexed: 01/04/2023]
Abstract
The poor aqueous solubility of many active pharmaceutical ingredients (APIs) dominates much of the early drug development portfolio and poses a major challenge in pharmaceutical development. Polymer-based amorphous solid dispersions (ASDs) are becoming increasingly common and offer a promising formulation strategy to tackle the solubility and oral absorption issues of these APIs. This review discusses the design, manufacture, and utilisation of ASD formulations in preclinical drug development, with a key focus on the pre-formulation assessments and workflows employed at AstraZeneca.
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Affiliation(s)
- Akosua B Anane-Adjei
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Esther Jacobs
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Samuel C Nash
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Sean Askin
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Ramesh Soundararajan
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Mary Kyobula
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Jonathan Booth
- Pharmaceutical Technology & Development, AstraZeneca, Charter Way, Macclesfield, SK10 2NA, UK
| | - Andrew Campbell
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK.
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Halder S, Ahmed F, Shuma ML, Azad M, Kabir ER. Impact of drying on dissolution behavior of carvedilol-loaded sustained release solid dispersion: development and characterization. Heliyon 2020; 6:e05026. [PMID: 33005811 PMCID: PMC7511744 DOI: 10.1016/j.heliyon.2020.e05026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/11/2020] [Accepted: 09/18/2020] [Indexed: 12/11/2022] Open
Abstract
PURPOSE The present study aimed to develop carvedilol (CAR)-loaded (25% w/w) sustained release solid dispersion (SRSD), for enhanced dissolution and to explore the applicability of different industrially accessible drying techniques. METHODS SRSD-CAR containing different ratios of polymers were prepared and physicochemically characterized. Dissolution study was carried out in both sink and supersaturated conditions to identify the possible enhancement in dissolution behavior. RESULTS Based on the solubility study, Kolliphor® P188 and Eudragit® RSPO (50:25, % w/w) ratio exhibited the highest solubility among the samples and was chosen as the optimal composition of SRSD-CAR for further characterization. The crystallinity assessments of the optimized formulation indicated amorphization of CAR in the formulation, bring about improved solubility of CAR. The infrared spectroscopic study revealed minor transitions; demonstrating the absence of significant interactions between drug and carrier. Furthermore, the SRSD-CAR exhibited immediate formation of nano particles when dispersed in water. Dissolution study revealed significant improvement in dissolution behavior, with a release of CAR in a gradual manner compared to crystalline CAR. From the dissolution kinetics analysis, the Korsmeyer Peppas model fit the best and diffusion was predominant in release of CAR. The drug release pattern showed insignificant differences between the SRSD-CAR formulations prepared by rotary vacuum drying and freeze drying. CONCLUSION From these experimental findings, SRSD approach might be a favorable dosage option for CAR, offering improved biopharmaceutical properties.
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Affiliation(s)
- Shimul Halder
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Fairuza Ahmed
- Department of Pharmacy, BRAC University, Mohakhali, Dhaka, 1212, Bangladesh
| | - Madhabi Lata Shuma
- Department of Pharmacy, Stamford University Bangladesh, Siddeswari, Dhaka, 1217, Bangladesh
| | - M.A.K. Azad
- Department of Pharmacy, BRAC University, Mohakhali, Dhaka, 1212, Bangladesh
| | - Eva Rahman Kabir
- Department of Pharmacy, BRAC University, Mohakhali, Dhaka, 1212, Bangladesh
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Binary polymeric amorphous carvedilol solid dispersions: In vitro and in vivo characterization. Eur J Pharm Sci 2020; 150:105343. [DOI: 10.1016/j.ejps.2020.105343] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/21/2020] [Accepted: 04/14/2020] [Indexed: 12/20/2022]
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Halder S, Ogino M, Seto Y, Sato H, Onoue S. Improved biopharmaceutical properties of carvedilol employing α-tocopheryl polyethylene glycol 1000 succinate-based self-emulsifying drug delivery system. Drug Dev Ind Pharm 2018; 44:1838-1844. [PMID: 30059249 DOI: 10.1080/03639045.2018.1503294] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The main objective of this study was to develop a self-emulsifying drug delivery system (SEDDS) of carvedilol (CAR) with improved oral absorption and hepatoprotective properties. SEDDS-CAR was prepared based on d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) and physicochemically characterized. Pharmacokinetic behaviors after the oral administration of CAR samples in rats were evaluated to clarify the possible enhancement of the oral absorption of CAR. The hepatoprotective effects of orally dosed CAR samples were assessed in a rat model of acute hepatic injury induced by carbon tetrachloride (CCl4). SEDDS-CAR showed the immediate formation of fine micelles with a mean droplet size of 84 nm when introduced in aqueous media. SEDDS-CAR improved the dissolution behavior of CAR in distilled water as evidenced by at least five-fold higher solubility than the equilibrium solubility of CAR. After the single oral administration of SEDDS-CAR (10 mg-CAR/kg) in rats, enhanced CAR exposure was observed with an increase of AUC0-∞ showing a 2.5-fold increase compared with crystalline CAR. In CCl4-treated rats, orally dosed SEDDS-CAR (10 mg-CAR/kg, p.o.) led to 91.8 and 91.2% reductions of ALT and AST, respectively; however, crystalline CAR was found to be less effective. From these findings, SEDDS-CAR might be an efficacious oral dosage option for enhancing the hepatoprotective potential of CAR.
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Affiliation(s)
- Shimul Halder
- a Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada , Suruga-ku , Shizuoka , Japan
| | - Mizuki Ogino
- a Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada , Suruga-ku , Shizuoka , Japan
| | - Yoshiki Seto
- a Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada , Suruga-ku , Shizuoka , Japan
| | - Hideyuki Sato
- a Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada , Suruga-ku , Shizuoka , Japan
| | - Satomi Onoue
- a Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada , Suruga-ku , Shizuoka , Japan
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