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Liu X, Müllertz A, Bar-Shalom D, Berthelsen R. Development and in vitro evaluation of an infant friendly self-nanoemulsifying drug delivery system (SNEDDS) loaded with an amphotericin B-monoacyl phosphatidylcholine complex for oral delivery. Int J Pharm 2024; 660:124286. [PMID: 38815640 DOI: 10.1016/j.ijpharm.2024.124286] [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: 01/24/2024] [Revised: 04/30/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
Until relatively recently, the pediatric population has largely been ignored during the development of new drug products, which has led to a high level of "off-label" use of drugs in this particular population. In this study, an infant friendly self-nanoemulsifying drug delivery system (SNEDDS) was developed for oral delivery of a commonly used "off-label" drug - amphotericin B (AmB). AmB was complexed with monoacyl-phosphatidylcholine (MAPC) by lyophilization, transforming crystalline AmB into its amorphous state in the AmB-MAPC complex (APC). The APC-loaded SNEDDS (APC-SNEDDS) showed excellent self-emulsifying properties; after dispersion of the APC-SNEDDS in purified water, nanoscale emulsion droplets were formed within 1 min with a z-average size of 179 ± 1 nm. In vitro pediatric gastrointestinal (GI) digestion and dissolution results showed that the APC-SNEDDS significantly increased the amount of AmB solubilized in aqueous phase and that the precipitated AmB from the APC-SNEDDS re-dissolved faster, compared with crystalline AmB in SNEDDS (AmB-SNEDDS), the complex without the SNEDDS (APC), the physical mixture of AmB and MAPC (AmB/MAPC PM), and crystalline AmB alone (AmB). Overall, the present in vitro results suggest that integrating the APC into an infant friendly SNEDDS is a promising approach for oral delivery of AmB to young pediatric patients.
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Affiliation(s)
- Xiaona Liu
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark; Bioneer:FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Daniel Bar-Shalom
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Ragna Berthelsen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark.
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2
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Kim YM, Jang GH, Seok CH, Kim BH, Bae JW, Kim BH, Yoon MS. A self-emulsifying omega-3 fatty acids delivery system for enhanced gastro-intestinal absorption in rats. Food Sci Biotechnol 2022; 31:1631-1638. [PMID: 36312998 PMCID: PMC9596634 DOI: 10.1007/s10068-022-01151-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 07/25/2022] [Accepted: 08/01/2022] [Indexed: 11/24/2022] Open
Abstract
Omega-3 fatty acids have many health benefits as they help to prevent and treat coronary artery disease, hypertension, diabetes mellitus, arthritis, and autoimmune disorders. Omega-3 fatty acids miscible in lecithin were found to spontaneously form microemulsions in water. The particle sizes of emulsions ranged from 300 to 800 nm and their morphologies were observed by optical microscopy. In vitro testing showed that the amounts of omega-3 fatty acids released by self-emulsifying delivery (SED) formulations containing lecithin, were higher than that released by a commercial formulation without lecithin. The Cmax values of docosahexaenoic acid (DHA) or eicosapentaenoic acid (EPA) were approximately 1.38-1.40-fold for the optimized SED formulation than for the control group (P < 0.01). Similarly, the mean AUC0 - 48 values of DHA or EPA in the SED group were 1.27-1.29-fold higher than in the control group (P < 0.05). Phospholipids and lecithin were found to have considerable potentials as bioavailability enhancing excipients for SED systems.
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Affiliation(s)
- Yu-Mi Kim
- Binotec Co., Ltd, 155 Deulan-ro, Suseong-gu, 42151 Daegu, Korea
| | - Gi-Hyun Jang
- Binotec Co., Ltd, 155 Deulan-ro, Suseong-gu, 42151 Daegu, Korea
| | - Chang-Hwan Seok
- Binotec Co., Ltd, 155 Deulan-ro, Suseong-gu, 42151 Daegu, Korea
| | - Bo Hyeon Kim
- Department of Pharmaceutical Engineering, Hoseo University, 31499 Asan, Chungnam, Korea
| | - Jung-Woo Bae
- College of Pharmacy, Keimyung University, 42601 Daegu, Korea
| | - Bae-Hwan Kim
- Department of Public Health, Keimyung University, 42601 Daegu, Korea
| | - Myeong Sik Yoon
- Department of Pharmaceutical Engineering, Hoseo University, 31499 Asan, Chungnam, Korea
- The Research Institute for Basic Sciences, Hoseo University, Asan, Chungnam, Korea
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Khan MA, Ullah K, Rahman NU, Mahmood A, Müllertz A, Mannan A, Murtaza G, Khan SA. Formulation, characterization and in-vitro evaluation of self-nanoemulsifying drug delivery system containing rhamnolipid biosurfactant. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mao Y, Chen Y, Liu C, He X, Zheng Y, Chen X, Wang Y, Chen W, Wu Y, Shen Y, Yang H, Ma S. Cefquinome Sulfate Oily Nanosuspension Designed for Improving its Bioavailability in the Treatment of Veterinary Infections. Int J Nanomedicine 2022; 17:2535-2553. [PMID: 35677677 PMCID: PMC9169852 DOI: 10.2147/ijn.s348822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 05/10/2022] [Indexed: 11/30/2022] Open
Abstract
Introduction Cefquinome sulfate (CS) is the first fourth-generation antibiotic for animals, which has a wide antibacterial spectrum, strong antibacterial activity and low drug resistance. However, it is accompanied by problems of poor therapeutic efficacy. In this context, the use of nanosuspensions have been found to be an attractive strategy. The main objective of this work is to develop a new oily nanosuspension to improve bioavailability and stability of CS formulations. Methods After screening the formulations, cefquinome sulfate oily nanosuspension (CS-NSP) was prepared by mortar grinding, using propylene glycol dicaprolate/dicaprate (Labrafac™ PG) as oil medium and caprylocaproyl polyoxyl-8 glycerides (Labrasol®) as stabilizer. The properties of CS-NSP were investigated by testing its physicochemical characteristics, stability, in vitro release, hemolysis, and muscle irritation. The in vivo pharmacokinetics of CS-NSP was studied using rats. Results Results show that CS-NSP presents suitable stability, physicochemical properties and safety. Moreover, a rapid release and high bioavailability of CS-NSP have also been verified in the study. Pharmacokinetic experiments in vivo showed that the bioavailability of CS-NSP was about 1.6 times that of commercial cefquinome sulfate injection (CS-INJ, Chuangdao®) (p<0.01). These advantages of CS-NSP were carried out by small particle size and low viscosity, being associated with the use of Labrafac PG and stabilizer Labrasol. Conclusion The results proved that the new preparation is safe and effective and is expected to become a promising veterinary nanodelivery system.
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Affiliation(s)
- Yujuan Mao
- Jiangsu Animal Husbandry and Veterinary College, Taizhou, Jiangsu, 225300, People’s Republic of China
| | - Yumeng Chen
- State Key Laboratory of Natural Medicines, Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Chang Liu
- State Key Laboratory of Natural Medicines, Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Xingyue He
- State Key Laboratory of Natural Medicines, Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Yi Zheng
- Jiangsu Animal Husbandry and Veterinary College, Taizhou, Jiangsu, 225300, People’s Republic of China
| | - Xiaolan Chen
- Jiangsu Animal Husbandry and Veterinary College, Taizhou, Jiangsu, 225300, People’s Republic of China
| | - Ying Wang
- Jiangsu Animal Husbandry and Veterinary College, Taizhou, Jiangsu, 225300, People’s Republic of China
| | - Wei Chen
- Jiangsu Animal Husbandry and Veterinary College, Taizhou, Jiangsu, 225300, People’s Republic of China
| | - Yanling Wu
- Jiangsu Animal Husbandry and Veterinary College, Taizhou, Jiangsu, 225300, People’s Republic of China
| | - Yan Shen
- State Key Laboratory of Natural Medicines, Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Haifeng Yang
- Jiangsu Animal Husbandry and Veterinary College, Taizhou, Jiangsu, 225300, People’s Republic of China
- Correspondence: Haifeng Yang, Email
| | - Songbo Ma
- Department of Oral and Maxillofacial Surgery, Taizhou People’s Hospital, Taizhou, Jiangsu, 225300, People’s Republic of China
- Songbo Ma, Email
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Poudwal S, Shende P. Multi-strategic approaches for enhancing active transportation using self-emulsifying drug delivery system. J Drug Target 2022; 30:726-736. [PMID: 35451898 DOI: 10.1080/1061186x.2022.2069783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Oral delivery is the most desired route of drug administration and it can be more beneficial for patients suffering from chronic diseases wherein frequent parenteral administration of proteins such as insulin and calcitonin is required. The BCS class II drugs show low aqueous solubility and high permeability whereas BCS class IV drugs suffer from low aqueous solubility and low permeability. Additionally, biologic drugs are highly sensitive to presence of bioenzymes and bile salts when administered orally. Self-emulsifying drug delivery system (SEDDS) is a thermodynamically stable lipid formulation that enhances oral absorption of active ingredients via the opening of tight junctions, increasing the membrane fluidity, and thus overcomes the physiological barriers like viscous mucus layer, strong acid conditions and enzymatic degradation. An understanding of different theories that govern SEDDS formation and drug release can help in formulating a highly stable and effective drug delivery system. Poorly permeable drugs such as chlorpromazine require modification using methods like hydrophobic ion pairing, complexation with phospholipids, etc. to enable high entrapment efficiency which is discussed in the article. Additionally, the article gives an overview of the influence of polymers, length of fatty acids chain and zeta potential in enhancing permeation across the intestinal membrane.
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Affiliation(s)
- Swapna Poudwal
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, India
| | - Pravin Shende
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, India
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Oligonucleotide Delivery across the Caco-2 Monolayer: The Design and Evaluation of Self-Emulsifying Drug Delivery Systems (SEDDS). Pharmaceutics 2021; 13:pharmaceutics13040459. [PMID: 33800701 PMCID: PMC8066367 DOI: 10.3390/pharmaceutics13040459] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 01/21/2023] Open
Abstract
Oligonucleotides (OND) represent a promising therapeutic approach. However, their instability and low intestinal permeability hamper oral bioavailability. Well-established for oral delivery, self-emulsifying drug delivery systems (SEDDS) can overcome the weakness of other delivery systems such as long-term instability of nanoparticles or complicated formulation processes. Therefore, the present study aims to prepare SEDDS for delivery of a nonspecific fluorescently labeled OND across the intestinal Caco-2 monolayer. The hydrophobic ion pairing of an OND and a cationic lipid served as an effective hydrophobization method using either dimethyldioctadecylammonium bromide (DDAB) or 1,2-dioleoyl-3-trimethylammonium propane (DOTAP). This strategy allowed a successful loading of OND-cationic lipid complexes into both negatively charged and neutral SEDDS. Subjecting both complex-loaded SEDDS to a nuclease, the negatively charged SEDDS protected about 16% of the complexed OND in contrast to 58% protected by its neutral counterpart. Furthermore, both SEDDS containing permeation-enhancing excipients facilitated delivery of OND across the intestinal Caco-2 cell monolayer. The negatively charged SEDDS showed a more stable permeability profile over 120 min, with a permeability of about 2 × 10-7 cm/s, unlike neutral SEDDS, which displayed an increasing permeability reaching up to 7 × 10-7 cm/s. In conclusion, these novel SEDDS-based formulations provide a promising tool for OND protection and delivery across the Caco-2 cell monolayer.
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Saifullah S, Kanwal T, Ullah S, Kawish M, Habib SM, Ali I, Munir A, Imran M, Shah MR. Design and development of lipid modified chitosan containing muco-adhesive self-emulsifying drug delivery systems for cefixime oral delivery. Chem Phys Lipids 2021; 235:105052. [PMID: 33482099 DOI: 10.1016/j.chemphyslip.2021.105052] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/07/2021] [Accepted: 01/12/2021] [Indexed: 11/15/2022]
Abstract
Current study was aimed to design and develop muco-adhesive self-nano emulsifying drug delivery system (SNEDDs) for improved pharmacokinetics of Cefixime (CFX) in rabbits. The components of SNEDDs formulation i.e., cinnamon oil, Tween® 80, and PEG 200 as oil, surfactant, and co-surfactant respectively were selected based on their high solubilizing capability of the drug. SNEDDs formulation was optimized using Design of experiments (D-optimal design) in terms of droplet size, poly dispersity index and zeta potential. The optimized SNEDDs formulation was studied for various parameters like droplet size, morphology, zeta potential, emulsification, optical clarity, thermodynamic stability, GIT stability, and robustness to dilution. CFX was loaded to optimized formulation to form CFX-SNEDDs. Furthermore, acyl-chitosan, a muco-adhesive agent, was added to CFX-SNEDDS to prepare CHT-CFX-SNEDDS. In vitro drug release showed the controlled release behavior reached a maximum value of 70 % at pH 6.8 within 24 h. The droplet size, atomic force microscopy, and optical clarity analysis revealed the formation of nanosized emulsion (156 ± 25 nm) with spherical morphology. Also in vivo pharmacokinetic studies on rabbits showed an increased drug plasma concentration for CHT-CFX-SNEDDs (15 ± 3 μg/mL) and CFX-SNEDDs (9 ± 2 μg/mL) in comparison with control CFX (4 ± 1 μg/mL). The results indicated that the developed CHT-CFX-SNEDDs with an increased degree of solubilization, permeation, and nanosized range emulsion enhance the oral performance of CFX.
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Affiliation(s)
- Salim Saifullah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
| | - Tasmina Kanwal
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
| | - Shafi Ullah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
| | - Muhammad Kawish
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
| | - Shahida Muhammad Habib
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
| | - Imdad Ali
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
| | - Abubakar Munir
- Faculty of Pharmacy, Superior University, 6km Raiwind Road, Lahore, Pakistan.
| | - Muhammad Imran
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
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8
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Design of Non-Haemolytic Nanoemulsions for Intravenous Administration of Hydrophobic APIs. Pharmaceutics 2020; 12:pharmaceutics12121141. [PMID: 33255606 PMCID: PMC7760703 DOI: 10.3390/pharmaceutics12121141] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/06/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023] Open
Abstract
Among advanced formulation strategies, nanoemulsions are considered useful drug-delivery systems allowing to improve the solubility and the bioavailability of lipophilic drugs. To select safe excipients for nanoemulsion formulation and to discard any haemolytic potential, an in vitro miniaturized test was performed on human whole blood. From haemolysis results obtained on eighteen of the most commonly used excipients, a medium chain triglyceride, a surfactant, and a solubilizer were selected for formulation assays. Based on a design of experiments and a ternary diagram, the feasibility of nanoemulsions was determined. The composition was defined to produce monodisperse nanodroplets with a diameter of either 50 or 120 nm, and their physicochemical properties were optimized to be suitable for intravenous administration. These nanoemulsions, stable over 21 days in storage conditions, were shown to be able to encapsulate with high encapsulation efficiency and high drug loading, up to 16% (w/w), two water practically insoluble drug models: ibuprofen and fenofibrate. Both drugs may be released according to a modulable profile in sink conditions. Such nanoemulsions appear as a very promising and attractive strategy for the efficient early preclinical development of hydrophobic drugs.
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9
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Self-dispersing formulations for the delivery of poorly soluble drugs – Miscibility of phosphatidylcholines with oils and fats. Eur J Pharm Biopharm 2020; 151:209-219. [DOI: 10.1016/j.ejpb.2020.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 03/24/2020] [Accepted: 04/19/2020] [Indexed: 11/22/2022]
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10
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Liu J, Hirschberg C, Fanø M, Mu H, Müllertz A. Evaluation of self-emulsifying drug delivery systems for oral insulin delivery using an in vitro model simulating the intestinal proteolysis. Eur J Pharm Sci 2020; 147:105272. [PMID: 32084584 DOI: 10.1016/j.ejps.2020.105272] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 01/09/2020] [Accepted: 02/17/2020] [Indexed: 10/25/2022]
Abstract
The gentle preparation and the functionalization potential of self-emulsifying drug delivery systems (SEDDS) make them an interesting formulation strategy for oral administration of peptide and protein (p/p) drugs. A series of Kolliphor® RH40 (RH40) and Labrasol® (LAB)-based SEDDS containing either long-chain (LC) or medium-chain (MC) glycerides were formulated and characterized with regard to their rheological behavior, as well as the size distribution and zeta potential of the generated emulsions. Insulin, in order to be incorporated in SEDDS, was complexed with soybean phosphatidylcholine. The ability of different SEDDS to protect the incorporated insulin against enzymatic hydrolysis was evaluated by an in vitro model simulating the intestinal proteolysis. SEDDS were incubated in simulated intestinal fluids in the presence of α-Chymotrypsin (α-CT), and HPLC was used to quantify the remaining insulin. Principal component analysis (PCA) was applied to identify the relations between different excipients and properties of SEDDS that describe the SEDDS protective effect on insulin during in vitro proteolysis. The RH40-SEDDS behaved Newtonian in the presence of ethanol (EtOH) and non-Newtonian in the absence of EtOH, which generated emulsion with droplets between 30 to 300 nm. The LAB-SEDDS always behaved Newtonian and generated polydisperse emulsions with broad size distribution (190-4000 nm). During the in vitro proteolysis, insulin can be effectively protected against α-CT (> 60% remaining insulin after 60 min in vitro proteolysis). According to PCA analysis, insulin was better protected in MC-SEDDS compared to LC-SEDDS, and better in LAB-SEDDS compared to RH40-SEDDS. Monoacyl phosphatidylcholine and Capmul® MCM C8 were recognized as excipients favored for SEDDS protection on insulin. However, SEDDS viscosity and the addition of EtOH in SEDDS played insignificant roles on the remaining insulin after in vitro proteolysis. In summary, an in vitro proteolysis model with increased physiological relevance was applied to enable the optimal design of SEDDS for oral p/p drug delivery.
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Affiliation(s)
- Jingying Liu
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Cosima Hirschberg
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Mathias Fanø
- Bioneer: FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Huiling Mu
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100, Copenhagen, Denmark; Bioneer: FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.
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11
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Tran T, Bønløkke P, Rodríguez-Rodríguez C, Nosrati Z, Esquinas PL, Borkar N, Plum J, Strindberg S, Karagiozov S, Rades T, Müllertz A, Saatchi K, Häfeli UO. Using in vitro lipolysis and SPECT/CT in vivo imaging to understand oral absorption of fenofibrate from lipid-based drug delivery systems. J Control Release 2020; 317:375-384. [DOI: 10.1016/j.jconrel.2019.11.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/17/2019] [Accepted: 11/18/2019] [Indexed: 10/25/2022]
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12
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Niederquell A, Dujovny G, Probst SE, Kuentz M. A Relative Permittivity Approach for Fast Drug Solubility Screening of Solvents and Excipients in Lipid-Based Delivery. J Pharm Sci 2019; 108:3457-3460. [PMID: 31255684 DOI: 10.1016/j.xphs.2019.06.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/07/2019] [Accepted: 06/07/2019] [Indexed: 11/18/2022]
Abstract
Drug solubility screening in solvents and lipids is central for the development of lipid-based formulations (LBFs), and any guidance to reduce the experimental workload would be highly desirable. Solubility parameters are interesting as they can be predicted in silico for a drug but they are hardly predictable for complex lipids. This paper uses a new approach to convert an in silico drug solubility parameter to an estimated relative permittivity, εr. Diverse solvents and lipid-based excipients were then experimentally tested for εr and solubility using fenofibrate as model. The typical excipients and solvents used in LBFs showed an εr range of about 2-24, and good solubility of fenofibrate was indeed evidenced in vicinity of its estimated relative permittivity 13.2 ± 2.7. Mixtures of promising excipients were studied subsequently, and the obtained εr was predictable based on the known values of the individual components. The novel permittivity approach has demonstrated its usefulness, it has much potential in early development for ranking of suitable excipients, and it gives an initial orientation to design formulations. Future research may clarify further opportunities and limits of the novel approach for LBFs.
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Affiliation(s)
- Andreas Niederquell
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, 4132 Muttenz, Switzerland
| | - Gabriela Dujovny
- Qualicaps(®) Europe, S.A.U., Avenida Monte Valdelatas 4, 28108 Alcobendas, Spain
| | | | - Martin Kuentz
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, 4132 Muttenz, Switzerland.
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13
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Baloch J, Sohail MF, Sarwar HS, Kiani MH, Khan GM, Jahan S, Rafay M, Chaudhry MT, Yasinzai M, Shahnaz G. Self-Nanoemulsifying Drug Delivery System (SNEDDS) for Improved Oral Bioavailability of Chlorpromazine: In Vitro and In Vivo Evaluation. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:E210. [PMID: 31137751 PMCID: PMC6572212 DOI: 10.3390/medicina55050210] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/04/2019] [Accepted: 05/16/2019] [Indexed: 12/12/2022]
Abstract
Background and Objectives: Lipid-based self-nanoemulsifying drug delivery systems (SNEDDS) have resurged the eminence of nanoemulsions by modest adjustments and offer many valuable opportunities in drug delivery. Chlorpromazine, an antipsychotic agent with poor aqueous solubility-with extensive first-pass metabolism-can be a suitable candidate for the development of SNEDDS. The current study was designed to develop triglyceride-based SNEDDS of chlorpromazine to achieve improved solubility, stability, and oral bioavailability. Materials and Methods: Fifteen SNEDDS formulations of each short, medium, and long chain, triglycerides were synthesized and characterized to achieve optimized formulation. The optimized formulation was characterized for several in vitro and in vivo parameters. Results: Particle size, zeta potential, and drug loading of the optimized SNEDDS (LCT14) were found to be 178 ± 16, -21.4, and 85.5%, respectively. Long chain triglyceride (LCT14) showed a 1.5-fold increased elimination half-life (p < 0.01), up to 6-fold increased oral bioavailability, and 1.7-fold decreased plasma clearance rate (p < 0.01) compared to a drug suspension. Conclusion: The findings suggest that SNEDDS based on long-chain triglycerides (LCT14) formulations seem to be a promising alternative for improving the oral bioavailability of chlorpromazine.
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Affiliation(s)
- Jeand Baloch
- Sulaiman Bin Abdullah Aba Al-Khail - Centre for Interdisciplinary Research in Basic Science (SA-CIRBS), International Islamic University, Islamabad 44000, Pakistan.
| | - Muhammad Farhan Sohail
- Riphah Institute of Pharmaceutical Sciences (RIPS), Riphah International University, Lahore Campus, Lahore 54770, Pakistan.
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Hafiz Shaib Sarwar
- Riphah Institute of Pharmaceutical Sciences (RIPS), Riphah International University, Lahore Campus, Lahore 54770, Pakistan.
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Maria Hassan Kiani
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Gul Majid Khan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Sarwat Jahan
- Department of Animal Sciences, Quaid-i- Azam University, Islamabad 45320, Pakistan.
| | - Muhammad Rafay
- Department of Forester, Range and Wild life management, College f Agriculture and Environmental Sciences, The Islamia University, Bahawalpur 63100, Pakistan.
| | - Muhammad Tausif Chaudhry
- Environmental Analytical Lab, NPSL, Pakistan Council of Scientific and Industrial Research (PCSIR), Islamabad 45710, Pakistan.
| | - Masoom Yasinzai
- Sulaiman Bin Abdullah Aba Al-Khail - Centre for Interdisciplinary Research in Basic Science (SA-CIRBS), International Islamic University, Islamabad 44000, Pakistan.
| | - Gul Shahnaz
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
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Liu J, Werner U, Funke M, Besenius M, Saaby L, Fanø M, Mu H, Müllertz A. SEDDS for intestinal absorption of insulin: Application of Caco-2 and Caco-2/HT29 co-culture monolayers and intra-jejunal instillation in rats. Int J Pharm 2019; 560:377-384. [PMID: 30790612 DOI: 10.1016/j.ijpharm.2019.02.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/28/2019] [Accepted: 02/12/2019] [Indexed: 01/02/2023]
Abstract
To face the challenges of oral delivery of peptide and protein (P/P) drugs, self-emulsifying drug delivery systems (SEDDSs) containing monoacyl phosphatidylcholine (MAPC), Labrasol (LAB) and medium-chain (MC) monoglycerides as permeation enhancers (PEs) were evaluated for their effect on intestinal absorption of insulin. In this study, insulin was complexed with phosphatidylcholine (SPC) to form an insulin-SPC complex (ins-SPC) with increased lipophilicity. The following three SEDDSs: MCT(MAPC) (MC triglycerides and MAPC included), MCT(RH40) (MC triglycerides and Kolliphor® RH40 included) and LCT(MAPC) (long-chain triglycerides and MAPC included) were loading with ins-SPC (4% or 8% w/w of SPC). Three SEDDSs generated emulsions with droplet sizes between 50 and 470 nm and with zeta potentials between -5 to -25 mV in a simulated intestinal medium. Mucus-secreting Caco-2/HT29-MTX-E12 co-culture and Caco-2 monolayers were used as in vitro cell transport models to investigate insulin permeability. In comparison to insulin HBSS solution, MCT(MAPC) significantly increased the insulin permeability across co-culture and Caco-2 monolayers (2.0-2.5 × 10-7 cm/s). In an intra-jejunal (i.j.) instillation model in rats, MCT(RH40) significantly decreased the rat blood glucose after 0.5 h by 17.0 ± 2.5% and for MCT(MAPC), it was 23.6 ± 10.6%. Furthermore, a lipase inhibitor orlistat was incorporated into MCT(MAPC) to evaluate the effect of lipid digestion on insulin absorption. Results indicated that the incorporation of orlistat did not significantly alter the in vivo insulin absorption. Overall, the SEDDS MCT(MAPC) composed of natural PEs (MAPC and MC glycerides) and synthetic PE (LAB) significantly increased the intestinal absorption of insulin upon i.j. instillation. Although it is not possible to conclude if a single PE is dominating the intestinal absorption of insulin, MCT(MAPC) seems to have the potential for oral insulin delivery.
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Affiliation(s)
- Jingying Liu
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Ulrich Werner
- Diabetes Division in Research and Development, Sanofi-Aventis Deutschland GmbH, K703 65926 Frankfurt, Germany
| | - Mario Funke
- Diabetes Division in Research and Development, Sanofi-Aventis Deutschland GmbH, K703 65926 Frankfurt, Germany
| | - Melissa Besenius
- Diabetes Division in Research and Development, Sanofi-Aventis Deutschland GmbH, K703 65926 Frankfurt, Germany
| | - Lasse Saaby
- Bioneer: FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Mathias Fanø
- Bioneer: FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Huiling Mu
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark; Bioneer: FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark.
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In Vitro Evaluation of Antimicrobial Activity and Cytotoxicity of Different Nanobiotics Targeting Multidrug Resistant and Biofilm Forming Staphylococci. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7658238. [PMID: 30622962 PMCID: PMC6304202 DOI: 10.1155/2018/7658238] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 10/24/2018] [Accepted: 11/05/2018] [Indexed: 12/15/2022]
Abstract
Antibiotic-resistant and biofilm-forming bacteria have surprisingly increased over recent years. On the contrary, the rate of development of new antibiotics to treat these emerging superbugs is very slow. Therefore, the aim of this study was to prepare novel nanobiotic formulations to improve the antimicrobial activity of three antibiotics (linezolid, doxycycline, and clindamycin) against Staphylococci. Antibiotics were formulated as nanoemulsions and evaluated for their antimicrobial activities and cytotoxicities. Cytotoxicity of the conventional antibiotics and nanobiotics was analyzed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay on rat hepatocytes. Half-maximal inhibitory concentration (IC50) was estimated from an experimentally derived dose-response curve for each concentration using GraphPad Prism software. Upon quantitative assessment of Staphylococcus biofilm formation, eighty-four isolates (66.14 %) were biofilm forming. Linezolid and doxycycline nanobiotics exhibited promising antibacterial activities. On the contrary, clindamycin nanobiotic exhibited poor antibacterial activity. Minimum biofilm inhibitory concentrations showed that 73.68 %, 45.6%, and 5.2% of isolates were sensitive to linezolid, doxycycline, and clindamycin nanobiotics, respectively. Results of this study revealed that antibiotics loaded in nanosystems had a higher antimicrobial activity and lower cytotoxicities as compared to those of conventional free antibiotics, indicating their potential therapeutic values.
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Wolf M, Reiter F, Heuser T, Kotisch H, Klang V, Valenta C. Monoacyl-phospatidylcholine based drug delivery systems for lipophilic drugs: Nanostructured lipid carriers vs. nano-sized emulsions. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Palcsó B, Zelkó R. Different types, applications and limits of enabling excipients of pharmaceutical dosage forms. DRUG DISCOVERY TODAY. TECHNOLOGIES 2018; 27:21-39. [PMID: 30103860 DOI: 10.1016/j.ddtec.2018.04.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/06/2018] [Accepted: 04/09/2018] [Indexed: 01/10/2023]
Abstract
Along with the development of novel drug delivery systems the material science is also advancing. Conventional and novel synthetic or natural excipients provide opportunities to design dosage forms of the required features including their bioavailability. Emerging trends in the design and development of drug products indicate an increasing need for the functionality-related characterization of excipients. The purpose of this review is to provide an overview of different types of excipients in relation to their application possibilities in various dosage forms with special focus on the enabling excipients. The study also summarizes the applied excipient systems of research formulations and dosage forms available on the market.
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Affiliation(s)
- Barnabás Palcsó
- University Pharmacy Department of Pharmacy Administration, Semmelweis University, Hogyes E. Street 7-9, H-1092 Budapest, Hungary
| | - Romána Zelkó
- University Pharmacy Department of Pharmacy Administration, Semmelweis University, Hogyes E. Street 7-9, H-1092 Budapest, Hungary.
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18
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Cho HY, Lee T, Yoon J, Han Z, Rabie H, Lee KB, Su WW, Choi JW. Magnetic Oleosome as a Functional Lipophilic Drug Carrier for Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:9301-9309. [PMID: 29488744 DOI: 10.1021/acsami.7b19255] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In the present study, we fabricated magnetic oleosomes functionalized with recombinant proteins as a new carrier for oil-based lipophilic drugs for cancer treatment. The bioengineered oleosome is composed of neutral lipids surrounded by a phospholipid monolayer with embedded oleosin fusion proteins. The oleosin was genetically fused to a nanobody of a green fluorescent protein (GFP). A recombinant protein consisting of immunoglobulin-binding protein LG fused to GFP was used to couple the oleosome to an antibody for targeted delivery to breast cancer cells. The lipid core of the oleosome was loaded with magnetic nanoparticles and carmustine as the lipophilic drug. The magnetic oleosome was characterized using transmission electron microscopy and dynamic light scattering. Moreover, the specific delivery of oleosome into the target cancer cell was investigated via confocal microscopy. To examine the cell viability of the delivered oleosome, a conventional 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was carried out. Furthermore, an animal study was conducted to confirm the effect resulting from the delivery of the anticancer drug-loaded oleosomes. Taken together, the fabricated lipophilic drug-loaded magnetic oleosome can be a powerful tool for oil-based drug delivery agent for cancer therapy.
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Affiliation(s)
- Hyeon-Yeol Cho
- Department of Chemical & Biomolecular Engineering , Sogang University , Seoul 04107 , Korea
- Department of Chemistry and Chemical Biology, Rutgers , The State University of New Jersey , Piscataway , New Jersey 08854 , United States
| | - Taek Lee
- Department of Chemical & Biomolecular Engineering , Sogang University , Seoul 04107 , Korea
- Department of Chemical Engineering , Kwangwoon University , Seoul 01897 , Korea
| | - Jinho Yoon
- Department of Chemical & Biomolecular Engineering , Sogang University , Seoul 04107 , Korea
| | - Zhenlin Han
- Department of Molecular Biosciences and Bioengineering , University of Hawaii at Manoa , Honolulu , Hawaii 96822 , United States
| | - Hudifah Rabie
- Department of Chemistry and Chemical Biology, Rutgers , The State University of New Jersey , Piscataway , New Jersey 08854 , United States
| | - Ki-Bum Lee
- Department of Chemistry and Chemical Biology, Rutgers , The State University of New Jersey , Piscataway , New Jersey 08854 , United States
- College of Pharmacy , Kyung Hee University , Seoul 02447 , Korea
| | - Wei Wen Su
- Department of Molecular Biosciences and Bioengineering , University of Hawaii at Manoa , Honolulu , Hawaii 96822 , United States
| | - Jeong-Woo Choi
- Department of Chemical & Biomolecular Engineering , Sogang University , Seoul 04107 , Korea
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19
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Tran T, Rades T, Müllertz A. Formulation of self-nanoemulsifying drug delivery systems containing monoacyl phosphatidylcholine and Kolliphor ® RH40 using experimental design. Asian J Pharm Sci 2017; 13:536-545. [PMID: 32104428 PMCID: PMC7037638 DOI: 10.1016/j.ajps.2017.09.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/25/2017] [Accepted: 09/06/2017] [Indexed: 12/03/2022] Open
Abstract
The development of self-nanoemulsifying drug delivery systems (SNEDDS) to enhance the oral bioavailability of lipophilic drugs is usually based on traditional one-factor-at-a-time approaches. These approaches may be inadequate to analyse the effect of each excipient and their potential interactions on the emulsion droplet size formed when dispersing the SNEDDS in an aqueous environment. The current study investigates the emulsion droplet sizes formed from SNEDDS containing different levels of the natural surfactant monoacyl phosphatidylcholine to reduce the concentration of the synthetic surfactant polyoxyl 40 hydrogenated castor oil (Kolliphor® RH40). Monoacyl phosphatidylcholine was used in the form of Lipoid S LPC 80 (LPC, containing approximately 80% monoacyl phosphatidylcholine, 13% phosphatidylcholine and 4% concomitant components). The investigated SNEDDS comprised of long-chain or medium-chain glycerides (40% to 75%), Kolliphor® RH40 (5% to 55%), LPC (0 to 40%) and ethanol (0 to 10%). D-optimal design, multiple linear regression, and partial least square regression were used to screen different SNEDDS within the investigated excipient ranges and to analyse the effect of each excipient on the resulting droplet size of the dispersed SNEDDS measured by dynamic light scattering. All investigated formulations formed nano-emulsions with droplet sizes from about 20 to 200 nm. The use of medium-chain glycerides was more likely to result in smaller and more monodisperse droplet sizes compared to the use of long-chain glycerides. Kolliphor® RH40 exhibited the most significant effect on reducing the emulsion droplet sizes. Increasing LPC concentration increased the emulsion droplet sizes, possibly because of the reduction of Kolliphor® RH40 concentration. A higher concentration of ethanol resulted in an insignificant reduction of the emulsion droplet size. The study provides different ternary diagrams of SNEDDS containing LPC and Kolliphor® RH40 as a reference for formulation developers.
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Affiliation(s)
- Thuy Tran
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Thomas Rades
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.,Bioneer: FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
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20
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Khurana RK, Beg S, Burrow AJ, Vashishta RK, Katare OP, Kaur S, Kesharwani P, Singh KK, Singh B. Enhancing biopharmaceutical performance of an anticancer drug by long chain PUFA based self-nanoemulsifying lipidic nanomicellar systems. Eur J Pharm Biopharm 2017; 121:42-60. [PMID: 28887099 DOI: 10.1016/j.ejpb.2017.09.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/22/2017] [Accepted: 09/02/2017] [Indexed: 12/18/2022]
Abstract
The aim of this study was to develop polyunsaturated fatty acid (PUFA) long chain glyceride (LCG) enriched self-nanoemulsifying lipidic nanomicelles systems (SNELS) for augmenting lymphatic uptake and enhancing oral bioavailability of docetaxel and compare its biopharmaceutical performance with a medium-chain fatty acid glyceride (MCG) SNELS. Equilibrium solubility and pseudo ternary phase studies facilitated the selection of suitable LCG and MCG. The critical material attributes (CMAs) and critical process parameters (CPPs) were earmarked using Placket-Burman Design (PBD) and Fractional Factorial Design (FFD) for LCG- and MCG-SNELS respectively, and nano micelles were subsequently optimized using I- and D-optimal designs. Desirability function unearthed the optimized SNELS with Temul <5min, Dnm <100nm, Rel15min >85% and Perm45min >75%. The SNELS demonstrated efficient biocompatibility and energy dependent cellular uptake, reduced P-gp efflux and increased permeability using bi-directional Caco-2 model. Optimal PUFA enriched LCG-SNELS exhibited distinctly superior permeability and absorption parameters during ex vivo permeation, in situ single pass intestinal perfusion, lymphatic uptake and in vivo pharmacokinetic studies over MCG-SNELS.
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Affiliation(s)
- Rajneet Kaur Khurana
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Sarwar Beg
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Andrea Julie Burrow
- School of Pharmacy and Biomedical Sciences, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Rakesh K Vashishta
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - O P Katare
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Satvinder Kaur
- GHG Khalsa of Pharmacy, Gurusar Sadhar, Ludhiana 141104, India
| | - Prashant Kesharwani
- Department of Pharmaceutical Technology, International Medical University, Bukit Jalil, Kuala Lumpur, Malaysia; Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, UP 226031, India
| | - Kamalinder K Singh
- School of Pharmacy and Biomedical Sciences, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom.
| | - Bhupinder Singh
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Chandigarh 160014, India; UGC-Centre of Excellence in Applications of Nanomaterials, Nanoparticles and Nanocomposites (Biomedical Sciences), Panjab University, Chandigarh 160014, India.
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21
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van Hoogevest P. Review - An update on the use of oral phospholipid excipients. Eur J Pharm Sci 2017; 108:1-12. [PMID: 28711714 DOI: 10.1016/j.ejps.2017.07.008] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 06/30/2017] [Accepted: 07/07/2017] [Indexed: 12/24/2022]
Abstract
The knowledge and experiences obtained with oral phospholipid excipients is increasing continuously. Nevertheless the present number of oral products using these excipients as essential excipient is very limited. This is remarkable to note, since phospholipids play a significant role in the food uptake mechanisms of the GI tract and these mechanisms could be translated into suitable dosage forms and corresponding drug delivery strategies. In addition, phospholipid excipients are multifunctional biodegradable, non-toxic excipients, which can be used in oral dosage forms as wetting agents, emulsifier, solubilizer and matrix forming excipients. Especially natural phospholipid excipients, made from renewable sources, may be considered as environmentally friendly excipients and as a viable alternative to synthetic phospholipid and non-phospholipid analogues. This review describes 1) essential physico-chemical properties of oral phospholipid excipients 2) the fate of orally administered phospholipids with respect to absorption and metabolism in the GI tract 3) the main dosage forms used for oral administration containing phospholipids. These elements are critically assessed and areas of future research of interest for the use of oral phospholipid excipients are summarized.
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Affiliation(s)
- Peter van Hoogevest
- Phospholipid Research Center, Im Neuenheimer Feld 515, D-69120 Heidelberg, Germany.
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22
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Park K. The lack of IVIVC for monoacyl phospholipid-based self-emulsifying drug delivery systems. J Control Release 2017; 255:279. [DOI: 10.1016/j.jconrel.2017.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Tran T, Siqueira SD, Amenitsch H, Müllertz A, Rades T. In vitro and in vivo performance of monoacyl phospholipid-based self-emulsifying drug delivery systems. J Control Release 2017; 255:45-53. [DOI: 10.1016/j.jconrel.2017.03.393] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/25/2017] [Accepted: 03/28/2017] [Indexed: 12/23/2022]
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24
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Prajapat MD, Patel NJ, Bariya A, Patel SS, Butani SB. Formulation and evaluation of self-emulsifying drug delivery system for nimodipine, a BCS class II drug. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.02.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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25
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Tran T, Chakraborty A, Xi X, Bohets H, Cornett C, Tsinman K, Rades T, Müllertz A. Using Potentiometric Free Drug Sensors to Determine the Free Concentration of Ionizable Drugs in Colloidal Systems. J Pharm Sci 2017; 107:103-112. [PMID: 28549906 DOI: 10.1016/j.xphs.2017.05.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 05/10/2017] [Accepted: 05/11/2017] [Indexed: 10/19/2022]
Abstract
The present study investigates the use of free drug sensors (FDS) to measure free ionized drug concentrations in colloidal systems, including micellar solutions, emulsions, and lipid formulations during in vitro lipolysis. Diphenhydramine hydrochloride (DPH) and loperamide hydrochloride (LOP) were selected as model drugs. Self-diffusion nuclear magnetic resonance studies were performed and confirmed the entrapment of drugs in micelles in Brij 35 and sodium taurodeoxycholate (TDC)/phosphatidylcholine (PC) micellar solutions. The FDS measurements indicated that with a constant level of drug, the percentage of free DPH and LOP decreased from 84% to 57% and from 51% to 18%, respectively, as the concentration of Brij 35 was increased from 4.7 to 22 mM; and from 99% to 46% and from 100% to 21%, respectively, as the concentration of TDC/PC was increased from 0.49/0.04 to 8.85/0.78 mM. During the in vitro lipolysis of a lipid formulation, free drug concentration decreased with lipolysis time. The percentage of free DPH was higher than for LOP in the same colloidal system because DPH is less lipophilic than LOP. The study showed that FDS can be used to monitor the free drug concentration in colloidal systems with fast response, no sample treatment and simple data analysis.
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Affiliation(s)
- Thuy Tran
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Anjan Chakraborty
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Xi Xi
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Hugo Bohets
- Octens, Drie Eikenstraat 661, 2650 Edegem, Belgium
| | - Claus Cornett
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | | | - Thomas Rades
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; Bioneer:FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.
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26
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Tran T, Siqueira SDVS, Amenitsch H, Rades T, Müllertz A. Monoacyl phosphatidylcholine inhibits the formation of lipid multilamellar structures during in vitro lipolysis of self-emulsifying drug delivery systems. Eur J Pharm Sci 2016; 108:62-70. [PMID: 27890596 DOI: 10.1016/j.ejps.2016.11.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 11/21/2016] [Accepted: 11/22/2016] [Indexed: 12/16/2022]
Abstract
The colloidal structures formed during lipolysis of self-emulsifying drug delivery systems (SEDDS) might affect the solubilisation and possibly the absorption of drugs. The aim of the current study is to elucidate the structures formed during the in vitro lipolysis of four SEDDS containing medium-chain glycerides and caprylocaproyl polyoxyl-8 glycerides (Labrasol), with or without monoacyl phosphatidylcholine (MAPC). In situ synchrotron small-angle X-ray scattering (SAXS) was combined with ex situ cryogenic transmission electron microscopy (cryo-TEM) and dynamic light scattering (DLS) to elucidate the generated structures. The SAXS scattering curves obtained during the lipolysis of MAPC-free SEDDS containing 43-60% w/w Labrasol displayed a lamellar phase peak at q=2.13nm-1 that increased with Labrasol concentration, suggesting the presence of multilamellar structures (MLS) with a d-spacing of 2.95nm. However, SEDDS containing 20-30% w/w MAPC did not form MLS during the lipolysis. The cryo-TEM and DLS studies showed that MAPC-free SEDDS formed coarse emulsions while MAPC-containing SEDDS formed nanoemulsions during the dispersion in digestion medium. From the first minute and during the entire lipolysis process, SEDDS both with and without MAPC generated uni-, bi-, and oligo-lamellar vesicles. The lipolysis kinetics in the first minutes of the four SEDDS correlated with an increased intensity of the SAXS curves and the rapid transformation from lipid droplets to vesicles observed by cryo-TEM. In conclusion, the study elucidates the structures formed during in vitro lipolysis of SEDDS and the inhibitory effect of MAPC on the formation of MLS.
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Affiliation(s)
- Thuy Tran
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Scheyla D V S Siqueira
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Heinz Amenitsch
- Institute for Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9/V, A-8010 Graz, Austria
| | - Thomas Rades
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; Bioneer: FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.
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