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Zheng B, Yang S, Fan C, Bi Y, Du L, Zhao L, Lee RJ, Teng L, Teng L, Xie J. Oleic acid derivative of polyethylenimine-functionalized proliposomes for enhancing oral bioavailability of extract of Ginkgo biloba. Drug Deliv 2015; 23:1194-203. [PMID: 26635185 DOI: 10.3109/10717544.2015.1101790] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The present systematic study focused to investigate the oleic acid derivative of branched polyethylenimine (bPEI-OA)-functionalized proliposomes for improving the oral delivery of extract of Ginkgo biloba (GbE). The GbE proliposomes were prepared by a spray drying method at varying ratios of egg yolk phosphatidylcholine and cholesterol, and the optimized formulation was tailored with bPEI-OA to obtain bPEI-OA-functionalized proliposomes. The formulations were characterized for particle size, zeta potential, and entrapment efficiency. The release of GbE from proliposomes exhibited a sustained release. And the release rate was regulated by changing the amount of bPEI-OA on the proliposomes. The physical state characterization studies showed some interactions between GbE and other materials, such as hydrogen bonds and van der Waals forces during the process of preparation of proliposomes. The in situ single-pass perfusion and oral bioavailability studies were performed in rats. The significant increase in absorption constant (Ka) and apparent permeability coefficient (Papp) from bPEI-OA-functionalized proliposomes indicated the importance of positive charge for effective uptake across the gastrointestinal tract. The oral bioavailability of bPEI-OA-functionalized proliposomes was remarkable enhanced in comparison with control and conventional proliposomes. The bPEI-OA-functionalized proliposomes showed great potential of improving oral absorption of GbE as a suitable carrier.
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Affiliation(s)
- Bin Zheng
- a College of Life Science, Jilin University , Changchun , Jilin , China
| | - Shuang Yang
- a College of Life Science, Jilin University , Changchun , Jilin , China
| | - Chunyu Fan
- a College of Life Science, Jilin University , Changchun , Jilin , China
| | - Ye Bi
- a College of Life Science, Jilin University , Changchun , Jilin , China
| | - Lin Du
- b The First Hospital of Jilin University , Changchun , Jilin , China
| | - Lingzhi Zhao
- c The Secord Hospital of Jilin University , Changchun , Jilin , China , and
| | - Robert J Lee
- a College of Life Science, Jilin University , Changchun , Jilin , China .,d College of Pharmacy, The Ohio State University , Columbus , OH , USA
| | - Lesheng Teng
- a College of Life Science, Jilin University , Changchun , Jilin , China
| | - Lirong Teng
- a College of Life Science, Jilin University , Changchun , Jilin , China
| | - Jing Xie
- a College of Life Science, Jilin University , Changchun , Jilin , China
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Yang S, Yang X, Liu Y, Zheng B, Meng L, Lee RJ, Xie J, Teng L. Non-covalent complexes of folic acid and oleic acid conjugated polyethylenimine: An efficient vehicle for antisense oligonucleotide delivery. Colloids Surf B Biointerfaces 2015; 135:274-282. [PMID: 26263216 PMCID: PMC4856292 DOI: 10.1016/j.colsurfb.2015.07.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 07/09/2015] [Accepted: 07/19/2015] [Indexed: 10/23/2022]
Abstract
Polyethylenimine (PEI) was conjugated to oleic acid (PEI-OA) and evaluated as a delivery agent for LOR-2501, an antisense oligonucleotide against ribonucleotide reductase R1 subunit. PEI-OA/LOR-2501 complexes were further coated with folic acid (FA/PEI-OA/LOR-2501) and evaluated in tumor cells. The level of cellular uptake of FA/PEI-OA/LOR-2501 was more than double that of PEI/LOR-2501 complexes, and was not affected by the expression level of folate receptor (FR) on the cell surface. Efficient delivery was seen in several cell lines. Furthermore, pathway specific cellular internalization inhibitors and markers were used to reveal the principal mechanism of cellular uptake. FA/PEI-OA/LOR-2501 significantly induced the downregulation of R1 mRNA and R1 protein. This novel formulation of FA/PEI-OA provides a reliable and highly efficient method for delivery of oligonucleotide and warrants further investigation.
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Affiliation(s)
- Shuang Yang
- College of Life Sciences, Jilin University, Changchun 130012, China
| | - Xuewei Yang
- College of Life Sciences, Jilin University, Changchun 130012, China
| | - Yan Liu
- College of Life Sciences, Jilin University, Changchun 130012, China
| | - Bin Zheng
- College of Life Sciences, Jilin University, Changchun 130012, China
| | - Lingjun Meng
- College of Life Sciences, Jilin University, Changchun 130012, China
| | - Robert J Lee
- College of Life Sciences, Jilin University, Changchun 130012, China; College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Jing Xie
- College of Life Sciences, Jilin University, Changchun 130012, China.
| | - Lesheng Teng
- College of Life Sciences, Jilin University, Changchun 130012, China; State Key Laboratory of Long-acting and Targeting Drug Delivery System, Yantai 264000, China.
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Kalepu S, Nekkanti V. Insoluble drug delivery strategies: review of recent advances and business prospects. Acta Pharm Sin B 2015; 5:442-53. [PMID: 26579474 PMCID: PMC4629443 DOI: 10.1016/j.apsb.2015.07.003] [Citation(s) in RCA: 746] [Impact Index Per Article: 82.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 05/09/2015] [Accepted: 05/26/2015] [Indexed: 12/23/2022] Open
Abstract
The emerging trends in the combinatorial chemistry and drug design have led to the development of drug candidates with greater lipophilicity, high molecular weight and poor water solubility. Majority of the failures in new drug development have been attributed to poor water solubility of the drug. Issues associated with poor solubility can lead to low bioavailability resulting in suboptimal drug delivery. About 40% of drugs with market approval and nearly 90% of molecules in the discovery pipeline are poorly water-soluble. With the advent of various insoluble drug delivery technologies, the challenge to formulate poorly water soluble drugs could be achieved. Numerous drugs associated with poor solubility and low bioavailabilities have been formulated into successful drug products. Several marketed drugs were reformulated to improve efficacy, safety and patient compliance. In order to gain marketing exclusivity and patent protection for such products, revitalization of poorly soluble drugs using insoluble drug delivery technologies have been successfully adopted by many pharmaceutical companies. This review covers the recent advances in the field of insoluble drug delivery and business prospects.
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Affiliation(s)
- Sandeep Kalepu
- Department of Pharmaceutical Technology, Shri Vishnu College of Pharmacy, Bhimavaram 534202, Andhra Pradesh, India
- Corresponding author. Tel.: +91 9948444546; fax: +91 8816 250863.
| | - Vijaykumar Nekkanti
- College of Pharmaceutical Sciences, Western University of Health Sciences, Pomona, California 91766, USA
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Zheng B, Teng L, Xing G, Bi Y, Yang S, Hao F, Yan G, Wang X, Lee RJ, Teng L, Xie J. Proliposomes containing a bile salt for oral delivery of Ginkgo biloba extract: Formulation optimization, characterization, oral bioavailability and tissue distribution in rats. Eur J Pharm Sci 2015; 77:254-64. [DOI: 10.1016/j.ejps.2015.06.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 06/11/2015] [Accepted: 06/11/2015] [Indexed: 12/11/2022]
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Fong SYK, Brandl M, Bauer-Brandl A. Phospholipid-based solid drug formulations for oral bioavailability enhancement: A meta-analysis. Eur J Pharm Sci 2015; 80:89-110. [PMID: 26296863 DOI: 10.1016/j.ejps.2015.08.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 07/02/2015] [Accepted: 08/13/2015] [Indexed: 12/24/2022]
Abstract
Low bioavailability nowadays often represents a challenge in oral dosage form development. Solid formulations composed of drug and phospholipid (PL), which, upon contact with water, eventually form multilamellar liposomes (i.e. 'proliposomes'), are an emerging approach to solve such issue. Regarded as an 'improved' version of liposomes concerning storage stability, the potential and versatility of a range of such formulations for oral drug delivery have been extensively discussed. However, a systematic and quantitative analysis of the studies that applied solid PL for oral bioavailability enhancement is currently lacking. Such analysis is necessary for providing an overview of the research progress and addressing the question on how promising this approach can be on bioavailability enhancement. The current review performed a systematic search of references in three evidence-based English databases, Medline, Embase, and SciFinder, from the year of 1985 up till March 2015. A total of 112 research articles and 82 patents that involved solid PL-based formulations were identified. The majority of such formulations was intended for oral drug delivery (55%) and was developed to address low bioavailability issues (49%). A final of 54 studies that applied such formulations for bioavailability enhancement of 43 different drugs with poor water solubility and/or permeability were identified. These proof-of-concept studies with in vitro (n=31) and/or animal (n=23) evidences have been systematically summarized. Meta-analyses were conducted to measure the overall enhancement power (percent increase compared to control group) of solid PL formulations on drugs' solubility, permeability and oral bioavailability, which were found to be 127.4% (95% CI [86.1, 168.7]), 59.6% (95% CI [30.1, 89.0]), and 18.5% (95% CI [10.1, 26.9]) respectively. Correlations between the enhancement factors and in silico physiochemical properties of drugs were also performed to check if such approach can be used to identify the best candidates for oral solid PL formulation. In addition to scientific literature, 13 solid PL formulation-related patents that addressed the issue of low oral bioavailability have been identified and summarized; whereas no clinical study was identified from the current search. By providing systematic information and meta-analysis on studies that applied the principle of 'proliposomes' for oral bioavailability enhancement, the current review should be insightful for formulation scientists who wish to adopt the PL based approach to overcome the solubility, permeability and bioavailability issues of orally delivered drugs.
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Affiliation(s)
- Sophia Yui Kau Fong
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
| | - Martin Brandl
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Annette Bauer-Brandl
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
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Nekkanti V, Venkatesan N, Wang Z, Betageri GV. Improved oral bioavailability of valsartan using proliposomes: design, characterization andin vivopharmacokinetics. Drug Dev Ind Pharm 2015; 41:2077-88. [DOI: 10.3109/03639045.2015.1075026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Arzani G, Haeri A, Daeihamed M, Bakhtiari-Kaboutaraki H, Dadashzadeh S. Niosomal carriers enhance oral bioavailability of carvedilol: effects of bile salt-enriched vesicles and carrier surface charge. Int J Nanomedicine 2015; 10:4797-813. [PMID: 26251598 PMCID: PMC4524462 DOI: 10.2147/ijn.s84703] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Carvedilol (CRV) is an antihypertensive drug with both alpha and beta receptor blocking activity used to preclude angina and cardiac arrhythmias. To overcome the low, variable oral bioavailability of CRV, niosomal formulations were prepared and characterized: plain niosomes (without bile salts), bile salt-enriched niosomes (bilosomes containing various percentages of sodium cholate or sodium taurocholate), and charged niosomes (negative, containing dicetyl phosphate and positive, containing hexadecyl trimethyl ammonium bromide). All formulations were characterized in terms of encapsulation efficiency, size, zeta potential, release profile, stability, and morphology. Various formulations were administered orally to ten groups of Wistar rats (n=6 per group). The plasma levels of CRV were measured by a validated high-performance liquid chromatography (HPLC) method and pharmacokinetic properties of different formulations were characterized. Contribution of lymphatic transport to the oral bioavailability of niosomes was also investigated using a chylomicron flow-blocking approach. Of the bile salt-enriched vesicles examined, bilosomes containing 20% sodium cholate (F2) and 30% sodium taurocholate (F5) appeared to give the greatest enhancement of intestinal absorption. The relative bioavailability of F2 and F5 formulations to the suspension was estimated to be 1.84 and 1.64, respectively. With regard to charged niosomes, the peak plasma concentrations (Cmax) of CRV for positively (F7) and negatively charged formulations (F10) were approximately 2.3- and 1.7-fold higher than after a suspension. Bioavailability studies also revealed a significant increase in extent of drug absorption from charged vesicles. Tissue histology revealed no signs of inflammation or damage. The study proved that the type and concentration of bile salts as well as carrier surface charge had great influences on oral bioavailability of niosomes. Blocking the lymphatic absorption pathway significantly reduced oral bioavailability of CRV niosomes. Overall twofold enhancement in bioavailability in comparison with drug suspension confers the potential of niosomes as suitable carriers for improved oral delivery of CRV.
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Affiliation(s)
- Gelareh Arzani
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azadeh Haeri
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marjan Daeihamed
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Bakhtiari-Kaboutaraki
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Simin Dadashzadeh
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran ; Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Yingsukwattana K, Puttipipatkhachorn S, Ruktanonchai U, Sarisuta N. Enhanced permeability across Caco-2 cell monolayers by specific mannosylating ligand of buserelin acetate proliposomes. J Liposome Res 2015; 26:69-79. [PMID: 25945393 DOI: 10.3109/08982104.2015.1039030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Oral delivery of peptide and protein drugs still remains the area of challenges due to their low stability and permeability across GI tract. Among numerous attempts, the receptor-mediated drug targeting is a promising approach to enhance GI permeability. OBJECTIVE The aim of this study was to prepare mannosylated buserelin acetate (MANS-BA) proliposome powders grafted with N-octadecyl-d-mannopyranosylamine (SAMAN) as targeting moiety and evaluate their permeability across Caco-2 cell monolayers. MATERIALS AND METHODS The MANS-BA proliposome powders were prepared by coprecipitation method. The targeting moiety SAMAN was synthesized in-house and confirmed by characterization using Fourier transform infrared (FTIR) and differential scanning calorimeter (DSC). RESULTS The MANS-BA liposomes reconstituted from proliposome powders exhibited the oligolamellar vesicular structure of phospholipid bilayer. Their size, zeta potential and entrapment efficiency were in the ranges of 93.11-218.95 nm, -24.03 to -37.15 mV and 21.12-33.80%, respectively. The permeability of reconstituted MANS-BA liposomes across Caco-2 cell monolayers was significantly enhanced to about 1.2- and 2.2-fold over those of conventional BA liposomes and solution, respectively. DISCUSSION Increase in dicetylphosphate, cholesterol and SAMAN contents resulted in significant increase in size and zeta potential of reconstituted MAN-BA liposomes. The entrapment efficiency was increased with increasing dicetylphosphate and mannitol contents in liposomes containing cholesterol. CONCLUSIONS The significantly enhanced permeability across Caco-2 cell monolayers of MANS-BA liposomes might be due to the role of mannose receptor on intestinal enterocytes.
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Affiliation(s)
- Koson Yingsukwattana
- a Department of Manufacturing Pharmacy, Faculty of Pharmacy , Mahidol University , Bangkok , Thailand
| | - Satit Puttipipatkhachorn
- a Department of Manufacturing Pharmacy, Faculty of Pharmacy , Mahidol University , Bangkok , Thailand
| | - Uracha Ruktanonchai
- b National Nanotechnology Center, National Science and Technology Development Agency , Pathumthani , Thailand , and
| | - Narong Sarisuta
- c Division of Pharmaceutical Sciences, Faculty of Pharmacy , Thammasat University, Rangsit Center , Pathumthani , Thailand
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Gangishetty H, Eedara BB, Bandari S. Development of ketoprofen loaded proliposomal powders for improved gastric absorption and gastric tolerance: in vitro and in situ evaluation. Pharm Dev Technol 2014; 20:641-51. [PMID: 24820852 DOI: 10.3109/10837450.2014.908306] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of the current investigation was to improve dissolution rate, gastric absorption and tolerance of a water insoluble non-steroidal anti-inflammatory drug ketoprofen by developing proliposomal powders. Ketoprofen proliposomal powders were prepared by solvent evaporation method with varying ratios of hydrogenated soyphosphatidyl choline (HSPC) and cholesterol. The prepared proliposomal powders were characterized for vesicle size, micromeritics, entrapment efficiency and in vitro dissolution behavior. Proliposomal powder (KPL3) composed of equimolar ratios of HSPC and cholesterol loaded on pearlitol SD 200 was selected as optimized formulation as it produced smaller liposomes (5.24 ± 1.35 μm) upon hydration with highest entrapment efficiency (53.16 ± 0.06%). All proliposomal powders showed improved dissolution characteristics than pure drug, however dissolution of drug from KPL3 was found to be highest (91.17 ± 6.3) and which is about 24 times higher than pure ketoprofen within 5 min. The transformation of crystalline ketoprofen to amorphous form was confirmed by solid state characterization. The absorption rate per hour for pure ketoprofen and proliposomal formulation (KPL3) was assessed in the stomach by conducting in situ gastric absorption studies in Wistar rats and was found to be 27 ± 1.22 and 36.98 ± 1.95%, respectively. In conclusion, enhanced dissolution and gastric absorption rate of ketoprofen from proliposomal powders suggest them as potential candidate for oral bioavailability improvement of ketoprofen.
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Affiliation(s)
- Himabindu Gangishetty
- Department of Pharmaceutics, St. Peter's Institute of Pharmaceutical Sciences , Warangal, Andhra Pradesh , India
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Akhtar M, Imam SS, Afroz Ahmad M, Najmi AK, Mujeeb M, Aqil M. Neuroprotective study of Nigella sativa-loaded oral provesicular lipid formulation: in vitro and ex vivo study. Drug Deliv 2014; 21:487-94. [PMID: 24601853 DOI: 10.3109/10717544.2014.886640] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AIM The aim of this research was to develop proniosome (niosomes) of Nigella sativa (NS) to improve its drug release, gastrointestinal (GI) permeation and neuroprotective activity. MATERIALS AND METHODS Proniosomes were prepared by thin film method using various compositions of nonionic surfactants, cholesterol, and phosphatidylcholine. The optimum influence of different formulation variables of NS such as surfactant type, phosphatidylcholine and cholesterol concentration were optimized for size and entrapment efficiency. RESULTS AND DISCUSSION Results indicated that prepared niosome showed smaller size with high entrapment efficiency. The permeation enhancement ratio was found to be 2.16 in comparison to control with maximum flux value obtained was 7.23 µg/cm(2)/h for formulation NS6. The in vivo study revealed that the niosomal dispersion significantly improved neuroprotective activity in comparison to standard and control formulation. CONCLUSION In conclusion, developed proniosomal formulation could be one of the promising delivery system for NS with better drug release and GI permeation profiles and improved neuroprotective activity and merits for further study.
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Alai M, Lin WJ. Novel lansoprazole-loaded nanoparticles for the treatment of gastric acid secretion-related ulcers: in vitro and in vivo pharmacokinetic pharmacodynamic evaluation. AAPS JOURNAL 2014; 16:361-72. [PMID: 24519468 DOI: 10.1208/s12248-014-9564-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 01/06/2014] [Indexed: 12/14/2022]
Abstract
The objective of this study is to combine nanoparticle design and enteric coating technique to sustain the delivery of an acid-labile drug, lansoprazole (LPZ), in the treatment of acid reflux disorders. Lansoprazole-loaded Eudragit® RS100 nanoparticles (ERSNP-LPZ) as well as poly(lactic-co-glycolic acid) (PLGA) nanoparticles (PLGANP-LPZ) were prepared using a solvent evaporation/extraction method. The effects of nanoparticle charge and permeation enhancers on lansoprazole uptake was assessed in Caco-2 cells. The confocal microscopic images revealed the successful localization of nanoparticles in the cytoplasm of Caco-2 cells. The cellular uptake of positively charged Eudragit nanoparticles was significantly higher than that of negatively charged PLGA nanoparticles, which were enhanced by sodium caprate via the transcellular pathway. Both types of nanoparticles exhibited sustained drug release behavior in vitro. The oral administration of enteric-coated capsules filled with nanoparticles sustained and prolonged the LPZ concentration up to 24 h in ulcer-induced Wistar rats, and 92.4% and 89.2% of gastric ulcers healed after a 7-day treatment with either EC-ERSNP1010-Na caprate or EC-PLGANP1005-Na caprate, respectively.
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Affiliation(s)
- Milind Alai
- Graduate Institute of Pharmaceutical Sciences, School of Pharmacy, National Taiwan University, F 12 NO. 1 Jen Ai Rd. Sec. 1, Taipei, 100, Taiwan
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Basavaraj S, Betageri GV. Can formulation and drug delivery reduce attrition during drug discovery and development-review of feasibility, benefits and challenges. Acta Pharm Sin B 2014; 4:3-17. [PMID: 26579359 PMCID: PMC4590717 DOI: 10.1016/j.apsb.2013.12.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 12/06/2013] [Accepted: 12/16/2013] [Indexed: 12/21/2022] Open
Abstract
Drug discovery and development has become longer and costlier process. The fear of failure and stringent regulatory review process is driving pharmaceutical companies towards “me too” drugs and improved generics (505(b) (2)) fillings. The discontinuance of molecules at late stage clinical trials is common these years. The molecules are withdrawn at various stages of discovery and development process for reasons such as poor ADME properties, lack of efficacy and safety reasons. Hence this review focuses on possible applications of formulation and drug delivery to salvage molecules and improve the drugability. The formulation and drug delivery technologies are suitable for addressing various issues contributing to attrition are discussed in detail.
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Yasam VR, Jakki SL, Natarajan J, Kuppusamy G. A review on novel vesicular drug delivery: proniosomes. Drug Deliv 2013; 21:243-9. [DOI: 10.3109/10717544.2013.841783] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Gad HA, Kamel AO, Sammour OA, El Dessouky HF. Vesicular powder as carrier for doxycycline hydrochloride and metronidazole combination therapy. Pharm Dev Technol 2013; 19:755-68. [PMID: 23981239 DOI: 10.3109/10837450.2013.829098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Heba A Gad
- Pharmaceutics and Industrial Pharmacy Department, Faculty of Pharmacy, Ain Shams University , Cairo , Egypt
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Tan A, Rao S, Prestidge CA. Transforming Lipid-Based Oral Drug Delivery Systems into Solid Dosage Forms: An Overview of Solid Carriers, Physicochemical Properties, and Biopharmaceutical Performance. Pharm Res 2013; 30:2993-3017. [DOI: 10.1007/s11095-013-1107-3] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Accepted: 06/04/2013] [Indexed: 10/26/2022]
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Janga KY, Jukanti R, Sunkavalli S, Velpula A, Bandari S, Kandadi P, Veerareddy PR. In situabsorption and relative bioavailability studies of zaleplon loaded self-nanoemulsifying powders. J Microencapsul 2012; 30:161-72. [DOI: 10.3109/02652048.2012.714408] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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