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Gera S, Pooladanda V, Godugu C, Swamy Challa V, Wankar J, Dodoala S, Sampathi S. Rutin nanosuspension for potential management of osteoporosis: effect of particle size reduction on oral bioavailability, in vitro and in vivo activity. Pharm Dev Technol 2020; 25:971-988. [PMID: 32403972 DOI: 10.1080/10837450.2020.1765378] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Clinical significance of Rutin (RUT) is limited by poor dissolution rate and low oral bioavailability. The study was designed to improve the physicochemical and therapeutic potential of the drug by formulating nanosuspension (NS) for osteoporosis. Rutin nanosuspension (RUT-NS) was prepared after screening a range of stabilizers and their combinations at a different concentration by antisolvent precipitation technique. Effect of precipitation on crystallinity (differential scanning calorimetry DSC, X-ray diffraction studies XRD), morphology (scanning electron microscopy, SEM) and chemical interaction (attenuated total reflectance fourier-transform infrared spectroscopy ATR-FTIR) were studied through biophysical techniques. An optimized nanosuspension exhibited a minimum particle size of 122.85 ± 5.02 nm with higher dissolution of RUT-NS (87. 63 ± 2.29%) as compared to pure drug (39.77 ± 2.8 6%). The enhanced intestine absorption and apparent permeability were achieved due to the improved particle size, surface area and dissolution. RUT-NS displayed greater (3 folds) AUC0-24 h than pure drug. In vitro assays with RUT-NS depicted an increased cell proliferation, antioxidant (ROS) activity and osteocalcin production in MG-63 osteoblast cells. The augmented biochemical in vivo biomarkers and bone quality proved the protective effect of RUT-NS. The results supported RUT-NS as a potential therapy for maintaining bone health.
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Affiliation(s)
- Sonia Gera
- Department of Pharmaceutics, NIPER, Hyderabad, India
| | | | | | | | - Jitendra Wankar
- CÚRAM
- SFI Research Centres for Medical Devices, Department of Biomedical Sciences, National University of Ireland, Galway, Ireland
| | - Sujatha Dodoala
- Institute of Pharmaceutical technology, Sri Padmavathi Mahila Visvavidyalayam, Tirupati, India
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Zhang X, Li Z, Gao J, Wang Z, Gao X, Liu N, Li M, Zhang H, Zheng A. Preparation of Nanocrystals for Insoluble Drugs by Top-Down Nanotechnology with Improved Solubility and Bioavailability. Molecules 2020; 25:E1080. [PMID: 32121076 PMCID: PMC7179175 DOI: 10.3390/molecules25051080] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 01/03/2023] Open
Abstract
Midazolam is a rapidly effective benzodiazepine drug that is widely used as a sedative worldwide. Due to its poor solubility in a neutral aqueous solution, the clinical use of midazolam is significantly limited. As one of the most promising formulations for poorly water-soluble drugs, nanocrystals have drawn worldwide attention. We prepared a stable nanosuspension system that causes little muscle irritation. The particle size of the midazolam nanocrystals (MDZ/NCs) was 286.6 ± 2.19 nm, and the crystalline state of midazolam did not change in the size reduction process. The dissolution velocity of midazolam was accelerated by the nanocrystals. The pharmacokinetics study showed that the AUC0-t of the MDZ/NCs was 2.72-fold (p < 0.05) higher than that of the midazolam solution (MDZ/S), demonstrating that the bioavailability of the MDZ/NC injection was greater than that of MDZ/S. When midazolam was given immediately after the onset of convulsions, the ED50 for MDZ/NCs was significantly more potent than that for MDZ/S and DZP/S. The MDZ/NCs significantly reduced the malondialdehyde content in the hippocampus of the seizures model rats and significantly increased the glutathione and superoxide dismutase levels. These results suggest that nanocrystals significantly influenced the dissolution behavior, pharmacokinetic properties, anticonvulsant effects, and neuroprotective effects of midazolam and ultimately enhanced their efficacy in vitro and in vivo.
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Affiliation(s)
| | | | | | | | | | | | - Meng Li
- Department of Pharmaceutics, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, China, 27th Taiping Road, Haidian District, Beijing 100850, China (Z.L.); (J.G.); (Z.W.); (X.G.); (N.L.)
| | - Hui Zhang
- Department of Pharmaceutics, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, China, 27th Taiping Road, Haidian District, Beijing 100850, China (Z.L.); (J.G.); (Z.W.); (X.G.); (N.L.)
| | - Aiping Zheng
- Department of Pharmaceutics, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, China, 27th Taiping Road, Haidian District, Beijing 100850, China (Z.L.); (J.G.); (Z.W.); (X.G.); (N.L.)
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Brauner B, Schwarz P, Wirth M, Gabor F. Micro vs. nano: PLGA particles loaded with trimethoprim for instillative treatment of urinary tract infections. Int J Pharm 2020; 579:119158. [PMID: 32081799 DOI: 10.1016/j.ijpharm.2020.119158] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/11/2020] [Accepted: 02/16/2020] [Indexed: 01/06/2023]
Abstract
Recurring infections and increasing resistances continue to complicate treatment of urinary tract infections. To investigate alternative treatment options, trimethoprim loaded micro- (D[4;3] of 1-9 µm) and nanoparticles (Z-Avg of 200-400 nm) were prepared from two types of poly(d,l-lactic-co-glycolic acid) (PLGA) for instillative therapy. While PLGA 503H microparticles could not be loaded with more than 2.6% trimethoprim, PLGA 2300 entrapped 22%. When preparing nanoparticles, both types displayed an even higher drug load of up to 29% using PLGA 2300, while PLGA 503H drug load stagnated at 10%. After eight hours, drug release from microparticles amounted to 55% (503H) and 35% (2300) whereas total drug release occurred after 8 (503H) and 9 days (2300). In case of nanoparticles, trimethoprim was liberated much faster with 60% after 2 h and a complete release after 24 h from both polymers. PLGA 2300 seems to be the better choice for entrapment of trimethoprim in microparticles considering the drug load. Both polymers, however, seem to be viable options for nanoparticles. Due to the higher overall drug load, nanoparticles seem to be advantageous over microparticles for instillative therapy, especially when prepared with PLGA 2300.
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Affiliation(s)
- Bernhard Brauner
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Patrik Schwarz
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Michael Wirth
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Franz Gabor
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Althanstraße 14, 1090 Vienna, Austria.
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Rahman M, Ahmad S, Tarabokija J, Bilgili E. Roles of surfactant and polymer in drug release from spray-dried hybrid nanocrystal-amorphous solid dispersions (HyNASDs). POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.11.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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55
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Crystal Structural Analysis of DL-Mandelate Salt of Carvedilol and Its Correlation with Physicochemical Properties. CRYSTALS 2020. [DOI: 10.3390/cryst10010053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A 1:1 salt of carvedilol (CVD), an anti-hypertensive drug, with DL-mandelic acid (DL-MA) was crystallized from ethanol and the structure was characterized by X-ray single-crystal diffraction, revealing salt formation by transfer of an acidic proton from the COOH group of MA to the aliphatic (acyclic) secondary amino NH group of CVD. The crystal structure is triclinic, with a P-1 space group and unit cell parameters a = 9.8416(5) Å, b = 11.4689(5) Å, c = 14.0746(7) Å, α = 108.595(8), β = 95.182(7), γ = 107.323(8), V = 1406.95(15) Å3, and Z = 2. The asymmetric unit contained one protonated CVD and one MA anion, linked via an N+–H∙∙∙O¯ strong hydrogen bond and a ratio of 1:1. As previously reported, the thermal, spectroscopic, and powder X-ray diffraction properties of the salt of CVD with DL-MA (CVD_DL-MA) differed from CVD alone. The intrinsic dissolution rate of CVD_DL-MA was about 10.7 times faster than CVD alone in a pH 6.8 buffer.
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Touzet A, Pfefferlé F, Lamprecht A, Pellequer Y. Formulation of Ketoconazole Nanocrystal-Based Cryopellets. AAPS PharmSciTech 2020; 21:50. [PMID: 31900727 DOI: 10.1208/s12249-019-1570-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/17/2019] [Indexed: 01/09/2023] Open
Abstract
Commercial development of nanosuspensions for oral drug delivery generally involves a drying step which aims to generate a stable product that rapidly releases the nanocrystals once rehydrated and can be easily processed into a final dosage form (e.g., filled into hard capsule). Cryopelletisation is a freeze drying technique allowing the production of lyophilised micrometric spheres with good flowability. In the current work, the possibility to formulate redispersible ketoconazole nanocrystal-based cryopellets able to withstand intensive handling was investigated. Cryopellets were generated by first freezing regular droplets of nanosuspension using liquid nitrogen followed by water removal by sublimation in a standard freeze dryer. Low-friable cryopellets (< 1%) were produced by embedding the nanocrystals in a stabilizing hydroxypropyl cellulose SSL grade matrix, thus proving that these structures can withstand intensive handling. A threshold quantity of hydroxypropyl cellulose SSL grade (5/20 hydroxypropyl cellulose SSL grade-to-drug mass ratio) was required in combination with D-α-tocopherol polyethylene glycol 1000 succinate (vitamin E TPGS) to successfully recover the nanocrystals over storage. A further addition of micronised crospovidone has shown a positive effect on the dissolution performance of cryopellets. Altogether, this study demonstrated that the design of cryopellets combining the strengths of freeze-dried powders (porous internal structure, low residual humidity) and pellets (free-flowing units, mechanical resistance during handling) can potentially improve the nanocrystal's redispersibility compared with other drying techniques while facilitating the downstream processing.
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The elucidation of key factors for oral absorption enhancement of nanocrystal formulations: In vitro-in vivo correlation of nanocrystals. Eur J Pharm Biopharm 2019; 146:84-92. [PMID: 31816392 DOI: 10.1016/j.ejpb.2019.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/28/2019] [Accepted: 12/04/2019] [Indexed: 02/04/2023]
Abstract
Nanocrystal formulation is a well-established approach for improving oral absorption of poorly water-soluble drugs. However, it is difficult to predict the in vivo performance of nanocrystal formulations from in vitro dissolution studies. The object of the present study was to investigate the in vitro-in vivo correlation of nanocrystal formulations of different particle sizes. A microsuspension and three nanosuspensions with different particle sizes for model drugs, fenofibrate and megestrol acetate, were prepared. In the comparison between the microsuspension and the nanosuspension having the smallest particle sizes, drug permeation rates from the nanosuspension were about 3-fold higher in the dissolution-permeation study. On the other hand, the solubility enhancement effect due to nanocrystal formation was only up by 1.4-fold, suggesting that nanocrystal formulations dramatically improved not the solubility but the apparent permeability. The oral absorption rate in rats increased with particle size reduction. There were positive and very strong correlations (R2 > 0.95) between the in vitro permeation rate and in vivo maximum absorption rate. We concluded that the enhanced permeability rate due to nanocrystal formation is the main factor for improving oral absorption, and the in vitro dissolution-permeation study could be useful for predicting oral absorption enhancement of nanocrystal formulations.
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Lestari MLAD, Müller RH, Möschwitzer JP. The Scalability of Wet Ball Milling for The Production of Nanosuspensions. Pharm Nanotechnol 2019; 7:147-161. [PMID: 30931866 DOI: 10.2174/2211738507666190401142530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/10/2019] [Accepted: 03/25/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Miniaturization of nanosuspensions preparation is a necessity in order to enable proper formulation screening before nanosizing can be performed on a large scale. Ideally, the information generated at small scale is predictive for large scale production. OBJECTIVE This study was aimed to investigate the scalability when producing nanosuspensions starting from a 10 g scale of nanosuspension using low energy wet ball milling up to production scales of 120 g nanosuspension and 2 kg nanosuspension by using a standard high energy wet ball milling operated in batch mode or recirculation mode, respectively. METHODS Two different active pharmaceutical ingredients, i.e. curcumin and hesperetin, have been used in this study. The investigated factors include the milling time, milling speed, and the type of mill. RESULTS Comparable particle sizes of about 151 nm to 190 nm were obtained for both active pharmaceutical ingredients at the same milling time and milling speed when the drugs were processed at 10 g using low energy wet ball milling or 120 g using high energy wet ball milling in batch mode, respectively. However, an adjustment of the milling speed was needed for the 2 kg scale produced using high energy wet ball milling in recirculation mode to obtain particle sizes comparable to the small scale process. CONCLUSION These results confirm in general, the scalability of wet ball milling as well as the suitability of small scale processing in order to correctly identify the most suitable formulations for large scale production using high energy milling.
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Affiliation(s)
- Maria L A D Lestari
- Department of Pharmaceutics, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia.,Department of Pharmaceutics, Biopharmaceutics & NutriCosmetics, Institute of Pharmacy, Freie Universität, Berlin, Germany
| | - Rainer H Müller
- Department of Pharmaceutics, Biopharmaceutics & NutriCosmetics, Institute of Pharmacy, Freie Universität, Berlin, Germany
| | - Jan P Möschwitzer
- Department of Pharmaceutics, Biopharmaceutics & NutriCosmetics, Institute of Pharmacy, Freie Universität, Berlin, Germany.,Advance Pharma GmbH, Berlin, Germany
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Shi Y, Ma W, Gao M, Yang Y. Development of curcumin-loaded methoxy poly(ethylene glycol)-block- poly(caprolactone)-block-poly(1, 4, 8-Trioxa [4.6] spiro-9-undecanone) nanoparticles and studies on their in vitro anti-tumor activities. Colloids Surf B Biointerfaces 2019; 184:110525. [DOI: 10.1016/j.colsurfb.2019.110525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 09/20/2019] [Accepted: 09/23/2019] [Indexed: 12/14/2022]
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Lai F, Schlich M, Pireddu R, Fadda AM, Sinico C. Nanocrystals as Effective Delivery Systems of Poorly Water-soluble Natural Molecules. Curr Med Chem 2019; 26:4657-4680. [PMID: 30543163 DOI: 10.2174/0929867326666181213095809] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/24/2018] [Accepted: 10/31/2018] [Indexed: 12/20/2022]
Abstract
Natural products are an important source of therapeutically effective compounds throughout the world. Since ancient times, a huge amount of both plant extracts and isolated compounds have been largely employed in treatment and prevention of human disorders and, currently, more than 60% of the world's population trusts on plant medicaments as demonstrated by the increasing quantity of herbal therapeutics in the market. Unfortunately, several promising natural molecules for the treatment of the most diverse ailments are characterized by extremely unfavourable features, such as low water solubility and poor/irregular bioavailability, which hinder their clinical use. To overcome these limitations and to make herbal therapy more effective, different formulative approaches have been employed. Among the different strategies for increasing drug solubility, nanocrystals can be considered one of the most interesting and successful approaches. Drug nanocrystals are nanosized drug particles usually formulated as nanosuspensions, namely submicron dispersions in liquid media where surfactants, polymers, or a mixture of both act as stabilisers. In this review, we described the most significant results and progresses concerning drug nanocrystal formulations for the delivery of natural compounds with a significant pharmacological activity. The text is organized in nine sections, each focusing on a specific poorly water- soluble natural compound (apigenin, quercetin, rutin, curcumin, baicalin and baicalein, hesperetin and hesperidin, resveratrol, lutein, silybin). To foster the clinical translation of these natural nanomedicines, our opinion is that future research should pair the essential pharmacokinetic studies with carefully designed pre-clinical experiments, able to prove the formulation efficacy in relevant animal models in vivo.
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Affiliation(s)
- Francesco Lai
- Dept. Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - Michele Schlich
- Dept. Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - Rosa Pireddu
- Dept. Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - Anna Maria Fadda
- Dept. Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - Chiara Sinico
- Dept. Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
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Muramoto S, Gillen G, Collett C, Zeissler CJ, Garboczi EJ. ToF‐SIMS depth profiling of oral drug delivery films for 3D visualization of active pharmaceutical particles. SURF INTERFACE ANAL 2019. [DOI: 10.1002/sia.6707] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Shin Muramoto
- National Institute of Standards and Technology Gaithersburg MD 20895 USA
| | - Greg Gillen
- National Institute of Standards and Technology Gaithersburg MD 20895 USA
| | - Cayla Collett
- National Institute of Standards and Technology Gaithersburg MD 20895 USA
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Wang P, Cao X, Chu Y, Wang P. Ginkgolides-loaded soybean phospholipid-stabilized nanosuspension with improved storage stability and in vivo bioavailability. Colloids Surf B Biointerfaces 2019; 181:910-917. [PMID: 31382340 DOI: 10.1016/j.colsurfb.2019.06.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 05/31/2019] [Accepted: 06/22/2019] [Indexed: 10/26/2022]
Abstract
The purpose of this study was to investigate the effects of soybean phospholipid, as a steric stabilizer, on improving dissolution rate, storage stability and bioavailability of ginkgolides. The ginkgolides coarse powder, hydroxypropyl methylcellulose (HPMC), soybean phospholipid and sodium dodecyl sulfate (SDS) were mixed and wet-milled to prepare nanosuspension S1. Nanosuspension S2 was obtained by the same technique except adding the soybean phospholipid. Results of particle size showed that particle size (D50) of S1 significantly decreased from 44.25 μm to 0.373 μm. Results of differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD) and transmission electron microscope (TEM) showed that ginkgolides in nanosuspension still maintained its crystallinity, and the nanoparticles were all nearly circular and uniformly dispersed. Then, pellets F1 and F2 were prepared by layering S1 and S2 onto the microcrystalline cellulose (MCC) spheres, respectively. The dissolution rate of ginkgolide A (GA) and ginkgolide B (GB) in F1 was 98.3% and 97.7% in 30 min, respectively. It was much higher than F2 (89.0% and 86.5%) and coarse powder of ginkgolides (22.3% and 24.6%). According to the results of stability test, the storage stability of F1 was improved compared with F2. In addition, compared with coarse powder of ginkgolides, the relative bioavailability of GA and GB in F1 were up to (221.84 ± 106.67) % and (437.45 ± 336.43) %, respectively. The above results demonstrated that soybean phospholipid added to the nanosuspension played an important role in improving drug dissolution rate, storage stability and in vivo bioavailability: (1) The amphiphilic soybean phospholipid interacted with the drug, with the hydrophobic part adsorbed on the surface of the poorly soluble drug and the hydrophilic part exposed to the aqueous medium. This increases the wettability of the nanoparticles, which ensure a good redispersibility of the drug particles. (2) It could self-assemble to form an interfacial phospholipid film by surrounding the individual nanoparticles, which can produce enough steric hindrance to prevent nanoparticles from aggregation and ensure a rapid dissolution rate. (3) Soybean phospholipid and its hydrolysate formed strong micellar solubilizing vehicles with bile salts in vivo, stimulated the absorption process of ginkgolides. Thus, soybean phospholipid was a promising steric stabilizer in nanosuspension drug delivery system.
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Affiliation(s)
- Puxiu Wang
- Department of Pharmacy, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
| | - Xiuxiu Cao
- School of Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, PR China.
| | - Yang Chu
- Department of Pharmacy, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
| | - Puxiu Wang
- Department of Pharmacy, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
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Meruva S, Thool P, Karki S, Bowen W, Ghosh I, Kumar S. Downstream processing of irbesartan nanocrystalline suspension and mini-tablet development – Part II. Int J Pharm 2019; 568:118509. [DOI: 10.1016/j.ijpharm.2019.118509] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/07/2019] [Accepted: 07/09/2019] [Indexed: 12/13/2022]
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Rashid M, Malik MY, Singh SK, Chaturvedi S, Gayen JR, Wahajuddin M. Bioavailability Enhancement of Poorly Soluble Drugs: The Holy Grail in Pharma Industry. Curr Pharm Des 2019; 25:987-1020. [DOI: 10.2174/1381612825666190130110653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 01/24/2019] [Indexed: 02/07/2023]
Abstract
Background:
Bioavailability, one of the prime pharmacokinetic properties of a drug, is defined as the
fraction of an administered dose of unchanged drug that reaches the systemic circulation and is used to describe
the systemic availability of a drug. Bioavailability assessment is imperative in order to demonstrate whether the
drug attains the desirable systemic exposure for effective therapy. In recent years, bioavailability has become
the subject of importance in drug discovery and development studies.
Methods:
A systematic literature review in the field of bioavailability and the approaches towards its enhancement
have been comprehensively done, purely focusing upon recent papers. The data mining was performed
using databases like PubMed, Science Direct and general Google searches and the collected data was exhaustively
studied and summarized in a generalized manner.
Results:
The main prospect of this review was to generate a comprehensive one-stop summary of the numerous
available approaches and their pharmaceutical applications in improving the stability concerns, physicochemical
and mechanical properties of the poorly water-soluble drugs which directly or indirectly augment their bioavailability.
Conclusion:
The use of novel methods, including but not limited to, nano-based formulations, bio-enhancers,
solid dispersions, lipid-and polymer-based formulations which provide a wide range of applications not only
increases the solubility and permeability of the poorly bioavailable drugs but also improves their stability, and
targeting efficacy. Although, these methods have drastically changed the pharmaceutical industry demand for the
newer potential methods with better outcomes in the field of pharmaceutical science to formulate various dosage
forms with adequate systemic availability and improved patient compliance, further research is required.
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Affiliation(s)
- Mamunur Rashid
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Mohd Yaseen Malik
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Sandeep K. Singh
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Swati Chaturvedi
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Jiaur R Gayen
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
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Banerjee S, Pillai J. Solid lipid matrix mediated nanoarchitectonics for improved oral bioavailability of drugs. Expert Opin Drug Metab Toxicol 2019; 15:499-515. [PMID: 31104522 DOI: 10.1080/17425255.2019.1621289] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Introduction: Solid matrix mediated lipid nanoparticle formulations (LNFs) retain some of the best features of ideal drug carriers necessary for improving the oral absorption and bioavailability (BA) of both hydrophilic and hydrophobic drugs. LNFs with solid matrices may be typically categorized into three major types of formulations, viz., solid lipid nanoparticles (SLNs), nanostructured lipid carriers (NLCs) and lipid-drug conjugate nanoparticles (LDC-NPs). Solid matrix based LNFs are, potentially, the most appropriate delivery systems for poorly water soluble drugs in need of improved drug solubility, permeability, absorption, or increased oral BA. In addition, LNFs as matrices are able to encapsulate both hydrophobic and hydrophilic drugs in a single matrix based on their excellent ability to form cores and shells. Interestingly, LNFs also act as delivery devices to impart chemical stability to various orally administered drugs. Areas covered: Aim of the review is to forecast the presentation of pharmacokinetic characteristics of solid lipid matrix based nanocarriers which are typically biocompatible, biodegradable and non-toxic carrier systems for efficient oral delivery of various drugs. Efficient delivery is broadly mediated by the fact that lipophilic drugs are readily soluble in lipidic substrates that are capable of permeating across the gut epithelium following oral administration, subsequently delivering the moiety of interest more efficiently across the gut mucosal membrane. This enhances the overall BA of many drugs facing oral delivery challenges by improving their pharmacokinetic profile. This article specifically focuses on the biopharmaceutical and pharmacokinetic aspects of such solid lipid matrix based nanoformulations and possible mechanisms for better drug absorption and improved BA following oral administration. It also briefly reviews methods to access the efficacy of LNFs for improving oral BA of drugs, regulatory aspects and some interesting lipid-derived commercial formulations, with a concluding remark. Expert opinion: LNFs enhance the overall BA of many drugs facing oral delivery challenges by improving their pharmacokinetic profile.
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Affiliation(s)
- Subham Banerjee
- a Department of Pharmaceutics , National Institute of Pharmaceutical Education & Research (NIPER) , Guwahati , Assam , India.,b Centre for Bio-design (CBD) , Translational Health Science & Technology Institute (THSTI) , Faridabad , Haryana , India
| | - Jonathan Pillai
- b Centre for Bio-design (CBD) , Translational Health Science & Technology Institute (THSTI) , Faridabad , Haryana , India
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Pade D, Jamei M, Turner DB, Mistry B, Martinez MN. Danazol oral absorption modelling in the fasted dog: An example of mechanistic understanding of formulation effects on drug pharmacokinetics. Eur J Pharm Biopharm 2019; 141:191-209. [PMID: 31150808 DOI: 10.1016/j.ejpb.2019.05.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 05/01/2019] [Accepted: 05/27/2019] [Indexed: 10/26/2022]
Abstract
Oral bioavailability of poorly water soluble (BCS II) drugs like danazol can be minimal without the necessary formulation strategies. Availability of in vitro physicochemical and in vivo pharmacokinetic studies can be valuable when designing these strategies but cannot reveal the drug-formulation-gastrointestinal physiology interplay that impact the successful optimization of intestinal solubilization and resulting oral drug absorption. In silico mechanistic oral drug absorption models can serve as a tool for providing this important perspective and for integrating information generated across various in vivo and in vitro studies. In this work, we detail the development and application of the Simcyp canine ADAM model to nine danazol oral formulations and compare the model predictions to caninein vivo pharmacokinetic data from published literature. The application of this mechanistic approach revealed insights suggesting: (1) complete danazol solubilization in vitro may lead to an over-estimation of oral bioavailability when predictions are not corrected for the in vivo conditions promoting gut luminal precipitation; (2) some solubilizing excipients can influence intestinal physiology in a manner that may reduce danazol absorption; (3) danazol-formulation-luminal bile salts interplay can result in the formation of mixed micelles that negatively impact danazol intestinal permeability; and (4) the magnitude of danazol bioavailability enhancement associated with the use of solubilizing agents can be affected by the presence of saturable gut metabolism that can lead to concentration-dependent differences in its influence in vivo formulation behaviour at high versus low doses.
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Affiliation(s)
- Devendra Pade
- Certara UK Limited, Simcyp Division, 1 Concourse Way, Sheffield S1 2BJ, United Kingdom
| | - Masoud Jamei
- Certara UK Limited, Simcyp Division, 1 Concourse Way, Sheffield S1 2BJ, United Kingdom
| | - David B Turner
- Certara UK Limited, Simcyp Division, 1 Concourse Way, Sheffield S1 2BJ, United Kingdom
| | - Bipin Mistry
- US FDA Center for Veterinary Medicine, Rockville, MD 20852, United States; Eisai Inc., Woodcliff Lake, NJ 07677, United States(1)
| | - Marilyn N Martinez
- US FDA Center for Veterinary Medicine, Rockville, MD 20852, United States.
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67
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Tanaka R, Hattori Y, Horie Y, Kamada H, Nagato T, Otsuka M. Characterization of Amorphous Solid Dispersion of Pharmaceutical Compound with pH-Dependent Solubility Prepared by Continuous-Spray Granulator. Pharmaceutics 2019; 11:pharmaceutics11040159. [PMID: 30987131 PMCID: PMC6523299 DOI: 10.3390/pharmaceutics11040159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/22/2019] [Accepted: 04/01/2019] [Indexed: 12/31/2022] Open
Abstract
A continuous-spray granulator (CTS-SGR) is a one-step granulation technology capable of using solutions or suspensions. The present research objectives were, (1) to reduce the manufacturing operations for solid dosage formulations, (2) to make amorphous solid dispersion (ASD) granules without pre-preparation of amorphous solids of active pharmaceutical ingredients (API), and (3) to characterize the obtained SGR granules by comprehensive pharmaceutical analysis. Rebamipide (RBM), a biopharmaceutical classification system class IV drug, that has low solubility or permeability in the stomach, was selected as a model compound. Five kind of granules with different concentrations of polyvinylpyrrolidone/vinyl acetate copolymer (PVP-VA) were prepared using a one-step SGR process. All of the SGR granules could be produced in amorphous or ASD form and their thermodynamic stability was very high because of high glass transition temperatures (>178 °C). They were unstable in 20 °C/75%RH; however, their stability was improved according to the proportion of polymer. The carboxy group of RBM was ionized in the granules and interactions appeared between RBM and PVP-VA, with the formation of an ASD confirmed and the solubility was enhanced compared with bulk RBM crystals. The SGR methodology has the possibility of contributing to process development in the pharmaceutical industry.
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Affiliation(s)
- Ryoma Tanaka
- Graduate School of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Yusuke Hattori
- Graduate School of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
- Faculty of Pharmacy, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
- Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
| | - Yukun Horie
- Faculty of Pharmacy, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
| | - Hitoshi Kamada
- Research & Development Department, Technical Division, Powrex Corporation, 5-5-5 Kitagawara, Itami, Hyogo 664-0837, Japan.
| | - Takuya Nagato
- Research & Development Department, Technical Division, Powrex Corporation, 5-5-5 Kitagawara, Itami, Hyogo 664-0837, Japan.
| | - Makoto Otsuka
- Graduate School of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
- Faculty of Pharmacy, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
- Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
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68
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Funahashi I, Kondo K, Ito Y, Yamada M, Niwa T. Novel contamination-free wet milling technique using ice beads for poorly water-soluble compounds. Int J Pharm 2019; 563:413-425. [PMID: 30953764 DOI: 10.1016/j.ijpharm.2019.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 03/13/2019] [Accepted: 04/03/2019] [Indexed: 10/27/2022]
Abstract
The aim of this study is to establish a contamination-free milling method using ice beads instead of conventional hard beads such as metal or ceramics. Ice beads, which melt after the milling process to form water, would solve the contamination issue attributed to bead breakage or abrasion. The technique/method for preparing spherical ice beads of mono-dispersed size ranging from 150 to 3000 μm was newly developed. An oscillation beads milling apparatus was used for pulverization. In the initial stages of ice beads milling, the process is dry, but as time passes, the surface of the ice beads begins to melt, resulting in a transition to wet beads milling. It was found that ice beads are an effective milling media for beads milling, and that milling efficiency is strongly affected by the temperature of the coolant, with the peak efficiency occurring when the temperature was set to -2 °C and ice beads around 1500 μm in diameter were used. The spray-dried powder obtained from suspension after ice beads milling had dissolution improvement equivalent to that obtained after zirconia beads milling, resulting from its spontaneous rapid dispersion into nanosuspension.
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Affiliation(s)
- Isao Funahashi
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya 468-8503, Japan
| | - Keita Kondo
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya 468-8503, Japan
| | - Yu Ito
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya 468-8503, Japan
| | - Mina Yamada
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya 468-8503, Japan
| | - Toshiyuki Niwa
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya 468-8503, Japan.
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Ma Z, Zhang H, Wang Y, Tang X. Development and evaluation of intramuscularly administered nano/microcrystal suspension. Expert Opin Drug Deliv 2019; 16:347-361. [PMID: 30827123 DOI: 10.1080/17425247.2019.1588248] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Formulation of nanocrystals is one of the most important drug delivery systems for poorly soluble drug molecules. Nanocrystals are produced by techniques like precipitation, media milling, high-pressure homogenization, and so on. In order to achieve sustained release and higher absorption of nanosuspensions, intramuscularly administered nanosuspensions have been developed. As well, intramuscularly administered nanosuspensions have been implemented in order to improve the bioavailability of drug nanocrystals which have both a low oral bioavailability and cannot be administered by intravenous injection routes. AREAS COVERED This review summarizes studies that have focused on the production, classification, in vitro release and in vivo pharmacokinetics of intramuscularly administered nanosuspensions. In order to avoid common drawbacks of intramuscularly administered nanosuspensions, such as tissue residues and some local tissue damage, nanosuspensions with a reduced administration volume of high drug loading and extended therapeutic effects are developed. EXPERT OPINION Intramuscularly administered nano/micro crystal suspensions have been developed for the treatment of various diseases such as schizophrenia, hormone disordered diseases, HIV and more. Additionally, intramuscularly administered nanosuspensions are also a good route for the development of traditional chinese medicines which have lower oral bioavailability and are not suitable for intravenous injection.
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Affiliation(s)
- Ziwei Ma
- a Department of Pharmaceutics , Shenyang Pharmaceutical University , Shenyang , China
| | - Hongjuan Zhang
- a Department of Pharmaceutics , Shenyang Pharmaceutical University , Shenyang , China
| | - Yanjiao Wang
- a Department of Pharmaceutics , Shenyang Pharmaceutical University , Shenyang , China
| | - Xing Tang
- a Department of Pharmaceutics , Shenyang Pharmaceutical University , Shenyang , China
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Lu Y, Lv Y, Li T. Hybrid drug nanocrystals. Adv Drug Deliv Rev 2019; 143:115-133. [PMID: 31254558 DOI: 10.1016/j.addr.2019.06.006] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 06/14/2019] [Accepted: 06/24/2019] [Indexed: 01/01/2023]
Abstract
Nanocrystals show promise to deliver poorly water-soluble drugs to yield systemic exposure. However, our knowledge regarding the in vivo fate of nanocrystals is in its infancy, as nanocrystallization is simply viewed as an approach to enhance the dissolution of drug crystals. The dying crystal phenomenon inspired the development of hybrid nanocrystals by physically embedding fluorophores into the crystal lattice. This approach achieved concurrent therapy and bioimaging and is well-established to study pharmacokinetics and nanocrystal dissolution in vivo. Nanocrystals also offer the advantage of long-term durability in the body for interacting with biological tissues and cells. This review introduces the hybrid nanocrystal technique, including the theoretical concepts, preparation, and applications. We also discuss the latest development in self-discriminative hybrid nanocrystals utilizing environment-responsive probes. This review will stimulate further development and application of nanocrystal-based drug delivery systems for theranostic strategies.
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Affiliation(s)
- Yi Lu
- Department of Industrial & Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA; Key Laboratory of Smart Drug Delivery of MOE, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yongjiu Lv
- Key Laboratory of Smart Drug Delivery of MOE, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Tonglei Li
- Department of Industrial & Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA.
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71
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Meruva S, Thool P, Shah S, Karki S, Bowen W, Ghosh I, Kumar S. Formulation and performance of Irbesartan nanocrystalline suspension and granulated or bead-layered dried powders - Part I. Int J Pharm 2019; 568:118189. [PMID: 30851385 DOI: 10.1016/j.ijpharm.2019.03.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 03/01/2019] [Accepted: 03/03/2019] [Indexed: 01/19/2023]
Abstract
Nanocrystalline suspensions offer a promising approach to improve the dissolution rate of BCS Class II/IV drugs and hence oral bioavailability. Irbesartan (crystalline Form B), a poorly soluble drug substance was chosen as a model compound for the study. The objectives of the study were to formulate Irbesartan nanocrystalline suspension via media milling, study the effects of process and formulation variables on particle size reduction, and evaluate bead layering or spray granulation as drying processes. A Design of Experiment approach was utilized to understand the impact of formulation variables on particle size reduction via media milling. Drug concentration and type of stabilizer were found to be significant in particle size reduction. Optimized Irbesartan nanocrystalline suspension (i.e. at 10% w/w with 1% w/w poloxamer 407) showed superior in vitro dissolution profile compared to unmilled suspension. Optimized Irbesartan nanocrystalline suspension was converted into dried powders either by bead layering (with microcrystalline cellulose) or by spray granulation (either with mannitol or microcrystalline cellulose). DSC and PXRD studies revealed that Irbesartan remained crystalline post drying. Microcrystalline cellulose beads layered with Irbesartan nanocrystals showed about 65% drug dissolution within the first 10 min of dissolution study. Mannitol granules containing Irbesartan nanocrystals were fast dissolving (i.e. >90% drug dissolution within 10 min) compared to microcrystalline cellulose granules (i.e. approx. 46% drug dissolution within 10 min). Irbesartan nanocrystalline suspension had the fastest dissolution rates (i.e. >90% drug dissolution in two minutes) followed by mannitol-based granules containing dried Irbesartan nanocrystals (i.e. >90% drug dissolution in ten minutes).
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Affiliation(s)
- Saikishore Meruva
- College of Pharmacy, University of Iowa, 115 S. Grand Avenue, Iowa City, IA 52242, USA
| | - Prajwal Thool
- Drug Product Development, Celgene, 556 Morris Avenue, Summit, NJ 07901, USA
| | - Shawreen Shah
- Drug Product Development, Celgene, 556 Morris Avenue, Summit, NJ 07901, USA
| | - Shyam Karki
- Drug Product Development, Celgene, 556 Morris Avenue, Summit, NJ 07901, USA
| | - William Bowen
- Drug Product Development, Celgene, 556 Morris Avenue, Summit, NJ 07901, USA
| | - Indrajit Ghosh
- Drug Product Development, Celgene, 556 Morris Avenue, Summit, NJ 07901, USA
| | - Sumit Kumar
- Drug Product Development, Celgene, 556 Morris Avenue, Summit, NJ 07901, USA.
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72
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Bhonsale SS, Telen D, Stokbroekx B, Van Impe J. Comparison of numerical solution strategies for population balance model of continuous cone mill. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.01.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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73
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Dehghan-Baniani D, Zahedifar P, Bagheri R, Solouk A. Curcumin-Loaded Starch Micro/Nano Particles for Biomedical Application: The Effects of Preparation Parameters on Release Profile. STARCH-STARKE 2019. [DOI: 10.1002/star.201800305] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dorsa Dehghan-Baniani
- Polymeric Materials Research Group (PMRG); Department of Materials Science and Engineering; Sharif University of Technology; Tehran P.O. Box 11155-9466 Iran
- Division of Biomedical Engineering; Department of Chemical and Biological Engineering; The Hong Kong University of Science and Technology; Hong Kong China
| | - Pegah Zahedifar
- Polymeric Materials Research Group (PMRG); Department of Materials Science and Engineering; Sharif University of Technology; Tehran P.O. Box 11155-9466 Iran
| | - Reza Bagheri
- Polymeric Materials Research Group (PMRG); Department of Materials Science and Engineering; Sharif University of Technology; Tehran P.O. Box 11155-9466 Iran
| | - Atefeh Solouk
- Biomedical Engineering Department; Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
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Talegaonkar S, Bhattacharyya A. Potential of Lipid Nanoparticles (SLNs and NLCs) in Enhancing Oral Bioavailability of Drugs with Poor Intestinal Permeability. AAPS PharmSciTech 2019; 20:121. [PMID: 30805893 DOI: 10.1208/s12249-019-1337-8] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 02/04/2019] [Indexed: 11/30/2022] Open
Abstract
Lipid-based drug delivery systems has become a popular choice for oral delivery of lipophilic drugs with dissolution rate limited oral absorption. Lipids are known to enhance oral bioavailability of poorly water-soluble drugs in multiple ways like facilitating dissolution as micellar solution, enhancing the lymphatic uptake and acting as inhibitors of efflux transporters. Lipid nanoparticles are matrix type lipid-based carrier systems which can effectively encapsulate both lipophilic and hydrophilic drugs. Lipid nanoparticles namely solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) are versatile drug delivery system and can be used for multiple routes of delivery like parenteral, topical, ocular, transdermal, and oral. Lipid nanoparticles are particularly attractive vehicles for peroral delivery of drugs with oral bioavailability problems as they are composed of lipid excipients which are cheap, easily available, and non-toxic; manufacturing technique is simple and readily scalable for large-scale production; the formulations provide controlled release of active components and have no stability issue. A large number of drugs have been incorporated into lipid nanoparticles with the objective of overcoming their poor oral bioavailability. This review tries to assess the potential of lipid nanoparticles for enhancing the oral bioavailability of drugs with permeability limited oral absorption such as drugs belonging to class IV of Biopharmaceutic Classification System (BCS) and protein and peptide drugs and also discusses the mechanism behind the bioavailability enhancement and safety issues related to such delivery systems.
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Sharma C, Desai MA, Patel SR. Effect of surfactants and polymers on morphology and particle size of telmisartan in ultrasound-assisted anti-solvent crystallization. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00720-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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76
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Chen L, He Z, Kunnath KT, Fan S, Wei Y, Ding X, Zheng K, Davé RN. Surface engineered excipients: III. Facilitating direct compaction tableting of binary blends containing fine cohesive poorly-compactable APIs. Int J Pharm 2019; 557:354-365. [DOI: 10.1016/j.ijpharm.2018.12.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 12/13/2018] [Accepted: 12/21/2018] [Indexed: 11/24/2022]
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77
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Salvatori F, Binel P, Mazzotti M. Efficient assessment of combined crystallization, milling, and dissolution cycles for crystal size and shape manipulation. CHEMICAL ENGINEERING SCIENCE: X 2019. [DOI: 10.1016/j.cesx.2018.100004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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78
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Farahmandghavi F, Imani M, Hajiesmaeelian F. Silicone matrices loaded with levonorgestrel particles: Impact of the particle size on drug release. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.10.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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79
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Regulatory Considerations for Cancer Drug Products Containing Nanomaterials. Bioanalysis 2019. [DOI: 10.1007/978-3-030-01775-0_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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80
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Ziaee A, Albadarin AB, Padrela L, Femmer T, O'Reilly E, Walker G. Spray drying of pharmaceuticals and biopharmaceuticals: Critical parameters and experimental process optimization approaches. Eur J Pharm Sci 2019; 127:300-318. [DOI: 10.1016/j.ejps.2018.10.026] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 10/01/2018] [Accepted: 10/30/2018] [Indexed: 10/27/2022]
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81
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Marine Nanopharmaceuticals for Drug Delivery and Targeting. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2019. [DOI: 10.1007/978-981-13-8855-2_10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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82
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State of the Art of Pharmaceutical Solid Forms: from Crystal Property Issues to Nanocrystals Formulation. ChemMedChem 2018; 14:8-23. [DOI: 10.1002/cmdc.201800612] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/09/2018] [Indexed: 12/11/2022]
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83
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Wan KY, Wong SN, Wong KW, Chow SF, Lum Chow AH. Interplay between Amphiphilic Stabilizers and Cholesterol in the Stabilization of Itraconazole Nanoparticles Prepared by Flash Nanoprecipitation. Mol Pharm 2018; 16:195-204. [DOI: 10.1021/acs.molpharmaceut.8b00945] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ka Yee Wan
- School of Pharmacy, The Chinese University of Hong Kong, Sha Tin, Hong Kong
| | - Si Nga Wong
- Department of Pharmacology and Pharmacy, The University of Hong Kong, Pokfulam, Hong Kong
| | - Ka Wai Wong
- Genvida (HK) Company Limited, Hong Kong, Hong Kong
| | - Shing Fung Chow
- Department of Pharmacology and Pharmacy, The University of Hong Kong, Pokfulam, Hong Kong
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84
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Impact of polymers on the aggregation of wet-milled itraconazole particles and their dissolution from spray-dried nanocomposites. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.09.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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85
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Poovi G, Damodharan N. Lipid nanoparticles: A challenging approach for oral delivery of BCS Class-II drugs. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2018. [DOI: 10.1016/j.fjps.2018.04.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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86
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Ghadipasha N, Romagnoli J, Tronci S, Baratti R. A model-based approach for controlling particle size distribution in combined cooling-antisolvent crystallization processes. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.06.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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87
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Impact of dispersants on dissolution of itraconazole from drug-loaded, surfactant-free, spray-dried nanocomposites. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.08.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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88
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Censi R, Gigliobianco MR, Casadidio C, Di Martino P. Changes in the Solid State of Nicergoline, a Poorly Soluble Drug, Under Different Grinding and Environmental Conditions: Effect on Polymorphism and Dissolution. J Pharm Sci 2018; 108:929-948. [PMID: 30300621 DOI: 10.1016/j.xphs.2018.09.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 09/25/2018] [Accepted: 09/28/2018] [Indexed: 10/28/2022]
Abstract
Nicergoline native crystals (Form I) were subjected to different grinding methods for 15, 30, 45, and 60 min: Method A, grinding at 20°C under air atmosphere; Method B, grinding in presence of liquid nitrogen under air atmosphere; Method C, grinding at 20°C under nitrogen atmosphere; and Method D, grinding in presence of liquid nitrogen under nitrogen atmosphere. Scanning electron microscopy, differential scanning calorimetry, X-ray powder diffractometry, thermogravimetry, and infrared spectroscopy were used to follow changes in the particle size and in crystalline structures. Batches from Methods A and C underwent partial amorphization immediately after grinding; Form II was obtained by heating these partially amorphous forms or after spontaneous crystallization after 1 and 5 months storage. Method B promoted the hydration of nicergoline to a monohydrate form. Batch D was stable under grinding and neither amorphization nor hydration were observed. The best intrinsic dissolution rate was that of metastable Form II, followed by Form I, while the worst was that of the Method B monohydrate form. The slowest particle dissolution was observed for hydrated particles, because of the lowest IDR, while the most rapid was exhibited by batch D, because of the very small particle size.
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Affiliation(s)
- Roberta Censi
- University of Camerino, School of Pharmacy, Via S. Agostino, Camerino, Italy
| | | | - Cristina Casadidio
- University of Camerino, School of Pharmacy, Via S. Agostino, Camerino, Italy
| | - Piera Di Martino
- University of Camerino, School of Pharmacy, Via S. Agostino, Camerino, Italy.
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Nanocrystals of Poorly Soluble Drugs: Drug Bioavailability and Physicochemical Stability. Pharmaceutics 2018; 10:pharmaceutics10030134. [PMID: 30134537 PMCID: PMC6161002 DOI: 10.3390/pharmaceutics10030134] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/13/2018] [Accepted: 08/18/2018] [Indexed: 11/16/2022] Open
Abstract
Many approaches have been developed over time to overcome the bioavailability limitations of poorly soluble drugs. With the advances in nanotechnology in recent decades, science and industry have been approaching this issue through the formulation of drugs as nanocrystals, which consist of “pure drugs and a minimum of surface active agents required for stabilization”. They are defined as “carrier-free submicron colloidal drug delivery systems with a mean particle size in the nanometer range, typically between 10–800 nm”. The primary importance of these nanoparticles was the reduction of particle size to nanoscale dimensions, with an increase in the particle surface area in contact with the dissolution medium, and thus in bioavailability. This approach has been proven successful, as demonstrated by the number of such drug products on the market. Nonetheless, despite the definition that indicates nanocrystals as a “carrier-free” system, surface active agents are necessary to prevent colloidal particles aggregation and thus improve stability. In addition, in more recent years, nanocrystal properties and technologies have attracted the interest of researchers as a means to obtain colloidal particles with modified biological properties, and thus their interest is now also addressed to modify the drug delivery and targeting. The present work provides an overview of the achievements in improving the bioavailability of poorly soluble drugs according to their administration route, describes the methods developed to overcome physicochemical and stability-related problems, and in particular reviews different stabilizers and surface agents that are able to modify the drug delivery and targeting.
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90
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Nakach M, Authelin JR, Perrin MA, Lakkireddy HR. Comparison of high pressure homogenization and stirred bead milling for the production of nano-crystalline suspensions. Int J Pharm 2018; 547:61-71. [DOI: 10.1016/j.ijpharm.2018.05.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 04/26/2018] [Accepted: 05/18/2018] [Indexed: 11/24/2022]
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91
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Peltonen L. Design Space and QbD Approach for Production of Drug Nanocrystals by Wet Media Milling Techniques. Pharmaceutics 2018; 10:E104. [PMID: 30044395 PMCID: PMC6161287 DOI: 10.3390/pharmaceutics10030104] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/04/2018] [Accepted: 07/19/2018] [Indexed: 12/24/2022] Open
Abstract
Drug nanocrystals are nanosized solid drug particles, the most important application of which is the improvement of solubility properties of poorly soluble drug materials. Drug nanocrystals can be produced by many different techniques, but the mostly used are different kinds of media milling techniques; in milling, particle size of bulk sized drug material is decreased, with the aid of milling beads, to nanometer scale. Utilization of Quality by Design, QbD, approach in nanomilling improves the process-understanding of the system, and recently, the number of studies using the QbD approach in nanomilling has increased. In the QbD approach, the quality is built into the products and processes throughout the whole production chain. Definition of Critical Quality Attributes, CQAs, determines the targeted final product properties. CQAs are confirmed by setting Critical Process Parameters, CPPs, which include both process parameters but also input variables, like stabilizer amount or the solid state form of the drug. Finally, Design Space determines the limits in which CPPs should be in order to reach CQAs. This review discusses the milling process and process variables, CPPs, their impact on product properties, CQAs and challenges of the QbD approach in nanomilling studies.
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Affiliation(s)
- Leena Peltonen
- Division of Pharmaceutical Chemistry and Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland.
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92
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Development and In Vitro Evaluation of a Zerumbone Loaded Nanosuspension Drug Delivery System. CRYSTALS 2018. [DOI: 10.3390/cryst8070286] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Zerumbone extracted from the volatile oil of rhizomes available from the Zinigiber zerumbet has promising pharmacological activity. However, it has poor aqueous solubility and dissolution characteristics. To improve this, a nanosuspension formulation of zerumbone was developed. Nanosuspensions were formulated using high-pressure homogenization (HPH) with sodium dodecyl sulphate (SDS) and hydroxypropylmethylcellulose (HPMC) as stabilizers; the formulation was optimized and freeze dried. The optimized nanosuspension product was evaluated using an optical light microscope, photon correlation spectroscopy (PCS), polydispersity index, zeta potential, SEM, differential scanning calorimetry (DSC) and FT-IR. The physical stability of the nanosuspensions was evaluated for 30 days at 4 °C, 25 °C, and 37 °C. To validate the theoretical benefit of the increased surface area, we determined an in vitro saturation solubility and dissolution profile. The mean particle size, polydispersity index and zeta potential of the zerumbone nanosuspensions stabilized by SDS versus HPMC were found to be 211 ± 27 nm vs. 398 ± 3.5 nm, 0.39 ± 0.06 vs. 0.55 ± 0.004, and −30.86 ± 2.3 mV vs. −3.37 ± 0.002 mV, respectively. The in vitro saturation solubility and dissolution revealed improved solubility for the zerumbone nanosuspension. These results suggested that the nanosuspensionlization improves the saturation solubility and dissolution profile of zerumbone, which may facilitate its use as a therapeutic agent in the future.
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93
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Bioavailability Enhancement of Poorly Water-Soluble Drugs via Nanocomposites: Formulation⁻Processing Aspects and Challenges. Pharmaceutics 2018; 10:pharmaceutics10030086. [PMID: 29986543 PMCID: PMC6160929 DOI: 10.3390/pharmaceutics10030086] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/01/2018] [Accepted: 07/01/2018] [Indexed: 11/16/2022] Open
Abstract
Drug nanoparticles embedded in a dispersant matrix as a secondary phase, i.e., drug-laden nanocomposites, offer a versatile delivery platform for enhancing the dissolution rate and bioavailability of poorly water-soluble drugs. Drug nanoparticles are prepared by top-down, bottom-up, or combinative approaches in the form of nanosuspensions, which are subsequently dried to prepare drug-laden nanocomposites. In this comprehensive review paper, the term “nanocomposites” is used in a broad context to cover drug nanoparticle-laden intermediate products in the form of powders, cakes, and extrudates, which can be incorporated into final oral solid dosages via standard pharmaceutical unit operations, as well as drug nanoparticle-laden strip films. The objective of this paper is to review studies from 2012⁻2017 in the field of drug-laden nanocomposites. After a brief overview of the various approaches used for preparing drug nanoparticles, the review covers drying processes and dispersant formulations used for the production of drug-laden nanocomposites, as well as various characterization methods including quiescent and agitated redispersion tests. Traditional dispersants such as soluble polymers, surfactants, other water-soluble dispersants, and water-insoluble dispersants, as well as novel dispersants such as wet-milled superdisintegrants, are covered. They exhibit various functionalities such as drug nanoparticle stabilization, mitigation of aggregation, formation of nanocomposite matrix⁻film, wettability enhancement, and matrix erosion/disintegration. Major challenges such as nanoparticle aggregation and poor redispersibility that cause inferior dissolution performance of the drug-laden nanocomposites are highlighted. Literature data are analyzed in terms of usage frequency of various drying processes and dispersant classes. We provide some engineering considerations in comparing drying processes, which could account for some of the diverging trends in academia vs. industrial practice. Overall, this review provides rationale and guidance for drying process selection and robust nanocomposite formulation development, with insights into the roles of various classes of dispersants.
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94
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Alsofany JM, Hamza MY, Abdelbary AA. Fabrication of Nanosuspension Directly Loaded Fast-Dissolving Films for Enhanced Oral Bioavailability of Olmesartan Medoxomil: In Vitro Characterization and Pharmacokinetic Evaluation in Healthy Human Volunteers. AAPS PharmSciTech 2018; 19:2118-2132. [PMID: 29700766 DOI: 10.1208/s12249-018-1015-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 04/07/2018] [Indexed: 11/30/2022] Open
Abstract
Olmesartan medoxomil (OM) is an antihypertensive drug with poor water solubility and low oral bioavailability (28.6%). Accordingly, this study aimed to formulate and evaluate OM nanosuspension incorporated into oral fast-dissolving films (FDFs) for bioavailability enhancement. OM nanosuspension was prepared by antisolvent-precipitation-ultrasonication method and characterized regarding particle size (122.67 ± 5.03 nm), span value (1.40 ± 0.51), and zeta potential (- 46.56 ± 1.20 mV). Transmission electron microscopy (TEM) of the nanosuspension showed spherical non-aggregating nanoparticles. The nanosuspension was then directly loaded into FDFs by solvent casting technique. A full factorial design (22 × 31) was implemented for optimization of the FDFs using Design-Expert® software. Physical and mechanical characteristics in addition to dissolution profiles of the FDFs were investigated. The optimum formula (FDF1) showed 0.43 ± 0.02 kg/mm2 tensile strength, 20.50 ± 2.12 s disintegration time, and 87.53 ± 2.50 and 95.99 ± 0.25% OM dissolved after 6 and 10 min, respectively. Accelerated and long-term shelf stability studies confirmed the stability of FDF1. More than 75% OM was dissolved within 10 min from FDF1 compared with 9.80 and 47.80% for films prepared using coarse drug powder and market tablet, respectively. Relative bioavailability of FDF1 compared to market tablet was assessed in healthy human volunteers. The Cmax value increased significantly from 66.62 ± 14.95 to 179.28 ± 23.96 ng/mL for market tablet and FDF1, respectively. Similarly, the AUC0-72 value significantly increased from 498.36 ± 217.46 to 1083.67 ± 246.32 ng h/mL for market tablet and FDF1, respectively. Relative bioavailability of FDF1 was 209.28%. The highlighted results verified the effectiveness of OM nanosuspension-loaded FDFs in improving OM bioavailability.
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95
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Sosnik A, Mühlebach S. Editorial: Drug Nanoparticles and Nano-Cocrystals: From Production and Characterization to Clinical Translation. Adv Drug Deliv Rev 2018; 131:1-2. [PMID: 30219177 DOI: 10.1016/j.addr.2018.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 04/13/2018] [Accepted: 04/14/2018] [Indexed: 10/28/2022]
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96
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Sverdlov Arzi R, Sosnik A. Electrohydrodynamic atomization and spray-drying for the production of pure drug nanocrystals and co-crystals. Adv Drug Deliv Rev 2018; 131:79-100. [PMID: 30031740 DOI: 10.1016/j.addr.2018.07.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/12/2018] [Accepted: 07/17/2018] [Indexed: 12/21/2022]
Abstract
In recent years, nanotechnology has offered attractive opportunities to overcome the (bio)pharmaceutical drawbacks of most drugs such as low aqueous solubility and bioavailability. Among the numerous methodologies that have been applied to improve drug performance, a special emphasis has been made on those that increase the dissolution rate and the saturation solubility by the reduction of the particle size of pure drugs to the nanoscale and the associated increase of the specific surface area. Different top-down and bottom-up methods have been implemented, each one with its own pros and cons. Over the last years, the latter that rely on the dissolution of the drug in a proper solvent and its crystallization or co-crystallization by precipitation in an anti-solvent or, conversely, by solvent evaporation have gained remarkable impulse owing to the ability to adjust features such as size, size distribution, morphology and to control the amorphous/crystalline nature of the product. In this framework, electrohydrodynamic atomization (also called electrospraying) and spray-drying excel due to their simplicity and potential scalability. Moreover, they do not necessarily require suspension stabilizers and dry products are often produced during the formation of the nanoparticles what ensures physicochemical stability for longer times than liquid products. This review overviews the potential of these two technologies for the production of pure drug nanocrystals and co-crystals and discusses the recent technological advances and challenges for their implementation in pharmaceutical research and development.
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97
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Solubility Improvement of Benexate through Salt Formation Using Artificial Sweetener. Pharmaceutics 2018; 10:pharmaceutics10020064. [PMID: 29861459 PMCID: PMC6027452 DOI: 10.3390/pharmaceutics10020064] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 05/23/2018] [Accepted: 05/24/2018] [Indexed: 11/26/2022] Open
Abstract
Benexate, a drug used clinically as a defensive type anti-ulcer agent, has poor solubility and a bitter taste. To improve its solubility, a crystal engineering approach was proposed with the formation of novel salts using an artificial sweetener as a salt co-former. This was also expected to address the bitter taste of the drug. In this work, we report on the preparation and evaluation of the physicochemical properties of the novel salts benexate saccharinate monohydrate and benexate cyclamate whose crystal structures were determined by single-crystal X-ray structure analysis. These novel salts showed higher solubility and faster dissolution profiles that were associated with the occurrence of local layered-like structures. They also showed better moisture uptake profiles and were classified as non-hygroscopic materials. Therefore, benexate saccharinate monohydrate and benexate cyclamate expedited the development of sweet pharmaceutical salts of benexate with improved performances.
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98
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De Paula WX, Denadai ÂML, Braga ANG, Shastri VP, Pinheiro SVB, Frezard F, Santos RAS, Sinisterra RD. A long-lasting oral preformulation of the angiotensin II AT1 receptor antagonist losartan. Drug Dev Ind Pharm 2018; 44:1498-1505. [PMID: 29683352 DOI: 10.1080/03639045.2018.1467923] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Losartan (Los), a non-peptidic orally active agent, reduces arterial pressure through specific and selective blockade of angiotensin II receptor AT1. However, this widely used AT1 antagonist presents low bioavailability and needs once or twice a day dosage. In order to improve its bioavailability, we used the host: guest strategy based on β-cyclodextrin (βCD). The results suggest that Los included in βCD showed a typical pulsatile release pattern after oral administration to rats, with increasing the levels of plasma of Los. In addition, the inclusion compound presented oral efficacy for 72 h, in contrast to Los alone, which shows antagonist effect for only 6 h. In transgenic (mREN2)L27 rats, the Los/βCD complex reduced blood pressure for about 6 d, whereas Los alone reduced blood pressure for only 2 d. More importantly, using this host: guest strategy, sustained release of Los for over a week via the oral route can be achieved without the need for encapsulation in a polymeric carrier. The proposed preformulation increased the efficacy reducing the dose or spacing between each dose intake.
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Affiliation(s)
- Washington X De Paula
- a Laboratório de Encapsulamento Molecular e Biomateriais (LEMB), Chemistry Department, Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Ângelo M L Denadai
- b Laboratório de Nanotecnologia dos Fluidos Complexos, Pharmacy Department, Universidade Federal de Juiz de Fora (UFJF) , Valadares , MG , Brazil
| | - Aline N G Braga
- c Biophysics and Physiology Department , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - V Prasad Shastri
- d Department of Chemistry , Pharmacy, and Earth Sciences, Institute for Macromolecular Chemistry and BIOSS Centre for Biological Signalling Studies, University of Freiburg , Freiburg , Germany
| | - Sérgio V B Pinheiro
- c Biophysics and Physiology Department , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Frederic Frezard
- c Biophysics and Physiology Department , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Robson A S Santos
- c Biophysics and Physiology Department , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Ruben D Sinisterra
- a Laboratório de Encapsulamento Molecular e Biomateriais (LEMB), Chemistry Department, Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
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99
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Pan R, Liu G, Li Y, Wei Y, Li S, Tao L. Size-dependent endocytosis and a dynamic-release model of nanoparticles. NANOSCALE 2018; 10:8269-8274. [PMID: 29687130 DOI: 10.1039/c8nr00830b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Polymeric nanoparticles for drug delivery are attracting broad interest along with the rapid development of biomedical and healthcare research. Here, we prepared a series of nanocapsules via electrostatic precipitation of chitosan and lecithin micelles. These nanocapsules have controlled diameters (∼25-200 nm) that only slightly changed after several lyophilization-dissolving cycles, suggesting their excellent stability for long-term storage. In cell experiments, these nanocapsules obviously reduced the cytotoxicity of encapsulated small molecules, and clearly showed size-dependent endocytosis. In a dynamic release model mimicking the in vivo circulatory system, the nanocapsules demonstrated superiority over micelles as drug carriers due to their stable structures. To the best of our knowledge, this is the first dynamic model used to evaluate the drug-release behaviour, which might provide a new way to study the release profile of other potential drug carriers.
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Affiliation(s)
- Ruihao Pan
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P.R. China.
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100
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Improved properties of fine active pharmaceutical ingredient powder blends and tablets at high drug loading via dry particle coating. Int J Pharm 2018; 543:288-299. [DOI: 10.1016/j.ijpharm.2018.04.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/25/2018] [Accepted: 04/02/2018] [Indexed: 11/20/2022]
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