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Alotaibi BS, Khan MA, Ullah K, Yasin H, Mannan A, Khan SA, Murtaza G. Formulation and characterization of glipizide solid dosage form with enhanced solubility. PLoS One 2024; 19:e0297467. [PMID: 38394326 PMCID: PMC10890718 DOI: 10.1371/journal.pone.0297467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 01/05/2024] [Indexed: 02/25/2024] Open
Abstract
Glipizide, a poor water-soluble drug belongs to BCS class II. The proposed work aimed to enhance the solubility of glipizide by preparing solid dispersions, using polyvinyl pyrrolidone (PVP) and polyethylene glycol (PEG). Solvent evaporation method was used for the preparation of glipizide solid dispersions. Solid dispersions were prepared in four different drug-to-polymer ratios i.e. 1:1, 1:2, 1:3 and 1:4. Mainly effect of three polymers (PVP K30, PVP K90 and PEG 6000) was evaluated on the solubility and dissolution of glipizide. The in-vitro dissolution of all prepared formulations was performed under pH 6.8 at 37°C using USP type II apparatus. In-vitro dissolution results revealed that the formulations having high concentrations of the polymer showed enhanced solubility. Enhancements in the solubility and rate of dissolution of the drug were noted in solid dispersion formulations compared to the physical blends and pure drug. Solid dispersions containing polyvinyl pyrrolidone exhibited a more favorable pattern of drug release compared to the corresponding solid dispersions with PEG. An increase in the maximum solubility of the drug within the solid dispersion systems was observed in all instances. Two solid dispersion formulations were optimized and formulated into immediate-release tablets, which passed all the pharmacopoeial and non-pharmacopoeial tests. Fourier transformed Infrared (FTIR) spectroscopy X-ray diffraction (XRD) and Differential scanning calorimetry (DSC) were used to indicate drug: polymer interactions in solid state. Analysis of the solid dispersion samples through characterization tests indicated the compatibility between the drug and the polymer.
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Affiliation(s)
- Badriyah Shadid Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Muhammad Ahsan Khan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Kaleem Ullah
- Faculty of Pharmacy, Hamdard University, Islamabad Campus, Pakistan
| | - Haya Yasin
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates
| | - Abdul Mannan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Shujaat Ali Khan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Ghulam Murtaza
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
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Han J, Tang M, Yang Y, Sun W, Yue Z, Zhang Y, Zhu Y, Liu X, Wang J. Amorphous solid dispersions: Stability mechanism, design strategy and key production technique of hot melt extrusion. Int J Pharm 2023; 646:123490. [PMID: 37805146 DOI: 10.1016/j.ijpharm.2023.123490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/02/2023] [Accepted: 10/04/2023] [Indexed: 10/09/2023]
Abstract
Solid dispersion (SD) system has been used as an effective formulation strategy to increase in vitro and in vivo performances of poorly water-soluble drugs, such as solubility/dissolution, stability and bioavailability. This review provides a comprehensive SD classification and identifies the most popular amorphous solid dispersions (ASDs). Meanwhile, this review further puts forward the systematic design strategy of satisfactory ASDs in terms of drug properties, carrier selection, preparation methods and stabilization mechanisms. In addition, hot melt extrusion (HME) as the continuous manufacturing technique is described including the principle and structure of HME instrument, key process parameters and production application, in order to guide the scale-up of ASDs and develop more ASD products to the market in pharmaceutical industry.
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Affiliation(s)
- Jiawei Han
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, PR China; Changzhou Pharmaceutical Factory Co., LTD, Changzhou 213018, PR China; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China
| | - Mengyuan Tang
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, PR China
| | - Yang Yang
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, PR China
| | - Wen Sun
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, PR China
| | - Zhimin Yue
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, PR China
| | - Yunran Zhang
- Changzhou Pharmaceutical Factory Co., LTD, Changzhou 213018, PR China
| | - Yijun Zhu
- Changzhou Pharmaceutical Factory Co., LTD, Changzhou 213018, PR China
| | - Xiaoqian Liu
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, PR China.
| | - Jue Wang
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, PR China; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China.
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3
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Yamanouchi K, Ishimaru T, Kakuno T, Takemoto Y, Kawatsu S, Kondo K, Maruyama M, Higaki K. Improvement and characterization of oral absorption behavior of clofazimine by SNEDDS: Quantitative evaluation of extensive lymphatic transport. Eur J Pharm Biopharm 2023; 187:141-155. [PMID: 37076052 DOI: 10.1016/j.ejpb.2023.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 04/21/2023]
Abstract
Clofazimine, an anti-leprosy drug, has been anticipated for a candidate to treat tuberculosis, cryptosporidiosis, and coronavirus infection, but its low oral bioavailability is considered a reason for its limited activity. In the current study, we have tried to improve the oral bioavailability of clofazimine by several SNEDDS formulations and characterized the absorption behavior from various aspects. Among four SNEDDS formulations prepared, SNEDDS A, prepared with castor oil as an oil component, provided the highest bioavailability (around 61%) and SNEDDS D, prepared with Capryol 90, gave the second highest bioavailability. SNEDDS A formed the finest nanoparticles, which were maintained under gastric and intestinal luminal conditions. The comparison in oral bioavailability between the SNEDDS formulation and its corresponding preformed nanoemulsion suggested that SNEDDS A would efficiently form nanoemulsion in the gastrointestinal tract after oral administration. AUC of mesenteric lymph node concentration was the highest for SNEDDS A, which would be one of the reasons for SNEDDS A to reveal the highest oral bioavailability. A cycloheximide-treated oral absorption study and single-pass perfusion study by utilizing a vascular-luminal perfused small intestine-liver preparation clearly indicated that over 90% of clofazimine absorbed to systemic circulation should be derived from lymphatic transport for both SNEDDS A and D. Furthermore, the fraction of dose absorbed was around 65% for SNEDDS D, but SNEDDS A achieved around 94%, indicating the excellent performance of SNEDDS A.
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Affiliation(s)
- Keita Yamanouchi
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan; Laboratory for Drug Discovery and Development, Shionogi & Co., Ltd. 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Tomoki Ishimaru
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan; Department of Drug Metabolism and Pharmacokinetics, Nonclinical Research Center, Tokushima Research Institute, Otsuka Pharmaceutical Co., Ltd., 463-10 Kagasuno, Kawauchi-cho, Tokushima 771-0192, Japan
| | - Takuya Kakuno
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan; Pharmaceutical Research Laboratories, Pharmaceutical Department, Nipro Co. 3023 Noji-cho, Kusatsu, Shiga 525-0055, Japan
| | - Yuki Takemoto
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Sho Kawatsu
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan; Formulation Design, Pharmaceutical Research and Technology Laboratories, Pharmaceutical Technology, Astellas Pharma Inc. 180 Ozumi, Yaizu, Shizuoka 425-0072, Japan
| | - Keiji Kondo
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan; Preformulation Research Laboratory, CMC Headquarters, Otsuka Pharmaceutical Co., Ltd. 224-18 Hiraishi Ebisuno, Kawauchi-cho, Tokushima 771-0182, Japan
| | - Masato Maruyama
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Kazutaka Higaki
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.
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Clofazimine Inhalation Suspension Demonstrates Promising Toxicokinetics in Canines for Treating Pulmonary Nontuberculous Mycobacteria Infection. Antimicrob Agents Chemother 2023; 67:e0114422. [PMID: 36648233 PMCID: PMC9933692 DOI: 10.1128/aac.01144-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Pulmonary nontuberculous mycobacteria (NTM) infection is recognized as a major global health concern due to its rising prevalence worldwide. As an opportunistic pathogen with increasing antibiotics resistance, prolonged systemic dosing with multiple antibiotics remains the primary treatment paradigm. These prolonged treatments, administered predominantly by oral or parenteral routes, often lead to systemic toxicity. A novel inhaled formulation of clofazimine may finally resolve issues of toxicity, thereby providing for improved NTM therapy. Clofazimine inhalation suspension was evaluated in canines to determine toxicity over 28 days of once-a-day dosing. The good laboratory practice (GLP) repeat dosing study evaluated low, mid, and high dosing (2.72 mg/kg and 2.95 mg/kg; 5.45 mg/kg and 5.91 mg/kg; and 10.87 mg/kg and 10.07 mg/kg, average male versus female dosing) of nebulized clofazimine over 30, 60, and 120 min using a jet nebulizer. Toxicokinetic analyses were performed on study days 29, 56, and 84. All three dose levels showed significant residual drug in lung tissue, demonstrating impressive lung loading and long lung residence. Drug concentrations in the lung remained well above the average NTM MIC at all time points, with measurable clofazimine levels at 28 and 56 days postdosing. In contrast, plasma levels of clofazimine were consistently measurable only through 14 days postdosing, with measurements below the limit of quantitation at 56 days postdosing. Clofazimine inhalation suspension may provide an effective therapy for the treatment of NTM infections through direct delivery of antibiotic to the lungs, overcoming the systemic toxicity seen in oral clofazimine treatment for NTM.
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Khan NF, Salim M, Binte Abu Bakar SY, Ristroph K, Prud'homme RK, Hawley A, Boyd BJ, Clulow AJ. Small-volume in vitro lipid digestion measurements for assessing drug dissolution in lipid-based formulations using SAXS. Int J Pharm X 2022; 4:100113. [PMID: 35243327 PMCID: PMC8881665 DOI: 10.1016/j.ijpx.2022.100113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 01/31/2022] [Indexed: 11/30/2022] Open
Abstract
Lipid-based formulations improve the absorption capacity of poorly-water-soluble drugs and digestion of the formulation is a critical step in that absorption process. A recent approach to understanding the propensity for drug to dissolve in digesting lipid-based formulations couples an in vitro pH-stat lipolysis model to small-angle X-ray scattering (SAXS) by means of a flow-through capillary. However, the conventional pH-stat apparatus used to measure the extent of lipid digestion during such experiments requires digest volumes of 15–30 mL and drug doses of 50–200 mg, which is problematic for scarce compounds and can require excessive amounts of formulation reagents. This manuscript describes an approach to reduce the amount of material required for in vitro lipolysis experiments coupled to SAXS, for use in instances where the amount of drug or formulation medium is limited. Importantly, this was achieved while maintaining the pH stat conditions, which is critical for maintaining biorelevance and driving digestion to completion. The digestibility of infant formula with the poorly-water-soluble drugs halofantrine and clofazimine dispersed into it was measured as an exemplar paediatric-friendly lipid formulation. Halofantrine was incorporated in its powdered free base form and clofazimine was incorporated both as unformulated drug powder and as drug in nanoparticulate form prepared using Flash NanoPrecipitation. The fraction of triglyceride digested was found to be independent of vessel size and the incorporation of drug. The dissolution of the two forms of clofazimine during the digestion of infant formula were then measured using synchrotron SAXS, which revealed complete and partial solubilisation over 30 min of digestion for the powdered drug and nanoparticle formulations, respectively. The main challenge in reducing the volume of the measurements was in ensuring that thorough mixing was occurring in the smaller digestion vessel to provide uniform sampling of the dispersion medium.
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Yadav M, Sarolia J, Vyas B, Lalan M, Mangrulkar S, Shah P. Amalgamation of Solid Dispersion and Melt Adsorption Technique: Improved In Vitro and In Vivo Performance of Ticagrelor Tablets. AAPS PharmSciTech 2021; 22:257. [PMID: 34676463 DOI: 10.1208/s12249-021-02138-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 09/07/2021] [Indexed: 12/23/2022] Open
Abstract
Ticagrelor (TG) suffers from low peroral bioabsorption (36%) due to P-gp efflux and poor solubility (10 µg/mL). TG solid dispersion adsorbates (TG-SDAs) were formulated using an amalgamation of solid dispersion and melt adsorption techniques which were simple, economic, scalable, and solvent-free. FTIR indicated no incompatibility between drug and excipients. DSC, XRD, and SEM suggested a reduction in TG crystallinity. Q30min from TG-SUSP and TG-conventional tablets was only 2.30% and 6.59% respectively whereas TG-SDA-based tablets exhibited a significantly higher drug release of 86.47%. Caco-2 permeability studies showed 3.83-fold higher permeability of TG from TG-SDAs. TG-SDA-based tablets exhibited relative bioavailability of 748.53% and 153.43% compared to TG-SUSP and TG-conventional tablets respectively in rats. TG-SDA-based tablets were devoid of any cytotoxicity as indicated by MTT assay and exhibited better antiplatelet activity in rats. Enhanced oral bioavailability of TG-SDAs can be attributed to inhibition of P-gp efflux by PEG 4000, increased wettability, and reduced crystallinity of drug leading to improved drug solubility and dissolution. Improved bioabsorption results in a reduction of dose, cost of therapy as well as dose-related side effects. Thus, SDAs can be considered a promising and scalable approach for the improvement of dissolution rate and solubility of TG. TG-SDAs can be translated to an effective and safe dosage form, whereby its rapid onset of action promotes the prevention of heart attack, stroke, and related ill events in individuals with the acute coronary syndrome. However, scale-up, validation, and clinical-studies are necessary for confirmation of the proof-of-concept.
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Bodart L, Derlet A, Buol X, Leyssens T, Tumanov N, Wouters J. Combining Two Antitubercular Drugs, Clofazimine and 4-Aminosalicylic Acid, in Order to Improve Clofazimine Aqueous Solubility and 4-Aminosalicylic Acid Thermal Stability. J Pharm Sci 2020; 109:3645-3652. [PMID: 32976899 DOI: 10.1016/j.xphs.2020.09.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/28/2020] [Accepted: 09/17/2020] [Indexed: 10/23/2022]
Abstract
Four forms of a salt combining two antitubercular drugs, clofazimine and 4-aminosalicylic acid, are reported and the crystal structure of two of these forms are described. TG/DSC analysis of all four forms demonstrate an increase in the temperature at which degradation (upon decarboxylation) occurs in comparison to pure 4-aminosalicylic acid. Water solubility evaluation indicates a significant increase of the amount of clofazimine detected in water (10.26 ± 0.52 μg/mL for form I, 12.27 ± 0.32 μg/mL for form II, 7.15 ± 0.43 μg/mL for form III and 8.50 ± 1.24 μg/mL for form IV) in comparison to pure clofazimine (0.20 ± 0.03 μg/mL).
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Affiliation(s)
- Laurie Bodart
- Namur Medicine and Drug Innovation Center - Namur Research Institute for LIfe Science (NAMEDIC-NARILIS), Namur Institute of Structured Matter (NISM), Department of Chemistry, University of Namur (UNamur), 61 Rue de Bruxelles, 5000 Namur, Belgium.
| | - Amélie Derlet
- Namur Medicine and Drug Innovation Center - Namur Research Institute for LIfe Science (NAMEDIC-NARILIS), Namur Institute of Structured Matter (NISM), Department of Chemistry, University of Namur (UNamur), 61 Rue de Bruxelles, 5000 Namur, Belgium
| | - Xavier Buol
- Institute of Condensed Matter and Nanosciences, UCLouvain, 1 Place Louis Pasteur, B-1348 Louvain-la-Neuve, Belgium
| | - Tom Leyssens
- Institute of Condensed Matter and Nanosciences, UCLouvain, 1 Place Louis Pasteur, B-1348 Louvain-la-Neuve, Belgium
| | - Nikolay Tumanov
- Namur Medicine and Drug Innovation Center - Namur Research Institute for LIfe Science (NAMEDIC-NARILIS), Namur Institute of Structured Matter (NISM), Department of Chemistry, University of Namur (UNamur), 61 Rue de Bruxelles, 5000 Namur, Belgium
| | - Johan Wouters
- Namur Medicine and Drug Innovation Center - Namur Research Institute for LIfe Science (NAMEDIC-NARILIS), Namur Institute of Structured Matter (NISM), Department of Chemistry, University of Namur (UNamur), 61 Rue de Bruxelles, 5000 Namur, Belgium.
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9
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Application of Simple Lattice Design and Desirability Function for Formulating and Optimizing SMEDDS of Clofazimine. J Pharm Innov 2020. [DOI: 10.1007/s12247-020-09468-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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10
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Bodart L, Tumanov N, Wouters J. Structural variety of clofaziminium salts: effect of the counter-ion on clofaziminium conformation and crystal packing. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS 2019; 75:674-686. [DOI: 10.1107/s2052520619007649] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 05/26/2019] [Indexed: 11/11/2022]
Abstract
Clofazimine is a water-insoluble antimycobacterial agent gaining attention as a treatment for multi-drug resistant and extensively drug-resistant tuberculosis. Novel salts of clofazimine are reported with fumaric, succinic, 2,4-dihydroxybenzoic and terephthalic acids and with saccharin. The salt structures were obtained by single-crystal X-ray diffraction. The salts with 2,4-dihydroxybenzoic acid and with saccharin are solvated (methanol and acetonitrile, respectively). The reaction of clofazimine with terephthalic acid led to two salt cocrystals, one solvated and one non-solvated. These new clofaziminium salts are compared with the currently known ones in terms of crystal packing and clofazimine/ium conformation. Clofaziminium hydrogen succinate presents isostructurality with clofaziminium hydrogen malonate, an already described salt. In the structure of clofaziminium terephthalate terephthalic acid salt cocrystal, solvent evaporation leads to packing and hydrogen-bonding modifications. In all the new structures, the clofaziminium conformation is quite well conserved and steric hindrance is observed around the protonated site. Conformational optimization of clofaziminium reveals that this steric-hindrance energy penalty is compensated for by hydrogen-bond interactions with the salt counter-ions.
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Feng J, Zhang Y, McManus SA, Ristroph KD, Lu HD, Gong K, White CE, Prud’homme RK. Rapid Recovery of Clofazimine-Loaded Nanoparticles with Long-Term Storage Stability as Anti- Cryptosporidium Therapy. ACS APPLIED NANO MATERIALS 2018; 1:2184-2194. [PMID: 29911689 PMCID: PMC5999231 DOI: 10.1021/acsanm.8b00234] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 04/20/2018] [Indexed: 05/16/2023]
Abstract
While the formulation of nanoparticle (NP) suspensions has been widely applied in materials and life science, the recovery of NPs from such a suspension into a solid state is practically important to confer long-term storage stability. However, solidification, while preserving the original nanoscale properties, remains a formidable challenge in the pharmaceutical and biomedical applications of NPs. Herein we combined flash nanoprecipitation (FNP) and spray-drying as a nanofabrication platform for NP formulation and recovery without compromising the dissolution kinetics of the active ingredient. Clofazimine was chosen to be the representative drug, which has been recently repurposed as a potential treatment for cryptosporidiosis. Clofazimine was encapsulated in NPs with low-cost surface coatings, hypromellose acetate succinate (HPMCAS) and lecithin, which were required by the ultimate application to global health. Spray-drying and lyophilization were utilized to produce dried powders with good long-term storage stability for application in hot and humid climatic zones. The particle morphology, yield efficiency, drug loading, and clofazimine crystallinity in the spray-dried powders were characterized. The in vitro release kinetics of spray-dried NP powders were compared to analogous dissolution profiles from standard lyophilized NP samples, crystalline clofazimine powder, and the commercially available formulation Lamprene. The spray-dried powders showed a supersaturation level of up to 60 times the equilibrium solubility and remarkably improved dissolution rates. In addition, the spray-dried powders with both surface coatings showed excellent stability during aging studies with elevated temperature and humidity, in view of the dissolution and release in vitro. Considering oral delivery for pediatric administration, the spray-dried powders show less staining effects with simulated skin than crystalline clofazimine and may be made into minitablets without additional excipients. These results highlight the potential of combining FNP and spray-drying as a feasible and versatile platform to design and rapidly recover amorphous NPs in a solid dosage form, with the advantages of satisfactory long-term storage stability, low cost, and easy scalability.
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Affiliation(s)
- Jie Feng
- Department
of Chemical and Biological Engineering, Department of Civil and Environmental
Engineering, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
| | - Yingyue Zhang
- Department
of Chemical and Biological Engineering, Department of Civil and Environmental
Engineering, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
| | - Simon A. McManus
- Department
of Chemical and Biological Engineering, Department of Civil and Environmental
Engineering, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
| | - Kurt D. Ristroph
- Department
of Chemical and Biological Engineering, Department of Civil and Environmental
Engineering, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
| | - Hoang D. Lu
- Department
of Chemical and Biological Engineering, Department of Civil and Environmental
Engineering, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
| | - Kai Gong
- Department
of Chemical and Biological Engineering, Department of Civil and Environmental
Engineering, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
| | - Claire E. White
- Department
of Chemical and Biological Engineering, Department of Civil and Environmental
Engineering, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
| | - Robert K. Prud’homme
- Department
of Chemical and Biological Engineering, Department of Civil and Environmental
Engineering, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
- E-mail:
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12
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Bannigan P, Durack E, Madden C, Lusi M, Hudson SP. Role of Biorelevant Dissolution Media in the Selection of Optimal Salt Forms of Oral Drugs: Maximizing the Gastrointestinal Solubility and in Vitro Activity of the Antimicrobial Molecule, Clofazimine. ACS OMEGA 2017; 2:8969-8981. [PMID: 30023597 PMCID: PMC6045360 DOI: 10.1021/acsomega.7b01454] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/29/2017] [Indexed: 06/08/2023]
Abstract
Clofazimine is an antimycobacterial agent that is routinely used for the treatment of leprosy. Clofazimine has also been shown to have high clinical potential for the treatment of many Gram-positive pathogens, including those that exhibit high levels of antibiotic resistance in the medical community. The use of clofazimine against these pathogens has largely been limited by the inherently poor water solubility of the drug substance. In this work, the possibility of repurposing and reformulating clofazimine to maximize its clinical potential is investigated. To achieve this, the potential of novel salt forms of clofazimine as supersaturating drug-delivery vehicles to enhance the aqueous solubility and gastrointestinal solubility of the drug substance was explored. The solution properties of seven novel salt forms, identified during an initial screening process, were examined in water and in a gastrointestinal-like media and were compared and contrasted with those of the free base, clofazimine, and the commercial formulation of the drug, Lamprene. The stability of the most promising solid forms was tested, and their bioactivity against Staphylococcus aureus was also compared with that of the clofazimine free base and Lamprene. Salts forms which showed superior stability as well as solubility and activity to the commercial drug formulation were fully characterized using a combination of spectroscopic techniques, including X-ray diffraction, solid-state NMR, and Fourier transform infrared spectroscopy.
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Affiliation(s)
- Pauric Bannigan
- Department
of Chemical Sciences and Synthesis and Solid State Pharmaceutical
Centre, Bernal Institute, University of
Limerick, Castletroy, Limerick V94 T9PX, Ireland
| | - Edel Durack
- Department
of Chemical Sciences and Synthesis and Solid State Pharmaceutical
Centre, Bernal Institute, University of
Limerick, Castletroy, Limerick V94 T9PX, Ireland
| | - Conor Madden
- Department
of Chemical Sciences and Synthesis and Solid State Pharmaceutical
Centre, Bernal Institute, University of
Limerick, Castletroy, Limerick V94 T9PX, Ireland
| | - Matteo Lusi
- Department
of Chemical Sciences and Synthesis and Solid State Pharmaceutical
Centre, Bernal Institute, University of
Limerick, Castletroy, Limerick V94 T9PX, Ireland
| | - Sarah P. Hudson
- Department
of Chemical Sciences and Synthesis and Solid State Pharmaceutical
Centre, Bernal Institute, University of
Limerick, Castletroy, Limerick V94 T9PX, Ireland
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13
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Brunaugh AD, Jan SU, Ferrati S, Smyth HDC. Excipient-Free Pulmonary Delivery and Macrophage Targeting of Clofazimine via Air Jet Micronization. Mol Pharm 2017; 14:4019-4031. [PMID: 29047275 DOI: 10.1021/acs.molpharmaceut.7b00690] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ashlee D. Brunaugh
- College of Pharmacy, The University of Texas at Austin, 2409 West University Avenue, PHR 4.214, Austin, Texas 78712, United States
| | - Syed Umer Jan
- College of Pharmacy, The University of Texas at Austin, 2409 West University Avenue, PHR 4.214, Austin, Texas 78712, United States
| | - Silvia Ferrati
- College of Pharmacy, The University of Texas at Austin, 2409 West University Avenue, PHR 4.214, Austin, Texas 78712, United States
| | - Hugh D. C. Smyth
- College of Pharmacy, The University of Texas at Austin, 2409 West University Avenue, PHR 4.214, Austin, Texas 78712, United States
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14
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Zhang Y, Feng J, McManus SA, Lu HD, Ristroph KD, Cho EJ, Dobrijevic EL, Chan HK, Prud’homme RK. Design and Solidification of Fast-Releasing Clofazimine Nanoparticles for Treatment of Cryptosporidiosis. Mol Pharm 2017; 14:3480-3488. [PMID: 28929769 PMCID: PMC5627342 DOI: 10.1021/acs.molpharmaceut.7b00521] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/03/2017] [Accepted: 08/09/2017] [Indexed: 11/28/2022]
Abstract
Clofazimine, a lipophilic (log P = 7.66) riminophenazine antibiotic approved by the US Food and Drug Administration (FDA) with a good safety record, was recently identified as a lead hit for cryptosporidiosis through a high-throughput phenotypic screen. Cryptosporidiosis requires fast-acting treatment as it leads to severe symptoms which, if untreated, result in morbidity for infants and small children. Consequently, a fast-releasing oral formulation of clofazimine in a water-dispersible form for pediatric administration is highly desirable. In this work, clofazimine nanoparticles were prepared with three surface stabilizers, hypromellose acetate succinate (HPMCAS), lecithin, and zein, using the flash nanoprecipitation (FNP) process. Drug encapsulation efficiencies of over 92% were achieved. Lyophilization and spray-drying were applied and optimized to produce redispersible nanoparticle powders. The release kinetics of these clofazimine nanoparticle powders in biorelevant media were measured and compared with those of crystalline clofazimine and the currently marketed formulation Lamprene. Remarkably improved dissolution rates and clofazimine supersaturation levels up to 90 times equilibrium solubility were observed with all clofazimine nanoparticles tested. Differential scanning calorimetry indicated a reduction of crystallinity of clofazimine in nanoparticles. These results strongly suggest that the new clofazimine nanoparticles prepared with affordable materials in this low-cost nanoparticle formulation process can be used as viable cryptosporidiosis therapeutics.
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Affiliation(s)
- Yingyue Zhang
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08854, United States
| | - Jie Feng
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08854, United States
| | - Simon A. McManus
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08854, United States
| | - Hoang D. Lu
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08854, United States
| | - Kurt D. Ristroph
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08854, United States
| | - Eugene J. Cho
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08854, United States
| | - Ellen L. Dobrijevic
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08854, United States
| | - Hak-Kim Chan
- School
of Pharmacy, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Robert K. Prud’homme
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08854, United States
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15
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Narang AS, Balakrishnan A, Morrison J, Li J, Wang J, Gu H, Taylor K, Santone K, Ehrmann J, Beyer S, Lu X, Ketner R, Pizzano J, Orcutt T, Shields E, Dulac H, Aborn S, Batchelder M, Lentz K. Role of regional absorption and gastrointestinal motility on variability in oral absorption of a model drug. Eur J Pharm Biopharm 2017; 117:333-345. [DOI: 10.1016/j.ejpb.2017.04.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/21/2017] [Accepted: 04/24/2017] [Indexed: 12/01/2022]
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16
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Effect of different polymeric dispersions on In-vitro dissolution rate and stability of celecoxib class II drug. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1215-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Nie H, Su Y, Zhang M, Song Y, Leone A, Taylor LS, Marsac PJ, Li T, Byrn SR. Solid-State Spectroscopic Investigation of Molecular Interactions between Clofazimine and Hypromellose Phthalate in Amorphous Solid Dispersions. Mol Pharm 2016; 13:3964-3975. [PMID: 27653759 DOI: 10.1021/acs.molpharmaceut.6b00740] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Haichen Nie
- Department
of Industrial and Physical Pharmacy, Purdue University, 575 Stadium
Mall Drive, West Lafayette, Indiana 47907, United States
- Formulation
Sciences, Teva Pharmaceuticals, 145 Brandywine Parkway, West Chester, Pennsylvania 19380, United States
| | - Yongchao Su
- Merck Research Laboratories, 770 Sumneytown Pike, West
Point, Pennsylvania 19486, United States
| | - Mingtao Zhang
- Department
of Industrial and Physical Pharmacy, Purdue University, 575 Stadium
Mall Drive, West Lafayette, Indiana 47907, United States
| | - Yang Song
- Department
of Industrial and Physical Pharmacy, Purdue University, 575 Stadium
Mall Drive, West Lafayette, Indiana 47907, United States
- Global
DMPK, Takeda Pharmaceutical Inc., 10410 Science Center Drive, San Diego, California 92121, United States
| | - Anthony Leone
- Merck Research Laboratories, 770 Sumneytown Pike, West
Point, Pennsylvania 19486, United States
| | - Lynne S. Taylor
- Department
of Industrial and Physical Pharmacy, Purdue University, 575 Stadium
Mall Drive, West Lafayette, Indiana 47907, United States
| | - Patrick J. Marsac
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536, United States
| | - Tonglei Li
- Department
of Industrial and Physical Pharmacy, Purdue University, 575 Stadium
Mall Drive, West Lafayette, Indiana 47907, United States
| | - Stephen R. Byrn
- Department
of Industrial and Physical Pharmacy, Purdue University, 575 Stadium
Mall Drive, West Lafayette, Indiana 47907, United States
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18
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Li S, Chan JYW, Li Y, Bardelang D, Zheng J, Yew WW, Chan DPC, Lee SMY, Wang R. Complexation of clofazimine by macrocyclic cucurbit[7]uril reduced its cardiotoxicity without affecting the antimycobacterial efficacy. Org Biomol Chem 2016; 14:7563-9. [PMID: 27439674 DOI: 10.1039/c6ob01060a] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cucurbit[7]uril (CB[7]) has recently attracted increasing attention in pharmaceutical sciences due to its great potential in improving the physicochemical properties and bioactivity of drug molecules. Herein, we have investigated the influence of CB[7]'s complexation on the solubility, antimycobacterial activity, and cardiotoxicity of a model anti-tuberculosis drug, clofazimine (CFZ), that has poor water-solubility and inherent cardiotoxicity. In our study, CFZ was found to be complexed by CB[7], in a 1 : 1 binding mode with a relatively strong binding affinity (in the order of magnitude of 10(4)-10(5) M(-1)), as determined by the phase solubility method via HPLC-UV analysis and (1)H NMR titration, as well as UV-visible spectroscopic titration, and further confirmed by electrospray ionization mass spectrometry (ESI-MS). Upon complexation, the solubility of virtually insoluble CFZ was significantly increased, reaching a concentration of up to approximately 0.53-fold of the maximum solubility of CB[7]. The inherent cardiotoxicity of CFZ was dramatically reduced to almost nil in the presence of CB[7]. Importantly, on the other hand, such a supramolecular complexation of the drug did not compromise its therapeutic efficacy, as shown by the antimycobacterial activities examined against Mycobacterium smegmatis, demonstrating the significant potential of CB[7] as a functional pharmaceutical excipient.
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Affiliation(s)
- Shengke Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China.
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19
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Omwoyo WN, Melariri P, Gathirwa JW, Oloo F, Mahanga GM, Kalombo L, Ogutu B, Swai H. Development, characterization and antimalarial efficacy of dihydroartemisinin loaded solid lipid nanoparticles. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 12:801-809. [PMID: 26724538 DOI: 10.1016/j.nano.2015.11.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 11/17/2015] [Accepted: 11/19/2015] [Indexed: 11/28/2022]
Abstract
UNLABELLED Effective use of dihydroartemisinin (DHA) is limited by poor water-solubility, poor pharmacokinetic profile and unsatisfactory clinical outcome especially in monotherapy. To reduce such limitations, we reformulated DHA into solid lipid nanoparticles (SLNs) as a nanomedicine drug delivery system. DHA-SLNs were characterized for physical parameters and evaluated for in vitro and in vivo antimalarial efficacy. DHA-SLNs showed desirable particle characteristics including particle size (240.7 nm), particle surface charge (+17.0 mV), drug loadings (13.9 wt %), encapsulation efficacy (62.3%), polydispersity index (0.16) and a spherical appearance. Storage stability up to 90 days and sustained release of drug over 20 h was achieved. Enhanced in vitro (IC50 0.25 ng/ml) and in vivo (97.24% chemosuppression at 2mg/kg/day) antimalarial activity was observed. Enhancement in efficacy was 24% when compared to free DHA. These encouraging results show potential of using the described formulation for DHA drug delivery for clinical application. FROM THE CLINICAL EDITOR Malaria still poses a significant problem worldwide. One of the current drugs, artemisinin has been shown to be effective, but has poor water-solubility. The authors here described their formulation of making dihydroartemisinin (DHA) into solid lipid nanoparticles, with subsequent enhancement in efficacy. These results would have massive potential in the clinical setting.
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Affiliation(s)
- Wesley N Omwoyo
- Department of Chemistry, Maasai Mara University, Narok, Kenya; Department of Chemistry, Jaramogi Oginga Odinga University of Science and Technology Bondo, Kenya
| | - Paula Melariri
- Department of Polymers and Composites, Council for Scientific and Industrial Research, Pretoria, South Africa
| | - Jeremiah W Gathirwa
- Kenya Medical Research Institute, Nairobi, Kenya; Center for Research in Therapeutic Sciences, Strathmore University, Nairobi, Kenya.
| | - Florence Oloo
- Center for Research in Therapeutic Sciences, Strathmore University, Nairobi, Kenya; Department of Chemical Science and Technology, Technical University of Kenya, Nairobi, Kenya
| | - Geoffrey M Mahanga
- Department of Chemistry, Jaramogi Oginga Odinga University of Science and Technology Bondo, Kenya
| | - Lonji Kalombo
- Department of Polymers and Composites, Council for Scientific and Industrial Research, Pretoria, South Africa
| | - Bernhards Ogutu
- Kenya Medical Research Institute, Nairobi, Kenya; Center for Research in Therapeutic Sciences, Strathmore University, Nairobi, Kenya
| | - Hulda Swai
- Department of Polymers and Composites, Council for Scientific and Industrial Research, Pretoria, South Africa
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20
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Nie H, Mo H, Zhang M, Song Y, Fang K, Taylor LS, Li T, Byrn SR. Investigating the Interaction Pattern and Structural Elements of a Drug–Polymer Complex at the Molecular Level. Mol Pharm 2015; 12:2459-68. [PMID: 25988812 DOI: 10.1021/acs.molpharmaceut.5b00162] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haichen Nie
- Department of Industrial and Physical Pharmacy and ‡Department of Medicinal Chemistry
and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Huaping Mo
- Department of Industrial and Physical Pharmacy and ‡Department of Medicinal Chemistry
and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Mingtao Zhang
- Department of Industrial and Physical Pharmacy and ‡Department of Medicinal Chemistry
and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Yang Song
- Department of Industrial and Physical Pharmacy and ‡Department of Medicinal Chemistry
and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Ke Fang
- Department of Industrial and Physical Pharmacy and ‡Department of Medicinal Chemistry
and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Lynne S. Taylor
- Department of Industrial and Physical Pharmacy and ‡Department of Medicinal Chemistry
and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Tonglei Li
- Department of Industrial and Physical Pharmacy and ‡Department of Medicinal Chemistry
and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Stephen R. Byrn
- Department of Industrial and Physical Pharmacy and ‡Department of Medicinal Chemistry
and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
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21
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Preparation, characterization and in vitro/vivo evaluation of tectorigenin solid dispersion with improved dissolution and bioavailability. Eur J Drug Metab Pharmacokinet 2015; 41:413-22. [DOI: 10.1007/s13318-015-0265-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 02/02/2015] [Indexed: 12/18/2022]
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22
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Zhang D, Templeton AC, Marinaro W, Rumondor ACF, Kesisoglou F, Duersch B, Thompson K, Stellabott J, Kress MH. Leveraging Solid State Form and Physiochemical Properties for Early Clinical Formulation Efforts: Opportunities and Challenges During Telcagepant Liquid Capsule Development. DISCOVERING AND DEVELOPING MOLECULES WITH OPTIMAL DRUG-LIKE PROPERTIES 2015. [DOI: 10.1007/978-1-4939-1399-2_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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23
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Alam BM, Aouak T, Alandis NM, Alam MM. Synthesis, Characterization, Drug Solubility Enhancement, and Drug Release Study of Poly(Methacrylic Acid-graft-Simvastatin). INT J POLYM MATER PO 2014. [DOI: 10.1080/00914037.2014.936595] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Solid dispersion tablets of breviscapine with polyvinylpyrrolidone K30 for improved dissolution and bioavailability to commercial breviscapine tablets in beagle dogs. Eur J Drug Metab Pharmacokinet 2013; 39:203-10. [PMID: 24061692 DOI: 10.1007/s13318-013-0150-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 08/29/2013] [Indexed: 10/26/2022]
Abstract
Breviscapine, one of cardiovascular drugs extracted from a Chinese herb Erigeron breviscapinus, has been frequently used to treat cardiovascular diseases such as hypertension, angina pectoris, coronary heart disease and stroke. However, its poor water solubility and low bioavailability in vivo severely restrict the clinical application. To overcome these drawbacks, breviscapine solid dispersion tablets consisting of breviscapine, polyvinylpyrrolidone K30 (PVP K30), microcrystalline cellulose and crospovidone were appropriately prepared. In vitro dissolution profiles showed that breviscapine released percentage of solid dispersion tablets reached 90 %, whereas it was only 40 % for commercial breviscapine tablets. Comparative pharmacokinetic study between solid dispersion tablets and commercial products was investigated on the normal beagle dogs after oral administration. Results showed that the bioavailability of breviscapine was greatly increased by 3.45-fold for solid dispersion tablets. The greatly improved dissolution rate and bioavailability might be attributed to intermolecular hydrogen bonding reactions between PVP K30 and scutellarin. These findings suggest that our solid dispersion tablets can greatly improve the bioavailability as well as the dissolution rate of breviscapine.
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25
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Dukeck R, Sieger P, Karmwar P. Investigation and correlation of physical stability, dissolution behaviour and interaction parameter of amorphous solid dispersions of telmisartan: A drug development perspective. Eur J Pharm Sci 2013; 49:723-31. [DOI: 10.1016/j.ejps.2013.05.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/22/2013] [Accepted: 05/03/2013] [Indexed: 10/26/2022]
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26
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Abdelbary AA, Li X, El-Nabarawi M, Elassasy A, Jasti B. Comparison of nanomilling and coprecipitation on the enhancement ofin vitrodissolution rate of poorly water-soluble model drug aripiprazole. Pharm Dev Technol 2013; 19:491-500. [DOI: 10.3109/10837450.2013.800107] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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27
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Mukharya A, Chaudhary S, Mansuri N, Misra AK. Solid-state characterization of lacidipine/PVP K(29/32) solid dispersion primed by solvent co-evaporation. Int J Pharm Investig 2012; 2:90-6. [PMID: 23119238 PMCID: PMC3482771 DOI: 10.4103/2230-973x.100048] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: Lacidipine (LCDP) is a 1,4-dihydropyridine derivative categorized as an anti-hypertensive Ca2+ channel blocker having very low solubility, and thus very low oral bioavailability, which presents a challenge to the formulation scientists. Homogeneous distribution of poorly water-soluble drugs like LCDP in polyvinylpyrrolidone (PVP), a hydrophilic carrier, is definitely a suitable way to improve the bioavailability of such drugs. Materials and Methods: The aim of the study was to develop a combined thermal, imaging, and spectroscopic approach, and characterize physical state, dissolution behavior, and elucidation of drug–PVP interaction in LCDP/PVP solid dispersion (SD) using differential scanning calorimetry (DSC), X-ray diffractometry (XRD), fourier transform infrared (FTIR) spectroscopy, and hot stage microscopy (HSM), which is the prerequisite for the development of a useful drug product. Results: Dissolution studies of LCDP and its physical mixture with PVP showed less than 50% release even after 60 min, whereas SD of LCDP/PVP ratio of 1:10% w/w showed complete dissolution within 45 min. DSC and powder XRD proved the absence of crystallinity in LCDP/PVP SD at a ratio of 1:10% w/w. The FTIR spectroscopy indicated formation of hydrogen bond between LCDP and PVP. In the SD FTIR spectra, the –NH stretching vibrations and the –C=O stretch in esteric groups of LCDP shift to free –NH and C=O regions, indicating the rupture of intermolecular hydrogen bond in the crystalline structure of LCDP. Conclusion: Solid-state characterization by HSM, DSC, XRD, and FTIR studies, in comparison with corresponding physical mixtures, revealed the changes in solid state during the formation of dispersion and justified the formation of high-energy amorphous phase.
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Affiliation(s)
- Amit Mukharya
- Department of Formulation Development, Regulated Market, Cadila Pharmaceuticals Limited, Dholka, Ahmedabad, India
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28
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Lu F, Shen YY, Shen YQ, Hou JW, Wang ZM, Guo SR. Treatments of paclitaxel with poly(vinyl pyrrolidone) to improve drug release from poly(ɛ-caprolactone) matrix for film-based stent. Int J Pharm 2012; 434:161-8. [DOI: 10.1016/j.ijpharm.2012.05.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 04/28/2012] [Accepted: 05/19/2012] [Indexed: 10/28/2022]
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29
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Zawar LR, Bari SB. Preparation, Characterization and in Vivo Evaluation of Antihyperglycemic Activity of Microwave Generated Repaglinide Solid Dispersion. Chem Pharm Bull (Tokyo) 2012; 60:482-7. [DOI: 10.1248/cpb.60.482] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Laxmikant Ramvallabh Zawar
- Department of Pharmaceutics and Quality Assurance, R. C. Patel Institute of Pharmaceutical Education and Research
| | - Sanjay Baburao Bari
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research
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30
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Pahovnik D, Reven S, Grdadolnik J, Borštnar R, Mavri J, Žagar E. Determination of the interaction between glimepiride and hyperbranched polymers in solid dispersions. J Pharm Sci 2011; 100:4700-9. [DOI: 10.1002/jps.22662] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 05/19/2011] [Accepted: 05/20/2011] [Indexed: 11/07/2022]
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31
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Yu M, Sun L, Li W, Lan Z, Li B, Tan L, Li M, Yang X. Investigation of structure and dissolution properties of a solid dispersion of lansoprazole in polyvinylpyrrolidone. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.08.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Cholo MC, Steel HC, Fourie PB, Germishuizen WA, Anderson R. Clofazimine: current status and future prospects. J Antimicrob Chemother 2011; 67:290-8. [PMID: 22020137 DOI: 10.1093/jac/dkr444] [Citation(s) in RCA: 229] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Clofazimine, a lipophilic riminophenazine antibiotic, possesses both antimycobacterial and anti-inflammatory activities. However, its efficacy has been demonstrated only in the treatment of leprosy, not in human tuberculosis, despite the fact that this agent is impressively active in vitro against multidrug-resistant strains of Mycobacterium tuberculosis. Recent insights into novel targets and mechanisms of antimicrobial and anti-inflammatory activity coupled with the acquisition of innovative drug delivery technologies have, however, rekindled interest in clofazimine as a potential therapy for multidrug- and extensively multidrug-resistant tuberculosis in particular, as well as several autoimmune diseases. The primary objective of this review is to critically evaluate these recent developments and to assess their potential impact on improving the therapeutic efficacy and versatility of clofazimine.
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Affiliation(s)
- Moloko C Cholo
- Medical Research Council Unit for Inflammation and Immunity, Department of Immunology, Faculty of Health Sciences, University of Pretoria and Tshwane Academic Division of the National Health Laboratory Service, Pretoria, South Africa.
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33
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Ansari MT, Batty KT, Iqbal I, Sunderland VB. Improving the solubility and bioavailability of dihydroartemisinin by solid dispersions and inclusion complexes. Arch Pharm Res 2011; 34:757-65. [DOI: 10.1007/s12272-011-0509-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 10/12/2010] [Accepted: 10/18/2010] [Indexed: 10/18/2022]
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34
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Ansari MT, Karim S, Ranjha NM, Shah NH, Muhammad S. Physicochemical characterization of artemether solid dispersions with hydrophilic carriers by freeze dried and melt methods. Arch Pharm Res 2010; 33:901-10. [PMID: 20607495 DOI: 10.1007/s12272-010-0613-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Revised: 02/08/2010] [Accepted: 02/16/2010] [Indexed: 11/29/2022]
Abstract
Solid dispersions of artemether (ARM), a poorly soluble drug, were prepared using polyvinylpyrrolidone (PVPK25, MW 25000) and polyethyleneglycol (PEG4000, MW 4000) as excipients. These dispersions were studied by physical mixture, freeze-drying, and melting methods. They were characterized by X-ray diffraction pattern, fourier transform infrared spectrophotometry, differential scanning calorimetery, and dissolution studies. X-ray diffraction pattern revealed the complete crystalline nature of artemether, whereas physical mixtures, melt mixtures (MM), and freeze-dried solid dispersions (FDSD) of ARM-PVP and ARM-PEG showed reduced peak intensities with increased PVP/PEG content. PEG showed lower decreases in intensity than PVP preparations. Differential scanning calorimetery also confirmed this finding by showing either a small or absent endotherm. Red shifts in O-H stretching vibrations of ARM were higher in the MM of ARM-PVP than its FDSD as exhibited by fourier transform infrared spectrophotometry. The carbonyl peak of PEG was blue shifted in MM and FDSD, whereas the C=O peak of PVP was red shifted in FDSD and MM, indicating different H-bonding by PEG and PVP with ARM. The rate of dissolution (phosphate buffer at pH 4.5) was improved up to 4-fold in MM and FDSD compared to artemether, and up to 50% compared to physical mixtures. The preparation of solid dispersions influenced the rate of dissolution at various drug-carrier ratios, i.e., the dissolution order of 1:1-1:4 ratio was MM > FDSD; FDSD > MM at 1:6-1:8 ratios of both ARM-PVP and ARM-PEG; and FDSD of ARM-PEG > FDSD of ARM-PVP > MM of ARM-PEG > MM of ARM-PVP at a 1:10 ratio.
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35
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Pandya P, Gattani S, Jain P, Khirwal L, Surana S. Co-solvent evaporation method for enhancement of solubility and dissolution rate of poorly aqueous soluble drug simvastatin: in vitro-in vivo evaluation. AAPS PharmSciTech 2008; 9:1247-52. [PMID: 19115110 DOI: 10.1208/s12249-008-9176-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Accepted: 11/11/2008] [Indexed: 11/30/2022] Open
Abstract
A number of synthesized chemical molecules suffer from low aqueous solubility problems. Enhancement of aqueous solubility, dissolution rate, and bioavailability of drug is a very challenging task in drug development. In the present study, solubility and dissolution of poorly aqueous soluble drug simvastatin (SIM) was enhanced using hydrophilic, low viscosity grade polymer hydroxypropyl methylcellulose (HPMC K(3)LV). The co-solvent evaporation method was developed for efficient encapsulation of hydrophobic drug in polymer micelles of HPMC K(3)LV. Spray drying and rotaevaporation method were applied for solvent evaporation. Co-solvent-evaporated mixture in solid state was determined by differential scanning calorimetry (DSC), X-ray diffraction studies (XRD), scanning electron microscopy, and Fourier-transform infrared spectroscopy. In vitro-in vivo studies were performed on co-solvent-evaporated mixture and compared with SIM. In vivo study was conducted on healthy albino rats (Wister strain), and formulations were administered by oral route. Results of the study show the conversion of crystalline form of SIM into amorphous form. The dissolution rate was remarkably increased in co-solvent-evaporated mixtures compared to SIM. co-solvent-evaporated mixtures showed better reduction in total cholesterol and triglyceride levels than the SIM. The low-viscosity grade HPMC acts as a surfactant, which enhances the wetting of drug and thus improves the solubility of drug. The co-solvent evaporation method provides good encapsulation efficiency and produces amorphous form of SIM, which gave better solubility and dissolution than the crystalline SIM.
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Solid dispersions of dihydroartemisinin in polyvinylpyrrolidone. Arch Pharm Res 2008; 31:390-8. [DOI: 10.1007/s12272-001-1169-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2007] [Indexed: 10/22/2022]
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Rane Y, Mashru R, Sankalia M, Sankalia J. Effect of hydrophilic swellable polymers on dissolution enhancement of carbamazepine solid dispersions studied using response surface methodology. AAPS PharmSciTech 2007; 8:Article 27. [PMID: 17622105 PMCID: PMC2750367 DOI: 10.1208/pt0802027] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The objective of this work was to study dissolution enhancement efficiency and solid dispersion formation ability of hydrophilic swellable polymers such as sodium carboxymethyl cellulose (Na-CMC), sodium starch glycolate (SSG), pregelatinized starch (PGS), and hydroxypropylmethyl cellulose (HPMC) with carbamazepine using 3(2) full factorial design for each of the polymers. Solid dispersions of carbamazepine were prepared using solvent evaporation method with around 70% solvent recovery. The independent variables were the amount of polymer and organic solvent. The dependent variables assessed were percentage drug dissolved at various time points and dispersion efficiency (ie, in terms of particle size of solid dispersion). Solid dispersions were evaluated for percentage drug dissolved, wettability, differential scanning calorimetry, scanning electron microscopy, and angle of repose. Multiple linear regression of results obtained led to equations, which generated contour plots to relate the dependent variables. Similarity factor and mean dissolution time were used to compare dissolution patterns obtained in distilled water and simulated gastric fluid United States Pharmacopeia (USP) XXVI of pH 1.2. Maximum drug dissolution was obtained with polymer order Na-CMC>SSG>PGS>HPMC. Particle size of drug was reduced ~10-15, 3-5, 5-7, and 10-25 times in Na-CMC, SSG, PGS, and HPMC solid dispersions, respectively; whereas wettability of solid dispersions was found in the order of Na-CMC>HPMC>PGS>SSG. Angle of repose was found to be in the range of 29 degrees to 35 degrees for all solid dispersions, which shows good flowability characteristics. HPMC showed increase in drug dissolution up to an optimized level; however, further increase in its concentration decreased drug dissolution.
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Affiliation(s)
- Yogesh Rane
- Pharmacy Department, Faculty of Technology and Engineering, The M. S. University of Baroda, Kalabhavan, PO Box 51, 390 001 Vadodara, Gujarat India
| | - Rajshree Mashru
- Pharmacy Department, Faculty of Technology and Engineering, The M. S. University of Baroda, Kalabhavan, PO Box 51, 390 001 Vadodara, Gujarat India
| | - Mayur Sankalia
- Pharmacy Department, Faculty of Technology and Engineering, The M. S. University of Baroda, Kalabhavan, PO Box 51, 390 001 Vadodara, Gujarat India
| | - Jolly Sankalia
- Pharmacy Department, Faculty of Technology and Engineering, The M. S. University of Baroda, Kalabhavan, PO Box 51, 390 001 Vadodara, Gujarat India
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