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Zhang Q, Soulère L, Queneau Y. Amide bioisosteric replacement in the design and synthesis of quorum sensing modulators. Eur J Med Chem 2024; 273:116525. [PMID: 38801798 DOI: 10.1016/j.ejmech.2024.116525] [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: 03/13/2024] [Revised: 05/08/2024] [Accepted: 05/20/2024] [Indexed: 05/29/2024]
Abstract
The prevention or control of bacterial infections requires continuous search for novel approaches among which bacterial quorum sensing inhibition is considered as a complementary antibacterial strategy. Quorum sensing, used by many different bacteria, functions through a cell-to-cell communication mechanism relying on chemical signals, referred to as autoinducers, such as N-acyl homoserine lactones (AHLs) which are the most common chemical signals in this system. Designing analogs of these autoinducers is one of the possible ways to interfere with quorum sensing. Since bioisosteres are powerful tools in medicinal chemistry, targeting analogs of AHLs or other signal molecules and mimics of known QS modulators built on amide bond bioisosteres is a relevant strategy in molecular design and synthetic routes. This review highlights the application of amide bond bioisosteric replacement in the design and synthesis of novel quorum sensing inhibitors.
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Affiliation(s)
- Qiang Zhang
- Hubei Key Laboratory of Purification and Application of Plant Anti-cancer Active Ingredients, Hubei University of Education, 129 Second Gaoxin Road, Wuhan 430205, China
| | - Laurent Soulère
- INSA Lyon, CNRS, Universite Claude Bernard Lyon 1, UMR 5246, ICBMS, Bât. E. Lederer, 1 rue Victor Grignard, F-69622, Villeurbanne, France
| | - Yves Queneau
- INSA Lyon, CNRS, Universite Claude Bernard Lyon 1, UMR 5246, ICBMS, Bât. E. Lederer, 1 rue Victor Grignard, F-69622, Villeurbanne, France.
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2
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Macedo J, Vanhoorne V, Vervaet C, Pinto JF. Influence of formulation variables on the processability and properties of tablets manufactured by fused deposition modelling. Int J Pharm 2023; 637:122854. [PMID: 36948473 DOI: 10.1016/j.ijpharm.2023.122854] [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: 12/01/2022] [Revised: 03/07/2023] [Accepted: 03/12/2023] [Indexed: 03/24/2023]
Abstract
The present work studied the influence of different formulation variables (defined also as factors), namely, different polymers (HPC EF, PVA and HPMC-AS LG), drugs with different water solubilities (paracetamol, hydrochlorothiazide and celecoxib) and drug loads (10 or 30 %) on their processability by HME and FDM. Both filaments and tablets were characterized for physic and chemical properties (DSC, XRPD, FTIR) and performance properties (drug content, in vitro drug release). Experiments were designed to highlight relationships between the 3 factors selected and the mechanical properties of filaments, tablet mass and dissolution profiles of the model drugs from printed tablets. While the combination of hydrochlorothiazide and HPMC-AS LG could not be extruded, the combination of paracetamol with HPC EF turned the filaments too ductile and not stiff enough hampering the process of printing. All other polymer and drug combinations could be successfully extruded and printed. Models reflected the influence of the solubility of the drug considered but not the drug load in formulations. The ranking of the drug release rates was in good agreement with their solubilities. Furthermore, PVA presenting the fastest swelling rate, promoted the fastest drugs' releases in comparison with the other polymers studied. Overall, the study enabled the identification of the key factors affecting the properties of printed tablets, with the proposal of a model that has valued the relative contribution of each factor to the overall performance of tablets.
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Affiliation(s)
- Joana Macedo
- iMed.ULisboa, Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
| | - Valérie Vanhoorne
- Laboratory of Pharmaceutical Technology, Ghent University, Ghent, Belgium
| | - Chris Vervaet
- Laboratory of Pharmaceutical Technology, Ghent University, Ghent, Belgium
| | - João F Pinto
- iMed.ULisboa, Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal.
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3
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Khan S, Zahoor M, Rahman MU, Gul Z. Cocrystals; basic concepts, properties and formation strategies. Z PHYS CHEM 2023. [DOI: 10.1515/zpch-2022-0175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Abstract
Cocrystallization is an old technique and remains the focus of several research groups working in the field of Chemistry and Pharmacy. This technique is basically in field for improving physicochemical properties of material which can be active pharmaceutical ingredients (APIs) or other chemicals with poor profile. So this review article has been presented in order to combine various concepts for scientists working in the field of chemistry, pharmacy or crystal engineering, also it was attempt to elaborate concepts belonging to crystal designing, their structures and applications. A handsome efforts have been made to bring scientists together working in different fields and to make chemistry easier for a pharmacist and pharmacy for chemists pertaining to cocrystals. Various aspects of chemicals being used as co-formers have been explored which predict the formation of co-crystals or molecular salts and even inorganic cocrystals.
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Affiliation(s)
- Shahab Khan
- Department of Chemistry , University of Malakand , Dir Lower 18800 , Khyber Pakhtunkhwa , Pakistan
| | - Muhammad Zahoor
- Department of Biochemistry , University of Malakand , Dir Lower 18800 , Khyber Pakhtunkhwa , Pakistan
| | - Mudassir Ur Rahman
- Department of Chemistry , Government Degree College Lundkhwar , Mardan 23130 , Khyber Pakhtunkhwa , Pakistan
| | - Zarif Gul
- Department of Chemistry , University of Malakand , Dir Lower 18800 , Khyber Pakhtunkhwa , Pakistan
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4
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Towards the Development of Novel Diclofenac Multicomponent Pharmaceutical Solids. CRYSTALS 2022. [DOI: 10.3390/cryst12081038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Multicomponent pharmaceutical materials offer new opportunities to address drug physicochemical issues and to obtain improved drug formulation, especially on oral administration drugs. This work reports three new multicomponent pharmaceutical crystals of the non-steroidal anti-inflammatory drug diclofenac and the nucleobases adenine, cytosine, and isocytosine. They have been synthesized by mechanochemical methods and been characterized in-depth in solid-state by powder and single crystal X-ray diffraction, as well as other techniques such as thermal analyses and infrared spectroscopy. Stability and solubility tests were also performed on these materials. This work aimed to evaluate the physicochemical properties of these solid forms, which revealed thermal stability improvement. Dissociation of the new phases was observed in water, though. This fact is consistent with the reported observed layered structures and BFDH morphology calculations.
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5
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Synthesis, Characterization, and Intrinsic Dissolution Studies of Drug-Drug Eutectic Solid Forms of Metformin Hydrochloride and Thiazide Diuretics. Pharmaceutics 2021; 13:pharmaceutics13111926. [PMID: 34834341 PMCID: PMC8620433 DOI: 10.3390/pharmaceutics13111926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/22/2021] [Accepted: 09/28/2021] [Indexed: 11/30/2022] Open
Abstract
The mechanochemical synthesis of drug–drug solid forms containing metformin hydrochloride (MET·HCl) and thiazide diuretics hydrochlorothiazide (HTZ) or chlorothiazide (CTZ) is reported. Characterization of these new systems indicates formation of binary eutectic conglomerates, i.e., drug–drug eutectic solids (DDESs). Further analysis by construction of binary diagrams (DSC screening) exhibited the characteristic V-shaped form indicating formation of DDESs in both cases. These new DDESs were further characterized by different techniques, including thermal analysis (DSC), solid state NMR spectroscopy (SSNMR), powder X-ray diffraction (PXRD) and scanning electron microscopy–energy dispersive X-ray spectroscopy analysis (SEM–EDS). In addition, intrinsic dissolution rate experiments and solubility assays were performed. In the case of MET·HCl-HTZ (χMET·HCl = 0.66), we observed a slight enhancement in the dissolution properties compared with pure HTZ (1.21-fold). The same analysis for the solid forms of MET·HCl-CTZ (χMET·HCl = 0.33 and 0.5) showed an enhancement in the dissolved amount of CTZ accompanied by a slight improvement in solubility. From these dissolution profiles and saturation solubility studies and by comparing the thermodynamic parameters (ΔHfus and ΔSfus) of the pure drugs with these new solid forms, it can be observed that there was a limited modification in these properties, not modifying the free energy of the solution (ΔG) and thus not allowing an improvement in the dissolution and solubility properties of these solid forms.
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6
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In-silico methods of cocrystal screening: A review on tools for rational design of pharmaceutical cocrystals. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Queiroz ALP, Rodrigues M, Zeglinski J, Crean AM, Sarraguça MC, Vucen S. Determination of co-crystal phase purity by mid infrared spectroscopy and multiple curve resolution. Int J Pharm 2021; 595:120246. [PMID: 33482224 DOI: 10.1016/j.ijpharm.2021.120246] [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: 09/29/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 11/29/2022]
Abstract
Multivariate Curve Resolution (MCR) was used to determine the phase purity of pharmaceutical co-crystals from mid infrared spectra. An in-silico coformer screening was used to choose one of ten potential coformers. This analysis used quantum chemistry simulation to predict which coformers are thermodynamically inclined to form cocrystals with the model drug, hydrochlorothiazide. The coformer chosen was nicotinamide. An experimental solvent screening by ultrasound assisted slurry co-crystallization was performed to evaluate the capacity of the method to determine phase purity. Afterwards, slurry and slow evaporation co-crystallizations were performed at 10, 25, and 40 °C using 7 solvent systems, and two levels of agitation for the evaporation co-crystallization (on and off). Mid infrared spectroscopy (MIRS) analysis of the products of these co-crystallizations was used to develop an MCR model to determine co-crystal phase purity. The MCR results were compared with a reference co-crystal. Experimental design (DoE) was used to investigate the effect of solvents, temperature, and agitation on the purity of co-crystals produced by slurry and evaporation co-crystallization. DoE revealed that evaporation co-crystallization with agitating at 65 rpm formed co-crystals with greater phase purity. The optimal temperature varied with the solvent used.
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Affiliation(s)
- Ana Luiza P Queiroz
- SSPC Pharmaceutical Research Centre, School of Pharmacy, University College Cork, Cork, Ireland; APC Ltd., Building 11, Cherrywood Business Park, Loughlinstown, Dublin D18 DH50, Ireland
| | - Marisa Rodrigues
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Jacek Zeglinski
- APC Ltd., Building 11, Cherrywood Business Park, Loughlinstown, Dublin D18 DH50, Ireland
| | - Abina M Crean
- SSPC Pharmaceutical Research Centre, School of Pharmacy, University College Cork, Cork, Ireland
| | - Mafalda Cruz Sarraguça
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Sonja Vucen
- SSPC Pharmaceutical Research Centre, School of Pharmacy, University College Cork, Cork, Ireland
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8
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Zhang Y, Du X, Wang H, He Z, Liu H. Sacubitril-valsartan cocrystal revisited: role of polymer excipients in the formulation. Expert Opin Drug Deliv 2020; 18:515-526. [PMID: 33280447 DOI: 10.1080/17425247.2021.1860940] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Objectives: This study investigated the impact of polymer excipients on a typical cocrystal for sacubitril (SAC) and valsartan (VAL), aiming to guide optional formulation design and maximize oral bioavailability.Methods: Poly vinyl pyrrolidone (PVP) and hydroxypropyl cellulose (HPC) and hydroxypropyl methylcellulose (HPMC) were selected. The dissolution/permeation system was used to predict both the kinetics of drug supersaturation and the simple permeation. The intermolecular interaction was analyzed by 1H NMR spectroscopy and molecular dynamics simulation. Pharmacokinetic study was performed to assess the impact of polymer excipients in vivo.Results: Our study found that unappreciated excipients in the formulation, especially some polymers, might compete with the intermolecular hydrogen bonding among the cocrystals components and provide unexpected affinity, and thus leverage the therapeutic benefits. HPMC as a coating excipient used in the Entresto® tablet hampered the supersaturation of API, which led to the poor oral absorption of cocrystals. Conversely, PVP appeared to promote and maintain drug supersaturation, resulting in improved bioavailability of API.Conclusion: In conclusion, understanding the interplay between the cocrystal components and polymers is the key to optimizing the excipients to maximize the performance of cocrystal based oral drug formulation.
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Affiliation(s)
- Yingxi Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaoxiao Du
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Hanxun Wang
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Hongzhuo Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
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9
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Interconvertible Hydrochlorothiazide–Caffeine Multicomponent Pharmaceutical Materials: A Solvent Issue. CRYSTALS 2020. [DOI: 10.3390/cryst10121088] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The design of new multicomponent pharmaceutical materials that involve different active pharmaceutical ingredients (APIs), e.g., drug-drug cocrystals, is a novel and interesting approach to address new therapeutic challenges. In this work, the hydrochlorothiazide-caffeine (HCT–CAF) codrug and its methanol solvate have been synthesized by mechanochemical methods and thoroughly characterized in the solid state by powder and single crystal X-ray diffraction, respectively, as well as differential scanning calorimetry, thermogravimetric analyses and infrared spectroscopy. In addition, solubility and stability studies have also been performed looking for improved physicochemical properties of the codrug. Interestingly, the two reported structures show great similarity, which allows conversion between them. The desolvated HCT–CAF cocrystal shows great stability at 24 h and an enhancement of solubility with respect to the reference HCT API. Furthermore, the contribution of intermolecular forces on the improved physicochemical properties was evaluated by computational methods showing strong and diverse H-bond and π–π stacking interactions.
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10
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11
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Wang X, Du S, Zhang R, Jia X, Yang T, Zhang X. Drug-drug cocrystals: Opportunities and challenges. Asian J Pharm Sci 2020; 16:307-317. [PMID: 34276820 PMCID: PMC8261079 DOI: 10.1016/j.ajps.2020.06.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/11/2020] [Accepted: 06/16/2020] [Indexed: 02/06/2023] Open
Abstract
Recently, drug-drug cocrystal attracts more and more attention. It offers a low risk, low-cost but high reward route to new and better medicines and could improve the physiochemical and biopharmaceutical properties of a medicine by addition of a suitable therapeutically effective component without any chemical modification. Having so many advantages, to date, the reported drug-drug cocrystals are rare. Here we review the drug-drug cocrystals that reported in last decade and shed light on the opportunities and challenges for the development of drug-drug cocrystals.
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Affiliation(s)
- Xiaojuan Wang
- Department of Phamacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Shuzhang Du
- Department of Phamacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Rui Zhang
- Department of Phamacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xuedong Jia
- Department of Phamacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Ting Yang
- Department of Phamacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xiaojian Zhang
- Department of Phamacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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12
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Ruponen M, Rusanen H, Laitinen R. Dissolution and Permeability Properties of Co-Amorphous Formulations of Hydrochlorothiazide. J Pharm Sci 2020; 109:2252-2261. [PMID: 32315662 DOI: 10.1016/j.xphs.2020.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 10/24/2022]
Abstract
A biopharmaceutics classification system class IV drug, hydrochlorothiazide (HCT), was combined with co-formers of L-and d-arginine (ARG) and sodium lauryl sulphate (SLS) by cryomilling in 1:1 molar ratio. Co-amorphization was observed with L- and D-ARG. These mixtures showed a single glass transition, evidence of possible salt formation and improved physical stability at elevated temperatures and/or humidity when compared with amorphous HCT. The co-amorphous formulations, along with the combinations of HCT and HCT:L-ARG with polyvinylpyrrolidone (PVP) in 1:1 mass ratio, were investigated with a simultaneous dissolution/permeation setup using parallel artificial membrane permeability assay (PAMPA) or Madine Darby kidney cells (MDCKII) as the permeation barrier. It was observed that co-amorphization with L-ARG and D-ARG was able to induce a supersaturated state for HCT, possibly through intermolecular interactions, but there was virtually no difference between the dissolution properties of the mixtures formed with the 2 optical isomers of ARG. The permeability of HCT was found to be dependent on the dissolution properties of the formulations in both PAMPA and cellular barrier experiments. Thus, co-amorphization of HCT with L- and D-ARG demonstrated the possibility to enhance the dissolution and thereby the permeation potential of a BCS class IV drug.
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Affiliation(s)
- Marika Ruponen
- School of Pharmacy, University of Eastern Finland, P.O.Box 1627, 70211, Kuopio, Finland
| | - Henna Rusanen
- School of Pharmacy, University of Eastern Finland, P.O.Box 1627, 70211, Kuopio, Finland
| | - Riikka Laitinen
- School of Pharmacy, University of Eastern Finland, P.O.Box 1627, 70211, Kuopio, Finland.
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13
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Rodrigues M, Lopes J, Guedes A, Sarraguça J, Sarraguça M. Considerations on high-throughput cocrystals screening by ultrasound assisted cocrystallization and vibrational spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117876. [PMID: 31818645 DOI: 10.1016/j.saa.2019.117876] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/08/2019] [Accepted: 11/28/2019] [Indexed: 06/10/2023]
Abstract
For industrial production of cocrystals, screening phase is essential, helping to become the process faster, more effective and efficient, reducing the quantity of reactants used and associated costs. High-throughput screening (HTS) methods can analyze a wide range of compounds simultaneously. As an answer to industrial necessity of more efficient screening methods, different methods must be developed and optimized. Vibrational spectroscopic techniques are fast, non-destructive and non-invasive, do not need pre-treatment of the samples and allow obtaining qualitative and quantitative information. They are useful in cocrystal analysis, once they detect weak interaction as hydrogen bonding, the basis of cocrystal formation. Therefore, its application in the analysis of cocrystal screening methods, together with multivariate analysis, should be studied in detail. For this end, a HTS procedure of hydrochlorothiazide (HTZ) cocrystals is performed using a 96-well plate and ultrasound-assisted cocrystallization. Six coformers were tested considering ratios of HTZ:coformer of 1:1 and 1:2. The cocrystallization products were analyzed by mid infrared spectroscopy and Raman microspectroscopy. Nicotinamide and p-aminobenzoic acid formed cocrystals with HTZ. The systems with arginine showed that the coformer suffered amorphization; however, no proof of the solid state of HTZ was obtained. The results were not conclusive for the system with citric acid. Additionally, in the nicotinamide and citric acid systems, the physical mixture of the plate also reacted without the present of solvent. Overall, the use of mid infrared spectroscopy and multivariate data analysis provided important information on cocrystal formation, purity, and correct ratio assessment.
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Affiliation(s)
- Marisa Rodrigues
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - João Lopes
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
| | - Alexandra Guedes
- Departamento de Geociências, Ambiente e Ordenamento do Território da Faculdade de Ciências da Universidade do Porto e Instituto de Ciências da Terra, Porto, Portugal
| | - Jorge Sarraguça
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Mafalda Sarraguça
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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14
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Haneef J, Chadha R. Sustainable synthesis of ambrisentan – syringic acid cocrystal: employing mechanochemistry in the development of novel pharmaceutical solid form. CrystEngComm 2020. [DOI: 10.1039/c9ce01818b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Development of the pharmaceutical cocrystal of ambrisentan with syringic acid via mechanochemistry as a greener and sustainable methodology with improved biopharmaceutical parameters.
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Affiliation(s)
- Jamshed Haneef
- Department of Pharmaceutical Chemistry
- School of Pharmaceutical Education and Research
- Jamia Hamdard
- New Delhi 110 062
- India
| | - Renu Chadha
- University Institute of Pharmaceutical Sciences
- UGC-Centre of Advanced Studies (CAS)
- Panjab University
- Chandigarh 160 014
- India
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15
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An overview of techniques for multifold enhancement in solubility of poorly soluble drugs. CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2019. [DOI: 10.2478/cipms-2019-0035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Poor water solubility of newly discovered compounds has become the most common challenge in the drug development process. Indeed, poor solubility is considered as the root cause of failure of drug during drug development phases. Moreover, it has also been reported to be the main reason for bioavailability issues such as poor, inconsistent, incomplete and highly variable bioavailability of the marketed products. As per an estimate, approximately 90% of drug molecules suffer with poor water solubility at early stage and approximately 40% of the marketed drugs have bioavailability problems mainly due to poor water solubility. Solubility enhancement of the newly discovered compounds is primary research area for the pharmaceutical industries and research institutions. The conventional techniques to improve aqueous solubility of drugs employ salt formation, prodrug formation, co-crystallization, complexation, amorphous solid dispersion and use of co-solvent, surfactants or hydrotropic agents. Current advancement in the science and technology has enabled the use of relatively new techniques under the umbrella of nanotechnology. These include the development of nanocrystals, nanosuspensions, nanoemulsions, microemulsions, liposomes and nanoparticles to enhance the solubility. This review focuses on the conventional and current approaches of multifold enhancement in the solubility of poorly soluble marketed drugs, including newly discovered compounds.
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16
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Thomas SP, Grosjean A, Flematti GR, Karton A, Sobolev AN, Edwards AJ, Piltz RO, Iversen BB, Koutsantonis GA, Spackman MA. Investigation of an Unusual Crystal Habit of Hydrochlorothiazide Reveals Large Polar Enantiopure Domains and a Possible Crystal Nucleation Mechanism. Angew Chem Int Ed Engl 2019; 58:10255-10259. [PMID: 31136063 DOI: 10.1002/anie.201905085] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Indexed: 11/09/2022]
Abstract
The observation of an unusual crystal habit in the common diuretic drug hydrochlorothiazide (HCT), and identification of its subtle conformational chirality, has stimulated a detailed investigation of its crystalline forms. Enantiomeric conformers of HCT resolve into an unusual structure of conjoined enantiomorphic twin crystals comprising enantiopure domains of opposite chirality. The purity of the domains and the chiral molecular conformation are confirmed by spatially revolved synchrotron micro-XRD experiments and neutron diffraction, respectively. Macroscopic inversion twin symmetry observed between the crystal wings suggests a pseudoracemic structure that is not a solid solution or a layered crystal structure, but an unusual structural variant of conglomerates and racemic twins. Computed interaction energies for molecular pairs in the racemic and enantiopure polymorphs of HCT, and the observation of large opposing unit-cell dipole moments for the enantiopure domains in these twin crystals, suggest a plausible crystal nucleation mechanism for this unusual crystal habit.
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Affiliation(s)
- Sajesh P Thomas
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia.,Department of Chemistry and iNano, Aarhus University, 8000, Aarhus C, Denmark
| | - Arnaud Grosjean
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
| | - Gavin R Flematti
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
| | - Amir Karton
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
| | - Alexandre N Sobolev
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia, Perth, WA, 6009, Australia
| | - Alison J Edwards
- Australian Centre for Neutron Scattering, ANSTO, Lucas Heights, NSW, 2234, Australia
| | - Ross O Piltz
- Australian Centre for Neutron Scattering, ANSTO, Lucas Heights, NSW, 2234, Australia
| | - Bo B Iversen
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | - George A Koutsantonis
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
| | - Mark A Spackman
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
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17
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Bolla G, Nangia A. Supramolecular synthon hierarchy in sulfonamide cocrystals with syn-amides and N-oxides. IUCRJ 2019; 6:751-760. [PMID: 31316818 PMCID: PMC6608642 DOI: 10.1107/s2052252519005037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 04/12/2019] [Indexed: 06/10/2023]
Abstract
Sulfonamide drugs are well known antibacterial and antimicrobial molecules for pharmaceutical development. Building a library of suitable supramolecular synthons for the sulfonamide functional group and understanding their crystal structures with partner coformer molecules continues to be a challenge in crystal engineering. Although a few sulfonamide cocrystals with amides and N-oxides have been reported, the body of work on sulfonamide synthons is limited compared with those that have carb-oxy-lic acids and carboxamides. To address this structural gap, the present work is primarily focused on sulfonamide-lactam and sulfonamide-syn-amide synthons with drugs such as celecoxib, hydro-chloro-thia-zide and furosemide. Furthermore, the electrostatic potential of previously reported cocrystals has been recalculated to show that the negative electrostatic potential on the lactam and syn-amide O atom is higher compared with the charge on carboxamide and pyridine N-oxide O atoms. The potential of sulfonamide molecules to form cocrystals with syn-amides and lactams are evaluated in terms of the electrostatic potential energy for the designed supramolecular synthons.
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Affiliation(s)
- Geetha Bolla
- School of Chemistry, University of Hyderabad, Gachibowli, Central University P.O., Hyderabad 500 046, India
| | - Ashwini Nangia
- School of Chemistry, University of Hyderabad, Gachibowli, Central University P.O., Hyderabad 500 046, India
- Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
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Thomas SP, Grosjean A, Flematti GR, Karton A, Sobolev AN, Edwards AJ, Piltz RO, Iversen BB, Koutsantonis GA, Spackman MA. Investigation of an Unusual Crystal Habit of Hydrochlorothiazide Reveals Large Polar Enantiopure Domains and a Possible Crystal Nucleation Mechanism. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sajesh P. Thomas
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
- Department of Chemistry and iNano Aarhus University 8000 Aarhus C Denmark
| | - Arnaud Grosjean
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
| | - Gavin R. Flematti
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
| | - Amir Karton
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
| | - Alexandre N. Sobolev
- Centre for Microscopy, Characterisation and Analysis University of Western Australia Perth WA 6009 Australia
| | - Alison J. Edwards
- Australian Centre for Neutron Scattering ANSTO Lucas Heights NSW 2234 Australia
| | - Ross O. Piltz
- Australian Centre for Neutron Scattering ANSTO Lucas Heights NSW 2234 Australia
| | - Bo B. Iversen
- Center for Materials Crystallography Department of Chemistry Aarhus University 8000 Aarhus C Denmark
| | | | - Mark A. Spackman
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
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Nukala PK, Palekar S, Solanki N, Fu Y, Patki M, Shohatee AA, Trombetta L, Patel K. Investigating the application of FDM 3D printing pattern in preparation of patient-tailored dosage forms. ACTA ACUST UNITED AC 2019. [DOI: 10.2217/3dp-2018-0028] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Aim: The aim of this work was to investigate the effect of printing pattern on physical attributes and dissolution of fused deposition modeling 3D printed caplets. Methods: Hydrochlorothiazide-loaded polyvinyl alcohol filaments were prepared by hot melt extrusion. Caplets printed in hexagonal (HexCap), diamond infill (DiaCap) in three different sizes using fused deposition modeling 3D printer and evaluated for hardness, disintegration and dissolution. Results: DiaCaps exhibited higher hardness than HexCaps. Disintegration time for HexCaps was <20 mins. while DiaCaps took 25–40 mins. DiaCaps showed 20–30% lower release at all time points compared with HexCaps. Conclusion: Although composition, processing parameters were same, mere change in printing pattern alters disintegration and dissolution. Findings of this study can be invaluable in developing patient-tailored medicines.
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Affiliation(s)
- Pavan Kumar Nukala
- Department of Pharmaceutical Sciences, St. Albert's Hall, 8000 Utopia Parkway, Queens, NY 11439, USA
| | - Siddhant Palekar
- Department of Pharmaceutical Sciences, St. Albert's Hall, 8000 Utopia Parkway, Queens, NY 11439, USA
| | - Nayan Solanki
- Department of Pharmaceutical Sciences, St. Albert's Hall, 8000 Utopia Parkway, Queens, NY 11439, USA
| | - Yige Fu
- Department of Pharmaceutical Sciences, St. Albert's Hall, 8000 Utopia Parkway, Queens, NY 11439, USA
| | - Manali Patki
- Department of Pharmaceutical Sciences, St. Albert's Hall, 8000 Utopia Parkway, Queens, NY 11439, USA
| | - Ali A Shohatee
- Department of Pharmaceutical Sciences, St. Albert's Hall, 8000 Utopia Parkway, Queens, NY 11439, USA
| | - Louis Trombetta
- Department of Pharmaceutical Sciences, St. Albert's Hall, 8000 Utopia Parkway, Queens, NY 11439, USA
| | - Ketan Patel
- Department of Pharmaceutical Sciences, St. Albert's Hall, 8000 Utopia Parkway, Queens, NY 11439, USA
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20
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21
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Rodrigues M, Lopes J, Sarraguça M. Vibrational Spectroscopy for Cocrystals Screening. A Comparative Study. Molecules 2018; 23:molecules23123263. [PMID: 30544751 PMCID: PMC6321374 DOI: 10.3390/molecules23123263] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 11/28/2018] [Accepted: 12/07/2018] [Indexed: 11/16/2022] Open
Abstract
A recurrent problem faced by the pharmaceutical industry when formulating drug products concerns poorly soluble drugs, which, despite having desirable pharmacological activity, present limited bioavailability. Cocrystallization is growing up as a possible approach to tackle this problem. Cocrystals are crystalline materials comprising at least two components, solid at room temperature, and held together by non-covalent bonds. The increasing interest in these compounds is steadily demanding faster, simpler, and more reliable methods for the task of screening new cocrystals. This work aims at comparing the performance of three vibrational spectroscopy techniques (mid infrared, near infrared, and Raman spectroscopy) for cocrystals screening. Presented results are based on hydrochlorothiazide, a poorly soluble drug belonging to class IV of the Biopharmaceutical Classification System. The implemented cocrystal screening procedure tested six coformers (all considered safe for human administration) added according to a drug:coformer ratio of 1:1 and 1:2 and seven solvents with different polarity. The screening method chosen was based on slurry cocrystallization performed by sonication (ultrasound assisted) in a 96-well plate. Results show that all evaluated vibrational spectroscopy techniques provided important information regarding cocrystal formation, including information on the groups involved in the cocrystallization and purity, and can be used for the screening task.
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Affiliation(s)
- Marisa Rodrigues
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - João Lopes
- Research Institute for Medicines (iMed.Lisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal, .
| | - Mafalda Sarraguça
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
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22
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Koranne S, Sahoo A, Krzyzaniak JF, Luthra S, Arora KK, Suryanarayanan R. Challenges in Transitioning Cocrystals from Bench to Bedside: Dissociation in Prototype Drug Product Environment. Mol Pharm 2018; 15:3297-3307. [DOI: 10.1021/acs.molpharmaceut.8b00340] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sampada Koranne
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Room 9-177 Weaver-Densford
Hall, 308 Harvard Street S.E., Minneapolis, Minnesota 55455, United States
| | - Anasuya Sahoo
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Room 9-177 Weaver-Densford
Hall, 308 Harvard Street S.E., Minneapolis, Minnesota 55455, United States
| | - Joseph F. Krzyzaniak
- Groton Laboratories, Pfizer Worldwide Research & Development, Groton, Connecticut 06340, United States
| | - Suman Luthra
- Groton Laboratories, Pfizer Worldwide Research & Development, Groton, Connecticut 06340, United States
| | - Kapildev K. Arora
- Groton Laboratories, Pfizer Worldwide Research & Development, Groton, Connecticut 06340, United States
| | - Raj Suryanarayanan
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Room 9-177 Weaver-Densford
Hall, 308 Harvard Street S.E., Minneapolis, Minnesota 55455, United States
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23
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Sadia M, Arafat B, Ahmed W, Forbes RT, Alhnan MA. Channelled tablets: An innovative approach to accelerating drug release from 3D printed tablets. J Control Release 2018; 269:355-363. [DOI: 10.1016/j.jconrel.2017.11.022] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 11/10/2017] [Accepted: 11/12/2017] [Indexed: 11/30/2022]
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Panzade P, Shendarkar G, Shaikh S, Balmukund Rathi P. Pharmaceutical Cocrystal of Piroxicam: Design, Formulation and Evaluation. Adv Pharm Bull 2017; 7:399-408. [PMID: 29071222 PMCID: PMC5651061 DOI: 10.15171/apb.2017.048] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 08/03/2017] [Accepted: 08/04/2017] [Indexed: 11/16/2022] Open
Abstract
Purpose: Cocrystallisation of drug with coformers is a promising approach to alter the solid sate properties of drug substances like solubility and dissolution. The objective of the present work was to prepare, formulate and evaluate the piroxicam cocrystal by screening various coformers. Methods: Cocrystals of piroxicam were prepared by dry grinding method. The melting point and solubility of crystalline phase was determined. The potential cocrystal was characterized by DSC, IR, XRPD. Other pharmaceutical properties like solubility and dissolution rate were also evaluated. Orodispersible tablets of piroxicam cocrystal were formulated, optimized and evaluated using 32 factorial design. Results: Cocrystals of piroxicam-sodium acetate revealed the variation in melting points and solubility. The cocrystals were obtained in 1:1 ratio with sodium acetate. The analysis of Infrared explicitly indicated the shifting of characteristic bands of piroxicam. The X-Ray Powder Diffraction pattern denoted the crystallinity of cocrystals and noteworthy difference in 2θ value of intense peaks. Differential scanning calorimetry spectra of cocrystals indicated altered endotherms corresponding to melting point. The pH solubility profile of piroxicam showed sigmoidal curve, which authenticated the pKa-dependent solubility. Piroxicam cocrystals also exhibited a similar pH-solubility profile. The cocrystals exhibited faster dissolution rate owing to cocrystallization as evident from 30% increase in the extent of dissolution. The orodispersible tablets of piroxicam cocrystals were successfully prepared by direct compression method using crosscarmelose sodium as superdisintegrant with improved disintegration time (30 sec) and dissolution rate. Conclusion: The piroxicam cocrystal with modified properties was prepared with sodium acetate and formulated as orodispersible tablets having faster disintegration and greater dissolution rate.
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Affiliation(s)
- Prabhakar Panzade
- Department of Pharmacognosy, Nanded Pharmacy College, Opp. Kasturba Matruseva Kendra, Shyam Nagar, Nanded, India
| | - Giridhar Shendarkar
- Department of Pharmacognosy, Nanded Pharmacy College, Opp. Kasturba Matruseva Kendra, Shyam Nagar, Nanded, India
| | - Sarfaraj Shaikh
- Department of Pharmaceutics, Shri Bhagwan College of Pharmacy, Dr. Y. S. khedkar Marg, CIDCO, Aurangabad, India
| | - Pavan Balmukund Rathi
- Department of Pharmaceutics, Shri Bhagwan College of Pharmacy, Dr. Y. S. khedkar Marg, CIDCO, Aurangabad, India
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25
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26
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Statistical process control of cocrystallization processes: A comparison between OPLS and PLS. Int J Pharm 2017; 520:29-38. [DOI: 10.1016/j.ijpharm.2017.01.052] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 01/11/2017] [Accepted: 01/26/2017] [Indexed: 11/18/2022]
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Ghadi R, Dand N. BCS class IV drugs: Highly notorious candidates for formulation development. J Control Release 2017; 248:71-95. [PMID: 28088572 DOI: 10.1016/j.jconrel.2017.01.014] [Citation(s) in RCA: 184] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 01/08/2017] [Indexed: 12/20/2022]
Abstract
BCS class IV drugs (e.g., amphotericin B, furosemide, acetazolamide, ritonavir, paclitaxel) exhibit many characteristics that are problematic for effective oral and per oral delivery. Some of the problems associated include low aqueous solubility, poor permeability, erratic and poor absorption, inter and intra subject variability and significant positive food effect which leads to low and variable bioavailability. Also, most of the class IV drugs are substrate for P-glycoprotein (low permeability) and substrate for CYP3A4 (extensive pre systemic metabolism) which further potentiates the problem of poor therapeutic potential of these drugs. A decade back, extreme examples of class IV compounds were an exception rather than the rule, yet today many drug candidates under development pipeline fall into this category. Formulation and development of an efficacious delivery system for BCS class IV drugs are herculean tasks for any formulator. The inherent hurdles posed by these drugs hamper their translation to actual market. The importance of the formulation composition and design to successful drug development is especially illustrated by the BCS class IV case. To be clinically effective these drugs require the development of a proper delivery system for both oral and per oral delivery. Ideal oral dosage forms should produce both a reasonably high bioavailability and low inter and intra subject variability in absorption. Also, ideal systems for BCS class IV should produce a therapeutic concentration of the drug at reasonable dose volumes for intravenous administration. This article highlights the various techniques and upcoming strategies which can be employed for the development of highly notorious BCS class IV drugs. Some of the techniques employed are lipid based delivery systems, polymer based nanocarriers, crystal engineering (nanocrystals and co-crystals), liquisolid technology, self-emulsifying solid dispersions and miscellaneous techniques addressing the P-gp efflux problem. The review also focuses on the roadblocks in the clinical development of the aforementioned strategies such as problems in scale up, manufacturing under cGMP guidelines, appropriate quality control tests, validation of various processes and variable therein etc. It also brings to forefront the current lack of regulatory guidelines which poses difficulties during preclinical and clinical testing for submission of NDA and subsequent marketing. Today, the pharmaceutical industry has as its disposal a series of reliable and scalable formulation strategies for BCS Class IV drugs. However, due to lack of understanding of the basic physical chemistry behind these strategies formulation development is still driven by trial and error.
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Affiliation(s)
- Rohan Ghadi
- IPDO, Innovation Plaza, Dr Reddy's Laboratories Ltd., Bachupally, Hyderabad, 500090, India.
| | - Neha Dand
- Department of Pharmaceutics, Bharati Vidyapeeth's College of Pharmacy, CBD Belapur, Navi Mumbai, 400064, India
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28
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Bhardwaj S, Lipert M, Bak A. Mitigating Cocrystal Physical Stability Liabilities in Preclinical Formulations. J Pharm Sci 2017; 106:31-38. [DOI: 10.1016/j.xphs.2016.07.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 07/20/2016] [Indexed: 02/02/2023]
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29
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Arafa MF, El-Gizawy SA, Osman MA, El Maghraby GM. Xylitol as a potential co-crystal co-former for enhancing dissolution rate of felodipine: preparation and evaluation of sublingual tablets. Pharm Dev Technol 2016; 23:454-463. [PMID: 27681386 DOI: 10.1080/10837450.2016.1242625] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Dissolution enhancement is a promising strategy for improving drug bioavailability. Co-crystallization of drugs with inert material can help in this direction. The benefit will become even greater if the inert material can form co-crystal while maintaining its main function as excipient. Accordingly, the objective of the current study was to investigate xylitol as a potential co-crystal co-former for felodipine with the goal of preparing felodipine sublingual tablets. Co-crystallization was achieved by wet co-grinding of the crystals deposited from methanolic solutions containing felodipine with increasing molar ratios of xylitol (1:1, 1:2 and 1:3). The developed co-crystals were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) before monitoring drug dissolution. These results reflected the development of new crystalline species depending on the relative proportions of felodipine and xylitol with complete co-crystallization of felodipine being achieved in the presence of double its molar concentration of xylitol. This co-crystal formulation was compressed into sublingual tablet with ultrashort disintegration time with subsequent fast dissolution. Co-crystal formation was associated with enhanced dissolution with the optimum formulation producing the fastest dissolution rate. In conclusion, xylitol can be considered as a co-crystal co-former for enhanced dissolution rate of drugs.
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Affiliation(s)
- Mona F Arafa
- a Department of pharmaceutical technology , college of pharmacy, university of Tanta , Tanta , Egypt
| | - Sanaa A El-Gizawy
- a Department of pharmaceutical technology , college of pharmacy, university of Tanta , Tanta , Egypt
| | - Mohamed A Osman
- a Department of pharmaceutical technology , college of pharmacy, university of Tanta , Tanta , Egypt
| | - Gamal M El Maghraby
- a Department of pharmaceutical technology , college of pharmacy, university of Tanta , Tanta , Egypt
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30
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Sanphui P, Rajput L, Gopi SP, Desiraju GR. New multi-component solid forms of anti-cancer drug Erlotinib: role of auxiliary interactions in determining a preferred conformation. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2016; 72:291-300. [PMID: 27240760 DOI: 10.1107/s2052520616003607] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 03/01/2016] [Indexed: 06/05/2023]
Abstract
Erlotinib is a BCS (biopharmaceutical classification system) class II drug used for the treatment of non-small cell lung cancer. There is an urgent need to obtain new solid forms of higher solubility to improve the bioavailability of the API (active pharmaceutical ingredient). In this context, cocrystals with urea, succinic acid, and glutaric acid and salts with maleic acid, adipic acid, and saccharin were prepared via wet granulation and solution crystallizations. Crystal structures of the free base (Z' = 2), cocrystals of erlotinib-urea (1:1), erlotinib-succinic acid monohydrate (1:1:1), erlotinib-glutaric acid monohydrate (1:1:1) and salts of erlotinib-adipic acid adipate (1:0.5:0.5) are determined and their hydrogen-bonding patterns are analyzed. Self recognition via the (amine) N-H...N (pyridine) hydrogen bond between the API molecules is replaced by several heterosynthons such as acid-pyridine, amide-pyridine and carboxylate-pyridinium in the new binary systems. Auxiliary interactions play an important role in determining the conformation of the API in the crystal. FT-IR spectroscopy is used to distinguish between the salts and cocrystals in the new multi-component systems. The new solid forms are characterized by powder X-ray diffraction (PXRD) and differential scanning calorimetry (DSC) to confirm their unique phase identity.
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Affiliation(s)
- Palash Sanphui
- Solid State and Structural Chemistry Unit, Indian Institute of Science, C. V. Raman Avenue, Bangalore, Karnatakla 560012, India
| | - Lalit Rajput
- Solid State and Structural Chemistry Unit, Indian Institute of Science, C. V. Raman Avenue, Bangalore, Karnatakla 560012, India
| | - Shanmukha Prasad Gopi
- Solid State and Structural Chemistry Unit, Indian Institute of Science, C. V. Raman Avenue, Bangalore, Karnatakla 560012, India
| | - Gautam R Desiraju
- Solid State and Structural Chemistry Unit, Indian Institute of Science, C. V. Raman Avenue, Bangalore, Karnatakla 560012, India
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31
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Gelbrich T, Braun DE, Griesser UJ. Specific energy contributions from competing hydrogen-bonded structures in six polymorphs of phenobarbital. Chem Cent J 2016; 10:8. [PMID: 26909105 PMCID: PMC4763432 DOI: 10.1186/s13065-016-0152-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 01/21/2016] [Indexed: 12/03/2022] Open
Abstract
Background In solid state structures of organic molecules, identical sets of H-bond donor and acceptor functions can result in a range of distinct H-bond connectivity modes. Specifically, competing H-bond structures (HBSs) may differ in the quantitative proportion between one-point and multiple-point H-bond connections. For an assessment of such HBSs, the effects of their internal as well as external (packing) interactions need to be taken into consideration. The semi-classical density sums (SCDS-PIXEL) method, which enables the calculation of interaction energies for molecule–molecule pairs, was used to investigate six polymorphs of phenobarbital (Pbtl) with different quantitative proportions of one-point and two-point H-bond connections. Results The structures of polymorphs V and VI of Pbtl were determined from single crystal data. Two-point H-bond connections are inherently inflexible in their geometry and lie within a small PIXEL energy range (−45.7 to −49.7 kJ mol−1). One-point H-bond connections are geometrically less restricted and subsequently show large variations in their dispersion terms and total energies (−23.1 to −40.5 kJ mol−1). The comparison of sums of interaction energies in small clusters containing only the strongest intermolecular interactions showed an advantage for compact HBSs with multiple-point connections, whereas alternative HBSs based on one-point connections may enable more favourable overall packing interactions (i.e. V vs. III). Energy penalties associated with experimental intramolecular geometries relative to the global conformational energy minimum were calculated and used to correct total PIXEL energies. The estimated order of stabilities (based on PIXEL energies) is III > I > II > VI > X > V, with a difference of just 1.7 kJ mol−1 between the three most stable forms. Conclusions For an analysis of competing HBSs, one has to consider the contributions from internal H-bond and non-H-bond interactions, from the packing of multiple HBS instances and intramolecular energy penalties. A compact HBS based on multiple-point H-bond connections should typically lead to more packing alternatives and ultimately to a larger number of viable low-energy structures than a competing one-point HBS (i.e. dimer vs. catemer). Coulombic interaction energies associated with typical short intermolecular C–H···O contact geometries are small in comparison with dispersion effects associated with the packing complementary molecular shapes.Competing H-bond motifs can differ markedly in their energy contributions ![]() Electronic supplementary material The online version of this article (doi:10.1186/s13065-016-0152-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Thomas Gelbrich
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Doris E Braun
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Ulrich J Griesser
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
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Arafa MF, El-Gizawy SA, Osman MA, El Maghraby GM. Sucralose as co-crystal co-former for hydrochlorothiazide: development of oral disintegrating tablets. Drug Dev Ind Pharm 2015; 42:1225-33. [DOI: 10.3109/03639045.2015.1118495] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Mona F. Arafa
- Department of Pharmaceutical Technology, College of Pharmacy, University of Tanta, Tanta, Egypt
| | - Sanaa A. El-Gizawy
- Department of Pharmaceutical Technology, College of Pharmacy, University of Tanta, Tanta, Egypt
| | - Mohamed A. Osman
- Department of Pharmaceutical Technology, College of Pharmacy, University of Tanta, Tanta, Egypt
| | - Gamal M. El Maghraby
- Department of Pharmaceutical Technology, College of Pharmacy, University of Tanta, Tanta, Egypt
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Bolla G, Mittapalli S, Nangia A. Modularity and three-dimensional isostructurality of novel synthons in sulfonamide-lactam cocrystals. IUCRJ 2015; 2:389-401. [PMID: 26175899 PMCID: PMC4491311 DOI: 10.1107/s2052252515004960] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 03/11/2015] [Indexed: 05/22/2023]
Abstract
The design of novel supramolecular synthons for functional groups relevant to drugs is an essential prerequisite for applying crystal engineering in the development of novel pharmaceutical cocrystals. It has been convincingly shown over the past decade that molecular level control and modulation can influence the physicochemical properties of drug cocrystals. Whereas considerable advances have been reported on the design of cocrystals for carboxylic acids and carboxamide functional groups, the sulfonamide group, which is a cornerstone of sulfa drugs, is relatively unexplored for reproducible heterosynthon-directed crystal engineering. The occurrence of synthons and isostructurality in sulfonamide-lactam cocrystals (SO2NH2⋯CONH hydrogen bonding) is analyzed to define a strategy for amide-type GRAS (generally recognized as safe) coformers with sulfonamides. Three types of supramolecular synthons are identified for the N-H donor of sulfonamide hydrogen bonding to the C=O acceptor of amide. Synthon 1: catemer synthon C 2 (1)(4) chain motif, synthon 2: dimer-cyclic ring synthon R 2 (2)(8)R 4 (2)(8) motifs, and synthon 3: dimer-catemer synthon of R 2 (2)(8)C 1 (1)(4)D notation. These heterosynthons of the cocrystals observed in this study are compared with the N-H⋯O dimer R 2 (2)(8) ring and C(4) chain motifs of the individual sulfonamide structures. The X-ray crystal structures of sulfonamide-lactam cocrystals exhibit interesting isostructurality trends with the same synthon being present. One-dimensional, two-dimensional and three-dimensional isostructurality in crystal structures is associated with isosynthons and due to their recurrence, novel heterosynthons for sulfonamide cocrystals are added to the crystal engineer's toolkit. With the predominance of sulfa drugs in medicine, these new synthons provide rational strategies for the design of binary and potentially ternary cocrystals of sulfonamides.
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Affiliation(s)
- Geetha Bolla
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Central University PO, Hyderabad, 500 046, India
| | - Sudhir Mittapalli
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Central University PO, Hyderabad, 500 046, India
| | - Ashwini Nangia
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Central University PO, Hyderabad, 500 046, India
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Ferreira AK, Tavares MT, Pasqualoto KFM, de Azevedo RA, Teixeira SF, Ferreira-Junior WA, Bertin AM, de-Sá-Junior PL, Barbuto JAM, Figueiredo CR, Cury Y, Damião MCFCB, Parise-Filho R. RPF151, a novel capsaicin-like analogue: in vitro studies and in vivo preclinical antitumor evaluation in a breast cancer model. Tumour Biol 2015; 36:7251-67. [DOI: 10.1007/s13277-015-3441-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 02/11/2015] [Indexed: 12/01/2022] Open
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Development, characterization, and pharmacodynamic evaluation of hydrochlorothiazide loaded self-nanoemulsifying drug delivery systems. ScientificWorldJournal 2014; 2014:274823. [PMID: 25580455 PMCID: PMC4280499 DOI: 10.1155/2014/274823] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/27/2014] [Accepted: 10/28/2014] [Indexed: 11/17/2022] Open
Abstract
The objective of the current work was to develop optimized self-nanoemulsifying drug delivery systems (SNEDDS) and evaluate their in vitro and in vivo performance. The research comprised various studies which includes solubility studies in various vehicles, pseudoternary phase diagram construction, and preparation and characterization of SNEDDS along with in vitro dissolution and in vivo pharmacodynamic profiling. Based on dissolution profile, a remarkable increase in rate of dissolution was observed in comparison with plain drug and marketed formulation. Optimized SNEDDS formulation was composed of Capmul MCM (19.17% w/w), Tween 80 (57.5% w/w), Transcutol P (12.7% w/w), and HCT (4.17% w/w). In vivo pharmacodynamic evaluation in Wistar rats showed considerable increase in pharmacological effect of HCT by SNEDDS formulation as compared with plain HCT.
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36
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Sowa M, Ślepokura K, Matczak-Jon E. Improving solubility of fisetin by cocrystallization. CrystEngComm 2014. [DOI: 10.1039/c4ce01713g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Wang JR, Ye C, Mei X. Structural and physicochemical aspects of hydrochlorothiazide co-crystals. CrystEngComm 2014. [DOI: 10.1039/c4ce00666f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The drug–drug co-crystal of hydrochlorothiazide with pyrazinamide is a potential candidate for development of hydrochlorothiazide formulations for combinational therapy.
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Affiliation(s)
- Jian-Rong Wang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203, China
| | - Chanjuan Ye
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203, China
| | - Xuefeng Mei
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203, China
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