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Aitipamula S, Bolla G. Optimizing Drug Development: Harnessing the Sustainability of Pharmaceutical Cocrystals. Mol Pharm 2024; 21:3121-3143. [PMID: 38814314 DOI: 10.1021/acs.molpharmaceut.4c00289] [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] [Indexed: 05/31/2024]
Abstract
Environmental impacts of the industrial revolution necessitate adoption of sustainable practices in all areas of development. The pharmaceutical industry faces increasing pressure to minimize its ecological footprint due to its significant contribution to environmental pollution. Over the past two decades, pharmaceutical cocrystals have received immense popularity due to their ability to optimize the critical attributes of active pharmaceutical ingredients and presented an avenue to bring improved drug products to the market. This review explores the potential of pharmaceutical cocrystals as an ecofriendly alternative to traditional solid forms, offering a sustainable approach to drug development. From reducing the number of required doses to improving the stability of actives, from eliminating synthetic operations to using pharmaceutically approved chemicals, from the use of continuous and solvent-free manufacturing methods to leveraging published data on the safety and toxicology, the cocrystallization approach contributes to sustainability of drug development. The latest trends suggest a promising role of pharmaceutical cocrystals in bringing novel and improved medicines to the market, which has been further fuelled by the recent guidance from the major regulatory agencies.
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Affiliation(s)
- Srinivasulu Aitipamula
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore
| | - Geetha Bolla
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
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2
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Rode K, Maji I, Mahajan S, Singh PK. Unlocking the potential of flavonoid-based co-crystal and co-amorphous systems. Drug Discov Today 2024; 29:104050. [PMID: 38830502 DOI: 10.1016/j.drudis.2024.104050] [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: 03/11/2024] [Revised: 05/15/2024] [Accepted: 05/29/2024] [Indexed: 06/05/2024]
Abstract
Flavonoids are polyphenolic compounds that have multiple benefits in treating various life-threatening diseases. Despite their diverse pharmacological activities, the market potential of flavonoids is hampered due to their poor solubility and low bioavailability after oral administration. The current review highlights the role of co-crystals and co-amorphous systems (CAMs) in enhancing the solubility, permeability, bioavailability, and therapeutic efficacy of flavonoids. It also explains the significance of flavonoid-based co-formers in the formation of co-crystals and CAMs with other APIs to improve their efficacy. Future perspectives, patented formulations, commercial medications (including their phases of clinical trials), and challenges associated with the use of flavonoid-based co-crystals and CAMs are also mentioned in the review.
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Affiliation(s)
- Khushi Rode
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana 500037, India
| | - Indrani Maji
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana 500037, India
| | - Srushti Mahajan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana 500037, India
| | - Pankaj Kumar Singh
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana 500037, India.
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Guidetti M, Hilfiker R, Kuentz M, Bauer-Brandl A, Blatter F. Water-mediated phase transformations of posaconazole: An intricate jungle of crystal forms. Eur J Pharm Sci 2024; 195:106722. [PMID: 38336250 DOI: 10.1016/j.ejps.2024.106722] [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: 11/16/2023] [Revised: 01/20/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
Posaconazole is a broad-spectrum antifungal agent exhibiting rich polymorphism. Up to now, a total of fourteen different crystal forms have been reported, sometimes with an ambiguous nomenclature, but less is known about their properties and stability relationships. Investigating the solid-state of a drug compound is essential to identify the most stable form under working conditions and to prevent the risk of undesired solid-phase transformations under processing and storage. In this paper, we study posaconazole polymorphism by providing a description of its polymorphs, hydrates, and solvates. Powder X-ray diffraction (PXRD), dynamic vapor sorption (DVS), spectroscopic and thermal techniques were employed to characterize the different forms. In addition, the solid-phase transformations of posaconazole in aqueous suspensions were studied by means of Raman microscopy. Surprisingly, we found that Form S, the crystal form contained in the marketed oral suspension, is not the most stable form in water. Form S readily converts to a more stable hydrate, i.e. Form A, after storage in water for two weeks. In the commercial oral formulation the conversion between the two forms is prevented by the presence of polysorbate 80. Such insights into the stabilizing excipient effects beyond particle dispersion are critical to formulators.
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Affiliation(s)
- Matteo Guidetti
- Solvias AG, Solid-State Development Department, Römerpark 2, Kaiseraugst CH- 4303, Switzerland; Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, Odense 5230, Denmark
| | - Rolf Hilfiker
- Solvias AG, Solid-State Development Department, Römerpark 2, Kaiseraugst CH- 4303, Switzerland
| | - Martin Kuentz
- University of Applied Sciences and Arts Northwestern Switzerland, Institute of Pharma Technology, Muttenz CH- 4132, Switzerland
| | - Annette Bauer-Brandl
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, Odense 5230, Denmark
| | - Fritz Blatter
- Solvias AG, Solid-State Development Department, Römerpark 2, Kaiseraugst CH- 4303, Switzerland.
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Shen H, Pan L, Ning K, Fang Y, Muhitdinov B, Liu E, Huang Y. Asiatic acid cyclodextrin inclusion micro-cocrystal for insoluble drug delivery and acute lung injury therapy enhancement. J Nanobiotechnology 2024; 22:119. [PMID: 38494523 PMCID: PMC10946140 DOI: 10.1186/s12951-024-02387-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/07/2024] [Indexed: 03/19/2024] Open
Abstract
BACKGROUND Acute lung injury (ALI) is a fatal respiratory disease caused by overreactive immune reactions (e.g., SARS-CoV-2 infection), with a high mortality rate. Its treatment is often compromised by inefficient drug delivery barriers and insufficient potency of the currently used drugs. Therefore, developing a highly effective lung-targeted drug delivery strategy is a pressing clinical need. RESULTS In this study, the micro-sized inclusion cocrystal of asiatic acid/γ-cyclodextrin (AA/γCD, with a stoichiometry molar ratio of 2:3 and a mean size of 1.8 μm) was prepared for ALI treatment. The dissolution behavior of the AA/γCD inclusion cocrystals followed a "spring-and-hover" model, which meaned that AA/γCD could dissolve from the cocrystal in an inclusion complex form, thereby promoting a significantly improved water solubility (nine times higher than free AA). This made the cyclodextrin-based inclusion cocrystals an effective solid form for enhanced drug absorption and delivery efficiency. The biodistribution experiments demonstrated AA/γCD accumulated predominantly in the lung (Cmax = 50 µg/g) after systemic administration due to the micron size-mediated passive targeting effect. The AA/γCD group showed an enhanced anti-inflammatory therapeutic effect, as evidenced by reduced levels of pro-inflammatory cytokines in the lung and bronchoalveolar lavage fluids (BALF). Histological examination confirmed that AA/γCD effectively inhibited inflammation reactions. CONCLUSION The micro-sized inclusion cocrystals AA/γCD were successfully delivered into the lungs by pulmonary administration and had a significant therapeutic effect on ALI.
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Affiliation(s)
- Huan Shen
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, China
- State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Li Pan
- School of Pharmacy, Zunyi Medical University, Zunyi, 563003, China
| | - Keke Ning
- School of Pharmacy, Zunyi Medical University, Zunyi, 563003, China
| | - Yuefei Fang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, China
| | - Bahtiyor Muhitdinov
- Institute of Bioorganic Chemistry, Uzbekistan Academy of Sciences, 83 M. Ulughbek Street, Tashkent, 100125, Uzbekistan
| | - Ergang Liu
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, China.
| | - Yongzhuo Huang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, China.
- State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai, 201203, China.
- School of Pharmacy, Zunyi Medical University, Zunyi, 563003, China.
- NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients, Shanghai, 201203, China.
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Oyama S, Ogawa N, Kawai K, Iwai K, Yasunaga T, Yamamoto H. Improved Dissolution Properties of Co-amorphous Probucol with Atorvastatin Calcium Trihydrate Prepared by Spray-Drying. Chem Pharm Bull (Tokyo) 2024; 72:190-199. [PMID: 38369345 DOI: 10.1248/cpb.c23-00673] [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] [Indexed: 02/20/2024]
Abstract
A co-amorphous model drug was prepared by the spray-drying (SD) of probucol (PC) and atorvastatin calcium trihydrate salt (ATO) as low water solubility and co-former components, respectively. The physicochemical properties of the prepared samples were characterized by powder X-ray diffraction (PXRD) analysis, thermal analysis, Fourier transform infrared spectroscopy (FTIR), and dissolution tests. Stability tests were also conducted under a stress environment of 40 °C and 75% relative humidity. The results of PXRD measurements and thermal analysis suggested that PC and ATO form a co-amorphous system by SD. Thermal analysis also indicated an endothermic peak that followed an exotherm in amorphous PC and a physical mixture (PM) of amorphous PC and ATO; however, no endothermic peak was detected in the co-amorphous system. The dissolution profiles for PC in the co-amorphous sample composed of PC and ATO were improved compared to those for raw PC crystals or the PM. Stability tests indicated that the co-amorphous material formed by PC and ATO can be stored for 35 d without crystallization, whereas amorphous PC became crystallized within a day. Therefore, co-amorphization of PC and ATO prepared by SD is considered to be a useful method to improve the solubility of PC in water.
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Affiliation(s)
- Shinji Oyama
- Department of Pharmaceutical Engineering, School of Pharmacy, Aichi Gakuin University
| | - Noriko Ogawa
- Department of Pharmaceutical Engineering, School of Pharmacy, Aichi Gakuin University
| | - Kaori Kawai
- Department of Pharmaceutical Engineering, School of Pharmacy, Aichi Gakuin University
| | - Kanako Iwai
- Department of Pharmaceutical Engineering, School of Pharmacy, Aichi Gakuin University
| | - Toshiya Yasunaga
- Department of Pharmaceutical Engineering, School of Pharmacy, Aichi Gakuin University
| | - Hiromitsu Yamamoto
- Department of Pharmaceutical Engineering, School of Pharmacy, Aichi Gakuin University
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Zupančič O, Kushwah V, Paudel A. Pancreatic lipase digestion: The forgotten barrier in oral administration of lipid-based delivery systems? J Control Release 2023; 362:381-395. [PMID: 37579977 DOI: 10.1016/j.jconrel.2023.08.024] [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: 04/11/2023] [Revised: 07/20/2023] [Accepted: 08/11/2023] [Indexed: 08/16/2023]
Abstract
This review highlights the importance of controlling the digestion process of orally administered lipid-based delivery systems (LBDS) and their performance. Oral LBDS are prone to digestion via pancreatic lipase in the small intestine. Rapid or uncontrolled digestion may cause the loss of delivery system integrity, its structural changes, reduced solubilization capacity and physical stability issues. All these events can lead to uncontrolled drug release from the digested LBDS into the gastrointestinal environment, exposing the incorporated drug to precipitation or degradation by luminal proteases. To prevent this, the digestion rate of orally administered LBDS can be estimated by appropriate choice of the formulation type, excipient combinations and their ratios. In addition, in vitro digestion models like pH-stat are useful tools to evaluate the formulation digestion rate. Controlling digestion can be achieved by conventional lipase inhibitors like orlistat, sterically hindering of lipase adsorption on the delivery system surface with polyethylene glycol (PEG) chains, lipase desorption or saturation of the interface with surfactants as well as formulating LBDS with ester-free excipients. Recent in vivo studies demonstrated that digestion inhibition lead to altered pharmacokinetic profiles, where Cmax and Tmax were reduced in spite of same AUC compared to control or even improved oral bioavailability.
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Affiliation(s)
- Ožbej Zupančič
- Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria
| | - Varun Kushwah
- Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria
| | - Amrit Paudel
- Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria; Graz University of Technology, Institute of Process and Particle Engineering, Inffeldgasse 13/3, 8010 Graz, Austria.
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Abramov YA, Iuzzolino L, Jin Y, York G, Chen CH, Shultz CS, Yang Z, Chang C, Shi B, Zhou T, Greenwell C, Sekharan S, Lee AY. Cocrystal Synthesis through Crystal Structure Prediction. Mol Pharm 2023. [PMID: 37279175 DOI: 10.1021/acs.molpharmaceut.2c01098] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Crystal structure prediction (CSP) is an invaluable tool in the pharmaceutical industry because it allows to predict all the possible crystalline solid forms of small-molecule active pharmaceutical ingredients. We have used a CSP-based cocrystal prediction method to rank ten potential cocrystal coformers by the energy of the cocrystallization reaction with an antiviral drug candidate, MK-8876, and a triol process intermediate, 2-ethynylglyclerol. For MK-8876, the CSP-based cocrystal prediction was performed retrospectively and successfully predicted the maleic acid cocrystal as the most likely cocrystal to be observed. The triol is known to form two different cocrystals with 1,4-diazabicyclo[2.2.2]octane (DABCO), but a larger solid form landscape was desired. CSP-based cocrystal screening predicted the triol-DABCO cocrystal as rank one, while a triol-l-proline cocrystal was predicted as rank two. Computational finite-temperature corrections enabled determination of relative crystallization propensities of the triol-DABCO cocrystals with different stoichiometries and prediction of the triol-l-proline polymorphs in the free-energy landscape. The triol-l-proline cocrystal was obtained during subsequent targeted cocrystallization experiments and was found to exhibit an improved melting point and deliquescence behavior over the triol-free acid, which could be considered as an alternative solid form in the synthesis of islatravir.
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Affiliation(s)
- Yuriy A Abramov
- XtalPi Inc., 245 Main Street, Cambridge, Massachusetts 02142, United States
- Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Luca Iuzzolino
- Computational and Structural Chemistry, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Yingdi Jin
- XtalPi, Inc., Shenzhen Jingtai Technology Co., Ltd., Futian District, Shenzhen 518100, China
| | - Gregory York
- Analytical Research and Development, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Chien-Hung Chen
- Analytical Research and Development, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - C Scott Shultz
- Analytical Research and Development, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Zhuocen Yang
- XtalPi, Inc., Shenzhen Jingtai Technology Co., Ltd., Futian District, Shenzhen 518100, China
| | - Chao Chang
- XtalPi, Inc., Shenzhen Jingtai Technology Co., Ltd., Futian District, Shenzhen 518100, China
| | - Baimei Shi
- XtalPi, Inc., Shenzhen Jingtai Technology Co., Ltd., Futian District, Shenzhen 518100, China
| | - Tian Zhou
- XtalPi, Inc., Shenzhen Jingtai Technology Co., Ltd., Futian District, Shenzhen 518100, China
| | - Chandler Greenwell
- XtalPi Inc., 245 Main Street, Cambridge, Massachusetts 02142, United States
| | - Sivakumar Sekharan
- XtalPi Inc., 245 Main Street, Cambridge, Massachusetts 02142, United States
| | - Alfred Y Lee
- Analytical Research and Development, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
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Wdowiak K, Pietrzak R, Tykarska E, Cielecka-Piontek J. Hot-Melt Extrusion as an Effective Technique for Obtaining an Amorphous System of Curcumin and Piperine with Improved Properties Essential for Their Better Biological Activities. Molecules 2023; 28:molecules28093848. [PMID: 37175257 PMCID: PMC10180276 DOI: 10.3390/molecules28093848] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Poor bioavailability hampers the use of curcumin and piperine as biologically active agents. It can be improved by enhancing the solubility as well as by using bioenhancers to inhibit metabolic transformation processes. Obtaining an amorphous system of curcumin and piperine can lead to the overcoming of these limitations. Hot-melt extrusion successfully produced their amorphous systems, as shown by XRPD and DSC analyses. Additionally, the presence of intermolecular interactions between the components of the systems was investigated using the FT-IR/ATR technique. The systems were able to produce a supersaturation state as well as improve the apparent solubilities of curcumin and piperine by 9496- and 161-fold, respectively. The permeabilities of curcumin in the GIT and BBB PAMPA models increased by 12578- and 3069-fold, respectively, whereas piperine's were raised by 343- and 164-fold, respectively. Improved solubility had a positive effect on both antioxidant and anti-butyrylcholinesterase activities. The best system suppressed 96.97 ± 1.32% of DPPH radicals, and butyrylcholinesterase activity was inhibited by 98.52 ± 0.87%. In conclusion, amorphization remarkably increased the dissolution rate, apparent solubility, permeability, and biological activities of curcumin and piperine.
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Affiliation(s)
- Kamil Wdowiak
- Department of Pharmacognosy, Faculty of Pharmacy, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland
| | - Robert Pietrzak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznan, Poland
| | - Ewa Tykarska
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Judyta Cielecka-Piontek
- Department of Pharmacognosy, Faculty of Pharmacy, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland
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9
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Dissolution Profiles of Carbamazepine Cocrystals with Cis-Trans Isomeric Coformers. Pharm Res 2023; 40:579-591. [PMID: 35194718 DOI: 10.1007/s11095-022-03209-x] [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: 01/17/2022] [Accepted: 02/17/2022] [Indexed: 10/19/2022]
Abstract
PURPOSE The purpose of the present study was to investigate the dissolution profiles of cocrystals with cis-trans isomeric coformers. Previously, the carbamazepine (CBZ) cocrystals with even-carbon dicarboxylic acids showed higher supersaturation than those with odd-carbon ones, attributed to particle surface solution-mediated phase transformation (PS-SMPT) to CBZ dihydrate (CBZ DH). However, it has been unknown whether this odd-even pattern holds for cis-trans isomeric coformers. METHOD CBZ cocrystals with maleic acid (MLE) and fumaric acid (FUM) (CBZ-FUM anhydrate (CBZ-FUM AH) and monohydrate (CBZ-FUM H2O)) were employed as model cocrystals. Hydroxypropyl methylcellulose (HPMC), polyvinylpyrrolidone, and polyethylene glycol 6000 (PEG) were used as precipitation inhibitors. Dissolution tests were performed under a non-sink condition. Residual particles were analyzed by powder X-ray diffraction, differential scanning calorimetry, polarized light microscope, and scanning electron microscope. RESULTS All cocrystals showed little supersaturation in the absence of a polymer. In 0.1% HPMC, CBZ-FUM AH showed significant supersaturation, whereas CBZ-MLE and CBZ-FUM H2O did not for the first two hours. HPMC reduced the initial dissolution rate of CBZ-MLE and CBZ-FUM H2O while inducing the highest supersaturation among the polymers after 96 h. The particle surface changed from a smooth plane to a striped pattern, but little or no CBZ DH was detected. CONCLUSION The cocrystals with cis-trans isomeric coformers showed different dissolution profiles. HPMC increased the dissolution rate of CBZ-FUM AH by inhibiting PS-SMPT but reduced the dissolution rate of CBZ-MLE and CBZ-FUM H2O without inducing PS-SMPT. The striped pattern was suggested to be due to surface etching rather than PS-SMPT.
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10
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Almotairy A, Almutairi M, Althobaiti A, Alyahya M, Sarabu S, Zhang F, Bandari S, Ashour E, Repka MA. Investigation of hot melt extrusion process parameters on solubility and tabletability of atorvastatin calcium in presence of Neusilin ® US2. J Drug Deliv Sci Technol 2023; 79:104075. [PMID: 37811318 PMCID: PMC10557465 DOI: 10.1016/j.jddst.2022.104075] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Reports in the literature indicate that hot-melt extrusion (HME) processing techniques could alter the mechanical properties of the pharmaceutical physical blend, which may alter successful processing during tableting. The aim of this study was to evaluate whether HME processing conditions have an impact on the tabletability of Atorvastatin calcium trihydrate (ATR) in the presence of Neusilin® US2 (NUS2). ATR drug load of 25% was mixed with 75% of NUS2 and extruded using two screw configurations, screw speeds, and feed rates. Solid-state thermal analysis showed that ATR transformed to an amorphous form which led to improved solubility. ATR tabletability was affected positively by screw configuration that had no shearing and mixing force. SEM analysis indicated that a conveying screw configuration preserved the spherical nature of NUS2, thus improving ATR tabletability. This novel study demonstrates the significance of changing and monitoring the HME process parameters, which impact the materials' mechanical properties and may prevent adverse outcomes during tableting.
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Affiliation(s)
- Ahmed Almotairy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Pharmaceutics and Pharmaceutical Technology Department, College of Pharmacy Taibah University, Al Madinah AlMunawarah 30001, Saudi Arabia
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail, 81442, Saudi Arabia
| | - Abdulmajeed Althobaiti
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Mohammed Alyahya
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Feng Zhang
- College of Pharmacy, The University of Texas at Austin, TX, 78712, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Eman Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Michael A. Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA
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11
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Meng Y, Tan F, Yao J, Cui Y, Feng Y, Li Z, Wang Y, Yang Y, Gong W, Yang M, Kong X, Gao C. Preparation, characterization, and pharmacokinetics of rivaroxaban cocrystals with enhanced in vitro and in vivo properties in beagle dogs. Int J Pharm X 2022; 4:100119. [PMID: 35663355 PMCID: PMC9160491 DOI: 10.1016/j.ijpx.2022.100119] [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: 02/10/2022] [Revised: 05/04/2022] [Accepted: 05/19/2022] [Indexed: 11/18/2022] Open
Abstract
Rivaroxaban (RIV) is a direct Factor Xa inhibitor anticoagulant, but the oral bioavailability of RIV is estimated to be only 60% due to its poor solubility. The aim of the present study was to improve the solubility and bioavailability of RIV. Five cocrystals—p-hydroxybenzoic acid (HBA), 2,4-dihydroxybenzoic acid (DBA), nicotinamide (NA), isonicotinamide (IA), and succinic acid (SA)—were used as cofomers and were successfully obtained and characterized by powder X-ray diffraction, thermal analysis, and Fourier transform infrared spectra. RIV-DBA and RIV-HBA cocrystals showed obvious improvements in solubility, dissolution (under sink conditions), and intrinsic dissolution rates versus RIV. Moreover, the dissolution of RIV-HBA, RIV-DBA, and RIV-SA cocrystals under non-sink conditions showed obvious “spring and parachute” patterns. The in vitro permeability levels in a Caco-2 cell model of RIV-DBA and RIV-IA cocrystals were significantly improved versus RIV. Pharmacokinetic studies in beagle dogs showed that RIV-DBA and RIV-HBA cocrystals had higher bioavailability than RIV. The enhancements in solubility and bioavailability indicate the potential of RIV cocrystals as a better candidate for the treatment of thrombosis versus RIV.
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Budiman A, Nurfadilah N, Muchtaridi M, Sriwidodo S, Aulifa DL, Rusdin A. The Impact of Water-Soluble Chitosan on the Inhibition of Crystal Nucleation of Alpha-Mangostin from Supersaturated Solutions. Polymers (Basel) 2022; 14:polym14204370. [PMID: 36297947 PMCID: PMC9610582 DOI: 10.3390/polym14204370] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022] Open
Abstract
The use of an amorphous drugs system to generate supersaturated solutions is generally developed to improve the solubility and dissolution of poorly soluble drugs. This is because the drug in the supersaturation system has a high energy state with a tendency to precipitate. In the amorphous solid dispersion (ASD) formulation, it was discovered that polymer plays a critical role in inhibiting nucleation or crystal growth of the drugs. Therefore, this study aimed to evaluate the crystallization inhibition of water-soluble chitosan (WSC) on nucleation as well as crystal growth from alpha-mangostin (AM) and elucidate its inhibition mechanism in the supersaturated solutions. During the experiment, WSC was used as a polymer to evaluate its ability to inhibit AM nucleation. The interaction between WSC and AM was also estimated using FT-IR, NMR, and in silico study. The result showed that in the absence of polymer, the concentration of AM rapidly decreased due to the precipitation in one minute. Meanwhile, the addition of WSC effectively inhibited AM crystallization and maintained a supersaturated state for the long term. FT-IR measurement also revealed that the shift in the amine primer of WSC occurred because of the interaction between WSC and AM. In the 1H NMR spectra, the proton peaks of WSC showed an upfield shift with the presence of AM, indicating the intermolecular interactions between AM and WSC. Moreover, in silico study revealed the hydrogen bond interaction between the carbonyl group of AM with hydrocarbon groups of WSC. This indicated that WSC interacted with AM in the supersaturated solution and suppressed their molecular mobility, thereby inhibiting the formation of the crystal nucleus. Based on these results, it can be concluded that the interaction between drug polymers contributed to the maintenance of the drug supersaturation by inhibiting both nucleation and growth.
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Affiliation(s)
- Arif Budiman
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
- Correspondence:
| | - Nisrina Nurfadilah
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
| | - Muchtaridi Muchtaridi
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
| | - Sriwidodo Sriwidodo
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
| | - Diah Lia Aulifa
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
| | - Agus Rusdin
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
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13
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An Artificial Gut/Absorption Simulator: Simultaneous Evaluation of Desupersaturation and Absorption from Ketoconazole Supersaturated Solutions. J Pharm Sci 2022:S0022-3549(22)00418-X. [PMID: 36162494 DOI: 10.1016/j.xphs.2022.09.017] [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: 07/07/2022] [Revised: 09/15/2022] [Accepted: 09/15/2022] [Indexed: 10/14/2022]
Abstract
For supersaturating formulations of BCS-II compounds, which by definition have high intestinal permeability, a closed USP apparatus does not provide the necessary absorptive conditions during dissolution. To address this, an artificial gut simulator (AGS) has been constructed consisting of a 2.5 mL donor compartment in which a hollow fiber-based absorption module is suspended. Drug from donor diffuses across the hollow fiber membrane to be absorbed by the continuously flowing intraluminal receiver fluid. The membrane surface area and intraluminal fluid flow rate are tuned to obtain the physiologically observed absorption rate constant for a weakly basic, poorly water-soluble model compound, ketoconazole (KTZ). Supersaturated solutions of KTZ were generated in the donor in pH 6.5 phosphate buffer by the pH-shift method in the absence (closed system, control) and presence (open system, biorelevant) of an optimally or suboptimally tuned absorption module. Drug concentrations in the donor and intraluminal fluids were determined by in-line UV spectroscopy. The presence of an absorptive sink reduced the supersaturated solution's crystallization propensity, more so in the case of the optimally tuned AGS. This study demonstrates the significance of simulating absorption of drug at a physiological rate during dissolution studies, especially to predict the performance of formulations of BCS-II drugs.
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14
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Bolla G, Sarma B, Nangia AK. Crystal Engineering of Pharmaceutical Cocrystals in the Discovery and Development of Improved Drugs. Chem Rev 2022; 122:11514-11603. [PMID: 35642550 DOI: 10.1021/acs.chemrev.1c00987] [Citation(s) in RCA: 80] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The subject of crystal engineering started in the 1970s with the study of topochemical reactions in the solid state. A broad chemical definition of crystal engineering was published in 1989, and the supramolecular synthon concept was proposed in 1995 followed by heterosynthons and their potential applications for the design of pharmaceutical cocrystals in 2004. This review traces the development of supramolecular synthons as robust and recurring hydrogen bond patterns for the design and construction of supramolecular architectures, notably, pharmaceutical cocrystals beginning in the early 2000s to the present time. The ability of a cocrystal between an active pharmaceutical ingredient (API) and a pharmaceutically acceptable coformer to systematically tune the physicochemical properties of a drug (i.e., solubility, permeability, hydration, color, compaction, tableting, bioavailability) without changing its molecular structure is the hallmark of the pharmaceutical cocrystals platform, as a bridge between drug discovery and pharmaceutical development. With the design of cocrystals via heterosynthons and prototype case studies to improve drug solubility in place (2000-2015), the period between 2015 to the present time has witnessed the launch of several salt-cocrystal drugs with improved efficacy and high bioavailability. This review on the design, synthesis, and applications of pharmaceutical cocrystals to afford improved drug products and drug substances will interest researchers in crystal engineering, supramolecular chemistry, medicinal chemistry, process development, and pharmaceutical and materials sciences. The scale-up of drug cocrystals and salts using continuous manufacturing technologies provides high-value pharmaceuticals with economic and environmental benefits.
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Affiliation(s)
- Geetha Bolla
- Department of Chemistry, Ben-Gurion University of the Negev, Building 43, Room 201, Sderot Ben-Gurion 1, Be'er Sheva 8410501, Israel
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, Assam 784028, India
| | - Ashwini K Nangia
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, India
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15
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Huang Z, Staufenbiel S, Bodmeier R. Combination of co-crystal and nanocrystal techniques to improve the solubility and dissolution rate of poorly soluble drugs. Pharm Res 2022; 39:949-961. [PMID: 35552985 PMCID: PMC9160134 DOI: 10.1007/s11095-022-03243-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 03/21/2022] [Indexed: 11/24/2022]
Abstract
Purpose Solubility and dissolution rate are essential for the oral absorption and bioavailability of poorly soluble drugs. The aim of this study was to prepare nano-co-crystals by combination of nanocrystal and co-crystal technologies, and investigate its effect, in situ, on increased kinetic solubility and dissolution rate. Methods Co-crystals of itraconazole-fumaric acid, itraconazole-succinic acid, indomethacin-saccharin and indomethacin-nicotinamide were prepared and nano-sized by wet milling. The particle size and solid state of the co-crystals were characterized by optical microscope, LD, PCS, DSC and XRPD before and after milling. Results 300-450 nm sized nano-co-crystals with a stable physical solid state were successfully prepared. Nano-co-crystals exhibited a lower crystallinity reduction than nanocrystals after wet milling. The particle size effect on the kinetic solubility of co-crystals was analysed for macro-, micro- and nano-co-crystals with in situ kinetic solubility studies. The maximum kinetic solubility of nano-co-crystals increased with excess conditions until a plateau. The highest increase was obtained with itraconazole-succinic acid nano-co-crystals with a kinetic solubility of 263.5 ± 3.9 μg/mL which was 51.5 and 6.6 times higher than the solubility of raw itraconazole and itraconazole-succinic acid co-crystal. Conclusions The synergistic effect of nanocrystals and co-crystals with regard to increased kinetic solubility and dissolution rate was proven. The combination of the advantages of nanocrystals and co-crystals is a promising formulation strategy to increase both the solubility and dissolution rate of poorly soluble drugs. Supplementary Information The online version contains supplementary material available at 10.1007/s11095-022-03243-9.
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Affiliation(s)
- Zun Huang
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, 12169, Berlin, Germany
| | - Sven Staufenbiel
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, 12169, Berlin, Germany
| | - Roland Bodmeier
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, 12169, Berlin, Germany.
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16
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Al-Badr AA. Danazol. PROFILES OF DRUG SUBSTANCES, EXCIPIENTS, AND RELATED METHODOLOGY 2022; 47:149-326. [PMID: 35396014 DOI: 10.1016/bs.podrm.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A comprehensive profile of danazol describing the nomenclatures, formulae, elemental composition, appearance, uses and applications is presented. The profile contains the method which was utilized for the preparation of the drug substance and its respective scheme is outlined. The physical characteristics of the drug including the solubility, X-ray powder diffraction pattern, differential scanning calorimetry, thermal behavior and spectroscopic studies are described. The methods which were used for the analysis of the drug substance in bulk drug and/or in pharmaceutical formulations including the compendial, spectrophotometric, electrochemical and the chromatographic methods are reported. The stability, toxicity, pharmacokinetics, bioavailability, drug evaluation and monitoring, comparisons, pharmacology, in addition to several compiled reviews on the drug substance which were involved. Finally, two hundred and seventy-nine references are listed at the end of this profile.
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Affiliation(s)
- Abdullah A Al-Badr
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia
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17
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Van Duong T, Ni Z, Taylor LS. Phase Behavior and Crystallization Kinetics of a Poorly Water-Soluble Weakly Basic Drug as a Function of Supersaturation and Media Composition. Mol Pharm 2022; 19:1146-1159. [PMID: 35319221 DOI: 10.1021/acs.molpharmaceut.1c00927] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Understanding the supersaturation and precipitation behavior of poorly water-soluble compounds in vivo and the impact on oral absorption is critical to design consistently performing products with optimized bioavailability. Weakly basic compounds are of particular importance in this context since they have an inherent tendency to undergo supersaturation in vivo upon exit from the stomach and entry into the small intestine because of their pH-dependent solubility. To understand and probe potential in vivo variability of supersaturating systems, rigorous understanding of compound physical properties and phase behavior landscape is essential. Herein, we extensively characterize the solution phase behavior of a model, poorly soluble and weakly basic compound, posaconazole. Phase boundaries for crystal-solution and amorphous-solution were established as a function of pH, allowing possible phase transformations, namely, crystallization or liquid-liquid phase separation, to be mapped for different initial doses and fluid volumes. Endogenous surfactants including sodium taurocholate, lecithin, glycerol monooleate, and sodium oleate in biorelevant media significantly extended the phase boundaries due to solubilization, to an extent that was dependent on the concentration of the surface-active agents. The nucleation induction time of posaconazole was much shorter in biorelevant media in comparison to the corresponding buffer solution, with two distinct regions observed in all media that could be attributed to a change in the nucleation mechanism at high and low supersaturation. The presence of undissolved nanocrystals accelerated the desupersaturation. This work enhances our understanding of biorelevant factors impacting precipitation kinetics, which might affect absorption in vivo. It is expected that findings from this study with posaconazole could be broadly applicable to other weakly basic compounds, after taking into consideration differences in pKa, solubility, and molecular structure.
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Affiliation(s)
- Tu Van Duong
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Zhanglin Ni
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - Lynne S Taylor
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
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18
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Huang Z, Staufenbiel S, Bodmeier R. Kinetic solubility improvement and influence of polymers on controlled supersaturation of itraconazole-succinic acid nano-co-crystals. Int J Pharm 2022; 616:121536. [PMID: 35124120 DOI: 10.1016/j.ijpharm.2022.121536] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 11/16/2022]
Abstract
Nano-co-crystals enhance the solubility and dissolution rate of poorly soluble drugs. The objective of this study was to obtain a better understanding of the dissolution process of nano-co-crystals and of the precipitation inhibition by various polymers. Itraconazole-succinic acid (ITZ-SUC) nano-co-crystal was chosen as model drug formulation to investigate the supersaturation and precipitation inhibition capabilities of various polymers (HPMC E5, HPMC E50, HPMCAS, HPC-SSL, PVPK30 and PVPVA64). The kinetic concentration-time profiles of nano-co-crystal were measured under non-sink conditions with in situ UV-VIS spectroscopy. HPMC E5 performed best by achieving the greatest extended supersaturation/precipitation inhibition. The precipitation inhibition capacity of HPMC E5 was proportional to its concentration. The maximum achievable supersaturation was proportional to the dissolution rate which can be modulated by the rate of supersaturation generation (i.e., addition rate or dose). Supersaturation could be prolonged significantly resulting in 2-5-fold increased area under the dissolution curves compared to nano-co-crystals alone. This effect was limited by a critical excess of undissolved particles with high specific surface area which acted as crystallization seeds resulting in faster precipitation. The study highlighted that a faster dissolution rate and the use of precipitation inhibitors were two key factors determining the extent and time of supersaturation of nano-co-crystals.
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Affiliation(s)
- Zun Huang
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, 12169 Berlin, Germany
| | - Sven Staufenbiel
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, 12169 Berlin, Germany
| | - Roland Bodmeier
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, 12169 Berlin, Germany.
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19
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Tailoring Chlorthalidone Aqueous Solubility by Cocrystallization: Stability and Dissolution Behavior of a Novel Chlorthalidone-Caffeine Cocrystal. Pharmaceutics 2022; 14:pharmaceutics14020334. [PMID: 35214066 PMCID: PMC8876770 DOI: 10.3390/pharmaceutics14020334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 02/06/2023] Open
Abstract
A cocrystal of the antihypertensive drug chlorthalidone (CTD) with caffeine (CAF) was obtained (CTD-CAF) by the slurry method, for which a 2:1 stoichiometric ratio was found by powder and single-crystal X-ray diffraction analysis. Cocrystal CTD-CAF showed a supramolecular organization in which CAF molecules are embedded in channels of a 3D network of CTD molecules. The advantage of the cocrystal in comparison to CTD is reflected in a threefold solubility increase and in the dose/solubility ratios, which diminished from near-unit values for D0D to 0.29 for D0CC. Furthermore, dissolution experiments under non-sink conditions showed improved performance of CTD-CAF compared with pure CTD. Subsequent studies showed that CTD-CAF cocrystals transform to CTD form I where CTD precipitation inhibition could be achieved in the presence of pre-dissolved polymer HPMC 80–120 cPs, maintaining supersaturation drug concentrations for at least 180 min. Finally, dissolution experiments under sink conditions unveiled that the CTD-CAF cocrystal induced, in pH-independent manner, faster and more complete CTD dissolution when compared to commercial tablets of CTD. Due to the stability and dissolution behavior of the novel CTD-CAF cocrystal, it could be used to develop solid dosage forms using a lower CTD dose to obtain the same therapeutic response and fewer adverse effects.
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20
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Shigemura M, Omori M, Sugano K. Polymeric precipitation inhibitor differently affects cocrystal surface and bulk solution phase transformations. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.103029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Xia MY, Zhu BQ, Wang JR, Yang ZE, Mei XF. Superior Dissolution Behavior and Bioavailability of Pharmaceutical Cocrystals and Recent Regulatory Issues. ACS Med Chem Lett 2021; 13:29-37. [PMID: 35059121 PMCID: PMC8762724 DOI: 10.1021/acsmedchemlett.1c00478] [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: 08/31/2021] [Accepted: 12/15/2021] [Indexed: 01/16/2023] Open
Abstract
Cocrystallization has been used extensively to optimize the physicochemical properties of active pharmaceutical ingredients (APIs), such as stability, dissolution, and bioavailability. This review summarizes the history and development of cocrystals, the differences between pharmaceutical cocrystals and salts, and the mechanism underlying the improvement of dissolution through cocrystallization. The correlation of in vitro dissolution and in vivo absorption data (IVIVC) of cocrystals has been discussed as well. Subsequently, guidelines for regulatory classification of cocrystals by the U.S. Food and Drug Administration (FDA) and European Medicines Agency (EMA) are introduced. Finally, d-α-tocopherol is used as an example to demonstrate the potential of cocrystals in patent generation.
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Affiliation(s)
- Meng Y. Xia
- Pharmaceutical
Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy
of Sciences, Shanghai 201203, China,University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Bing Q. Zhu
- Pharmaceutical
Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy
of Sciences, Shanghai 201203, China
| | - Jian-R. Wang
- Pharmaceutical
Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy
of Sciences, Shanghai 201203, China
| | - Ze E. Yang
- Pharmaceutical
Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy
of Sciences, Shanghai 201203, China
| | - Xue F. Mei
- Pharmaceutical
Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy
of Sciences, Shanghai 201203, China,University
of Chinese Academy of Sciences, Beijing 100049, China,
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22
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Salas-Zúñiga R, Mondragón-Vásquez K, Alcalá-Alcalá S, Lima E, Höpfl H, Herrera-Ruiz D, Morales-Rojas H. Nanoconfinement of a Pharmaceutical Cocrystal with Praziquantel in Mesoporous Silica: The Influence of the Solid Form on Dissolution Enhancement. Mol Pharm 2021; 19:414-431. [PMID: 34967632 DOI: 10.1021/acs.molpharmaceut.1c00606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Nanoconfinement is a recent strategy to enhance solubility and dissolution of active pharmaceutical ingredients (APIs) with poor biopharmaceutical properties. In this work, we combine the advantage of cocrystals of racemic praziquantel (PZQ) containing a water-soluble coformer (i.e., increased solubility and supersaturation) and its confinement in a mesoporous silica material (i.e., increased dissolution rate). Among various potential cocrystalline phases of PZQ with dicarboxylic acid coformers, the cocrystal with glutaric acid (PZQ-GLU) was selected and successfully loaded by the melting method into nanopores of SBA-15 (experimental pore size of 5.6 nm) as suggested by physical and spectroscopic characterization using various complementary techniques like N2 adsorption, powder X-ray diffraction (PXRD), infrared spectroscopy (IR), solid-state NMR (ss-NMR), differential scanning calorimetry (DSC), and field emission-scanning electron microscopy (FE-SEM) analysis. The PZQ-GLU phase confined in SBA-15 presents more mobility according to ss-NMR studies but still retains its cocrystal-like features in the IR spectra, and it also shows depression of the melting transition temperature in DSC. On the contrary, pristine PZQ loaded into SBA-15 was found only in the amorphous state, according to the aforementioned studies. This dissimilar behavior of the composites was attributed to the larger crystal lattice of PZQ over the PZQ-GLU cocrystal (3320.1 vs 1167.9 Å3) and to stronger intermolecular interactions between PZQ and GLU, facilitating the confinement of a more mobile solid-like phase in the constrained channels. Powder dissolution studies under extremely nonsink conditions (SI = 0.014) of the confined PZQ-GLU and amorphous PZQ phases embedded in mesoporous silica showed transient supersaturation behavior when dissolving in simulated gastric fluid (HCl pH 1.2 at 37 ± 0.5 °C) in a similar fashion to the bare cocrystal PZQ-GLU. A comparison of the area under the curve (AUC0-90 min) of the dissolution profiles afforded a dissolution advantage of 2-fold (p < 0.05) of the new solid phases over pristine racemic PZQ after 90 min; under these conditions, the solubilized API reprecipitated as the recently discovered PZQ hemihydrate (PZQ-HH). In the presence of a cellulosic polymer, sustained solubilization of PZQ from composites SBA-15/PZQ or SBA-15/PZQ-GLU was observed, increasing AUC0-90 min up to 5.1-fold in comparison to pristine PZQ. The combination of a confined solid phase in mesoporous silica and a methylcellulose polymer in the dissolution medium effectively maintained the drug solubilized during times significant to promote absorption. Finally, powder dissolution studies under intermediate nonsink conditions (SI = 1.99) showed a fast release profile from the nanoconfined PZQ-GLU phase in SBA-15, which reached rapid saturation (95% drug dissolved at 30 min); the amorphous PZQ composite and bare PZQ-GLU also displayed an immediate release of the API but at a lower rate (69% drug dissolved at 30 min). In all of these cases, a large dissolution advantage was observed from any of the novel solid phases over PZQ.
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Affiliation(s)
- Reynaldo Salas-Zúñiga
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, México.,Centro de Investigaciones Químicas, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, México
| | | | - Sergio Alcalá-Alcalá
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, México
| | - Enrique Lima
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Coyoacán, Ciudad de México 04510, México
| | - Herbert Höpfl
- Centro de Investigaciones Químicas, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, México
| | - Dea Herrera-Ruiz
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, México
| | - Hugo Morales-Rojas
- Centro de Investigaciones Químicas, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, México
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23
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Tong M, Wu X, Zhang S, Hua D, Li S, Yu X, Wang J, Zhang Z. Application of TPGS as an efflux inhibitor and a plasticizer in baicalein solid dispersion. Eur J Pharm Sci 2021; 168:106071. [PMID: 34774716 DOI: 10.1016/j.ejps.2021.106071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/07/2021] [Accepted: 11/07/2021] [Indexed: 11/18/2022]
Abstract
The oral bioavailability and efficacy of baicalein is dramatically limited by its low solubility and effect of efflux. In our study, we chose PVP-VA64 as a carrier and TPGS as a plasticizer and efflux inhibitor to prepare a solid dispersion of baicalein using hot-melt extrusion technology to improve its solubility and bioavailability. The hot-melt process and formulation were optimized, and a BAC-PVP VA64-TPGS solid dispersion (BPT-SD) was prepared. BAC exists in an amorphous or molecular state in BPT-SD. BPT-SD comprised irregular lumps and small particles without BAC or carrier characteristics. The dissolution efficiency of BPT-SD improved under sink conditions. FTIR showed a strong hydrogen bond between BAC and PVP-VA64 in BPT-SD. BPT-SD maintained good physical stability for 6 months. The apparent permeability coefficient of BAC in the Caco-2 cell model confirmed that BPT-SD had higher gastrointestinal membrane permeability. A rat pharmacokinetic study showed that BPT-SD had higher Cmax and AUC0-24h, shorter Tmax, and 2.88-fold higher bioavailability than BAC. A behavioral experiment in chronic unpredictable mild stress (CUMS) mice confirmed the antidepressant efficacy of BAC. BPT-SD reversed depression-like behavior in CUMS mice and improved BAC bioavailability. BAC preparation into a solid dispersion significantly enhanced dissolution performance and bioavailability.
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Affiliation(s)
- Meng Tong
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Road, Nanjing, Jiangsu 210028, China
| | - Xiaoyan Wu
- Pharmacy, Nanjing Drum Tower Hospital, The affiliated hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Shuya Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Road, Nanjing, Jiangsu 210028, China
| | - Di Hua
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Road, Nanjing, Jiangsu 210028, China
| | - Shukun Li
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Road, Nanjing, Jiangsu 210028, China
| | - Xiangyu Yu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Road, Nanjing, Jiangsu 210028, China
| | - Jing Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Road, Nanjing, Jiangsu 210028, China.
| | - Zhenhai Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Road, Nanjing, Jiangsu 210028, China.
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24
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Kaur M, Yardley V, Wang K, Masania J, Arroo RRJ, Turner DB, Li M. Artemisinin Cocrystals for Bioavailability Enhancement. Part 2: In Vivo Bioavailability and Physiologically Based Pharmacokinetic Modeling. Mol Pharm 2021; 18:4272-4289. [PMID: 34748332 DOI: 10.1021/acs.molpharmaceut.1c00385] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the evaluation and prediction of the pharmacokinetic (PK) performance of artemisinin (ART) cocrystal formulations, that is, 1:1 artemisinin/orcinol (ART-ORC) and 2:1 artemisinin/resorcinol (ART2-RES), using in vivo murine animal and physiologically based pharmacokinetic (PBPK) models. The efficacy of the ART cocrystal formulations along with the parent drug ART was tested in mice infected with Plasmodium berghei. When given at the same dose, the ART cocrystal formulation showed a significant reduction in parasitaemia at day 4 after infection compared to ART alone. PK parameters including Cmax (maximum plasma concentration), Tmax (time to Cmax), and AUC (area under the curve) were obtained by determining drug concentrations in the plasma using liquid chromatography-high-resolution mass spectrometry (LC-HRMS), showing enhanced ART levels after dosage with the cocrystal formulations. The dose-response tests revealed that a significantly lower dose of the ART cocrystals in the formulation was required to achieve a similar therapeutic effect as ART alone. A PBPK model was developed using a PBPK mouse simulator to accurately predict the in vivo behavior of the cocrystal formulations by combining in vitro dissolution profiles with the properties of the parent drug ART. The study illustrated that information from classical in vitro and in vivo experimental investigations of the parent drug of ART formulations can be coupled with PBPK modeling to predict the PK parameters of an ART cocrystal formulation in an efficient manner. Therefore, the proposed modeling strategy could be used to establish in vitro and in vivo correlations for different cocrystals intended to improve dissolution properties and to support clinical candidate selection, contributing to the assessment of cocrystal developability and formulation development.
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Affiliation(s)
- Manreet Kaur
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
| | - Vanessa Yardley
- Department of Infection & Immunity, Faculty of Infectious & Tropical Diseases, London School of Hygiene and Tropical Medicine, London WC1E 7HT, U.K
| | - Ke Wang
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
| | - Jinit Masania
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
| | - Randolph R J Arroo
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
| | - David B Turner
- Certara UK Limited, Simcyp Division, Sheffield S1 2BJ, U.K
| | - Mingzhong Li
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
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Kataoka M, Minami K, Takagi T, Amidon GE, Yamashita S. In Vitro-In Vivo Correlation in Cocrystal Dissolution: Consideration of Drug Release Profiles Based on Coformer Dissolution and Absorption Behavior. Mol Pharm 2021; 18:4122-4130. [PMID: 34618448 DOI: 10.1021/acs.molpharmaceut.1c00537] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This study assessed the in vitro-in vivo correlation in cocrystal dissolution based on the coformer behavior. 4-Aminobenzoic acid (4ABA) was used as a coformer. Cocrystals of poorly water-soluble drugs with 4ABA, ketoconazole cocrystal (KTZ-4ABA), posaconazole cocrystal (PSZ-4ABA), and itraconazole cocrystal (ITZ-4ABA) were used. These three cocrystals generated supersaturated solutions in fasted state simulated intestinal fluid (FaSSIF) in a small-scale, 8 mL dissolution vessel. The time profile of the dissolved amount of 4ABA, an indicator of cocrystal dissolution, was significantly different among the three cocrystals. Under the conditions utilized, half of the KTZ-4ABA cocrystal solid rapidly dissolved within 5 min and the dissolved amount (% of applied amount) of KTZ and 4ABA was the same. Then, even though the residual solid cocrystal gradually dissolved, KTZ precipitated with time. The PSZ-4ABA cocrystal dissolved in a linear fashion with time but the dissolved concentration of PSZ reached a plateau in the supersaturated state and was maintained for at least 2 h. The dissolution rate of ITZ-4ABA was very slow compared to those of the other cocrystals, but a similar tendency was observed between cocrystal dissolution and the dissolved amount of ITZ. The rank order of the cocrystal dissolution rate based on the conformer concentration was KTZ-4ABA > PSZ-4ABA > ITZ-4ABA. Furthermore, cocrystallization of the three drugs with 4ABA significantly enhanced the oral drug absorption in rats. The rank order of the in vivo cocrystal dissolution rate by a deconvolution analysis with the plasma concentration-time profile of 4ABA was KTZ-4ABA > PSZ-4ABA > ITZ-4ABA, which corresponded well with the in vitro dissolution profiles of the cocrystals. These results indicate that analysis of cocrystal dissolution based on the coformer behavior may be useful to evaluate the in vitro and in vivo cocrystal dissolution.
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Affiliation(s)
- Makoto Kataoka
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka 573-0101, Japan.,College of Pharmacy, University of Michigan, Ann Arbor, Michigan 498109-1065, United States
| | - Keiko Minami
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka 573-0101, Japan
| | - Toshihide Takagi
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka 573-0101, Japan
| | - Gregory E Amidon
- College of Pharmacy, University of Michigan, Ann Arbor, Michigan 498109-1065, United States
| | - Shinji Yamashita
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka 573-0101, Japan
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Kaur M, Yardley V, Wang K, Masania J, Botana A, Arroo RRJ, Li M. Artemisinin Cocrystals for Bioavailability Enhancement. Part 1: Formulation Design and Role of the Polymeric Excipient. Mol Pharm 2021; 18:4256-4271. [PMID: 34723557 DOI: 10.1021/acs.molpharmaceut.1c00384] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Artemisinin (ART) is a most promising antimalarial agent, which is both effective and well tolerated in patients, though it has therapeutic limitations due to its low solubility, bioavailability, and short half-life. The objective of this work was to explore the possibility of formulating ART cocrystals, i.e., artemisinin-orcinol (ART-ORC) and artemisinin-resorcinol (ART2-RES), as oral dosage forms to deliver ART molecules for bioavailability enhancement. This is the first part of the study, aiming to develop a simple and effective formulation, which can then be tested on an appropriate animal model (i.e., mouse selected for in vivo study) to evaluate their preclinical pharmacokinetics for further development. In the current work, the physicochemical properties (i.e., solubility and dissolution rate) of ART cocrystals were measured to collect information necessary for the formulation development strategy. It was found that the ART solubility can be increased significantly by its cocrystals, i.e., 26-fold by ART-ORC and 21-fold by ART2-RES, respectively. Screening a set of polymers widely used in pharmaceutical products, including poly(vinylpyrrolidone), hydroxypropyl methylcellulose, and hydroxypropyl methylcellulose acetate succinate, based on the powder dissolution performance parameter analysis, revealed that poly(vinylpyrrolidone)/vinyl acetate (PVP-VA) was the most effective crystallization inhibitor. The optimal concentration of PVP-VA at 0.05 mg/mL for the formulation was then determined by a dissolution/permeability method, which represented a simplified permeation model to simultaneously evaluate the effects of a crystallization inhibitor on the dissolution and permeation performance of ART cocrystals. Furthermore, experiments, including surface dissolution of single ART cocrystals monitored by Raman spectroscopy, scanning electron microscopy and diffusion properties of ART in solution measured by 1H and diffusion-ordered spectroscopy nuclear magnetic resonance spectroscopy, provided insights into how the excipient affects the ART cocrystal dissolution performance and bioavailability.
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Affiliation(s)
- Manreet Kaur
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
| | - Vanessa Yardley
- Department of Infection & Immunity, Faculty of Infectious & Tropical Diseases, London School of Hygiene and Tropical Medicine, London WC1E 7HT, U.K
| | - Ke Wang
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
| | - Jinit Masania
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
| | | | - Randolph R J Arroo
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
| | - Mingzhong Li
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, U.K
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Effect of Surfactants and Polymers on the Dissolution Behavior of Supersaturable Tecovirimat-4-Hydroxybenzoic Acid Cocrystals. Pharmaceutics 2021; 13:pharmaceutics13111772. [PMID: 34834187 PMCID: PMC8624993 DOI: 10.3390/pharmaceutics13111772] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/13/2021] [Accepted: 10/20/2021] [Indexed: 11/28/2022] Open
Abstract
(1) Background: Pharmaceutical cocrystals have attracted remarkable interest and have been successfully used to enhance the absorption of poorly water-soluble drugs. However, supersaturable cocrystals are sometimes thermodynamically unstable, and the solubility advantages present a risk of precipitation because of the solution-mediated phase transformation (SMPT). Additives such as surfactants and polymers could sustain the supersaturation state successfully, but the effect needs insightful understanding. The aim of the present study was to investigate the roles of surfactants and polymers in the dissolution-supersaturation-precipitation (DSP) behavior of cocrystals. (2) Methods: Five surfactants (SDS, Poloxamer 188, Poloxamer 407, Cremophor RH 40, polysorbate 80) and five polymers (PVP K30, PVPVA 64, HPC, HPMC E5, CMC-Na) were selected as additives. Tecovirimat-4-hydroxybenzoic (TEC-HBA) cocrystals were chosen as a model cocrystal. The TEC-HBA cocrystals were first designed and verified by PXRD, DSC, SEM, and FTIR. The effects of surfactants and polymers on the solubility and dissolution of TEC-HBA cocrystals under sink and nonsink conditions were then investigated. (3) Results: Both the surfactants and polymers showed significant dissolution enhancement effects, and most of the polymers were more effective than the surfactants, according to the longer Tmax and higher Cmax. These results demonstrate that the dissolution behavior of cocrystals might be achieved by the maintained supersaturation effect of the additives. Interestingly, we found a linear relationship between the solubility and Cmax of the dissolution curve for surfactants, while no similar phenomena were found in solutions with polymer. (4) Conclusions: The present study provides a basis for additive selection and a framework for understanding the behavior of supersaturable cocrystals in solution.
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Hatanaka Y, Uchiyama H, Kadota K, Tozuka Y. Improved solubility and permeability of both nifedipine and ketoconazole based on coamorphous formation with simultaneous dissolution behavior. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Guo M, Sun X, Chen J, Cai T. Pharmaceutical cocrystals: A review of preparations, physicochemical properties and applications. Acta Pharm Sin B 2021; 11:2537-2564. [PMID: 34522597 PMCID: PMC8424375 DOI: 10.1016/j.apsb.2021.03.030] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/22/2021] [Accepted: 03/10/2021] [Indexed: 12/15/2022] Open
Abstract
Pharmaceutical cocrystals are multicomponent systems in which at least one component is an active pharmaceutical ingredient and the others are pharmaceutically acceptable ingredients. Cocrystallization of a drug substance with a coformer is a promising and emerging approach to improve the performance of pharmaceuticals, such as solubility, dissolution profile, pharmacokinetics and stability. This review article presents a comprehensive overview of pharmaceutical cocrystals, including preparation methods, physicochemical properties, and applications. Furthermore, some examples of drug cocrystals are highlighted to illustrate the effect of crystal structures on the various aspects of active pharmaceutical ingredients, such as physical stability, chemical stability, mechanical properties, optical properties, bioavailability, sustained release and therapeutic effect. This review will provide guidance for more efficient design and manufacture of pharmaceutical cocrystals with desired physicochemical properties and applications.
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Obtaining Cocrystals by Reaction Crystallization Method: Pharmaceutical Applications. Pharmaceutics 2021; 13:pharmaceutics13060898. [PMID: 34204318 PMCID: PMC8234160 DOI: 10.3390/pharmaceutics13060898] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/08/2021] [Accepted: 06/13/2021] [Indexed: 11/17/2022] Open
Abstract
Cocrystals have gained attention in the pharmaceutical industry due to their ability to improve solubility, stability, in vitro dissolution rate, and bioavailability of poorly soluble drugs. Conceptually, cocrystals are multicomponent solids that contain two or more neutral molecules in stoichiometric amounts within the same crystal lattice. There are several techniques for obtaining cocrystals described in the literature; however, the focus of this article is the Reaction Crystallization Method (RCM). This method is based on the generation of a supersaturated solution with respect to the cocrystal, while this same solution is saturated or unsaturated with respect to the components of the cocrystal individually. The advantages of the RCM compared with other cocrystallization techniques include the ability to form cocrystals without crystallization of individual components, applicability to the development of in situ techniques for the screening of high quality cocrystals, possibility of large-scale production, and lower cost in both time and materials. An increasing number of scientific studies have demonstrated the use of RCM to synthesize cocrystals, mainly for drugs belonging to class II of the Biopharmaceutics Classification System. The promising results obtained by RCM have demonstrated the applicability of the method for obtaining pharmaceutical cocrystals that improve the biopharmaceutical characteristics of drugs.
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31
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Pardhi VP, Jain K. Impact of binary/ternary solid dispersion utilizing poloxamer 188 and TPGS to improve pharmaceutical attributes of bedaquiline fumarate. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Kuang W, Ji S, Wang X, Zhang J, Lan P. Relationship between crystal structures and physicochemical properties of lamotrigine cocrystal. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.11.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Madsen CM, Plum J, Hens B, Augustijns P, Müllertz A, Rades T. Exploring the Impact of Intestinal Fluid Components on the Solubility and Supersaturation of Danazol. J Pharm Sci 2021; 110:2479-2488. [PMID: 33428916 DOI: 10.1016/j.xphs.2020.12.039] [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: 08/17/2020] [Revised: 11/10/2020] [Accepted: 12/14/2020] [Indexed: 02/06/2023]
Abstract
Eleven simulated intestinal fluids (SIF) were designed using a Design of Experiment (DoE) approach. The DoE SIF covered a range of compositions of fasted state human intestinal fluid (FaHIF) with regard to pH, bile salt (BS), and phospholipid (PL). Using the model compound danazol, the apparent crystalline solubility (aCS) and apparent amorphous solubility (aAS), as well as the supersaturation propensity was determined in the DoE SIF media. The aCS of danazol was dependent on the composition of the SIF, with PL as the main factor, and a small effect from BS and an interaction between BS and PL. From the DoE solubility data a model was derived, which could predict aCS in commercially available SIF (FaSSIF-V1 and -V2) and in a range of FaHIF. The aAS of danazol was differently affected by the SIF composition than the aCS; PL was again the main factor influencing the aAS, but interactions between BS and pH, as well as pH and PL were also important. The supersaturation propensities of danazol in the DoE SIF media were affected by the same factors as the aCS. Hence, the supersaturation behaviour and aCS of danazol, were found to be closely related.
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Affiliation(s)
- Cecilie Maria Madsen
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark; Pharmaceutical R&D, H. Lundbeck A/S, Valby, Denmark; Pharmaceutical Sciences, Janssen, Beerse, Belgium
| | - Jakob Plum
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Bart Hens
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Patrick Augustijns
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Anette Müllertz
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark; Bioneer:FARMA, University of Copenhagen, Copenhagen, Denmark.
| | - Thomas Rades
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark; Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
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Yuan J, Liu X, Wang S, Chang C, Zeng Q, Song Z, Jin Y, Zeng Q, Sun G, Ruan S, Greenwell C, Abramov YA. Virtual coformer screening by a combined machine learning and physics-based approach. CrystEngComm 2021. [DOI: 10.1039/d1ce00587a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Cocrystals as a solid form technology for improving physicochemical properties have gained increasing popularity in the pharmaceutical, nutraceutical, and agrochemical industries.
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Affiliation(s)
- Jiuchuang Yuan
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
| | - Xuetao Liu
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
- Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogeomics, Peking University Shenzhen Graduate School, Shenzhen, 518055 China
| | - Simin Wang
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
| | - Chao Chang
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
| | - Qiao Zeng
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
| | - Zhengtian Song
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
| | - Yingdi Jin
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
| | - Qun Zeng
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
| | - Guangxu Sun
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
| | - Shigang Ruan
- XtalPi Inc., Shenzhen Jingtai Technology Co., Ltd., Floor 3, Sf Industrial Plant, No. 2 hongliu Road, Fubao Community, Fubao Street, Futian District, Shenzhen, 518100 China
| | | | - Yuriy A. Abramov
- XtalPi Inc, Cambridge, Massachusetts 02142, USA
- Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, USA
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Luo C, Wu W, Lou S, Zhao S, Yang K. Improving the in vivo bioavailability and in vitro anti-inflammatory activity of tanshinone IIA by alginate solid dispersion. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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36
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Cavanagh KL, Kuminek G, Rodríguez-Hornedo N. Cocrystal Solubility Advantage and Dose/Solubility Ratio Diagrams: A Mechanistic Approach To Selecting Additives and Controlling Dissolution-Supersaturation-Precipitation Behavior. Mol Pharm 2020; 17:4286-4301. [PMID: 32815731 DOI: 10.1021/acs.molpharmaceut.0c00713] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Two of the main questions regarding cocrystal selection and formulation development are whether the will be stable and how fast can it dissolve the drug dose. Dissolving the drug dose may require cocrystals with a high solubility advantage over drug (SA = SCC/SD), but these may have limited potential to sustain drug supersaturation. Thus, we propose a twofold approach to mitigate the risk of drug precipitation by optimizing thermodynamic (SA) and kinetic factors (nucleation inhibitors). This risk can be evaluated by considering the cocrystal SA and drug dose/solubility ratio (D0D = Cdose/SD), which in tandem represent the maximum theoretical supersaturation that a cocrystal may generate, the driving force for drug precipitation, and the potential for dose-/solubility-limited absorption. cocrystals with SA and D0D values above critical supersaturation are prone to rapid precipitation, often negating their utility as a solubility enhancement tool. This work presents a mechanistic approach to controlling the dissolution-supersaturation-precipitation behavior of cocrystal systems, whereby relationships between SA, D0D, and the drug-solubilizing power of surfactants (SPD = SD,T/SD,aq) are used to fine-tune cocrystal-inherent supersaturation by rational additive selection. Experimental results with danazol-vanillin cocrystal demonstrate how SA, D0D, and SPD are key thermodynamic parameters to understanding the kinetic cocrystal behavior and how the risks of cocrystal development may be mitigated through the mechanistic formulation design.
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Affiliation(s)
- Katie L Cavanagh
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
| | - Gislaine Kuminek
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
| | - Naír Rodríguez-Hornedo
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
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Sun G, Jin Y, Li S, Yang Z, Shi B, Chang C, Abramov YA. Virtual Coformer Screening by Crystal Structure Predictions: Crucial Role of Crystallinity in Pharmaceutical Cocrystallization. J Phys Chem Lett 2020; 11:8832-8838. [PMID: 32969658 DOI: 10.1021/acs.jpclett.0c02371] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
One of the most popular strategies of the optimization of drug properties in the pharmaceutical industry appears to be a solid form changing into a cocrystalline form. A number of virtual screening approaches have been previously developed to allow a selection of the most promising cocrystal formers (coformers) for an experimental follow-up. A significant drawback of those methods is related to the lack of accounting for the crystallinity contribution to cocrystal formation. To address this issue, we propose in this study two virtual coformer screening approaches based on a modern cloud-computing crystal structure prediction (CSP) technology at a dispersion-corrected density functional theory (DFT-D) level. The CSP-based methods were for the first time validated on challenging cases of indomethacin and paracetamol cocrystallization, for which the previously developed approaches provided poor predictions. The calculations demonstrated a dramatic improvement of the virtual coformer screening performance relative to the other methods. It is demonstrated that the crystallinity contribution to the formation of paracetamol and indomethacin cocrystals is a dominant one and, therefore, should not be ignored in the virtual screening calculations. Our results encourage a broad utilization of the proposed CSP-based technology in the pharmaceutical industry as the only virtual coformer screening method that directly accounts for the crystallinity contribution.
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Affiliation(s)
- Guangxu Sun
- XtalPi Inc. (Shenzhen Jingtai Technology Co., Ltd.), Floor 4, No. 9, Hualian Industrial Zone, Dalang Street, Longhua District, Shenzhen 518100, China
| | - Yingdi Jin
- XtalPi Inc. (Shenzhen Jingtai Technology Co., Ltd.), Floor 4, No. 9, Hualian Industrial Zone, Dalang Street, Longhua District, Shenzhen 518100, China
| | - Sizhu Li
- XtalPi Inc. (Shenzhen Jingtai Technology Co., Ltd.), Floor 4, No. 9, Hualian Industrial Zone, Dalang Street, Longhua District, Shenzhen 518100, China
| | - Zhuocen Yang
- XtalPi Inc. (Shenzhen Jingtai Technology Co., Ltd.), Floor 4, No. 9, Hualian Industrial Zone, Dalang Street, Longhua District, Shenzhen 518100, China
| | - Baimei Shi
- XtalPi Inc. (Shenzhen Jingtai Technology Co., Ltd.), Floor 4, No. 9, Hualian Industrial Zone, Dalang Street, Longhua District, Shenzhen 518100, China
| | - Chao Chang
- XtalPi Inc. (Shenzhen Jingtai Technology Co., Ltd.), Floor 4, No. 9, Hualian Industrial Zone, Dalang Street, Longhua District, Shenzhen 518100, China
| | - Yuriy A Abramov
- XtalPi Inc, 245 Main Street, Cambridge, Massachusetts 02142, United States
- Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
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38
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Riedmaier AE, DeMent K, Huckle J, Bransford P, Stillhart C, Lloyd R, Alluri R, Basu S, Chen Y, Dhamankar V, Dodd S, Kulkarni P, Olivares-Morales A, Peng CC, Pepin X, Ren X, Tran T, Tistaert C, Heimbach T, Kesisoglou F, Wagner C, Parrott N. Use of Physiologically Based Pharmacokinetic (PBPK) Modeling for Predicting Drug-Food Interactions: an Industry Perspective. AAPS JOURNAL 2020; 22:123. [PMID: 32981010 PMCID: PMC7520419 DOI: 10.1208/s12248-020-00508-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/01/2020] [Indexed: 12/19/2022]
Abstract
The effect of food on pharmacokinetic properties of drugs is a commonly observed occurrence affecting about 40% of orally administered drugs. Within the pharmaceutical industry, significant resources are invested to predict and characterize a clinically relevant food effect. Here, the predictive performance of physiologically based pharmacokinetic (PBPK) food effect models was assessed via de novo mechanistic absorption models for 30 compounds using controlled, pre-defined in vitro, and modeling methodology. Compounds for which absorption was known to be limited by intestinal transporters were excluded in this analysis. A decision tree for model verification and optimization was followed, leading to high, moderate, or low food effect prediction confidence. High (within 0.8- to 1.25-fold) to moderate confidence (within 0.5- to 2-fold) was achieved for most of the compounds (15 and 8, respectively). While for 7 compounds, prediction confidence was found to be low (> 2-fold). There was no clear difference in prediction success for positive or negative food effects and no clear relationship to the BCS category of tested drug molecules. However, an association could be demonstrated when the food effect was mainly related to changes in the gastrointestinal luminal fluids or physiology, including fluid volume, motility, pH, micellar entrapment, and bile salts. Considering these findings, it is recommended that appropriately verified mechanistic PBPK modeling can be leveraged with high to moderate confidence as a key approach to predicting potential food effect, especially related to mechanisms highlighted here.
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Affiliation(s)
| | - Kevin DeMent
- Global DMPK, Takeda Pharmaceutical Co., Ltd., San Diego, California, USA
| | - James Huckle
- Drug Product Technology, Amgen, Thousand Oaks, California, USA
| | - Phil Bransford
- Modeling & Informatics, Vertex Pharmaceuticals, Boston, Massachusetts, USA
| | - Cordula Stillhart
- Pharmaceutical R&D, Formulation & Process Sciences, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Richard Lloyd
- Computational & Modelling Sciences, Platform Technology Sciences, GlaxoSmithKline R&D, Ware, Hertfordshire, UK
| | - Ravindra Alluri
- Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Sumit Basu
- Pharmacokinetic, Pharmacodynamic and Drug Metabolism-Quantitative Pharmacology and Pharmacometrics (PPDM-QP2), Merck & Co, Inc., West Point, Pennsylvania, USA
| | - Yuan Chen
- Department of Drug Metabolism and Pharmacokinetics, Genentech, South San Francisco, California, USA
| | - Varsha Dhamankar
- Formulation Development, Vertex Pharmaceuticals, Boston, Massachusetts, USA.,Formulation Development, Cyclerion Therapeutics Inc., Cambridge, Massachusetts, USA
| | - Stephanie Dodd
- Chemical & Pharmaceutical Profiling, Novartis Institutes for Biomedical Research, Cambridge, Massachusetts, USA
| | - Priyanka Kulkarni
- Department of Pharmacokinetics and Drug Metabolism, Amgen Inc., Cambridge, Massachusetts, USA
| | - Andrés Olivares-Morales
- Pharmaceutical Sciences, Roche Pharmaceutical Research and Early Development, Roche Innovation Center, Basel, Switzerland
| | - Chi-Chi Peng
- Department of Pharmacokinetics and Drug Metabolism, Amgen Inc., Cambridge, Massachusetts, USA.,Drug Metabolism and Pharmacokinetics, Theravance Biopharma, South San Francisco, California, USA
| | - Xavier Pepin
- New Modalities and Parenteral Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, UK
| | - Xiaojun Ren
- Modeling & Simulation, PK Sciences, Novartis Institutes of Biomedical Research, East Hanover, New Jersey, USA
| | - Thuy Tran
- Computational & Modelling Sciences, Platform Technology Sciences, GlaxoSmithKline R&D, Collegeville, Pennsylvania, USA
| | | | - Tycho Heimbach
- PBPK & Biopharmaceutics, Novartis Institutes of Biomedical Research, Wayne, New Jersey, USA
| | | | - Christian Wagner
- Pharmaceutical Technologies, Chemical and Pharmaceutical Development, Merck Healthcare KGaA, Darmstadt, Germany
| | - Neil Parrott
- Pharmaceutical Sciences, Roche Pharmaceutical Research and Early Development, Roche Innovation Center, Basel, Switzerland
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Omori M, Watanabe T, Uekusa T, Oki J, Inoue D, Sugano K. Effects of Coformer and Polymer on Particle Surface Solution-Mediated Phase Transformation of Cocrystals in Aqueous Media. Mol Pharm 2020; 17:3825-3836. [PMID: 32870691 DOI: 10.1021/acs.molpharmaceut.0c00587] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The purpose of the present study was to investigate the effect of the coformer difference on particle surface solution-mediated phase transformation (PS-SMPT) during cocrystal particle dissolution in aqueous media in the absence and presence of polymers. SMPT can occur either in the bulk phase or at the particle surface because drug molecules can be supersaturated at the dissolving cocrystal surface, as well as in the bulk phase. Previously, bulk phase SMPT has been primarily investigated in formulation development. However, little is known about the effects of coformers and polymers on PS-SMPT of cocrystals. In this study, six carbamazepine (CBZ) cocrystals were used as model cocrystals (malonic acid (MAL), succinic acid (SUC), glutaric acid (GLA), adipic acid (ADP), saccharin (SAC), and nicotinamide (NCT); nonsink dissolution tests were performed with or without a precipitation inhibitor (hydroxypropyl methylcellulose (HPMC)) at pH 6.5. The residual particles were analyzed by powder X-ray diffraction, differential scanning calorimetry, polarized light microscopy (PLM), and scanning electron microscopy. Real-time PLM was used to directly observe rapid PS-SMPT. In the absence of HPMC, supersaturation was not observed in the bulk phase for all cocrystals. All cocrystals rapidly transformed to CBZ dihydrate aggregates via PS-SMPT (mostly within 1 min). In contrast, in the presence of 0.1% HPMC, supersaturation was observed for CBZ-SUC, CBZ-ADP, CBZ-SAC, and CBZ-NCT but not for CBZ-MAL and CBZ-GLA. The cocrystals with lower solubility coformers tended to induce higher supersaturation in the bulk phase. The PS-SMPT of CBZ-SUC, CBZ-ADP, and CBZ-SAC was slowed down by HPMC. By suppressing PS-SMPT, the cocrystals exhibited its supersaturation potential, depending on the properties of each coformer. To take advantage of the supersaturation potential of cocrystals to improve oral drug absorption, it is important to suppress particle surface SMPT in addition to bulk phase SMPT.
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Affiliation(s)
- Maaya Omori
- Molecular Pharmaceutics Lab., College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
| | - Tomohiro Watanabe
- Molecular Pharmaceutics Lab., College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
| | - Taiga Uekusa
- Molecular Pharmaceutics Lab., College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
| | - Jumpei Oki
- Molecular Pharmaceutics Lab., College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
| | - Daisuke Inoue
- Molecular Pharmaceutics Lab., College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
| | - Kiyohiko Sugano
- Molecular Pharmaceutics Lab., College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
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40
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Ouiyangkul P, Tantishaiyakul V, Hirun N. Exploring potential coformers for oxyresveratrol using principal component analysis. Int J Pharm 2020; 587:119630. [DOI: 10.1016/j.ijpharm.2020.119630] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/25/2020] [Accepted: 07/06/2020] [Indexed: 01/27/2023]
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41
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Kumari N, Ghosh A. Cocrystallization: Cutting Edge Tool for Physicochemical Modulation of Active Pharmaceutical Ingredients. Curr Pharm Des 2020; 26:4858-4882. [PMID: 32691702 DOI: 10.2174/1381612826666200720114638] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 05/16/2020] [Indexed: 02/08/2023]
Abstract
Cocrystallization is a widely accepted and clinically relevant technique that has prospered very well over the past decades to potentially modify the physicochemical properties of existing active pharmaceutic ingredients (APIs) without compromising their therapeutic benefits. Over time, it has become an integral part of the pre-formulation stage of drug development because of its ability to yield cocrystals with improved properties in a way that other traditional methods cannot easily achieve. Cocrystals are solid crystalline materials composed of two or more than two molecules which are non-covalently bonded in the same crystal lattice. Due to the continuous efforts of pharmaceutical scientists and crystal engineers, today cocrystals have emerged as a cutting edge tool to modulate poor physicochemical properties of APIs such as solubility, permeability, bioavailability, improving poor mechanical properties and taste masking. The success of cocrystals can be traced back by looking at the number of products that are getting regulatory approval. At present, many cocrystals have obtained regulatory approval and they successfully made into the market place followed by a fair number of cocrystals that are currently in the clinical phases. Considering all these facts about cocrystals, the formulation scientists have been inspired to undertake more relevant research to extract out maximum benefits. Here in this review cocrystallization technique will be discussed in detail with respect to its background, different synthesis approaches, synthesis mechanism, application and improvements in drug delivery systems and its regulatory perspective.
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Affiliation(s)
- Nimmy Kumari
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi - 835215, Jharkhand, India
| | - Animesh Ghosh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi - 835215, Jharkhand, India
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42
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Topić F, Friščić T. No regioselectivity for the steroid α-face in cocrystallization of exemestane with aromatic cocrystal formers based on phenanthrene and pyrene. CAN J CHEM 2020. [DOI: 10.1139/cjc-2020-0073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The anti-cancer steroidal drug exemestane presents significantly different behavior in cocrystallization with arenes compared with the previously explored steroid progesterone. Mechanochemical and solution-based cocrystallization of exemestane with hydroxy derivatives of phenanthrene and pyrene leads to the formation of cocrystals exhibiting clear O–H···O type arene-steroid hydrogen bonds. So far, exemestane and 1-hydroxypyrene have been observed to form only one type of cocrystal, with the 1:1 stoichiometric ratio of the two components. However, there are two stoichiometric variations of the cocrystal of 9-hydroxyphenanthrene and exemestane, with the arene:steroid stoichiometric ratio of either 1:1 or 1:2. Importantly, although cocrystallization of progesterone with the same arene cocrystal formers was previously reported to take place regioselectively through α···π contacts between the α-face of the steroid and the π-electron surface of the arene, the herein explored cocrystals of exemestane reveal α···π and β···π contacts, as well as sidewise interactions involving the arene π-system and different edges of the steroid molecule. The loss of regioselectivity for the steroid α-face in cocrystallization with the two monohydroxylated arenes is tentatively explained by the highly positive electrostatic surface potential of the steroid β-face and a diminished number of C–H groups on the α-face of exemestane compared with progesterone.
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Affiliation(s)
- Filip Topić
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
| | - Tomislav Friščić
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
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43
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Omori M, Uekusa T, Oki J, Inoue D, Sugano K. Solution-mediated phase transformation at particle surface during cocrystal dissolution. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101566] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Aitipamula S, Das S. Cocrystal formulations: A case study of topical formulations consisting of ferulic acid cocrystals. Eur J Pharm Biopharm 2020; 149:95-104. [DOI: 10.1016/j.ejpb.2020.01.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/15/2020] [Accepted: 01/31/2020] [Indexed: 12/11/2022]
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45
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Martin F, Pop M, Kacso I, Grosu IG, Miclăuş M, Vodnar D, Lung I, Filip GA, Olteanu ED, Moldovan R, Nagy A, Filip X, Bâldea I. Ketoconazole- p-aminobenzoic Acid Cocrystal: Revival of an Old Drug by Crystal Engineering. Mol Pharm 2020; 17:919-932. [PMID: 31986050 DOI: 10.1021/acs.molpharmaceut.9b01178] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The 1:1 cocrystal of the antifungal agent ketoconazole with p-aminobenzoic acid was successfully crystallized and systematically characterized by a physical and pharmacological point of view. Crystal structure determination confirmed the cocrystal identity, giving full insight in its crystal packing and degree of disorder. Powder dissolution measurements revealed a 10-fold aqueous solubility increase that induces a 6.7-fold oral bioavailability improvement compared to ketoconazole. In vitro cell assays showed a good toxicity profile of the cocrystal with lower oxidative stress and inflammation and enhanced antifungal activity against several Candida species. The in vivo study of the cocrystal indicated similar pharmacokinetic profiles and liver toxicity with increased transaminases, as reported for ketoconazole. Notably, besides minor signs of inflammation, no morphological changes in liver parenchyma or signs of fibrosis and necrosis were detected. The enhanced solubility and oral bioavailability of the cocrystal over ketoconazole, together with the improved antifungal activity and good in vitro/in vivo toxicity, indicate its potential use as an alternative antifungal agent to the parent drug. Our results bring evidence of cocrystallization as a successful approach for bioavailability improvement of poorly soluble drugs.
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Affiliation(s)
- Flavia Martin
- Molecular and Biomolecular Physics Department, National Institute for R&D of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Mihaela Pop
- TeraCrystal, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Irina Kacso
- Molecular and Biomolecular Physics Department, National Institute for R&D of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Ioana Georgeta Grosu
- Molecular and Biomolecular Physics Department, National Institute for R&D of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Maria Miclăuş
- Molecular and Biomolecular Physics Department, National Institute for R&D of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Dan Vodnar
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania
| | - Ildiko Lung
- Physics of Nanostructured Systems, National Institute for R&D of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Gabriela Adriana Filip
- Department of Physiology, Iuliu Haţieganu University of Medicine and Pharmacy, Clinicilor 1, 400006 Cluj-Napoca, Romania
| | - Elena Diana Olteanu
- Department of Physiology, Iuliu Haţieganu University of Medicine and Pharmacy, Clinicilor 1, 400006 Cluj-Napoca, Romania
| | - Remus Moldovan
- Department of Physiology, Iuliu Haţieganu University of Medicine and Pharmacy, Clinicilor 1, 400006 Cluj-Napoca, Romania
| | - Andras Nagy
- Department of Toxicology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania
| | - Xenia Filip
- Molecular and Biomolecular Physics Department, National Institute for R&D of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Ioana Bâldea
- Department of Physiology, Iuliu Haţieganu University of Medicine and Pharmacy, Clinicilor 1, 400006 Cluj-Napoca, Romania
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Zhao X, Li Q, Wang C, Hu S, He X, Sun CC. Simultaneous taste-masking and oral bioavailability enhancement of Ligustrazine by forming sweet salts. Int J Pharm 2020; 577:119089. [PMID: 32001292 DOI: 10.1016/j.ijpharm.2020.119089] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 01/20/2020] [Accepted: 01/25/2020] [Indexed: 02/07/2023]
Abstract
Ligustrazine (or Tetramethylpyrazine, TMP) is an active pharmaceutical ingredient that faces the challenges of bitter taste and low oral bioavailability by the commercial phosphate salt (TMP-Pho). We tackled these challenges by forming salts with two sweeteners, acesulfame (Acs) and saccharine (Sac). Both salts effectively masked the bitter taste of TMP. Compared to TMP-Pho, TMP-Sac shows 43% lower solubility and 11% lower permeability while TMP-Acs shows higher (two-fold) solubility but 24% lower permeability. Both TMP-Acs and TMP-Sac exhibited approximately 40% higher bioavailability through reducing the rate of TMP absorption. Thus, salt formation with both sweeteners simultaneously addressed the challenges brought about by the bitter taste and lower bioavailability of TMP.
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Affiliation(s)
- Xinghua Zhao
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China
| | - Qiang Li
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China
| | - Chenguang Wang
- Pharmaceutical Materials Science and Engineering Laboratory, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA
| | - Shenye Hu
- Pharmaceutical Materials Science and Engineering Laboratory, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA
| | - Xin He
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China.
| | - Changquan Calvin Sun
- Pharmaceutical Materials Science and Engineering Laboratory, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA.
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Budhwar V, Dutt B, Choudhary M. Cocrystallization: An innovative route toward better medication. JOURNAL OF REPORTS IN PHARMACEUTICAL SCIENCES 2020. [DOI: 10.4103/jrptps.jrptps_103_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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48
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Dissolution Advantage of Nitazoxanide Cocrystals in the Presence of Cellulosic Polymers. Pharmaceutics 2019; 12:pharmaceutics12010023. [PMID: 31881696 PMCID: PMC7022799 DOI: 10.3390/pharmaceutics12010023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/19/2019] [Accepted: 12/22/2019] [Indexed: 12/26/2022] Open
Abstract
The effect of hydroxypropyl methylcellulose (HPMC) and methylcellulose (Methocel® 60 HG) on the dissolution behavior of two cocrystals derived from nitazoxanide (NTZ), viz., nitazoxanide-glutaric acid (NTZ-GLU, 1:1) and nitazoxanide-succinic acid (NTZ-SUC, 2:1), was explored. Powder dissolution experiments under non-sink conditions showed similar dissolution profiles for the cocrystals and pure NTZ. However, pre-dissolved cellulosic polymer in the phosphate dissolution medium (pH 7.5) modified the dissolution profile of NTZ when starting from the cocrystals, achieving transient drug supersaturation. Subsequent dissolution studies under sink conditions of polymer-based pharmaceutical powder formulations with NTZ-SUC cocrystals gave a significant improvement of the apparent solubility of NTZ when compared with analogous formulations of pure NTZ and the physical mixture of NTZ and SUC. Scanning electron microscopy and powder X-ray diffraction analysis of samples recovered after the powder dissolution studies showed that the cocrystals undergo fast dissolution, drug supersaturation and precipitation both in the absence and presence of polymer, suggesting that the solubilization enhancement is due to polymer-induced delay of nucleation and crystal growth of the less soluble NTZ form. The study demonstrates that the incorporation of an appropriate excipient in adequate concentration can be a key factor for inducing and maintaining the solubilization of poorly soluble drugs starting from co-crystallized solid forms. In such a way, cocrystals can be suitable for the development of solid dosage forms with improved bioavailability and efficacy in the treatment of important parasitic and viral diseases, among others.
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49
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Huang Y, Kuminek G, Roy L, Cavanagh KL, Yin Q, Rodríguez-Hornedo N. Cocrystal Solubility Advantage Diagrams as a Means to Control Dissolution, Supersaturation, and Precipitation. Mol Pharm 2019; 16:3887-3895. [PMID: 31318567 PMCID: PMC10625315 DOI: 10.1021/acs.molpharmaceut.9b00501] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cocrystals are often more soluble than needed and pose unnecessary risks for precipitation of less soluble forms of the drug during processing and dissolution. Such conversions lead to erratic cocrystal behavior and nullify the cocrystal solubility advantage over parent drug (SA = Scocrystal/Sdrug). This work demonstrates a quantitative method for additive selection to control cocrystal disproportionation based on cocrystal solubility advantage (SA) diagrams. The tunability of cocrystal SA is dependent on the selective drug-solubilizing power of surfactants (SPdrug = (ST/Saq)drug). This cocrystal property is used to generate SA-SP diagrams that facilitate surfactant selection and provide a framework for evaluating how SA influences drug concentration-time profiles associated with cocrystal dissolution, drug supersaturation, and precipitation (DSP). Experimental results with indomethacin-saccharin cocrystal and surfactants (sodium lauryl sulfate, Brij, and Myrj) demonstrate the log-linear relationship characteristic of SA-SP diagrams and the dependence of σmax and dissolution area under the curve (AUC) on SA with characteristic maxima at a threshold supersaturation where drug nucleation occurs. This approach is expected to streamline cocrystal formulation as it facilitates additive selection by considering the interplay between thermodynamic (SA) and kinetic (DSP) processes.
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Affiliation(s)
- Yaohui Huang
- School of Chemical Engineering and Technology, Key Laboratory for Modern Drug Delivery and High Efficiency , Tianjin University , Tianjin 300072 , People's Republic of China
| | - Gislaine Kuminek
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109-1065 , United States
| | - Lilly Roy
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109-1065 , United States
| | - Katie L Cavanagh
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109-1065 , United States
| | - Qiuxiang Yin
- School of Chemical Engineering and Technology, Key Laboratory for Modern Drug Delivery and High Efficiency , Tianjin University , Tianjin 300072 , People's Republic of China
| | - Naír Rodríguez-Hornedo
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109-1065 , United States
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50
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Huang S, Xue Q, Xu J, Ruan S, Cai T. Simultaneously Improving the Physicochemical Properties, Dissolution Performance, and Bioavailability of Apigenin and Daidzein by Co-Crystallization With Theophylline. J Pharm Sci 2019; 108:2982-2993. [DOI: 10.1016/j.xphs.2019.04.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 04/03/2019] [Accepted: 04/10/2019] [Indexed: 11/15/2022]
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