1
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Shao S, Stocker MW, Zarrella S, Korter TM, Singh A, Healy AM. In Situ Cocrystallization via Spray Drying with Polymer as a Strategy to Prevent Cocrystal Dissociation. Mol Pharm 2023; 20:4770-4785. [PMID: 37595572 PMCID: PMC10481393 DOI: 10.1021/acs.molpharmaceut.3c00564] [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: 06/30/2023] [Revised: 08/14/2023] [Accepted: 08/14/2023] [Indexed: 08/20/2023]
Abstract
The aim of the present study was to investigate how different polymers affect the dissociation of cocrystals prepared by co-spray-drying active pharmaceutical ingredient (API), coformer, and polymer. Diclofenac acid-l-proline cocrystal (DPCC) was selected in this study as a model cocrystal due to its previously reported poor physical stability in a high-humidity environment. Polymers investigated include polyvinylpyrrolidone (PVP), poly(1-vinylpyrrolidone-co-vinyl acetate) (PVPVA), hydroxypropyl methyl cellulose, hydroxypropylmethylcellulose acetate succinate, ethyl cellulose, and Eudragit L-100. Terahertz Raman spectroscopy (THz Raman) and powder X-ray diffraction (PXRD) were used to monitor the cocrystal dissociation rate in a high-humidity environment. A Raman probe was used in situ to monitor the extent of the dissociation of DPCC and DPCC in crystalline solid dispersions (CSDs) with polymer when exposed to pH 6.8 phosphate buffer and water. The solubility of DPCC and solid dispersions of DPCC in pH 6.8 phosphate buffer and water was also measured. The dissociation of DPCC was water-mediated, and more than 60% of DPCC dissociated in 18 h at 40 °C and 95% RH. Interestingly, the physical stability of the cocrystal was effectively improved by producing CSDs with polymers. The inclusion of just 1 wt % polymer in a CSD with DPCC protected the cocrystal from dissociation over 18 h under the same conditions. Furthermore, the CSD with PVPVA was still partially stable, and the CSD with PVP was stable (undissociated) after 7 days. The superior stability of DPCC in CSDs with PVP and PVPVA was also demonstrated when systems were exposed to water or pH 6.8 phosphate buffer and resulted in higher dynamic solubility of the CSDs compared to DPCC alone. The improvement in physical stability of the cocrystal in CSDs was thought to be due to an efficient mixing between polymer and cocrystal at the molecular level provided by spray drying and in situ gelling of polymer. It is hypothesized that polymer chains could undergo gelling in situ and form a physical barrier, preventing cocrystal interaction with water, which contributes to slowing down the water-mediated dissociation.
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Affiliation(s)
- ShiZhe Shao
- School
of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin D02 PN40, Ireland
- SSPC,
the Science Foundation Ireland Research Centre for Pharmaceuticals, Trinity College Dublin, Dublin D02 PN40, Ireland
| | - Michael W. Stocker
- School
of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin D02 PN40, Ireland
- SSPC,
the Science Foundation Ireland Research Centre for Pharmaceuticals, Trinity College Dublin, Dublin D02 PN40, Ireland
- School
of Chemical and Bioprocess Engineering, University College Dublin, Dublin D04 V1W8, Ireland
| | - Salvatore Zarrella
- Department
of Chemistry, Syracuse University, 1-014 Center for Science and Technology, Syracuse, New York 13244, United States
| | - Timothy M. Korter
- Department
of Chemistry, Syracuse University, 1-014 Center for Science and Technology, Syracuse, New York 13244, United States
| | | | - Anne Marie Healy
- School
of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin D02 PN40, Ireland
- SSPC,
the Science Foundation Ireland Research Centre for Pharmaceuticals, Trinity College Dublin, Dublin D02 PN40, Ireland
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2
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Nga Wong S, Low KH, Lam Poon Y, Zhang X, Wan Chan H, Fung Chow S. Synthesis of the first remdesivir cocrystal: design, characterization, and therapeutic potential for pulmonary delivery. Int J Pharm 2023; 640:122983. [PMID: 37121494 DOI: 10.1016/j.ijpharm.2023.122983] [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] [Received: 01/23/2023] [Revised: 04/11/2023] [Accepted: 04/21/2023] [Indexed: 05/02/2023]
Abstract
While cocrystal engineering is an emerging formulation strategy to overcome drug delivery challenges, its therapeutic potential in non-oral applications remains not thoroughly explored. We herein report for the first time the successful synthesis of a cocrystal for remdesivir (RDV), an antiviral drug with broad-spectrum activities against RNA viruses. The RDV cocrystal was prepared with salicylic acid (SA) via combined liquid-assisted grinding (LAG) and thermal annealing. Formation of RDV-SA was found to be a thermally activated process, where annealing at high temperature after grinding was a prerequisite to facilitate the cocrystal growth from an amorphous intermediate, rendering it elusive under ambient preparing conditions. Through powder X-ray analysis with Rietveld refinement, the three-dimensional molecular structure of RDV-SA was resolved. The thermally annealed RDV-SA produced by LAG crystalized in a non-centrosymmetric monoclinic space group P21 with a unit cell volume of 1826.53(17) Å3, accommodating one pair of RDV and SA molecules in the asymmetric unit. The cocrystal formation was also characterized by differential scanning calorimetry, solid-state nuclear magnetic resonance, and Fourier-transform infrared spectroscopy. RDV-SA was further developed as inhaled dry powders by spray drying for potential COVID-19 therapy. The optimized RDV-SA dry powders exhibited a mass median aerodynamic diameter of 4.33 ± 0.2 μm and fine particle fraction of 41.39 ± 4.25 %, indicating the suitability for pulmonary delivery. Compared with the raw RDV, RDV-SA displayed a 15.43-fold higher fraction of release in simulated lung fluid at 120 min (p =0.0003). RDV-SA was safe in A549 cells without any in vitro cytotoxicity observed in the RDV concentration from 0.05 to 10 µM.
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Affiliation(s)
- Si Nga Wong
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Kam-Hung Low
- Department of Chemistry, Faculty of Science, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Yi Lam Poon
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Xinyue Zhang
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Ho Wan Chan
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Shing Fung Chow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China; Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, Hong Kong SAR, China.
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3
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Kumbhar P, Kolekar K, Khot C, Dabhole S, Salawi A, Sabei FY, Mohite A, Kole K, Mhatre S, Jha NK, Manjappa A, Singh SK, Dua K, Disouza J, Patravale V. Co-crystal nanoarchitectonics as an emerging strategy in attenuating cancer: Fundamentals and applications. J Control Release 2023; 353:1150-1170. [PMID: 36566843 DOI: 10.1016/j.jconrel.2022.12.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/27/2022]
Abstract
Cancer ranks as the second foremost cause of death in various corners of the globe. The clinical uses of assorted anticancer therapeutics have been limited owing to the poor physicochemical attributes, pharmacokinetic performance, and lethal toxicities. Various sorts of co-crystals or nano co-crystals or co-crystals-laden nanocarriers have presented great promise in targeting cancer via improved physicochemical attributes, pharmacokinetic performance, and reduced toxicities. These systems have also demonstrated the controlled cargo release and passive targeting via enhanced permeation and retention (EPR) effect. In addition, regional delivery of co-crystals via inhalation and transdermal route displayed remarkable potential in targeting lung and skin cancer effectively. However, more research is required on the use of co-crystals in cancer and their commercialization. The present review mainly emphasizes co-crystals as emerging avenues in the treatment of various cancers by modulating the physicochemical and pharmacokinetic attributes of approved anticancer therapeutics. The worth of co-crystals in cancer treatment, computational paths in the co-crystals screening, diverse experimental techniques of co-crystals fabrication, and sorts of co-crystals and their noteworthy applications in targeting cancer are also discussed. Besides, the game changer approaches like nano co-crystals and co-crystals-laden nanocarriers, and co-crystals in regional delivery in cancer are also explained with reported case studies. Furthermore, regulatory directives for pharmaceutical co-crystals and their scale-up, and challenges are also highlighted with concluding remarks and future initiatives. In essence, co-crystals and nano co-crystals emerge to be a promising strategy in overwhelming cancers through improving anticancer efficacy, safety, patient compliance, and reducing the cost.
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Affiliation(s)
- Popat Kumbhar
- Department of Pharmaceutics, Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala, Dist: Kolhapur, Maharashtra 416113, India
| | - Kaustubh Kolekar
- Department of Pharmaceutics, Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala, Dist: Kolhapur, Maharashtra 416113, India
| | - Chinmayee Khot
- Department of Pharmaceutics, Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala, Dist: Kolhapur, Maharashtra 416113, India
| | - Swati Dabhole
- Department of Pharmaceutics, Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala, Dist: Kolhapur, Maharashtra 416113, India
| | - Ahmad Salawi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
| | - Fahad Y Sabei
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
| | - Akshay Mohite
- Department of Pharmaceutics, Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala, Dist: Kolhapur, Maharashtra 416113, India
| | - Kapil Kole
- Department of Pharmaceutics, Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala, Dist: Kolhapur, Maharashtra 416113, India
| | - Susmit Mhatre
- Department of Pharmacy Sciences, School of Pharmacy and Health Professionals, Creighton University, Omaha, NE 68178, USA
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida, 201310, Uttar Pradesh, India; Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali 140413, India; Department of Biotechnology, School of Applied & Life Sciences (SALS), Uttaranchal University, Dehradun 248007, India
| | - Arehalli Manjappa
- Department of Pharmaceutics, Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala, Dist: Kolhapur, Maharashtra 416113, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW 2007, Australia; Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun 248007, India
| | - John Disouza
- Department of Pharmaceutics, Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala, Dist: Kolhapur, Maharashtra 416113, India.
| | - Vandana Patravale
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, Maharashtra 400019, India.
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4
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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: 95] [Impact Index Per Article: 47.5] [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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5
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O'Sullivan A, Long B, Verma V, Ryan KM, Padrela L. Solid-State and Particle Size Control of Pharmaceutical Cocrystals using Atomization-Based Techniques. Int J Pharm 2022; 621:121798. [PMID: 35525471 DOI: 10.1016/j.ijpharm.2022.121798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 12/12/2022]
Abstract
Poor bioavailability and aqueous solubility represent a major constraint during the development of new API molecules and can influence the impact of new medicines or halt their approval to the market. Cocrystals offer a novel and competitive advantage over other conventional methods with respect towards the substantial improvement in solubility profiles relative to the single-API crystals. Furthermore, the production of such cocrystals through atomization-based methods allow for greater control, with respect to particle size reduction, to further increase the solubility of the API. Such atomization-based methods include supercritical fluid methods, conventional spray drying and electrohydrodynamic atomization/electrospraying. The influence of process parameters such as solution flow rates, pressure and solution concentration, in controlling the solid-state and final particle size are discussed in this review with respect to atomization-based methods. For the last decade, literature has been attempting to catch-up with new regulatory rulings regarding the classification of cocrystals, due in part to data sparsity. In recent years, there has been an increase in cocrystal publications, specifically employing atomization-based methods. This review considers the benefits to employing atomization-based methods for the generation of pharmaceutical cocrystals, examines the most recent regulatory changes regarding cocrystals and provides an outlook towards the future of this field.
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Affiliation(s)
- Aaron O'Sullivan
- SSPC Research Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Barry Long
- SSPC Research Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Vivek Verma
- SSPC Research Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Kevin M Ryan
- SSPC Research Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Luis Padrela
- SSPC Research Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland.
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6
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Wong SN, Weng J, Ip I, Chen R, Lakerveld R, Telford R, Blagden N, Scowen IJ, Chow SF. Rational Development of a Carrier-Free Dry Powder Inhalation Formulation for Respiratory Viral Infections via Quality by Design: A Drug-Drug Cocrystal of Favipiravir and Theophylline. Pharmaceutics 2022; 14:300. [PMID: 35214034 PMCID: PMC8876093 DOI: 10.3390/pharmaceutics14020300] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/18/2022] [Accepted: 01/24/2022] [Indexed: 02/05/2023] Open
Abstract
Formulating pharmaceutical cocrystals as inhalable dosage forms represents a unique niche in effective management of respiratory infections. Favipiravir, a broad-spectrum antiviral drug with potential pharmacological activity against SARS-CoV-2, exhibits a low aqueous solubility. An ultra-high oral dose is essential, causing low patient compliance. This study reports a Quality-by-Design (QbD)-guided development of a carrier-free inhalable dry powder formulation containing a 1:1 favipiravir-theophylline (FAV-THP) cocrystal via spray drying, which may provide an alternative treatment strategy for individuals with concomitant influenza infections and chronic obstructive pulmonary disease/asthma. The cocrystal formation was confirmed by single crystal X-ray diffraction, powder X-ray diffraction, and the construction of a temperature-composition phase diagram. A three-factor, two-level, full factorial design was employed to produce the optimized formulation and study the impact of critical processing parameters on the resulting median mass aerodynamic diameter (MMAD), fine particle fraction (FPF), and crystallinity of the spray-dried FAV-THP cocrystal. In general, a lower solute concentration and feed pump rate resulted in a smaller MMAD with a higher FPF. The optimized formulation (F1) demonstrated an MMAD of 2.93 μm and an FPF of 79.3%, suitable for deep lung delivery with no in vitro cytotoxicity observed in A549 cells.
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Affiliation(s)
- Si Nga Wong
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (S.N.W.); (J.W.); (I.I.)
| | - Jingwen Weng
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (S.N.W.); (J.W.); (I.I.)
| | - Ignatius Ip
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (S.N.W.); (J.W.); (I.I.)
| | - Ruipeng Chen
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; (R.C.); (R.L.)
| | - Richard Lakerveld
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; (R.C.); (R.L.)
| | - Richard Telford
- School of Chemistry and Biosciences, University of Bradford, Bradford BD7 1DP, UK;
| | | | - Ian J. Scowen
- School of Chemistry, University of Lincoln, Lincoln LN6 7TS, UK;
| | - Shing Fung Chow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (S.N.W.); (J.W.); (I.I.)
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, Hong Kong, China
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7
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Al-Obaidi H, Granger A, Hibbard T, Opesanwo S. Pulmonary Drug Delivery of Antimicrobials and Anticancer Drugs Using Solid Dispersions. Pharmaceutics 2021; 13:1056. [PMID: 34371747 PMCID: PMC8309119 DOI: 10.3390/pharmaceutics13071056] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 01/03/2023] Open
Abstract
It is well established that currently available inhaled drug formulations are associated with extremely low lung deposition. Currently available technologies alleviate this low deposition problem via mixing the drug with inert larger particles, such as lactose monohydrate. Those inert particles are retained in the inhalation device or impacted in the throat and swallowed, allowing the smaller drug particles to continue their journey towards the lungs. While this seems like a practical approach, in some formulations, the ratio between the carrier to drug particles can be as much as 30 to 1. This limitation becomes more critical when treating lung conditions that inherently require large doses of the drug, such as antibiotics and antivirals that treat lung infections and anticancer drugs. The focus of this review article is to review the recent advancements in carrier free technologies that are based on coamorphous solid dispersions and cocrystals that can improve flow properties, and help with delivering larger doses of the drug to the lungs.
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Affiliation(s)
- Hisham Al-Obaidi
- The School of Pharmacy, University of Reading, Reading RG6 6AD, UK; (A.G.); (T.H.); (S.O.)
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8
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A Review of Pharmaceutical Nano-Cocrystals: A Novel Strategy to Improve the Chemical and Physical Properties for Poorly Soluble Drugs. CRYSTALS 2021. [DOI: 10.3390/cryst11050463] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nowadays, many commercial drugs have poor solubility and bioavailability. Cocrystals are formulated to modulate active pharmaceutical ingredients’ properties with improved solubility, dissolution, and bioavailability compared to their pristine individual components in the pharmaceutical industry. Nano-cocrystals, crystals in the nano range, can further enhance these properties because of not only the cocrystal structure, but also the large surface to volume ratio of nanocrystals. Even though there are many studies on cocrystals, the research of pharmaceutical nano-cocrystals is still in the initial stage. Thus, it is necessary to conduct a systematic study on pharmaceutical nano-cocrystals. In this review, the possible preparation approaches of nano-cocrystals have been reported. To have a comprehensive understanding of nano-cocrystals, some analytical techniques and characterizations will be discussed in detail. In addition, the feasible therapeutic application of nano-cocrystals will be presented. This work is expected to provide guidance to develop new nano-cocrystals with commercial value in the pharmaceutical industry.
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9
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Dias JL, Lanza M, Ferreira SR. Cocrystallization: A tool to modulate physicochemical and biological properties of food-relevant polyphenols. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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10
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Ross SA, Hurt AP, Antonijevic M, Bouropoulos N, Ward A, Basford P, McAllister M, Douroumis D. Continuous Manufacture and Scale-Up of Theophylline-Nicotinamide Cocrystals. Pharmaceutics 2021; 13:419. [PMID: 33804705 PMCID: PMC8004052 DOI: 10.3390/pharmaceutics13030419] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/12/2021] [Accepted: 03/14/2021] [Indexed: 12/02/2022] Open
Abstract
The aim of the study was the manufacturing and scale-up of theophylline-nicotinamide (THL-NIC) pharmaceutical cocrystals processed by hot-melt extrusion (HME). The barrel temperature profile, feed rate and screw speed were found to be the critical processing parameters with a residence time of approximately 47 s for the scaled-up batches. Physicochemical characterization using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and X-ray diffraction of bulk and extruded materials revealed the formation of high purity cocrystals (98.6%). The quality of THL-NIC remained unchanged under accelerated stability conditions.
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Affiliation(s)
- Steven A. Ross
- Faculty of Engineering and Science, University of Greenwich, Medway Campus, Chatham Maritime, Kent ME4 4TB, UK; (S.A.R.); (A.P.H.); (M.A.)
| | - Andrew P. Hurt
- Faculty of Engineering and Science, University of Greenwich, Medway Campus, Chatham Maritime, Kent ME4 4TB, UK; (S.A.R.); (A.P.H.); (M.A.)
| | - Milan Antonijevic
- Faculty of Engineering and Science, University of Greenwich, Medway Campus, Chatham Maritime, Kent ME4 4TB, UK; (S.A.R.); (A.P.H.); (M.A.)
| | - Nicolaos Bouropoulos
- Department of Materials Science, University of Patras, Rio, 26504 Patras, Greece;
- Foundation for Research and Technology Hellas, Institute of Chemical Engineering and High Temperature, Chemical Processes, 26504 Patras, Greece
| | - Adam Ward
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, West Yorkshire HD1 3DH, UK;
| | - Pat Basford
- Pfizer Global Research & Development, Ramsgate Road, Sandwich CT13 9NJ, UK; (P.B.); (M.M.)
| | - Mark McAllister
- Pfizer Global Research & Development, Ramsgate Road, Sandwich CT13 9NJ, UK; (P.B.); (M.M.)
| | - Dennis Douroumis
- Faculty of Engineering and Science, University of Greenwich, Medway Campus, Chatham Maritime, Kent ME4 4TB, UK; (S.A.R.); (A.P.H.); (M.A.)
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11
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Brunaugh AD, Sharma S, Smyth H. Inhaled fixed-dose combination powders for the treatment of respiratory infections. Expert Opin Drug Deliv 2021; 18:1101-1115. [PMID: 33632051 DOI: 10.1080/17425247.2021.1886074] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Respiratory infections are a major cause of morbidity and mortality. As an alternative to systemic drug administration, inhaled drug delivery can produce high drug concentrations in the lung tissue to overcome resistant bacteria. The development of inhaled fixed-dose combination powders (I-FDCs) is promising next step in this field, as it would enable simultaneous drug-drug or drug-adjuvant delivery at the site of infection, thereby promoting synergistic activity and improving patient compliance. AREAS COVERED This review covers the clinical and pharmaceutical rationales for the development of I-FDCs for the treatment of respiratory infections, relevant technologies for particle and powder generation, and obstacles which must be addressed to achieve regulatory approval. EXPERT OPINION I-FDCs have been widely successful in the treatment of asthma and chronic obstructive pulmonary disease; however, application of I-FDCs towards the treatment of respiratory infections carries additional challenges related to the high dose requirements and physicochemical characteristics of anti-infective drugs. At present, co-spray drying is an especially promising approach for the development of composite fixed-dose anti-infective particles for inhalation. Though the majority of fixed-dose research has thus far focused on the combination of multiple antibiotics, future work may shift to the additional inclusion of immunomodulatory agents or repurposed non-antibiotics.
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Affiliation(s)
| | - Shivam Sharma
- Department of Pharmacy & Pharmacology, University of Bath, Bath, UK
| | - Hugh Smyth
- College of Pharmacy, University of Texas at Austin, Austin, USA
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12
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Ngilirabanga JB, Samsodien H. Pharmaceutical co‐crystal: An alternative strategy for enhanced physicochemical properties and drug synergy. NANO SELECT 2021. [DOI: 10.1002/nano.202000201] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
| | - Halima Samsodien
- School of Pharmacy, Faculty of Science University of the Western Cape Bellville South Africa
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13
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Radha-Rani E, Venkata-Radha G. Engineering cocrystals of Paliperidone with enhanced solubility and dissolution characteristics. ARHIV ZA FARMACIJU 2021. [DOI: 10.5937/arhfarm71-32997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
In the present study, co-crystals (CCs) of Paliperidone (PPD) with coformers like benzoic acid (BA) and P-amino benzoic acid (PABA) were synthesized and characterized to improve the physicochemical properties and dissolution rate. CCs were prepared by the solvent evaporation (SE) technique and were compared with the products formed by neat grinding (NG) and liquid assisted grinding (LAG) in their enhancement of solubility. The formation of CCs was confirmed by the IR spectroscopy, powder X-ray diffraction and thermal analysis methods. The saturation solubility studies indicate that the aqueous solubility of PPD-BA and PPD-PABA CCs was significantly improved to 1.343±0.162mg/ml and 1.964±0.452mg/ml, respectively, in comparison with the PPD solubility of 0.473mg/ml. This increase in solubility is 2.83-and 3.09-fold, respectively. PPD exhibited a poor dissolution of 37.8% in 60min, while the dissolution of the CCs improved tremendously to 96.07% and 89.65% in 60min. CCs of PPD with BA and PABA present a novel approach to overcome the solubility challenges of poorly water-soluble drug PPD.
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Wong SN, Chen YCS, Xuan B, Sun CC, Chow SF. Cocrystal engineering of pharmaceutical solids: therapeutic potential and challenges. CrystEngComm 2021. [DOI: 10.1039/d1ce00825k] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This highlight presents an overview of pharmaceutical cocrystal production and its potential in reviving problematic properties of drugs in different dosage forms. The challenges and future outlook of its translational development are discussed.
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Affiliation(s)
- Si Nga Wong
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, L2-08B, Laboratory Block, 21 Sassoon Road Pokfulam, Hong Kong SAR, China
| | - Yu Chee Sonia Chen
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, L2-08B, Laboratory Block, 21 Sassoon Road Pokfulam, Hong Kong SAR, China
- Department of Pharmacy, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Bianfei Xuan
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, L2-08B, Laboratory Block, 21 Sassoon Road Pokfulam, Hong Kong SAR, China
| | - Changquan Calvin Sun
- Pharmaceutical Materials Science and Engineering Laboratory, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Shing Fung Chow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, L2-08B, Laboratory Block, 21 Sassoon Road Pokfulam, Hong Kong SAR, China
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, Hong Kong SAR, China
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Ternary Phase Diagram Development and Production of Niclosamide-Urea Co-Crystal by Spray Drying. J Pharm Sci 2020; 110:2063-2073. [PMID: 33285181 DOI: 10.1016/j.xphs.2020.11.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/10/2020] [Accepted: 11/30/2020] [Indexed: 12/18/2022]
Abstract
In this work, a ternary phase diagram was developed for a Niclosamide-urea co-crystal (NCS-UR) in isopropanol (IPA) using a combination of slurry and solvent addition methods. The ternary phase diagram showed that solubility of Niclosamide and urea differed by an order of magnitude in IPA, leading to an incongruently saturating system. Spray drying was explored as a method to generate NCS-UR. Co-crystals with small, uniform particle size were successfully prepared by spray drying from equimolar solutions with yield up to 73%. Co-crystals were phase pure by X-ray powder diffraction (XRPD) and differential scanning calorimetry (DSC) from all conditions explored. Somewhat similar particles were obtained at inlet temperature of 70 °C (mean size of 2.0 μm) compared to 85 °C (2.8-3.4 μm). Based on the TPD, isolating phase pure co-crystal through solution crystallization in IPA would require excess urea. However, spray drying did not require excess co-former. The in-vitro solubility of NCS-UR was compared to anhydrous NCS in biorelevant media. NCS-UR did not give improvement in solubility at 1 h or 24 h. Overall, this work showed that spray drying is a feasible process for preparing phase pure co-crystals for an incongruently saturating system and simultaneously generating micron size particles.
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Focaroli S, Jiang G, O’Connell P, Fahy JV, Healy AM. The Use of a Three-Fluid Atomising Nozzle in the Production of Spray-Dried Theophylline/Salbutamol Sulphate Powders Intended for Pulmonary Delivery. Pharmaceutics 2020; 12:E1116. [PMID: 33233520 PMCID: PMC7699582 DOI: 10.3390/pharmaceutics12111116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/02/2022] Open
Abstract
The aim of this study was to investigate the use of a three-fluid atomising nozzle in a lab-scale spray dryer for the production of dry powders intended for pulmonary delivery. Powders were composed of salbutamol sulphate and theophylline in different weight ratios. The three-fluid nozzle technology enabled powders containing a high theophylline content to be obtained, overcoming the problems associated with its relatively low solubility, by pumping two separate feed solutions (containing the two different active pharmaceutical ingredients (APIs)) into the spray dryer via two separate nozzle channels at different feed rates. The final spray-dried products were characterized in terms of morphology, solid-state properties and aerosolization performance, and were compared with an equivalent formulation prepared using a standard two-fluid atomising nozzle. Results confirmed that most of the powders made using the three-fluid atomising nozzle met the required standards for a dry powder inhaler formulation in terms of physical characteristics; however, aerosolization characteristics require improvement if the powders are to be considered suitable for pulmonary delivery.
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Affiliation(s)
- Stefano Focaroli
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute, Trinity College Dublin, Dublin 2 D02, Ireland; (G.J.); (P.O.); (A.-M.H.)
| | - Guannan Jiang
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute, Trinity College Dublin, Dublin 2 D02, Ireland; (G.J.); (P.O.); (A.-M.H.)
| | - Peter O’Connell
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute, Trinity College Dublin, Dublin 2 D02, Ireland; (G.J.); (P.O.); (A.-M.H.)
| | - John V. Fahy
- Division of Pulmonary and Critical Care Medicine, Department of Medicine and Cardiovascular Research Institute, Health Sciences East, UCSF, 513 Parnassus Avenue, San Francisco, CA 94143, USA;
| | - Anne-Marie Healy
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute, Trinity College Dublin, Dublin 2 D02, Ireland; (G.J.); (P.O.); (A.-M.H.)
- SSPC The SFI Research Centre for Pharmaceuticals, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin 2 D02, Ireland
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Ray E, Vaghasiya K, Sharma A, Shukla R, Khan R, Kumar A, Verma RK. Autophagy-Inducing Inhalable Co-crystal Formulation of Niclosamide-Nicotinamide for Lung Cancer Therapy. AAPS PharmSciTech 2020; 21:260. [PMID: 32944787 DOI: 10.1208/s12249-020-01803-z] [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] [Received: 03/07/2020] [Accepted: 08/25/2020] [Indexed: 12/16/2022] Open
Abstract
Niclosamide (NIC), an anthelminthic drug, is found to be promising in overcoming the problem of various types of drug-resistant cancer. In spite of strong anti-proliferative effect, NIC shows low aqueous solubility, leading to poor bioavailability. To overcome this limitation, and enhance its physicochemical properties and pharmacokinetic profile, we used co-crystallization technique as a promising strategy. In this work, we brought together the crystal and particle engineering at a time using spray drying to enhance physicochemical and aerodynamic properties of co-crystal particle for inhalation purpose. We investigated the formation and evaluation of pharmaceutical co-crystals of niclosamide-nicotinamide (NIC-NCT) prepared by rapid, continuous and scalable spray drying method and compared with conventional solvent evaporation technique. The newly formed co-crystal was evaluated by XRPD, FTIR, Raman spectroscopy and DSC, which showed an indication of formation of H bonds between drug (NIC) and co-former (NCT) as a major binding force in co-crystal development. The particle geometry of co-crystals including spherical shape, size 1-5 μm and aerodynamic properties (ED, 97.1 ± 8.9%; MMAD, 3.61 ± 0.87 μm; FPF, 71.74 ± 6.9% and GSD 1.46) attributes suitable for inhalation. For spray-dried co-crystal systems, an improvement in solubility characteristics (≥ 14.8-fold) was observed, relative to pure drug. To investigate the anti-proliferative activity, NIC-NCT co-crystals were investigated on A549 human lung adenomas cells, which showed a superior cytotoxic activity compared with pure drug. Mechanistically, NIC-NCT co-crystals enhanced autophagic flux in cancer cell which demonstrates autophagy-mediated cell death as shown by confocal microscopy. This technique could help in improving bioavailability of drug, hence reducing the need for high dosages and signifying a novel paradigm for future clinical applications.
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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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Tawfeek HM, Chavan T, Kunda NK. Effect of Spray Drying on Amorphization of Indomethacin Nicotinamide Cocrystals; Optimization, Characterization, and Stability Study. AAPS PharmSciTech 2020; 21:181. [PMID: 32607628 DOI: 10.1208/s12249-020-01732-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/14/2020] [Indexed: 01/16/2023] Open
Abstract
Cocrystals have gained a lot of consideration regarding its superior role in enhancement of solubility and dissolution of the included API. Cocrystals could be converted to coamorphous systems via different techniques like milling and quench cooling; however, the use of spray-drying technique has not been investigated before. So, the aim of this study was to explore the effect of spray drying on the amorphization of indomethacin/nicotinamide, INDNIC, as model cocrystals. Spray-drying operating parameters were optimized using the Taguchi design of experiment for maximum powder yield and low moisture content. The obtained INDNIC spray-dried cocrystals were characterized for their degree of crystallinity, morphology, moisture content, and dissolution performance. In addition, stability study was performed at different temperature and humidity conditions. Experimental design results delineate that spray-drying inlet temperature and cocrystal concentrations as the most influential factors for maximum powder yield and low moisture content. Powder X-ray diffraction and differential scanning calorimetry studies revealed the conversion of INDNIC cocrystals to a partial coamorphous or coamorphous structure without dissociation of INDNIC molecular structure. INDNIC coamorphous powders showed a significantly higher release of IND compared with cocrystals and remain physically stable for 2 months when stored in the refrigerator.
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20
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Tanaka R, Hattori Y, Otsuka M, Ashizawa K. Application of spray freeze drying to theophylline-oxalic acid cocrystal engineering for inhaled dry powder technology. Drug Dev Ind Pharm 2020; 46:179-187. [PMID: 31937148 DOI: 10.1080/03639045.2020.1716367] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Spray freeze drying (SFD) produces suitable particles for the pharmaceutical formulation of dry powders used in dry powder inhalers (DPIs). However, SFD particles have large specific surface area and are partially made up of amorphous solids; this state is hygroscopic and would lead to changes in physicochemical properties by humidity when the particles are stored over the long-term or under high humidity conditions such as in the lungs. This study focused on the application of SFD with a cocrystal technique which can add humidity resistance to the active pharmaceutical ingredients (APIs), and the investigation of the physicochemical properties under high humidity conditions. Cocrystal samples containing theophylline anhydrate (THA) and oxalic acid (OXA) in a molar ratio of 2:1 were prepared by SFD. The crystalline structure, thermal behavior, solid-state, hygroscopicity, stability, and aerodynamic properties were evaluated. Simultaneous in situ measurement by near-infrared and Raman (NIR-Raman) spectroscopy was performed to analyze the humidification process. The SFD sample had a porous particle and an optimal aerodynamic particle size (3.03 µm) although the geometric particle diameter was 7.20 µm. In addition, the sample formed the THAOXA cocrystal with partial coamorphous. The hydration capacity and pseudopolymorphic transformation rate of the SFD sample were much lower than those of THA under conditions of 96.4% relative humidity and 40.0°C temperature because of the cocrystal formation. The reasons were discussed based on the crystalline structure and energy. The SFD technology for cocrystallization would enable the pharmaceutical preparation of DPI products under environmentally friendly conditions.
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Affiliation(s)
- Ryoma Tanaka
- Graduate School of Pharmaceutical Sciences, Musashino University, Tokyo, Japan.,Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN, USA
| | - Yusuke Hattori
- Graduate School of Pharmaceutical Sciences, Musashino University, Tokyo, Japan.,Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
| | - Makoto Otsuka
- Graduate School of Pharmaceutical Sciences, Musashino University, Tokyo, Japan.,Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
| | - Kazuhide Ashizawa
- Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
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21
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Shetty N, Cipolla D, Park H, Zhou QT. Physical stability of dry powder inhaler formulations. Expert Opin Drug Deliv 2020; 17:77-96. [PMID: 31815554 PMCID: PMC6981243 DOI: 10.1080/17425247.2020.1702643] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/05/2019] [Indexed: 12/29/2022]
Abstract
Introduction: Dry powder inhalers (DPIs) are popular for pulmonary drug delivery. Various techniques have been employed to produce inhalation drug particles and improve the delivery efficiency of DPI formulations. Physical stability of these DPI formulations is critical to ensure the delivery of a reproducible dose to the airways over the shelf-life.Areas covered: This review focuses on the impact of solid-state stability on aerosolization performance of DPI drug particles manufactured by powder production approaches and particle-engineering techniques. It also highlights the different analytical tools that can be used to characterize the physical instability originating from production and storage.Expert opinion: A majority of the DPI literature focuses on the effects of physico-chemical properties such as size, morphology, and density on aerosolization. While little has been reported on the physical stability, particularly the stability of engineered drug particles for use in DPIs. Literature data have shown that different particle-engineering methods and storage conditions may cause physical instability of dry powders for inhalation and can significantly change the aerosol performance. A systematic examination of physical instability mechanisms in DPI formulations is necessary during formulation development in order to select the optimum formulation with satisfactory stability. In addition, the use of appropriate characterization tools is critical to detect and understand physical instability during the development of DPI formulations.
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Affiliation(s)
- Nivedita Shetty
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - David Cipolla
- Insmed Incorporated, Bridgewater, NJ 08807-3365, USA
| | - Heejun Park
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Qi Tony Zhou
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
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22
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Preparation of Theophylline-Benzoic Acid Cocrystal and On-Line Monitoring of Cocrystallization Process in Solution by Raman Spectroscopy. CRYSTALS 2019. [DOI: 10.3390/cryst9070329] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Pure theophylline-benzoic acid cocrystal was prepared via slurry and cooling crystallization in solution to overcome the disadvantages of existing preparation methods. The target cocrystal was characterized by powder X-ray diffraction (PXRD), thermalgravimetric analysis (TGA), differential scanning calorimetry (DSC) and Raman spectroscopy. The slurry and cooling cocrystallization process in solution was monitored via on-line Raman spectroscopy. The results obtained from on-line Raman monitoring can exhibit the transformation process from raw materials (theophylline and benzoic acid) to cocrystal and show the cocrystal formation rate. Comparing each transformation process under different conditions in slurry crystallization, we found that suspension density of raw materials and temperature both have an impact on the theophylline-benzoic acid cocrystal formation rate. It could be concluded that the cocrystal formation rate increased with the increase of suspension density of raw materials. Further under the same suspension density, higher temperature will accelerate theophylline-benzoic acid cocrystal formation. Meanwhile, various data from the cocrystallization process in cooling crystallization, including nucleation time, nucleation temperature and suitable cooling ending point can be gained from results of on-line Raman monitoring.
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23
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Ganesh M, Ubaidulla U, Rathnam G, Jang HT. Chitosan-telmisartan polymeric cocrystals for improving oral absorption: In vitro and in vivo evaluation. Int J Biol Macromol 2019; 131:879-885. [DOI: 10.1016/j.ijbiomac.2019.03.141] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/12/2019] [Accepted: 03/21/2019] [Indexed: 11/30/2022]
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Patel RD, Raval MK, Bagathariya AA, Sheth NR. Functionality improvement of Nimesulide by eutectic formation with nicotinamide: Exploration using temperature-composition phase diagram. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.02.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Melting Diagrams of Adefovir Dipivoxil and Dicarboxylic Acids: An Approach to Assess Cocrystal Compositions. CRYSTALS 2019. [DOI: 10.3390/cryst9020070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Pharmaceutical cocrystallization is a useful method to regulate the physical properties of active pharmaceutical ingredients (APIs). Since the cocrystals may form in various API/coformer ratios, identification of the cocrystal composition is the critical first step of any further analysis. However, the composition identification is not always unambiguous if cocrystallization is performed in solid state with unsuccessful solution crystallization. Single melting point and some new X-ray diffraction peaks are necessary but not sufficient conditions. In the present study, the use of melting diagrams coupled with the X-ray diffraction data was tested to identify cocrystal compositions. Adefovir dipivoxil (AD) was used as a model API, and succinic acid (SUC), suberic acid (SUB), and glutaric acid (GLU) were coformers. Compositions of AD/SUC and AD/SUB had been previously identified as 2:1 and 1:1, but that of AD/GLU was not unambiguously identified because of the difficulty of solution crystallization. Melting diagrams were constructed with differential scanning calorimetry, and their interpretation was assisted by powder X-ray diffraction. The cocrystal formation was exhibited as new compositions with congruent melting in the phase diagrams. This method correctly indicated the previously known cocrystal compositions of AD/SUC and AD/SUB, and it successfully identified the AD/GLU cocrystal composition as 1:1. The current approach is a simple and useful method to assess the cocrystal compositions when the crystallization is only possible in solid state.
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Ahuja D, Svärd M, Rasmuson ÅC. Investigation of solid–liquid phase diagrams of the sulfamethazine–salicylic acid co-crystal. CrystEngComm 2019. [DOI: 10.1039/c9ce00124g] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ternary phase diagrams for sulfamethazine–salicylic acid co-crystal have been constructed in three solvent systems.
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Affiliation(s)
- Dipali Ahuja
- Synthesis and Solid State Pharmaceutical Centre
- Bernal Institute
- Department of Chemical Sciences
- University of Limerick
- Ireland
| | - Michael Svärd
- Synthesis and Solid State Pharmaceutical Centre
- Bernal Institute
- Department of Chemical Sciences
- University of Limerick
- Ireland
| | - Åke C. Rasmuson
- Synthesis and Solid State Pharmaceutical Centre
- Bernal Institute
- Department of Chemical Sciences
- University of Limerick
- Ireland
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27
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Gajda M, Nartowski KP, Pluta J, Karolewicz B. The role of the polymer matrix in solvent-free hot melt extrusion continuous process for mechanochemical synthesis of pharmaceutical cocrystal. Eur J Pharm Biopharm 2018; 131:48-59. [DOI: 10.1016/j.ejpb.2018.07.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/24/2018] [Accepted: 07/02/2018] [Indexed: 12/30/2022]
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Affiliation(s)
- Ann Newman
- Seventh Street Development Group; PO Box 251 Kure Beach NC 28449 USA
| | - Cen Chen
- Crystal Pharmatech; B4-101, Biobay, 218 Xinghu Street, Suzhou Industrial Park Suzhou 215123 China
| | - Carlos Sanrame
- Crystal Pharmatech; Suite 500-B, 3000 Eastpark Blvd Cranbury NJ 08512 USA
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Rodrigues M, Baptista B, Lopes JA, Sarraguça MC. Pharmaceutical cocrystallization techniques. Advances and challenges. Int J Pharm 2018; 547:404-420. [PMID: 29890258 DOI: 10.1016/j.ijpharm.2018.06.024] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/06/2018] [Accepted: 06/07/2018] [Indexed: 12/11/2022]
Abstract
Cocrystals are homogenous (single-phase) crystalline structures composed by two or more components in a definite stoichiometric ratio bonded together by noncovalent bonds. Pharmaceutical industry has been showing interest in cocrystals due to their ability to improve active pharmaceutical ingredients (API's) properties, such as solubility, dissolution, bioavailability, stability and processability. The necessity for high-throughput screening methods and methods capable of producing cocrystals in an industrial scale still hinders the use of cocrystals by the pharmaceutical industry. The aim of this review is to present an extensive overview of the cocrystallization methods, focusing in the specificities of each technique, its advantages and disadvantages. The review is divided into solvent-based and solvent-free methods. The most appropriate methods to the different stages of cocrystals manufacture, from the screening phase to industrial production are identified. The use of continuous and scalable methods in cocrystal production as well as the implementation of quality-by-design and process analytical technology concepts are also addressed.
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Affiliation(s)
- Marisa Rodrigues
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Bárbara Baptista
- Research Institute for Medicines (iMed.Lisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - João Almeida Lopes
- Research Institute for Medicines (iMed.Lisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Mafalda Cruz Sarraguça
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
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Sverdlov Arzi R, Sosnik A. Electrohydrodynamic atomization and spray-drying for the production of pure drug nanocrystals and co-crystals. Adv Drug Deliv Rev 2018; 131:79-100. [PMID: 30031740 DOI: 10.1016/j.addr.2018.07.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/12/2018] [Accepted: 07/17/2018] [Indexed: 12/21/2022]
Abstract
In recent years, nanotechnology has offered attractive opportunities to overcome the (bio)pharmaceutical drawbacks of most drugs such as low aqueous solubility and bioavailability. Among the numerous methodologies that have been applied to improve drug performance, a special emphasis has been made on those that increase the dissolution rate and the saturation solubility by the reduction of the particle size of pure drugs to the nanoscale and the associated increase of the specific surface area. Different top-down and bottom-up methods have been implemented, each one with its own pros and cons. Over the last years, the latter that rely on the dissolution of the drug in a proper solvent and its crystallization or co-crystallization by precipitation in an anti-solvent or, conversely, by solvent evaporation have gained remarkable impulse owing to the ability to adjust features such as size, size distribution, morphology and to control the amorphous/crystalline nature of the product. In this framework, electrohydrodynamic atomization (also called electrospraying) and spray-drying excel due to their simplicity and potential scalability. Moreover, they do not necessarily require suspension stabilizers and dry products are often produced during the formation of the nanoparticles what ensures physicochemical stability for longer times than liquid products. This review overviews the potential of these two technologies for the production of pure drug nanocrystals and co-crystals and discusses the recent technological advances and challenges for their implementation in pharmaceutical research and development.
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31
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Serrano DR, Walsh D, O'Connell P, Mugheirbi NA, Worku ZA, Bolas-Fernandez F, Galiana C, Dea-Ayuela MA, Healy AM. Optimising the in vitro and in vivo performance of oral cocrystal formulations via spray coating. Eur J Pharm Biopharm 2018; 124:13-27. [DOI: 10.1016/j.ejpb.2017.11.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 11/26/2017] [Accepted: 11/27/2017] [Indexed: 11/28/2022]
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Emami S, Siahi-Shadbad M, Barzegar-Jalali M, Adibkia K. Feasibility of electrospray deposition for rapid screening of the cocrystal formation and single step, continuous production of pharmaceutical nanococrystals. Drug Dev Ind Pharm 2018; 44:1034-1047. [PMID: 29347850 DOI: 10.1080/03639045.2018.1430821] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVES This study employed electrospray deposition (ESD) for simultaneous synthesis and particle engineering of cocrystals. SIGNIFICANCE Exploring new methods for the efficient production of cocrystals with desired particle properties is an essential demand. METHODS The possibility of cocrystal formation by ESD was examined for indomethacin-saccharin, indomethacin-nicotinamide, naproxen-nicotinamide, and naproxen-iso-nicotinamide cocrystals. Solutions of the drug and coformer at stoichiometric ratios were sprayed to a high electric field which caused rapid evaporation of the solvent and the formation of fine particles. The phase purity, size, and morphology of products were compared with reference cocrystals. Experiments were performed to evaluate the effects of stoichiometric ratio, concentration and solvent type on the cocrystal formation. Physical stability and dissolution properties of the electrosprayed cocrystals were also compared with reference cocrystals. RESULTS ESD was found to be an efficient and rapid method to produce cocrystals for all studied systems other than indomethacin-nicotinamide. Pure cocrystals only formed at a specific drug:coformer ratio. The solvent type has a weak effect on the cocrystal formation and morphology. Electrosprayed cocrystals exhibited nano to micrometer sizes with distinct morphologies with comparable physical stability with reference cocrystals. Nanococrystals of indomethacin-saccharin with a mean size of 219 nm displayed a threefold higher dissolution rate than solvent evaporated cocrystal. CONCLUSION ESD successfully was utilized to produce pure cocrystals of poorly soluble drugs with different morphologies and sizes ranging from nano to micrometer sizes in one step. This study highlighted the usefulness of ESD for simultaneous preparation and particle engineering of pharmaceutical cocrystals.
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Affiliation(s)
- Shahram Emami
- a Drug Applied Research Center and Faculty of Pharmacy , Tabriz University of Medical Sciences , Tabriz , Iran.,b Student Research Committee , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Mohammadreza Siahi-Shadbad
- c Department of Pharmaceutical and Food Control, Faculty of Pharmacy , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Mohammad Barzegar-Jalali
- d Biotechnology Research Center, and Faculty of Pharmacy , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Khosro Adibkia
- e Research Center for Pharmaceutical Nanotechnology and Faculty of Pharmacy , Tabriz University of medical sciences , Tabriz , Iran
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33
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Advanced methodologies for cocrystal synthesis. Adv Drug Deliv Rev 2017; 117:178-195. [PMID: 28712924 DOI: 10.1016/j.addr.2017.07.008] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 07/04/2017] [Accepted: 07/07/2017] [Indexed: 11/21/2022]
Abstract
Pharmaceutical cocrystals are multicomponent systems composed of two or more molecules and held together by H-bonding. Currently, cocrystals provide exciting opportunities in the pharmaceutical industry for the development and manufacturing of new medicines by improving poor physical properties of Active Pharmaceutical Ingredients (APIs) such as processability, solubility, stability and bioavailability. According to the recent reclassification, cocrystals are considered as drug polymorph rather a new API which has a significant impact on drug development, regulatory submissions and intellectual property protection. This review summarizes recent trends and advances in synthesis, manufacturing and scale - up of cocrystals. The operational principles of several cocrystals manufacturing technologies are discussed including their advantages and disadvantages in terms of crystal quality, purity stability, throughput and limitations in large scale production.
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Malamatari M, Somavarapu S, Kachrimanis K, Bloxham M, Taylor KMG, Buckton G. Preparation of theophylline inhalable microcomposite particles by wet milling and spray drying: The influence of mannitol as a co-milling agent. Int J Pharm 2017; 514:200-211. [PMID: 27863663 DOI: 10.1016/j.ijpharm.2016.06.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/09/2016] [Accepted: 06/10/2016] [Indexed: 11/16/2022]
Abstract
Inhalable theophylline particles with various amounts of mannitol were prepared by combining wet milling in isopropanol followed by spray drying. The effect of mannitol as a co-milling agent on the micromeritic properties, solid state and aerosol performance of the engineered particles was investigated. Crystal morphology modelling and geometric lattice matching calculations were employed to gain insight into the intermolecular interactions that may influence the mechanical properties of theophylline and mannitol. The addition of mannitol facilitated the size reduction of the needle-like crystals of theophylline and also their assembly in microcomposites by forming a porous structure of mannitol nanocrystals wherein theophylline particles are embedded. The microcomposites were found to be in the same crystalline state as the starting material(s) ensuring their long-term physical stability upon storage. Incorporation of mannitol resulted in microcomposite particles with smaller size, more spherical shape and increased porosity. The aerosol performance of the microcomposites was markedly enhanced compared to the spray-dried suspension of theophylline wet milled without mannitol. Overall, wet co-milling with mannitol in an organic solvent followed by spray drying may be used as a formulation approach for producing respirable particles of water-soluble drugs or drugs that are prone to crystal transformation in an aqueous environment (i.e. formation of hydrates).
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Affiliation(s)
- Maria Malamatari
- UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | | | - Kyriakos Kachrimanis
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Mark Bloxham
- GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK
| | - Kevin M G Taylor
- UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Graham Buckton
- UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK.
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Fischer F, Fendel N, Greiser S, Rademann K, Emmerling F. Impact Is Important—Systematic Investigation of the Influence of Milling Balls in Mechanochemical Reactions. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.6b00435] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Franziska Fischer
- BAM Federal Institute for Materials Research and Testing, R.-Willstätter-Str. 11, 12489 Berlin, Germany
- Humboldt-Universität zu Berlin, B.-Taylor-Str.
2, 12489 Berlin, Germany
| | - Nicole Fendel
- BAM Federal Institute for Materials Research and Testing, R.-Willstätter-Str. 11, 12489 Berlin, Germany
- Humboldt-Universität zu Berlin, B.-Taylor-Str.
2, 12489 Berlin, Germany
| | - Sebastian Greiser
- BAM Federal Institute for Materials Research and Testing, R.-Willstätter-Str. 11, 12489 Berlin, Germany
- Humboldt-Universität zu Berlin, B.-Taylor-Str.
2, 12489 Berlin, Germany
| | - Klaus Rademann
- BAM Federal Institute for Materials Research and Testing, R.-Willstätter-Str. 11, 12489 Berlin, Germany
- Humboldt-Universität zu Berlin, B.-Taylor-Str.
2, 12489 Berlin, Germany
| | - Franziska Emmerling
- BAM Federal Institute for Materials Research and Testing, R.-Willstätter-Str. 11, 12489 Berlin, Germany
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36
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Karashima M, Sano N, Yamamoto S, Arai Y, Yamamoto K, Amano N, Ikeda Y. Enhanced pulmonary absorption of poorly soluble itraconazole by micronized cocrystal dry powder formulations. Eur J Pharm Biopharm 2017; 115:65-72. [PMID: 28223260 DOI: 10.1016/j.ejpb.2017.02.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 01/27/2017] [Accepted: 02/16/2017] [Indexed: 11/30/2022]
Abstract
Micronized cocrystal powders and amorphous spray-dried formulations were prepared and evaluated in vivo and in vitro as pulmonary absorption enhancement formulations of poorly soluble itraconazole (ITZ). ITZ cocrystals with succinic acid (SA) or l-tartaric acid (TA) with a particle size diameter of <2μm were successfully micronized using the jet-milling system. The cocrystal crystalline morphologies observed using scanning electron microscopy (SEM) suggested particle shapes that differed from those of the crystalline or spray-dried amorphous ITZ. The micronized ITZ cocrystal powders showed better intrinsic dissolution rate (IDR) and pulmonary absorption profile in rats than that of the amorphous spray-dried formulation and crystalline ITZ with comparable particle sizes. Specifically, in rat pharmacokinetic studies following pulmonary administration, micronized ITZ-SA and ITZ-TA cocrystals showed area under the curve from 0 to 8h (AUC0-8h) values approximately 24- and 19-fold higher than those of the crystalline ITZ and 2.0- and 1.6-fold higher than the spray-dried ITZ amorphous values, respectively. The amorphous formulation appeared physically instable during the studies due to rapid crystallization of ITZ, which was its disadvantage compared to the crystalline formulations. Therefore, this study demonstrated that micronized cocrystals are promising formulations for enhancing the pulmonary absorption of poorly soluble compounds.
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Affiliation(s)
- Masatoshi Karashima
- Takeda Pharmaceutical Company Ltd., Analytical Development, Pharmaceutical Sciences, Kanagawa 251-8555, Japan.
| | - Noriyasu Sano
- Takeda Pharmaceutical Company Ltd., Drug Metabolism and Pharmacokinetics Research Laboratories, Pharmaceutical Research Division, Kanagawa 251-8555, Japan
| | - Syunsuke Yamamoto
- Takeda Pharmaceutical Company Ltd., Drug Metabolism and Pharmacokinetics Research Laboratories, Pharmaceutical Research Division, Kanagawa 251-8555, Japan
| | - Yuta Arai
- Takeda Pharmaceutical Company Ltd., Analytical Development, Pharmaceutical Sciences, Kanagawa 251-8555, Japan
| | - Katsuhiko Yamamoto
- Takeda Pharmaceutical Company Ltd., Analytical Development, Pharmaceutical Sciences, Kanagawa 251-8555, Japan
| | - Nobuyuki Amano
- Takeda Pharmaceutical Company Ltd., Drug Metabolism and Pharmacokinetics Research Laboratories, Pharmaceutical Research Division, Kanagawa 251-8555, Japan
| | - Yukihiro Ikeda
- Takeda Pharmaceutical Company Ltd., Analytical Development, Pharmaceutical Sciences, Kanagawa 251-8555, Japan
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37
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Influence of particle properties on powder bulk behaviour and processability. Int J Pharm 2017; 518:138-154. [DOI: 10.1016/j.ijpharm.2016.12.045] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 11/18/2022]
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38
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Kulla H, Fischer F, Benemann S, Rademann K, Emmerling F. The effect of the ball to reactant ratio on mechanochemical reaction times studied by in situ PXRD. CrystEngComm 2017. [DOI: 10.1039/c7ce00502d] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of the ball to reactant ratio on reaction times for a cocrystal formation was studied by in situ PXRD.
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Affiliation(s)
- Hannes Kulla
- BAM Federal Institute for Materials Research and Testing
- 12489 Berlin
- Germany
- Department of Chemistry
- Humboldt-Universität zu Berlin
| | - Franziska Fischer
- BAM Federal Institute for Materials Research and Testing
- 12489 Berlin
- Germany
| | - Sigrid Benemann
- BAM Federal Institute for Materials Research and Testing
- 12489 Berlin
- Germany
| | - Klaus Rademann
- Department of Chemistry
- Humboldt-Universität zu Berlin
- 12489 Berlin
- Germany
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39
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Gadade DD, Pekamwar SS. Pharmaceutical Cocrystals: Regulatory and Strategic Aspects, Design and Development. Adv Pharm Bull 2016; 6:479-494. [PMID: 28101455 DOI: 10.15171/apb.2016.062] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 10/21/2016] [Accepted: 10/24/2016] [Indexed: 12/30/2022] Open
Abstract
Cocrystal is a concept of the supramolecular chemistry which is gaining the extensive interest of researchers from pharmaceutical and chemical sciences and of drug regulatory agencies. The prominent reason of which is its ability to modify physicochemical properties of active pharmaceutical ingredients. During the development of the pharmaceutical product, formulators have to optimize the physicochemical properties of active pharmaceutical ingredients. Pharmaceutical cocrystals can be employed to improve vital physicochemical characteristics of a drug, including solubility, dissolution, bioavailability and stability of pharmaceutical compounds while maintaining its therapeutic activity. It is advantageous being a green synthesis approach for production of pharmaceutical compounds. The formation polymorphic forms, solvates, hydrates and salts of cocrystals during the synthesis reported in the literature which can be a potential issue in the development of pharmaceutical cocrystals. The approaches like hydrogen bonding rules, solubility parameters, screening through the CSD database or thermodynamic characteristics can be utilized for the rational design of cocrystals and selection of coformers for synthesis multi-component cocrystals. Considering the significance of pharmaceutical cocrystals pharmaceutical regulatory authorities in the United States and Europe issued guidance documents which may be helpful for pharmaceutical product registration in these regions. In this article, we deal with the design, synthesis, strategic aspects and characteristics of cocrystals along perspectives on its regulatory and intellectual property considerations.
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Affiliation(s)
- Dipak Dilip Gadade
- School of Pharmacy, S.R.T.M. University, Vishnupuri, Nanded - 431606, India
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40
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Jones W. An Appreciation of Organic Solid-State Chemistry and Challenges in the Field of “Molecules, Materials, Medicines”. Isr J Chem 2016. [DOI: 10.1002/ijch.201600090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- William Jones
- Department of Chemistry; Lensfield Road Cambridge CB2 1EW UK
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41
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Mehta P. Dry Powder Inhalers: A Focus on Advancements in Novel Drug Delivery Systems. JOURNAL OF DRUG DELIVERY 2016; 2016:8290963. [PMID: 27867663 PMCID: PMC5102732 DOI: 10.1155/2016/8290963] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 09/25/2016] [Accepted: 10/09/2016] [Indexed: 12/20/2022]
Abstract
Administration of drug molecules by inhalation route for treatment of respiratory diseases has the ability to deliver drugs, hormones, nucleic acids, steroids, proteins, and peptides, particularly to the site of action, improving the efficacy of the treatment and consequently lessening adverse effects of the treatment. Numerous inhalation delivery systems have been developed and studied to treat respiratory diseases such as asthma, COPD, and other pulmonary infections. The progress of disciplines such as biomaterials science, nanotechnology, particle engineering, molecular biology, and cell biology permits further improvement of the treatment capability. The present review analyzes modern therapeutic approaches of inhaled drugs with special emphasis on novel drug delivery system for treatment of various respiratory diseases.
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Affiliation(s)
- Piyush Mehta
- Dry Powder Inhaler Lab, Respiratory Formulations, Cipla R & D, LBS Road, Vikhroli (W), Mumbai, Maharashtra 400079, India
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42
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de Boer AH, Hagedoorn P, Hoppentocht M, Buttini F, Grasmeijer F, Frijlink HW. Dry powder inhalation: past, present and future. Expert Opin Drug Deliv 2016; 14:499-512. [PMID: 27534768 DOI: 10.1080/17425247.2016.1224846] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Early dry powder inhalers (DPIs) were designed for low drug doses in asthma and COPD therapy. Nearly all concepts contained carrier-based formulations and lacked efficient dispersion principles. Therefore, particle engineering and powder processing are increasingly applied to achieve acceptable lung deposition with these poorly designed inhalers. Areas covered: The consequences of the choices made for early DPI development with respect of efficacy, production costs and safety and the tremendous amount of energy put into understanding and controlling the dispersion performance of adhesive mixtures are discussed. Also newly developed particle manufacturing and powder formulation processes are presented as well as the challenges, objectives, and new tools available for future DPI design. Expert opinion: Improved inhaler design is desired to make DPIs for future applications cost-effective and safe. With an increasing interest in high dose drug delivery, vaccination and systemic delivery via the lungs, innovative formulation technologies alone may not be sufficient. Safety is served by increasing patient adherence to the therapy, minimizing the use of unnecessary excipients and designing simple and self-intuitive inhalers, which give good feedback to the patient about the inhalation maneuver. For some applications, like vaccination and delivery of hygroscopic formulations, disposable inhalers may be preferred.
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Affiliation(s)
- A H de Boer
- a Department of Pharmaceutical Technology and Biopharmacy , University of Groningen , Groningen , The Netherlands
| | - P Hagedoorn
- a Department of Pharmaceutical Technology and Biopharmacy , University of Groningen , Groningen , The Netherlands
| | - M Hoppentocht
- a Department of Pharmaceutical Technology and Biopharmacy , University of Groningen , Groningen , The Netherlands
| | - F Buttini
- b Department of Pharmacy , University of Parma , Parma , Italy
| | - F Grasmeijer
- a Department of Pharmaceutical Technology and Biopharmacy , University of Groningen , Groningen , The Netherlands
| | - H W Frijlink
- a Department of Pharmaceutical Technology and Biopharmacy , University of Groningen , Groningen , The Netherlands
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43
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Li S, Yu T, Tian Y, McCoy CP, Jones DS, Andrews GP. Mechanochemical Synthesis of Pharmaceutical Cocrystal Suspensions via Hot Melt Extrusion: Feasibility Studies and Physicochemical Characterization. Mol Pharm 2016; 13:3054-68. [DOI: 10.1021/acs.molpharmaceut.6b00134] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shu Li
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - Tao Yu
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - Yiwei Tian
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - Colin P. McCoy
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - David S. Jones
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - Gavin P. Andrews
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
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44
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Jones MD, Buckton G. Comparison of the cohesion-adhesion balance approach to colloidal probe atomic force microscopy and the measurement of Hansen partial solubility parameters by inverse gas chromatography for the prediction of dry powder inhalation performance. Int J Pharm 2016; 509:419-430. [PMID: 27265314 DOI: 10.1016/j.ijpharm.2016.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/20/2016] [Accepted: 06/01/2016] [Indexed: 10/21/2022]
Abstract
The abilities of the cohesive-adhesive balance approach to atomic force microscopy (AFM) and the measurement of Hansen partial solubility parameters by inverse gas chromatography (IGC) to predict the performance of carrier-based dry powder inhaler (DPI) formulations were compared. Five model drugs (beclometasone dipropionate, budesonide, salbutamol sulphate, terbutaline sulphate and triamcinolone acetonide) and three model carriers (erythritol, α-lactose monohydrate and d-mannitol) were chosen, giving fifteen drug-carrier combinations. Comparison of the AFM and IGC interparticulate adhesion data suggested that they did not produce equivalent results. Comparison of the AFM data with the in vitro fine particle delivery of appropriate DPI formulations normalised to account for particle size differences revealed a previously observed pattern for the AFM measurements, with a slightly cohesive AFM CAB ratio being associated with the highest fine particle fraction. However, no consistent relationship between formulation performance and the IGC data was observed. The results as a whole highlight the complexity of the many interacting variables that can affect the behaviour of DPIs and suggest that the prediction of their performance from a single measurement is unlikely to be successful in every case.
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Affiliation(s)
- Matthew D Jones
- Department of Pharmaceutics, UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, United Kingdom; Department of Pharmacy and Pharmacology, University of Bath, Bath, BA2 7AY, United Kingdom.
| | - Graham Buckton
- Department of Pharmaceutics, UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, United Kingdom.
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45
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Duarte Í, Andrade R, Pinto JF, Temtem M. Green production of cocrystals using a new solvent-free approach by spray congealing. Int J Pharm 2016; 506:68-78. [DOI: 10.1016/j.ijpharm.2016.04.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 03/31/2016] [Accepted: 04/04/2016] [Indexed: 10/22/2022]
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Cysewski P, Przybyłek M, Ziółkowska D, Mroczyńska K. Exploring the cocrystallization potential of urea and benzamide. J Mol Model 2016; 22:103. [PMID: 27052722 PMCID: PMC4823316 DOI: 10.1007/s00894-016-2964-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 03/14/2016] [Indexed: 11/09/2022]
Abstract
The cocrystallization landscape of benzamide and urea interacting with aliphatic and aromatic carboxylic acids was studied both experimentally and theoretically. Ten new cocrystals of benzamide were synthesized using an oriented samples approach via a fast dropped evaporation technique. Information about types of known bi-component cocrystals augmented with knowledge of simple binary eutectic mixtures was used for the analysis of virtual screening efficiency among 514 potential pairs involving aromatic carboxylic acids interacting with urea or benzamide. Quantification of intermolecular interaction was achieved by estimating the excess thermodynamic functions of binary liquid mixtures under supercooled conditions within a COSMO-RS framework. The smoothed histograms suggest that slightly more potential pairs of benzamide are characterized in the attractive region compared to urea. Finally, it is emphasized that prediction of cocrystals of urea is fairly direct, while it remains ambiguous for benzamide paired with carboxylic acids. The two known simple eutectics of urea are found within the first two quartiles defined by excess thermodynamic functions, and all known cocrystals are outside of this range belonging to the third or fourth quartile. On the contrary, such a simple separation of positive and negative cases of benzamide miscibility in the solid state is not observed. The difference in properties between urea and benzamide R2,2(8) heterosynthons is also documented by alterations of substituent effects. Intermolecular interactions of urea with para substituted benzoic acid analogues are stronger compared to those of benzamide. Also, the amount of charge transfer from amide to aromatic carboxylic acid and vice versa is more pronounced for urea. However, in both cases, the greater the electron withdrawing character of the substituent, the higher the binding energy, and the stronger the supermolecule polarization via the charge transfer mechanism.
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Affiliation(s)
- Piotr Cysewski
- Department of Physical Chemistry, Faculty of Pharmacy, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950, Bydgoszcz, Poland.
| | - Maciej Przybyłek
- Department of Physical Chemistry, Faculty of Pharmacy, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950, Bydgoszcz, Poland
| | - Dorota Ziółkowska
- Research Laboratory, Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences in Bydgoszcz, Seminaryjna 3, 85-326, Bydgoszcz, Poland
| | - Karina Mroczyńska
- Research Laboratory, Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences in Bydgoszcz, Seminaryjna 3, 85-326, Bydgoszcz, Poland
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47
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Williams DR. Particle engineering in pharmaceutical solids processing: surface energy considerations. Curr Pharm Des 2016; 21:2677-94. [PMID: 25876912 PMCID: PMC5421142 DOI: 10.2174/1381612821666150416100319] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 04/07/2015] [Indexed: 11/22/2022]
Abstract
During the past 10 years particle engineering in the pharmaceutical industry has become a topic of increasing importance. Engineers and pharmacists need to understand and control a range of key unit manufacturing operations such as milling, granulation, crystallisation, powder mixing and dry powder inhaled drugs which can be very challenging. It has now become very clear that in many of these particle processing operations, the surface energy of the starting, intermediate or final products is a key factor in understanding the processing operation and or the final product performance. This review will consider the surface energy and surface energy heterogeneity of crystalline solids, methods for the measurement of surface energy, effects of milling on powder surface energy, adhesion and cohesion on powder mixtures, crystal habits and surface energy, surface energy and powder granulation processes, performance of DPI systems and finally crystallisation conditions and surface energy. This review will conclude that the importance of surface energy as a significant factor in understanding the performance of many particulate pharmaceutical products and processes has now been clearly established. It is still nevertheless, work in progress both in terms of development of methods and establishing the limits for when surface energy is the key variable of relevance.
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Affiliation(s)
- Daryl R Williams
- Department of Chemical Engineering, Imperial College London, Prince Consort Road, Kensington London SW7 2AZ, United Kingdom.
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48
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Przybyłek M, Ziółkowska D, Mroczyńska K, Cysewski P. Propensity of salicylamide and ethenzamide cocrystallization with aromatic carboxylic acids. Eur J Pharm Sci 2016; 85:132-40. [DOI: 10.1016/j.ejps.2016.02.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/13/2016] [Accepted: 02/15/2016] [Indexed: 11/26/2022]
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49
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Fischer F, Schmidt MU, Greiser S, Emmerling F. The challenging case of the theophylline–benzamide cocrystal. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2016; 72:217-24. [DOI: 10.1107/s2053229616002643] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 02/15/2016] [Indexed: 11/10/2022]
Abstract
Theophylline has been used as an active pharmaceutical ingredient (API) in the treatment of pulmonary diseases, but due to its low water solubility reveals very poor bioavailability. Based on its different hydrogen-bond donor and acceptor groups, theophylline is an ideal candidate for the formation of cocrystals. The crystal structure of the 1:1 benzamide cocrystal of theophylline, C7H8N4O2·C7H7NO, was determined from synchrotron X-ray powder diffraction data. The compound crystallizes in the tetragonal space groupP41with four independent molecules in the asymmetric unit. The molecules form a hunter's fence packing. The crystal structure was confirmed by dispersion-corrected DFT calculations. The possibility of salt formation was excluded by the results of Raman and1H solid-state NMR spectroscopic analyses.
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50
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Duggirala NK, Perry ML, Almarsson Ö, Zaworotko MJ. Pharmaceutical cocrystals: along the path to improved medicines. Chem Commun (Camb) 2016; 52:640-55. [DOI: 10.1039/c5cc08216a] [Citation(s) in RCA: 626] [Impact Index Per Article: 78.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Cocrystals, a long known but understudied class of crystalline solids, have attracted interest from crystal engineers and pharmaceutical scientists in the past decade and are now an integral part of the preformulation stage of drug development.
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Affiliation(s)
- Naga K. Duggirala
- Department of Chemical & Environmental Sciences and Bernal Institute
- University of Limerick
- Limerick
- Republic of Ireland
| | - Miranda L. Perry
- Department of Chemical & Environmental Sciences and Bernal Institute
- University of Limerick
- Limerick
- Republic of Ireland
| | | | - Michael J. Zaworotko
- Department of Chemical & Environmental Sciences and Bernal Institute
- University of Limerick
- Limerick
- Republic of Ireland
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