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Aitipamula S, Bolla G. Optimizing Drug Development: Harnessing the Sustainability of Pharmaceutical Cocrystals. Mol Pharm 2024; 21:3121-3143. [PMID: 38814314 DOI: 10.1021/acs.molpharmaceut.4c00289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Environmental impacts of the industrial revolution necessitate adoption of sustainable practices in all areas of development. The pharmaceutical industry faces increasing pressure to minimize its ecological footprint due to its significant contribution to environmental pollution. Over the past two decades, pharmaceutical cocrystals have received immense popularity due to their ability to optimize the critical attributes of active pharmaceutical ingredients and presented an avenue to bring improved drug products to the market. This review explores the potential of pharmaceutical cocrystals as an ecofriendly alternative to traditional solid forms, offering a sustainable approach to drug development. From reducing the number of required doses to improving the stability of actives, from eliminating synthetic operations to using pharmaceutically approved chemicals, from the use of continuous and solvent-free manufacturing methods to leveraging published data on the safety and toxicology, the cocrystallization approach contributes to sustainability of drug development. The latest trends suggest a promising role of pharmaceutical cocrystals in bringing novel and improved medicines to the market, which has been further fuelled by the recent guidance from the major regulatory agencies.
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Affiliation(s)
- Srinivasulu Aitipamula
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore
| | - Geetha Bolla
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
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2
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Rajbongshi T, Sarmah KK, Das S, Deka P, Saha A, Saha BK, Puschmann H, Reddy CM, Thakuria R. Non-stoichiometric carbamazepine cocrystal hydrates of 3,4-/3,5-dihydroxybenzoic acids: coformer-water exchange. Chem Commun (Camb) 2023; 59:3902-3905. [PMID: 36919569 DOI: 10.1039/d2cc06860e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
The cocrystallisation of carbamazepine (CBZ) with 3,4-/3,5-dihydroxybenzoic acids (34/35DHBA) with different stoichiometries formed molecular alloys, exchanging a water molecule, in their isostructural CBZ dihydrate form. Furthermore, we show a correlation between the mechanical properties of the CBZ-DHBA cocrystals with the amount of coformer present.
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Affiliation(s)
| | - Kashyap Kumar Sarmah
- Department of Chemistry, Behali Degree College, Borgang, Biswanath, 784167, Assam, India
| | - Susobhan Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741246, India.
| | - Poonam Deka
- Department of Chemistry, Gauhati University, Guwahati, 781014, India.
| | - Arijit Saha
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741246, India. .,Department of Chemistry, Pondicherry University, Pondicherry, India
| | - Binoy K Saha
- Department of Chemistry, Pondicherry University, Pondicherry, India
| | - Horst Puschmann
- OlexSys Ltd, Durham University, South Road, Durham, DH1 3LE, UK
| | - C Malla Reddy
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741246, India.
| | - Ranjit Thakuria
- Department of Chemistry, Gauhati University, Guwahati, 781014, India.
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Wang Z, Xie Y, Yu M, Yang S, Lu Y, Du G. Recent Advances on the Biological Study of Pharmaceutical Cocrystals. AAPS PharmSciTech 2022; 23:303. [DOI: 10.1208/s12249-022-02451-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/31/2022] [Indexed: 11/18/2022] Open
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4
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Vikram Lokhande S, Tyagi A, Butcher RJ, Karmakar G, Singh Chauhan R. Study of an interesting interplay between thiourea and 4,6-dimethylpyrimidine-2-thiol with palladium(II) phosphine substrate. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Abdel-Lateef MA, Alzahrani E, Pashameah RA, Almahri A, Abu-Hassan AA, El Hamd MA, Mohammad BS. A specific turn-on fluorescence probe for determination of nitazoxanide based on feasible oxidation reaction with hypochlorite: Applying cobalt ferrite nanoparticles for pre-concentration and extraction of its metabolite from real urine samples. J Pharm Biomed Anal 2022; 219:114941. [PMID: 35905532 DOI: 10.1016/j.jpba.2022.114941] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/10/2022] [Accepted: 07/11/2022] [Indexed: 01/14/2023]
Abstract
Nitazoxanide is an antimicrobial compound that was originally developed as an antiprotozoal drug. Recently nitazoxanide has been identified as broad-spectrum antiviral agent and redirected for the remediation of some respiratory tract viral infections. In this study, the spectrofluorimetric technique has been applied to determine Nitazoxanide (NTX) in tablets or its metabolite, tizoxanide (TZD), in human urine samples. The developed methodology is based on oxidizing NTX (non-fluorescence) into a highly fluorescent product by sodium hypochlorite. The fluorescence emission intensity was measured at 436.5 nm after fluorescence excitation at 362.5 nm. After optimizing all conditions, the analytical procedures and bio-analytical steps were evaluated and validated using ICH and FDA criteria, respectively. The method linearity, LOQ, and LOD values of NTX were 1.0-5.0 µg/mL, 0.434, and 0.143 µg/mL, respectively. The other novelty side of the presented work is the application of cobalt ferrite (CoFe2O4) nanoparticles (NPs) as a magnetic solid-phase for the pre-concentration and extraction process. The synthesized magnetic nanoparticles were characterized by scanning electron microscope and zeta sizer techniques. Finally, the utilized magnetic nanoparticles exhibited good recovery results for pre-concentration and extraction of NTX or its metabolite from spiked and real human urine samples, respectively.
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Affiliation(s)
- Mohamed A Abdel-Lateef
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt.
| | - Eman Alzahrani
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Rami Adel Pashameah
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah 24230, Saudi Arabia
| | - Albandary Almahri
- Department of Chemistry, College of Science and Humanities in Al-Khar j, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Ahmed A Abu-Hassan
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Mohamed A El Hamd
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Al Dwadmi 11961, Saudi Arabia; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, South Valley University 83523 Qena, Egypt.
| | - Bassam Shaaban Mohammad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shebin El-Kom, Menoufia, Egypt
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6
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Bolla G, Sarma B, Nangia AK. Crystal Engineering of Pharmaceutical Cocrystals in the Discovery and Development of Improved Drugs. Chem Rev 2022; 122:11514-11603. [PMID: 35642550 DOI: 10.1021/acs.chemrev.1c00987] [Citation(s) in RCA: 80] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The subject of crystal engineering started in the 1970s with the study of topochemical reactions in the solid state. A broad chemical definition of crystal engineering was published in 1989, and the supramolecular synthon concept was proposed in 1995 followed by heterosynthons and their potential applications for the design of pharmaceutical cocrystals in 2004. This review traces the development of supramolecular synthons as robust and recurring hydrogen bond patterns for the design and construction of supramolecular architectures, notably, pharmaceutical cocrystals beginning in the early 2000s to the present time. The ability of a cocrystal between an active pharmaceutical ingredient (API) and a pharmaceutically acceptable coformer to systematically tune the physicochemical properties of a drug (i.e., solubility, permeability, hydration, color, compaction, tableting, bioavailability) without changing its molecular structure is the hallmark of the pharmaceutical cocrystals platform, as a bridge between drug discovery and pharmaceutical development. With the design of cocrystals via heterosynthons and prototype case studies to improve drug solubility in place (2000-2015), the period between 2015 to the present time has witnessed the launch of several salt-cocrystal drugs with improved efficacy and high bioavailability. This review on the design, synthesis, and applications of pharmaceutical cocrystals to afford improved drug products and drug substances will interest researchers in crystal engineering, supramolecular chemistry, medicinal chemistry, process development, and pharmaceutical and materials sciences. The scale-up of drug cocrystals and salts using continuous manufacturing technologies provides high-value pharmaceuticals with economic and environmental benefits.
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Affiliation(s)
- Geetha Bolla
- Department of Chemistry, Ben-Gurion University of the Negev, Building 43, Room 201, Sderot Ben-Gurion 1, Be'er Sheva 8410501, Israel
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, Assam 784028, India
| | - Ashwini K Nangia
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, India
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Kumar A, Chauhan J, Dubey KD, Sen S, Munshi P. Tuning Potency of Bioactive Molecules via Polymorphic Modifications: A Case Study. Mol Pharm 2022; 19:1008-1018. [DOI: 10.1021/acs.molpharmaceut.1c01018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Anil Kumar
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
| | - Jyoti Chauhan
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
- Centre for Informatics, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
| | - Subhabrata Sen
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
| | - Parthapratim Munshi
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
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Sanphui P, Varsa S RB, Chernyshev VV. Polymorphs and Isostructural Cocrystals of Dexamethasone: Towards the improvement of aqueous solubility. CrystEngComm 2022. [DOI: 10.1039/d2ce00781a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dexamethasone (DEX) is a corticosteroid drug used to treat arthritis, asthma, and considered as a promising drug for the treatment of Covid-19. The major drawback of DEX is its poor...
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9
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Zheng L, Zhu B, Wu Z, Liang F, Hong M, Liu G, Li W, Ren G, Tang Y. SMINBR: An Integrated Network and Chemoinformatics Tool Specialized for Prediction of Two-Component Crystal Formation. J Chem Inf Model 2021; 61:4290-4302. [PMID: 34436889 DOI: 10.1021/acs.jcim.1c00601] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two-component crystals such as pharmaceutical cocrystals and salts have been proven as an effective strategy to improve physicochemical and biopharmaceutical properties of drugs. It is not easy to select proper molecular combinations to form two-component crystals. The network-based models have been successfully utilized to guide cocrystal design. Yet, the traditional social network-derived methods based on molecular-interaction topology information cannot directly predict interaction partners for new chemical entities (NCEs) that have not been observed to form two-component crystals. Herein, we proposed an effective tool, namely substructure-molecular-interaction network-based recommendation (SMINBR), to prioritize potential interaction partners for NCEs. This in silico tool incorporates network and chemoinformatics methods to bridge the gap between NCEs and known molecular-interaction network. The high performance of 10-fold cross validation and external validation shows the high accuracy and good generalization capability of the model. As a case study, top 10 recommended coformers for apatinib were all experimentally confirmed and a new apatinib cocrystal with paradioxybenzene was obtained. The predictive capability of the model attributes to its accordance with complementary patterns driving the formation of intermolecular interactions. SMINBR could automatically recommend new interaction partners for a target molecule, and would be an effective tool to guide cocrystal design. A free web server for SMINBR is available at http://lmmd.ecust.edu.cn/sminbr/.
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Affiliation(s)
- Lulu Zheng
- Laboratory of Molecular Modeling & Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Bin Zhu
- State Key Laboratory of Bioreactor Engineering; Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Laboratory of Pharmaceutical Crystal Engineering & Technology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Zengrui Wu
- Laboratory of Molecular Modeling & Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Fang Liang
- State Key Laboratory of Bioreactor Engineering; Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Laboratory of Pharmaceutical Crystal Engineering & Technology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Minghuang Hong
- State Key Laboratory of Bioreactor Engineering; Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Laboratory of Pharmaceutical Crystal Engineering & Technology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Guixia Liu
- Laboratory of Molecular Modeling & Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Weihua Li
- Laboratory of Molecular Modeling & Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Guobin Ren
- State Key Laboratory of Bioreactor Engineering; Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Laboratory of Pharmaceutical Crystal Engineering & Technology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Yun Tang
- Laboratory of Molecular Modeling & Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
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10
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Saha S, Desiraju GR. Reply to the 'Comment on "Trimorphs of 4-bromophenyl 4-bromobenzoate. Elastic, brittle, plastic"' by J. J. Whittaker, A. J. Brock, A. Grosjean, M. C. Pfrunder, J. C. McMurtrie and J. K. Clegg, Chem. Commun., 2021, 57, DOI: 10.1039/D0CC07668F. Chem Commun (Camb) 2021; 57:4976-4978. [PMID: 33870961 DOI: 10.1039/d1cc00159k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crystals that differ in their molecular constitution may yet share the same mechanical property, such as plastic deformation, because they are equivalent in a supramolecular sense.
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Affiliation(s)
- Subhankar Saha
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India. .,Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741 246, India
| | - Gautam R Desiraju
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India.
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Fatima K, Bukhari NI, Latif S, Afzal H, Hussain A, Shamim R, Abbas N. Amelioration of physicochemical, pharmaceutical, and pharmacokinetic properties of lornoxicam by cocrystallization with a novel coformer. Drug Dev Ind Pharm 2021; 47:498-508. [PMID: 33646919 DOI: 10.1080/03639045.2021.1892744] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The present study was aimed to prepare and characterize new cocrystals of lornoxicam (LORX), a BCS class II drug employing 1,3-dimethyl urea (DMU) as a coformer to improve physicochemical, pharmaceutical, and pharmacokinetic performance. METHODS A screening study was conducted by employing three techniques viz. neat grinding, liquid-assisted grinding (LAG), and solvent evaporation (SE) using different drug-coformer molar ratios (1:1, 1:2, and 1:3). Samples were characterized by DSC, PXRD, ATR-FTIR, SEM, intrinsic dissolution rate (IDR) studies, compressional studies, and pharmacokinetic studies. In vitro dissolution and stability studies (25 °C/60%RH and 40 °C/75%RH for three months) were carried out for cocrystal tablets. RESULTS LAG and SE were found successful in ratio 1:3 and IDR showed approximately 28- and 19-fold increase, respectively in 0.1 N HCl (pH 1.2) and buffer (pH 7.4) as compared to pure LORX. The cocrystal exhibited good tabletability and was ∼2.5 times that of LORX at 6000 Psi. Dissolution profiles of tablets of cocrystal increased (56% and 100% at pH 1.2 and 7.4, respectively in contrast to those of physical mixture (PhyMix) (∼35% and ∼10%) and pure LORX (∼17% and ∼7%) within 60 min. The Cmax and AUC0-∞ for the selected cocrystal were significantly increased (p < 0.05) which was 2.4 and 2.5 times, respectively, that of LORX in a single dose oral pharmacokinetic study executed in rabbits. Tablets of cocrystal were found stable at both conditions. CONCLUSION The study indicates that cocrystallization with DMU can concomitantly improve tabletability, dissolution rate, and in vivo performance of dissolution limited drug LORX.
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Affiliation(s)
- Kanwal Fatima
- Punjab University College of Pharmacy, University of the Punjab, Allama Iqbal Campus, Lahore, Pakistan
| | - Nadeem Irfan Bukhari
- Punjab University College of Pharmacy, University of the Punjab, Allama Iqbal Campus, Lahore, Pakistan
| | - Sumera Latif
- Faculty of Pharmaceutical and Allied Health Sciences, Institute of Pharmacy, Lahore College for Women University, Lahore, Pakistan
| | - Hafsa Afzal
- Punjab University College of Pharmacy, University of the Punjab, Allama Iqbal Campus, Lahore, Pakistan.,Faculty of Pharmaceutical and Allied Health Sciences, Institute of Pharmacy, Lahore College for Women University, Lahore, Pakistan
| | - Amjad Hussain
- Punjab University College of Pharmacy, University of the Punjab, Allama Iqbal Campus, Lahore, Pakistan
| | - Rahat Shamim
- Punjab University College of Pharmacy, University of the Punjab, Allama Iqbal Campus, Lahore, Pakistan
| | - Nasir Abbas
- Punjab University College of Pharmacy, University of the Punjab, Allama Iqbal Campus, Lahore, Pakistan
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13
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Zhang Z, Yu N, Xue C, Gao S, Deng Z, Li M, Liu C, Castellot J, Han S. Potential Anti-Tumor Drug: Co-Crystal 5-Fluorouracil-nicotinamide. ACS OMEGA 2020; 5:15777-15782. [PMID: 32656396 PMCID: PMC7345411 DOI: 10.1021/acsomega.9b03574] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 02/11/2020] [Indexed: 05/12/2023]
Abstract
5-Fluorouracil-nicotinamide (5-FU-NCM), a co-crystal with a 2D layer structure formed by hydrogen bonds, was synthesized by solvent evaporation and liquid phase-assisted grinding at room temperature. Compared to 5-FU alone, the results of solubility, oil-water partition coefficient, anti-tumor effect in vivo and vitro, acute toxicity, and pharmacokinetic parameters indicate that the co-crystal is a potential anti-tumor drug.
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Affiliation(s)
- Zhuyan Zhang
- Pharmaceutical
Experiment Teaching Center, College of Pharmacy, Harbin Medical University, Harbin 150081, China
- Key
Laboratory of Functional Inorganic Material Chemistry, Ministry of
Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Nan Yu
- Pharmaceutical
Experiment Teaching Center, College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Chang Xue
- Tufts
University Sackler School of Biomedical Sciences, Boston, Massachusetts 02111, United States
| | - Shan Gao
- Key
Laboratory of Functional Inorganic Material Chemistry, Ministry of
Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
- E-mail: (S.G.)
| | - Zhaopeng Deng
- Key
Laboratory of Functional Inorganic Material Chemistry, Ministry of
Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Min Li
- Pharmaceutical
Experiment Teaching Center, College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Cong Liu
- Department
of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - John Castellot
- Department
of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, Massachusetts 02111, United States
- E-mail: (J.C.)
| | - Siying Han
- Department
of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, Harbin 150081, China
- E-mail: (S.H.)
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Nanodelivery of nitazoxanide: impact on the metabolism of Taenia crassiceps cysticerci intracranially inoculated in mice. Ther Deliv 2020; 11:329-339. [PMID: 32486970 DOI: 10.4155/tde-2020-0017] [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] [Indexed: 12/13/2022] Open
Abstract
Aim: To formulate nanocapsules and nanoemulsions of nitazoxanide (NTZ) and evaluate the metabolic effect on Taenia crassiceps cysticerci inoculated intracranially into mice. Materials & methods: NTZ nanosystems were formulated through solvent diffusion methodology. These nanoformulations were administered perorally and their impact on glycolysis, the tricarboxylic acid cycle and fatty acid metabolism in T. crassiceps cysticerci was investigated. Results: Gluconeogenesis and protein catabolism were significantly increased by the nanoformulations when compared with the control group and the NTZ-treated group. All the other metabolic pathways were inhibited by the nanoformulation treatments. Conclusion: The remarkable metabolic modifications that occur in this in vivo model through the application of these developed nanosystems confirm their capability to deliver NTZ into targeted tissues.
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Li L, Yin XH, Diao KS. Improving the solubility and bioavailability of anti-hepatitis B drug PEC via PEC–fumaric acid cocrystal. RSC Adv 2020; 10:36125-36134. [PMID: 35517067 PMCID: PMC9056957 DOI: 10.1039/d0ra06608g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/23/2020] [Indexed: 11/21/2022] Open
Abstract
A cocrystal of PEC with fumaric acid (FUA) (PEC–FUA, 1 : 1) was successfully obtained and characterized. The mean AUC0–24 h of the cocrystal is about 4.2 times that of free PEC.
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Affiliation(s)
- Long Li
- Sichuan Kelun Pharmaceutical Research Institute Co., Ltd
- Chengdu 610000
- China
| | - Xian-Hong Yin
- College of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning
- China
| | - Kai-Sheng Diao
- College of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning
- China
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16
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Dissolution Advantage of Nitazoxanide Cocrystals in the Presence of Cellulosic Polymers. Pharmaceutics 2019; 12:pharmaceutics12010023. [PMID: 31881696 PMCID: PMC7022799 DOI: 10.3390/pharmaceutics12010023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/19/2019] [Accepted: 12/22/2019] [Indexed: 12/26/2022] Open
Abstract
The effect of hydroxypropyl methylcellulose (HPMC) and methylcellulose (Methocel® 60 HG) on the dissolution behavior of two cocrystals derived from nitazoxanide (NTZ), viz., nitazoxanide-glutaric acid (NTZ-GLU, 1:1) and nitazoxanide-succinic acid (NTZ-SUC, 2:1), was explored. Powder dissolution experiments under non-sink conditions showed similar dissolution profiles for the cocrystals and pure NTZ. However, pre-dissolved cellulosic polymer in the phosphate dissolution medium (pH 7.5) modified the dissolution profile of NTZ when starting from the cocrystals, achieving transient drug supersaturation. Subsequent dissolution studies under sink conditions of polymer-based pharmaceutical powder formulations with NTZ-SUC cocrystals gave a significant improvement of the apparent solubility of NTZ when compared with analogous formulations of pure NTZ and the physical mixture of NTZ and SUC. Scanning electron microscopy and powder X-ray diffraction analysis of samples recovered after the powder dissolution studies showed that the cocrystals undergo fast dissolution, drug supersaturation and precipitation both in the absence and presence of polymer, suggesting that the solubilization enhancement is due to polymer-induced delay of nucleation and crystal growth of the less soluble NTZ form. The study demonstrates that the incorporation of an appropriate excipient in adequate concentration can be a key factor for inducing and maintaining the solubilization of poorly soluble drugs starting from co-crystallized solid forms. In such a way, cocrystals can be suitable for the development of solid dosage forms with improved bioavailability and efficacy in the treatment of important parasitic and viral diseases, among others.
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Isomorphous Crystals Formed by the Similar Supramolecular Motifs in Sorafenib Hydrochloride and Regorafenib Hydrochloride Salts. CRYSTALS 2019. [DOI: 10.3390/cryst9120649] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Sorafenib and regorafenib (or fluoro-sorafenib) are multikinase inhibitors active in the treatment of various human cancers, but their solubilities are very poor. To improve their solubilities, in this study, sorafenib hydrochloride (Sor·HCl, I) and regorafenib hydrochloride (Reg·HCl, II) have been prepared and their crystal structures were characterized. Their solubility properties in water were evaluated. Intriguingly, they are isomorphous crystal structures with the same space group and the similar unit cell dimensions, which were caused by the similar supramolecular patterns resulted by the formation of N–H···Cl− hydrogen bond instead of hydrogen bond between the protonated pyridinium cation and counterion. Moreover, the solubility properties displayed identical profiles. It may be concluded that a similar crystal structure leads to a comparable solubility profile.
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Rashid M, Malik MY, Singh SK, Chaturvedi S, Gayen JR, Wahajuddin M. Bioavailability Enhancement of Poorly Soluble Drugs: The Holy Grail in Pharma Industry. Curr Pharm Des 2019; 25:987-1020. [DOI: 10.2174/1381612825666190130110653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 01/24/2019] [Indexed: 02/07/2023]
Abstract
Background:
Bioavailability, one of the prime pharmacokinetic properties of a drug, is defined as the
fraction of an administered dose of unchanged drug that reaches the systemic circulation and is used to describe
the systemic availability of a drug. Bioavailability assessment is imperative in order to demonstrate whether the
drug attains the desirable systemic exposure for effective therapy. In recent years, bioavailability has become
the subject of importance in drug discovery and development studies.
Methods:
A systematic literature review in the field of bioavailability and the approaches towards its enhancement
have been comprehensively done, purely focusing upon recent papers. The data mining was performed
using databases like PubMed, Science Direct and general Google searches and the collected data was exhaustively
studied and summarized in a generalized manner.
Results:
The main prospect of this review was to generate a comprehensive one-stop summary of the numerous
available approaches and their pharmaceutical applications in improving the stability concerns, physicochemical
and mechanical properties of the poorly water-soluble drugs which directly or indirectly augment their bioavailability.
Conclusion:
The use of novel methods, including but not limited to, nano-based formulations, bio-enhancers,
solid dispersions, lipid-and polymer-based formulations which provide a wide range of applications not only
increases the solubility and permeability of the poorly bioavailable drugs but also improves their stability, and
targeting efficacy. Although, these methods have drastically changed the pharmaceutical industry demand for the
newer potential methods with better outcomes in the field of pharmaceutical science to formulate various dosage
forms with adequate systemic availability and improved patient compliance, further research is required.
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Affiliation(s)
- Mamunur Rashid
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Mohd Yaseen Malik
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Sandeep K. Singh
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Swati Chaturvedi
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Jiaur R Gayen
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
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19
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Song Y, Wang LY, Liu F, Li YT, Wu ZY, Yan CW. Simultaneously enhancing the in vitro/in vivo performances of acetazolamide using proline as a zwitterionic coformer for cocrystallization. CrystEngComm 2019. [DOI: 10.1039/c9ce00270g] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesized first acetazolamide zwitterionic cocrystal highlights simultaneously-increasing solubility and permeability of acetazolamide, which successfully translate into enhanced bioavailability.
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Affiliation(s)
- Yu Song
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
| | - Ling-Yang Wang
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
| | - Fang Liu
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
| | - Yan-Tuan Li
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
- Laboratory for Marine Drugs and Bioproducts
| | - Zhi-Yong Wu
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
| | - Cui-Wei Yan
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
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20
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Allu S, Suresh K, Bolla G, Mannava MKC, Nangia A. Role of hydrogen bonding in cocrystals and coamorphous solids: indapamide as a case study. CrystEngComm 2019. [DOI: 10.1039/c8ce01075g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Crystalline and amorphous stable binary compounds of indapamide for high solubility and permeability.
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Affiliation(s)
| | - Kuthuru Suresh
- School of Chemistry
- University of Hyderabad
- Hyderabad 500046
- India
- Technology Business Incubator
| | - Geetha Bolla
- School of Chemistry
- University of Hyderabad
- Hyderabad 500046
- India
| | | | - Ashwini Nangia
- School of Chemistry
- University of Hyderabad
- Hyderabad 500046
- India
- CSIR-National Chemical Laboratory
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21
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Peedika Paramban R, Afroz Z, Mondal PK, Sahoo J, Chopra D. Structural insights into salts and a salt polymorph of nitrogen containing small organic molecules. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Zha J, Zhang Q, Li M, Wang JR, Mei X. Improving Dissolution Properties by Polymers and Surfactants: A Case Study of Celastrol. J Pharm Sci 2018; 107:2860-2868. [PMID: 30017890 DOI: 10.1016/j.xphs.2018.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/28/2018] [Accepted: 07/03/2018] [Indexed: 12/25/2022]
Abstract
Two polymorphs of celastrol were discovered and fully characterized by X-ray powder diffraction, thermogravimetry analysis, and differential scanning calorimetry. The single-crystal structures of form I and the isostructural solvate of form II were disclosed by single-crystal X-ray diffraction. The apparent solubility and wettability of both the crystalline forms were determined. It was found that surfactant can significantly improve the solubility of celastrol up to more than 104 times. Tween 80 and sodium dodecyl sulfate largely improved the wettability of the 2 crystals. Form I shows better wettability than form II in all the buffer solutions with polymers and surfactants. Compared with form II, form I exhibits higher solubility in carboxymethylcellulose and polyvinylpyrrolidone media but much lower solubility in tween 80 and sodium dodecyl sulfate solutions. An investigation of wettability and solubility mechanisms was fully explored, and a hypothesis was proposed to understand the abnormal solubility differences.
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Affiliation(s)
- Jun Zha
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215213, China; Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Qi Zhang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Meiqi Li
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Jian-Rong Wang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xuefeng Mei
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
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23
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Yu Q, Yan Z, Bao J, Wang JR, Mei X. Taming photo-induced oxidation degradation of dihydropyridine drugs through cocrystallization. Chem Commun (Camb) 2018; 53:12266-12269. [PMID: 29058012 DOI: 10.1039/c7cc06992h] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cocrystallization of nifedipine (NFD) and isonicotinamide (INA) resulted in two monotropic cocrystal polymorphs. The thermodynamically more stable polymorph presents superior photostability compared to the other. Cocrystallization can be an efficient approach to address the stability deficit of dihydropyridine drugs.
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Affiliation(s)
- Qihui Yu
- College of Pharmacy, Nanchang University, Nanchang 330006, China
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24
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Abstract
Pharmaceutical cocrystals belong to a sub-class of cocrystals wherein one of the components is a drug molecule (or an active pharmaceutical ingredient, API) and the second is a benign food or drug grade additive (generally regarded as safe, GRAS). The two components are hydrogen-bonded in a fixed stoichiometric ratio in the crystal lattice. In the past decade, pharmaceutical cocrystals have demonstrated significant promise in their ability to modify the physicochemical and pharmacokinetic properties of drug substances, such as the solubility and dissolution rate, bioavailability, particle morphology and size, tableting and compaction, melting point, physical form, biochemical and hydration stability, and permeability. In this feature review, we highlight some prominent examples of drug cocrystals which exhibit variable hardness/softness and elasticity/plasticity depending on coformer selection, improvement of solubility and permeability in the same cocrystal, increase of the melting point for solid formulation, enhanced color performance, photostability and hydration stability, and a longer half-life. Cocrystals of flavanoids and polyphenols can make improved pharmaceuticals and also extend to the larger class of nutraceuticals. The application of crystal engineering to assemble ternary cocrystals expands this field to drug-drug cocrystals which may be useful in multi-drug resistance, mitigating side effects of drugs, or attenuating/enhancing drug action synergistically by rational selection. The advent of new techniques for structural characterization beyond the standard X-ray diffraction will provide a better understanding of drug phases which are at the borderline of crystalline-amorphous nature and even newer opportunities in the future.
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Affiliation(s)
- Geetha Bolla
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500 046, India.
| | - Ashwini Nangia
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500 046, India. and CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India.
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25
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Bao J, Zhang Z, Yan Z, Wang JR, Mei X. Cocrystallization in vitamin B9 gels to construct stoichiometry-controlled isostructural materials. CrystEngComm 2018. [DOI: 10.1039/c7ce02083j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potential application of structurally equivalent Cl, Br, and I in the design of isostructural materials in VB9 gels is illustrated by constructing pairs of solids that exhibit different fluorescence properties.
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Affiliation(s)
- Junjie Bao
- Nano Science and Technology Institute
- University of Science and Technology of China
- Suzhou
- China
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
| | - Zaiyong Zhang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Zhicheng Yan
- Nano Science and Technology Institute
- University of Science and Technology of China
- Suzhou
- China
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
| | - Jian-Rong Wang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Xuefeng Mei
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
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26
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Suresh K, Nangia A. Curcumin: pharmaceutical solids as a platform to improve solubility and bioavailability. CrystEngComm 2018. [DOI: 10.1039/c8ce00469b] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The remarkable improvements in the pharmacokinetics and high bioavailability of curcumin polymorphs, amorphous, cocrystals, eutectics, and coamorphous solids are discussed. The importance of pharmaceutical solids in the advanced formulation development of herbal and bioactive molecule curcumin is presented.
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Affiliation(s)
- Kuthuru Suresh
- School of Chemistry
- University of Hyderabad
- Hyderabad 500 046
- India
| | - Ashwini Nangia
- School of Chemistry
- University of Hyderabad
- Hyderabad 500 046
- India
- CSIR-National Chemical Laboratory
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27
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Cvetkovski A, Ferretti V, Bertolasi V. New pharmaceutical salts containing pyridoxine. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2017; 73:1064-1070. [PMID: 29206116 DOI: 10.1107/s2053229617015765] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 10/30/2017] [Indexed: 02/08/2023]
Abstract
Two mixed crystals were obtained by crystallizing the active pharmaceutical ingredient pyridoxine [systematic name: 4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol, PN] with (E)-3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid (ferulic acid) and 4-hydroxy-3,5-dimethoxybenzoic acid (syringic acid). PN and the coformers crystallize in the form of pharmaceutical salts in a 1:1 stoichiometric ratio, namely 3-hydroxy-4,5-bis(hydroxymethyl)-2-methylpyridin-1-ium (E)-3-(4-hydroxy-3-methoxyphenyl)prop-2-enoate, C8H12NO3+·C9H9O5-, and 3-hydroxy-4,5-bis(hydroxymethyl)-2-methylpyridin-1-ium 4-hydroxy-3,5-dimethoxybenzoate monohydrate, C8H12NO3+·C10H11O5-·H2O, the proton exchange between PN and the acidic partner being supported by the differences of the pKa values of the two components and by the C-O bond lengths of the carboxylate groups. Besides complex hydrogen-bonding networks, π-π interactions between aromatic moieties have been found to be important for the packing architecture in both crystals. Hirshfeld surface analysis was used to explore the intermolecular interactions in detail and compare them with the interactions found in similar pyridoxine/carboxylic acid salts.
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Affiliation(s)
- Aleksandar Cvetkovski
- Faculty of Medical Sciences, University Goce Delcev, Krste Misirkov bb, 2000 PO 201, Štip, The Former Yugoslav Republic of Macedonia
| | - Valeria Ferretti
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, via Fossato di Mortara 17, Ferrara I-44121, Italy
| | - Valerio Bertolasi
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, via Fossato di Mortara 17, Ferrara I-44121, Italy
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28
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Berry DJ, Steed JW. Pharmaceutical cocrystals, salts and multicomponent systems; intermolecular interactions and property based design. Adv Drug Deliv Rev 2017; 117:3-24. [PMID: 28344021 DOI: 10.1016/j.addr.2017.03.003] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 01/01/2023]
Abstract
As small molecule drugs become harder to develop and less cost effective for patient use, efficient strategies for their property improvement become increasingly important to global health initiatives. Improvements in the physical properties of Active Pharmaceutical Ingredients (APIs), without changes in the covalent chemistry, have long been possible through the application of binary component solids. This was first achieved through the use of pharmaceutical salts, within the last 10-15years with cocrystals and more recently coamorphous systems have also been consciously applied to this problem. In order to rationally discover the best multicomponent phase for drug development, intermolecular interactions need to be considered at all stages of the process. This review highlights the current thinking in this area and the state of the art in: pharmaceutical multicomponent phase design, the intermolecular interactions in these phases, the implications of these interactions on the material properties and the pharmacokinetics in a patient.
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Affiliation(s)
- David J Berry
- Durham University, Division of Pharmacy, Queen's Campus, Stockton on Tees, TS17 6BH, UK.
| | - Jonathan W Steed
- Department of Chemistry, Durham University, University Science Laboratories, South Road, Durham, DH1 3LE, UK
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29
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He H, Zhang Q, Wang JR, Mei X. Structure, physicochemical properties and pharmacokinetics of resveratrol and piperine cocrystals. CrystEngComm 2017. [DOI: 10.1039/c7ce01468f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The in vitro dissolution of RSV–Pip co-1 has a strong diminishing effect on the pharmacokinetics, despite the bioenhancer properties of Pip.
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Affiliation(s)
- Hongyan He
- Pharmaceutical, Analytical & Solid-State Chemistry Research Centre
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Qi Zhang
- Pharmaceutical, Analytical & Solid-State Chemistry Research Centre
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Jian-Rong Wang
- Pharmaceutical, Analytical & Solid-State Chemistry Research Centre
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Xuefeng Mei
- Pharmaceutical, Analytical & Solid-State Chemistry Research Centre
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
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30
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Suresh K, Khandavilli UBR, Gunnam A, Nangia A. Polymorphism, isostructurality and physicochemical properties of glibenclamide salts. CrystEngComm 2017. [DOI: 10.1039/c6ce02295b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Ganduri R, Cherukuvada S, Sarkar S, Guru Row TN. Manifestation of cocrystals and eutectics among structurally related molecules: towards understanding the factors that control their formation. CrystEngComm 2017. [DOI: 10.1039/c6ce02003h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Cherukuvada S, Kaur R, Guru Row TN. Co-crystallization and small molecule crystal form diversity: from pharmaceutical to materials applications. CrystEngComm 2016. [DOI: 10.1039/c6ce01835a] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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