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Ghaffari A(A, Matter BA, Hartman RR, Bourne DWA, Wang Y, Choi S, Kompella UB. Hot-Melt Extrusion-Based Dexamethasone-PLGA Implants: Physicochemical, Physicomechanical, and Surface Morphological Properties and In Vitro Release Corrected for Drug Degradation. Pharmaceutics 2024; 16:895. [PMID: 39065592 PMCID: PMC11280434 DOI: 10.3390/pharmaceutics16070895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/21/2024] [Accepted: 06/28/2024] [Indexed: 07/28/2024] Open
Abstract
Developing bioequivalent (BE) generic products of complex dosage forms like intravitreal implants (IVIs) of corticosteroids such as dexamethasone prepared using hot-melt extrusion (HME), based on biodegradable poly (lactide-co-glycolide) (PLGA) polymers, can be challenging. A better understanding of the relationship between the physicochemical and physicomechanical properties of IVIs and their effect on drug release and ocular bioavailability is crucial to develop novel BE approaches. It is possible that the key physicochemical and physicomechanical properties of IVIs such as drug properties, implant surface roughness, mechanical strength and toughness, and implant erosion could vary for different compositions, resulting in changes in drug release. Therefore, this study investigated the hypothesis that biodegradable ophthalmic dexamethasone-loaded implants with 20% drug and 80% PLGA polymer(s) prepared using single-pass hot-melt extrusion (HME) differ in physicochemical and/or physicomechanical properties and drug release depending on their PLGA polymer composition. Acid end-capped PLGA was mixed with an ester end-capped PLGA to make three formulations: HME-1, HME-2, and HME-3, containing 100%, 80%, and 60% w/w of the acid end-capped PLGA. Further, this study compared the drug release between independent batches of each composition. In vitro release tests (IVRTs) indicated that HME-1 implants can be readily distinguished by their release profiles from HME-2 and HME-3, with the release being similar for HME-2 and HME-3. In the early stages, drug release generally correlated well with polymer composition and implant properties, with the release increasing with PLGA acid content (for day-1 release, R2 = 0.80) and/or elevated surface roughness (for day-1 and day-14 release, R2 ≥ 0.82). Further, implant mechanical strength and toughness correlated inversely with PLGA acid content and day-1 drug release. Drug release from independent batches was similar for each composition. The findings of this project could be helpful for developing generic PLGA polymer-based ocular implant products.
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Affiliation(s)
- Alireza (Allen) Ghaffari
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (A.G.); (B.A.M.); (R.R.H.); (D.W.A.B.)
- NextHerbal Labs, LLC, Aurora, CO 80045, USA
| | - Brock A. Matter
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (A.G.); (B.A.M.); (R.R.H.); (D.W.A.B.)
| | - Rachel R. Hartman
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (A.G.); (B.A.M.); (R.R.H.); (D.W.A.B.)
| | - David W. A. Bourne
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (A.G.); (B.A.M.); (R.R.H.); (D.W.A.B.)
| | - Yan Wang
- Center for Drug Evaluation and Research, Food and Drug Administration, White Oak Campus, Silver Spring, MD 20993, USA; (Y.W.); (S.C.)
| | - Stephanie Choi
- Center for Drug Evaluation and Research, Food and Drug Administration, White Oak Campus, Silver Spring, MD 20993, USA; (Y.W.); (S.C.)
| | - Uday B. Kompella
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (A.G.); (B.A.M.); (R.R.H.); (D.W.A.B.)
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
- Department of Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
- Colorado Center for Nanomedicine and Nano Safety, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
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Bezerra GSN, De Lima GG, Colbert DM, Halligan E, Geever J, Geever L. Micro-Injection Moulding of PEO/PCL Blend–Based Matrices for Extended Oral Delivery of Fenbendazole. Pharmaceutics 2023; 15:pharmaceutics15030900. [PMID: 36986761 PMCID: PMC10051197 DOI: 10.3390/pharmaceutics15030900] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/12/2023] Open
Abstract
Fenbendazole (FBZ) is a broad-spectrum anthelmintic administered orally to ruminants; nevertheless, its poor water solubility has been the main limitation to reaching satisfactory and sustained levels at the site of the target parasites. Hence, the exploitation of hot-melt extrusion (HME) and micro-injection moulding (µIM) for the manufacturing of extended-release tablets of plasticised solid dispersions of poly(ethylene oxide) (PEO)/polycaprolactone (PCL) and FBZ was investigated due to their unique suitability for semi-continuous manufacturing of pharmaceutical oral solid dosage forms. High-performance liquid chromatography (HPLC) analysis demonstrated a consistent and uniform drug content in the tablets. Thermal analysis using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) suggested the amorphous state of the active ingredient, which was endorsed by powder X-ray diffraction spectroscopy (pXRD). Fourier transform infrared spectroscopy (FTIR) analysis did not display any new peak indicative of either a chemical interaction or degradation. Scanning electron microscopy (SEM) images showed smoother surfaces and broader pores as we increased the PCL content. Electron-dispersive X-ray spectroscopy (EDX) revealed that the drug was homogeneously distributed within the polymeric matrices. Drug release studies attested that all moulded tablets of amorphous solid dispersions improved the drug solubility, with the PEO/PCL blend–based matrices showing drug release by Korsmeyer–Peppas kinetics. Thus, HME coupled with µIM proved to be a promising approach towards a continuous automated manufacturing process for the production of oral solid dispersions of benzimidazole anthelmintics to grazing cattle.
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Affiliation(s)
- Gilberto S. N. Bezerra
- PRISM Research Institute, Technological University of the Shannon: Midlands Midwest, N37HD68 Athlone, Ireland
- Correspondence: (G.S.N.B.); (L.G.)
| | - Gabriel G. De Lima
- PRISM Research Institute, Technological University of the Shannon: Midlands Midwest, N37HD68 Athlone, Ireland
- Programa de Pós-Graduação em Engenharia e Ciência dos Materiais—PIPE, Universidade Federal do Paraná, Curitiba 81531-980, Brazil
| | - Declan M. Colbert
- PRISM Research Institute, Technological University of the Shannon: Midlands Midwest, N37HD68 Athlone, Ireland
| | - Elaine Halligan
- PRISM Research Institute, Technological University of the Shannon: Midlands Midwest, N37HD68 Athlone, Ireland
| | - Joseph Geever
- PRISM Research Institute, Technological University of the Shannon: Midlands Midwest, N37HD68 Athlone, Ireland
| | - Luke Geever
- PRISM Research Institute, Technological University of the Shannon: Midlands Midwest, N37HD68 Athlone, Ireland
- Correspondence: (G.S.N.B.); (L.G.)
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3
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Burgos GL, Hernández-Espinell JR, Graciani-Massa T, Yao X, Borchardt-Setter KA, Yu L, López-Mejías V, Stelzer T. Role of Heteronucleants in Melt Crystallization of Crystalline Solid Dispersions. CRYSTAL GROWTH & DESIGN 2023; 23:49-58. [PMID: 38107196 PMCID: PMC10722868 DOI: 10.1021/acs.cgd.2c00444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Few publications exist concerning polymorphic control during melt crystallization, particularly when employing heteronucleants. Here, the influence of a polymeric thin film (polyethylene terephthalate, PET) on the crystallization from melt of the polymorphic compound acetaminophen (ACM) in polyethylene glycol (PEG) was investigated. Molten ACM-PEG at different compositions was monitored using in situ Raman spectroscopy for nucleation induction time measurements and phase identification. Furthermore, X-ray diffraction (XRD) served to analyze the preferred orientation (PO) of the pastilles (solidified melt droplets) on PET-coated and uncoated substrates. The results indicate that PET-coated substrates qualitatively accelerate the nucleation of ACM form II (ACM II) in PEG compared to uncoated glass substrates. Additionally, the occurrence of ACM II in PEG was increased by an average of 10% when crystallized on PET-coated substrates compared to uncoated substrates. Overall, these results suggest that ACM can interact through hydrogen bonding with the PET-coated substrate, leading to faster nucleation. This investigation illustrates the effect of PET-coated substrates in the selective crystallization of ACM II in PEG as crystalline solid dispersions (CSDs). Ultimately, the results suggest the implementation of polymeric heteronucleants in melt crystallization processes, specifically, in advanced polymer-based formulation processes for the enhanced polymorphic form control of pharmaceutical compounds in CSDs.
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Affiliation(s)
- Giovanni López Burgos
- Department of Pharmaceutical Sciences, University of Puerto Rico, San Juan, Puerto Rico 00936, United States; Molecular Sciences Research Center, Crystallization Design Institute, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
| | - José R Hernández-Espinell
- Molecular Sciences Research Center, Crystallization Design Institute, University of Puerto Rico, San Juan, Puerto Rico 00926, United States; Department of Chemistry, University of Puerto Rico, San Juan, Puerto Rico 00931, United States
| | - Tatiana Graciani-Massa
- Molecular Sciences Research Center, Crystallization Design Institute, University of Puerto Rico, San Juan, Puerto Rico 00926, United States; Department of Chemistry, University of Puerto Rico, San Juan, Puerto Rico 00931, United States
| | - Xin Yao
- Department of Chemistry, School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Kennedy A Borchardt-Setter
- Department of Chemistry, School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Lian Yu
- Department of Chemistry, School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Vilmalí López-Mejías
- Molecular Sciences Research Center, Crystallization Design Institute, University of Puerto Rico, San Juan, Puerto Rico 00926, United States; Department of Chemistry, University of Puerto Rico, San Juan, Puerto Rico 00931, United States
| | - Torsten Stelzer
- Department of Pharmaceutical Sciences, University of Puerto Rico, San Juan, Puerto Rico 00936, United States; Molecular Sciences Research Center, Crystallization Design Institute, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
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Li X, Zhang Z, Harris A, Yang L. Bridging the gap between fundamental research and product development of long acting injectable PLGA microspheres. Expert Opin Drug Deliv 2022; 19:1247-1264. [PMID: 35863759 DOI: 10.1080/17425247.2022.2105317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Long acting Injectable PLGA microspheres have gained more and more interest and attention in the field of life cycle management of pharmaceutical products due to their biocompatibility and biodegradability. So far, a multitude of trial-and-error experiments at lab scale have been used for establishing the correlation relationship between critical process parameters, critical material attributes and critical quality attributes. However, few published studies have elaborated on the development of PLGA microspheres from an industrial perspective. AREAS COVERED In this review, the scale-up feasibility of translational technologies of PLGA microspheres manufacturing have been evaluated. Additionally, state-of-the-art of technologies and facilities in PLGA development have been summarized. Meanwhile, the industrial knowledge matrix of PLGA microspheres development and research are establishing which provide comprehensive insight for understanding properties of PLGA microspheres as controlled/sustained release vehicle. EXPERT OPINION There is still big gap between fundamental research in academic institute and product development in pharmaceuticals. Therefore, the difference and connection between them should be identified gradually for better understanding of PLGA microspheres development.
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Affiliation(s)
- Xun Li
- Ferring Product Development China, Global R&D life cycle management department, Ferring Pharmaceuticals (Asia) Company Limited, Beijing China
| | - Zhanpeng Zhang
- Ferring Product Development China, Global R&D life cycle management department, Ferring Pharmaceuticals (Asia) Company Limited, Beijing China
| | - Alan Harris
- Global R&D life cycle management department, Ferring International Center SA, St-Prex, Switzerland
| | - Lin Yang
- Ferring Product Development China, Global R&D life cycle management department, Ferring Pharmaceuticals (Asia) Company Limited, Beijing China
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Hernández Espinell JR, Toro V, Yao X, Yu L, Lopéz-Mejías V, Stelzer T. Solvent-Mediated Polymorphic Transformations in Molten Polymers: The Account of Acetaminophen. Mol Pharm 2022; 19:2183-2190. [PMID: 35475360 PMCID: PMC10950320 DOI: 10.1021/acs.molpharmaceut.2c00035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Solvent-mediated polymorphic transformations (SMPTs) employing nonconventional solvents (polymer melts) is an underexplored research topic that limits the application of polymer-based formulation processes. Acetaminophen (ACM), a widely studied active pharmaceutical ingredient (API), is known to present SMPTs spontaneously (<30 s) in conventional solvents such as ethanol. In situ Raman spectroscopy was employed to monitor the induction time for the SMPT of ACM II to I in polyethylene glycol (PEG) melts of different molecular weights (Mw, 4000, 10 000, 20 000, 35 000 g/mol). The results presented here demonstrate that the induction time for the SMPT of ACM II to I in PEG melts is driven by its diffusivity through the polymer melts. Compared to conventional solvents (i.e., ethanol) the mass transfer (diffusion coefficient, D) in melts is significantly hindered (Dethanol = 4.84 × 10-9 m2/s > DPEGs = 5.32 × 10-11-8.36 × 10-14 m2/s). Ultimately, the study proves that the induction time for the SMPT can be tuned by understanding the dispersant's physicochemical properties (i.e., η) and, thus, the D of the solute in the dispersant. This allows one to kinetically access and stabilize metastable forms or delay their transformations under given process conditions.
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Affiliation(s)
- José R Hernández Espinell
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico 00931, United States
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR 00926, United States
| | - Verónica Toro
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico 00931, United States
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR 00926, United States
| | - Xin Yao
- School of Pharmacy and Department of Chemistry, University of Wisconsin─Madison, Madison, Wisconsin 53705, United States
| | - Lian Yu
- School of Pharmacy and Department of Chemistry, University of Wisconsin─Madison, Madison, Wisconsin 53705, United States
| | - Vilmalí Lopéz-Mejías
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico 00931, United States
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR 00926, United States
| | - Torsten Stelzer
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR 00926, United States
- Department of Pharmaceutical Sciences, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico 00936, United States
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6
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Ghaemmaghamian Z, Zarghami R, Walker G, O'Reilly E, Ziaee A. Stabilizing vaccines via drying: Quality by design considerations. Adv Drug Deliv Rev 2022; 187:114313. [PMID: 35597307 DOI: 10.1016/j.addr.2022.114313] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/26/2022] [Accepted: 04/26/2022] [Indexed: 12/12/2022]
Abstract
Pandemics and epidemics are continually challenging human beings' health and imposing major stresses on the societies particularly over the last few decades, when their frequency has increased significantly. Protecting humans from multiple diseases is best achieved through vaccination. However, vaccines thermal instability has always been a hurdle in their widespread application, especially in less developed countries. Furthermore, insufficient vaccine processing capacity is also a major challenge for global vaccination programs. Continuous drying of vaccine formulations is one of the potential solutions to these challenges. This review highlights the challenges on implementing the continuous drying techniques for drying vaccines. The conventional drying methods, emerging technologies and their adaptation by biopharmaceutical industry are investigated considering the patented technologies for drying of vaccines. Moreover, the current progress in applying Quality by Design (QbD) in each of the drying techniques considering the critical quality attributes (CQAs), critical process parameters (CPPs) are comprehensively reviewed. An expert advice is presented on the required actions to be taken within the biopharmaceutical industry to move towards continuous stabilization of vaccines in the realm of QbD.
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Affiliation(s)
- Zahra Ghaemmaghamian
- Pharmaceutical Engineering Research Laboratory, Pharmaceutical Process Centers of Excellence, School of Chemical Engineering, University of Tehran, Tehran, Iran
| | - Reza Zarghami
- Pharmaceutical Engineering Research Laboratory, Pharmaceutical Process Centers of Excellence, School of Chemical Engineering, University of Tehran, Tehran, Iran
| | - Gavin Walker
- SSPC, The SFI Research Centre of Pharmaceuticals, Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick, Ireland
| | - Emmet O'Reilly
- SSPC, The SFI Research Centre of Pharmaceuticals, Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick, Ireland
| | - Ahmad Ziaee
- SSPC, The SFI Research Centre of Pharmaceuticals, Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick, Ireland.
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7
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Lee JH, Park C, Weon KY, Kang CY, Lee BJ, Park JB. Improved Bioavailability of Poorly Water-Soluble Drug by Targeting Increased Absorption through Solubility Enhancement and Precipitation Inhibition. Pharmaceuticals (Basel) 2021; 14:ph14121255. [PMID: 34959655 PMCID: PMC8707685 DOI: 10.3390/ph14121255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022] Open
Abstract
Itraconazole (ITZ) is a class II drug according to the biopharmaceutical classification system. Its solubility is pH 3-dependent, and it is poorly water-soluble. Its pKa is 3.7, which makes it a weak base drug. The aim of this study was to prepare solid dispersion (SD) pellets to enhance the release of ITZ into the gastrointestinal environment using hot-melt extrusion (HME) technology and a pelletizer. The pellets were then filled into capsules and evaluated in vitro and in vivo. The ITZ changed from a crystalline state to an amorphous state during the HME process, as determined using DSC and PXRD. In addition, its release into the gastrointestinal tract was enhanced, as was the level of ITZ recrystallization, which was lower than the marketed drug (Sporanox®), as assessed using an in vitro method. In the in vivo study that was carried out in rats, the AUC0-48h of the commercial formulation, Sporanox®, was 1073.9 ± 314.7 ng·h·mL-1, and the bioavailability of the SD pellet (2969.7 ± 720.6 ng·h·mL-1) was three-fold higher than that of Sporanox® (*** p < 0.001). The results of the in vivo test in beagle dogs revealed that the AUC0-24h of the SD-1 pellet (which was designed to enhance drug release into gastric fluids) was 3.37 ± 3.28 μg·h·mL-1 and that of the SD-2 pellet (which was designed to enhance drug release in intestinal fluids) was 7.50 ± 4.50 μg·h·mL-1. The AUC of the SD-2 pellet was 2.2 times higher than that of the SD-1 pellet. Based on pharmacokinetic data, ITZ would exist in a supersaturated state in the area of drug absorption. These results indicated that the absorption area is critical for improving the bioavailability of ITZ. Consequently, the bioavailability of ITZ could be improved by inhibiting precipitation in the absorption area.
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Affiliation(s)
- Ju-Hyun Lee
- College of Pharmacy, Sahmyook University, Seoul 01795, Korea; (J.-H.L.); (C.-Y.K.)
| | - Chulhun Park
- Faculty of Pharmacy & Pharmaceutical Sciences, University of Alberta, Edmonton, AB T6G 2E1, Canada;
| | - Kwon-Yeon Weon
- College of Pharmacy, Catholic University of Daegu, Gyeongsan-si 38430, Korea;
| | - Chin-Yang Kang
- College of Pharmacy, Sahmyook University, Seoul 01795, Korea; (J.-H.L.); (C.-Y.K.)
| | - Beom-Jin Lee
- College of Pharmacy, Ajou University, Suwon 16499, Korea;
| | - Jun-Bom Park
- College of Pharmacy, Sahmyook University, Seoul 01795, Korea; (J.-H.L.); (C.-Y.K.)
- Bioavailability Control Lab, Sahmyook University, Seoul 01795, Korea
- Correspondence: ; Tel.: +82-2-3399-1624
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Sohail Arshad M, Zafar S, Yousef B, Alyassin Y, Ali R, AlAsiri A, Chang MW, Ahmad Z, Ali Elkordy A, Faheem A, Pitt K. A review of emerging technologies enabling improved solid oral dosage form manufacturing and processing. Adv Drug Deliv Rev 2021; 178:113840. [PMID: 34147533 DOI: 10.1016/j.addr.2021.113840] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 06/08/2021] [Accepted: 06/14/2021] [Indexed: 12/20/2022]
Abstract
Tablets are the most widely utilized solid oral dosage forms because of the advantages of self-administration, stability, ease of handling, transportation, and good patient compliance. Over time, extensive advances have been made in tableting technology. This review aims to provide an insight about the advances in tablet excipients, manufacturing, analytical techniques and deployment of Quality by Design (QbD). Various excipients offering novel functionalities such as solubility enhancement, super-disintegration, taste masking and drug release modifications have been developed. Furthermore, co-processed multifunctional ready-to-use excipients, particularly for tablet dosage forms, have benefitted manufacturing with shorter processing times. Advances in granulation methods, including moist, thermal adhesion, steam, melt, freeze, foam, reverse wet and pneumatic dry granulation, have been proposed to improve product and process performance. Furthermore, methods for particle engineering including hot melt extrusion, extrusion-spheronization, injection molding, spray drying / congealing, co-precipitation and nanotechnology-based approaches have been employed to produce robust tablet formulations. A wide range of tableting technologies including rapidly disintegrating, matrix, tablet-in-tablet, tablet-in-capsule, multilayer tablets and multiparticulate systems have been developed to achieve customized formulation performance. In addition to conventional invasive characterization methods, novel techniques based on laser, tomography, fluorescence, spectroscopy and acoustic approaches have been developed to assess the physical-mechanical attributes of tablet formulations in a non- or minimally invasive manner. Conventional UV-Visible spectroscopy method has been improved (e.g. fiber-optic probes and UV imaging-based approaches) to efficiently record the dissolution profile of tablet formulations. Numerous modifications in tableting presses have also been made to aid machine product changeover, cleaning, and enhance efficiency and productivity. Various process analytical technologies have been employed to track the formulation properties and critical process parameters. These advances will contribute to a strategy for robust tablet dosage forms with excellent performance attributes.
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Affiliation(s)
| | - Saman Zafar
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Bushra Yousef
- Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom
| | - Yasmine Alyassin
- Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom
| | - Radeyah Ali
- Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom
| | - Ali AlAsiri
- Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom; Pharmacy College, Pharmaceutics Department, Najran University, Najran, Saudi Arabia
| | - Ming-Wei Chang
- Nanotechnology and Integrated Bioengineering Centre, University of Ulster, Jordanstown Campus, Newtownabbey BT37 0QB, Northern Ireland, United Kingdom
| | - Zeeshan Ahmad
- Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom
| | - Amal Ali Elkordy
- School of Pharmacy and Pharmaceutical Sciences, Faculty of Health Sciences and Wellbeing,University of Sunderland, Sunderland, United Kingdom
| | - Ahmed Faheem
- School of Pharmacy and Pharmaceutical Sciences, Faculty of Health Sciences and Wellbeing,University of Sunderland, Sunderland, United Kingdom; Faculty of Pharmacy, University of Tanta, Tanta, Egypt
| | - Kendal Pitt
- Manufacturing, Science & Technology, Pharma Supply Chain, GlaxoSmithKline, Ware, United Kingdom.
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9
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Tanaka R, Ishihara S, Sasaki T, Hattori Y, Otsuka M. Injection-Molded Coamorphous Tablets: Analysis of Intermolecular Interaction and Crystallization Propensity. J Pharm Sci 2021; 110:3289-3297. [PMID: 34147517 DOI: 10.1016/j.xphs.2021.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 05/28/2021] [Accepted: 05/29/2021] [Indexed: 11/26/2022]
Abstract
The processing steps involved in converting from a powder to a tablet entail numerous operations in a which the coamorphous system is recrystallized and dissociated easily. This research focused on (i) a single-step preparation of a coamorphous tablet during injection molding (IM) from the bulk powder, and (ii) a mechanistic characterization of the coamorphous formulation. We selected several organic acids [citric acid, succinic acid, tartaric acid, and malic acid] in an effort to compound with basic loratadine (a poorly water-soluble drug). Loratadine-acids coamorphous tablets were produced via an IM process, and the dissolution was more enhanced than in the pure loratadine amorphous. The interaction was analyzed by FT-IR and terahertz spectroscopies. Each tablet was stored at 40 °C/75%RH, and then XRD patterns were acquired at the desired timepoints. In summary, loratadine exhibited ionic interaction with each acid, and the physical stability of the coamorphous tablet was in proportion to the loratadine-acids interaction strength. Terahertz spectra detected the molecular mobility, which plays an important role in the crystallization propensity of a coamorphous system. This understanding offers a framework for robust coamorphous tablet formulation using the IM methodology.
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Affiliation(s)
- Ryoma Tanaka
- Graduate School of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan
| | - Sae Ishihara
- Graduate School of Medical Photonics, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, Shizuoka 432-8011, Japan
| | - Tetsuo Sasaki
- Graduate School of Medical Photonics, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, Shizuoka 432-8011, Japan; Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, Shizuoka 432-8011, Japan
| | - Yusuke Hattori
- Graduate School of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan; Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan
| | - Makoto Otsuka
- Graduate School of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan; Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, Shizuoka 432-8011, Japan; Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
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10
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Simões MF, Pinto RMA, Simões S. Hot-Melt Extrusion: a Roadmap for Product Development. AAPS PharmSciTech 2021; 22:184. [PMID: 34142250 DOI: 10.1208/s12249-021-02017-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/14/2021] [Indexed: 01/01/2023] Open
Abstract
Hot-melt extrusion has found extensive application as a feasible pharmaceutical technological option over recent years. HME applications include solubility enhancement, taste masking, and sustained drug release. As bioavailability enhancement is a hot topic of today's science, one of the main applications of HME is centered on amorphous solid dispersions. This review describes the most significant aspects of HME technology and its use to prepare solid dispersions as a drug formulation strategy to enhance the solubility of poorly soluble drugs. It also addresses molecular and thermodynamic features critical for the physicochemical properties of these systems, mainly in what concerns miscibility and physical stability. Moreover, the importance of applying the Quality by Design philosophy in drug development is also discussed, as well as process analytical technologies in pharmaceutical HME monitoring, under the current standards of product development and regulatory guidance. Graphical Abstract.
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Forster SP, Dippold E, Chiang T. Twin-Screw Melt Granulation for Oral Solid Pharmaceutical Products. Pharmaceutics 2021; 13:pharmaceutics13050665. [PMID: 34066332 PMCID: PMC8148162 DOI: 10.3390/pharmaceutics13050665] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 12/16/2022] Open
Abstract
This article highlights the advantages of pharmaceutical continuous melt granulation by twin-screw extrusion. The different melt granulation process options and excipients are described and compared, and a case is made for expanded use of twin-screw melt granulation since it is a flexible and continuous process. Methods for binder selection are profiled with a focus on rheology and physical stability impacts. For twin-screw melt granulation, the mechanism of granulation and process impact on granule properties are described. Pharmaceutical applications of melt granulation ranging from immediate release of soluble and insoluble APIs, taste-masking, and sustained release formulation are reviewed, demonstrating the range of possibilities afforded by twin-screw melt granulation.
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Quality considerations on the pharmaceutical applications of fused deposition modeling 3D printing. Int J Pharm 2021; 592:119901. [DOI: 10.1016/j.ijpharm.2020.119901] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 12/18/2022]
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Testa CJ, Hu C, Shvedova K, Wu W, Sayin R, Casati F, Halkude BS, Hermant P, Shen DE, Ramnath A, Su Q, Born SC, Takizawa B, Chattopadhyay S, O’Connor TF, Yang X, Ramanujam S, Mascia S. Design and Commercialization of an End-to-End Continuous Pharmaceutical Production Process: A Pilot Plant Case Study. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00383] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Christopher J. Testa
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Chuntian Hu
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Khrystyna Shvedova
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Wei Wu
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Ridade Sayin
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Federica Casati
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
- IMA S.p.A., Via I Maggio 14-16, Ozzano dell’Emilia, Bologna 40064, Italy
| | - Bhakti S. Halkude
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Paul Hermant
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Dongying Erin Shen
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Anjana Ramnath
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Qinglin Su
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Stephen C. Born
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | - Bayan Takizawa
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
| | | | - Thomas F. O’Connor
- Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, Maryland 20993, United States
| | - Xiaochuan Yang
- Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, Maryland 20993, United States
| | - Sukumar Ramanujam
- USV Private Limited, Arvind Vithal Gandhi Chowk, BSD Marg, Station Road, Govandi East, Mumbai 400080, India
| | - Salvatore Mascia
- CONTINUUS Pharmaceuticals, 25R Olympia Ave, Woburn, Massachusetts 01801, United States
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Deshmukh S, Paradkar A, Abrahmsén-Alami S, Govender R, Viridén A, Winge F, Matic H, Booth J, Kelly A. Injection moulded controlled release amorphous solid dispersions: Synchronized drug and polymer release for robust performance. Int J Pharm 2020; 575:118908. [PMID: 31809859 DOI: 10.1016/j.ijpharm.2019.118908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 11/06/2019] [Accepted: 11/24/2019] [Indexed: 12/18/2022]
Abstract
A study has been carried out to investigate controlled release performance of caplet shaped injection moulded (IM) amorphous solid dispersion (ASD) tablets based on the model drug AZD0837 and polyethylene oxide (PEO). The physical/chemical storage stability and release robustness of the IM tablets were characterized and compared to that of conventional extended release (ER) hydrophilic matrix tablets of the same raw materials and compositions manufactured via direct compression (DC). To gain an improved understanding of the release mechanisms, the dissolution of both the polymer and the drug were studied. Under conditions where the amount of dissolution media was limited, the controlled release ASD IM tablets demonstrated complete and synchronized release of both PEO and AZD0837 whereas the release of AZD0837 was found to be slower and incomplete from conventional direct compressed ER hydrophilic matrix tablets. The results clearly indicated that AZD0837 remained amorphous throughout the dissolution process and was maintained in a supersaturated state and hence kept stable with the aid of the polymeric carrier when released in a synchronized manner. In addition, it was found that the IM tablets were robust to variation in hydrodynamics of the dissolution environment and PEO molecular weight.
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Affiliation(s)
- Shivprasad Deshmukh
- Centre for Pharmaceutical Engineering Science, University of Bradford, UK; Pharmaceutical Technology and Development, AstraZeneca, Macclesfield, UK
| | - Anant Paradkar
- Centre for Pharmaceutical Engineering Science, University of Bradford, UK
| | | | - Rydvikha Govender
- Pharmaceutical Technology and Development, AstraZeneca Gothenburg, Sweden; Chalmers University of Technology, Gothenburg, Sweden
| | - Anna Viridén
- Pharmaceutical Technology and Development, AstraZeneca Gothenburg, Sweden
| | - Fredrik Winge
- Pharmaceutical Technology and Development, AstraZeneca Gothenburg, Sweden
| | - Hanna Matic
- Pharmaceutical Technology and Development, AstraZeneca Gothenburg, Sweden
| | - Jonathan Booth
- Pharmaceutical Technology and Development, AstraZeneca, Macclesfield, UK
| | - Adrian Kelly
- Centre for Pharmaceutical Engineering Science, University of Bradford, UK.
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Ortiz KS, Hernández Espinell JR, Ortiz Torres D, Lopéz-Mejías V, Stelzer T. Polymorphism in Solid Dispersions. CRYSTAL GROWTH & DESIGN 2020; 20:713-722. [PMID: 38107251 PMCID: PMC10723824 DOI: 10.1021/acs.cgd.9b01138] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Solid dispersions embed active pharmaceutical ingredients in polymeric carriers to improve their solubility. Three solid dispersion preparation techniques are typically employed: solvent evaporation, solvent-fusion, and fusion methods. Although these are also widely recommended as preparative methods for phase diagram determination, few examples exist concerning their effect on the resulting polymorph, once the solid dispersion is produced. In this study, the influence of these methods on the polymorphic form obtained in crystalline solid dispersions (CSDs) composed of flufenamic acid (FFA) and poly(ethylene glycol) was investigated. The physical mixtures and CSDs were characterized by powder X-ray diffraction, infrared spectroscopy, and differential scanning calorimetry. The results reveal that the fusion method leads to concomitant polymorphs (mainly FFA I and III) in the CSDs. In contrast, the solvent evaporation and solvent-fusion methods lead to FFA III. Collectively, these results demonstrate that preparative methods have a significant influence on the phase diagrams determined (average relative deviation ≤8%), which are often used to justify the design space of manufacturing processes, including those deemed "continuous." Consequently, choosing a preparation method that results in the desired polymorph is crucial to ensure accurate determination of phase diagrams and critical quality attributes of formulations.
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Affiliation(s)
- Karina Sanabria Ortiz
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico 00931, United States
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
| | - José R. Hernández Espinell
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico 00931, United States
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
| | - Desire Ortiz Torres
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico 00931, United States
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
| | - Vilmalí Lopéz-Mejías
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico 00931, United States
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
| | - Torsten Stelzer
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
- Department of Pharmaceutical Sciences, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico 00936, United States
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Simões MF, Pinto RM, Simões S. Hot-melt extrusion in the pharmaceutical industry: toward filing a new drug application. Drug Discov Today 2019; 24:1749-1768. [DOI: 10.1016/j.drudis.2019.05.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/29/2019] [Accepted: 05/17/2019] [Indexed: 01/30/2023]
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Sensitivity of a continuous hot-melt extrusion and strand pelletization line to control actions and composition variation. Int J Pharm 2019; 566:239-253. [DOI: 10.1016/j.ijpharm.2019.05.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/14/2019] [Accepted: 05/15/2019] [Indexed: 11/20/2022]
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Fuenmayor E, Forde M, Healy AV, Devine DM, Lyons JG, McConville C, Major I. Comparison of fused-filament fabrication to direct compression and injection molding in the manufacture of oral tablets. Int J Pharm 2019; 558:328-340. [PMID: 30659922 DOI: 10.1016/j.ijpharm.2019.01.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/09/2019] [Accepted: 01/11/2019] [Indexed: 01/12/2023]
Abstract
Oral tablets are a convenient form to deliver active pharmaceutical ingredients (API) and have a high level of acceptance from clinicians and patients. There is a wide range of excipients available for the fabrication of tablets thereby offering a versatile platform for the delivery of therapeutic agents to the gastrointestinal tract. However, the geometry of tablets is limited by conventional manufacturing processes. This study aimed to compare three manufacturing processes in the production of flat-faced oral tablets using the same formulation composed of a polymer blend and caffeine as a model drug: fused-filament fabrication (FFF), direct compression (DC) and injection molding (IM). Hot-melt extrusion was used to convert a powder blend into feedstock material for FFF and IM processes, while DC was performed on the powder mixture. Tablets were produced with the same dimensions and were characterized for their physical and dissolution properties. There were statistical differences in the physical properties and drug release profiles of the tablets produced by the different manufacturing processes. DC tablets displayed immediate release, IM provided sustained release over 48 h, and FFF tablets displayed both release types depending on the printing parameters. FFF continues to demonstrate high potential as a manufacturing process for the efficient production of personalized oral tablets.
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Affiliation(s)
- Evert Fuenmayor
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Ireland
| | - Martin Forde
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Ireland
| | - Andrew V Healy
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Ireland
| | - Declan M Devine
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Ireland
| | - John G Lyons
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Ireland
| | - Christopher McConville
- School of Pharmacy, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, UK
| | - Ian Major
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Ireland.
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Wen H, He B, Wang H, Chen F, Li P, Cui M, Li Q, Pan W, Yang X. Structure-Based Gastro-Retentive and Controlled-Release Drug Delivery with Novel 3D Printing. AAPS PharmSciTech 2019; 20:68. [PMID: 30627938 DOI: 10.1208/s12249-018-1237-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 10/31/2018] [Indexed: 12/11/2022] Open
Abstract
In the present contribution, the aim is to explore and establish a way in which 3D printing and gastro-retentive drug delivery systems (GRDDSs) are combined (focusing on inner structure innovation) to achieve extended and stable gastro-retention and controlled-release of drug. Three digital models diverse in construction were designed and substantialized by a pressure-assisted microsyringe (PAM) 3D printer. Preparations were characterized by means of DSC, XRD, FTIR, and SEM. In vitro buoyancy study and in vivo gamma scintigraphy method were conducted to validate gastro-retention property of these innovative preparations in vitro/in vivo respectively. Release kinetic model was established and release mechanism was discussed. Tablets manufactured under certain range of parameters (intersecting angle, full filling gap) were tight and accurate in shape. Tablets printed with specific parameters (full filling gap, 50%; nozzle extrusion speed, 0.006 mm/s; layer height, 0.4 mm; compensation value, 0.25; quantity of layers, 15; outline printing value, 2) exhibited satisfactory in vitro (10-12 h)/in vivo (8-10 h) retention ability and possessed stable 10-12 h controlled-release quality. In general, 3D printing has tremendous advantage over conventional fabrication technique in intricate drug delivery systems and will be widely employed in pharmacy.
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Espinell JRH, López-Mejías V, Stelzer T. Revealing Polymorphic Phase Transformations in Polymer-Based Hot Melt Extrusion Processes. CRYSTAL GROWTH & DESIGN 2018; 18:1995-2002. [PMID: 31889927 PMCID: PMC6936767 DOI: 10.1021/acs.cgd.7b01374] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The inadvertent occurrence of polymorphic phase transformations in active pharmaceutical ingredients (APIs) during hot melt extrusion (HME) processes has been claimed to limit the application of this technique. Hence, the control of polymorphism would need to be addressed if there is any prospect of HME to be successfully implemented as an alternative solid dosage formulation strategy in integrated, continuous end-to-end pharmaceutical manufacturing settings. This work demonstrates that flufenamic acid (FFA), one of the most polymorphic APIs known, thus far, can be processed using temperature-simulated HME with polyethylene glycol (PEG) as polymeric carrier. At temperatures above the transition point of FFA forms III and I (42 °C), the induction time of the polymorphic phase transformation is longer than the average reported residence time in conventional HME processes (5 min). Moreover, it was demonstrated that thorough understanding of the thermodynamic and kinetic design space for the PEG-FFA system leads to polymorphic control in the produced crystalline solid dispersions. Ultimately, this investigation helps to gain fundamental understanding of the processing needs of crystalline solid dispersions, which will lead to the broader application of HME as a continuous manufacturing strategy for drug products containing APIs prone to polymorphism, representing about 80% of all APIs.
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Affiliation(s)
- José R. Hernández Espinell
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico 00931, United States
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
| | - Vilmalí López-Mejías
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico 00931, United States
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
| | - Torsten Stelzer
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
- Department of Pharmaceutical Sciences, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico 00936, United States
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Puri V, Brancazio D, Harinath E, Martinez AR, Desai PM, Jensen KD, Chun JH, Braatz RD, Myerson AS, Trout BL. Demonstration of pharmaceutical tablet coating process by injection molding technology. Int J Pharm 2018; 535:106-112. [DOI: 10.1016/j.ijpharm.2017.10.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 10/09/2017] [Accepted: 10/31/2017] [Indexed: 10/18/2022]
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Tablet coating by injection molding technology – Optimization of coating formulation attributes and coating process parameters. Eur J Pharm Biopharm 2018; 122:25-36. [DOI: 10.1016/j.ejpb.2017.10.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 10/06/2017] [Accepted: 10/07/2017] [Indexed: 10/18/2022]
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