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Elkanayati RM, Darwesh AY, Taha I, Wang H, Uttreja P, Vemula SK, Chambliss WG, Repka MA. Quality by design approach for fabrication of extended-release buccal films for xerostomia employing hot-melt extrusion technology. Eur J Pharm Biopharm 2024:114335. [PMID: 38768765 DOI: 10.1016/j.ejpb.2024.114335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 05/13/2024] [Accepted: 05/17/2024] [Indexed: 05/22/2024]
Abstract
The study endeavors the fabrication of extended-release adipic acid (APA) buccal films employing a quality by design (QbD) approach. The films intended for the treatment of xerostomia were developed utilizing hot-melt extrusion technology. The patient-centered quality target product profile was created, and the critical quality attributes were identified accordingly. Three early-stage formulation development trials, complemented by risk assessment aligned the formulation and process parameters with the product quality standards. Employing a D-optimal mixture design, the formulations were systematically optimized by evaluating three formulation variables: amount of the release-controlling polymer Eudragit® (E RSPO), bioadhesive agent Carbopol® (CBP 971P), and pore forming agent polyethylene glycol (PEG 1500) as independent variables, and % APA release in 1, 4 and 8 h as responses. Using design of experiment software (Design-Expert®), a total of 16 experimental runs were computed and extruded using a Thermofisher ScientificTM twin screw extruder. All films exhibited acceptable content uniformity and extended-release profiles with the potential for releasing APA for at least 8 h. Films containing 30% E RSPO, 10% CBP 971P, and 20% PEG 1500 released 88.6% APA in 8 h. Increasing the CBP concentration enhanced adhesiveness and swelling capacities while decreasing E RSPO concentration yielded films with higher mechanical strength. The release kinetics fitted well into Higuchi and Krosmeyer-Peppas models indicating a Fickian diffusion release mechanism.
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Affiliation(s)
- Rasha M Elkanayati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Alaa Y Darwesh
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Iman Taha
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Honghe Wang
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Prateek Uttreja
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Sateesh Kumar Vemula
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Walter G Chambliss
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA.
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Almutairi M, Hefnawy A, Almotairy A, Alobaida A, Alyahya M, Althobaiti A, Adel Ali Youssef A, Elkanayati RM, Ashour EA, Smyth HDC, Repka MA. Formulation and evaluation of inhaled Sildenafil-loaded PLGA microparticles for treatment of pulmonary arterial hypertension (PAH): A novel high drug loaded formulation and scalable process via hot melt extrusion technology (Part Ⅰ). Int J Pharm 2024; 655:124044. [PMID: 38527563 DOI: 10.1016/j.ijpharm.2024.124044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/08/2024] [Accepted: 03/23/2024] [Indexed: 03/27/2024]
Abstract
In recent years, several techniques were employed to develop a local sustained pulmonary delivery of sildenafil citrate (SC) as an alternative for the intravenous and oral treatment of pulmonary arterial hypertension (PAH). Most of these methods, however, need to be improved due to limitations of scalability, low yield production, low drug loading, and stability issues. In this study, we report the use of hot-melt extrusion (HME) as a scalable process for making Poly (lactic-co-glycolic acid) (PLGA) microparticles with high SC load. The prepared particles were tested in vitro for local drug delivery to the lungs by inhalation. Sodium bicarbonate was included as a porogen in the formulation to make the particles more brittle and to impart favorable aerodynamic properties. Six formulations were prepared with different formulation compositions. Laser diffraction analysis was used to estimate the geometric particle size distribution of the microparticles. In-vitro aerodynamic performance was evaluated by the next-generation cascade impactor (NGI). It was reported in terms of an emitted dose (ED), an emitted fraction (EF%), a respirable fraction (RF%), a fine particle fraction (FPF%), a mass median aerodynamic diameter (MMAD), and geometric standard deviation (GSD). The formulations have also been characterized for surface morphology, entrapment efficiency, drug load, and in-vitro drug release. The results demonstrated that PLGA microparticles have a mean geometric particle size between 6 and 14 µm, entrapment efficiency of 77 to 89 %, and SC load between 17 and 33 % w/w. Fifteen percent of entrapped sildenafil was released over 24 h from the PLGA microparticles, and seventy percent over 7 days. The aerodynamic properties included fine particle fraction ranging between 19 and 33 % and an average mass median aerodynamic diameter of 6-13 µm.
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Affiliation(s)
- Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia.
| | - Amr Hefnawy
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Avenue, Austin, TX, USA.
| | - Ahmed Almotairy
- Pharmaceutics and Pharmaceutical Industry Department, College of Pharmacy Taibah University, Al Madinah AlMunawarah 30001, Saudi Arabia.
| | - Ahmed Alobaida
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia.
| | - Mohammed Alyahya
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Abdulmajeed Althobaiti
- Department of Pharmaceutical Sciences, College of Pharmacy, Riyadh Elm University, Riyadh 11681, Saudi Arabia.
| | - Ahmed Adel Ali Youssef
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Department of Pharmaceutical Technology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.
| | - Rasha M Elkanayati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.
| | - Eman A Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.
| | - Hugh D C Smyth
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Avenue, Austin, TX, USA.
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA.
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3
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Zhang P, Li J, Ashour EA, Chung S, Wang H, Vemula SK, Repka MA. Development of multiple structured extended release tablets via hot melt extrusion and dual-nozzle fused deposition modeling 3D printing. Int J Pharm 2024; 653:123905. [PMID: 38355075 DOI: 10.1016/j.ijpharm.2024.123905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/06/2024] [Accepted: 02/11/2024] [Indexed: 02/16/2024]
Abstract
The study aims to fabricate extended release (ER) tablets using a dual-nozzle fused deposition modeling (FDM) three-dimensional (3D) printing technology based on hot melt extrusion (HME), using caffeine as the model compound. Three different ER tablets were developed, which obtained "delayed-release", "rapid-sustained release", and "release-lag-release" properties. Each type of tablet was printed with two different formulations. A novel printing method was employed in this study, which is to push the HME filament from behind with polylactic acid (PLA) to prevent sample damage by gears during the printing process. Powder X-ray diffractometry (PXRD) and differential scanning calorimetry (DSC) results showed that caffeine was predominately amorphous in the final tablets. The dissolution of 3D printed tablets was assessed using a USP-II dissolution apparatus. ER tablets containing PVA dissolved faster than those developed with Kollicoat IR. Overall, this study revealed that ER tablets were successfully manufactured through HME paired with dual-nozzle FDM 3D printing and demonstrated the power of 3D printing in developing multi-layer tablets with complex structures.
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Affiliation(s)
- Peilun Zhang
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Jinghan Li
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA
| | - Eman A Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Sooyeon Chung
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Honghe Wang
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Sateesh Kumar Vemula
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Pii Center for Pharmaceutical Technology, University of Mississippi, University, MS 38677, USA.
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Patil H, Vemula SK, Narala S, Lakkala P, Munnangi SR, Narala N, Jara MO, Williams RO, Terefe H, Repka MA. Hot-Melt Extrusion: from Theory to Application in Pharmaceutical Formulation-Where Are We Now? AAPS PharmSciTech 2024; 25:37. [PMID: 38355916 DOI: 10.1208/s12249-024-02749-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 01/19/2024] [Indexed: 02/16/2024] Open
Abstract
Hot-melt extrusion (HME) is a globally recognized, robust, effective technology that enhances the bioavailability of poorly soluble active pharmaceutical ingredients and offers an efficient continuous manufacturing process. The twin-screw extruder (TSE) offers an extremely resourceful customizable mixer that is used for continuous compounding and granulation by using different combinations of conveying elements, kneading elements (forward and reverse configuration), and distributive mixing elements. TSE is thus efficiently utilized for dry, wet, or melt granulation not only to manufacture dosage forms such as tablets, capsules, or granule-filled sachets, but also for designing novel formulations such as dry powder inhalers, drying units for granules, nanoextrusion, 3D printing, complexation, and amorphous solid dispersions. Over the past decades, combined academic and pharmaceutical industry collaborations have driven novel innovations for HME technology, which has resulted in a substantial increase in published articles and patents. This article summarizes the challenges and models for executing HME scale-up. Additionally, it covers the benefits of continuous manufacturing, process analytical technology (PAT) considerations, and regulatory requirements. In summary, this well-designed review builds upon our earlier publication, probing deeper into the potential of twin-screw extruders (TSE) for various new applications.
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Affiliation(s)
- Hemlata Patil
- Department of Product Development, Catalent Pharma Solutions, 14 Schoolhouse Road, Somerset, New Jersey, 08873, USA
| | - Sateesh Kumar Vemula
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Oxford, Mississippi, 38677, USA
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144001, India
| | - Sagar Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Oxford, Mississippi, 38677, USA
| | - Preethi Lakkala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Oxford, Mississippi, 38677, USA
| | - Siva Ram Munnangi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Oxford, Mississippi, 38677, USA
| | - Nagarjuna Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Oxford, Mississippi, 38677, USA
| | - Miguel O Jara
- Molecular Pharmaceutics and Drug Delivery Division, College of Pharmacy, The University of Texas at Austin, 2409 University Avenue, Austin, Texas, 78712, USA
| | - Robert O Williams
- Molecular Pharmaceutics and Drug Delivery Division, College of Pharmacy, The University of Texas at Austin, 2409 University Avenue, Austin, Texas, 78712, USA
| | - Hibreniguss Terefe
- Department of Product Development, Catalent Pharma Solutions, 14 Schoolhouse Road, Somerset, New Jersey, 08873, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Oxford, Mississippi, 38677, USA.
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, Oxford, Mississippi, 38677, USA.
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Feng S, Zhang Z, Almotairy A, Repka MA. Development and Evaluation of Polymeric Mixed Micelles Prepared using Hot-Melt Extrusion for Extended Delivery of Poorly Water-Soluble Drugs. J Pharm Sci 2023; 112:2869-2878. [PMID: 37327994 DOI: 10.1016/j.xphs.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 06/18/2023]
Abstract
The poor aqueous solubility is a well-recognized restriction for the clinical application of many drug molecules. Micelles delivery system provides a promising strategy for the solubility enhancement of hydrophobic drugs. This study developed and evaluated different polymeric mixed micelles prepared using hot-melt extrusion coupled hydration method to improve the solubility and extend the release of the model drug ibuprofen (IBP). The physicochemical properties of the prepared formulations were characterized in terms of particle size, polydispersity index, zeta potential, surface morphology, crystallinity, encapsulation efficiency, drug content, in vitro drug release, dilution stability, and storage stability. Soluplus®/poloxamer 407, Soluplus®/poloxamer 188, and Soluplus®/TPGS mixed micelles had average particle sizes of 86.2 ± 2.8, 89.6 ± 4.2, and 102.5 ± 3.13 nm, respectively with adequate encapsulation efficiencies of 80% to 92%. Differential scanning calorimetry studies confirmed that the IBP molecules were dissolved in the polymers in an amorphous state. The in vitro release results revealed that the IBP-loaded mixed micelles presented extended-release behavior compared to the free drug. In addition, the developed polymeric mixed micelles remained stable upon dilution and one-month storage. These results demonstrated that the hot-melt extrusion coupling hydration method could be a promising, effective, and environment-friendly manufacturing technique for the scale-up production of polymeric mixed micelles to deliver insoluble drugs.
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Affiliation(s)
- Sheng Feng
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, United States
| | - Ziru Zhang
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, United States
| | - Ahmed Almotairy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, United States; Pharmaceutics and Pharmaceutical Technology Department, College of Pharmacy, Taibah University, Al Madinah AlMunawarah, 30001, Saudi Arabia
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, United States; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, United States.
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Muhindo D, Ashour EA, Almutairi M, Repka MA. Development of Subdermal Implants Using Direct Powder Extrusion 3D Printing and Hot-Melt Extrusion Technologies. AAPS PharmSciTech 2023; 24:215. [PMID: 37857937 DOI: 10.1208/s12249-023-02669-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023] Open
Abstract
Implants are drug delivery platforms that consist of a drug-polymer matrix with the ability of providing a localized and efficient controlled release of the drug with minimal side effects and achievement of the desired therapeutic outcomes with low drug loadings. Direct powder extrusion (DPE) 3D printing technology involves the extrusion of material through a nozzle of the printer in the form of pellets or powder. The present study aimed at investigating the use of the CELLINK BIO X™ bioprinter using DPE 3D printing technique to fabricate and evaluate the impact of different shapes (cuboid, cylinder, and tube) of raloxifene hydrochloride (RFH)-loaded subdermal implants on the release of RFH from the implants. This study further evaluated the impact of different processing techniques, viz., hot-melt extrusion (HME) technology vs. DPE 3D printing technique, on the release of RFH from the implants fabricated by each processing technique. All the fabricated implants were characterized by XRD, DSC, SEM, and FTIR, and evaluated for their water uptake, mass loss, and in vitro RFH release. The current study successfully demonstrated a great opportunity of controlling and/or tuning the release of RFH from the subdermal implants by altering the implant shape, and hence surface area, and could be a great contribution and/or addition to the personalization of medicines and improvement of patient compliance.
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Affiliation(s)
- Derick Muhindo
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA
| | - Eman A Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA
- Department of Pharmaceutics, College of Pharmacy, University of Hail, 81442, Hail, Saudi Arabia
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA.
- Pii Center for Pharmaceutical Technology, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA.
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Mandati P, Nyavanandi D, Narala S, Alzahrani A, Vemula SK, Repka MA. A Comparative Assessment of Cocrystal and Amorphous Solid Dispersion Printlets Developed by Hot Melt Extrusion Paired Fused Deposition Modeling for Dissolution Enhancement and Stability of Ibuprofen. AAPS PharmSciTech 2023; 24:203. [PMID: 37783961 DOI: 10.1208/s12249-023-02666-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 09/20/2023] [Indexed: 10/04/2023] Open
Abstract
The primary focus of the research is to study the role of cocrystal and amorphous solid dispersion approaches for enhancing solubility and preserving the stability of a poorly soluble drug, i.e., ibuprofen (IBP). First, the solvent-assisted grinding approach determined the optimum molar ratio of the drug and the coformer (nicotinamide (NIC)). Later, the polymeric filaments of cocrystals and amorphous solid dispersions were developed using the hot melt extrusion (HME) process, and the printlets were fabricated using the fused deposition modeling (FDM) additive manufacturing process. In addition, the obtained filaments were also milled and compressed into tablets as reference samples. The formation of cocrystals and amorphous solid dispersions was evaluated and confirmed using differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), and powder X-ray diffraction (PXRD) analysis. The drug release profiles of 3D printlets with 50% infill were found to be faster and are in line with the release profiles of compressed tablets. In addition, the 3D-printed cocrystal formulation was stable for 6 months at accelerated conditions. However, the 3D printlets of amorphous solid dispersions and compressed tablets failed to retain stability attributed to the recrystallization of the drug and loss in tablet mechanical properties. This shows the suitability of a cocrystal platform as a novel approach for developing stable formulations of poorly soluble drug substances over amorphous solid dispersions.
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Affiliation(s)
- Preethi Mandati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA
| | - Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA
| | - Sagar Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA
| | - Abdullah Alzahrani
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA
| | - Sateesh Kumar Vemula
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA.
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, Mississippi, 38677, USA.
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Nyavanandi D, Mandati P, Narala S, Alzahrani A, Kolimi P, Vemula SK, Repka MA. Twin Screw Melt Granulation: A Single Step Approach for Developing Self-Emulsifying Drug Delivery System for Lipophilic Drugs. Pharmaceutics 2023; 15:2267. [PMID: 37765237 PMCID: PMC10534719 DOI: 10.3390/pharmaceutics15092267] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 08/26/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
The current research aims to improve the solubility of the poorly soluble drug, i.e., ibuprofen, by developing self-emulsifying drug delivery systems (SEDDS) utilizing a twin screw melt granulation (TSMG) approach. Gelucire® 44/14, Gelucire® 48/16, and Transcutol® HP were screened as suitable excipients for developing the SEDDS formulations. Initially, liquid SEDDS (L-SEDDS) were developed with oil concentrations between 20-50% w/w and surfactant to co-surfactant ratios of 2:1, 4:1, 6:1. The stable formulations of L-SEDDS were transformed into solid SEDDS (S-SEDDS) using a suitable adsorbent carrier and compressed into tablets (T-SEDDS). The S-SEDDS has improved flow, drug release profiles, and permeability compared to pure drugs. The existence of the drug in an amorphous state was confirmed by differential scanning calorimetry (DSC) and powder X-ray diffraction analysis (PXRD). The formulations with 20% w/w and 30% w/w of oil concentration and a 4:1 ratio of surfactant to co-surfactant have resulted in a stable homogeneous emulsion with a globule size of 14.67 ± 0.23 nm and 18.54 ± 0.55 nm. The compressed tablets were found stable after six months of storage at accelerated and long-term conditions. This shows the suitability of the TSMG approach as a single-step continuous manufacturing process for developing S-SEDDS formulations.
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Affiliation(s)
- Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA; (D.N.); (P.M.); (S.N.); (A.A.); (P.K.); (S.K.V.)
| | - Preethi Mandati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA; (D.N.); (P.M.); (S.N.); (A.A.); (P.K.); (S.K.V.)
| | - Sagar Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA; (D.N.); (P.M.); (S.N.); (A.A.); (P.K.); (S.K.V.)
| | - Abdullah Alzahrani
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA; (D.N.); (P.M.); (S.N.); (A.A.); (P.K.); (S.K.V.)
| | - Praveen Kolimi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA; (D.N.); (P.M.); (S.N.); (A.A.); (P.K.); (S.K.V.)
| | - Sateesh Kumar Vemula
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA; (D.N.); (P.M.); (S.N.); (A.A.); (P.K.); (S.K.V.)
| | - Michael A. Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA; (D.N.); (P.M.); (S.N.); (A.A.); (P.K.); (S.K.V.)
- Pii Center for Pharmaceutical Technology, The University of Mississippi, Oxford, MS 38677, USA
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Raman Kallakunta V, Dudhipala N, Nyavanandi D, Sarabu S, Yadav Janga K, Ajjarapu S, Bandari S, Repka MA. Formulation and processing of solid self-emulsifying drug delivery systems (HME S-SEDDS): A single-step manufacturing process via hot-melt extrusion technology through response surface methodology. Int J Pharm 2023; 641:123055. [PMID: 37207857 PMCID: PMC10429704 DOI: 10.1016/j.ijpharm.2023.123055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/17/2023] [Accepted: 05/11/2023] [Indexed: 05/21/2023]
Abstract
The objective of the current study is the formulation development and manufacturing of solid self-emulsifying drug delivery systems (HME S-SEDDS) via a single-step continuous hot-melt extrusion (HME) process. For this study, poorly soluble fenofibrate was selected as a model drug. From the results of pre-formulation studies, Compritol® HD5 ATO, Gelucire® 48/16, and Capmul® GMO-50 were selected as oil, surfactant and co-surfactant respectively for manufacturing of HME S-SEDDS. Neusilin® US2 was selected as a solid carrier. The design of experiments (response surface methodology) was employed to prepare formulations via a continuous HME process. The formulations were evaluated for emulsifying properties, crystallinity, stability, flow properties and drug release characteristics. The prepared HME S-SEDDS showed excellent flow properties, and the resultant emulsions were stable. The globule size of the optimized formulation was 269.6 nm. The DSC and XRD studies revealed the amorphous nature of the formulation and FTIR studies showed no significant interaction between fenofibrate and excipients. The drug release studies showed significant (p < 0.05) improvement in solubility compared to the pure drug (DE15 = 45.04 for the optimized formulation), as >90% of drug release was observed within 15 min. The stability studies for the optimized formulation were conducted for 3 months at 40 °C/75% RH.
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Affiliation(s)
| | - Narendar Dudhipala
- Department of Pharmaceutics and Drug Delivery, University of Mississippi 38677, USA
| | - Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, University of Mississippi 38677, USA
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, University of Mississippi 38677, USA
| | - Karthik Yadav Janga
- Department of Pharmaceutics and Drug Delivery, University of Mississippi 38677, USA
| | - Srinivas Ajjarapu
- Department of Pharmaceutics and Drug Delivery, University of Mississippi 38677, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, University of Mississippi 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, University of Mississippi 38677, USA; Pii Center for Pharmaceutical Technology, University of Mississippi 38677, USA.
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Chung S, Zhang P, Repka MA. Fabrication of timed-release indomethacin core-shell tablets for chronotherapeutic drug delivery using dual nozzle Fused Deposition Modeling (FDM) 3D printing. Eur J Pharm Biopharm 2023:S0939-6411(23)00137-6. [PMID: 37201727 DOI: 10.1016/j.ejpb.2023.05.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/02/2023] [Accepted: 05/13/2023] [Indexed: 05/20/2023]
Abstract
In the present study, timed-release indomethacin tablets, releasing drug after predetermined lag times, were developed for the effective treatment of early morning stiffness in rheumatoid arthritis using two-nozzle fused deposition modeling (FDM) 3D printing with a Bowden extruder. The developed core-shell tablets consisted of a drug-containing core and release-regulating shell with different designed thicknesses (i.e., 0.4 mm, 0.6 mm, 0.8 mm). The filaments to fabricate cores and shells were prepared using hot-melt extrusion (HME), and different filament compositions were formulated for core tablets and screened for rapid release and printability. Eventually, the HPMCAS-based formulation comprised a core tablet enclosed by a shell of Affinisol™ 15LV, a swellable polymer. During 3D printing, one nozzle was dedicated to printing core tablets loaded with indomethacin, and the other nozzle was dedicated to printing shells, making a whole structure produced at once without inconvenient filament change and nozzle cleanout. The mechanical properties of filaments were compared using a texture analyzer. The core-shell tablets were characterized for dissolution profiles and physical attributes (e.g., dimension, friability, hardness). SEM image indicated a smooth and complete surface of the core-shell tablets. The tablets showed 4-8 hours of lag depending on the shell thicknesses and released most of the drugs in 3 hours, regardless of the shell thicknesses. The core-shell tablets showed high reproducibility but exhibited low dimensional accuracy in the shell thickness. This study explored the suitability of using two-nozzle FDM 3D printing with Bowden extrusion for producing personalized chronotherapeutic core-shell tablets and discussed possible challenges that needed to be considered for a successful printing process using this technology.
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Affiliation(s)
- Sooyeon Chung
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, MS 38677, USA
| | - Peilun Zhang
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, MS 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, MS 38677, USA; Pii Center for Pharmaceutical Technology, University of Mississippi, University, MS 38677, USA.
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11
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Shukla A, Dumpa NR, Thakkar R, Shettar A, Ashour E, Bandari S, Repka MA. Influence of Poloxamer on the Dissolution and Stability of Hot-Melt Extrusion-Based Amorphous Solid Dispersions Using Design of Experiments. AAPS PharmSciTech 2023; 24:107. [PMID: 37100926 DOI: 10.1208/s12249-023-02562-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/02/2023] [Indexed: 04/28/2023] Open
Abstract
The current study aimed to see the effects of poloxamer P407 on the dissolution performance of hydroxypropyl methylcellulose acetate succinate (AquaSolve™ HPMC-AS HG)-based amorphous solid dispersions (ASD). A weakly acidic, poorly water-soluble active pharmaceutical ingredient (API), mefenamic acid (MA), was selected as a model drug. Thermal investigations, including thermogravimetry (TG) and differential scanning calorimetry (DSC), were conducted for raw materials and physical mixtures as a part of the pre-formulation studies and later to characterize the extruded filaments. The API was blended with the polymers using a twin shell V-blender for 10 min and then extruded using an 11-mm twin-screw co-rotating extruder. Scanning electron microscopy (SEM) was used to study the morphology of the extruded filaments. Furthermore, Fourier-transform infrared spectroscopy (FT-IR) was performed to check the intermolecular interactions of the components. Finally, to assess the in vitro drug release of the ASDs, dissolution testing was conducted in phosphate buffer (0.1 M, pH 7.4) and hydrochloric acid-potassium chloride (HCl-KCl) buffer (0.1 M, pH 1.2). The DSC studies confirmed the formation of the ASDs, and the drug content of the extruded filaments was observed to be within an acceptable range. Furthermore, the study concluded that the formulations containing poloxamer P407 exhibited a significant increase in dissolution performance compared to the filaments with only HPMC-AS HG (at pH 7.4). In addition, the optimized formulation, F3, was stable for over 3 months when exposed to accelerated stability studies.
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Affiliation(s)
- Ashay Shukla
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, 38677, Mississippi, USA
| | - Nagi Reddy Dumpa
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, 38677, Mississippi, USA
| | - Rishi Thakkar
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, 38677, Mississippi, USA
| | - Abhishek Shettar
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, 38677, Mississippi, USA
| | - Eman Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, 38677, Mississippi, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, 38677, Mississippi, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, 38677, Mississippi, USA.
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, 38677, Mississippi, USA.
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12
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Narala S, Komanduri N, Nyavanandi D, Youssef AAA, Mandati P, Alzahrani A, Kolimi P, Narala N, Repka MA. Hard Gelatin Capsules Containing Hot Melt Extruded Solid Crystal Suspension of Carbamazepine for improving dissolution: Preparation and In vitro Evaluation. J Drug Deliv Sci Technol 2023; 82:104384. [PMID: 37124158 PMCID: PMC10134907 DOI: 10.1016/j.jddst.2023.104384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Aqueous solubility is one of the key parameters for achieving the desired drug concentration in systemic circulation for better therapeutic outcomes. Carbamazepine (CBZ) is practically insoluble in water, is a BCS class II drug, and exhibits dissolution-dependent oral bioavailability. This study explored a novel application of hot-melt extrusion in the manufacture and development of a thermodynamically stable solid crystal suspension (SCS) to improve the solubility and dissolution rate of CBZ. The SCSs were prepared using sugar alcohols, such as mannitol or xylitol, as crystalline carriers. The drug-sugar blend was processed by hot melt extrusion up to 40 % (w/w) drug loading. The extruded SCS was evaluated for drug content, saturation solubility, differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), in vitro release, and stability studies. The physicochemical characterization revealed the highly crystalline existence of pure drug, pure carriers, and extruded SCS. FTIR analysis did not reveal any physical or chemical incompatibilities between the drug and sugar alcohols and showed a homogeneous CBZ distribution within respective crystalline carriers. The SEM micrographs of the solidified SCS revealed the presence of approximately 100 μm crystalline agglomerates. In vitro dissolution and solubility studies showed that the CBZ dissolution rate and solubility were improved significantly from both crystalline carriers for all tested drug loads. The SCSs showed no significant changes in drug content, in vitro release profiles, and thermal characteristics over 3 months of storage at accelerated stability conditions (40±2°C/75±5% RH). As a result, it can be inferred that the SCS strategy can be employed as a contemporary alternative technique to improve the dissolution rate of BCS class II drugs via HME technology.
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Affiliation(s)
- Sagar Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Neeraja Komanduri
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Ahmed Adel Ali Youssef
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Preethi Mandati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Abdullah Alzahrani
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Praveen Kolimi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Nagarjuna Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Michael A. Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA
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13
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Almotairy A, Alyahya M, Althobaiti A, Almutairi M, Bandari S, Ashour EA, Repka MA. Disulfiram 3D printed film produced via hot-melt extrusion techniques as a potential anticervical cancer candidate. Int J Pharm 2023; 635:122709. [PMID: 36801364 PMCID: PMC10023499 DOI: 10.1016/j.ijpharm.2023.122709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/26/2023] [Accepted: 02/05/2023] [Indexed: 02/18/2023]
Abstract
Cervical cancer is known globally as one of the most common health problems in women. Indeed, one of the most convenient approaches for its treatment is an appropriate bioadhesive vaginal film. This approach provides a local treatment modality, which inevitably decreases dosing frequency and improves patient compliance. Recently, disulfiram (DSF) has been investigated and demonstrated to possess anticervical cancer activity; therefore, it is employed in this work. The current study aimed to produce a novel, personalized three-dimensional (3D) printed DSF extended-release film using the hot-melt extrusion (HME) and 3D printing technologies. The optimization of the formulation composition and the HME and 3D printing processing temperatures was an important factor for overcoming the DSF heat-sensitivity issue. In addition, the 3D printing speed was specifically the most crucial parameter for alleviating heat-sensitivity concerns, which led to the production of films (F1 and F2) with an acceptable DSF content and good mechanical properties. The bioadhesion film study using sheep cervical tissue indicated a reasonable adhesive peak force (N) of 0.24 ± 0.08 for F1 and 0.40 ± 0.09 for F2, while the work of adhesion (N.mm) for F1 and F2 was 0.28 ± 0.14 and 0.54 ± 0.14, respectively. Moreover, the cumulative in vitro release data indicated that the printed films released DSF for up to 24 h. HME-coupled 3D printing successfully produced a patient-centric and personalized DSF extended-release vaginal film with a reduced dose and longer dosing interval.
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Affiliation(s)
- Ahmed Almotairy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Pharmaceutics and Pharmaceutical Technology Department, College of Pharmacy Taibah University, Al Madinah AlMunawarah 30001, Saudi Arabia
| | - Mohammed Alyahya
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdulmajeed Althobaiti
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Eman A Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA.
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14
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Muhindo D, Elkanayati R, Srinivasan P, Repka MA, Ashour EA. Correction to: Recent Advances in the Applications of Additive Manufacturing (3D Printing) in Drug Delivery: a Comprehensive Review. AAPS PharmSciTech 2023; 24:75. [PMID: 36899287 DOI: 10.1208/s12249-023-02542-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023] Open
Affiliation(s)
- Derick Muhindo
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Rasha Elkanayati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Priyanka Srinivasan
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA.,Pii Center for Pharmaceutical Technology, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Eman A Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA.
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15
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Muhindo D, Elkanayati R, Srinivasan P, Repka MA, Ashour EA. Recent Advances in the Applications of Additive Manufacturing (3D Printing) in Drug Delivery: A Comprehensive Review. AAPS PharmSciTech 2023; 24:57. [PMID: 36759435 DOI: 10.1208/s12249-023-02524-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/26/2023] [Indexed: 02/11/2023] Open
Abstract
There has been a tremendous increase in the investigations of three-dimensional (3D) printing for biomedical and pharmaceutical applications, and drug delivery in particular, ever since the US FDA approved the first 3D printed medicine, SPRITAM® (levetiracetam) in 2015. Three-dimensional printing, also known as additive manufacturing, involves various manufacturing techniques like fused-deposition modeling, 3D inkjet, stereolithography, direct powder extrusion, and selective laser sintering, among other 3D printing techniques, which are based on the digitally controlled layer-by-layer deposition of materials to form various geometries of printlets. In contrast to conventional manufacturing methods, 3D printing technologies provide the unique and important opportunity for the fabrication of personalized dosage forms, which is an important aspect in addressing diverse patient medical needs. There is however the need to speed up the use of 3D printing in the biopharmaceutical industry and clinical settings, and this can be made possible through the integration of modern technologies like artificial intelligence, machine learning, and Internet of Things, into additive manufacturing. This will lead to less human involvement and expertise, independent, streamlined, and intelligent production of personalized medicines. Four-dimensional (4D) printing is another important additive manufacturing technique similar to 3D printing, but adds a 4th dimension defined as time, to the printing. This paper aims to give a detailed review of the applications and principles of operation of various 3D printing technologies in drug delivery, and the materials used in 3D printing, and highlight the challenges and opportunities of additive manufacturing, while introducing the concept of 4D printing and its pharmaceutical applications.
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Affiliation(s)
- Derick Muhindo
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Rasha Elkanayati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Priyanka Srinivasan
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA.,Pii Center for Pharmaceutical Technology, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Eman A Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, 38677, USA.
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16
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Althobaiti AA, Ashour EA, Almotairy A, Almutairi M, AlYahya M, Repka MA. Development and Characterization of Different Dosage Forms of Nifedipine/Indomethacin Fixed-Dose Combinations. J Drug Deliv Sci Technol 2023; 80:104117. [PMID: 36741268 PMCID: PMC9897319 DOI: 10.1016/j.jddst.2022.104117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Studies have shown that 40 individuals out of 100,000 are diagnosed with rheumatoid arthritis (RA) yearly, with a total of 1.3 million in the United States. Furthermore, the impact of RA in some cases can extend to cardiovascular diseases (CVD), as the studies showed that 84% of RA patients are at risk of developing hypertension. This study aims to design and develop different dosage forms (capsule-in-capsule and three-dimensional (3D) printed tablet) of nifedipine/indomethacin fixed-dose combination (FDC). The hot-melt extrusion (HME) was utilized alone and with fused deposition modeling (FDM) techniques The developed dosage forms were intended to provide delayed-extended and immediate release profiles for indomethacin and nifedipine, respectively. FDC dosage forms were successfully developed and characterized. Nifedipine formulations showed significant improvement in release profiles, having 94% of the drug release at 30 minutes compared with pure nifedipine, which had a percent release of 2%. Furthermore, the release of indomethacin was successfully delayed at a pH of 1.2 and extended at a pH of 6.8. Differential scanning calorimetry results showed endothermic crystalline peaks at 165 °C and 176 °C for indomethacin and nifedipine, respectively. Moreover, the thermal analysis of all formulations showed the absence of the endothermic peaks indicating complete solubilization of indomethacin and nifedipine in the polymeric carriers. All formulations had post-processing drug content in the range of 95% to 98%. Moreover, results from the stability study showed that all formulations were able to remain chemically and physically stable with no signs of recrystallization or degradation. The designed FDC dosage forms could improve the quality of life by enhancing patient compliance and preventing the need for polypharmacy.
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Affiliation(s)
- Abdulmajeed A. Althobaiti
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, School of Pharmacy, MS 38677
| | - Eman A. Ashour
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, School of Pharmacy, MS 38677
| | - Ahmed Almotairy
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, School of Pharmacy, MS 38677
- Pharmaceutics and Pharmaceutical Technology Department, College of Pharmacy Taibah University, Al Madinah AlMunawarah, 30001, Saudi Arabia
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, School of Pharmacy, MS 38677
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail, 81442, Saudi Arabia
| | - Mohammed AlYahya
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, School of Pharmacy, MS 38677
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Michael A. Repka
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, School of Pharmacy, MS 38677
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677
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17
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Nyavanandi D, Narala S, Mandati P, Alzahrani A, Kolimi P, Almotairy A, Repka MA. Twin Screw Melt Granulation: Alternative Approach for Improving Solubility and Permeability of a Non-steroidal Anti-inflammatory Drug Ibuprofen. AAPS PharmSciTech 2023; 24:47. [PMID: 36703024 DOI: 10.1208/s12249-023-02512-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/11/2023] [Indexed: 01/27/2023] Open
Abstract
The current research is focused on investigating the suitability of the twin screw melt granulation (TSMG) approach for improving the solubility of a non-steroidal anti-inflammatory (NSAIDs) drug (ibuprofen), by developing granules using lipid surfactants. The solubility of the drug within the solid lipid excipients (Gelucire® 48/16 and Gelucire® 50/13) was determined by differential scanning calorimetry (DSC). The formulations were developed for drug and lipid ratios of 1:1.5, 1:3, and 1:4.5 using Neusilin® US2 as a solid adsorbent carrier. The solid-state properties of the drug investigated using differential scanning calorimetry (DSC) have revealed the conversion of the drug to an amorphous form for 1:3 and 1:4.5 ratios of formulations confirmed by powder x-ray diffraction analysis (PXRD). Drug-excipient compatibility and formation of no interactions were characterized using Fourier transform infrared spectroscopy (FTIR). The granules with a 1:3 and 1:4.5 ratios of drug and lipid have improved drug dissolution and permeation, attributing to the formation of micellar emulsions. The stability of formulation with a 1:3 ratio of drug and lipid surfactant was preserved when stored in accelerated conditions. However, the formulation with a 1:4.5 ratio of drug and lipid failed to retain the amorphous state evidenced by the recrystallization of the drug. This shows the suitability of TSMG as a single-step continuous manufacturing process for developing melt granules to improve the solubility of poorly water-soluble drug substances.
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Affiliation(s)
- Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Jackson, MS, 38677, USA
| | - Sagar Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Jackson, MS, 38677, USA
| | - Preethi Mandati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Jackson, MS, 38677, USA
| | - Abdullah Alzahrani
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Jackson, MS, 38677, USA
| | - Praveen Kolimi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Jackson, MS, 38677, USA
| | - Ahmed Almotairy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Jackson, MS, 38677, USA.,Pharmaceutics and Pharmaceutical Technology Department, College of Pharmacy, Taibah University, AlMunawarah, Al Madinah, 30001, Saudi Arabia
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Jackson, MS, 38677, USA. .,Pii Center for Pharmaceutical Technology, The University of Mississippi, University, Jackson, MS, 38677, USA.
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18
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Alzahrani A, Youssef AAA, Nyavanandi D, Tripathi S, Bandari S, Majumdar S, Repka MA. Design and optimization of ciprofloxacin hydrochloride biodegradable 3D printed ocular inserts: Full factorial design and in-vitro and ex-vivo evaluations: Part II. Int J Pharm 2023; 631:122533. [PMID: 36566827 PMCID: PMC9851809 DOI: 10.1016/j.ijpharm.2022.122533] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 12/14/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Coupling hot-melt extrusion (HME) with fused deposition modeling three-dimensional printing (FDM-3DP) can facilitate the fabrication of tailored, patient-centered, and complex-shaped ocular dosage forms. We fabricated ciprofloxacin HCl ocular inserts by coupling high-throughput, solvent-free, and continuous HME with FDM-3DP. Insert fabrication utilized biocompatible, biodegradable, bioadhesive Klucel™ hydroxypropyl cellulose polymer, subjected to distinct FDM-3DP processing parameters, utilizing a design of experiment approach to achieve a tailored release profile. We determined the drug content, thermal properties, drug-excipient compatibility, surface morphology, in vitro release, antibacterial activity, ex-vivo transcorneal permeation, and stability of inserts. An inverse relationship was noted between insert thickness, infill density, and drug release rate. The optimized design demonstrated an amorphous solid dispersion with an extended-release profile over 24 h, no physical or chemical incompatibility, excellent mucoadhesive strength, smooth surface, lack of bacterial growth (Pseudomonas aeruginosa) in all release samples, and prolonged transcorneal drug flux compared with commercial eye drops and immediate-release inserts. The designed inserts were stable at room temperature considering drug content, thermal behavior, and release profile over three months. Overall, the fabricated insert could reduce administration frequency to once-daily dosing, affording a promising topical delivery platform with prolonged antibacterial activity and superior therapeutic outcomes for managing ocular bacterial infections.
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Affiliation(s)
- Abdullah Alzahrani
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA,Department of Pharmacy, East Jeddah Hospital, Ministry of Health, Jeddah 22253, Saudi Arabia
| | - Ahmed Adel Ali Youssef
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA,Department of Pharmaceutical Technology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA
| | - Siddharth Tripathi
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS, USA,Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA
| | - Soumyajit Majumdar
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA,Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA
| | - Michael A. Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA,Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA,Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA,Correspondence: Dr. Michael A. Repka, Chair & Distinguished Professor, Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA. Tel.: +1 (662) 915-1155; fax: +1 (662) 915-1177.
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19
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Alzahrani A, Adel Ali Youssef A, Senapati S, Tripathi S, Bandari S, Majumdar S, Repka MA. Formulation development and in Vitro-Ex vivo characterization of hot-melt extruded ciprofloxacin hydrochloride inserts for ocular applications: Part I. Int J Pharm 2023; 630:122423. [PMID: 36427695 PMCID: PMC9851808 DOI: 10.1016/j.ijpharm.2022.122423] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 11/02/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022]
Abstract
This study developed, optimized, characterized, and evaluated bioadhesive, hot-melt extruded (HME), extended-release ocular inserts containing ciprofloxacin hydrochloride (CIP-HCL) to improve the therapeutic outcomes of ocular bacterial infections. The inserts were fabricated with FDA-approved biocompatible, biodegradable, and bioadhesive polymers that were tuned in different ratios to achieve a sustained release profile. The results revealed an inverse relationship between the Klucel™ hydroxypropyl cellulose (HPC, 140,000 Da) concentration and drug release and extended-release profile over 24 h. The CIP-HCL-HME inserts presented stable drug content, thermal behavior, surface pH, and release profiles over three months of room-temperature storage and demonstrated adequate mucoadhesive strength. SEM micrographs revealed a smooth surface. Bacterial growth was not observed on the samples during the in vitro release experiment (0.5-24 h), indicating that a minimum inhibitory concentration (MIC) of 90 against Pseudomonas aeruginosa was achieved. Ex vivo transcorneal permeation studies using excised rabbit corneas revealed that the prepared ocular inserts prolonged the transcorneal flux of the drug compared to commercial eye drops and immediate-release inserts and could reduce the administration frequency to once daily. Therefore, the inserts could increase patient compliance and exhibited prolonged antibacterial activity and thus could provide better therapeutic outcomes against ocular bacterial infections.
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Affiliation(s)
- Abdullah Alzahrani
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Department of Pharmacy, East Jeddah Hospital, Ministry of Health, Jeddah 22253, Saudi Arabia
| | - Ahmed Adel Ali Youssef
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Department of Pharmaceutical Technology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Samir Senapati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Siddharth Tripathi
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS, USA; Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Soumyajit Majumdar
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA.
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Almotairy A, Almutairi M, Althobaiti A, Alyahya M, Sarabu S, Zhang F, Bandari S, Ashour E, Repka MA. Investigation of hot melt extrusion process parameters on solubility and tabletability of atorvastatin calcium in presence of Neusilin ® US2. J Drug Deliv Sci Technol 2023; 79:104075. [PMID: 37811318 PMCID: PMC10557465 DOI: 10.1016/j.jddst.2022.104075] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Reports in the literature indicate that hot-melt extrusion (HME) processing techniques could alter the mechanical properties of the pharmaceutical physical blend, which may alter successful processing during tableting. The aim of this study was to evaluate whether HME processing conditions have an impact on the tabletability of Atorvastatin calcium trihydrate (ATR) in the presence of Neusilin® US2 (NUS2). ATR drug load of 25% was mixed with 75% of NUS2 and extruded using two screw configurations, screw speeds, and feed rates. Solid-state thermal analysis showed that ATR transformed to an amorphous form which led to improved solubility. ATR tabletability was affected positively by screw configuration that had no shearing and mixing force. SEM analysis indicated that a conveying screw configuration preserved the spherical nature of NUS2, thus improving ATR tabletability. This novel study demonstrates the significance of changing and monitoring the HME process parameters, which impact the materials' mechanical properties and may prevent adverse outcomes during tableting.
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Affiliation(s)
- Ahmed Almotairy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Pharmaceutics and Pharmaceutical Technology Department, College of Pharmacy Taibah University, Al Madinah AlMunawarah 30001, Saudi Arabia
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail, 81442, Saudi Arabia
| | - Abdulmajeed Althobaiti
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Mohammed Alyahya
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Feng Zhang
- College of Pharmacy, The University of Texas at Austin, TX, 78712, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Eman Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Michael A. Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA
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Almotairy A, Almutairi M, Althobaiti A, Alyahya M, Sarabu S, Zhang F, Bandari S, Ashour E, Repka MA. Corrigendum to “Investigation of hot melt extrusion process parameters on solubility and tabletability of atorvastatin calcium in presence of Neusilin® US2” [J. Drug Deliv. Sci. Technol. 79 (January 2023) 104075]. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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22
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Mandati P, Dumpa N, Alzahrani A, Nyavanandi D, Narala S, Wang H, Bandari S, Repka MA, Tiwari S, Langley N. Hot-Melt Extrusion-Based Fused Deposition Modeling 3D Printing of Atorvastatin Calcium Tablets: Impact of Shape and Infill Density on Printability and Performance. AAPS PharmSciTech 2022; 24:13. [PMID: 36477554 DOI: 10.1208/s12249-022-02470-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022] Open
Abstract
The main objective of the current research was to investigate the effect of tablet shapes (heart-shaped and round tablets) and infill densities (50% and 100%) on the drug release profiles of 3D printed tablets prepared by hot-melt extrusion paired with fused deposition modeling techniques. Drug-loaded filaments of 1.5 mm and 2.5 mm diameters were extruded using a Process 11 mm hot-melt extruder employing atorvastatin calcium as a model drug and Kollicoat® IR, Kollidon® VA64, Kollidon® 12PF, and Kolliphor® P407 as hydrophilic polymers. Filaments of Kollicoat® IR in combination with Kollidon® VA64/Kollidon® 12PF has resulted in successful printing of immediate release tablets. The mechanical properties of drug-loaded filaments were evaluated using a 3-point bend test and stiffness test. The transformation of a crystalline drug to an amorphous form and the absence of drug-polymer interactions were confirmed by differential scanning calorimetry and Fourier transform infrared spectroscopy, respectively. The effect of infill density on drug release profiles was greater than that of tablet shape. The stability of 3D printed tablets was preserved even after storage under accelerated conditions (40 ± 2°C and 75 ± 5% RH) for 6 months. Thus, the 3D printing process of hot-melt extrusion paired with fused deposition modeling serves as an alternative manufacturing approach for developing patient-focused doses.
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Affiliation(s)
- Preethi Mandati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Mississippi, 38677, University, USA
| | - Nagireddy Dumpa
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Mississippi, 38677, University, USA
| | - Abdullah Alzahrani
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Mississippi, 38677, University, USA
| | - Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Mississippi, 38677, University, USA
| | - Sagar Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Mississippi, 38677, University, USA
| | - Honghe Wang
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Mississippi, 38677, University, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Mississippi, 38677, University, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, Mississippi, 38677, University, USA. .,Pii Center for Pharmaceutical Technology, The University of Mississippi, Mississippi, 38677, University, USA.
| | - Sandip Tiwari
- BASF Corporation, 500 White Plains Road, New York, Tarrytown, USA
| | - Nigel Langley
- BASF Corporation, 500 White Plains Road, New York, Tarrytown, USA
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Nyavanandi D, Mandati P, Narala S, Alzahrani A, Kolimi P, Pradhan A, Bandari S, Repka MA. Feasibility of high melting point hydrochlorothiazide processing via cocrystal formation by hot melt extrusion paired fused filament fabrication as a 3D-printed cocrystal tablet. Int J Pharm 2022; 628:122283. [DOI: 10.1016/j.ijpharm.2022.122283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/03/2022] [Accepted: 10/07/2022] [Indexed: 10/31/2022]
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Almutairi M, Srinivasan P, Zhang P, Austin F, Butreddy A, Alharbi M, Bandari S, Ashour EA, Repka MA. Hot-Melt Extrusion Coupled with Pressurized Carbon Dioxide for Enhanced Processability of Pharmaceutical Polymers and Drug Delivery Applications – An Integrated Review. Int J Pharm 2022; 629:122291. [DOI: 10.1016/j.ijpharm.2022.122291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/28/2022] [Accepted: 10/09/2022] [Indexed: 11/07/2022]
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Chung S, Srinivasan P, Zhang P, Bandari S, Repka MA. Development of ibuprofen tablet with polyethylene oxide using fused deposition modeling 3D-printing coupled with hot-melt extrusion. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kolimi P, Youssef AAA, Narala S, Nyavanandi D, Dudhipala N, Bandari S, Repka MA. Development and characterization of itraconazole non-aqueous creams for the treatment of topical fungal infections. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Althobaiti AA, Ashour EA, Almutairi M, Almotairy A, Al Yahya M, Repka MA. Formulation development of curcumin-piperine solid dispersion via hot-melt extrusion. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Feng S, Bandari S, Repka MA. Investigation of poly(2-ethyl-2-oxazoline) as a novel extended release polymer for hot-melt extrusion paired with fused deposition modeling 3D printing. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Zhang P, Xu P, Chung S, Bandari S, Repka MA. Fabrication of bilayer tablets using hot melt extrusion-based dual-nozzle fused deposition modeling 3D printing. Int J Pharm 2022; 624:121972. [PMID: 35787460 DOI: 10.1016/j.ijpharm.2022.121972] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/15/2022] [Accepted: 06/29/2022] [Indexed: 12/21/2022]
Abstract
The objective of this study was to fabricate bilayer tablets using hot-melt extrusion (HME)-based dual-nozzle fused deposition modeling (FDM) three-dimensional (3D) printing techniques. Acetaminophen (APAP) and caffeine citrate (CC) were used as the model drugs. Five bilayer tablets with different formulations were developed and two different structures were printed for each formulation. Three-point bending, Hooke's law, and resistance and stiffness tests were conducted to determine the mechanical properties of the filaments. A novel method, 3D printed tablet retention rate, was developed and used for the first time to compare the printing quality of different filaments. The 3D printed tablets were evaluated to derive the drug release rates using a USP-II dissolution apparatus. HPMC HME 15LV and HPMCAS-LG were identified as good printing materials; however, HPMC HME 100LV was not suitable for printing under frequent nozzle switching conditions. Although mechanical characterization tests can be used to determine whether filaments can be printed, they cannot specifically distinguish the quality of printing between the filaments. Overall, this study revealed the successful fabrication of bilayer tablets via HME paired with dual-nozzle FDM 3D printing.
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Affiliation(s)
- Peilun Zhang
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677
| | - Pengchong Xu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677
| | - Sooyeon Chung
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677; Pii Center for Pharmaceutical Technology, University of Mississippi, University, MS 38677, USA.
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Maurya A, Bae J, Kenchappa V, Shivakumar HN, Maibach H, Repka MA, Murthy SN. Convective Solvent Transport Pathways for Absorption of Drugs from Topical Formulation. AAPS PharmSciTech 2022; 23:178. [PMID: 35761149 DOI: 10.1208/s12249-022-02320-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 06/07/2022] [Indexed: 11/30/2022] Open
Abstract
Physicochemical and formulation factors influencing penetration of drugs from topical products into the skin and mechanisms of drug permeation are well investigated and reported in the literature. However, mechanisms of drug absorption during short-term exposure have not been given sufficient importance. In this project, the extent of absorption of drug molecules into the skin from aqueous and ethanolic solutions following a 5-min application period was investigated. The experiments demonstrated measurable magnitude of absorption into the skin for all the molecules tested despite the duration of exposure being only few minutes. Among the two solvents used, absorption was greater from aqueous than ethanolic solution. The results suggest that an alternative penetration pathway, herein referred to as the convective transport pathway, is likely responsible for the rapid, significant uptake of drug molecules during initial few minutes of exposure. Additionally, absorption through the convective transport pathways is a function of the physicochemical nature of the formulation vehicle rather than the API.
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Affiliation(s)
- Abhijeet Maurya
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, Mississipi, 38677, USA
| | - Jungeun Bae
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, Mississipi, 38677, USA
| | - Vanaja Kenchappa
- Institute for Drug Delivery and Biomedical Research (IDBR), Bangalore, India
| | - H N Shivakumar
- Institute for Drug Delivery and Biomedical Research (IDBR), Bangalore, India.,Department of Pharmaceutics, K.L.E.S' College of Pharmacy, Bangalore, India
| | - Howard Maibach
- University of California, San Francisco, California, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, Mississipi, 38677, USA
| | - S Narasimha Murthy
- Topical Products Testing LLC, 9 Industrial Park Drive, Oxford, Mississipi, 38655, USA. .,Institute for Drug Delivery and Biomedical Research (IDBR), Bangalore, India.
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Hu Z, Xu P, Ashour EA, Repka MA. Prediction and Construction of Drug-Polymer Binary System Thermodynamic Phase Diagram in Amorphous Solid Dispersions (ASDs). AAPS PharmSciTech 2022; 23:169. [PMID: 35715519 DOI: 10.1208/s12249-022-02319-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/07/2022] [Indexed: 11/30/2022] Open
Abstract
Amorphous solid dispersion (ASD) has been well known as a potential strategy to improve the bioavailability and dissolution performance of poorly water-soluble drugs. The primary concern of this approach is the long-term stability of the amorphous drug in the solid dispersion. Accurate prediction and detection of the solubility and miscibility of drug in polymeric binary system will be a milestone to the development of ASDs. In this investigation, a method based on Flory-Huggins (F-H) theory was proposed to predict and calculate the solubility and miscibility of the drug in polymeric matrix and construct the phase diagram to identify the relevance between drug loading and temperature for ASDs development. Indomethacin (Indo) was chosen as the model drug, and polyvinyl pyrrolidone vinyl acetate (Kollidon® VA 64) was used as a polymeric carrier for the ASD systems. Physical mixtures were prepared with different drug loadings (10 to 90%) and analyzed by differential scanning calorimetry (DSC). The interaction parameter χ was calculated for physical mixtures by the melting point depression and solubility parameter contribution methods. The phase diagram was constructed to investigate the impact of other parameters like drug loading, processing temperature, and Gibbs free energy of mixing (ΔGmix). For further validation, formulations were developed using HME to verify the accuracy of the phase diagram and to guide in the hot-melt extrusion (HME) process design space and optimization.
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Affiliation(s)
- Zhiqing Hu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA
| | - Pengchong Xu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA
| | - Eman A Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA. .,Pii Center for Pharmaceutical Technology, University of Mississippi, University, MS, 38677, USA.
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Omari S, Ashour EA, Elkanayati R, Alyahya M, Almutairi M, Repka MA. Formulation development of loratadine immediate- release tablets using hot-melt extrusion and 3D printing technology. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Muhindo D, Ashour EA, Almutairi M, Repka MA. Development and evaluation of raloxifene hydrochloride-loaded subdermal implants using hot-melt extrusion technology. Int J Pharm 2022; 622:121834. [PMID: 35597391 DOI: 10.1016/j.ijpharm.2022.121834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/10/2022] [Accepted: 05/13/2022] [Indexed: 01/15/2023]
Abstract
Implantable drug delivery systems are known to provide great patient compliance and allow for controlled delivery of drugs over a prolonged period of time. This study aimed to prepare novel polycaprolactone/polyethylene glycol-based raloxifene hydrochloride subdermal solid cylindrical implants using a single-step hot-melt extrusion (HME) continuous process, for the provision of a sustained and prolonged release of RX-HCl as a cornerstone and alternative treatment and prevention option of osteoporosis, most especially post-menopausal osteoporosis, and invasive breast cancer, while providing better clinical outcomes by circumventing clinical and biopharmaceutical hurdles like first-pass metabolism and patient non-adherence and incompliance associated with the oral dosage forms of raloxifene hydrochloride. The 11-mm co-rotating twin-screw extruder was used to prepare the implants. The prepared cylindrical-shaped solid implants with dimensions of 10 mm (length) by 2 mm (diameter) were characterized by DSC, PXRD, FTIR, SEM, and in vitro dissolution analysis. Based on the physicochemical characterization of the prepared implants, the HME fabrication technology and optimized process parameters were determined to be acceptable and suitable. The prepared implants showed no obvious burst release and no significant amounts of drug on the surface of the implants. F-1, F-2, and F-3 implant batches showed a maximum cumulative percent drug release of 82.9 %, 42.2 %, and 20.6 %, respectively, in a period of 30 days, and 100 % drug release would be expected in a period of about 40 days (F-1), 72 days (F-2), and up to 150 days (F-3) by simple extrapolation. Interestingly, implant batches with a low drug load exhibited a relatively faster and higher rate of release of the drug compared to implant batches with high drug loading. In the present study, a single-step HME process was successfully used to fabricate RX-HCl-loaded subdermal implants, that could potentially be used as a cornerstone regimen in the treatment and prevention of osteoporosis, most especially post-menopausal osteoporosis, by providing release of RX-HCl over a long time period, and avoiding the clinical inconveniences and possible patient incompliance caused by daily administration of the drug.
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Affiliation(s)
- Derick Muhindo
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, United States
| | - Eman A Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, United States
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, United States; Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, United States; Pii Center for Pharmaceutical Technology, School of Pharmacy, University of Mississippi, University, MS 38677, United States.
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Hu Z, Xu P, Zhang J, Bandari S, Repka MA. Development of controlled release oral dosages by density gradient modification via three-dimensional (3D) printing and hot-melt extrusion (HME) technology. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Sarabu S, Butreddy A, Bandari S, Batra A, Lawal K, Chen NN, Kogan M, Bi V, Durig T, Repka MA. Preliminary investigation of peroxide levels of Plasdone™ copovidones on the purity of atorvastatin calcium amorphous solid dispersions: Impact of plasticizers on hot melt extrusion processability. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Butreddy A, Sarabu S, Almutairi M, Ajjarapu S, Kolimi P, Bandari S, Repka MA. Hot-melt extruded hydroxypropyl methylcellulose acetate succinate based amorphous solid dispersions: Impact of polymeric combinations on supersaturation kinetics and dissolution performance. Int J Pharm 2022; 615:121471. [PMID: 35041915 PMCID: PMC9040200 DOI: 10.1016/j.ijpharm.2022.121471] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/20/2021] [Accepted: 01/10/2022] [Indexed: 01/23/2023]
Abstract
Nucleation inhibition and maintenance of drug supersaturation over a prolonged period are desirable for improving oral absorption of amorphous solid dispersions. The present study investigates the impact of binary and ternary amorphous solid dispersions on the supersaturation kinetics of nifedipine using the polymers hydroxypropylmethylcellulose acetate succinate (HPMCAS) LG, and HG, Eudragit® RSPO, Eudragit® FS100, Kollidon® VA64 and Plasdone™ K-29/32. The amorphous solubility, nucleation induction time, and particle size analysis of nifedipine in a supersaturated solution were performed with and without the presence of polymers, alone or in combination. The HPMCAS-HG and HPMCAS-HG + LG combinations showed the highest nifedipine amorphous solubility of 169.47, 149.151 µg/mL, respectively and delay in nucleation induction time up to 120 min compared to other polymeric combinations. The solid dispersions prepared via hot melt extrusion showed the transformation of crystalline nifedipine to amorphous form. The in-vitro non-sink dissolution study revealed that although the binary nifedipine/HPMCAS-LG system had shown the greater supersaturation concentration of 66.1 µg/mL but could not maintain a supersaturation level up to 360 min. A synergistic effect emerged for ternary nifedipine/HPMCAS-LG/HPMCAS-HG, and nifedipine/HPMCAS-LG/Eudragit®FS100 systems maintained the supersaturation level with enhanced dissolution performance, demonstrating the potential of polymeric combinations for improved amorphous solid dispersion performance.
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Affiliation(s)
- Arun Butreddy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia.
| | - Srinivas Ajjarapu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.
| | - Praveen Kolimi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA.
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Panda A, Sharma PK, McCann T, Bloomekatz J, Repka MA, Murthy SN. Fabrication and development of controlled release PLGA microneedles for macromolecular delivery using FITC-Dextran as model molecule. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.102712] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kolimi P, Shankar VK, Shettar A, Rangappa S, Repka MA, Murthy SN. Development and Validation of HPLC Method for Efinaconazole: Application to Human Nail Permeation Studies. AAPS PharmSciTech 2022; 23:63. [PMID: 35091878 DOI: 10.1208/s12249-021-02196-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/14/2021] [Indexed: 11/30/2022] Open
Abstract
Efinaconazole is the first azole derivative approved by FDA for the topical treatment of onychomycosis. The objective of present study was to develop and validate HPLC method for estimation of efinaconazole in ex vivo human nail permeation study samples. The chromatographic analysis was performed on a HPLC system equipped with diode array detector. The efinaconazole and internal standard (IS) were extracted from the human nail samples by using the protein precipitation method. The samples were injected on to 5 μm Polar C18 100Å, 4.6 mm × 150 mm column. The mobile phase consisted of 0.01 M potassium dihydrogen phosphate: acetonitrile (36:64) and eluent was monitored at 205 nm. The chromatographic separation of drug and analyte was achieved using isocratic elution at flow rate of 1 mL/min with a total run time of 15 min. The efinaconazole and IS were eluted at 6.4 ± 0.5 and 8.3 ± 0.5 min, respectively. The developed method was validated as per FDA guidelines, and the results met with acceptance criteria. The method developed was specific, and the analyte concentrations were linear at range of 50 to 10000 ng/mL (R2 ≥ 0.9981). The validated HPLC method was applied for quantifying efinaconazole in human nail permeation study samples. The permeation of efinaconazole was increased by twofolds with Labarfac CC (15135.4 ± 2233.9 ng/cm2) compared to formulations containing Transcutol P (6892.0 ± 557.6 ng/cm2) and Labrasol (7266.1 ± 790.6 ng/cm2). The study results demonstrate that developed efinaconazole HPLC method can be employed for formulation evaluation and clinical studies.
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Narala S, Nyavanandi D, Alzahrani A, Bandari S, Zhang F, Repka MA. Creation of Hydrochlorothiazide Pharmaceutical Cocrystals Via Hot-Melt Extrusion for Enhanced Solubility and Permeability. AAPS PharmSciTech 2022; 23:56. [PMID: 35043282 DOI: 10.1208/s12249-021-02202-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 12/16/2021] [Indexed: 01/30/2023] Open
Abstract
Crystal engineering is an emerging tool for altering the physicochemical properties of drug candidates. The objective of the current investigation was to develop cocrystals of hydrochlorothiazide (HCT) with coformers such as nicotinamide (NIC), resorcinol (RSL), and catechol (CAT) using hot-melt extrusion (HME) technology. The liquid-assisted grinding (LAG) method was used to prepare cocrystals by grinding the drug and coformer in a definite molar ratio as a reference and to check the feasibility of cocrystal formation. Cocrystals were prepared using HME and evaluated with differential scanning calorimetry, Fourier transform infrared spectroscopy, X-ray diffractometry, and scanning electron microscopy and compared with LAG cocrystals. Barrel temperature was the critical process parameter for producing high-quality cocrystals in HME. All cocrystals exhibited improved solubility compared to the native drug, and HCT-NIC cocrystals showed a two-fold increase in solubility. Similarly, HCT-RSL and HCT-CAT showed higher solubility profiles and improved diffusion/permeability characteristics compared to that of the pure HCT due to the drug-coformer interactions in the cocrystals. In this study, the solubility of the coformer was the key factor determining cocrystal solubilization. However, hot-melt extrusion is an alternative technology for creating pharmaceutical cocrystals and has potential for industrial scale-up.
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Almotairy A, Almutairi M, Althobaiti A, Alyahya M, Sarabu S, Alzahrani A, Zhang F, Bandari S, Repka MA. Effect of pH Modifiers on the Solubility, Dissolution Rate, and Stability of Telmisartan Solid Dispersions Produced by Hot-melt Extrusion Technology. J Drug Deliv Sci Technol 2021; 65. [PMID: 34552669 DOI: 10.1016/j.jddst.2021.102674] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of the current study was to investigate the dual effect of an amorphous solid dispersion generated by hot melt extrusion and the addition of pH modifiers on the solubility and stability of telmisartan. Hydroxypropyl methylcellulose acetate succinate L grade was used as a polymeric carrier and recrystallization inhibitor, and meglumine, sodium carbonate, or Neusilin S2 were incorporated as pH modifiers to generate a desirable microenvironmental pH in the solid dispersions. Differential scanning calorimetry, powder X-ray diffraction, and Fourier transform infrared spectroscopy were incorporated to obtain the solid-state characterizations of telmisartan, and the results confirm a partial transformation of telmisartan to an amorphous state. An in vitro release study revealed that the transformation of telmisartan to an amorphous material improved its dissolution rate by 2-fold compared to pure drug and by up to 5-fold with the incorporation of pH modifiers. Results of the stability studies demonstrated that the samples have no significant degradation under accelerated stability conditions at 40 °C/75% RH.
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Affiliation(s)
- Ahmed Almotairy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Pharmaceutics and Pharmaceutical Technology Department, College of Pharmacy Taibah University, Al Madinah AlMunawarah 30001, Saudi Arabia
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Department of Pharmaceutics,College of Pharmacy, University of Hail, Hail, 81442, Saudi Arabia
| | - Abdulmajeed Althobaiti
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Mohammed Alyahya
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Abdullah Alzahrani
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Feng Zhang
- College of Pharmacy, The University of Texas at Austin, TX, 78712, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA
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Kallakunta VR, Sarabu S, Dudhipala N, Janga KY, Bandari S, Zhang F, Repka MA. Chrono modulated multiple unit particulate systems (MUPS) via a continuous hot melt double extrusion technique: Investigation of the formulation and process suitability. Eur J Pharm Biopharm 2021; 168:184-194. [PMID: 34464695 DOI: 10.1016/j.ejpb.2021.08.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/09/2021] [Accepted: 08/25/2021] [Indexed: 11/27/2022]
Abstract
The current study is aimed at the development of chrono modulated multiple unit particulate systems (MUPS) of nifedipine (ND) by a continuous double extrusion process. ND, a poorly soluble drug was formulated into an amorphous solid dispersion (ASD) to improve its solubility. Further, the ASD was converted into MUPS to control the drug release through a combination of pulsatile and sustained release portions. In the preparation of the ASD, the polymer HPMCAS LG was employed at different concentrations. MUPS were formulated by using Eudragit® FS100, Eudragit® RSPO, Klucel™ HF and lipids Precirol® ATO 5, Geleol™, Compritol® ATO5. The differential scanning calorimetry and powder X-ray diffraction studies of MUPS revealed the amorphous nature of ND. Scanning electron microscopy (SEM) studies depicted the surface morphology of the ASD and the gradual change in the surface of the coated MUPS during in-vitro release studies. The in-vitro drug release profiles of ASD indicated significant improvement (p < 0.05) of solubility of ND and MUPS demonstrated a combination of pulsatile and zero-order controlled release up to 12 h. Accelerated stability studies for MUPS at 40 °C/75% RH revealed the formulations were stable. These findings suggest hot melt double extrusion as a potential alternative for conventional techniques to produce MUPS.
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Affiliation(s)
- Venkata Raman Kallakunta
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, MS 38677, USA
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, MS 38677, USA
| | - Narendar Dudhipala
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, MS 38677, USA
| | - Karthik Yadav Janga
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, MS 38677, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, MS 38677, USA
| | - Feng Zhang
- The University of Texas at Austin, TX 78712, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, MS 38677, USA; Pii Center for Pharmaceutical Technology, University of Mississippi, University, MS 38677, USA.
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Muhindo D, Ashour EA, Almutairi M, Joshi PH, Repka MA. CONTINUOUS PRODUCTION OF RALOXIFENE HYDROCHLORIDE LOADED NANOSTRUCTURED LIPID CARRIERS USING HOT-MELT EXTRUSION TECHNOLOGY. J Drug Deliv Sci Technol 2021; 65. [PMID: 34306183 DOI: 10.1016/j.jddst.2021.102673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The aim of this study was to utilize a continuous process for the production of orally administered raloxifene hydrochloride (RX-HCl) loaded nanostructured lipid carrier (NLC) formulations for extended drug release using hot-melt extrusion (HME) technology coupled with probe sonication, and also to evaluate the in vitro characteristics of the prepared NLCs. Preparation of the NLCs using HME technology involved two main steps, first formation of a pre-emulsion after extrusion and then size reduction of the pre-emulsion using probe sonication to obtain the NLCs. A screw speed of 100 rpm and a barrel temperature of 85 °C, were used in the extrusion process. NLCs prepared by HME technology showed a lower particle size compared to those prepared by the conventional probe sonication method. The prepared NLCs had high entrapment efficiency values (>90 %). In vitro drug release was evaluated using dialysis bag diffusion technique and USP apparatus I. Overall, the RX-HCl loaded NLCs had a higher rate of drug release than the pure drug. The release profile for the F4-3 NLC formulations and pure drug at the beginning and end of the stability study were comparable. The particle size of the prepared NLCs remained stable over the storage period and all PDI and zeta potential values were ≤ 0.5 and in the range of -15 to -30 mV, respectively, indicating good physical stability of the formulations. In summary, HME technology and probe sonication were successfully used to prepare RX-HCl loaded NLC formulations with shorter processing times as compared to the conventional probe sonication method, which makes this technique a uniquely more industry-friendly method.
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Affiliation(s)
- Derick Muhindo
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi 38677
| | - Eman A Ashour
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi 38677
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi 38677.,Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail, 81442, Saudi Arabia
| | - Poorva H Joshi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi 38677
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi 38677.,Pii Center for Pharmaceutical Technology, School of Pharmacy, University of Mississippi, University, Mississippi 38677
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Nyavanandi D, Kallakunta VR, Sarabu S, Butreddy A, Narala S, Bandari S, Repka MA. Impact of hydrophilic binders on stability of lipid-based sustained release matrices of quetiapine fumarate by the continuous twin screw melt granulation technique. ADV POWDER TECHNOL 2021; 32:2591-2604. [PMID: 34262241 PMCID: PMC8274555 DOI: 10.1016/j.apt.2021.05.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Dose dumping is the major drawback of sustained release (SR) matrices. The current research aimed to develop the stable lipid-based SR matrices of quetiapine fumarate (QTF) using Geleol™ (glyceryl monostearate; GMS) as the lipid matrix carrier and Klucel™ EF (HPC EF), Kollidon® VA64, and Kollidon® 12PF as hydrophilic binders. Formulations were developed using advanced twin screw melt granulation (TSMG) approach and the direct compression (DC) technique. Compared with the blends of DC, the granules of TSMG exhibited improved flow properties and tabletability. Solid-state characterization by differential scanning calorimetry of the prepared granules exhibited the crystalline nature of the lipid. Fourier transform infrared spectroscopy demonstrated no interaction between the formulation ingredients. The compressed matrices of TSMG and DC resulted in the sustained release of a drug over 16-24 h. Upon storage under accelerated conditions for 6 months, the matrices of TSMG retained their sustained release characteristics with no dose dumping in alcohol, whereas the matrices of DC resulted in the dose dumping of the drug attributing to the loss of matrix integrity and phase separation of lipid. Thus, it is concluded that the uniform distribution of a softened binder into a molten lipid carrier results in the stable matrices of TSMG.
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Affiliation(s)
- Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Venkata Raman Kallakunta
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Arun Butreddy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Sagar Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Michael A. Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA
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Butreddy A, Sarabu S, Bandari S, Batra A, Lawal K, Chen NN, Bi V, Durig T, Repka MA. Influence of Plasdone ™ S630 Ultra-an Improved Copovidone on the Processability and Oxidative Degradation of Quetiapine Fumarate Amorphous Solid Dispersions Prepared via Hot-Melt Extrusion Technique. AAPS PharmSciTech 2021; 22:196. [PMID: 34184149 DOI: 10.1208/s12249-021-02069-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/07/2021] [Indexed: 12/20/2022] Open
Abstract
In a formulation, traces of peroxides in copovidone can impact the stability of drug substances that are prone to oxidation. The present study aimed to investigate the impact of peroxides in novel Plasdone™ S630 Ultra and compare it with regular Plasdone™ S630 on the oxidative degradation of quetiapine fumarate amorphous solid dispersions prepared via hot-melt extrusion technique. The miscibility of copovidones with drug was determined using the Hansen solubility parameter, and the results indicated a miscible drug-polymer system. Melt viscosity as a function of temperature was determined for the drug-polymer physical mixture to identify the suitable hot-melt extrusion processing temperature. The binary drug and polymer (30:70 weight ratio) amorphous solid dispersions were prepared at a processing temperature of 160°C. Differential scanning calorimetry and Fourier transform infrared spectroscopy studies of amorphous solid dispersions revealed the formation of a single-phase amorphous system with intermolecular hydrogen bonding between the drug and polymer. The milled extrudates were compressed into tablets by using extragranular components and evaluated for tabletability. Stability studies of the milled extrudates and tablet formulations were performed to monitor the oxidative degradation impurity (N-oxide). The N-oxide impurity levels in the quetiapine fumarate - Plasdone™ S630 Ultra milled extrudates and tablet formulations were reduced by 2- and 3-folds, respectively, compared to those in quetiapine fumarate - Plasdone™ S630. The reduced oxidative degradation and improved hot-melt extrusion processability of Plasdone™ S630 Ultra make it a better choice for oxidation-labile drugs over Plasdone™ S630 copovidone.
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Thakkar R, Komanduri N, Dudhipala N, Tripathi S, Repka MA, Majumdar S. Development and optimization of hot-melt extruded moxifloxacin hydrochloride inserts, for ocular applications, using the design of experiments. Int J Pharm 2021; 603:120676. [PMID: 33961956 DOI: 10.1016/j.ijpharm.2021.120676] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/18/2021] [Accepted: 04/30/2021] [Indexed: 01/01/2023]
Abstract
The current study sought to formulate sustained-release hot-melt extruded (HME) ocular inserts of moxifloxacin hydrochloride (MOX; MOX-HME) for the treatment of bacterial keratitis. The concentration of Eudragit™ FS-100 (FS) and propylene glycol (PG) used as polymer and plasticizer, respectively, in the inserts were optimized using the central composite design (CCD) to achieve sustained release. The inserts were characterized for weight, thickness, surface characteristics, pH, and in vitro release profile. The crystalline characteristics of MOX and surface morphology of the inserts were evaluated using differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). Furthermore, ex vivo permeation through rabbit cornea and stability of the optimized MOX-HME insert was investigated. The results demonstrate an inverse correlation between FS concentration and MOX release from the MOX-HME inserts, and a potential 24 h release. The optimized MOX-HME inserts were found to be stable at room temperature for four months, showing no significant change in drug content, pH and release profile. MOX converted into an amorphous form in the MOX-HME inserts and did not recrystallize during the study period. SEM analysis confirmed the smooth surface of the MOX-HME insert. The ex vivo studies revealed that the MOX-HME inserts provided a much prolonged transcorneal MOX flux as compared to the commercial ophthalmic solution and the immediate-release MOX-HME insert. The results indicate that MOX-HME inserts could potentially provide a once-a-day application, consequently reducing the dosing frequency and acting as an alternative delivery system in the management of bacterial infections.
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Affiliation(s)
- Ruchi Thakkar
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA; Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS 38677, USA
| | - Neeraja Komanduri
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA; Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS 38677, USA
| | - Narendar Dudhipala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA; Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS 38677, USA
| | - Siddharth Tripathi
- Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS 38677, USA; National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA; Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS 38677, USA; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA
| | - Soumyajit Majumdar
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA; Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS 38677, USA.
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Dumpa N, Butreddy A, Wang H, Komanduri N, Bandari S, Repka MA. 3D printing in personalized drug delivery: An overview of hot-melt extrusion-based fused deposition modeling. Int J Pharm 2021; 600:120501. [PMID: 33746011 PMCID: PMC8089048 DOI: 10.1016/j.ijpharm.2021.120501] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/09/2021] [Accepted: 03/13/2021] [Indexed: 01/01/2023]
Abstract
Advancements in pharmaceutical technologies have led to the personalization of therapies over the last decade. Three-dimensional printing (3DP) is an emerging technique in the manufacturing of pharmaceutical dosage forms because of its potential to create complex and customized dosage forms according to the patient's needs. Among the various 3DP techniques based on different functioning mechanisms, fused deposition modeling (FDM) 3D printing is a versatile and widely used method with advantages such as precision of quantity and the ability to incorporate different fill densities. This method is also economical and easily produces complex designs. Hot-melt extrusion (HME) is an established technique in pharmaceutical manufacturing that is utilized in the development of filaments which are used as "ink roll" or feedstock material in FDM 3D printing. This review discusses the various stages involved in FDM 3D printing, including feedstock filament preparation using HME, digital dosage form designs, filament characterization, and various novel applications, and future perspectives.
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Affiliation(s)
- Nagireddy Dumpa
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Arun Butreddy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Honghe Wang
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Neeraja Komanduri
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA.
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Bandari S, Nyavanandi D, Dumpa N, Repka MA. Coupling hot melt extrusion and fused deposition modeling: Critical properties for successful performance. Adv Drug Deliv Rev 2021; 172:52-63. [PMID: 33571550 DOI: 10.1016/j.addr.2021.02.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/14/2021] [Accepted: 02/04/2021] [Indexed: 01/19/2023]
Abstract
Interest in 3D printing for pharmaceutical applications has increased in recent years. Compared to other 3D printing techniques, hot melt extrusion (HME)-based fused deposition modeling (FDM) 3D printing has been the most extensively investigated for patient-focused dosage. HME technology can be coupled with FDM 3D printing as a continuous manufacturing process. However, the crucial pharmaceutical polymers, formulation and process parameters must be investigated to establish HME-coupled FDM 3D printing. These advancements will lead the way towards developing continuous drug delivery systems for personalized therapy. This brief overview classifies pharmaceutical additive manufacturing, Hot Melt Extrusion, and Fused Deposition Modeling 3D printing techniques with a focus on coupling HME and FDM 3D printing processes. It also provides insights on the critical material properties, process and equipment parameters and limitations of successful HME-coupled FDM systems.
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Affiliation(s)
- Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Nagireddy Dumpa
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA.
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Butreddy A, Almutairi M, Komanduri N, Bandari S, Zhang F, Repka MA. Multicomponent crystalline solid forms of aripiprazole produced via hot melt extrusion techniques: An exploratory study. J Drug Deliv Sci Technol 2021; 63. [PMID: 33959199 DOI: 10.1016/j.jddst.2021.102529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multicomponent crystalline solid forms (salts, cocrystals and eutectics) are a promising means of enhancing the dissolution behavior of poorly soluble drugs. The present study demonstrates the development of multicomponent solid forms of aripiprazole (ARP) prepared with succinic acid (SA) and nicotinamide (NA) as coformers using the hot melt extrusion (HME) technique. The HME-processed samples were characterized and analyzed using differential scanning calorimetry (DSC), hot stage microscopy (HSM), Fourier transform infrared (FTIR) spectroscopy, powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM). The DSC and HSM analyses revealed a characteristic single melting temperature in the solid forms, which differed from the melting points of the individual components. The discernible changes in the FTIR (amide C=O stretching) and PXRD results for ARP-SA confirm the formation of new crystalline solid forms. In the case of ARP-NA, these changes were less prominent, without the appearance or disappearance of peaks, suggesting no change in the crystal lattice. The SEM images demonstrated morphological differences between the HME-processed samples and the individual parent components. The in vitro dissolution and microenvironment pH measurement studies revealed that ARP-SA showed a higher dissolution rate, which could be due to the acidic microenvironment pH imparted by the coformer. The observations of the present study demonstrate the applicability of the HME technique for the development of ARP multicomponent solid forms.
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Affiliation(s)
- Arun Butreddy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Mashan Almutairi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.,Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail, 81442, Saudi Arabia
| | - Neeraja Komanduri
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Feng Zhang
- College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.,Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA
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Rangappa S, Shankar VK, Jo S, Repka MA, Murthy SN. Chemotherapeutic Agent-Induced Vulvodynia, an Experimental Model. AAPS PharmSciTech 2021; 22:95. [PMID: 33686480 DOI: 10.1208/s12249-021-01969-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 02/18/2021] [Indexed: 11/30/2022] Open
Abstract
Vulvodynia is a chronic clinical condition associated with vulvar pain that can impair the sexual, social, and psychological life of women. There is a need for more research to develop novel strategies and therapies for the treatment of vulvodynia. Vulvodynia in experimental animal models induced via infections, allergens, and diabetes are tedious and with lessor induction rate. The objective of the study was to explore the possibility of inducing vulvodynia using a chemotherapeutic agent in a rodent model. Paclitaxel is commonly used in treating breast and ovarian cancer, whose dose-limiting side effect is peripheral neuropathy. Studies have shown that peripheral neuropathy is one of the etiologies for vulvodynia. Following paclitaxel administration (2 mg/kg i.p.), the intensity of vulvar hypersensitivity was assessed using a series of von Frey filaments (0.008 to 1 g) to ensure the induction of vulvodynia. Vulvodynia was induced from day 2 and was well sustained for 11 days. Furthermore, the induced vulvodynia was validated by investigating the potentiation of a flinch response threshold, upon topical application and systemic administration of gabapentin, a commonly used medication for treating neuropathic pain. The results demonstrate that vulvodynia was induced due to administration of paclitaxel. The fact that chemotherapeutic agent-induced vulvodynia was responsive to topical and parenterally administered gabapentin provides validity to the model. The study establishes a new, relatively simple and reliable animal model for screening drug molecules for vulvar hypersensitivity.
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Zhang J, Xu P, Vo AQ, Repka MA. Oral drug delivery systems using core-shell structure additive manufacturing technologies: a proof-of-concept study. J Pharm Pharmacol 2021; 73:152-160. [PMID: 33793804 PMCID: PMC7940344 DOI: 10.1093/jpp/rgaa037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/23/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The aim of this study was to couple fused deposition modelling 3D printing with melt extrusion technology to produce core-shell-structured controlled-release tablets with dual-mechanism drug-release performance in a simulated intestinal fluid medium. Coupling abovementioned technologies for personalized drug delivery can improve access to complex dosage formulations at a reasonable cost. Compared with traditional pharmaceutical manufacturing, this should facilitate the following: (1) the ability to manipulate drug release by adjusting structures, (2) enhanced solubility and bioavailability of poorly water-soluble drugs and (3) on-demand production of more complex structured dosages for personalized treatment. METHODS Acetaminophen was the model drug and the extrusion process was evaluated by a series of physicochemical characterizations. The geometries, morphologies, and in vitro drug-release performances were compared between directly compressed and 3D-printed tablets. KEY FINDINGS Initially, 3D-printed tablets released acetaminophen more rapidly than directly compressed tablets. Drug release became constant and steady after a pre-determined time. Thus, rapid effectiveness was ensured by an initially fast acetaminophen release and an extended therapeutic effect was achieved by stabilizing drug release. CONCLUSIONS The favourable drug-release profiles of 3D-printed tablets demonstrated the advantage of coupling HME with 3D printing technology to produce personalized dosage formulations.
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Affiliation(s)
- Jiaxiang Zhang
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, University, MS, USA
| | - Pengchong Xu
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, University, MS, USA
| | - Anh Q Vo
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, University, MS, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, University, MS, USA
- Pii Center for Pharmaceutical Innovation and Instruction, The University of Mississippi, University, MS, USA
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