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Rayapolu RG, Yadav B, Apte SS, Venuganti VVK. Development of posaconazole nanocrystalline solid dispersion: preparation, characterization and in vivo evaluation. Pharm Dev Technol 2024; 29:530-540. [PMID: 38713634 DOI: 10.1080/10837450.2024.2353314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 05/06/2024] [Indexed: 05/09/2024]
Abstract
OBJECTIVE Posaconazole (PCZ) is an antifungal drug, which acts by inhibiting the lanosterol-14α-demethylase enzyme. It is a biopharmaceutical classification system class II drug with its bioavailability being limited by poor aqueous solubility. The aim of this study was to improve the oral bioavailability of PCZ by preparing nanocrystalline solid dispersion (NCS). METHODS PCZ-NCS was prepared by a combination of precipitation and high-pressure homogenization followed by freeze-drying. Several different surfactants and polymers were screened to produce NCS with smaller particle size and higher stability. RESULTS The optimized NCS formulation containing 0.2% Eudragit S100 and 0.2% SLS was found to provide the average particle size of 73.31 ± 4.7 nm with a polydispersity index of 0.23 ± 0.03. Scanning electron microscopy revealed the preparation of homogeneous and rounded particles. Differential scanning calorimetry and X-ray diffraction confirmed crystalline nature of NCS. Nanonization increased the saturation solubility of PCZ by about 18-fold in comparison with the neat drug. Intrinsic dissolution study showed 93% dissolution of PCZ within the first 10 min. In vivo pharmacokinetic study in Wistar rats showed that Cmax and AUCtotal of PCZ-NCS increased by 2.58- and 2.64-fold compared to the marketed formulation. CONCLUSION PCZ-NCS formulation presents a viable approach for enhancing the oral bioavailability of PCZ.
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Affiliation(s)
- Ranga Goud Rayapolu
- Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Shameerpet, Hyderabad, Telangana, India
- Natco Research Center, Natco Pharma Limited, Sanath Nagar, Hyderabad, Telangana, India
| | - Balvant Yadav
- Natco Research Center, Natco Pharma Limited, Sanath Nagar, Hyderabad, Telangana, India
| | - Shashank S Apte
- Natco Research Center, Natco Pharma Limited, Sanath Nagar, Hyderabad, Telangana, India
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2
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Bayat F, Dadashzadeh S, Aboofazeli R, Torshabi M, Baghi AH, Tamiji Z, Haeri A. Oral delivery of posaconazole-loaded phospholipid-based nanoformulation: Preparation and optimization using design of experiments, machine learning, and TOPSIS. Int J Pharm 2024; 653:123879. [PMID: 38320676 DOI: 10.1016/j.ijpharm.2024.123879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 01/07/2024] [Accepted: 02/02/2024] [Indexed: 02/08/2024]
Abstract
Phospholipid-based nanosystems show promising potentials for oral administration of hydrophobic drugs. The study introduced a novel approach to optimize posaconazole-loaded phospholipid-based nanoformulation using the design of experiments, machine learning, and Technique for Order of Preference by Similarity to the Ideal Solution. These approaches were used to investigate the impact of various variables on the encapsulation efficiency (EE), particle size, and polydispersity index (PDI). The optimized formulation, with %EE of ∼ 74 %, demonstrated a particle size and PDI of 107.7 nm and 0.174, respectively. The oral pharmacokinetic profiles of the posaconazole suspension, empty nanoformulation + drug suspension, and drug-loaded nanoformulation were evaluated. The nanoformulation significantly increased maximum plasma concentration and the area under the drug plasma concentration-time curve (∼3.9- and 6.2-fold, respectively) and could be administered without regard to meals. MTT and histopathological examinations were carried out to evaluate the safety of the nanoformulation and results exhibited no significant toxicity. Lymphatic transport was found to be the main mechanism of oral delivery. Caco-2 cell studies demonstrated that the mechanism of delivery was not based on an increase in cellular uptake. Our study represents a promising strategy for the development of phospholipid-based nanoformulations as efficient and safe oral delivery systems.
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Affiliation(s)
- Fereshteh Bayat
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Simin Dadashzadeh
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Aboofazeli
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Torshabi
- Department of Dental Biomaterials, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Hashemi Baghi
- Department of Industrial Engineering and Management Systems, Amirkabir University of Technology, Tehran, Iran
| | - Zahra Tamiji
- Department of Chemometrics, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Azadeh Haeri
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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3
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Rabeh ME, Vora LK, Moore JV, Bayan MF, McCoy CP, Wylie MP. Dual stimuli-responsive delivery system for self-regulated colon-targeted delivery of poorly water-soluble drugs. BIOMATERIALS ADVANCES 2024; 157:213735. [PMID: 38154402 DOI: 10.1016/j.bioadv.2023.213735] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 12/04/2023] [Accepted: 12/14/2023] [Indexed: 12/30/2023]
Abstract
Inflammatory bowel disease (IBD) are chronic inflammatory conditions which cause significant patient morbidity. Local drug delivery to the colon can improve treatment efficacy and reduce side effects associated with IBD treatment. Smart drug delivery systems are designed to regulate the release of therapeutic agents at the desired site of action. pH-responsive drug carriers have been previously utilised for improved oral drug delivery beyond stomach harsh conditions. Additionally, the colon possesses a diverse microbiome secreting bioactive molecules e.g., enzymes, that can be exploited for targeted drug delivery. We herein synthesised and characterised a 2-hydroxyethyl methacrylate and methacrylic acid copolymer, crosslinked with an azobenzyl crosslinker, that displayed pH- and enzyme-responsive properties. The swelling and drug release from hydrogel were analysed in pH 1.2, 6.5 and 7.4 buffers, and in the presence of rat caecal matter using metronidazole and mesalamine as model BCS Class I and IV drugs, respectively. Swelling studies displayed pH-responsive swelling behaviour, where swelling was maximum at pH 7.4 and minimum at pH 1.2 (69 % versus 32 %). Consequently, drug release was limited in gastric and small intestinal conditions but increased significantly when exposed to colonic conditions containing caecal matter. This system displays promising capacity for achieving colon-targeted drug delivery with enhanced dissolution of poorly water-soluble drugs for local treatment of IBD and other colon-targeted therapies.
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Affiliation(s)
- Mohmmad E Rabeh
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, UK
| | | | - Jessica V Moore
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, UK
| | - Mohammad F Bayan
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, UK; Faculty of Pharmacy, Philadelphia University, P.O Box 1, Amman 19392, Jordan
| | - Colin P McCoy
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, UK.
| | - Matthew P Wylie
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, UK.
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4
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He R, Lamm MS, Brunskill A, Axnanda S, Li Y. Impact of Processing Methods on the Physico-chemical Properties of Posaconazole Amorphous Solid Dispersions. Pharm Res 2024; 41:141-151. [PMID: 38040879 DOI: 10.1007/s11095-023-03632-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/27/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND & PURPOSE Different methods have been exploited to generate amorphous solid dispersions (ASDs) of poorly water-soluble drugs. However, the impact of processing methods on drug stability and dissolution hasn't been studied extensively. The purpose of the current study is to investigate the impact of the two common ASD processing methods, hot-melt extrusion (HME) and spray drying, on the chemical/physical stability and supersaturation of Posaconazole (Posa) based ASDs. METHODS & RESULTS ASDs with 25% drug loading in hydroxypropylmethylcellulose acetate succinate were prepared using HME, and two types of spray dryers, a Procept Sprayer (ASD-Procept) and a Nano Sprayer (ASD-Nano). The relative physical stability of these ASDs upon exposure to heat and crystalline API seeding followed the order: ASD-Nano > ASD-Procept ≈HME. ASD-Procept and ASD-Nano showed similar chemical stability, slightly less stable than HME under 40°C/75%RH. All three ASDs demonstrated similar supersaturation induction times, and de-supersaturation kinetics with or without crystalline seeds. CONCLUSIONS Posa ASDs prepared via spray drying were chemically less stable compared with HME, which can be attributed to their smaller particle size and hollow structure allowing oxygen penetration. For ASD-Procept and HME, the detailed phase changes involving recrystallization of amorphous Posa and a solid-solid phase transition from Posa Form I to Form Ia during the seed-induced studies were proposed. Similar dissolution and supersaturation-precipitation kinetics of three Posa ASDs indicated that any residual nanocrystals in the bulk ASDs were not enough to induce crystallization to differentiate ASDs made by three processing methods.
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Affiliation(s)
- Ru He
- Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Matthew S Lamm
- Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Andrew Brunskill
- Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Stephanus Axnanda
- Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Yongjun Li
- Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07065, USA.
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Deshkar S, Yeole P, Mahore J, Shinde A, Giram P. Polyelectrolyte-Complex-Based Hydrogel Inserts for Vaginal Delivery of Posaconazole and Probiotics. Gels 2023; 9:851. [PMID: 37998941 PMCID: PMC10670537 DOI: 10.3390/gels9110851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/01/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023] Open
Abstract
Worldwide, 40 to 50% of women suffer from reproductive tract infections. Most of these infections are mixed infections, are recurrent and difficult to treat with antimicrobials or antifungals alone. For symptomatic relief of infections, oral antimicrobial therapy must be combined with topical therapy. The purpose of this work is to optimize and develop a polyelectrolyte complex (PEC) of chitosan/anion for the formulation of posaconazole- and probiotic-loaded vaginal hydrogel inserts with prolonged release and significant mucoadhesion. PECs were prepared using chitosan as cationic and carrageenan, pectin and polycarbophil as anionic polymers via a lyophilization technique. PEC formation was confirmed by scanning electron microscopy, Fourier transform infrared spectroscopy and differential scanning calorimetry, by observing changes in its surface, physical and thermal properties. The probiotic, Lactobacillus casei, was added to the PEC during the lyophilization process and the effect on the probiotic viability was studied. The PECs were further compressed along with posaconazole to form hydrogel inserts and optimized using a 32 full-factorial design. The hydrogel inserts were assessed for swelling behavior, drug release, in vitro mucoadhesion and in vitro antifungal activity. The chitosan-pectin hydrogel insert demonstrated excellent mucoadhesion (1.25 N), sustained drug release (88.2 ± 2.4% in 8 h) and a swelling index of 154.7%. The efficacy of hydrogel inserts was evaluated using in vitro study with a co-culture of Lactobacillus casei and Candida albicans. This study revealed an increase in Lactobacilli casei count and a significant drop in the viable count of Candida albicans (4-log reduction in 24 h), indicating the effectiveness of hydrogel inserts in alleviating the fungal infection. Overall, our study demonstrated the potential of the hydrogel insert for preventing vaginal infection and restoring normal vaginal microbiota.
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Affiliation(s)
- Sanjeevani Deshkar
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
| | - Purva Yeole
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
| | - Jayashri Mahore
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
| | - Ankita Shinde
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
| | - Prabhanjan Giram
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
- Department of Pharmaceutical Sciences, The State University of New York, Buffalo, NY 14214, USA
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6
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Rama A, Govindan I, Hebbar S, Chaturvedi A, Rani U, Naha A. Advancing posaconazole quantification analysis with a new reverse-phase HPLC method in its bulk and marketed dosage form. F1000Res 2023; 12:468. [PMID: 37396051 PMCID: PMC10314186 DOI: 10.12688/f1000research.132841.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/23/2023] [Indexed: 07/04/2023] Open
Abstract
Introduction: Posaconazole is a widely used antifungal drug, and its accurate quantification is essential for quality control and assessment of its pharmaceutical products. This study aimed to develop and validate a reverse-phase high-performance liquid chromatography (HPLC) analytical method for quantifying Posaconazole in bulk and dosage form. Methods: The HPLC method was developed and validated based on International Conference on Harmonisation (ICH) guidelines. The developed method was then applied to quantify Posaconazole in a marketed tablet formulation. The method's specificity, linearity, precision, accuracy, robustness, and stability were evaluated. Results: The developed HPLC method showed good linearity over a 2-20 μg/mL concentration range. The percentage recovery of Posaconazole from the bulk and marketed formulations was found to be 99.01% and 99.05%, respectively. The intra-day and inter-day precisions were less than 1%, and the method was stable under different conditions. The HPLC method was successfully applied to quantify Posaconazole in the marketed formulation. Conclusion: The developed and validated HPLC method is reliable and efficient for analyzing Posaconazole in bulk and dosage forms. The method's accuracy, precision, specificity, linearity, robustness, and stability demonstrate its effectiveness. The method can be used for the quality control and assessment of Posaconazole-containing pharmaceutical products.
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Affiliation(s)
- Annamalai Rama
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Induja Govindan
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Srinivas Hebbar
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Abhishek Chaturvedi
- Division of Biochemistry, Department of Basic Medical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Usha Rani
- Department of Social Health and Innovation, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Anup Naha
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
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Khare P, Chogale MM, Kakade P, Patravale VB. Gellan gum-based in situ gelling ophthalmic nanosuspension of Posaconazole. Drug Deliv Transl Res 2022; 12:2920-2935. [PMID: 35538191 PMCID: PMC9089292 DOI: 10.1007/s13346-022-01155-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2022] [Indexed: 12/16/2022]
Abstract
The formulation and delivery of highly hydrophobic drugs in an optimized dosage form is challenging to formulation scientists. Posaconazole has shown promising action in case studies against fungal keratitis. Biological macromolecules like gellan gum would aid in enhancing the availability of such drugs by increasing the contact time of the formulation. Herein, we propose a transmucosal ocular delivery system of Posaconazole by developing a gellan gum-based in situ gelling nanosuspension. The HPLC method for Posaconazole was developed and validated as per ICH guidelines. The nanosuspension was prepared by microfluidization and optimized by Quality by Design. The gellan gum concentration selected was 0.4% w/v based on the viscosity and mucoadhesion measurements. A greater zone of inhibition of ~ 15 mm was observed for the prepared nanosuspension as compared to ~ 11 mm for the marketed itraconazole nanosuspension. A potential irritancy score of 0.85, considered to be non-irritant, was observed for the developed nanosuspension. Higher drug release of ~ 35% was noted for the nanosuspension compared to about ~ 10% for the coarse suspension. Ex vivo corneal retention studies on excised goat cornea demonstrated ~ 70% drug retention in the tissue. Graphical abstract depicting the central hypothesis of the work.
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Affiliation(s)
- Purva Khare
- Institute of Chemical Technology, Department of Pharmaceutical Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai-400019 Maharashtra India
| | - Manasi M. Chogale
- Institute of Chemical Technology, Department of Pharmaceutical Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai-400019 Maharashtra India
| | - Pratik Kakade
- Institute of Chemical Technology, Department of Pharmaceutical Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai-400019 Maharashtra India
| | - Vandana B. Patravale
- Institute of Chemical Technology, Department of Pharmaceutical Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai-400019 Maharashtra India
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8
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Challenges in the Treatment of Invasive Aspergillosis in Immunocompromised Children. Antimicrob Agents Chemother 2022; 66:e0215621. [PMID: 35766509 PMCID: PMC9295552 DOI: 10.1128/aac.02156-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Invasive aspergillosis (IA) is associated with significant morbidity and mortality. Voriconazole remains the drug of choice for the treatment of IA in children; however, the complex kinetics of voriconazole in children make dosing challenging and therapeutic drug monitoring (TDM) essential for treatment success. The overarching goal of this review is to discuss the role of voriconazole, posaconazole, isavuconazole, liposomal amphotericin B, echinocandins, and combination antifungal therapy for the treatment of IA in children. We also provide a detailed discussion of antifungal TDM in children.
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Durgun ME, Kahraman E, Hacıoğlu M, Güngör S, Özsoy Y. Posaconazole micelles for ocular delivery: in vitro permeation, ocular irritation and antifungal activity studies. Drug Deliv Transl Res 2022; 12:662-675. [PMID: 33830458 DOI: 10.1007/s13346-021-00974-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2021] [Indexed: 12/26/2022]
Abstract
Posaconazole (PSC) is a triazole group anti-fungal agent with the widest spectrum. Although there is no commercially available ocular dosage form, its diluted oral suspension preparation (Noxafil®) is used as off-label in topical treatment of severe keratitis and sclerokeratitis in the clinic. However, ocular bioavailability of PSC suspension form is extremely low due to its highly lipophilic character. Thus, there is a clinical need to improve its ocular bioavailability and to develop novel delivery system for the treatment of ocular fungal infections. Herein, we studied ex vivo permeation, penetration, anti-fungal activity, and Hen's Egg Test-Chorioallantoic Membrane (HET-CAM) toxicity tests in order to assess ocular targeting of PSC micelles, which were optimized in our previous study. The results indicated that micellar carrier system increased the permeability of PSC to eye tissues. Micelles showed higher affinity to ocular tissues than that of commercial oral suspension of PSC (Noxafil®). In vitro anti-fungal activity data also confirmed the efficacy of PSC loaded micellar formulations against Candida. albicans strains. The relative safety of the optimized micelles on the ocular tissue was shown with the HET-CAM toxicity test. In conclusion, micellar systems could be a promising strategy for the effective and safe delivery of PSC in the treatment of ocular fungal infections.
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Affiliation(s)
- Meltem Ezgi Durgun
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, Istanbul, Turkey.
| | - Emine Kahraman
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, Istanbul, Turkey
| | - Mayram Hacıoğlu
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Istanbul, Turkey
| | - Sevgi Güngör
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, Istanbul, Turkey
| | - Yıldız Özsoy
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, Istanbul, Turkey
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10
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Kapourani A, Tzakri T, Valkanioti V, Kontogiannopoulos KN, Barmpalexis P. Drug crystal growth in ternary amorphous solid dispersions: Effect of surfactants and polymeric matrix-carriers. Int J Pharm X 2021; 3:100086. [PMID: 34151251 PMCID: PMC8193146 DOI: 10.1016/j.ijpx.2021.100086] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 01/10/2023] Open
Abstract
The present study evaluates the crystal growth rate of amorphous drugs when dispersed in different ternary polymeric amorphous solid dispersions (ASDs) in the presence of surfactants. Specifically, ternary ASDs of aprepitant (APT, selected as a model drug) were prepared via melt-quench cooling by evaluating three commonly used ASDs matrix/carriers, namely hydroxypropyl cellulose (HPC), poly(vinylpyrrolidone) (PVP) and the copolymer Soluplus® (SOL), and two suitable surfactants, namely d-alpha tocopheryl polyethylene glycol 1000 succinate (TPGS) and poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (P407). Results showed that all components were completely miscible (verified via hot stage polarized microscopy) and both surfactants were acting as plasticizers to the API. APT's crystal growth rate was increased in the presence of both P407 and TPGS, while PVP was identified as the matrix/carrier with the greatest impact API's crystal growth rate inhibition. Interestingly, TPGS presented a noticeable synergistic effect when combined with PVP resulting in a further reduction of APT's crystal growth rate. Furthermore, evaluation of APT's nucleation induction time in dissolution medium (PBS pH 6.8) revealed PVP as the most effective crystallization inhibitor, whereas the addition of TPGS showed to improve PVP's ability to inhibit APT's recrystallization. Finally, the formation of intermolecular interactions in the ternary APT-PVP-TPGS provided an explanation for the observed PVP-TPGS synergistic effects, with molecular dynamics simulations being able to unravel the type and extent of these interactions on a theoretical basis.
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Affiliation(s)
- Afroditi Kapourani
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Theodora Tzakri
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Vasiliki Valkanioti
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Konstantinos N. Kontogiannopoulos
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Natural Products Research Centre of Excellence-AUTH (NatPro-AUTH), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
| | - Panagiotis Barmpalexis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Natural Products Research Centre of Excellence-AUTH (NatPro-AUTH), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
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11
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Bhujbal SV, Mitra B, Jain U, Gong Y, Agrawal A, Karki S, Taylor LS, Kumar S, (Tony) Zhou Q. Pharmaceutical amorphous solid dispersion: A review of manufacturing strategies. Acta Pharm Sin B 2021; 11:2505-2536. [PMID: 34522596 PMCID: PMC8424289 DOI: 10.1016/j.apsb.2021.05.014] [Citation(s) in RCA: 182] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/05/2021] [Accepted: 04/13/2021] [Indexed: 12/15/2022] Open
Abstract
Amorphous solid dispersions (ASDs) are popular for enhancing the solubility and bioavailability of poorly water-soluble drugs. Various approaches have been employed to produce ASDs and novel techniques are emerging. This review provides an updated overview of manufacturing techniques for preparing ASDs. As physical stability is a critical quality attribute for ASD, the impact of formulation, equipment, and process variables, together with the downstream processing on physical stability of ASDs have been discussed. Selection strategies are proposed to identify suitable manufacturing methods, which may aid in the development of ASDs with satisfactory physical stability.
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Key Words
- 3DP, three-dimensional printing
- ASDs, amorphous solid dispersions
- ASES, aerosol solvent extraction system
- Amorphous solid dispersions
- CAP, cellulose acetate phthalate
- CO2, carbon dioxide
- CSG, continuous-spray granulation
- Co-precipitation
- Downstream processing
- Drug delivery
- EPAS, evaporative aqueous solution precipitation
- Eudragit®, polymethacrylates derivatives
- FDM, fused deposition modeling
- GAS, gas antisolvent
- HME, hot-melt extrusion
- HPC, hydroxypropyl cellulose
- HPMC, hydroxypropyl methylcellulose
- HPMCAS, hydroxypropyl methylcellulose acetate succinate
- HPMCP, hypromellose phthalate
- Manufacturing
- Melting process
- PCA, precipitation with compressed fluid antisolvent
- PGSS, precipitation from gas-saturated solutions
- PLGA, poly(lactic-co-glycolic acid
- PVP, polyvinylpyrrolidone
- PVPVA, polyvinylpyrrolidone/vinyl acetate
- RESS, rapid expansion of a supercritical solution
- SAS, supercritical antisolvent
- SCFs, supercritical fluids
- SEDS, solution-enhanced dispersion by SCF
- SLS, selective laser sintering
- Selection criteria
- Soluplus®, polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer
- Solvent evaporation
- Stability
- Tg, glass transition temperature
- USC, ultrasound compaction
- scCO2, supercritical CO2
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Affiliation(s)
- Sonal V. Bhujbal
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
| | - Biplob Mitra
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Uday Jain
- Material Science and Engineering, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Yuchuan Gong
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Anjali Agrawal
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Shyam Karki
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Lynne S. Taylor
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
| | - Sumit Kumar
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Qi (Tony) Zhou
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
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12
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Thakore SD, Akhtar J, Jain R, Paudel A, Bansal AK. Analytical and Computational Methods for the Determination of Drug-Polymer Solubility and Miscibility. Mol Pharm 2021; 18:2835-2866. [PMID: 34041914 DOI: 10.1021/acs.molpharmaceut.1c00141] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the pharmaceutical industry, poorly water-soluble drugs require enabling technologies to increase apparent solubility in the biological environment. Amorphous solid dispersion (ASD) has emerged as an attractive strategy that has been used to market more than 20 oral pharmaceutical products. The amorphous form is inherently unstable and exhibits phase separation and crystallization during shelf life storage. Polymers stabilize the amorphous drug by antiplasticization, reducing molecular mobility, reducing chemical potential of drug, and increasing glass transition temperature in ASD. Here, drug-polymer miscibility is an important contributor to the physical stability of ASDs. The current Review discusses the basics of drug-polymer interactions with the major focus on the methods for the evaluation of solubility and miscibility of the drug in the polymer. Methods for the evaluation of drug-polymer solubility and miscibility have been classified as thermal, spectroscopic, microscopic, solid-liquid equilibrium-based, rheological, and computational methods. Thermal methods have been commonly used to determine the solubility of the drug in the polymer, while other methods provide qualitative information about drug-polymer miscibility. Despite advancements, the majority of these methods are still inadequate to provide the value of drug-polymer miscibility at room temperature. There is still a need for methods that can accurately determine drug-polymer miscibility at pharmaceutically relevant temperatures.
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Affiliation(s)
- Samarth D Thakore
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar, Mohali, Punjab 160062, India
| | - Junia Akhtar
- Department of Pharmaceutical Technology (Formulations), National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar, Mohali, Punjab 160062, India
| | - Ranjna Jain
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar, Mohali, Punjab 160062, India
| | - Amrit Paudel
- Research Center Pharmaceutical Engineering (RCPE) GmbH, Inffeldgasse 13, 8010 Graz, Austria.,Institute for Process and Particle Engineering, Graz University of Technology, Inffeldgasse 13, 8010 Graz, Austria
| | - Arvind K Bansal
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar, Mohali, Punjab 160062, India
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13
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Probing the Molecular-Level Interactions in an Active Pharmaceutical Ingredient (API) - Polymer Dispersion and the Resulting Impact on Drug Product Formulation. Pharm Res 2020; 37:94. [PMID: 32405662 DOI: 10.1007/s11095-020-02813-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 04/02/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE An investigation of underlying mechanisms of API-polymer interaction patterns has the potential to provide valuable insights for selecting appropriate formulations with superior physical stability and processability. MATERIALS AND METHODS In this study, copovidone was used as a polymeric carrier for several model compounds including clotrimazole, nifedipine, and posaconazole. The varied chemical structures conferred the ability for the model compounds to form distinct interactions with copovidone. Rheology and nuclear magnetic resonance (NMR) were combined to investigate the molecular pattern and relative strength of active pharmaceutical ingredient (API)-polymer interactions. In addition, the impact of the interactions on formulation processability via hot melt extrusion (HME) and physical stability were evaluated. RESULTS The rheological response of an API-polymer system was found to be highly sensitive to API-polymer interaction, depending both on API chemistry and API-polymer miscibility. In the systems studied, dispersed API induced a stronger plasticizer effect on the polymer matrix compared to crystalline/aggregated API. Correspondingly, the processing torque via HME showed a proportional relationship with the maximum complex viscosity of the API-polymer system. In order to quantitatively evaluate the relative strength of the API-polymer interaction, homogeneously dispersed API-polymer amorphous samples were prepared by HME at an elevated temperature. DSC, XRD, and rheology were employed to confirm the amorphous integrity and homogeneity of the resultant extrudates. Subsequently, the homogeneously dispersed API-polymer amorphous dispersions were interrogated by rheology and NMR to provide a qualitative and quantitative assessment of the nature of the API-polymer interaction, both macroscopically and microscopically. Rheological master curves of frequency sweeps of the extrudates exhibited a strong dependence on the API chemistry and revealed a rank ordering of the relative strength of API-copovidone interactions, in the order of posaconazole > nifedipine > clotrimazole. NMR data provided the means to precisely map the API-polymer interaction pattern and identify the specific sites of interaction from a molecular perspective. Finally, the impact of API-polymer interactions on the physical stability of the resultant extrudates was studied. CONCLUSION Qualitative and quantitative evaluation of the relative strength of the API-polymer interaction was successfully accomplished by utilizing combined rheology and NMR. Graphical Abstract.
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14
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Chae H, Cho SY, Yi Y, Lee JJ, Cha K, Kim M, Kim Y, Kim YJ, Kim HJ, Lee DG. Evaluation of posaconazole plasma concentrations achieved with the delayed-release tablets in Korean high-risk patients with haematologic malignancy. Mycoses 2019; 63:131-138. [PMID: 31698506 DOI: 10.1111/myc.13031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/03/2019] [Accepted: 11/04/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Posaconazole (PCZ) is a triazole approved for prophylaxis of invasive fungal infections. OBJECTIVES Herein, the impact of clinical variables on PCZ plasma concentrations (PPCs) attained with PCZ delayed-release tablet (DRT) was investigated and compared with a historical cohort treated with PCZ oral suspension (OS). PATIENTS/METHODS Steady-state PCZ PPCs in 513 patients with haematologic malignancy treated with PCZ-DRT were assessed and impact of variables were analysed. Also, a comparison with matched historical cohort treated with PCZ-OS was made. RESULTS The median PPC in the PCZ-DRT group was 1,308.9 ng/mL (range: 29.8-10 455.9). Use of proton pump inhibitor (1181 vs 1344 ng/mL, P = .0337) in the AML/myelodysplastic syndrome remission induction group, diarrhoea (867 vs 1543 ng/mL, P = .0325) and gastrointestinal graft-versus-host disease (870 vs 1713 ng/mL, P = .0178) in the HSCT group were associated with lower PPCs. There was lack of evidence that hepatotoxicity was related with PCZ-DRT. Higher prevalence of UGT1A4*3 allele (33.0%) was noted compared to allele frequency in Koreans in those with PPCs < 500 mg/mL. The median PPC in the PCZ-DRT group was significantly higher than that in the PCZ-OS group (1308.9 vs 713.0 ng/mL, P < .0001). Significantly less patients had PPCs < 700 ng/mL in the PCZ-DRT group compared to the PCZ-OS group (18.7% vs 48.0%, P < .0001). CONCLUSIONS Our study demonstrates that PCZ-DRT has enhanced absorption and bioavailability than PCZ-OS in real-world clinical settings. In addition, specific factors associated with lower PPCs should prompt consideration of therapeutic drug monitoring in patients treated with PCZ-DRT.
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Affiliation(s)
- Hyojin Chae
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Catholic Laboratory Development and Evaluation Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-Yeon Cho
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Vaccine Bio Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Catholic Hematology Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yunmi Yi
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Vaccine Bio Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Catholic Hematology Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeong Joong Lee
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kyoungho Cha
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Myungshin Kim
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Catholic Laboratory Development and Evaluation Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yonggoo Kim
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Catholic Laboratory Development and Evaluation Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoo-Jin Kim
- Catholic Hematology Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hee-Je Kim
- Catholic Hematology Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong-Gun Lee
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Vaccine Bio Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Catholic Hematology Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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15
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Medarević D, Djuriš J, Barmpalexis P, Kachrimanis K, Ibrić S. Analytical and Computational Methods for the Estimation of Drug-Polymer Solubility and Miscibility in Solid Dispersions Development. Pharmaceutics 2019; 11:pharmaceutics11080372. [PMID: 31374926 PMCID: PMC6722809 DOI: 10.3390/pharmaceutics11080372] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/18/2019] [Accepted: 07/22/2019] [Indexed: 01/21/2023] Open
Abstract
The development of stable solid dispersion formulations that maintain desired improvement of drug dissolution rate during the entire shelf life requires the analysis of drug-polymer solubility and miscibility. Only if the drug concentration is below the solubility limit in the polymer, the physical stability of solid dispersions is guaranteed without risk for drug (re)crystallization. If the drug concentration is above the solubility, but below the miscibility limit, the system is stabilized through intimate drug-polymer mixing, with additional kinetic stabilization if stored sufficiently below the mixture glass transition temperature. Therefore, it is of particular importance to assess the drug-polymer solubility and miscibility, to select suitable formulation (a type of polymer and drug loading), manufacturing process, and storage conditions, with the aim to ensure physical stability during the product shelf life. Drug-polymer solubility and miscibility can be assessed using analytical methods, which can detect whether the system is single-phase or not. Thermodynamic modeling enables a mechanistic understanding of drug-polymer solubility and miscibility and identification of formulation compositions with the expected formation of the stable single-phase system. Advance molecular modeling and simulation techniques enable getting insight into interactions between the drug and polymer at the molecular level, which determine whether the single-phase system formation will occur or not.
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Affiliation(s)
- Djordje Medarević
- Department of Pharmaceutical Technology and Cosmetology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia.
| | - Jelena Djuriš
- Department of Pharmaceutical Technology and Cosmetology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Panagiotis Barmpalexis
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Kyriakos Kachrimanis
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Svetlana Ibrić
- Department of Pharmaceutical Technology and Cosmetology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
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16
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Leelawattanachai P, Montakantikul P, Nosoongnoen W, Chayakulkeeree M. Pharmacokinetic/pharmacodynamic study of posaconazole delayed-release tablet in a patient with coexisting invasive aspergillosis and mucormycosis. Ther Clin Risk Manag 2019; 15:589-595. [PMID: 31114213 PMCID: PMC6497849 DOI: 10.2147/tcrm.s203625] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 03/30/2019] [Indexed: 11/24/2022] Open
Abstract
Limited information exists regarding the optimal dose of posaconazole delayed-release tablet for the treatment of invasive mold infection. Here, we report the case of a previously healthy 44-year-old Thai man who developed coexisting invasive pulmonary aspergillosis and mucormycosis following a car accident. He was treated with posaconazole delayed-release tablet. This report describes the pharmacokinetic/pharmacodynamic study, safety profile, and determination of the appropriate dosage of posaconazole delayed-release tablet in a patient with coexisting invasive aspergillosis and mucormycosis. Posaconazole exposure was analyzed by noncompartmental model. Ratio of area under the plasma concentration-time curve over the minimum inhibitory concentration (AUC/MIC) was applied to maximize the efficacy of posaconazole. The loading dose of 300 mg q 12 hrs was found to be potentially insufficient for achieving the AUC/MIC target for treatment of invasive mold infection with minimum inhibitory concentrations >0.01 mg/L. Early therapeutic drug monitoring to detect the drug concentration of posaconazole delayed-release tablet is necessary so that dosing adjustments can be made, as needed. In addition, a maintenance dose of either 400 or 300 mg once daily could achieve the AUC/MIC targets. These maintenance dosing regimens effectuated a successful clinical outcome with minimal adverse events.
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Affiliation(s)
- Pannee Leelawattanachai
- Division of Clinical Pharmacy, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand.,Department of Pharmacy, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
| | - Preecha Montakantikul
- Division of Clinical Pharmacy, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Wichit Nosoongnoen
- Division of Clinical Pharmacy, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Methee Chayakulkeeree
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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17
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Kujawski J, Czaja K, Dettlaff K, Żwawiak J, Ratajczak T, Bernard MK. Structural and spectroscopic properties of posaconazole – Experimental and theoretical studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Chowdhury N, Vhora I, Patel K, Bagde A, Kutlehria S, Singh M. Development of Hot Melt Extruded Solid Dispersion of Tamoxifen Citrate and Resveratrol for Synergistic Effects on Breast Cancer Cells. AAPS PharmSciTech 2018; 19:3287-3297. [PMID: 30218267 DOI: 10.1208/s12249-018-1111-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 06/20/2018] [Indexed: 02/02/2023] Open
Abstract
Primary standard therapy for ER-positive breast cancer being tamoxifen, newer delivery approach for enhancement of dissolution and therapeutic efficiency of tamoxifen through oral route could be a possible solution. In the present study, we investigated combination of tamoxifen (TAM) with resveratrol (RES) and observed that the combination is effective on MCF-7 breast cancer cells. To ensure co-delivery of the drugs, we explored the hot melt extrusion technique for simultaneously extruding two drugs together in order to enhance their bioavailability. As both are class II drugs with dissolution limited bioavailability, detailed formulation and process parameter analyses were carried out. Detailed characterization using microscopy, Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and X-ray powder diffraction (XRD) confirmed that both the drugs were molecularly dispersed in the matrix of Soluplus, CremophorRH40, and Poloxamer188, and no interactions between the ingredients were there during hot melt extrusion (HME) process. Dissolution studies confirmed that HME extrudates were able to release drug more rapidly than simple suspension formulation. Further, pharmacokinetic studies in rats were carried out for tamoxifen. Results demonstrated that extrusion significantly increased the tamoxifen oral bioavailability (p < 0.05) (Tmax = 2.00 ± 0.56 h, Cmax = 3.66 ± 1.49 μg/mL, AUC = 39.80 ± 16.24 μg h/mL, MRT = 20.49 ± 5.71) compared to the conventional suspension of tamoxifen (Tmax = 2.00 ± 0.71 h, Cmax = 2.41 ± 0.84 μg/mL, AUC = 12.82 ± 3.99 μg h/mL, MRT = 18.24 ± 5.95 h). In vitro cytotoxicity studies of TAM, RES, and their combination (TAM-RES) were evaluated with MCF7 cells. The combination showed significantly lower IC50 compared to TAM with increasing ratio of RES which is a result of apoptosis. HME-based simultaneous extrusion of TAM and RES formulation provides a suitable formulation strategy for breast cancer treatment and establishes proof of concept for extruding multiple drugs simultaneously for other applications in future.
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MESH Headings
- Administration, Oral
- Animals
- Antineoplastic Agents, Hormonal/administration & dosage
- Antineoplastic Agents, Hormonal/chemistry
- Antineoplastic Agents, Hormonal/metabolism
- Antineoplastic Agents, Phytogenic/administration & dosage
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/metabolism
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Antineoplastic Combined Chemotherapy Protocols/chemistry
- Antineoplastic Combined Chemotherapy Protocols/metabolism
- Breast Neoplasms/drug therapy
- Breast Neoplasms/metabolism
- Calorimetry, Differential Scanning/methods
- Chemistry, Pharmaceutical/methods
- Drug Development/methods
- Drug Synergism
- Hot Temperature
- Humans
- MCF-7 Cells
- Rats
- Rats, Sprague-Dawley
- Resveratrol/administration & dosage
- Resveratrol/chemistry
- Resveratrol/metabolism
- Spectroscopy, Fourier Transform Infrared/methods
- Tamoxifen/administration & dosage
- Tamoxifen/chemistry
- Tamoxifen/metabolism
- X-Ray Diffraction/methods
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Affiliation(s)
- Nusrat Chowdhury
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida, 32307, USA
| | - Imran Vhora
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida, 32307, USA
| | - Ketan Patel
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida, 32307, USA
- College of Pharmacy and Health Sciences, St. John's University, Jamaica, New York, 11439, USA
| | - Arvind Bagde
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida, 32307, USA
| | - Shallu Kutlehria
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida, 32307, USA
| | - Mandip Singh
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida, 32307, USA.
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19
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Chan T, Ouyang D. Investigating the molecular dissolution process of binary solid dispersions by molecular dynamics simulations. Asian J Pharm Sci 2017; 13:248-254. [PMID: 32104398 PMCID: PMC7032239 DOI: 10.1016/j.ajps.2017.07.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/17/2017] [Accepted: 07/26/2017] [Indexed: 12/31/2022] Open
Abstract
Dissolution molecular mechanism of solid dispersions still remains unclear despite thousands of reports about this technique. The aim of current research was to investigate the molecular dissolution mechanism of solid dispersions by molecular dynamics simulations. The formation of ibuprofen/polymer solid dispersions was modeled by the simulated annealing method. After that, the models of solid dispersions were immersed into the water box with 25–30 Å thicknesses and 50–100 ns MD simulations were performed to all systems. Simulation results showed various dissolution behaviors in different particle sizes and various polymers of solid dispersions. Small-sized particles of solid dispersions dissolved quickly in the water, while the large particles of PEG or PVP-containing solid dispersions gradually swelled in the dissolution process and drug molecules may aggregate together. In the dissolution process, the carboxylic groups of ibuprofen molecules turned its direction from polymer molecules to external water box and then the drug molecules left the polymer coils. At the same time, polymer coils gradually relaxed and became free polymer chains in the solution. In addition, solid dispersion with poloxamer could prevent the precipitate of drug molecules in the dissolution process, which is different from those of PEG or PVP-containing systems. This research provided us clear images of dissolution process of solid dispersions at the molecular level.
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Affiliation(s)
- TengIan Chan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Defang Ouyang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
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20
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Keating AV, Soto J, Tuleu C, Forbes C, Zhao M, Craig DQM. Solid state characterisation and taste masking efficiency evaluation of polymer based extrudates of isoniazid for paediatric administration. Int J Pharm 2017; 536:536-546. [PMID: 28687346 DOI: 10.1016/j.ijpharm.2017.07.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 06/15/2017] [Accepted: 07/03/2017] [Indexed: 11/30/2022]
Abstract
Hot melt extrusion has gained considerable attention as a novel technique for taste masking of bitter APIs. The aim of this study was to investigate whether hot melt extrusion could be used to develop taste masked formulations of isoniazid and also to evaluate and correlate different taste assessment methods Two polymers with different physico-chemical properties, Soluplus and Eudragit E-PO were chosen as carriers for the drug. Eudragit E-PO has already been widely used for taste masking due to its selective release properties, while Soluplus has not been studied in this regard but provides a useful comparator of a polymer that should release the drug reasonably efficiently. Polymeric formulations of isoniazid were produced with drug loadings of 20% and 30% w/w. The solid state characteristics of the formulations were assessed by differential scanning calorimetry and powder X-ray diffraction. The taste of isoniazid was assessed using the rodent Brief Access Taste Aversion (BATA) model, while formulations were assessed using the electronic tongue and dissolution under simulated oral conditions. Investigation into the drug loading effect with these two polymers showed that all Soluplus based extrudates with drug loading up to 30% w/w were fully amorphous while Eudragit E-PO based extrudates contained crystalline drug as demonstrated by both DSC and PXRD, dependent on loading. BATA testing of isoniazid gave an IC50 value, i.e. the dose of drug which inhibits 50% of licks, of 11.1mg/mL. Taste assessment of the formulations using both simulated oral drug release and the electronic tongue demonstrated that Eudragit E-PO based formulations had a better taste masking efficiency than Soluplus. This is due to the fact that significantly less isoniazid is released from the Eudragit E-PO based formulations under oral conditions.
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Affiliation(s)
- Alison V Keating
- UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Jessica Soto
- UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK; Novartis Pharma AG, Basel, Switzerland
| | - Catherine Tuleu
- UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Claire Forbes
- Pfizer UK Ltd., Ramsgate Road, Sandwich, Kent, CT13 9ND, UK
| | - Min Zhao
- School of Pharmacy, Queen's University Belfast, Lisburn Road, Belfast, BT9 7BL, UK
| | - Duncan Q M Craig
- UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK.
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21
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Update on Therapeutic Drug Monitoring of Antifungals for the Prophylaxis and Treatment of Invasive Fungal Infections. CURRENT FUNGAL INFECTION REPORTS 2017. [DOI: 10.1007/s12281-017-0287-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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22
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Edueng K, Mahlin D, Bergström CAS. The Need for Restructuring the Disordered Science of Amorphous Drug Formulations. Pharm Res 2017; 34:1754-1772. [PMID: 28523384 PMCID: PMC5533858 DOI: 10.1007/s11095-017-2174-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 05/01/2017] [Indexed: 11/25/2022]
Abstract
The alarming numbers of poorly soluble discovery compounds have centered the efforts towards finding strategies to improve the solubility. One of the attractive approaches to enhance solubility is via amorphization despite the stability issue associated with it. Although the number of amorphous-based research reports has increased tremendously after year 2000, little is known on the current research practice in designing amorphous formulation and how it has changed after the concept of solid dispersion was first introduced decades ago. In this review we try to answer the following questions: What model compounds and excipients have been used in amorphous-based research? How were these two components selected and prepared? What methods have been used to assess the performance of amorphous formulation? What methodology have evolved and/or been standardized since amorphous-based formulation was first introduced and to what extent have we embraced on new methods? Is the extent of research mirrored in the number of marketed amorphous drug products? We have summarized the history and evolution of amorphous formulation and discuss the current status of amorphous formulation-related research practice. We also explore the potential uses of old experimental methods and how they can be used in tandem with computational tools in designing amorphous formulation more efficiently than the traditional trial-and-error approach.
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Affiliation(s)
- Khadijah Edueng
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Centre, P.O. Box 580, SE-75123, Uppsala, Sweden
- Kulliyyah of Pharmacy,, International Islamic University Malaysia, Jalan Istana, 25200, Bandar Indera Mahkota, Pahang, Malaysia
| | - Denny Mahlin
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Centre, P.O. Box 580, SE-75123, Uppsala, Sweden
| | - Christel A S Bergström
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Centre, P.O. Box 580, SE-75123, Uppsala, Sweden.
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23
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Fule R, Dhamecha D, Khale A, Amin P. Formulation and Characterization of Sustained Release Microspheres of Lornoxicam Using Gelatin with HPMCAS Coating. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/masy.201500005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ritesh Fule
- H. K. College of Pharmacy; MHADA Complex Relief Road, Oshiwara, Jogeshwari (West) Mumbai 400102 Maharashtra India
- Department of Pharmaceutical Sciences and Technology; Institute of Chemical Technology, NAAC Accredited ‘A’ Grade, ELITE Status of Excellence; N. P. Marg, Matunga (E) Mumbai 400019 Maharashtra India
| | - Dinesh Dhamecha
- KLE University's College of Pharmacy; Nehru Nagar Belgaum 590010 Karnataka India
| | - Anubha Khale
- H. K. College of Pharmacy; MHADA Complex Relief Road, Oshiwara, Jogeshwari (West) Mumbai 400102 Maharashtra India
| | - Purnima Amin
- Department of Pharmaceutical Sciences and Technology; Institute of Chemical Technology, NAAC Accredited ‘A’ Grade, ELITE Status of Excellence; N. P. Marg, Matunga (E) Mumbai 400019 Maharashtra India
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24
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Wiederhold NP. Pharmacokinetics and safety of posaconazole delayed-release tablets for invasive fungal infections. Clin Pharmacol 2015; 8:1-8. [PMID: 26730212 PMCID: PMC4694668 DOI: 10.2147/cpaa.s60933] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Posaconazole is a broad-spectrum triazole antifungal agent with potent activity against various pathogenic fungi, including yeast and moulds. Clinical studies have demonstrated that this agent is efficacious as prophylaxis against invasive fungal infections in patients at high risk, and may also be useful as salvage therapy against invasive aspergillosis and mucormycosis. However, the bioavailability of posaconazole following administration by oral suspension, which was the only formulation clinically available for many years, is highly variable and negatively influenced by several factors. Because of this, many patients had subtherapeutic or undetectable posaconazole levels when the oral suspension was used. To overcome this limitation, a delayed-release tablet was developed and is now available for clinical use. Hot-melt extrusion technology is used to combine a pH-sensitive polymer with posaconazole to produce a formulation that releases the drug in the elevated pH of the intestine where absorption occurs rather than in the low-pH environment of the stomach. This results in enhanced bioavailability and increased posaconazole exposure. Studies in healthy volunteers have demonstrated significantly higher and more consistent exposures with the tablet formulation compared to the oral suspension. In addition, pharmacokinetic parameters following administration of the tablets were not significantly affected by medications that raise gastric pH or increase gastric motility, and the tablets could also be administered without regard to food. Similar results have also been found in patients at high risk for invasive fungal infections who have received posaconazole tablets. The tablet formulation also appears to be well tolerated to date, although data regarding clinical efficacy are needed.
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Affiliation(s)
- Nathan P Wiederhold
- Departments of Pathology and Medicine/Infectious Diseases, University of Texas Health Science Center at San Antonio, South Texas Reference Laboratories, San Antonio, TX, USA
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McKeage K. Posaconazole: A Review of the Gastro-Resistant Tablet and Intravenous Solution in Invasive Fungal Infections. Drugs 2015; 75:397-406. [DOI: 10.1007/s40265-015-0348-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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