Caccavo, Diego; Iannone, Marco; Barba, Anna Angela; Lamberti, Gaetano Impact of drug release in USP II and in-vitro stomach on pharmacokinetic: The case study of immediate-release carbamazepine tablets Journal Article Chemical Engineering Science, 267 (118371), 2024, ISSN: 92509. Abstract | Links | BibTeX | Tags: case study, drug release, in-vitro stomach @article{Caccavo2024b,
title = {Impact of drug release in USP II and in-vitro stomach on pharmacokinetic: The case study of immediate-release carbamazepine tablets},
author = {Diego Caccavo and Marco Iannone and Anna Angela Barba and Gaetano Lamberti},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85145821046&doi=10.1016%2fj.ces.2022.118371&partnerID=40&md5=d837f63862ad2ca8881845352400e79a},
doi = {10.1016/j.ces.2022.118371},
issn = {92509},
year = {2024},
date = {2024-03-05},
journal = {Chemical Engineering Science},
volume = {267},
number = {118371},
abstract = {The in-vitro reproduction of the real physiological conditions that occur along the gastrointestinal (GI) tract would be the optimum for the dissolution and release testing of pharmaceutical formulations for oral intake. In this study a method for the automated reproduction of the real pH conditions that occurs in the gastric cavity and a device that mimics the same forces exerted by the internal walls of the stomach are presented. Commercial immediate-release carbamazepine tablets were tested in conventional (USP II) and unconventional apparatuses. The gastric pH and the fluid dynamic conditions are factors to be carefully considered since they both affect the drug release profiles. Finally, a PBPK model was used to predict the evolution of plasma drug concentrations knowing the experimental in-vitro GI release behavior. It was found that, for immediate-release carbamazepine tablet, the gastric drug release does not have a major impact on the plasmatic drug concentration.},
keywords = {case study, drug release, in-vitro stomach},
pubstate = {published},
tppubtype = {article}
}
The in-vitro reproduction of the real physiological conditions that occur along the gastrointestinal (GI) tract would be the optimum for the dissolution and release testing of pharmaceutical formulations for oral intake. In this study a method for the automated reproduction of the real pH conditions that occurs in the gastric cavity and a device that mimics the same forces exerted by the internal walls of the stomach are presented. Commercial immediate-release carbamazepine tablets were tested in conventional (USP II) and unconventional apparatuses. The gastric pH and the fluid dynamic conditions are factors to be carefully considered since they both affect the drug release profiles. Finally, a PBPK model was used to predict the evolution of plasma drug concentrations knowing the experimental in-vitro GI release behavior. It was found that, for immediate-release carbamazepine tablet, the gastric drug release does not have a major impact on the plasmatic drug concentration. |
Caccavo, Diego; Iannone, Marco; Barba, Anna Angela; Lamberti, Gaetano Impact of drug release in USP II and in-vitro stomach on pharmacokinetic: The case study of immediate-release carbamazepine tablets Journal Article Chemical Engineering Science, 267 , 2023. Abstract | Links | BibTeX | Tags: Drug Delivery Systems, Mathematical modeling, Pharmacokinetics @article{Caccavo2023,
title = {Impact of drug release in USP II and in-vitro stomach on pharmacokinetic: The case study of immediate-release carbamazepine tablets},
author = {Diego Caccavo and Marco Iannone and Anna Angela Barba and Gaetano Lamberti},
url = {https://www.sciencedirect.com/science/article/pii/S0009250922009563},
doi = {10.1016/j.ces.2022.118371},
year = {2023},
date = {2023-03-05},
journal = {Chemical Engineering Science},
volume = {267},
abstract = {The in-vitro reproduction of the real physiological conditions that occur along the gastrointestinal (GI) tract would be the optimum for the dissolution and release testing of pharmaceutical formulations for oral intake. In this study a method for the automated reproduction of the real pH conditions that occurs in the gastric cavity and a device that mimics the same forces exerted by the internal walls of the stomach are presented. Commercial immediate-release carbamazepine tablets were tested in conventional (USP II) and unconventional apparatuses. The gastric pH and the fluid dynamic conditions are factors to be carefully considered since they both affect the drug release profiles. Finally, a PBPK model was used to predict the evolution of plasma drug concentrations knowing the experimental in-vitro GI release behavior. It was found that, for immediate-release carbamazepine tablet, the gastric drug release does not have a major impact on the plasmatic drug concentration.},
keywords = {Drug Delivery Systems, Mathematical modeling, Pharmacokinetics},
pubstate = {published},
tppubtype = {article}
}
The in-vitro reproduction of the real physiological conditions that occur along the gastrointestinal (GI) tract would be the optimum for the dissolution and release testing of pharmaceutical formulations for oral intake. In this study a method for the automated reproduction of the real pH conditions that occurs in the gastric cavity and a device that mimics the same forces exerted by the internal walls of the stomach are presented. Commercial immediate-release carbamazepine tablets were tested in conventional (USP II) and unconventional apparatuses. The gastric pH and the fluid dynamic conditions are factors to be carefully considered since they both affect the drug release profiles. Finally, a PBPK model was used to predict the evolution of plasma drug concentrations knowing the experimental in-vitro GI release behavior. It was found that, for immediate-release carbamazepine tablet, the gastric drug release does not have a major impact on the plasmatic drug concentration. |
Iannone, Marco; Caccavo, Diego; Barba, Anna Angela; Lamberti, Gaetano A low-cost push–pull syringe pump for continuous flow applications Journal Article HardwareX, 11 , 2022. Abstract | Links | BibTeX | Tags: Instrumentation and control, New devices, Prototyping @article{Iannone2022,
title = {A low-cost push\textendashpull syringe pump for continuous flow applications},
author = {Marco Iannone and Diego Caccavo and Anna Angela Barba and Gaetano Lamberti},
url = {https://www.sciencedirect.com/science/article/pii/S2468067222000402},
doi = {10.1016/j.ohx.2022.e00295},
year = {2022},
date = {2022-04-01},
journal = {HardwareX},
volume = {11},
abstract = {Syringe pumps are very useful tools to ensure a constant and pulsation-free flow rate, however usability is limited to batch processes. This article shows an open-source method for manufacturing a push pull syringe pump, valid for continuous processes, easy to build, low-cost and programmable.
The push\textendashpull syringe pump (PPSP) is driven by an Arduino nano ATmega328P which controls a NEMA 17 in microstepping via the A4988 stepper driver. The Push-Pull Syringe Pump setup is configurable by means of a digital encoder and an oled screen programmed using C ++. A PCB was designed and built to facilitate the assembly of the device. The continuous flow is guaranteed by four non-return valves and a dampener, which has been sized and optimized for use on this device. Finally, tests were carried out to evaluate the flow rates and the linearity of the flow. The device is achievable with a cost of less than 100 €.},
keywords = {Instrumentation and control, New devices, Prototyping},
pubstate = {published},
tppubtype = {article}
}
Syringe pumps are very useful tools to ensure a constant and pulsation-free flow rate, however usability is limited to batch processes. This article shows an open-source method for manufacturing a push pull syringe pump, valid for continuous processes, easy to build, low-cost and programmable.
The push–pull syringe pump (PPSP) is driven by an Arduino nano ATmega328P which controls a NEMA 17 in microstepping via the A4988 stepper driver. The Push-Pull Syringe Pump setup is configurable by means of a digital encoder and an oled screen programmed using C ++. A PCB was designed and built to facilitate the assembly of the device. The continuous flow is guaranteed by four non-return valves and a dampener, which has been sized and optimized for use on this device. Finally, tests were carried out to evaluate the flow rates and the linearity of the flow. The device is achievable with a cost of less than 100 €. |
Barba, Anna Angela; Dalmoro, Annalisa; Bochicchio, Sabrina; Simone, Veronica De; Caccavo, Diego; Iannone, Marco; Lamberti, Gaetano Engineering approaches for drug delivery systems production and characterization Journal Article International Journal of Pharmaceutics, 2020. Abstract | Links | BibTeX | Tags: drug delivery, Hydrogel, Innovation in Europe, Microvectors, Modeling, Nanovectors @article{Barba2020,
title = {Engineering approaches for drug delivery systems production and characterization},
author = {Anna Angela Barba and Annalisa Dalmoro and Sabrina Bochicchio and Veronica De Simone and Diego Caccavo and Marco Iannone and Gaetano Lamberti},
url = {https://www.sciencedirect.com/science/article/pii/S0378517320302519},
doi = {10.1016/j.ijpharm.2020.119267},
year = {2020},
date = {2020-03-31},
journal = {International Journal of Pharmaceutics},
abstract = {To find and to test the therapeutic effectiveness (and the limited adverse effects) of a new drug is a long and expensive process. It has been estimated a period of ten years and an expense of the order of one billion USD are required. Meanwhile, even if a promising molecule has been identified, there is the need for operative methods for its delivery. The extreme case is given by gene therapy, in which molecules with tremendous in-vitro efficacy cannot be used in practice because of the lack in useful vector systems to deliver them. Most of the recent efforts in pharmaceutical sciences are focused on the development of novel drug delivery systems (DDSs).
In this review, the work done recently on the development and testing of novel DDSs, with particular emphasis on the results obtained by European research, is summarized. In the first section of the review the DDSs are analyzed accordingly with their scale-size: starting from nano-scale (liposomes, nanoparticles), up to the micro-scale (microparticles), until the macroscopic world is reached (granules, matrix systems). In the following two sections, non-conventional testing methods (mechanical methods and bio-relevant dissolution methods) are presented; at last, the importance of mathematical modeling to describe drug release and related phenomena is reported.},
keywords = {drug delivery, Hydrogel, Innovation in Europe, Microvectors, Modeling, Nanovectors},
pubstate = {published},
tppubtype = {article}
}
To find and to test the therapeutic effectiveness (and the limited adverse effects) of a new drug is a long and expensive process. It has been estimated a period of ten years and an expense of the order of one billion USD are required. Meanwhile, even if a promising molecule has been identified, there is the need for operative methods for its delivery. The extreme case is given by gene therapy, in which molecules with tremendous in-vitro efficacy cannot be used in practice because of the lack in useful vector systems to deliver them. Most of the recent efforts in pharmaceutical sciences are focused on the development of novel drug delivery systems (DDSs).
In this review, the work done recently on the development and testing of novel DDSs, with particular emphasis on the results obtained by European research, is summarized. In the first section of the review the DDSs are analyzed accordingly with their scale-size: starting from nano-scale (liposomes, nanoparticles), up to the micro-scale (microparticles), until the macroscopic world is reached (granules, matrix systems). In the following two sections, non-conventional testing methods (mechanical methods and bio-relevant dissolution methods) are presented; at last, the importance of mathematical modeling to describe drug release and related phenomena is reported. |