-
A Combined Feed-Forward/Feed-Back Control System for a QbD-Based Continuous Tablet Manufacturing Process
09 Jun 2023 | Contributor(s): Singh, Ravendra, Muzzio, Fernando J, Ierapetritou, Marianthi, Ramachandran, Rohit
Continuous pharmaceutical manufacturing together with PAT (Process Analytical Technology) provides a suitable platform for automatic control of the end product quality as desired by QbD (quality by design)-based efficient manufacturing. The precise control of the quality of the pharmaceutical...
-
A design aid for crystal growth engineering
09 Jun 2023 | Contributor(s): Li, Jinjin, Tilbury, Carl J. Kim, Seung Ha, Doherty, Michael F.
With the highly competitive development of chemical and pharmaceutical industries, mastering crystal growth is becoming increasingly necessary. Modern industrial manufacturers place high importance on the ability to grow crystals with a specific habit using tailored operating conditions. A...
-
A Digital Twin for Process Optimisation in Pharmaceutical Manufacturing
09 Jun 2023 | Contributor(s): Gerogiorgis, Dimitrios I., Castro-Rodriguez, Daniel
Organic synthesis is a critical step in producing any Active Pharmaceutical Ingredient (API): it encompasses a series of organic (mostly catalytic) reactions and separations, whose purpose is to arrive at a solution of a target molecule, which must then undergo crystallisation for purification,...
-
A fast moving horizon estimation algorithm based on nonlinear programming sensitivity
09 Jun 2023 | Contributor(s): Zavala, Victor M, Laird, Carl D, Biegler, Lorenz T
Moving horizon estimation (MHE) is an efficient optimization-based strategy for state estimation. Despite the attractiveness of this method, its application in industrial settings has been rather limited. This has been mainly due to the difficulty to solve, in real-time, the associated dynamic...
-
A flowsheet model for the development of a continuous process for pharmaceutical tablets: An industrial perspective
09 Jun 2023 | Contributor(s): Garcia-Munoz, Salvador, Butterbaugh, Adam Leavesley, Ian Manley, Leo Francis, Slade, David, Bermingham, Sean
A dynamic model of a continuous direct compression process for pharmaceutical tablets is presented. The objective is to assess the impact of the variability from the feeder system on the concentration of drug in the powder in the feed frame of a tablet press. The model is based on principles of...
-
A framework for model reliability and estimability analysis of crystallization processes with multi-impurity multi-dimensional population balance models
09 Jun 2023 | Contributor(s): Fysikopoulos, D, Benyahia, B Borsos, A Nagy, Z K, Rielly, C D
The development of reliable mathematical models for crystallization processes may be very challenging due the complexity of the underlying phenomena, the inherent Population Balance Models (PBMs) and the large number of parameters that need to be identified from experimental data. Due to the poor...
-
A Hybrid MPC-PID Control System Design for the Continuous Purification and Processing of Active Pharmaceutical Ingredients
09 Jun 2023 | Contributor(s): Sen, M, Singh, R, Ramachandran, R
In this work, a hybrid MPC (model predictive control)-PID (proportional-integral-derivative) control system has been designed for the continuous purification and processing framework of active pharmaceutical ingredients (APIs). The specific unit operations associated with the purification and...
-
A hybrid neural network-first principles approach to process modeling
09 Jun 2023 | Contributor(s): Psichogios, Dimitris C., Ungar, Lyle H.
A hybrid neural networkâ€first principles modeling scheme is developed and used to model a fedbatch bioreactor. The hybrid model combines a partial first principles model, which incorporates the available prior knowledge about the process being modeled, with a neural network which...
-
A model-based framework for design and analysis of PAT systems
09 Jun 2023 | Workshop | Contributor(s): Gani, Rafiqul, Singh, Ravendra, Gernaey, Krist
-
A multi-scale hybrid CFD-DEM-PBM description of a fluid-bed granulation process
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Sen, Maitraye, Barrasso, Dana Singh, Ravendra, Ramachandran, Rohit
In this study, a hybrid multi-scale model has been developed for a continuous fluid bed wet granulation process by dynamically coupling computational fluid dynamics (CFD) with a discrete element model (DEM) and population balance model (PBM). In this process, the granules are formed by spraying...
-
A New Software Framework for Implementing Crystal Growth Models to Materials of Any Crystallographic Complexity
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Zhao, Yongsheng, Tilbury, Carl J. Landis, Steven Sun, Yuanyuan, Li, Jinjin, Zhu, Peng, Doherty, Michael F.
To continue the realization of new therapeutics, a more diverse range of solid forms is being considered. Synthetic modalities are broadening beyond simple organic molecules to more complicated structures, including organic salts, cocrystals, and solvates. As in all crystalline applications,...
-
A Novel Integrated Workflow for Isolation Solvent Selection Using Prediction and Modeling
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Ottoboni, S, Wareham, BVassileiou, A, Robertson, M, Brown, CJ, Johnston, B, Price, CJ
A predictive tool was developed to aid process design and to rationally select optimal solvents for isolation of active pharmaceutical ingredients. The objective was to minimize the experimental work required to design a purification process by (i) starting from a rationally selected...
-
A PAT-based qualification of pharmaceutical excipients produced by batch or continuous processing
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Hertrampf A., Müller H., Menezes J.C., Herdling T.
Pharmaceutical excipients have an influence on the main requirements for medicinal products (viz., quality, safety and efficacy) but also on their manufacturability. During product lifecycle it may become necessary to introduce minor changes (e.g., to continuously improve it) or major changes in...
-
A Perspective on Quality by Design: A Preclinical Opportunity
28 Mar 2024 | Document | Contributor(s): Ajaz S. Hussain
-
A retrofit strategy to achieve “Fast, Flexible, Future (F3)” pharmaceutical production processes
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Singh, Ravendra, Rozada-Sanchez, Raquel Wrate, Tim Muller, Frans Gernaey, Krist V Gani, Rafiqul, Woodley, John M
n the work reported here, a substrates adoption methodology for a series of similar substrates has been developed as part of a retrofit strategy. The objective is to achieve “fast, flexible and future” pharmaceutical production processes by adapting a generic modular process-plant template....
-
A review of PAT strategies in secondary solid oral dosage manufacturing of small molecules
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Laske, Stephan, Paudel, Amrit, Scheibelhofer, Otto, Sacher, Stephan, Hoermann, Theresa, Khinast, Johannes, Kelly, Adrian, Rantannen, Jukka, Korhonen, Ossi, Stauffer, Fanny, De Leersnyder, Fien, De Beer, Thomas, Mantanus, Jerome, Chavez, Pierre-Francois, Thoorens, Benjamin, Ghiotti, Patrizia, Schubert, Martin, Tajarobi, Pirjo, Haeffler, Gunnar, Lakio, Satu, Fransson, Magnus, Sparen, Anders, Abrahmsen-Alami, Susanna, Folestad, Staffan, Funke, Adrian, Backx, Ivo, Kavsek, Barbara, Kjell, Francois, Michaelis, Marc, Page, Trevor, Palmer, John, Schaepman, Alexander, Sekulic, Sonja, Hammond, Steve, Braun, Birgit, Colegrove, Brenda
Pharmaceutical solid oral dosage product manufacturing is a well-established, yet revolutionizing area. To this end, process analytical technology (PAT) involves interdisciplinary and multivariate (chemical, physical, microbiological and mathematical) methods for material (e.g. materials,...
-
A Shared Vision for Pharmaceutical Development and Manufacturing in the 21st Century: Contributions of the PAT Initiative
28 Mar 2024 | Document | Contributor(s): Ajaz S. Hussain
-
A Stochastic Population Balance Equation Model for Nucleation and Growth of Crystals with Multiple Polymorphs
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Maggioni, Giovanni, Mazzotti, Marco
Understanding polymorph crystallization is important due to the different properties, such as bioavailability or crystal shape, exhibited by the different crystal forms. In this work, we present a model, based on population balance equations, describing the unseeded crystallization by cooling of...
-
A systematic computer aided framework for design and analysis of PAT systems
09 Jun 2023 | Workshop | Contributor(s): Gernaey, Krist, Singh, Ravendra, Gani, Rafiqul
Not available
-
A systematic framework for onsite design and implementation of a control system in a continuous tablet manufacturing process
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Singh, Ravendra, Sahay, Abhishek Muzzio, Fernando Ierapetritou, Marianthi, Ramachandran, Rohit
A novel manufacturing strategy based on continuous processing integrated with online/inline monitoring tools coupled with an advanced control system is highly desired for efficient Quality by Design (QbD)-based pharmaceutical manufacturing. A control system ensures the predefined end product...
-
A Systematic Framework for the Design and Implementation of Sensing and Control Architecture for a Continuous Pharmaceutical Manufacturing Plant
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Singh, Ravendra, Muzzio, Fernando J Ierapetritou, Marianthi, Ramachnadran, Rohit
The continuous pharmaceutical manufacture (CPM) plant and control architecture developed earlier is currently being widely implemented in industries [1,2]. CPM indeed provides an appropriate platform to implement suitable monitoring and control architecture, to improve product quality, and to...
-
A systematic framework to monitor mulling processes using Near Infrared spectroscopy
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Wu, Suyang, Panikar, Savitha S Singh, Ravendra Zhang, Jun Glasser, Benjamin, Ramachandran, Rohit
The optimal design of sensor location and setup is essential to ensure the accuracy and precision of in-line process monitoring of water/moisture content. This manuscript presents a systematic framework of using Near Infrared (NIR) spectroscopy to monitor moisture content in an alumina mulling...
-
A systematic reactor design approach for the synthesis of active pharmaceutical ingredients
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Emenike, VN, Schenkendorf, R, Krewer, U
Today's highly competitive pharmaceutical industry is in dire need of an accelerated transition from the drug development phase to the drug production phase. At the heart of this transition are chemical reactors that facilitate the synthesis of active pharmaceutical ingredients (APIs) and whose...
-
A Validated Model for Design and Evaluation of Control Architectures for a Continuous Tablet Compaction Process
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Nunes de Barros, Fernando, Bhaskar, Aparajith, Singh, Ravendra
The systematic design of an advanced and efficient control strategy for controlling critical quality attributes of the tablet compaction operation is necessary to increase the robustness of a continuous pharmaceutical manufacturing process and for real time release. A process model plays a very...
-
Accelerating biologics manufacturing by modeling or: Is Approval under the QbD and PAT approaches demanded by authorities acceptable without a digital-twin?
09 Jun 2023 | Peer-reviewed journal | Contributor(s): Zobel-Roos, Steffen, Schmidt, Axel Mestmäcker, Fabian Mouellef, Mourad, Huter, Maximilian, Uhlenbrock, Lukas, Kornecki, Martin, Lohmann, Lara, Ditz, Reinhard, Strube, Jochen
Innovative biologics, including cell therapeutics, virus-like particles, exosomes, recombinant proteins, and peptides, seem likely to substitute monoclonal antibodies as the main therapeutic entities in manufacturing over the next decades. This molecular variety causes a growing need for a...