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  1. Delta-mannitol to enable continuous twin-screw granulation of a highly dosed, poorly compactable formulation

    23 Jul 2024 | Contributor(s): Vanhoorne, V., Almey, R., De Beer, T., Vervaet, C.

    In current study, it was investigated if the moisture-mediated polymorphic transition from δ- to β-mannitol during twin screw granulation (TSG) also took place in high drug loaded formulations and if the specific granule morphology associated with the polymorphic transition could enable tableting...

  2. Control oriented modeling of twin-screw granulation in the ConsiGmaTM-25 production plant

    09 Jul 2024 | Peer-reviewed journal | Contributor(s): Johannes Khinast, Martin Horn, Jakob Rehrl, Selma Celikovic, Johannes Poms

    ConsiGmaTM-25 is a continuous production plant integrating a twin-screw granulation, fluid bed drying, granule conditioning, and a tableting unit. The particle size distribution (PSD), active pharmaceutical ingredient (API) content, and liquid content of wet granules after twin-screw...

  3. Videometric mass flow control: A new method for real-time measurement and feedback control of powder micro-feeding based on image analysis

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Madarasz, L, Kote, AGyurkes, M, Farkas, A, Hambalko, B, Pataki, H, Fulop, G, Marosi, G, Lengyel, L, Casian, T, Csorba, K, Nagy, ZK

    The present paper reports the first monitoring and control of ultra-low dose powder feeding using a camera image-based mass flow measurement system. Caffeine was fed via a single-screw microfeeder as a model active pharmaceutical ingredient (API). The mass, mass flow and sizes of the particles...

  4. Visualization and understanding of the granulation liquid mixing and distribution during continuous twin screw granulation using NIR chemical imaging

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Vercruysse, Jurgen, Toiviainen, Maunu, Fonteyne, Margot, Helkimo, Niko, Ketolainen, Jarkko, Juuti, Mikko, Delaet, Urbain, Van Assche, Ivo, Remon, Jean Paul, Vervaet, Chris, De Beer, Thomas

    Over the last decade, there has been increased interest in the application of twin screw granulation as a continuous wet granulation technique for pharmaceutical drug formulations. However, the mixing of granulation liquid and powder material during the short residence time inside the screw...

  5. Using a material property library to find surrogate materials for pharmaceutical process development

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Escotet-Espinoza, MS, Moghtadernejad, SScicolone, J, Wang, YF, Pereira, G, Schafer, E, Vigh, T, Klingeleers, D, Ierapetritou, M, Muzzio, FJ

    Material properties are known to have a significant impact on pharmaceutical manufacturing performance, particularly for solid product processes. Evaluating the performance of a specific material, for example an active pharmaceutical ingredient or excipient, is critical during development stages...

  6. Using residence time distribution in pharmaceutical solid dose manufacturing–A critical review

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Bhalode, Pooja, Tian, Huayu Gupta, Shashwat Razavi, Sonia M Roman-Ospino, Andres Talebian, Shahrzad Singh, Ravendra Scicolone, James V Muzzio, Fernando J, Ierapetritou, Marianthi

    While continuous manufacturing (CM) of pharmaceutical solid-based drug products has been shown to be advantageous for improving the product quality and process efficiency in alignment with FDA’s support of the quality-by-design paradigm (Lee, 2015; Ierapetritou et al., 2016; Plumb, 2005; Schaber,...

  7. Using online mass spectrometry to predict the end point during drying of pharmaceutical products

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Dodda, Aditya G., Saranteas, Kostas, Henson, Michael A.

    Drying of active pharmaceutical ingredients (APIs) is an energy-intensive process that is often a manufacturing bottleneck due to the relatively long processing times. A key objective is the ability to determine the drying end point, the time at which all solvent has been evaporated from the...

  8. Use of the channel fill level in defining a design space for twin screw wet granulation

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Gorringe, L. J., Kee, G. S., Saleh, M. F., Fa, N. H., Elkes, R. G.

    Twin screw wet granulation is a key process in the continuous manufacture of oral solid dosage forms. Previous Research Article has qualitatively suggested that the channel fill level influences the granules produced. In this paper a quantitative measure of the total volumetric fraction of the...

  9. TPLS as predictive platform for twin-screw wet granulation process and formulation development

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Ryckaert, A., Van Hauwermeiren, D., Dhondt, J., De Man, A., Funke, A., Djuric, D., Vervaet, C., Nopens, I., De Beer, T.

    In recent years, the interest in continuous manufacturing techniques, such as twin-screw wet granulation, has increased. However, the understanding of the influence of the combination of raw material properties and process settings upon the granule quality attributes is still limited. In this...

  10. Transfer from High-Shear Batch to Continuous Twin Screw Wet Granulation: A Case Study in Understanding the Relationship Between Process Parameters and Product Quality Attributes

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Beer, Paul, Wilson, David, Huang, Zhenyu, De Matas, Marcel

    A twin screw to high-shear batch granulation technology switch was evaluated for a pharmaceutical development project. Differences in granule (particle size distribution and porosity) and tablet (dissolution) quality attributes were analysed for both continuous and batch technologies. Liquid to...

  11. Twin screw granulation - review of current progress

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Thompson, M. R.

    Twin screw granulation (TSG) is a new process of interest to the pharmaceutical community that can continuously wet granulate powders, doing so at lower liquid concentrations and with better product consistency than found by a high shear batch mixer. A considerable body of Research Article has...

  12. Towards a novel continuous HME-Tableting line: Process development and control concept

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Sacher, Stephan, Celikovic, Selma, Rehrl, Jakob, Poms, Johannes, Kirchengast, Martin, Kruisz, Julia, Sipek, Martin, Salar-Behzadi, Sharareh, Berger, Hannes, Stark, Gerald, Horn, Martin, Khinast, Johannes G.

    The objective of this study was to develop a novel closed-loop controlled continuous tablet manufacturing line, which first uses hot melt extrusion (HME) to produce pellets based on API and a polymer matrix. Such systems can be used to make complex pharmaceutical formulations, e.g., amorphous...

  13. The Influence of Equipment Design and Process Parameters on Granule Breakage in a Semi-Continuous Fluid Bed Dryer after Continuous Twin-Screw Wet Granulation

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Ryckaert, Alexander, Ghijs, Michael, Portier, Christoph, Djuric, Dejan, Funke, Adrian, Vervaet, Chris, De Beer, Thomas

    The drying unit of a continuous from-powder-to-tablet manufacturing line based on twin-screw granulation (TSG) is a crucial intermediate process step to achieve the desired tablet quality. Understanding the size reduction of pharmaceutical granules before, during, and after the fluid bed drying...

  14. The effect of screw configuration and formulation variables on liquid requirements and granule quality in a continuous twin screw wet granulation process

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Vandevivere, L., Van Wijmeersch, E., Hausler, O., De Beer, T., Vervaet, C., Vanhoorne, V.

    The effect of two screw configurations with varying stagger angle was evaluated on the liquid amount required to produce good quality granules for a highly (mannitol-based) and a poorly (DCP-based) soluble formulation containing different binders. It is generally known that the use of a higher...

  15. The impact of channel fill level on internal forces during continuous twin screw wet granulation

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Torrecillas, Carlota Mendez, Gorringe, Lee J., Rajoub, Nazer, Robertson, John, Elkes, Richard G., Lamprou, Dimitrios A., Halbert, Gavin W

    The forces experienced by the particles inside a twin screw granulator (TSG) are one of the most difficult parameters to measure quantitatively. However, it is possible to perform accurately this measurement through the use of dye containing calibrated microencapsulated sensors (LAMES) whose...

  16. The Changing Face of Process Development & Chemical Manufacturing - A View from the Regulators on Continuous Manufacturing

    09 Jun 2023 | Website | Contributor(s): Wiles, Charolotte

    Industry wide there is a drive for resource efficiency and flexibility, to adapt quickly in what is increasingly becoming a volatile, changing marketplace. As the ‘patent cliff’ looms for many high-volume API’s, there is also a shift away from blockbusters towards lower volume, higher potency...

  17. System-wide hybrid MPC–PID control of a continuous pharmaceutical tablet manufacturing process via direct compaction

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Singh, Ravendra, Ierapetritou, Marianthi, Ramachandran, Rohit

    The next generation of QbD based pharmaceutical products will be manufactured through continuous processing. This will allow the integration of online/inline monitoring tools, coupled with an efficient advanced model-based feedback control systems, to achieve precise control of process variables,...

  18. Switching from batch to continuous granulation: A case study of metoprolol succinate ER tablets

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Kotamarthy, Lalith, Feng, Xin, Alayoubi, Alaadin, Bolla, Pradeep Kumar, Ramachandran, Rohit, Ashraf, Muhammad, O'Connor, Thomas, Zidan, Ahmed

    Continuous manufacturing (CM) has been used to produce several immediate release drug products. No extended-release (ER) product manufactured employing CM technology has been approved yet. This study investigated the critical aspects of switching from the batch mode of high shear granulation to...

  19. Solvothermal Crystallization Kinetics and Control of Crystal Size Distribution of MOF-808 in a Continuous Flow Reactor

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Bagi, Sujay D., Myerson, Allan S. Román-Leshkov, Yuriy, Román-Leshkov, Yuriy

    A fundamental understanding of the crystallization pathways for metal-organic frameworks (MOFs) allows for exploring the untapped combinatorial space of the organic and inorganic building units, creating possibilities to synthesize highly crystalline frameworks with desired physicochemical...

  20. Simplified end-to-end continuous manufacturing by feeding API suspensions in twin-screw wet granulation

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Schmidt, A, de, Waard, HMoll, KP, Kleinebudde, P, Krumme, M

    This study focussed on investigating the coupling of continuous manufacturing of drug substance and continuous manufacture of drug product. An important step in such an integrated end-to-end continuous manufacturing was envisioned by dosing the API as suspension into a twin-screw wet granulation...

  21. Simplified formulations with high drug loads for continuous twin-screw granulation

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Meier, R., Thommes, M., Rasenack, N., Krumme, M., Moll, K. -P., Kleinebudde, P.

    As different batches of the same excipients will be intermixed during continuous processes, the traceability of batches is complicated. Simplified formulations may help to reduce problems related to batch intermixing and traceability. Twin-screw granulation with subsequent tableting was used to...

  22. Selective crystallization of the metastable α-form of L-glutamic acid using concentration feedback control

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Kee, Nicholas C.S., Tan, Reginald B.H. Braatz, Richard D., Braatz, Richard D.

    A systematic methodology is presented for the selective crystallization of the metastable form of a monotropic dimorph, L-glutamic acid, for batch cooling crystallization. Attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy coupled with chemometrics was used to...

  23. Sampling and Analysis in Flow: The Keys to Smarter, More Controllable, and sustainable Fine-Chemical Manufacturing

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Morin, Mathieu, Zhang, Wenyao, Mallik, Debasis, Organ, Michael G

    Process analytical technology (PAT) is a system designed to help chemists better understand and control manufacturing processes. PAT systems operate through the combination of analytical devices, reactor control elements, and mathematical models to ensure the quality of the final product through...

  24. Robust nonlinear model predictive control of batch processes

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Nagy, Zoltan K., Braatz, Richard D.

    NMPC explicitly addresses constraints and nonlinearities during the feedback control of batch processes. This NMPC algorithm also explicitly takes parameter uncertainty into account in the state estimation and state feedback controller designs. An extended Kalman filter estimates the process...

  25. Residence Time Distribution (RTD)-Based Control System for Continuous Pharmaceutical Manufacturing Process

    09 Jun 2023 | Peer-reviewed journal | Contributor(s): Bhaskar, Aparajith, Singh, Ravendra