Continuous Manufacturing Knowledge Center

Development of a high-fidelity digital twin using the discrete element method for a continuous direct compression process. Part 1. Calibration workflow

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24 Oct 2024 | Peer-reviewed journal | Contributor(s): Peter Toson, Marko Matić, Theresa Hörmann-Kincses, Michela Beretta, Jakob Rehrl, Johannes Poms, Thomas O’Connor, Abdollah Koolivand, Geng Tian, Scott M. Krull, Johannes G. Khinast, Dalibor Jajcevic, Johan Remmelgas

In this work, a high-fidelity digital twin was developed to support the design and testing of control strategies for drug product manufacturing via direct compression. The high-fidelity digital twin platform was based on typical pharmaceutical equipment, materials, and direct compression...

Continuous Processing. Continuous Evolution

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08 Oct 2024 | Magazine | Contributor(s): Douglas Hausner

Continuous processing for small molecule products has been a hot topic for years, but where does the industry stand with it today? We speak with Doug Hausner, Senior Manager, Continuous Manufacturing, Oral Solid Dose, Pharma Services at Thermo Fisher Scientific, to find out.

Continuous micro feeding and mixing of solid dosage forms under vibrational excitation

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08 Oct 2024 | Peer-reviewed journal | Contributor(s): Haifeng Lu, Liang Zhang, Hui Du, Xiaolei Guo, Haifeng Liu

Continuous manufacturing has intrigued many researchers in the pharmaceutical industry in the post-COVID-19 world. We experimentally studied the discharge characteristics of pharmaceutical excipients under vibrational excitation. The successful accurate dosing and filling of powders at fill...

Systematic investigation of the impact of screw elements in continuous wet granulation

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10 Sep 2024 | Peer-reviewed journal | Contributor(s): Katharina Kiricenko, Peter Kleinebudde, Robin Meier

Twin-screw wet granulation (TSG) is a continuous manufacturing technique either for granules as final dosage form or as an intermediate before tableting or capsule filling. A comprehensive process understanding is required to implement TSG, considering various parameters influencing granule and...

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

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23 Jul 2024 | Peer-reviewed journal | 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...

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

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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...

Improvement of a pharmaceutical powder mixing process in a tote blender via DEM simulations

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04 Jun 2024 | Peer-reviewed journal | Contributor(s): Benedict Benque, Luca Orefice, Thomas Forgber, Matthias Habeler, Beate Schmid, Johan Remmelgas, Johannes Khinast

An industrial-scale pharmaceutical powder blending process was studied via discrete element method (DEM) simulations. A DEM model of two active pharmaceutical ingredient (API) components and a combined excipient component was calibrated by matching the simulated response in a dynamic angle of...

A modified Kushner-Moore approach to characterising small-scale blender performance impact on tablet compaction

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03 Jun 2024 | Peer-reviewed journal | Contributor(s): Hikaru G. Jolliffe, Martin Prostredny, Carlota Mendez Torrecillas, Ecaterina Bordos, Collette Tierney, Ebenezer Ojo, Richard Elkes, Gavin Reynolds, Yunfei Li Song, Bernhard Meir, Sara Fathollahi, John Robertson

Continuous Direct Compaction (CDC) has emerged as a promising route towards producing solid dosage forms while reducing material, development time and energy consumption. Understanding the response of powder processing unit operations, especially blenders, is crucial. There is a substantial body...

Continuous Flow Intensification for the Synthesis of High-Purity Warfarin

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10 May 2024 | Peer-reviewed journal | Contributor(s): Silva-Brenes, Diana V., Reyes-Vargas, Stephanie K., Duconge, Jorge, Vlaar, Cornelis, Stelzer, Torsten, Monbaliu, Jean-Christophe M.

While racemic warfarin was initially commercialized as a rodenticide, it has become the most prescribed anticoagulant drug for prevention of blood clots and is part of the World Health Organization’s list of essential medicines. The synthesis of warfarin appears straightforward, consisting of a...

Rapid production of the anaesthetic mepivacaine through continuous, portable technology

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24 Apr 2024 | Peer-reviewed journal | Contributor(s): Díaz-Kruik, Pablo, Paradisi, Francesca

Local anaesthetics such as mepivacaine are key molecules in the medical sector, so ensuring their supply chain is crucial for every health care system. Rapid production of mepivacaine from readily available commercial reagents and (non-dry) solvents under safe conditions using portable,...

Multi-step Flow Synthesis of the Anthelmintic Drug Praziquantel

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24 Apr 2024 | Peer-reviewed journal | Contributor(s): Phull, Manjinder Singh, Bohara, Chander Singh, Gundla, Rambabu, Mainkar, Prathama S., Jadav, Surender Singh

Praziquantel (PZQ; Brand name: Biltricide) is categorized as an anthelminthic drug, and it is used for the treatment of Schistosomiasis and other parasitic infections. The World Health Organization (WHO) has classified it as one of the essential and emergency medicines needed across the globe....

Continuous Flow-Facilitated CB2 Agonist Synthesis, Part 2: Cyclization, Chlorination, and Amination

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24 Apr 2024 | Peer-reviewed journal | Contributor(s): Prieschl, Michael, Sagmeister, Peter, Moessner, Christian, Sedelmeier, Joerg, Williams, Jason D., Kappe, C. Oliver

A new route to the cannabinoid receptor type 2 agonist, RG7774, has been developed circumventing an alkylation with poor regioselectivity as the final step. In the new synthetic route, this side chain is incorporated from the beginning. In this article, the development of the final four...

A Continuous Process for Manufacturing Apremilast. Part I: Process Development and Intensification by Utilizing Flow Chemistry Principles

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24 Apr 2024 | Peer-reviewed journal | Contributor(s): Hsieh, Hsiao-Wu, Griffin, Daniel J., Ananthoji, Padmini, Avci, Nadide Hazal, Brown, Derek B., Ericson, Ari, Fostinis, James D., Irfan, Muhammad, Langille, Neil, Lovette, Michael A., Murray, James I., Spada, Simone, Thiel, Oliver R., Aiello, Frankie, Daou, Joseph, Goudas-Salomon, Nicole, Pan, Ende, Sarkar, Nandini, Wimalasinghe, Rasangi, Wu, Zufan Steven, Zeng, Alicia, Beaver, Matthew G., Cohen, Carolyn M.

Herein, we report the development of an integrated continuous manufacturing (CM) process for the penultimate step in the synthesis of apremilast, the drug substance (DS) of the commercial product Otezla. This development effort was motivated by the desire to create an alternative manufacturing...

Influence of refilling on dosing accuracy of loss-in-weight powder feeders in continuous manufacturing

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19 Feb 2024 | Peer-reviewed journal | Contributor(s): Jochen Thies, Peter Kleinebudde, Fabiola N. Santamaría Alvarez

Continuous manufacturing is a novel concept to produce high quality drug products. The manufacture of solid dosage forms starts with the feeding of materials, which is consider a critical step because it could have a high influence on the quality of the final product. Therefore, this unit...

MOOC I Blending - Flow and Mixing Regime

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