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Adedeji AO, Zhong F, Getz JA, Zhong Z, Halpern W. Neutropenia in Cynomolgus Monkeys With Anti-Drug Antibodies Associated With Administration of Afucosylated Humanized Monoclonal Antibodies. Toxicol Pathol 2022; 50:910-919. [PMID: 36329562 PMCID: PMC9806483 DOI: 10.1177/01926233221131510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Removal of the core fucose from the Fc region of humanized monoclonal antibodies (afucosylated antibodies) enhances their antibody-dependent cell cytotoxicity activities in killing cancer cells. Based on the authors' experience and literature, administrations of afucosylated antibodies have been associated with neutropenia in cynomolgus monkeys. However, in a recent general toxicology study conducted with an afucosylated antibody in cynomolgus monkeys, transient neutropenia was observed and correlated with the emergence of anti-drug antibodies (ADAs) in the affected animals. To further explore the relationship between neutropenia, afucosylated antibodies, and ADAs in cynomolgus monkeys, we performed an investigational retrospective meta-analysis of data from general toxicology studies conducted with Genentech's therapeutic antibodies administered to cynomolgus monkeys between 2005 and 2021. In this analysis, transient neutropenia strongly correlated with ADA-induced inflammation in cynomolgus monkeys administered afucosylated antibodies. This may reflect the simultaneous occurrence of two distinct processes of neutrophil elimination and utilization, thus overwhelming bone marrow reserve capacity leading to transient neutropenia. The integrated analysis of immunogenicity, and anatomic and clinical pathology results from these studies highlights the correlation of transient neutropenia in cynomolgus monkeys with ADA-related inflammation, potentially exacerbated by enhanced effector function of afucosylated antibodies.
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Affiliation(s)
- Adeyemi O. Adedeji
- Genentech, South San Francisco,
California, USA,Adeyemi O. Adedeji, Safety Assessment,
Genentech (a member of the Roche Group), 1 DNA Way, South San Francisco, CA
94080, USA.
| | - Fiona Zhong
- Genentech, South San Francisco,
California, USA
| | | | - Zoe Zhong
- Genentech, South San Francisco,
California, USA
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Hey A, Baumann A, Kronenberg S, Blaich G, Mohl S, Fagg R, Ulrich P, Rattel B, Richter WF, Kiessling A, Weir L. Nonclinical Development of Biologics: Integrating Safety, Pharmacokinetics, and Pharmacodynamics to Create Smarter and More Flexible Nonclinical Safety Programs Optimizing Animal Use. Int J Toxicol 2021; 40:270-284. [PMID: 33631988 DOI: 10.1177/1091581821994288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Safety assessment of biological drugs has its challenges due to the multiple new different modalities, for example, antibody-drug conjugates, bispecifics, nanobodies, fusion proteins and advanced therapy medicinal products (ATMPs), their different pharmacokinetic and pharmacodynamic properties, and their ability to trigger immunogenicity and toxicity. In the public and in the pharmaceutical industry, there is a strong and general desire to reduce the number of animals used in research and development of drugs and in particular reducing the use of nonhuman primates. Important discussions and activities are ongoing investigating the smarter designs of early research and dose range finding studies, reuse of animals, and replacing animal experiments with in vitro studies. Other important challenges include absence of a relevant species and design of studies and developing genetically modified animals for special investigative toxicology studies. Then, the learnings and challenges from the development of the first ATMPs are available providing valuable insights in the development path for these new potentially transformative treatments. Finally, development of strategies for assessment of immunogenicity and prediction of translation of immunogenicity and associated findings to the clinic. On this, the eighth meeting for the European BioSafe members, these challenges served as the basis for the presentations and discussions during the meeting. This article serves as the workshop report reviewing the presentations and discussions at the meeting.
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Affiliation(s)
- Adam Hey
- Novartis Pharma, Basel, Switzerland
| | | | - Sven Kronenberg
- 30259Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center, Basel, Switzerland
| | | | - Silke Mohl
- 30259Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center, Basel, Switzerland
| | | | | | | | - Wolfgang F Richter
- 30259Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center, Basel, Switzerland
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Matera MG, Calzetta L, Ora J, Rogliani P, Cazzola M. Pharmacokinetic/pharmacodynamic approaches to drug delivery design for inhalation drugs. Expert Opin Drug Deliv 2021; 18:891-906. [PMID: 33412922 DOI: 10.1080/17425247.2021.1873271] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Introduction: Inhaled drugs are important in the treatment of many lung pathologies, but to be therapeutically effective they must reach unbound concentrations at their effect site in the lung that are adequate to interact with their pharmacodynamic properties (PD) and exert the pharmacological action over an appropriate dosing interval. Therefore, the evaluation of pharmacokinetic (PK)/PD relationship is critical to predict their possible therapeutic effect.Areas covered: We review the approaches used to assess the PK/PD relationship of the major classes of inhaled drugs that are prescribed to treat pulmonary pathologies.Expert opinion: There are still great difficulties in producing data on lung concentrations of inhaled drugs and interpreting them as to their ability to induce the desired therapeutic action. The structural complexity of the lungs, the multiplicity of processes involved simultaneously and the physical interactions between the lungs and drug make any PK/PD approach to drug delivery design for inhalation medications extremely challenging. New approaches/methods are increasing our understanding about what happens to inhaled drugs, but they are still not ready for regulatory purposes. Therefore, we must still rely on plasma concentrations based on the axiom that they reflect both the extent and the pattern of deposition within the lungs.
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Affiliation(s)
- Maria Gabriella Matera
- Unit of Pharmacology, Dept. Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Luigino Calzetta
- Unit of Respiratory Disease and Lung Function, Dept. Medicine and Surgery, University of Parma, Parma, Italy
| | - Josuel Ora
- Unit of Respiratory Medicine, Dept. Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Paola Rogliani
- Unit of Respiratory Medicine, Dept. Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Mario Cazzola
- Unit of Respiratory Medicine, Dept. Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy
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Kissner T, Blaich G, Baumann A, Kronenberg S, Hey A, Kiessling A, Schmitt PM, Driessen W, Carrez C, Kramer D, Fretland J, Richter WF, Paehler T, Hopfer U, Rattel B. Challenges of non-clinical safety testing for biologics: A Report of the 9th BioSafe European Annual General Membership Meeting. MAbs 2021; 13:1938796. [PMID: 34241561 PMCID: PMC8274438 DOI: 10.1080/19420862.2021.1938796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/27/2021] [Accepted: 05/31/2021] [Indexed: 10/26/2022] Open
Abstract
New challenges and other topics in non-clinical safety testing of biotherapeutics were presented and discussed at the nineth European BioSafe Annual General Membership meeting in November 2019. The session topics were selected by European BioSafe organization committee members based on recent company achievements, agency interactions and new data obtained in the non-clinical safety testing of biotherapeutics, for which data sharing would be of interest and considered as valuable information. The presented session topics ranged from strategies of in vitro testing, immunogenicity prediction, bioimaging, and developmental and reproductive toxicology (DART) assessments to first-in-human (FIH) dose prediction and bioanalytical challenges, reflecting the entire space of different areas of expertise and different molecular modalities. During the 9th meeting of the European BioSafe members, the following topics were presented and discussed in 6 main sessions (with 3 or 4 presentations per session) and in three small group breakout sessions: 1) DART assessment with biotherapeutics: what did we learn and where to go?; 2) Non-animal testing strategies; 3) Seeing is believing: new frontiers in imaging; 4) Predicting immunogenicity during early drug development: hope or despair?; 5) Challenges in FIH dose projections; and 6) Non-canonical biologics formats: challenges in bioanalytics, PKPD and biotransformation for complex biologics formats. Small group breakout sessions were organized for team discussion about 3 specific topics: 1) Testing of cellular immune function in vitro and in vivo; 2) MABEL approach (toxicology and pharmacokinetic perspective); and 3) mRNA treatments. This workshop report presents the sessions and discussions at the meeting.
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Affiliation(s)
- Thomas Kissner
- Preclinical Safety, Sanofi-Aventis Deutschland GmbH, Frankfurt, Germany
| | - Guenter Blaich
- Preclinical Safety, AbbVie Deutschland GmbH, Ludwigshafen, Germany
| | - Andreas Baumann
- R&D Pharmaceuticals, Translational Sciences, Bayer AG, Berlin, Germany
| | - Sven Kronenberg
- Pharmaceutical Sciences, Pharma Research and Early Development (pRED), Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Adam Hey
- Oncology Safety, Clinical Pharmacology and Safety Sciences, AstraZeneca, Cambridge, UK
| | | | - Petra M. Schmitt
- Preclinical Safety, AbbVie Deutschland GmbH, Ludwigshafen, Germany
| | - Wouter Driessen
- Pharmaceutical Sciences, Pharma Research and Early Development (pRED), Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Chantal Carrez
- Sanofi R&D, Translational In Vivo Models, Sanofi S.A, Vitry-sur-Seine, France
| | - Daniel Kramer
- Sanofi R&D, Translational Medicine & Early Development, Sanofi-Aventis Deutschland GmbH, Frankfurt, Germany
| | | | - Wolfgang F. Richter
- Pharmaceutical Sciences, Pharma Research and Early Development (pRED), Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Tobias Paehler
- Drug Metabolism and Pharmacokinetics, Sanofi-Aventis Deutschland GmbH, Frankfurt, Germany
| | - Ulrike Hopfer
- Pharmaceutical Sciences, Pharma Research and Early Development (pRED), Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Benno Rattel
- Translational Safety & Bioanalytical Sciences, Amgen Research (Munich) GmbH, Munich, Germany
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Ayuso M, Buyssens L, Stroe M, Valenzuela A, Allegaert K, Smits A, Annaert P, Mulder A, Carpentier S, Van Ginneken C, Van Cruchten S. The Neonatal and Juvenile Pig in Pediatric Drug Discovery and Development. Pharmaceutics 2020; 13:44. [PMID: 33396805 PMCID: PMC7823749 DOI: 10.3390/pharmaceutics13010044] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/22/2020] [Accepted: 12/22/2020] [Indexed: 02/06/2023] Open
Abstract
Pharmacotherapy in pediatric patients is challenging in view of the maturation of organ systems and processes that affect pharmacokinetics and pharmacodynamics. Especially for the youngest age groups and for pediatric-only indications, neonatal and juvenile animal models can be useful to assess drug safety and to better understand the mechanisms of diseases or conditions. In this respect, the use of neonatal and juvenile pigs in the field of pediatric drug discovery and development is promising, although still limited at this point. This review summarizes the comparative postnatal development of pigs and humans and discusses the advantages of the juvenile pig in view of developmental pharmacology, pediatric diseases, drug discovery and drug safety testing. Furthermore, limitations and unexplored aspects of this large animal model are covered. At this point in time, the potential of the neonatal and juvenile pig as nonclinical safety models for pediatric drug development is underexplored.
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Affiliation(s)
- Miriam Ayuso
- Comparative Perinatal Development, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (L.B.); (M.S.); (A.V.); (C.V.G.)
| | - Laura Buyssens
- Comparative Perinatal Development, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (L.B.); (M.S.); (A.V.); (C.V.G.)
| | - Marina Stroe
- Comparative Perinatal Development, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (L.B.); (M.S.); (A.V.); (C.V.G.)
| | - Allan Valenzuela
- Comparative Perinatal Development, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (L.B.); (M.S.); (A.V.); (C.V.G.)
| | - Karel Allegaert
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium; (K.A.); (P.A.)
- Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium;
- Department of Hospital Pharmacy, Erasmus MC Rotterdam, 3000 CA Rotterdam, The Netherlands
| | - Anne Smits
- Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium;
- Neonatal Intensive Care Unit, University Hospitals UZ Leuven, 3000 Leuven, Belgium
| | - Pieter Annaert
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium; (K.A.); (P.A.)
| | - Antonius Mulder
- Department of Neonatology, University Hospital Antwerp, 2650 Edegem, Belgium;
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, 2610 Wilrijk, Belgium
| | | | - Chris Van Ginneken
- Comparative Perinatal Development, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (L.B.); (M.S.); (A.V.); (C.V.G.)
| | - Steven Van Cruchten
- Comparative Perinatal Development, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (L.B.); (M.S.); (A.V.); (C.V.G.)
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Johnson DE. Biotherapeutics: Challenges and Opportunities for Predictive Toxicology of Monoclonal Antibodies. Int J Mol Sci 2018; 19:E3685. [PMID: 30469350 PMCID: PMC6274697 DOI: 10.3390/ijms19113685] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/18/2018] [Accepted: 11/19/2018] [Indexed: 12/19/2022] Open
Abstract
Biotherapeutics are a rapidly growing portion of the total pharmaceutical market accounting for almost one-half of recent new drug approvals. A major portion of these approvals each year are monoclonal antibodies (mAbs). During development, non-clinical pharmacology and toxicology testing of mAbs differs from that done with chemical entities since these biotherapeutics are derived from a biological source and therefore the animal models must share the same epitopes (targets) as humans to elicit a pharmacological response. Mechanisms of toxicity of mAbs are both pharmacological and non-pharmacological in nature; however, standard in silico predictive toxicological methods used in research and development of chemical entities currently do not apply to these biotherapeutics. Challenges and potential opportunities exist for new methodologies to provide a more predictive program to assess and monitor potential adverse drug reactions of mAbs for specific patients before and during clinical trials and after market approval.
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Affiliation(s)
- Dale E Johnson
- Morgan Hall, University of California, Berkeley, Berkeley, CA 94720, USA.
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