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Norden DM, Navia CT, Sullivan JT, Doranz BJ. The emergence of cell-based protein arrays to test for polyspecific off-target binding of antibody therapeutics. MAbs 2024; 16:2393785. [PMID: 39180756 PMCID: PMC11346545 DOI: 10.1080/19420862.2024.2393785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/05/2024] [Accepted: 08/14/2024] [Indexed: 08/26/2024] Open
Abstract
Specificity profiling is a requirement for monoclonal antibodies (mAbs) and antibody-directed biotherapeutics such as CAR-T cells prior to initiating human trials. However, traditional approaches to assess the specificity of mAbs, primarily tissue cross-reactivity studies, have been unreliable, leading to off-target binding going undetected. Here, we review the emergence of cell-based protein arrays as an alternative and improved assessment of mAb specificity. Cell-based protein arrays assess binding across the full human membrane proteome, ~6,000 membrane proteins each individually expressed in their native structural configuration within live or unfixed cells. Our own profiling indicates a surprisingly high off-target rate across the industry, with 33% of lead candidates displaying off-target binding. Moreover, about 20% of therapeutic mAbs in clinical development and currently on the market display off-target binding. Case studies and off-target rates at different phases of biotherapeutic drug approval suggest that off-target binding is likely a major cause of adverse events and drug attrition.
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2
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Naga D, Dimitrakopoulou S, Roberts S, Husar E, Mohr S, Booler H, Musvasva E. CSL-Tox: an open-source analytical framework for the comparison of short-term and long-term toxicity end points and assessing the need of chronic studies in drug development. Sci Rep 2023; 13:14865. [PMID: 37684321 PMCID: PMC10491674 DOI: 10.1038/s41598-023-41899-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
In-vivo toxicity assessment is an important step prior to clinical development and is still the main source of data for overall risk assessment of a new molecular entity (NCE). All in-vivo studies are performed according to regulatory requirements and many efforts have been exerted to minimize these studies in accordance with the (Replacement, Reduction and Refinement) 3Rs principle. Many aspects of in-vivo toxicology packages can be optimized to reduce animal use, including the number of studies performed as well as study durations, which is the main focus of this analysis. We performed a statistical comparison of adverse findings observed in 116 short-term versus 78 long-term in-house or in-house sponsored Contract Research Organizations (CRO) studies, in order to explore the possibility of using only short-term studies as a prediction tool for the longer-term effects. All the data analyzed in this study was manually extracted from the toxicology reports (in PDF formats) to construct the dataset. Annotation of treatment related findings was one of the challenges faced during this work. A specific focus was therefore put on the summary and conclusion sections of the reports since they contain expert assessments on whether the findings were considered adverse or were attributed to other reasons. Our analysis showed a general good concordance between short-term and long-term toxicity findings for large molecules and the majority of small molecules. Less concordance was seen for certain body organs, which can be named as "target organ systems' findings". While this work supports the minimization of long-term studies, a larger-scale effort would be needed to provide more evidence. We therefore present the steps performed in this study as an open-source R workflow for the Comparison of Short-term and Long-term Toxicity studies (CSL-Tox). The dataset used in the work is provided to allow researchers to reproduce such analysis, re-evaluate the statistical tools used and promote large-scale application of this study. Important aspects of animal research reproducibility are highlighted in this work, specifically, the necessity of a reproducible adverse effects reporting system and utilization of the controlled terminologies in-vivo toxicology reports and finally the importance of open-source analytical workflows that can be assessed by other scientists in the field of preclinical toxicology.
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Affiliation(s)
- Doha Naga
- Roche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria.
| | - Smaragda Dimitrakopoulou
- Roche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
| | - Sonia Roberts
- Roche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Elisabeth Husar
- Roche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Susanne Mohr
- Roche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Helen Booler
- Roche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Eunice Musvasva
- Roche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
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3
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Banik SSR, Kushnir N, Doranz BJ, Chambers R. Breaking barriers in antibody discovery: harnessing divergent species for accessing difficult and conserved drug targets. MAbs 2023; 15:2273018. [PMID: 38050985 DOI: 10.1080/19420862.2023.2273018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 10/16/2023] [Indexed: 12/07/2023] Open
Abstract
To exploit highly conserved and difficult drug targets, including multipass membrane proteins, monoclonal antibody discovery efforts increasingly rely on the advantages offered by divergent species such as rabbits, camelids, and chickens. Here, we provide an overview of antibody discovery technologies, analyze gaps in therapeutic antibodies that stem from the historic use of mice, and examine opportunities to exploit previously inaccessible targets through discovery now possible in alternate species. We summarize the clinical development of antibodies raised from divergent species, discussing how these animals enable robust immune responses against highly conserved binding sites and yield antibodies capable of penetrating functional pockets via long HCDR3 regions. We also discuss the value of pan-reactive molecules often produced by these hosts, and how these antibodies can be tested in accessible animal models, offering a faster path to clinical development.
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4
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Prior H, Clarke DO, Jones D, Salicru E, Schutten MM, Sewell F. Exploring the Definition of "Similar Toxicities": Case Studies Illustrating Industry and Regulatory Interpretation of ICH S6(R1) for Long-Term Toxicity Studies in One or Two Species. Int J Toxicol 2022; 41:171-181. [PMID: 35435047 PMCID: PMC9152593 DOI: 10.1177/10915818221081439] [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] [Indexed: 11/15/2022]
Abstract
ICH S6 (R1) states that safety evaluation of biotherapeutics should normally include 2 relevant species when available (i.e., a rodent and non-rodent species in which the test material is pharmacologically active), at least for short-term toxicology studies (generally supporting Phase I trials). For subsequent long-term toxicology studies (e.g., chronic studies up to 6 months dosing duration), there are options to reduce to only one species when justified, including when the mechanism of action of the biologic is well-understood or the toxicity findings in the short-term studies are "similar" in both the rodent and non-rodent species. Across the industry, around 25 to 33% of biologics assess multiple species within short-term toxicity studies but it is often unclear how different companies and regulators are applying the ICH S6 (R1) principles of "similar toxicity profiles" to progress with either 1 or 2 species in the long-term studies, in particular whether the absence of toxicities is considered within this definition. Sponsors may potentially continue to use 2 species to avoid regulatory risk and potential delays in development timelines, representing missed opportunities for reducing animal use, particularly of non-human primates, during drug development.This article summarizes presentations from a symposium at the 41st Annual meeting of the American College of Toxicology (ACT) in November 2020, in which industry case studies and regulatory perspectives addressed considerations and decisions for using 1 or 2 species for long-term toxicity studies, highlighting any common themes or experience that could be applicable for use in future decision-making.
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Affiliation(s)
- Helen Prior
- National Centre for the Replacement
Refinement and Reduction of Animals in Research, London, UK
| | - David O Clarke
- Lilly Research
Laboratories, Lilly Corporate Center, Indianapolis, USA
| | - David Jones
- Medicines Healthcare products
Regulatory Agency (MHRA), London, UK
| | - Eleni Salicru
- Food and Drug Administration
(FDA), Silver Spring, ML, USA
| | | | - Fiona Sewell
- National Centre for the Replacement
Refinement and Reduction of Animals in Research, London, UK
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5
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Effects of Monovalent Salt on Protein-Protein Interactions of Dilute and Concentrated Monoclonal Antibody Formulations. Antibodies (Basel) 2022; 11:antib11020024. [PMID: 35466277 PMCID: PMC9036246 DOI: 10.3390/antib11020024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/17/2022] [Accepted: 03/24/2022] [Indexed: 02/04/2023] Open
Abstract
In this study, we used sodium chloride (NaCl) to extensively modulate non-specific protein-protein interactions (PPI) of a humanized anti-streptavidin monoclonal antibody class 2 molecule (ASA-IgG2). The changes in PPI with varying NaCl (CNaCl) and monoclonal antibody (mAb) concentration (CmAb) were assessed using the diffusion interaction parameter kD and second virial coefficient B22 measured from solutions with low to moderate CmAb. The effective structure factor S(q)eff measured from concentrated mAb solutions using small-angle X-ray and neutron scattering (SAXS/SANS) was also used to characterize the PPI. Our results found that the nature of net PPI changed not only with CNaCl, but also with increasing CmAb. As a result, parameters measured from dilute and concentrated mAb samples could lead to different predictions on the stability of mAb formulations. We also compared experimentally determined viscosity results with those predicted from interaction parameters, including kD and S(q)eff. The lack of a clear correlation between interaction parameters and measured viscosity values indicates that the relationship between viscosity and PPI is concentration-dependent. Collectively, the behavior of flexible mAb molecules in concentrated solutions may not be correctly predicted using models where proteins are considered to be uniform colloid particles defined by parameters derived from low CmAb.
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6
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Bussies PL, Richards EG, Rotz SJ, Falcone T. Targeted cancer treatment and fertility: effect of immunotherapy and small molecule inhibitors on female reproduction. Reprod Biomed Online 2021; 44:81-92. [PMID: 34674940 DOI: 10.1016/j.rbmo.2021.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 08/04/2021] [Accepted: 09/06/2021] [Indexed: 12/15/2022]
Abstract
Targeted cancer therapy is rapidly evolving the landscape of personalized health care. Novel approaches to selectively impeding tumour growth carry significant potential to improve survival outcomes, particularly for reproductive-aged patients harbouring treatment refractory disease. Current agents fall within two classes: immunotherapy and small molecule inhibitors. These are collectively divided into the following subclasses: monoclonal antibodies; immunomodulators; adoptive cell therapy; treatment vaccines; kinase inhibitors; proteasome inhibitors; metalloproteinase and heat shock protein inhibitors; and promoters of apoptosis. The short- and long-term effects of these treatments on the female reproductive system are not well understood. As a result, clinicians are rendered unable to appropriately counsel women on downstream effects to their fertility. Data-driven consensus recommendations are desperately needed. This review aims to characterize the effect of targeted cancer therapy on the female hypothalamic-pituitary-ovary axis, direct ovarian function and conception.
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Affiliation(s)
- Parker L Bussies
- Cleveland Clinic FoundNation, Department of Obstetrics and Gynecology, Cleveland OH, USA
| | - Elliott G Richards
- Cleveland Clinic FoundNation, Department of Obstetrics and Gynecology, Cleveland OH, USA
| | - Seth J Rotz
- Cleveland Clinic Foundation, Department of Pediatric Hematology, Oncology and Blood and Marrow Transplantation, Cleveland OH, USA
| | - Tommaso Falcone
- Cleveland Clinic FoundNation, Department of Obstetrics and Gynecology, Cleveland OH, USA.
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7
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Jahagirdar D, Bangde P, Jain R, Dandekar P. Degenerative disease-on-a-chip: Developing microfluidic models for rapid availability of newer therapies. Biotechnol J 2021; 16:e2100154. [PMID: 34390543 DOI: 10.1002/biot.202100154] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND Understanding the pathophysiology of degenerative diseases pertaining to nervous system, ocular region, bone/cartilage and muscle are still being comprehended, thus delaying the availability of targeted therapies. PURPOSE AND SCOPE Newer micro-physiological systems (organ-on-chip technology) involves development of more sophisticated devices, modelling a range of in vitro human tissues and an array of models for diseased conditions. These models expand opportunities for high throughput screening (HTS) of drugs and are likely to be rapid and cost-effective, thus reducing extensive usage of animal models. CONCLUSION Through this review article, we aim to present an overview of the degenerative disease models that are presently being developed using microfluidic platforms with the aim of mimicking in vivo tissue physiology and micro-architecture. The manuscript provides an overview of the degenerative disease models and their potential for testing and screening of possible biotherapeutic molecules and drugs. It highlights the perspective of the regulatory bodies with respect to the established-on chip models and thereby enhancing its translational potential. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Devashree Jahagirdar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India
| | - Prachi Bangde
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India
| | - Ratnesh Jain
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India
| | - Prajakta Dandekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India
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8
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Loberg LI, Chhaya M, Ibraghimov A, Tarcsa E, Striebinger A, Popp A, Huang L, Oellien F, Barghorn S. Off-target binding of an anti-amyloid beta monoclonal antibody to platelet factor 4 causes acute and chronic toxicity in cynomolgus monkeys. MAbs 2021; 13:1887628. [PMID: 33596779 PMCID: PMC7894423 DOI: 10.1080/19420862.2021.1887628] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/26/2021] [Accepted: 02/04/2021] [Indexed: 11/30/2022] Open
Abstract
ABT-736 is a humanized monoclonal antibody generated to target a specific conformation of the amyloid-beta (Aβ) protein oligomer. Development of ABT-736 for Alzheimer's disease was discontinued due to severe adverse effects (AEs) observed in cynomolgus monkey toxicity studies. The acute nature of AEs observed only at the highest doses suggested potential binding of ABT-736 to an abundant plasma protein. Follow-up investigations indicated polyspecificity of ABT-736, including unintended high-affinity binding to monkey and human plasma protein platelet factor 4 (PF-4), known to be involved in heparin-induced thrombocytopenia (HIT) in humans. The chronic AEs observed at the lower doses after repeat administration in monkeys were consistent with HIT pathology. Screening for a backup antibody revealed that ABT-736 possessed additional unintended binding characteristics to other, unknown factors. A subsequently implemented screening funnel focused on nonspecific binding led to the identification of h4D10, a high-affinity Aβ oligomer binding antibody that did not bind PF-4 or other unintended targets and had no AEs in vivo. This strengthened the hypothesis that ABT-736 toxicity was not Aβ target-related, but instead was the consequence of polyspecificity including PF-4 binding, which likely mediated the acute and chronic AEs and the HIT-like pathology. In conclusion, thorough screening of antibody candidates for nonspecific interactions with unrelated molecules at early stages of discovery can eliminate candidates with polyspecificity and reduce potential for toxicity caused by off-target binding.
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MESH Headings
- Alzheimer Vaccines/immunology
- Alzheimer Vaccines/pharmacokinetics
- Alzheimer Vaccines/toxicity
- Amyloid beta-Peptides/antagonists & inhibitors
- Amyloid beta-Peptides/immunology
- Animals
- Antibodies, Monoclonal, Humanized/immunology
- Antibodies, Monoclonal, Humanized/pharmacokinetics
- Antibodies, Monoclonal, Humanized/toxicity
- Antibody Specificity
- Blood Platelets/drug effects
- Blood Platelets/immunology
- Blood Platelets/metabolism
- Female
- Humans
- Immunity, Heterologous
- Macaca fascicularis
- Male
- Mice, Inbred BALB C
- No-Observed-Adverse-Effect Level
- Platelet Activation/drug effects
- Platelet Factor 4/antagonists & inhibitors
- Platelet Factor 4/immunology
- Purpura, Thrombocytopenic, Idiopathic/blood
- Purpura, Thrombocytopenic, Idiopathic/chemically induced
- Purpura, Thrombocytopenic, Idiopathic/immunology
- Risk Assessment
- Time Factors
- Toxicity Tests, Acute
- Toxicity Tests, Chronic
- Mice
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Affiliation(s)
- Lise I. Loberg
- Development Sciences, AbbVie Inc., North Chicago, IL, USA
| | - Meha Chhaya
- Global Biologics, AbbVie Inc., Worcester, MA, USA
| | | | | | | | - Andreas Popp
- Preclinical Safety, AbbVie Deutschland GmbH & Co. KG, Ludwigshafen, Germany
| | - Lili Huang
- Global Biologics, AbbVie Inc., Worcester, MA, USA
| | - Frank Oellien
- Discovery Chemistry, AbbVie Deutschland GmbH & Co. KG, Ludwigshafen, Germany
| | - Stefan Barghorn
- Discovery Biology, AbbVie Deutschland GmbH & Co. KG, Ludwigshafen, Germany
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9
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Prior H, Baldrick P, Beken S, Booler H, Bower N, Brooker P, Brown P, Burlinson B, Burns-Naas LA, Casey W, Chapman M, Clarke D, de Haan L, Doehr O, Downes N, Flaherty M, Gellatly N, Moesgaard SG, Harris J, Holbrook M, Hui J, Jones D, Jones K, Kedar H, Mahl A, Manninen A, McGuire A, Mortimer-Cassen E, Peraza M, Pugsley MK, Richard J, Roberts R, Roosen W, Rothfuss A, Schoenmakers A, Sewell F, Weaver R, Weir L, Wolfreys A, Kimber I. Opportunities for use of one species for longer-term toxicology testing during drug development: A cross-industry evaluation. Regul Toxicol Pharmacol 2020; 113:104624. [PMID: 32126256 DOI: 10.1016/j.yrtph.2020.104624] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 12/21/2022]
Abstract
An international expert working group representing 37 organisations (pharmaceutical/biotechnology companies, contract research organisations, academic institutions and regulatory bodies) collaborated in a data sharing exercise to evaluate the utility of two species within regulatory general toxicology studies. Anonymised data on 172 drug candidates (92 small molecules, 46 monoclonal antibodies, 15 recombinant proteins, 13 synthetic peptides and 6 antibody-drug conjugates) were submitted by 18 organisations. The use of one or two species across molecule types, the frequency for reduction to a single species within the package of general toxicology studies, and a comparison of target organ toxicities identified in each species in both short and longer-term studies were determined. Reduction to a single species for longer-term toxicity studies, as used for the development of biologicals (ICHS6(R1) guideline) was only applied for 8/133 drug candidates, but might have been possible for more, regardless of drug modality, as similar target organ toxicity profiles were identified in the short-term studies. However, definition and harmonisation around the criteria for similarity of toxicity profiles is needed to enable wider consideration of these principles. Analysis of a more robust dataset would be required to provide clear, evidence-based recommendations for expansion of these principles to small molecules or other modalities where two species toxicity testing is currently recommended.
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Affiliation(s)
- Helen Prior
- National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3Rs), Gibbs Building, 215 Euston Road, London, NW1 2BE, UK.
| | - Paul Baldrick
- Covance Laboratories Ltd, Otley Road, Harrogate, HG3 1PY, UK
| | - Sonja Beken
- Federal Agency for Medicines and Health Products (FAMHP), Victor Hortaplace 40/40, Brussels, 1060, Belgium
| | - Helen Booler
- Genentech, Inc, 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Nancy Bower
- Eisai Inc, 155 Tice Blvd, Woodcliff Lake, NJ, 07677, USA
| | - Paul Brooker
- Board member, NC3Rs, Gibbs Building, 215 Euston Road, London, NW1 2BE, UK
| | - Paul Brown
- Food and Drug Administration (FDA), 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | | | | | - Warren Casey
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods (NICEATM), National Institute of Environmental Health Sciences, P.O. Box 12233, Research Triangle Park, NC, 27709, USA
| | - Melissa Chapman
- Oncology Safety, Clinical Pharmacology and Safety Sciences,R&D, AstraZeneca, Cambridge, UK
| | - David Clarke
- Lilly Research Laboratories, Indianapolis, IN, 46285, USA
| | - Lolke de Haan
- Biologics and Advanced Therapeutics Safety, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Olaf Doehr
- Bayer Pharma AG, Müllerstrasse 170, 13353, Berlin, Germany
| | - Noel Downes
- Sequani Limited, Bromyard Rd, Ledbury, Herefordshire, HR8 1LH, UK
| | - Meghan Flaherty
- Takeda Pharmaceuticals, 300 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - Nichola Gellatly
- National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3Rs), Gibbs Building, 215 Euston Road, London, NW1 2BE, UK
| | | | - Jennifer Harris
- Association of British Pharmaceutical Industry (ABPI), 105 Victoria Street, London, SW1E 6QT, UK
| | | | - Julia Hui
- Celgene, 86 Morris Avenue, Summit, NJ, 07901, USA
| | - David Jones
- Medicines Healthcare products Regulatory Agency (MHRA) 10 South Colonnade, Canary Wharf, London, E14 4PU, UK
| | | | | | - Andreas Mahl
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
| | | | - Aidan McGuire
- Charles River Laboratories, Preclinical Services, Tranent, Edinburgh, EH33 2NE, UK
| | - Elisabeth Mortimer-Cassen
- Regulatory Safety Centre of Excellence, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Marjorie Peraza
- Pfizer Drug Safety Research and Development, 300 Technology Square, Cambridge, MA, 02139, USA
| | | | - Jacques Richard
- Sanofi, 371 Rue du Professeur Blayac, Montpellier, 34000, France
| | - Ruth Roberts
- ApconiX, Alderley Park, Alderley Edge, Cheshire, SK10 4TG, UK
| | - Wendy Roosen
- Janssen Research & Development, Turnhoutseweg 30, 2340, Beerse, Belgium
| | - Andreas Rothfuss
- Roche Pharmaceutical Research and Early Development, Roche Innovation Center Basel, CH - 4070, Basel, Switzerland
| | | | - Fiona Sewell
- National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3Rs), Gibbs Building, 215 Euston Road, London, NW1 2BE, UK
| | - Richard Weaver
- Institut de Recherches Internationales Servier, Biopharmacy, 92284, Suresnes, Cedex, France
| | - Lucinda Weir
- GlaxoSmithKline, Park Road, Ware, Hertfordshire, SG12 0DP, UK
| | | | - Ian Kimber
- University of Manchester, Faculty of Biology, Medicine and Health, Oxford Rd, Manchester, M13 9PL, UK
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10
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Hidalgo-Simon A. From Laboratory to Patient: The Evolving Path to Become a Medicine. MOLECULAR FRONTIERS JOURNAL 2019. [DOI: 10.1142/s2529732519400121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Gene editing and other laboratory developments promise to revolutionize treatment of many diseases that currently have no cure. The process to become a medicine is long and complex and requires many years. Regulation of medicines (permission to market a product and monitoring of its performance) is evolving to adapt to emerging new approaches in development. Current issues and new ideas needed to navigate the difficult waters from laboratory to patient are discussed here: novel approaches for narrow evidence base, earlier discussions of evidence with regulators, earlier planning for post-authorization requirements and better patient access.
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11
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Bobrowicz M, Zagozdzon R, Domagala J, Vasconcelos-Berg R, Guenova E, Winiarska M. Monoclonal Antibodies in Dermatooncology-State of the Art and Future Perspectives. Cancers (Basel) 2019; 11:E1420. [PMID: 31554169 PMCID: PMC6826541 DOI: 10.3390/cancers11101420] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/08/2019] [Accepted: 09/17/2019] [Indexed: 12/21/2022] Open
Abstract
Monoclonal antibodies (mAbs) targeting specific proteins are currently the most popular form of immunotherapy used in the treatment of cancer and other non-malignant diseases. Since the first approval of anti-CD20 mAb rituximab in 1997 for the treatment of B-cell malignancies, the market is continuously booming and the clinically used mAbs have undergone a remarkable evolution. Novel molecular targets are constantly emerging and the development of genetic engineering have facilitated the introduction of modified mAbs with improved safety and increased capabilities to activate the effector mechanisms of the immune system. Next to their remarkable success in hematooncology, mAbs have also an already established role in the treatment of solid malignancies. The recent development of mAbs targeting the immune checkpoints has opened new avenues for the use of this form of immunotherapy, also in the immune-rich milieu of the skin. In this review we aim at presenting a comprehensive view of mAbs' application in the modern treatment of skin cancer. We present the characteristics and efficacy of mAbs currently used in dermatooncology and summarize the recent clinical trials in the field. We discuss the side effects and strategies for their managing.
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Affiliation(s)
| | - Radoslaw Zagozdzon
- Department of Clinical Immunology, Medical University of Warsaw, 02-006 Warsaw, Poland.
- Department of Immunology, Transplantology and Internal Diseases, Medical University of Warsaw, 02-006 Warsaw, Poland.
| | - Joanna Domagala
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland.
- Postgraduate School of Molecular Medicine, 02-091 Warsaw, Poland.
| | - Roberta Vasconcelos-Berg
- Department of Dermatology, University Hospital Basel, University of Basel, 4031 Basel, Switzerland.
| | - Emmanuella Guenova
- Department of Dermatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
- Department of Dermatology, University of Lausanne, 1011 Lausanne, Switzerland.
| | - Magdalena Winiarska
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland.
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12
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Prior H, Monticello T, Boulifard V, Brennan FR, Kimber I. Integration of Consortia Recommendations for Justification of Animal Use Within Current and Future Drug Development Paradigms. Int J Toxicol 2019; 38:319-325. [PMID: 31220983 PMCID: PMC6659164 DOI: 10.1177/1091581819852922] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The pharmaceutical and biotechnology industries continually review the requirements for, and relevance of, safety assessment strategies. Various industry consortia are currently discussing and reviewing data on a range of topics with respect to regulatory toxicology programs. These consortia are charged with critical evaluation of data and the identification of opportunities to promote best practice and to introduce improved approaches to safety assessment. Such improvements may include enhanced predictivity, more efficient ways of working, and opportunities for promoting and implementing the 3Rs (replacement, refinement, or reduction). As each consortium is considering a distinct question, individual outputs and recommendations could be perceived to be conflicting. However, a common theme embraced by the consortia represented here is exploration of the most appropriate use of animals for the safety assessment of new medicinal products. This short review summarizes presentations and discussions from a symposium describing the work of four industry consortia and considers whether their recommendations can be aligned into realistic approaches to improve future toxicology testing strategies, highlighting justification for the appropriate use of different animal species and opportunities for reductions in animal use without compromising patient safety.
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Affiliation(s)
- Helen Prior
- National Centre for the Replacement, Refinement and Reduction of Animals in
Research (NC3Rs), London, United Kingdom
| | | | | | | | - Ian Kimber
- University of Manchester, Manchester, United Kingdom
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Pourjafar M, Samadi P, Khoshinani HM, Saidijam M. Are mimotope vaccines a good alternative to monoclonal antibodies? Immunotherapy 2019; 11:795-800. [PMID: 31094256 DOI: 10.2217/imt-2018-0213] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Utilizing immunotherapy as a potential therapeutic approach to boost the body's immune system for the fight against various diseases such as cancers, autoimmune diseases and also infections, is increasing day by day. Monoclonal antibodies, as effective therapeutic agents are used in cancer targeted therapies. However, these biologics have some disadvantages such as high costs and side effects. Therefore, emerging alternative immunotherapy strategies with high efficiency and low costs seems necessary. Mimotope vaccines, as epitope-mimicking structures, have shown to be effective therapeutic options, but are they really a good alternative to monoclonal antibodies, or are they just effective adjuvants?
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Affiliation(s)
- Mona Pourjafar
- Student Research Committee, Hamadan University of Medical Sciences, Hamadan, Iran.,Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Pouria Samadi
- Student Research Committee, Hamadan University of Medical Sciences, Hamadan, Iran.,Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Massoud Saidijam
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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Sormanni P, Aprile FA, Vendruscolo M. Third generation antibody discovery methods: in silico rational design. Chem Soc Rev 2018; 47:9137-9157. [PMID: 30298157 DOI: 10.1039/c8cs00523k] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Owing to their outstanding performances in molecular recognition, antibodies are extensively used in research and applications in molecular biology, biotechnology and medicine. Recent advances in experimental and computational methods are making it possible to complement well-established in vivo (first generation) and in vitro (second generation) methods of antibody discovery with novel in silico (third generation) approaches. Here we describe the principles of computational antibody design and review the state of the art in this field. We then present Modular, a method that implements the rational design of antibodies in a modular manner, and describe the opportunities offered by this approach.
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Affiliation(s)
- Pietro Sormanni
- Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK.
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15
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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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Harper J, Adams KJ, Bossi G, Wright DE, Stacey AR, Bedke N, Martinez-Hague R, Blat D, Humbert L, Buchanan H, Le Provost GS, Donnellan Z, Carreira RJ, Paston SJ, Weigand LU, Canestraro M, Sanderson JP, Botta Gordon-Smith S, Lowe KL, Rygiel KA, Powlesland AS, Vuidepot A, Hassan NJ, Cameron BJ, Jakobsen BK, Dukes J. An approved in vitro approach to preclinical safety and efficacy evaluation of engineered T cell receptor anti-CD3 bispecific (ImmTAC) molecules. PLoS One 2018; 13:e0205491. [PMID: 30321203 PMCID: PMC6188753 DOI: 10.1371/journal.pone.0205491] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/27/2018] [Indexed: 01/22/2023] Open
Abstract
Robust preclinical testing is essential to predict clinical safety and efficacy and provide data to determine safe dose for first-in-man studies. There are a growing number of examples where the preclinical development of drugs failed to adequately predict clinical adverse events in part due to their assessment with inappropriate preclinical models. Preclinical investigations of T cell receptor (TCR)-based immunotherapies prove particularly challenging as these biologics are human-specific and thus the conventional testing in animal models is inadequate. As these molecules harness the full force of the immune system, and demonstrate tremendous potency, we set out to design a preclinical package that would ensure adequate evaluation of these therapeutics. Immune Mobilising Monoclonal TCR Against Cancer (ImmTAC) molecules are bi-specific biologics formed of an affinity-enhanced TCR fused to an anti-CD3 effector function. ImmTAC molecules are designed to activate human T lymphocytes and target peptides within the context of a human leukocyte antigen (HLA), thus require an intact human immune system and peptidome for suitable preclinical screening. Here we draw upon the preclinical testing of four ImmTAC molecules, including IMCgp100, the first ImmTAC molecule to reach the clinic, to present our comprehensive, informative and robust approach to in vitro preclinical efficacy and safety screening. This package comprises a broad range of cellular and molecular assays using human tissues and cultured cells to test efficacy, safety and specificity, and hence predict human responses in clinical trials. We propose that this entirely in vitro package offers a potential model to be applied to screening other TCR-based biologics.
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Affiliation(s)
- Jane Harper
- Immunocore Ltd, Abingdon, Oxford, United Kingdom
| | | | | | | | | | - Nicole Bedke
- Immunocore Ltd, Abingdon, Oxford, United Kingdom
| | | | - Dan Blat
- Immunocore Ltd, Abingdon, Oxford, United Kingdom
| | | | | | | | | | | | | | | | | | | | | | - Kate L. Lowe
- Immunocore Ltd, Abingdon, Oxford, United Kingdom
| | | | | | | | | | | | | | - Joseph Dukes
- Immunocore Ltd, Abingdon, Oxford, United Kingdom
- * E-mail:
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Prior H, Baldrick P, de Haan L, Downes N, Jones K, Mortimer-Cassen E, Kimber I. Reviewing the Utility of Two Species in General Toxicology Related to Drug Development. Int J Toxicol 2018. [PMCID: PMC5881785 DOI: 10.1177/1091581818760564] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
As part of the safety assessment of new drugs, the use of two species (a rodent and a nonrodent) for regulatory toxicology studies is the typical approach taken for small molecules. For biologics, species selection is dictated by pharmacological relevance, and single species toxicology packages (typically using the nonhuman primate) are common. The UK National Centre for the Replacement, Refinement, and Reduction of Animals in Research and the Association of the British Pharmaceutical Industry are collaborating on a project to review the utility of two species in regulatory toxicology studies, with the aim to explore whether there are wider circumstances when data from a single species could be sufficient to enable safe progression in humans. An international working group consisting of 37 representatives from pharmaceutical and biotechnology companies, contract research organizations, academia, and regulatory bodies is coordinating a large-scale data sharing exercise to examine the potential for changes in current practice to reduce the number of species used for nonclinical safety testing at different stages of development. The challenge will be to determine whether two species toxicology adds significant value or whether in some instances data from a single species are sufficient (across a broader range of molecules than is currently the case) without compromising human safety.
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Affiliation(s)
- Helen Prior
- National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3Rs), London, United Kingdom
| | - Paul Baldrick
- Nonclinical and Biological Discovery Expert Network (NaBDEN), The Association of the British Pharmaceutical Industry (ABPI), London, United Kingdom
| | - Lolke de Haan
- Nonclinical and Biological Discovery Expert Network (NaBDEN), The Association of the British Pharmaceutical Industry (ABPI), London, United Kingdom
| | - Noel Downes
- Nonclinical and Biological Discovery Expert Network (NaBDEN), The Association of the British Pharmaceutical Industry (ABPI), London, United Kingdom
| | - Keith Jones
- Nonclinical and Biological Discovery Expert Network (NaBDEN), The Association of the British Pharmaceutical Industry (ABPI), London, United Kingdom
| | - Elisabeth Mortimer-Cassen
- Nonclinical and Biological Discovery Expert Network (NaBDEN), The Association of the British Pharmaceutical Industry (ABPI), London, United Kingdom
| | - Ian Kimber
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
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Brown N, Cambruzzi J, Cox PJ, Davies M, Dunbar J, Plumbley D, Sellwood MA, Sim A, Williams-Jones BI, Zwierzyna M, Sheppard DW. Big Data in Drug Discovery. PROGRESS IN MEDICINAL CHEMISTRY 2018; 57:277-356. [PMID: 29680150 DOI: 10.1016/bs.pmch.2017.12.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Interpretation of Big Data in the drug discovery community should enhance project timelines and reduce clinical attrition through improved early decision making. The issues we encounter start with the sheer volume of data and how we first ingest it before building an infrastructure to house it to make use of the data in an efficient and productive way. There are many problems associated with the data itself including general reproducibility, but often, it is the context surrounding an experiment that is critical to success. Help, in the form of artificial intelligence (AI), is required to understand and translate the context. On the back of natural language processing pipelines, AI is also used to prospectively generate new hypotheses by linking data together. We explain Big Data from the context of biology, chemistry and clinical trials, showcasing some of the impressive public domain sources and initiatives now available for interrogation.
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Affiliation(s)
| | | | | | | | | | | | | | - Aaron Sim
- BenevolentAI, London, United Kingdom
| | | | - Magdalena Zwierzyna
- BenevolentAI, London, United Kingdom; Institute of Cardiovascular Science, University College London, London, United Kingdom
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Ereño-Orbea J, Sicard T, Cui H, Carson J, Hermans P, Julien JP. Structural Basis of Enhanced Crystallizability Induced by a Molecular Chaperone for Antibody Antigen-Binding Fragments. J Mol Biol 2017; 430:322-336. [PMID: 29277294 DOI: 10.1016/j.jmb.2017.12.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 11/30/2017] [Accepted: 12/13/2017] [Indexed: 12/20/2022]
Abstract
Monoclonal antibodies constitute one of the largest groups of drugs to treat cancers and immune disorders, and are guiding the design of vaccines against infectious diseases. Fragments antigen-binding (Fabs) have been preferred over monoclonal antibodies for the structural characterization of antibody-antigen complexes due to their relatively low flexibility. Nonetheless, Fabs often remain challenging to crystallize because of the surface characteristics of complementary determining regions and the residual flexibility in the hinge region between the variable and constant domains. Here, we used a variable heavy-chain (VHH) domain specific for the human kappa light chain to assist in the structure determination of three therapeutic Fabs that were recalcitrant to crystallization on their own. We show that this ligand alters the surface properties of the antibody-ligand complex and lowers its aggregation temperature to favor crystallization. The VHH crystallization chaperone also restricts the flexible hinge of Fabs to a narrow range of angles, and so independently of the variable region. Our findings contribute a valuable approach to antibody structure determination and provide biophysical insight into the principles that govern the crystallization of macromolecules.
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Affiliation(s)
- June Ereño-Orbea
- Program in Molecular Medicine, The Hospital for Sick Children Research Institute, Toronto, ON, Canada M5G 0A4
| | - Taylor Sicard
- Program in Molecular Medicine, The Hospital for Sick Children Research Institute, Toronto, ON, Canada M5G 0A4; Department of Biochemistry, University of Toronto, Toronto, ON, Canada M5S 1A8
| | - Hong Cui
- Program in Molecular Medicine, The Hospital for Sick Children Research Institute, Toronto, ON, Canada M5G 0A4
| | - Jacob Carson
- Program in Molecular Medicine, The Hospital for Sick Children Research Institute, Toronto, ON, Canada M5G 0A4
| | - Pim Hermans
- BAC, BV, part of Thermo Fisher Scientific, Leiden, the Netherlands
| | - Jean-Philippe Julien
- Program in Molecular Medicine, The Hospital for Sick Children Research Institute, Toronto, ON, Canada M5G 0A4; Department of Biochemistry, University of Toronto, Toronto, ON, Canada M5S 1A8; Department of Immunology, University of Toronto, Toronto, ON, Canada M5S 1A8.
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Prior H, Sewell F, Stewart J. Overview of 3Rs opportunities in drug discovery and development using non-human primates. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.ddmod.2017.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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