Mechanistically modeling peripheral cytokine dynamics following bispecific dosing in solid tumors

Abstract Bispecific antibodies exhibit proven clinical benefit, and many bispecifics are currently in clinical development for oncology. Cytokine release syndrome (CRS) is a common clinical adverse effect observed following CD3‐based bispecific dosing. However, the pathophysiology of CRS is not full...

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Main Author: Jared Weddell
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:CPT: Pharmacometrics & Systems Pharmacology
Online Access:https://doi.org/10.1002/psp4.12928
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author Jared Weddell
author_facet Jared Weddell
author_sort Jared Weddell
collection DOAJ
description Abstract Bispecific antibodies exhibit proven clinical benefit, and many bispecifics are currently in clinical development for oncology. Cytokine release syndrome (CRS) is a common clinical adverse effect observed following CD3‐based bispecific dosing. However, the pathophysiology of CRS is not fully understood, and no computational model mechanistically describing clinical cytokine dynamics following bispecific dosing in solid tumors exists. Here, a quantitative systems pharmacology (QSP) model describing peripheral clinical cytokine dynamics following bispecific dosing in solid tumors is presented. Using tebentafusp as a case study, a CD3‐bispecific approved for uveal melanoma, the model successfully captures the dynamics of five cytokines. The QSP model was shown to predict observed phenomena, such as cytokine maximum concentration suppression using step‐up dosing regimens and the importance of on‐target off‐tumor binding toward CRS and toxicity. Furthermore, the QSP model provides rationale for these biological phenomena based on dynamics of immune cell activation and desensitization in tumors and healthy tissues. Overall, the QSP model structure presented here serves as a basis to infer cytokine dynamics for other CD3‐based bispecifics or tumor types by altering model parameters to capture the scenario of interest, supporting applications including dose selection, candidate nomination, and disease area selection.
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spelling doaj.art-290b6ead6e1347b68e54a0ed066150602023-11-27T20:51:16ZengWileyCPT: Pharmacometrics & Systems Pharmacology2163-83062023-11-0112111726173710.1002/psp4.12928Mechanistically modeling peripheral cytokine dynamics following bispecific dosing in solid tumorsJared Weddell0Clinical Pharmacology and Exploratory Development Astellas Pharma Global Development Inc. Northbrook Illinois USAAbstract Bispecific antibodies exhibit proven clinical benefit, and many bispecifics are currently in clinical development for oncology. Cytokine release syndrome (CRS) is a common clinical adverse effect observed following CD3‐based bispecific dosing. However, the pathophysiology of CRS is not fully understood, and no computational model mechanistically describing clinical cytokine dynamics following bispecific dosing in solid tumors exists. Here, a quantitative systems pharmacology (QSP) model describing peripheral clinical cytokine dynamics following bispecific dosing in solid tumors is presented. Using tebentafusp as a case study, a CD3‐bispecific approved for uveal melanoma, the model successfully captures the dynamics of five cytokines. The QSP model was shown to predict observed phenomena, such as cytokine maximum concentration suppression using step‐up dosing regimens and the importance of on‐target off‐tumor binding toward CRS and toxicity. Furthermore, the QSP model provides rationale for these biological phenomena based on dynamics of immune cell activation and desensitization in tumors and healthy tissues. Overall, the QSP model structure presented here serves as a basis to infer cytokine dynamics for other CD3‐based bispecifics or tumor types by altering model parameters to capture the scenario of interest, supporting applications including dose selection, candidate nomination, and disease area selection.https://doi.org/10.1002/psp4.12928
spellingShingle Jared Weddell
Mechanistically modeling peripheral cytokine dynamics following bispecific dosing in solid tumors
CPT: Pharmacometrics & Systems Pharmacology
title Mechanistically modeling peripheral cytokine dynamics following bispecific dosing in solid tumors
title_full Mechanistically modeling peripheral cytokine dynamics following bispecific dosing in solid tumors
title_fullStr Mechanistically modeling peripheral cytokine dynamics following bispecific dosing in solid tumors
title_full_unstemmed Mechanistically modeling peripheral cytokine dynamics following bispecific dosing in solid tumors
title_short Mechanistically modeling peripheral cytokine dynamics following bispecific dosing in solid tumors
title_sort mechanistically modeling peripheral cytokine dynamics following bispecific dosing in solid tumors
url https://doi.org/10.1002/psp4.12928
work_keys_str_mv AT jaredweddell mechanisticallymodelingperipheralcytokinedynamicsfollowingbispecificdosinginsolidtumors