Comparing Model Performance in Characterizing the PK/PD of the Anti‐Myostatin Antibody Domagrozumab

Modeling and simulation provides quantitative information on target coverage for dose selection. Optimal model selection often relies on fit criteria and is not necessarily mechanistically driven. One such case is discussed where healthy volunteer data of an anti‐myostatin monoclonal antibody domagr...

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Main Authors: Abhinav Tiwari, Indranil Bhattacharya, Phylinda L.S. Chan, Lutz Harnisch
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Clinical and Translational Science
Online Access:https://doi.org/10.1111/cts.12693
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author Abhinav Tiwari
Indranil Bhattacharya
Phylinda L.S. Chan
Lutz Harnisch
author_facet Abhinav Tiwari
Indranil Bhattacharya
Phylinda L.S. Chan
Lutz Harnisch
author_sort Abhinav Tiwari
collection DOAJ
description Modeling and simulation provides quantitative information on target coverage for dose selection. Optimal model selection often relies on fit criteria and is not necessarily mechanistically driven. One such case is discussed where healthy volunteer data of an anti‐myostatin monoclonal antibody domagrozumab were used to develop different target‐mediated drug disposition models; a quasi‐steady state (QSS) rapid binding approximation model, a Michaelis−Menten (MM)‐binding kinetics (MM‐BK) model, and an MM‐indirect response (MM‐IDR) model. Whereas the MM‐BK model was identified as optimal in fitting the data, with all parameters estimated with high precision, the QSS model also converged but was not able to capture the nonlinear decline. Although the least mechanistic model, MM‐IDR, had the lowest objective function value, the MM‐BK model was further developed as it provided a reasonable fit and allowed simulations regarding growth differentiation factor‐8 target coverage for phase II dose selection with sufficient certainty to allow for testing of the underlying mechanistic assumptions.
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spelling doaj.art-4f4b37dcf4334c428334cc71d98626962022-12-22T00:02:35ZengWileyClinical and Translational Science1752-80541752-80622020-01-0113112513610.1111/cts.12693Comparing Model Performance in Characterizing the PK/PD of the Anti‐Myostatin Antibody DomagrozumabAbhinav Tiwari0Indranil Bhattacharya1Phylinda L.S. Chan2Lutz Harnisch3Department of Clinical Pharmacology Pfizer Cambridge Massachusetts USAQuantitative Clinical Pharmacology Takeda Pharmaceuticals International Co Cambridge Massachusetts USADepartment of Clinical Pharmacology/Pharmacometrics Pfizer SandwichKent UKDepartment of Clinical Pharmacology/Pharmacometrics Pfizer SandwichKent UKModeling and simulation provides quantitative information on target coverage for dose selection. Optimal model selection often relies on fit criteria and is not necessarily mechanistically driven. One such case is discussed where healthy volunteer data of an anti‐myostatin monoclonal antibody domagrozumab were used to develop different target‐mediated drug disposition models; a quasi‐steady state (QSS) rapid binding approximation model, a Michaelis−Menten (MM)‐binding kinetics (MM‐BK) model, and an MM‐indirect response (MM‐IDR) model. Whereas the MM‐BK model was identified as optimal in fitting the data, with all parameters estimated with high precision, the QSS model also converged but was not able to capture the nonlinear decline. Although the least mechanistic model, MM‐IDR, had the lowest objective function value, the MM‐BK model was further developed as it provided a reasonable fit and allowed simulations regarding growth differentiation factor‐8 target coverage for phase II dose selection with sufficient certainty to allow for testing of the underlying mechanistic assumptions.https://doi.org/10.1111/cts.12693
spellingShingle Abhinav Tiwari
Indranil Bhattacharya
Phylinda L.S. Chan
Lutz Harnisch
Comparing Model Performance in Characterizing the PK/PD of the Anti‐Myostatin Antibody Domagrozumab
Clinical and Translational Science
title Comparing Model Performance in Characterizing the PK/PD of the Anti‐Myostatin Antibody Domagrozumab
title_full Comparing Model Performance in Characterizing the PK/PD of the Anti‐Myostatin Antibody Domagrozumab
title_fullStr Comparing Model Performance in Characterizing the PK/PD of the Anti‐Myostatin Antibody Domagrozumab
title_full_unstemmed Comparing Model Performance in Characterizing the PK/PD of the Anti‐Myostatin Antibody Domagrozumab
title_short Comparing Model Performance in Characterizing the PK/PD of the Anti‐Myostatin Antibody Domagrozumab
title_sort comparing model performance in characterizing the pk pd of the anti myostatin antibody domagrozumab
url https://doi.org/10.1111/cts.12693
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