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Modelling longitudinal preclinical tumour size data to identify transient dynamics in tumour response to anti-angiogenic drugs

Abstract:
Experimental evidence suggests that antiangiogenic therapy gives rise to a transient window of vessel normalization, within which the efficacy of radiotherapy and chemotherapy may be enhanced. Preclinical experiments that measure components of vessel normalization are invasive and expensive. We have developed a mathematical model of vascular tumor growth from preclinical time‐course data in a breast cancer xenograft model. We used a mixed‐effects approach for model parameterization, leveraging tumor size data to identify a period of enhanced tumor growth that could potentially correspond to the transient window of vessel normalization. We estimated the characteristics of the window for mice treated with an anti‐VEGF antibody (bevacizumab) or with a bispecific anti‐VEGF/anti‐angiopoietin‐2 antibody (vanucizumab). We show how the mathematical model could theoretically be used to predict how to coordinate antiangiogenic therapy with radiotherapy or chemotherapy to maximize therapeutic effect, reducing the need for preclinical experiments that directly measure vessel normalization parameters.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1002/psp4.12142

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author


More from this funder
Funding agency for:
Hutchinson, L
Grant:
EP/G037280/1
More from this funder
Funding agency for:
Hutchinson, L
Grant:
EP/G037280/1
More from this funder
Funding agency for:
Hutchinson, L
Grant:
EP/G037280/1


Publisher:
Wiley
Journal:
CPT: Pharmacometrics and Systems Pharmacology More from this journal
Volume:
5
Issue:
11
Pages:
636-645
Publication date:
2016-11-14
Acceptance date:
2016-09-28
DOI:
ISSN:
2163-8306


Keywords:
Pubs id:
pubs:646458
UUID:
uuid:9aebeac0-f118-45a1-94f6-3fc626e316dd
Local pid:
pubs:646458
Source identifiers:
646458
Deposit date:
2016-09-28

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