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Assessing cognitive toxicity in early Phase Trials ‐ what are we missing?

Assessing cognitive toxicity in early Phase Trials ‐ what are we missing?
Assessing cognitive toxicity in early Phase Trials ‐ what are we missing?

Objectives: novel therapies, such as, small protein molecule inhibitors and immunotherapies are first tested clinically in Phase I trials. Moving on to later phase trials and ultimately standard practice. A key aim of these early clinical trials is to define a toxicity profile; however, the emphasis is often on safety. The concern is cognitive toxicity is poorly studied in this context and may be under-reported. The aim of this review is to map evidence of cognitive assessment, toxicity, and confounding factors within reports from Phase I trials and consider putative mechanisms of impairment aligned with mechanisms of novel therapies. 

Methods: a scoping review methodology was applied to the search of databases, including Embase, MEDLINE, Clinicaltrials.gov. A [keyword search was conducted, results screened for duplication then inclusion/exclusion criteria applied. Articles were further screened for relevance; data organised into categories and charted in a tabular format]. Evidence was collated and summarised into a narrative synthesis. 

Results: despite the availability of robust ways to assess cognitive function, these are not routinely included in the conduct of early clinical trials. Reports of cognitive toxicity in early Phase I trials are limited and available evidence on this shows that a proportion of patients experience impaired cognitive function over the course of participating in a Phase I trial. Links are identified between the targeted action of some novel therapies and putative mechanisms of cognitive impairment. 

Conclusion: the review provides rationale for research investigating cognitive function in this context. A study exploring the cognitive function of patients on Phase I trials and the feasibility of formally assessing this within early clinical trials is currently underway at the Royal Marsden.

anti-cancer therapies, attention, cancer, clinical trial phase I, cognitive dysfunction, drug development, immunotherapies, memory, oncology, pi3 kinase, poly (ADP-ribose) polymerase inhibitors, psycho-oncology
1057-9249
Stapleton, Sarah. E.
13e4d829-f059-42c8-bce7-4ce4875394c9
Darlington, Anne‐sophie
472fcfc9-160b-4344-8113-8dd8760ff962
Minchom, Anna
a89e1a87-6d5c-4df7-87da-a8421acb5239
Pal, Abhijit
fcbacbdb-904b-4bfe-ad96-4c6d35a5ef6e
Raynaud, Florence
55c86c86-dd61-46be-9834-c3a4993c7ddb
Wiseman, Theresa
e3ff42ae-97ef-4640-af3d-40eeae830df9
Stapleton, Sarah. E.
13e4d829-f059-42c8-bce7-4ce4875394c9
Darlington, Anne‐sophie
472fcfc9-160b-4344-8113-8dd8760ff962
Minchom, Anna
a89e1a87-6d5c-4df7-87da-a8421acb5239
Pal, Abhijit
fcbacbdb-904b-4bfe-ad96-4c6d35a5ef6e
Raynaud, Florence
55c86c86-dd61-46be-9834-c3a4993c7ddb
Wiseman, Theresa
e3ff42ae-97ef-4640-af3d-40eeae830df9

Stapleton, Sarah. E., Darlington, Anne‐sophie, Minchom, Anna, Pal, Abhijit, Raynaud, Florence and Wiseman, Theresa (2021) Assessing cognitive toxicity in early Phase Trials ‐ what are we missing? Psycho-Oncology. (doi:10.1002/pon.5834).

Record type: Review

Abstract

Objectives: novel therapies, such as, small protein molecule inhibitors and immunotherapies are first tested clinically in Phase I trials. Moving on to later phase trials and ultimately standard practice. A key aim of these early clinical trials is to define a toxicity profile; however, the emphasis is often on safety. The concern is cognitive toxicity is poorly studied in this context and may be under-reported. The aim of this review is to map evidence of cognitive assessment, toxicity, and confounding factors within reports from Phase I trials and consider putative mechanisms of impairment aligned with mechanisms of novel therapies. 

Methods: a scoping review methodology was applied to the search of databases, including Embase, MEDLINE, Clinicaltrials.gov. A [keyword search was conducted, results screened for duplication then inclusion/exclusion criteria applied. Articles were further screened for relevance; data organised into categories and charted in a tabular format]. Evidence was collated and summarised into a narrative synthesis. 

Results: despite the availability of robust ways to assess cognitive function, these are not routinely included in the conduct of early clinical trials. Reports of cognitive toxicity in early Phase I trials are limited and available evidence on this shows that a proportion of patients experience impaired cognitive function over the course of participating in a Phase I trial. Links are identified between the targeted action of some novel therapies and putative mechanisms of cognitive impairment. 

Conclusion: the review provides rationale for research investigating cognitive function in this context. A study exploring the cognitive function of patients on Phase I trials and the feasibility of formally assessing this within early clinical trials is currently underway at the Royal Marsden.

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Assessing cognitive toxicity in early Phase Trials - Accepted Manuscript
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More information

Accepted/In Press date: 29 September 2021
e-pub ahead of print date: 14 October 2021
Published date: 14 October 2021
Additional Information: Funding Information: The first author's post is funded by Cancer Research UK. Publisher Copyright: © 2021 John Wiley & Sons Ltd.
Keywords: anti-cancer therapies, attention, cancer, clinical trial phase I, cognitive dysfunction, drug development, immunotherapies, memory, oncology, pi3 kinase, poly (ADP-ribose) polymerase inhibitors, psycho-oncology

Identifiers

Local EPrints ID: 452561
URI: http://eprints.soton.ac.uk/id/eprint/452561
ISSN: 1057-9249
PURE UUID: c41df13b-15f2-4632-b6c2-eb53c8467250
ORCID for Theresa Wiseman: ORCID iD orcid.org/0000-0002-3355-1269

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Date deposited: 11 Dec 2021 11:27
Last modified: 17 Mar 2024 06:54

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Contributors

Author: Sarah. E. Stapleton
Author: Anna Minchom
Author: Abhijit Pal
Author: Florence Raynaud
Author: Theresa Wiseman ORCID iD

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