Core Outcomes to Measure clinical needs for people with primary Brain Tumours: COMBaT

Background:
Gliomas are the most frequent intrinsic tumours of the central nervous system, with an unpredictable and variable trajectory. Glioma patients face complex neuro-cognitive, neuro-behavioural, and physical symptoms and side effects caused by the tumour and the treatment. People living with glioma, and those close to them, continue to experience varying and challenging neurocognitive and practical unmet needs, necessitating further support to help people cope with the effects of the glioma and its treatment. Understanding the individual needs of people with glioma can inform standardised processes in health systems to assess person-centred outcomes and improve care pathways that can detect and assess the unmet needs of glioma patients in NHS clinical settings to improve health outcomes.


Study Design:
This study follows an approach standardised by the Core Outcome Measurement in Effectiveness Trials (COMET) Initiative and COnsensus-based Standards for the selection of health status Measurement Instruments (COSMIN) to robustly develop the Core Outcomes Set, through three work packages (WP).

WP 1: A qualitative synthesis of existing evidence about patient care via a systematic review (WP1a) and a secondary analysis of interview data (WP1b) will be undertaken to conceptualise key domains, forming a draft core outcome set (WP1c)

WP 2: Components of the draft outcome set will be systematically prioritised by our stakeholders (those with lived experience of glioma, those involved in glioma care delivery, and routine data collection in clinical practice) (WP2a). Psychometric properties of existing patient-reported outcome measures will be assessed and mapped onto the draft outcome set where possible (WP2b). The core outcome set will be ratified with our stakeholders via a consensus meeting (WP2c).

WP 3: An implementation workshop with people living with glioma, Healthcare professionals, and NHS Digital Services representatives will be held to identify the contextual requirements for the collection of the COMBaT outcomes within NHS Wales digital systems

The methodological approach will reflect COMET recommendations on panel structure, scoring and cut-off criteria for defining consensus.


Relevant COS:
The COBra study (COMET ID: 1793; “Development of a core outcome set and identification of patient-reportable outcomes for primary brain tumour trials”) established a consensus-based COS for adult primary glioma interventional trials. However, there remains a critical gap in how these outcomes are implemented within routine clinical care to meet patient needs. This project extends the COBra findings from a clinical trial context to a clinical practice context, while focusing on the digital implementation of the COMBaT COS.

Contributors

Dr Stephanie Sivell- Co-investigator
Marie Curie Research Centre, Cardiff University

Dr Ameeta Retzer- Co-investigator
Institute of Applied Health Research, University of Birmingham

Dr Noreen Hopwell-Kelly
Marie Curie Research Centre, Cardiff University

Vimeeka Raj Devarajan
Marie Curie Research Centre, Cardiff University

Prof. Anthony Byrne
Marie Curie Hospice

Prof. Andrew Carson-Stevens
Cardiff University

Dr James Powell
Velindre NHS Trust

Rhian Burke
Velindre NHS Trust

Dr Alasdair G Rooney
University of Edinburgh

Sarah Puntoni
NHS Wales Performance and Improvement

Dr Helen Bulbeck
brainstrust

Dr Kathy Seddon
Marie Curie Research Centre, Cardiff University

Dr Cressida Lorimer
University Hospital Sussex NHS Foundation Trust

Andrew Wright
Tessa Jowell

Cerys Harris
Marie Curie Research Centre, Cardiff University

Further Study Information

Current Stage: Ongoing
Date: April 2025 - January 2027
Funding source(s): Cancer Research Wales (Brain Tumour Research Initiative), (Grant No.2551)


Health Area

Disease Category: Cancer

Disease Name: Gliomas

Target Population

Age Range: 18 - 120

Sex: Either

Nature of Intervention: Any

Stakeholders Involved

- Charities
- Clinical experts
- Consumers (caregivers)
- Consumers (patients)
- Patient/ support group representatives

Study Type

- COS for practice

Method(s)

- Consensus meeting
- Delphi process
- Interview
- Systematic review

The study uses the following methods across three work packages:

WP 1. A systematic review of literature and a secondary analysis of interview transcripts from the COBra study to develop a draft list of outcomes.

WP2. A Delphi process to achieve consensus on a list of outcomes and a consensus meeting to generate a core outcome set.

WP3. An Implementation workshop to develop a strategy to use these outcomes in clinical settings.

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