Liam John Humphreys

Dr. Liam John Humphreys

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 October 2015 in Trials
Verified
Journal Article
Open access
PDF file
ACAnouska Madeleine Carter
Anouska Madeleine Carter
LHLiam John Humphreys
Liam John Humphreys
NSNicky Snowdon
Nicky Snowdon
BSBasil Sharrack
Basil Sharrack
ADAmanda Daley
Amanda Daley
JSJohn M. Saxton
John M. Saxton
The success of a clinical trial is often dependant on whether recruitment targets can be met in the required time frame. Despite an increase in research into the benefits of exercise in people with multiple sclerosis (PwMS), no trial has reported detailed data on effective recruitment strategies for large-scale randomised controlled trials. The main purpose of this report is to provide a detailed outline of recruitment strategies, rates and estimated costs in the Exercise Intervention for Multiple Sclerosis (ExIMS) trial to identify best practices for future trials involving multiple sclerosis (MS) patient recruitment. The ExIMS researchers recruited 120 PwMS to participate in a 12-week exercise intervention. Participants were randomly allocated to either exercise or usual-care control groups. Participants were sedentary, aged 18–65 years and had Expanded Disability Status Scale scores of 1.0–6.5. Recruitment strategies included attendance at MS outpatient clinics, consultant mail-out and trial awareness-raising activities. A total of 120 participants were recruited over the course of 34 months. To achieve this target, 369 potentially eligible and interested participants were identified. A total of 60 % of participants were recruited via MS clinics, 29.2 % from consultant mail-outs and 10.8 % through trial awareness. The randomisation yields were 33.2 %, 31.0 % and 68.4 % for MS clinic, consultant mail-outs and trial awareness strategies, respectively. The main reason for ineligibility was being too active (69.2 %), whilst for eligible participants the most common reason for non-participation was the need to travel to the study site (15.8 %). Recruitment via consultant mail-out was the most cost-effective strategy, with MS clinics being the most time-consuming and most costly. To reach recruitment targets in a timely fashion, a variety of methods were employed. Although consultant mail-outs were the most cost-effective recruitment strategy, use of this method alone would not have allowed us to obtain the predetermined number of participants in the required time period, thus leading to costly extensions of the project or failure to reach the number of participants required for sufficient statistical power. Thus, a multifaceted approach to recruitment is recommended for future trials. International Standard Randomised Controlled Trial Registry number: ISRCTN41541516 ; date registered: 5 February 2009.

24 February 2016 in Trials
Verified
Journal Article
Open access
PDF file
OTon behalf of the Booster trial team
on behalf of the Booster trial team
RCRobert James Copeland
Robert James Copeland
KHKimberley Horspool
Kimberley Horspool
LHLiam John Humphreys
Liam John Humphreys
ESEmma Scott
Emma Scott
Recruitment issues continue to impact a large number of trials. Sharing recruitment information is vital to supporting researchers to accurately predict recruitment and to manage the risk of poor recruitment during study design and implementation. The purpose of this article is to build on the knowledge available to researchers on recruiting to community-based trials. A critical commentary of the recruitment challenges encountered during the Booster Study, a randomised controlled trial in which researchers investigated the effectiveness of a motivational interviewing style intervention on the maintenance of physical activity. An overview of recruitment is provided, as well as strategies employed to recruit prospective participants and possible barriers to recruitment. Two hundred eighty-two people, 47 % of the original target, were recruited through mail-outs, with secondary recruitment pathways yielding no additional participants. The research team encountered problems with recontacting interested participants and providing study materials in non-English languages. A lower response rate to the mail-out and a greater number of non-contactable participants in the full study than in the pilot study resulted in a smaller pool of eligible participants from the brief intervention eligible for recruitment into the randomised controlled trial. Despite using widely accepted recruitment strategies and incorporating new recruitment tactics in response to challenges, the Booster Study investigators failed to randomise a sufficient number of participants. Recruitment in trials of community-based behavioural interventions may have different challenges than trials based on clinical or primary care pathways. Specific challenges posed by the complexity of the study design and problems with staffing and resources were exacerbated by the need to revise upwards the number of mailed invitations as a result of the pilot study. Researchers should ensure study design facilitates recruitment and consider the implications of changing recruitment on the operational aspects of the trial. Where possible, the impact of new strategies should be measured, and recruitment successes and challenges should be shared with those planning similar studies. ISRCTN56495859 (registered on 12 February 2009); NCT00836459 (registered on 3 February 2009).

8 January 2025 in Anaesthesia
Verified
Journal Article
Closed access
JMJohn Moore
John Moore
ABAlec Beaney
Alec Beaney
LHLiam John Humphreys
Liam John Humphreys
ZMZoe Merchant
Zoe Merchant
KPKrishna Kholia Parmar
Krishna Kholia Parmar
DLDenny Zelda Hope Levett
Denny Zelda Hope Levett

25 July 2020 in Disability and Rehabilitation
Verified
Journal Article
Closed access
LHLiam John Humphreys
Liam John Humphreys
HCHelen Crank
Helen Crank
JDJoanne Dixey
Joanne Dixey
DGDiana M. Greenfield
Diana M. Greenfield
Exercise support for people with cancer is a national priority. The purpose of this study was to identify the success factors necessary to create a model of exercise support for people affected by ...

29 March 2024 in Healthcare
Verified
Journal Article
Open access
PDF file
LHLiam John Humphreys
Liam John Humphreys
AMAnna Myers
Anna Myers
GFGabriella Frith
Gabriella Frith
MTMichael Thelwell
Michael Thelwell
KPKatie Pickering
Katie Pickering
RCRobert James Copeland
Robert James Copeland
Cancer patients undergoing major interventions face numerous challenges, including the adverse effects of cancer and the side effects of treatment. Cancer rehabilitation is vital in ensuring cancer patients have the support they need to maximise treatment outcomes and minimise treatment-related side effects and symptoms. The Active Together service is a multi-modal rehabilitation service designed to address critical support gaps for cancer patients. The service is located and provided in Sheffield, UK, an area with higher cancer incidence and mortality rates than the national average. The service aligns with local and regional cancer care objectives and aims to improve the clinical and quality-of-life outcomes of cancer patients by using lifestyle behaviour-change techniques to address their physical, nutritional, and psychological needs. This paper describes the design and initial implementation of the Active Together service, highlighting its potential to support and benefit cancer patients.

23 March 2024 in British Journal of Anaesthesia
Verified
Journal Article
Closed access
AMAnna Myers
Anna Myers
RBRachael C. Barlow
Rachael C. Barlow
GBGabriele Baldini
Gabriele Baldini
ACAnna M. Campbell
Anna M. Campbell
FCFranco Carli
Franco Carli
RCRobert James Copeland
Robert James Copeland