7 results on '"Copsey, B"'
Search Results
2. Current practice in methodology and reporting of the sample size calculation in randomised trials of hip and knee osteoarthritis: a protocol for a systematic review
- Author
-
Copsey, B, Dutton, S, Fitzpatrick, R, Lamb, SE, and Cook, JA
- Subjects
lcsh:R5-920 ,Endpoint Determination ,Sample size ,Osteoarthritis, Knee ,Osteoarthritis, Hip ,Study Protocol ,Treatment Outcome ,Reporting ,Osteoarthritis ,Systematic review ,Humans ,lcsh:Medicine (General) ,Randomized Controlled Trials as Topic ,Systematic Reviews as Topic - Abstract
Background A key aspect of the design of randomised controlled trials (RCTs) is determining the sample size. It is important that the trial sample size is appropriately calculated. The required sample size will differ by clinical area, for instance, due to the prevalence of the condition and the choice of primary outcome. Additionally, it will depend upon the choice of target difference assumed in the calculation. Focussing upon the hip and knee osteoarthritis population, this study aims to systematically review how the trial size was determined for trials of osteoarthritis, on what basis, and how well these aspects are reported. Methods Several electronic databases (Medline, Cochrane library, CINAHL, EMBASE, PsycINFO, PEDro and AMED) will be searched to identify articles on RCTs of hip and knee osteoarthritis published in 2016. Articles will be screened for eligibility and data extracted independently by two reviewers. Data will be extracted on study characteristics (design, population, intervention and control treatments), primary outcome, chosen sample size and justification, parameters used to calculate the sample size (including treatment effect in control arm, level of variability in primary outcome, loss to follow-up rates). Data will be summarised across the studies using appropriate summary statistics (e.g. n and %, median and interquartile range). The proportion of studies which report each key component of the sample size calculation will be presented. The reproducibility of the sample size calculation will be tested. Discussion The findings of this systematic review will summarise the current practice for sample size calculation in trials of hip and knee osteoarthritis. It will also provide evidence on the completeness of the reporting of the sample size calculation, reproducibility of the chosen sample size and the basis for the values used in the calculation. Trial registration As this review was not eligible to be registered on PROSPERO, the summary information was uploaded to Figshare to make it publicly accessible in order to avoid unnecessary duplication amongst other benefits (https://doi.org/10.6084/m9.figshare.5009027.v1); Registered January 17, 2017. Electronic supplementary material The online version of this article (doi:10.1186/s13063-017-2209-8) contains supplementary material, which is available to authorized users.
- Published
- 2017
- Full Text
- View/download PDF
3. Digital endpoints in clinical trials: emerging themes from a multi-stakeholder Knowledge Exchange event.
- Author
-
Tackney MS, Steele A, Newman J, Fritzsche MC, Lucivero F, Khadjesari Z, Lynch J, Abbott RA, Barber VS, Carpenter JR, Copsey B, Davies EH, Dixon WG, Fox L, González J, Griffiths J, Hinchliffe CHL, Kolanko MA, McGagh D, Rodriguez A, Roussos G, So KBE, Stanton L, Toshner M, Varian F, Williamson PR, Yimer BB, and Villar SS
- Subjects
- Humans, Cooperative Behavior, Interdisciplinary Communication, Mobile Applications, Wearable Electronic Devices, Research Design, Smartphone, Clinical Trials as Topic methods, Stakeholder Participation, Endpoint Determination
- Abstract
Background: Digital technologies, such as wearable devices and smartphone applications (apps), can enable the decentralisation of clinical trials by measuring endpoints in people's chosen locations rather than in traditional clinical settings. Digital endpoints can allow high-frequency and sensitive measurements of health outcomes compared to visit-based endpoints which provide an episodic snapshot of a person's health. However, there are underexplored challenges in this emerging space that require interdisciplinary and cross-sector collaboration. A multi-stakeholder Knowledge Exchange event was organised to facilitate conversations across silos within this research ecosystem., Methods: A survey was sent to an initial list of stakeholders to identify potential discussion topics. Additional stakeholders were identified through iterative discussions on perspectives that needed representation. Co-design meetings with attendees were held to discuss the scope, format and ethos of the event. The event itself featured a cross-disciplinary selection of talks, a panel discussion, small-group discussions facilitated via a rolling seating plan and audience participation via Slido. A transcript was generated from the day, which, together with the output from Slido, provided a record of the day's discussions. Finally, meetings were held following the event to identify the key challenges for digital endpoints which emerged and reflections and recommendations for dissemination., Results: Several challenges for digital endpoints were identified in the following areas: patient adherence and acceptability; algorithms and software for devices; design, analysis and conduct of clinical trials with digital endpoints; the environmental impact of digital endpoints; and the need for ongoing ethical support. Learnings taken for next generation events include the need to include additional stakeholder perspectives, such as those of funders and regulators, and the need for additional resources and facilitation to allow patient and public contributors to engage meaningfully during the event., Conclusions: The event emphasised the importance of consortium building and highlighted the critical role that collaborative, multi-disciplinary, and cross-sector efforts play in driving innovation in research design and strategic partnership building moving forward. This necessitates enhanced recognition by funders to support multi-stakeholder projects with patient involvement, standardised terminology, and the utilisation of open-source software., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
4. Using healthcare systems data for outcomes in clinical trials: issues to consider at the design stage.
- Author
-
Toader AM, Campbell MK, Quint JK, Robling M, Sydes MR, Thorn J, Wright-Hughes A, Yu LM, Abbott TEF, Bond S, Caskey FJ, Clout M, Collinson M, Copsey B, Davies G, Driscoll T, Gamble C, Griffin XL, Hamborg T, Harris J, Harrison DA, Harji D, Henderson EJ, Logan P, Love SB, Magee LA, O'Brien A, Pufulete M, Ramnarayan P, Saratzis A, Smith J, Solis-Trapala I, Stubbs C, Farrin A, and Williamson P
- Subjects
- Humans, Registries, Information Dissemination, Delivery of Health Care
- Abstract
Background: Healthcare system data (HSD) are increasingly used in clinical trials, augmenting or replacing traditional methods of collecting outcome data. This study, PRIMORANT, set out to identify, in the UK context, issues to be considered before the decision to use HSD for outcome data in a clinical trial is finalised, a methodological question prioritised by the clinical trials community., Methods: The PRIMORANT study had three phases. First, an initial workshop was held to scope the issues faced by trialists when considering whether to use HSDs for trial outcomes. Second, a consultation exercise was undertaken with clinical trials unit (CTU) staff, trialists, methodologists, clinicians, funding panels and data providers. Third, a final discussion workshop was held, at which the results of the consultation were fed back, case studies presented, and issues considered in small breakout groups., Results: Key topics included in the consultation process were the validity of outcome data, timeliness of data capture, internal pilots, data-sharing, practical issues, and decision-making. A majority of consultation respondents (n = 78, 95%) considered the development of guidance for trialists to be feasible. Guidance was developed following the discussion workshop, for the five broad areas of terminology, feasibility, internal pilots, onward data sharing, and data archiving., Conclusions: We provide guidance to inform decisions about whether or not to use HSDs for outcomes, and if so, to assist trialists in working with registries and other HSD providers to improve the design and delivery of trials., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
5. A longitudinal assessment of trial protocols approved by research ethics committees: The Adherance to SPIrit REcommendations in the UK (ASPIRE-UK) study.
- Author
-
Speich B, Odutayo A, Peckham N, Ooms A, Stokes JR, Saccilotto R, Gryaznov D, von Niederhäusern B, Copsey B, Altman DG, Briel M, and Hopewell S
- Subjects
- Guideline Adherence, Humans, United Kingdom, Clinical Trial Protocols as Topic, Ethics Committees, Research
- Abstract
Background: To assess the quality of reporting of RCT protocols approved by UK research ethics committees before and after the publication of the Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) guideline., Methods: We had access to RCT study protocols that received ethical approval in the UK in 2012 (n=103) and 2016 (n=108). From those, we assessed the adherence to the 33 SPIRIT items (i.e. a total of 64 components of the 33 SPIRIT items). We descriptively analysed the adherence to SPIRIT guidelines as proportion of adequately reported items (median and interquartile range [IQR]) and stratified the results by year of approval and sponsor., Results: The proportion of reported SPIRIT items increased from a median of 64.9% (IQR, 57.6-69.2%) in 2012 to a median of 72.5% (IQR, 65.3-78.3%) in 2016. Industry-sponsored RCTs reported more SPIRIT items in 2012 (median 67.4%; IQR, 64.1-69.4%) compared to non-industry-sponsored trials (median 59.8%; IQR, 46.5-67.7%). This gap between industry- and non-industry-sponsored trials increased in 2016 (industry-sponsored: median 75.6%; IQR, 71.2-79.0% vs non-industry-sponsored: median 65.3%; IQR, 51.6-76.3%)., Conclusions: The adherence to SPIRIT guidelines has improved in the UK from 2012 to 2016 but remains on a modest level, especially for non-industry-sponsored RCTs., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
6. A cluster RCT and process evaluation of an implementation optimisation intervention to promote parental engagement enrolment and attendance in a childhood obesity prevention programme: results of the Optimising Family Engagement in HENRY (OFTEN) trial.
- Author
-
Bryant M, Burton W, Collinson M, Farrin A, Nixon J, Stevens J, Roberts K, Foy R, Rutter H, Copsey B, Hartley S, Tubeuf S, and Brown J
- Subjects
- Anthropology, Cultural, Child, Humans, Parents, Pediatric Obesity diagnosis, Pediatric Obesity prevention & control
- Abstract
Background: Poor and variable implementation of childhood obesity prevention programmes reduces their population impact and sustainability. We drew upon ethnographic work to develop a multi-level, theory-based implementation optimisation intervention. This intervention aimed to promote parental enrolment and attendance at HENRY (Health Exercise Nutrition for the Really Young), a UK community obesity prevention programme, by changing behaviours of children's centre and local authority stakeholders., Methods: We evaluated the effectiveness of the implementation optimisation intervention on HENRY programme enrolment and attendance over a 12-month implementation period in a cluster randomised controlled trial. We randomised 20 local government authorities (with 126 children's centres) to HENRY plus the implementation optimisation intervention or to HENRY alone. Primary outcomes were (1) the proportion of centres enrolling at least eight parents per programme and (2) the proportion of centres with a minimum of 75% of parents attending at least five of eight sessions per programme. Trial analyses adjusted for stratification factors (pre-randomisation implementation of HENRY, local authority size, deprivation) and allowed for cluster design. A parallel mixed-methods process evaluation used qualitative interviews and routine monitoring to explain trial results., Results: Neither primary outcome differed significantly between groups; 17.8% of intervention centres and 18.0% of control centres achieved the parent enrolment target (adjusted difference - 1.2%; 95% CI - 19.5%, 17.1%); 17.1% of intervention centres and 13.9% of control centres achieved the attendance target (adjusted difference 1.2%; 95% CI - 15.7%, 18.1%). Unexpectedly, the trial coincided with substantial national service restructuring, including centre closures and reduced funds. Some commissioning and management teams stopped or reduced delivery of both HENRY and the implementation optimisation intervention due to competing demands. Thus, at follow-up, HENRY programmes were delivered to approximately half the number of parents compared to baseline (n = 433 vs. 881)., Conclusions: During a period in which services were reduced by external policies, this first definitive trial found no evidence of effectiveness for an implementation optimisation intervention promoting parent enrolment to and attendance at an obesity prevention programme., Trial Registration: ClinicalTrials.gov NCT02675699 . Registered on 4 February 2016., (© 2021. The Author(s).)
- Published
- 2021
- Full Text
- View/download PDF
7. Appraising the uptake and use of recommendations for a common outcome data set for clinical trials: a case study in fall injury prevention.
- Author
-
Copsey B, Hopewell S, Becker C, Cameron ID, and Lamb SE
- Subjects
- Age Factors, Consensus, Exercise, Guideline Adherence, Guidelines as Topic, Humans, Quality of Life, Wounds and Injuries physiopathology, Wounds and Injuries psychology, Accidental Falls prevention & control, Data Collection standards, Endpoint Determination standards, Randomized Controlled Trials as Topic standards, Research Design standards, Wounds and Injuries prevention & control
- Abstract
Background: Many researchers and professional bodies are seeking consensus for core outcomes for clinical trials. The Prevention of Falls Network Europe (ProFaNE) developed a common outcome data set for fall injury prevention trials 10 years ago. This study assesses the impact of these recommendations., Methods: A systematic search (up to 16 January 2015) was performed using Web of Science, Scopus and PubMed for articles citing the ProFaNE recommendations. Randomised trials on fall prevention in older people were selected for further analysis. Data were extracted on study characteristics and adherence to the key domains recommended by the ProFaNE consensus: falls, fall injury, physical activity, psychological consequences and health-related quality of life. Details of non-recommended outcome measures used were also recorded., Results: The ProFaNE recommendations were cited in a total of 464 published articles, of which 34 were randomised trials on fall prevention in older people. Only one study (3 %) reported on all core domains. Most of the trials reported on falls (n = 32/34, 94 %) as a core outcome measure. Most of the recommendations within the falls domain were well-followed. Around half of the trials reported on fall-related injury (n = 16/34, 47 %). However, none reported the number of radiologically confirmed peripheral fracture events, which is the recommended outcome measure for injury. The other key domains (quality of life, physical activity and psychological consequences) were less frequently reported on, with a lack of consistency in the outcome measures used., Conclusions: The ProFaNE recommendations had a limited effect on standardising the reporting of outcomes in randomised trials on fall injury prevention in older people during the search period. Authors of consensus guidelines should consider maximising buy-in by including a diversity of geographic areas and academic disciplines at the development stage and using a solid dissemination strategy.
- Published
- 2016
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.