95 results on '"Snowdon, Claire"'
Search Results
2. Practical guidance for running late-phase platform protocols for clinical trials: lessons from experienced UK clinical trials units
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Love, Sharon B., Cafferty, Fay, Snowdon, Claire, Carty, Karen, Savage, Joshua, Pallmann, Philip, McParland, Lucy, Brown, Louise, Masters, Lindsey, Schiavone, Francesca, Hague, Dominic, Townsend, Stephen, Amos, Claire, South, Annabelle, Sturgeon, Kate, Langley, Ruth, Maughan, Timothy, James, Nicholas, Hall, Emma, Kernaghan, Sarah, Bliss, Judith, Turner, Nick, Tutt, Andrew, Yap, Christina, Firth, Charlotte, Kong, Anthony, Mehanna, Hisham, Watts, Colin, Hills, Robert, Thomas, Ian, Copland, Mhairi, Bell, Sue, Sebag-Montefiore, David, Jones, Robert, Parmar, Mahesh K. B., and Sydes, Matthew R.
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- 2022
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3. Circulating tumour DNA analysis to direct therapy in advanced breast cancer (plasmaMATCH): a multicentre, multicohort, phase 2a, platform trial
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Turner, Nicholas C, Kingston, Belinda, Kilburn, Lucy S, Kernaghan, Sarah, Wardley, Andrew M, Macpherson, Iain R, Baird, Richard D, Roylance, Rebecca, Stephens, Peter, Oikonomidou, Olga, Braybrooke, Jeremy P, Tuthill, Mark, Abraham, Jacinta, Winter, Matthew C, Bye, Hannah, Hubank, Michael, Gevensleben, Heidrun, Cutts, Ros, Snowdon, Claire, Rea, Daniel, Cameron, David, Shaaban, Abeer, Randle, Katrina, Martin, Sue, Wilkinson, Katie, Moretti, Laura, Bliss, Judith M, and Ring, Alistair
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- 2020
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4. Costs and staffing resource requirements for adaptive clinical trials: quantitative and qualitative results from the Costing Adaptive Trials project
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Wilson, Nina, Biggs, Katie, Bowden, Sarah, Brown, Julia, Dimairo, Munyaradzi, Flight, Laura, Hall, Jamie, Hockaday, Anna, Jaki, Thomas, Lowe, Rachel, Murphy, Caroline, Pallmann, Philip, Pilling, Mark A., Snowdon, Claire, Sydes, Matthew R., Villar, Sofía S., Weir, Christopher J., Welburn, Jessica, Yap, Christina, Maier, Rebecca, Hancock, Helen, and Wason, James M. S.
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- 2021
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5. Cediranib in patients with alveolar soft-part sarcoma (CASPS): a double-blind, placebo-controlled, randomised, phase 2 trial
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Judson, Ian, Morden, James P, Kilburn, Lucy, Leahy, Michael, Benson, Charlotte, Bhadri, Vivek, Campbell-Hewson, Quentin, Cubedo, Ricardo, Dangoor, Adam, Fox, Lisa, Hennig, Ivo, Jarman, Katy, Joubert, Warren, Kernaghan, Sarah, López Pousa, Antonio, McNeil, Catriona, Seddon, Beatrice, Snowdon, Claire, Tattersall, Martin, Toms, Christy, Martinez Trufero, Javier, and Bliss, Judith M
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- 2019
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6. Testing approaches to sharing trial results with participants: The Show RESPECT cluster randomised, factorial, mixed methods trial
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South, Annabelle, Joharatnam-Hogan, Nalinie, Purvis, Cara, James, Elizabeth C., Diaz-Montana, Carlos, Cragg, William J., Tweed, Conor, Macnair, Archie, Sydes, Matthew R., Snowdon, Claire, Gillies, Katie, Isaacs, Talia, Bierer, Barbara E., and Copas, Andrew J.
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Disclosure of information -- Methods ,Clinical trials -- Ethical aspects ,Chemotherapy -- Testing ,Cancer -- Chemotherapy ,Ovarian cancer -- Drug therapy ,Biological sciences - Abstract
Background Sharing trial results with participants is an ethical imperative but often does not happen. We tested an Enhanced Webpage versus a Basic Webpage, Mailed Printed Summary versus no Mailed Printed Summary, and Email List Invitation versus no Email List Invitation to see which approach resulted in the highest patient satisfaction with how the results were communicated. Methods and findings We carried out a cluster randomised, 2 by 2 by 2 factorial, nonblinded study within a trial, with semistructured qualitative interviews with some patients (ISRCTN96189403). Each cluster was a UK hospital participating in the ICON8 ovarian cancer trial. Interventions were shared with 384 ICON8 participants who were alive and considered well enough to be contacted, at 43 hospitals. Hospitals were allocated to share results with participants through one of the 8 intervention combinations based on random permutation within blocks of 8, stratified by number of participants. All interventions contained a written plain English summary of the results. The Enhanced Webpage also contained a short video. Both the Enhanced Webpage and Email contained links to further information and support. The Mailed Printed Summary was opt-out. Follow-up questionnaires were sent 1 month after patients had been offered the interventions. Patients' reported satisfaction was measured using a 5-point scale, analysed by ordinal logistic regression estimating main effects for all 3 interventions, with random effects for site, restricted to those who reported receiving the results and assuming no interaction. Data collection took place in 2018 to 2019. Questionnaires were sent to 275/384 randomly selected participants and returned by 180: 90/142 allocated Basic Webpage, 90/133 Enhanced Webpage; 91/141 no Mailed Printed Summary, 89/134 Mailed Printed Summary; 82/129 no Email List Invitation, 98/146 Email List Invitation. Only 3 patients opted out of receiving the Mailed Printed Summary; no patients signed up to the email list. Patients' satisfaction was greater at sites allocated the Mailed Printed Summary, where 65/81 (80%) were quite or very satisfied compared to sites with no Mailed Printed Summary 39/64 (61%), ordinal odds ratio (OR) = 3.15 (1.66 to 5.98, p < 0.001). We found no effect on patient satisfaction from the Enhanced Webpage, OR = 1.47 (0.78 to 2.76, p = 0.235) or Email List Invitation, OR = 1.38 (0.72 to 2.63, p = 0.327). Interviewees described the results as interesting, important, and disappointing (the ICON8 trial found no benefit). Finding out the results made some feel their trial participation had been more worthwhile. Regardless of allocated group, patients who received results generally reported that the information was easy to understand and find, were glad and did not regret finding out the results. The main limitation of our study is the 65% response rate. Conclusions Nearly all respondents wanted to know the results and were glad to receive them. Adding an opt-out Mailed Printed Summary alongside a webpage yielded the highest reported satisfaction. This study provides evidence on how to share results with other similar trial populations. Further research is needed to look at different results scenarios and patient populations. Trial registration ISRCTN: ISRCTN96189403., Author(s): Annabelle South 1,*, Nalinie Joharatnam-Hogan 1, Cara Purvis 1, Elizabeth C. James 1, Carlos Diaz-Montana 1, William J. Cragg 2, Conor Tweed 1, Archie Macnair 1, Matthew R. Sydes [...]
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- 2021
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7. Site staff perspectives on communicating trial results to participants: Cost and feasibility results from the Show RESPECT cluster randomised, factorial, mixed-methods trial.
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South, Annabelle, Bailey, Julia, Bierer, Barbara E, Burnett, Eva, Cragg, William J, Diaz-Montana, Carlos, Gillies, Katie, Isaacs, Talia, Joharatnam-Hogan, Nalinie, Snowdon, Claire, Sydes, Matthew R, and Copas, Andrew J
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CLUSTER sampling ,PILOT projects ,HUMAN research subjects ,PARTICIPANT-researcher relationships ,OVARIAN tumors ,CONFIDENCE intervals ,RESEARCH methodology ,PATIENT satisfaction ,INTERVIEWING ,REGRESSION analysis ,COST benefit analysis ,RANDOMIZED controlled trials ,COMPARATIVE studies ,COMMUNICATION ,QUESTIONNAIRES ,DESCRIPTIVE statistics ,RESEARCH funding ,STATISTICAL sampling ,THEMATIC analysis - Abstract
Background/Aims: Sharing trial results with participants is an ethical imperative but often does not happen. Show RESPECT (ISRCTN96189403) tested ways of sharing results with participants in an ovarian cancer trial (ISRCTN10356387). Sharing results via a printed summary improved patient satisfaction. Little is known about staff experience and the costs of communicating results with participants. We report the costs of communication approaches used in Show RESPECT and the views of site staff on these approaches. Methods: We allocated 43 hospitals (sites) to share results with trial participants through one of eight intervention combinations (2 × 2 × 2 factorial; enhanced versus basic webpage, printed summary versus no printed summary, email list invitation versus no invitation). Questionnaires elicited data from staff involved in sharing results. Open- and closed-ended questions covered resources used to share results and site staff perspectives on the approaches used. Semi-structured interviews were conducted. Interview and free-text data were analysed thematically. The mean additional site costs per participant from each intervention were estimated jointly as main effects by linear regression. Results: We received questionnaires from 68 staff from 41 sites and interviewed 11 site staff. Sites allocated to the printed summary had mean total site costs of sharing results £13.71/patient higher (95% confidence interval (CI): −3.19, 30.60; p = 0.108) than sites allocated no printed summary. Sites allocated to the enhanced webpage had mean total site costs £1.91/patient higher (95% CI: −14, 18.74; p = 0.819) than sites allocated to the basic webpage. Sites allocated to the email list had costs £2.87/patient lower (95% CI: −19.70, 13.95; p = 0.731) than sites allocated to no email list. Most of these costs were staff time for mailing information and handling patients' queries. Most site staff reported no concerns about how they had shared results (88%) and no challenges (76%). Most (83%) found it easy to answer queries from patients about the results and thought the way they were allocated to share results with participants would be an acceptable standard approach (76%), with 79% saying they would follow the same approach for future trials. There were no significant effects of the randomised interventions on these outcomes. Site staff emphasised the importance of preparing patients to receive the results, including giving opt-in/opt-out options, and the need to offer further support, particularly if the results could confuse or distress some patients. Conclusions: Adding a printed summary to a webpage (which significantly improved participant satisfaction) may increase costs to sites by ~£14/patient, which is modest in relation to the cost of trials. The Show RESPECT communication interventions were feasible to implement. This information could help future trials ensure they have sufficient resources to share results with participants. [ABSTRACT FROM AUTHOR]
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- 2023
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8. Adapting Patient and Public Involvement processes in response to the Covid‐19 pandemic.
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Snowdon, Claire, Silver, Elizabeth, Charlton, Paul, Devlin, Brian, Greenwood, Emma, Hutchings, Andrew, Moug, Susan, Vohra, Ravinder, and Grieve, Richard
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MEETINGS , *PATIENT participation , *OPERATIVE surgery , *PATIENTS , *MEDICAL referrals , *RESEARCH funding , *PSYCHOLOGICAL adaptation , *STAY-at-home orders , *THEMATIC analysis , *COVID-19 pandemic - Abstract
Background: The COVID‐19 pandemic brought rapid and major changes to research, and those wishing to carry out Patient and Public Involvement (PPI) activities faced challenges, such as restrictions on movement and contact, illness, bereavement and risks to potential participants. Some researchers moved PPI to online settings during this time but remote consultations raise, as well as address, a number of challenges. It is important to learn from PPI undertaken in this period as face‐to‐face consultation may no longer be the dominant method for PPI. Methods: UK stay‐at‐home measures announced in March 2020 necessitated immediate revisions to the intended face‐to‐face methods of PPI consultation for the ESORT Study, which evaluated emergency surgery for patients with common acute conditions. PPI plans and methods were modified to all components being online. We describe and reflect on: initial plans and adaptation; recruitment; training and preparation; implementation, contextualisation and interpretation. Through first‐hand accounts we show how the PPI processes were developed, experienced and viewed by different partners in the process. Discussion and Conclusions: While concerns have been expressed about the possible limiting effects of forgoing face‐to‐face contact with PPI partners, we found important benefits from the altered dynamic of the online PPI environment. There were increased opportunities for participation which might encourage the involvement of a broader demographic, and unexpected benefits in that the online platform seemed to have a 'democratising' effect on the meetings, to the benefit of the PPI processes and outcomes. Other studies may however find that their particular research context raises particular challenges for the use of online methods, especially in relation to representation and inclusion, as new barriers to participation may be raised. It is important that methodological challenges are addressed, and researchers provide detailed examples of novel methods for discussion and empirical study. Patient and Public Contribution: We report a process which involved people with lived experience of emergency conditions and members of the public. A patient member was involved in the design and implementation, and two patients with lived experience contributed to the manuscript. [ABSTRACT FROM AUTHOR]
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- 2023
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9. Information-hungry and disempowered: A qualitative study of women and their partners' experiences of severe postpartum haemorrhage
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Snowdon, Claire, Elbourne, Diana, Forsey, Mary, and Alfirevic, Zarko
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- 2012
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10. Views of emergency research (VERA): A qualitative study of women and their partners' views of recruitment to trials in severe postpartum haemorrhage
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Snowdon, Claire, Elbourne, Diana, Forsey, Mary, and Alfirevic, Zarko
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- 2012
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11. Clinical effectiveness and cost-effectiveness of emergency surgery for adult emergency hospital admissions with common acute gastrointestinal conditions: the ESORT study.
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Grieve, Richard, Hutchings, Andrew, Zapata, Silvia Moler, O'Neill, Stephen, Lugo-Palacios, David G., Silverwood, Richard, Cromwell, David, Kircheis, Tommaso, Silver, Elizabeth, Snowdon, Claire, Charlton, Paul, Bellingan, Geoff, Moonesinghe, Ramani, Keele, Luke, Smart, Neil, and Hinchliffe, Robert
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- 2023
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12. Trial Experience And Problems Of Parental Recollection Of Consent
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Elbourne, Diana, Snowdon, Claire, Garcia, Jo, and Field, David
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- 2001
13. Practical guidance for planning resources required to support publicly-funded adaptive clinical trials.
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Wason, James M. S., Dimairo, Munyaradzi, Biggs, Katie, Bowden, Sarah, Brown, Julia, Flight, Laura, Hall, Jamie, Jaki, Thomas, Lowe, Rachel, Pallmann, Philip, Pilling, Mark A., Snowdon, Claire, Sydes, Matthew R., Villar, Sofía S., Weir, Christopher J., Wilson, Nina, Yap, Christina, Hancock, Helen, and Maier, Rebecca
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Adaptive designs are a class of methods for improving efficiency and patient benefit of clinical trials. Although their use has increased in recent years, research suggests they are not used in many situations where they have potential to bring benefit. One barrier to their more widespread use is a lack of understanding about how the choice to use an adaptive design, rather than a traditional design, affects resources (staff and non-staff) required to set-up, conduct and report a trial. The Costing Adaptive Trials project investigated this issue using quantitative and qualitative research amongst UK Clinical Trials Units. Here, we present guidance that is informed by our research, on considering the appropriate resourcing of adaptive trials. We outline a five-step process to estimate the resources required and provide an accompanying costing tool. The process involves understanding the tasks required to undertake a trial, and how the adaptive design affects them. We identify barriers in the publicly funded landscape and provide recommendations to trial funders that would address them. Although our guidance and recommendations are most relevant to UK non-commercial trials, many aspects are relevant more widely. [ABSTRACT FROM AUTHOR]
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- 2022
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14. Reactions of Participants to the Results of a Randomised Controlled Trial: Exploratory Study
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Snowdon, Claire, Garcia, Jo, and Elbourne, Diana
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- 1998
15. Informed Consent
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Pfeffer, Naomi, Alderson, Priscilla, Campbell, Harry, Boyd, Kenneth M., Surry, Susan A. M., Cullinan, Tim, Squire, S. B., Hawley, R., Macfarlane, S., Agbaje, S., Beeching, N. J., Wyatt, G. B., De Koning, K., Gray, N., Hayward, C., Ali, A., Bianco, A. E., Taylor, M., Brabin, B., Coulter, J. B. S., de Burgh Daly, M., Elbourne, Diana, Snowdon, Claire, Garcia, Jo, Epstein, Keith, Sloat, Bill, Mohanna, Kay, Woodcock, Tom, Norman, John, Sikorski, Jim, Watson, Richard, Wilson, Philip, House, Allan, Knapp, Peter, Williamson, Charlotte, Sutton, Graham C., Garvican, Linda, Wilson, Robin, Malin, Adam, Lockwood, Diana, Mhlongo, S. W. P., Mdingi, G. V., Ashcroft, Richard, Toth, Ben, Mant, Jonathan, Winner, Simon, Carter, Judy, Wade, Derick T., Stott, D. J., Langhorne, P., Rodgers, H., Rutter, Deborah, Brewin, Thurstan, and Barer, David
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- 1997
16. Skeletal effects of exemestane on bone-mineral density, bone biomarkers, and fracture incidence in postmenopausal women with early breast cancer participating in the Intergroup Exemestane Study (IES): a randomised controlled study
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Coleman, Robert E, Banks, Linda M, Girgis, Samia I, Kilburn, Lucy S, Vrdoljak, Eduard, Fox, John, Cawthorn, Simon J, Patel, Ashraf, Snowdon, Claire F, Hall, Emma, Bliss, Judith M, and Coombes, R Charles
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- 2007
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17. 'It was a snap decision': Parental and professional perspectives on the speed of decisions about participation in perinatal randomised controlled trials
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Snowdon, Claire, Elbourne, Diana, and Garcia, Jo
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Parenting -- Health aspects ,Health ,Social sciences - Abstract
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.socscimed.2005.10.008 Byline: Claire Snowdon, Diana Elbourne, Jo Garcia Keywords: Random controlled trials; Decision-making; Perinatal trials; Parents; United Kingdom Abstract: For some perinatal trials, parents can be asked to make important decisions about trial participation within limited timeframes in highly stressful circumstances. This qualitative study explores the pace of decision-making for 78 parents associated with one or more of four such trials in the UK. The themes associated with rapid decisions were concern for their baby, reactions to staff, and perceptions of the benefits and risks associated with the trial. Those who took longer to decide whether or not to participate often described similar emotions to those who made rapid decisions, but their slower decisions were because more time was available, they wanted further discussion or they found the decision particularly difficult. The majority of those who made rapid decisions felt that there were no risks associated with the trial in question, in contrast to the majority of those who made slower decisions who felt there were risks. The parents did not appear to view rapid decisions as problematic. Although there was evidence of parental vulnerability in each trial context, they largely felt that they acted swiftly and responsibly in the best interests of their child in accordance with the timeframes that were set for them. Author Affiliation: London School of Hygiene and Tropical Medicine, London, UK
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- 2006
18. Using a theory-informed approach to explore patient and staff perspectives on factors that influence clinical trial recruitment for patients with cirrhosis and small oesophageal varices.
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Le Boutillier, Clair, Snowdon, Claire, Patel, Vishal, McPhail, Mark, Ward, Christopher, Carter, Ben, Uddin, Ruhama, Zamalloa, Ane, and Lawrence, Vanessa
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PATIENT selection , *ESOPHAGEAL varices , *PATIENTS' attitudes , *PRAGMATICS , *CLINICAL trials , *CIRRHOSIS of the liver - Abstract
Objective: The success of pharmacological randomised controlled trials (RCTs) depends on the recruitment of the required number of participants. Recruitment to RCTs for patients with cirrhosis and small oesophageal varices raises specific additional challenges. The objectives of the study were 1) to explore patient perspectives on factors that influence RCT recruitment, 2) to understand factors that influence the success of recruitment from a staff perspective, and 3) to identify opportunities for tailored interventions to improve trial recruitment in this context. Methods: The qualitative study was embedded in a multi-centre blinded RCT (BOPPP trial) and was conducted alongside site opening. Semi-structured interviews were conducted with patients who enrolled to participate in the trial (n = 13), patients who declined to take part (n = 5), and staff who were responsible for recruiting participants to the trial (n = 18). An open approach to data collection and analysis was adopted and the Theoretical Domains Framework (TDF) was used to provide a theoretical lens through which to view influences on behaviour. Data was analysed using thematic analysis. Results: The findings consist of 5 overarching themes that outline trial recruitment influences at the patient, staff, team, organisational and trial levels: i) patient risks and benefits ii) staff attitudes, knowledge and capacity, iii) team-based approach, iv) organisational context and v) Trial collective. Patient-generated themes map onto thirteen of the fourteen TDF domains and staff-generated themes map onto all TDF domains. The overarching themes are not mutually exclusive; with evidence of direct interactions between patient and staff-level themes that influence recruitment behaviours. Conclusions: This study uses a theory-informed approach to gain new insights into improving clinical trial recruitment for patients with cirrhosis and small oesophageal varices. Although people with cirrhosis often display decreased healthcare-seeking behaviours, we found that patients used research to empower themselves to improve their health. Pragmatic trials involving unpredictable populations require staff expertise in building trust, and a deep knowledge of the patient group and their vulnerabilities. RCT recruitment is also more successful when research visits align with what staff identified as the natural rhythm of care. Trial registration: ISRCTN10324656; https://clinicaltrials.gov/. [ABSTRACT FROM AUTHOR]
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- 2022
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19. Quality of Life in the Intergroup Exemestane Study: A Randomized Trial of Exemestane Versus Continued Tamoxifen After 2 to 3 Years of Tamoxifen in Postmenopausal Women With Primary Breast Cancer
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Fallowfield, Lesley J., Bliss, Judith M., Porter, Lucy S., Price, Miranda H., Snowdon, Claire F., Jones, Stephen E., Coombes, R Charles, and Hall, Emma
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- 2006
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20. Making sense of randomization: responses of parents of critically ill babies to random allocation of treatment in a clinical trial
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Snowdon, Claire, Garcia, Jo, and Elbourne, Diana
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Clinical trials -- Research ,Medical care -- Research ,Critically ill children -- Care and treatment ,Health ,Social sciences - Abstract
Randomized controlled trials (RCTs) are widely accepted by the scientific community as the most rigorous way of evaluating interventions in health care. Although their central feature, random allocation of treatment, is generally seen as methodologically appropriate, its application has caused much debate amongst health professionals and ethicists. This paper describes the views of parents who consented that their critically ill newborn baby should be enrolled in a neonatal trial. In-depth interviews were used to determine their responses to the trial and randomization. The nature of the trial was often poorly understood. The random basis of the allocation of treatment and the rationale behind this approach were also problematic issues. Some parents did not perceive a random element in the process at all. These findings advance understanding of the perceptions of trial participants and raise important issues for those concerned with RCTs. Greater understanding of participants' views provides the potential to improve the management of future trials and so the experience of those agreeing to take part. Key words - randomization, clinical trial participation, attitudes, ECMO
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- 1997
21. A Randomized Trial of Exemestane after Two to Three Years of Tamoxifen Therapy in Postmenopausal Women with Primary Breast Cancer
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Coombes, R. Charles, Hall, Emma, Gibson, Lorna J., Paridaens, Robert, Jassem, Jacek, Delozier, Thierry, Jones, Stephen E., Alvarez, Isabel, Bertelli, Gianfilippo, Ortmann, Olaf, Coates, Alan S., Bajetta, Emilio, Dodwell, David, Coleman, Robert E., Fallowfield, Lesley J., Mickiewicz, Elizabeth, Andersen, Jorn, Lonning, Per E., Cocconi, Giorgio, Stewart, Alan, Stuart, Nick, Snowdon, Claire F., Carpentieri, Marina, Massimini, Giorgio, and Bliss, Judith M.
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- 2004
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22. The BRACELET Study: surveys of mortality in UK neonatal and paediatric intensive care trials
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Platt Martin, Tasker Robert C, Brocklehurst Peter, Harvey Sheila E, Snowdon Claire, Allen Elizabeth, and Elbourne Diana
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Medicine (General) ,R5-920 - Abstract
Abstract Background The subject of death and bereavement in the context of randomised controlled trials in neonatal or paediatric intensive care is under-researched. The objectives of this phase of the Bereavement and RAndomised ControlLEd Trials (BRACELET) Study were to determine trial activity in UK neonatal and paediatric intensive care (2002-06); numbers of deaths before hospital discharge; and variation in mortality across intensive care units and trials and to determine whether bereavement support policies were available within trials. These are essential prerequisites to considering the implications of future policies and practice subsequent to bereavement following a child's enrolment in a trial. Methods The units survey involved neonatal units providing level 2 or 3 care, and paediatric units providing level II care or above; the trials survey involved trials where allocation was randomized and interventions were delivered to intensive care patients, or to parents but designed to affect patient outcomes. Results Information was available from 191/220 (87%) neonatal units (149 level 2 or 3 care); and 28/32 (88%) paediatric units. 90/177 (51%) eligible responding units participated in one or more trial (76 neonatal, 14 paediatric) and 54 neonatal units and 6 paediatric units witnessed at least one death. 50 trials were identified (36 neonatal, 14 paediatric). 3,137 babies were enrolled in neonatal trials, 210 children in paediatric trials. Deaths ranged 0-278 (median [IQR interquartile range] 2 [1, 14.5]) per neonatal trial, 0-4 (median [IQR] 1 [0, 2.5]) per paediatric trial. 534 (16%) participants died post-enrolment: 522 (17%) in neonatal trials, 12 (6%) in paediatric trials. Trial participants ranged 1-236 (median [IQR] 21.5 [8, 39.8]) per neonatal unit, 1-53 (median [IQR] 11.5 [2.3, 33.8]) per paediatric unit. Deaths ranged 0-37 (median [IQR] 3.5 [0.3, 8.8]) per neonatal unit, 0-7 (median [IQR] 0.5 [0, 1.8]) per paediatric unit. Three trials had a formal policy for responding to bereavement. Conclusions A substantial number of deaths after trial enrolment were identified, distributed over many trials and units. Few trial teams had responses to bereavement in place. Those with the largest numbers of deaths might be best placed to collaborate in developing and assessing responses to bereavement.
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- 2010
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23. Control of hyperglycaemia in paediatric intensive care (CHiP): study protocol
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Percy Deborah, Snowdon Claire, Allen Elizabeth, Betts Helen, Truesdale Ann, Goldman Allan, Slavik Zdenek, Fortune Peter-Marc, Baines Paul, Schindler Margrid, Nadel Simon, Parslow Roger, Grieve Richard, Pappachan John, Macrae Duncan, Broadhead Michael, Quick Tara, Peters Mark, Morris Kevin, Tasker Robert, and Elbourne Diana
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Pediatrics ,RJ1-570 - Abstract
Abstract Background There is increasing evidence that tight blood glucose (BG) control improves outcomes in critically ill adults. Children show similar hyperglycaemic responses to surgery or critical illness. However it is not known whether tight control will benefit children given maturational differences and different disease spectrum. Methods/Design The study is an randomised open trial with two parallel groups to assess whether, for children undergoing intensive care in the UK aged ≤ 16 years who are ventilated, have an arterial line in-situ and are receiving vasoactive support following injury, major surgery or in association with critical illness in whom it is anticipated such treatment will be required to continue for at least 12 hours, tight control will increase the numbers of days alive and free of mechanical ventilation at 30 days, and lead to improvement in a range of complications associated with intensive care treatment and be cost effective. Children in the tight control group will receive insulin by intravenous infusion titrated to maintain BG between 4 and 7.0 mmol/l. Children in the control group will be treated according to a standard current approach to BG management. Children will be followed up to determine vital status and healthcare resources usage between discharge and 12 months post-randomisation. Information regarding overall health status, global neurological outcome, attention and behavioural status will be sought from a subgroup with traumatic brain injury (TBI). A difference of 2 days in the number of ventilator-free days within the first 30 days post-randomisation is considered clinically important. Conservatively assuming a standard deviation of a week across both trial arms, a type I error of 1% (2-sided test), and allowing for non-compliance, a total sample size of 1000 patients would have 90% power to detect this difference. To detect effect differences between cardiac and non-cardiac patients, a target sample size of 1500 is required. An economic evaluation will assess whether the costs of achieving tight BG control are justified by subsequent reductions in hospitalisation costs. Discussion The relevance of tight glycaemic control in this population needs to be assessed formally before being accepted into standard practice. Trial Registration Current Controlled Trials ISRCTN61735247
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- 2010
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24. Informed consent: Subjects may not understand concept of clinical trials
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Elbourne, Diana, Snowdon, Claire, and Garcia, Jo
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- 1997
25. Patient and public involvement prior to trial initiation: lessons learnt for rapid partnership in the COVID-19 era.
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Jamal, Zahra, Perkins, Alexander, Allen, Christopher, Evans, Richard, Sturgess, Joanna, Snowdon, Claire, Clayton, Tim, and Elbourne, Diana
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COVID-19 ,COVID-19 pandemic ,TROPICAL medicine ,PSYCHOLOGICAL feedback ,CLINICAL medicine ,CLINICAL trials - Abstract
Plain English summary: Patient and Public Involvement (PPI) describes the active involvement of patients and the public in the research process. Through PPI, patients and members of the public are increasingly involved in the design and conduct of clinical trials. PPI has been shown to improve the quality and relevance of research. During the COVID-19 pandemic, clinical trials have been playing a vital role in helping us find ways to prevent and treat the infection and improve our understanding of the virus. It is important that patients and the public are actively involved in deciding how COVID-19 research is carried out. Unfortunately, Research Ethics Committees in the UK have seen far less PPI for COVID-19 research studies compared with research before the pandemic. A key reason for this is that research is being designed much faster than normal and researchers may feel they do not have time to properly involve patients and the public. In this paper, we share our experiences of PPI for a COVID-19 clinical trial. We show that it is possible to rapidly involve patients and the public in COVID-19 clinical trials. We also explain how the design of the clinical trial was changed in response to feedback from public contributors. Lastly, we discuss the wider learning from this process which might be useful for researchers planning PPI activities for COVID-19 clinical trials in the future. Background: Clinical trials are playing a critical role in the global public health response to the COVID-19 pandemic. Despite the increasing recognition of the value of PPI in clinical trials, just 22% of the COVID-19 research proposals reviewed by Research Ethics Committees in the UK at the start of the pandemic reported PPI. There is a perception that PPI might result in delays in delivering research and therefore delays in obtaining important results. In this paper, we report our experience of rapid PPI for a COVID-19 clinical trial. Methods: RAPID-19 is a COVID-19 clinical trial which was planned to be submitted for fast-track ethics review in the United Kingdom. During the development of the trial protocol, the PPI Panel at the London School of Hygiene & Tropical Medicine Clinical Trials Unit was involved in the design of the study. The meeting with the PPI Panel lasted just over 1 h and was conducted by teleconference. Results: Although we only had a short period of time to explore the study with the PPI Panel, we were able to gain valuable insight into how the trial would be perceived by potential trial participants. Substantive changes were made to the trial to improve the acceptability of the research without compromising the study timelines. Having access to public contributors with relevant lived experience is an important resource for a Clinical Trials Unit and is critical for rapid PPI. The move to remote working due to lockdown required virtual discussions which helped to overcome some of the barriers to organising face-to-face meetings at short notice. Conclusions: PPI for clinical trials can be conducted in a time-efficient manner within the pressured environment of a pandemic. Involving PPI contributors at an early stage in protocol development maximised the opportunity to shape and influence the trial as well as limited potential delays which could occur if changes to the protocol had to be made at a later stage. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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26. Marketing and clinical trials: a case study
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Entwistle Vikki A, Snowdon Claire, Garcia Jo, Knight Rosemary C, Shakur Haleema, Elbourne Diana R, Roberts Ian, Francis David, McDonald Alison M, Grant Adrian M, and Campbell Marion K
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Medicine (General) ,R5-920 - Abstract
Abstract Background Publicly funded clinical trials require a substantial commitment of time and money. To ensure that sufficient numbers of patients are recruited it is essential that they address important questions in a rigorous manner and are managed well, adopting effective marketing strategies. Methods Using methods of analysis drawn from management studies, this paper presents a structured assessment framework or reference model, derived from a case analysis of the MRC's CRASH trial, of 12 factors that may affect the success of the marketing and sales activities associated with clinical trials. Results The case study demonstrates that trials need various categories of people to buy in – hence, to be successful, trialists must embrace marketing strategies to some extent. Conclusion The performance of future clinical trials could be enhanced if trialists routinely considered these factors.
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- 2007
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27. Does it matter if clinicians recruiting for a trial don't understand what the trial is really about? Qualitative study of surgeons' experiences of participation in a pragmatic multi-centre RCT
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Snowdon Claire, Featherstone Katie, Ziebland Sue, Barker Karen, Frost Helen, and Fairbank Jeremy
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Medicine (General) ,R5-920 - Abstract
Abstract Background Qualitative methods are increasingly used to study the process of clinical trials and patients understanding of the rationale for trials, randomisation and reasons for taking part or refusing. Patients' understandings are inevitably influenced by the recruiting clinician's understanding of the trial, yet relatively little qualitative work has explored clinicians' perceptions and understandings of trials. This study interviewed surgeons shortly after the multi-centre, pragmatic RCT in which they had participated had been completed. Methods We used in-depth interviews with surgeons who participated in the Spine Stabilisation Trial (a pragmatic RCT) to explore their understanding of the trial purpose and how this understanding had influenced their recruitment procedures and interpretation of the results. A purposive sample of eleven participating surgeons was chosen from 8 of the 15 UK trial centres. Results Although the surgeons thought that the trial was addressing an important question there was little agreement about what this question was: although it was a trial of 'equivalent' treatments, some thought that it was a trial of surgery, others a trial of rehabilitation and others that it was exploring what to do with patients in whom all other treatment options had been unsuccessful. The surgeons we interviewed were not aware of the rationale for the pragmatic inclusion criteria and nearly all were completely baffled about the meaning of 'equipoise'. Misunderstandings about the entry criteria were an important source of confusion about the results and led to reluctance to apply the results to their own practice. Conclusion The study suggests several lessons for the conduct of future multi-centre trials. Recruiting surgeons (and other clinicians) may not be familiar with the rationale for pragmatic designs and may need to be regularly reminded about the purpose during the study. Reassurance may be necessary that a pragmatic design is not considered a design fault. We conclude that it does matter if clinicians do not understand the rationale for the trial if, as we have shown here, their perception of the trial aims and methods adversely affects who they recruit; if their views affect what the patients are told; and if they mistakenly view the results as unscientific, unreliable and ultimately irrelevant to their practice.
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- 2007
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28. Financial considerations in the conduct of multi-centre randomised controlled trials: evidence from a qualitative study
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Grant Adrian M, Francis David, Entwistle Vikki A, Campbell Marion K, Garcia Jo, Elbourne Diana R, Snowdon Claire, Knight Rosemary C, McDonald Alison M, and Roberts Ian
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Medicine (General) ,R5-920 - Abstract
Abstract Background Securing and managing finances for multicentre randomised controlled trials is a highly complex activity which is rarely considered in the research literature. This paper describes the process of financial negotiation and the impact of financial considerations in four UK multicentre trials. These trials had met, or were on schedule to meet, recruitment targets agreed with their public-sector funders. The trials were considered within a larger study examining factors which might be associated with trial recruitment (STEPS). Methods In-depth semi-structured telephone interviews were conducted in 2003–04 with 45 individuals with various responsibilities to one of the four trials. Interviewees were recruited through purposive and then snowball sampling. Interview transcripts were analysed with the assistance of the qualitative package Atlas-ti. Results The data suggest that the UK system of dividing funds into research, treatment and NHS support costs brought the trial teams into complicated negotiations with multiple funders. The divisions were somewhat malleable and the funding system was used differently in each trial. The fact that all funders had the potential to influence and shape the trials considered here was an important issue as the perspectives of applicants and funders could diverge. The extent and range of industry involvement in non-industry-led trials was striking. Three broad periods of financial work (foundation, maintenance, and resourcing completion) were identified. From development to completion of a trial, the trialists had to be resourceful and flexible, adapting to changing internal and external circumstances. In each period, trialists and collaborators could face changing costs and challenges. Each trial extended the recruitment period; three required funding extensions from MRC or HTA. Conclusion This study highlights complex financial aspects of planning and conducting trials, especially where multiple funders are involved. Recognition of the importance of financial stability and of the need for appropriate training in this area should be paralleled by further similar research with a broader range of trials, aimed at understanding and facilitating the conduct of clinical research.
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- 2006
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29. What influences recruitment to randomised controlled trials? A review of trials funded by two UK funding agencies
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Francis David, Elbourne Diana R, Cook Jonathan A, Grant Adrian M, Entwistle Vikki A, Campbell Marion K, Knight Rosemary C, McDonald Alison M, Garcia Jo, Roberts Ian, and Snowdon Claire
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Medicine (General) ,R5-920 - Abstract
Abstract Background A commonly reported problem with the conduct of multicentre randomised controlled trials (RCTs) is that recruitment is often slower or more difficult than expected, with many trials failing to reach their planned sample size within the timescale and funding originally envisaged. The aim of this study was to explore factors that may have been associated with good and poor recruitment in a cohort of multicentre trials funded by two public bodies: the UK Medical Research Council (MRC) and the Health Technology Assessment (HTA) Programme. Methods The cohort of trials was identified from the administrative databases held by the two funding bodies. 114 trials that recruited participants between 1994 and 2002 met the inclusion criteria. The full scientific applications and subsequent trial reports submitted by the trial teams to the funders provided the principal data sources. Associations between trial characteristics and recruitment success were tested using the Chi-squared test, or Fisher's exact test where appropriate. Results Less than a third (31%) of the trials achieved their original recruitment target and half (53%) were awarded an extension. The proportion achieving targets did not appear to improve over time. The overall start to recruitment was delayed in 47 (41%) trials and early recruitment problems were identified in 77 (63%) trials. The inter-relationship between trial features and recruitment success was complex. A variety of strategies were employed to try to increase recruitment, but their success could not be assessed. Conclusion Recruitment problems are complex and challenging. Many of the trials in the cohort experienced recruitment difficulties. Trials often required extended recruitment periods (sometimes supported by additional funds). While this is of continuing concern, success in addressing the trial question may be more important than recruitment alone.
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- 2006
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30. Mothers' Consent To Screening Newborn Babies For Disease
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Statham, Helen, Green, Josephine, and Snowdon, Claire
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- 1993
31. Randomized Phase II Study Evaluating Palbociclib in Addition to Letrozole as Neoadjuvant Therapy in Estrogen Receptor-Positive Early Breast Cancer: PALLET Trial.
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Johnston, Stephen, Puhalla, Shannon, Wheatley, Duncan, Ring, Alistair, Barry, Peter, Holcombe, Chris, Boileau, Jean Francois, Provencher, Louise, Robidoux, André, Rimawi, Mothaffar, McIntosh, Stuart A., Shalaby, Ibrahim, Stein, Robert C., Thirlwell, Michael, Dolling, David, Morden, James, Snowdon, Claire, Perry, Sophie, Cornman, Chester, and Batten, Leona M.
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- 2019
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32. "You have to keep your nerve on a DMC." Challenges for Data Monitoring Committees in neonatal intensive care trials: Qualitative accounts from the BRACELET Study.
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Snowdon, Claire, Brocklehurst, Peter, Tasker, Robert C., Ward Platt, Martin, and Elbourne, Diana
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CLINICAL trials , *COMMUNITY-based clinical trials , *INVESTIGATIONAL therapies , *CRITICAL care medicine , *INTENSIVE care units - Abstract
Background: Data Monitoring Committees (DMCs) are essential to the good conduct of many trials. Typically they comprise a small expert group which monitors safety, efficacy, progress and early outcome data as trials recruit. DMCs can recommend protocol revisions and early stopping of a trial. As DMC meetings usually consider unblinded interim data confidentially, their deliberations are seldom exposed to research scrutiny. Although there have been some case studies from trials from mixed specialties which offer insights into some of the common issues faced by DMCs, we have, however, little empirical information about the challenges faced within specific clinical settings. Methods: In-depth interviews with participants in the BRACELET Study on death and bereavement in neonatal intensive care trials produced qualitative accounts of experiences and views of a subgroup of 18 DMC members. These interviews explored views of DMC members in relation to the clinical context of neonatal intensive care and the conduct of neonatal intensive care trials. Results: Interviewees felt that an understanding of both the neonatal intensive care setting and population was crucial in a DMC. They considered the neonatal intensive care research population especially vulnerable, and that outcomes that included both death and severe disability raised particular challenges rarely faced in other settings. In exploring these key outcomes they were mindful of the need to meet high scientific standards and the needs of babies in the trials and their families. DMC members discussed particular difficulties around the composite outcome of death and severe disability, especially when mortality data were available long before data on longer term disability. While statistical stopping guidance is helpful, DMC members described decisions about stopping, revising or continuing a trial being informed by a wider set of considerations and discussions than a pre-set p value. These included potentially competing needs of current trial participants and future patients, and reflections on the nature of benefit and harm. Given their cognisance of the potential impact and consequences of the decisions made by DMCs in this setting of life, death, and disability, interviewees commonly used the imagery of bravery, and described DMCs either holding or losing their nerve. Conclusions: DMCs for trials in other fields may also face difficult ethical trade-offs in monitoring composite outcomes. The experience from this sample of DMC members suggest that for neonatal intensive care trials there are some very specific challenges seldom faced elsewhere. The vulnerability of the population, and the different timescales for essential data becoming available to inform decisions, presented particular challenges. We suggest that it is important to consider the challenges raised in other settings to better understand the complex work of these committees and to prepare future generations of DMC members. [ABSTRACT FROM AUTHOR]
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- 2018
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33. Long-Term Follow-Up of the Intergroup Exemestane Study.
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Morden, James P., Alvarez, Isabel, Bertelli, Gianfilippo, Coates, Alan S., Coleman, Robert, Fallowfield, Lesley, Jassem, Jacek, Jones, Stephen, Kilburn, Lucy, Lønning, Per E., Ortmann, Olaf, Snowdon, Claire, van de Velde, Cornelis, Andersen, Jørn, Del Mastro, Lucia, Dodwell, David, Holmberg, Stig, Nicholas, Hanna, Paridaens, Robert, and Bliss, Judith M.
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- 2017
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34. The role of therapeutic optimism in recruitment to a clinical trial in a peripartum setting: balancing hope and uncertainty.
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Hallowell, Nina, Snowdon, Claire, Morrow, Susan, Norman, Jane E., Denison, Fiona C., and Lawton, Julia
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- *
CLINICAL trials , *PERIPARTUM cardiomyopathy , *EXERCISE therapy , *NITROGLYCERIN , *MEDICAL care , *CHILDBIRTH , *EXPERIMENTAL design , *UNCERTAINTY , *QUALITATIVE research , *PATIENT selection - Abstract
Background: Hope has therapeutic value because it enables people to cope with uncertainty about their future health. Indeed, hope, or therapeutic optimism (TO), is seen as an essential aspect of the provision and experience of medical care. The role of TO in clinical research has been briefly discussed, but the concept, and whether it can be transferred from care to research and from patients to clinicians, has not been fully investigated. The role played by TO in research emerged during interviews with staff involved in a peripartum trial. This paper unpacks the concept of TO in this setting and considers the role it may play in the wider delivery of clinical trials.Methods: The Got-it trial is a UK-based, randomised placebo-controlled trial that investigates the use of sublingual glyceryl trinitrate (GTN) spray to treat retained placenta. Qualitative data were collected in open-ended interviews with obstetricians, research and clinical midwives (n =27) involved in trial recruitment. Data were analysed using the method of constant comparison.Results: TO influenced staff engagement with Got-it at different points in the trial and in different ways. Prior knowledge of, and familiarity with, GTN meant that from the outset staff perceived the trial as low risk. TO facilitated staff involvement in the trial; staff who already understood GTN's effects were optimistic that it would work, and staff collaborated because they hoped that the trial would address what they identified as an important clinical need. TO could fluctuate over the course of the trial, and was sustained or undermined by unofficial observation of clinical outcomes and speculations about treatment allocation. Thus, TO appeared to be influenced by key situational factors: prior knowledge and experience, clinical need and observed participant outcomes.Conclusions: Situational TO plays a role in facilitating staff engagement with clinical research. TO may affect trial recruitment by enabling staff to sustain the levels of uncertainty, or individual equipoise, necessary to collaborate with research while also responding to patients' clinical needs. Staff may benefit from training to deal with fluctuations in TO.Trial Registration: ISCRTN88609453 . Registered on 26 March 2014. [ABSTRACT FROM AUTHOR]- Published
- 2016
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35. Recruiting and consenting into a peripartum trial in an emergency setting: a qualitative study of the experiences and views of women and healthcare professionals.
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Lawton, Julia, Snowdon, Claire, Morrow, Susan, Norman, Jane E., Denison, Fiona C., and Hallowell, Nina
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- *
CLINICAL trials , *PERIPARTUM cardiomyopathy , *PREGNANCY complications , *PATIENT-professional relations , *PATIENT participation , *ATTITUDE (Psychology) , *COMPARATIVE studies , *DECISION making , *EMERGENCY medical services , *HEALTH attitudes , *INFORMED consent (Medical law) , *INTERVIEWING , *LABOR complications (Obstetrics) , *RESEARCH methodology , *MEDICAL cooperation , *MEDICAL personnel , *SENSORY perception , *PLACENTA diseases , *READABILITY (Literary style) , *RESEARCH , *STATISTICAL sampling , *QUALITATIVE research , *PILOT projects , *EVALUATION research , *RANDOMIZED controlled trials , *BLIND experiment , *PATIENT selection , *PSYCHOLOGY of human research subjects , *DIAGNOSIS - Abstract
Background: Recruiting and consenting women to peripartum trials can be challenging as the women concerned may be anxious, in pain, and exhausted; there may also be limited time for discussion and decision-making to occur. To address these potential difficulties, we undertook a qualitative evaluation of the internal pilot of a trial (Got-it) involving women who had a retained placenta (RP). We explored the experiences and views of women and staff about the information and consent pathway used within the pilot, in order to provide recommendations for use in future peripartum trials involving recruitment in emergency situations.Methods: In-depth interviews were undertaken with staff (n = 27) and participating women (n = 22). Interviews were analysed thematically. The accounts of women and staff were compared to identify differences and similarities in their views about recruitment and consent procedures.Results: Women and staff regarded recruitment as having been straightforward and facilitated by the use of simplified (verbal and written) summaries of trial information. Both parties, however, conveyed discordant views about whether fully informed consent had been obtained. These differences in perspectives appeared to arise from the different factors and considerations impinging on women and staff at the time of recruitment. While staff placed emphasis on promoting understanding in the emergency situation of RP by imparting information in clear and succinct ways, women highlighted the experiential realities of their pre- and post-birthing situations, and how these had led to quick decisions being made without full engagement with the potential risks of trial participation. To facilitate informed consent, women suggested that trial information should be given during the antenatal period, and, in doing so, articulated a rights-based discourse. Staff, however, voiced opposition to this approach by emphasising a duty of care to all pregnant women, and raising concerns about causing undue distress to the majority of individuals who would not subsequently develop a RP.Conclusions: By drawing upon the perspectives of women and staff involved in the same trial we have shown that they may operate within different experiential and ethical paradigms. In doing so, we argue for the potential benefits of drawing upon multiple perspectives when developing information and consent pathways used in future (peripartum) trials.Trial Registration: ISCRTN 88609453 . [ABSTRACT FROM AUTHOR]- Published
- 2016
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36. All God's Mistakes: Genetic Counselling in a Paediatric Hospital
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Snowdon, Claire
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All God's Mistakes: Genetic Counselling in a Paediatric Hospital (Book) -- Book reviews ,Books -- Book reviews ,Health ,Social sciences - Published
- 1994
37. First steps: study protocol for a randomized controlled trial of the effectiveness of the Group Family Nurse Partnership (gFNP) program compared to routine care in improving outcomes for high-risk mothers and their children and preventing abuse.
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Barnes, Jacqueline, Aistrop, Dipti, Allen, Elizabeth, Barlow, Jane, Elbourne, Diana, Macdonald, Geraldine, Melhuish, Edward, Petrou, Stavros, Pink, Joshua, Snowdon, Claire, Spiby, Helen, Stuart, Jane, and Sturgess, Joanna
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CLINICAL trials ,DOMESTIC violence ,FAMILY nursing ,CHILD abuse ,MENTAL illness ,ENGLISH language ,MENSTRUAL cycle - Abstract
Background: Evidence from the USA suggests that the home-based Family Nurse Partnership program (FNP), extending from early pregnancy until infants are 24 months, can reduce the risk of child abuse and neglect throughout childhood. FNP is now widely available in the UK. A new variant, Group Family Nurse Partnership (gFNP) offers similar content but in a group context and for a shorter time, until infants are 12 months old. Each group comprises 8 to 12 women with similar expected delivery dates and their partners. Its implementation has been established but there is no evidence of its effectiveness. Methods/Design: The study comprises a multi-site randomized controlled trial designed to identify the benefits of gFNP compared to standard care. Participants (not eligible for FNP) must be either aged < 20 years at their last menstrual period (LMP) with one or more previous live births, or aged 20 to 24 at LMP with low educational qualifications and no previous live births. 'Low educational qualifications' is defined as not having both Maths and English Language GCSE at grade C or higher or, if they have both, no more than four in total at grade C or higher. Exclusions are: under 20 years and previously received home-based FNP and, in either age group, severe psychotic mental illness or not able to communicate in English. Consenting women are randomly allocated (minimized by site and maternal age group) when between 10 and 16 weeks pregnant to either to the 44 session gFNP program or to standard care after the collection of baseline information. Researchers are blind to group assignment. The primary outcomes at 12 months are child abuse potential based on the revised Adult-Adolescent Parenting Inventory and parent/infant interaction coded using the CARE Index based on a video-taped interaction. Secondary outcomes are maternal depression, parenting stress, health related quality of life, social support, and use of services Discussion: This is the first study of the effectiveness of gFNP in the UK. Results should inform decision-making about its delivery alongside universal services, potentially enabling a wider range of families to benefit from the FNP curriculum and approach to supporting parenting. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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38. What Parents of Children Who Have Received Emergency Care Think about Deferring Consent in Randomised Trials of Emergency Treatments: Postal Survey.
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Gamble, Carrol, Nadel, Simon, Snape, Dee, McKay, Andrew, Hickey, Helen, Williamson, Paula, Glennie, Linda, Snowdon, Claire, and Young, Bridget
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EMERGENCY medical services ,MENINGITIS ,EMERGENCY medicine ,MEDICAL care ,CLINICAL trials ,CHILD mortality ,PATIENTS - Abstract
Objective: To investigate parents' views about deferred consent to inform management of trial disclosure after a child's death. Methods: A postal questionnaire survey was sent to members of the Meningitis Research Foundation UK charity, whose child had suffered from bacterial meningitis or meningococcal septicaemia within the previous 5 years. Main outcome measures were acceptability of deferred consent; timing of requesting consent; and the management of disclosure of the trial after a child's death. Results: 220 families were sent questionnaires of whom 63 (29%) were bereaved. 68 families responded (31%), of whom 19 (28%) were bereaved. The majority (67%) was willing for their child to be involved in the trial without the trial being explained to them beforehand; 70% wanted to be informed about the trial as soon as their child's condition had stabilised. In the event of a child's death before the trial could be discussed the majority of bereaved parents (66% 12/18) anticipated wanting to be told about the trial at some time. This compared with 37% (18/49) of non-bereaved families (p = 0.06). Parents' free text responses indicated that the word 'trial' held strongly negative connotations. A few parents regarded gaps in the evidence base about emergency treatments as indicating staff lacked expertise to care for a critically ill child. Bereaved parents' free text responses indicated the importance of individualised management of disclosure about a trial following a child's death. Discussion: Deferred consent is acceptable to the majority of respondents. Parents whose children had recovered differed in their views compared to bereaved parents. Most bereaved parents would want to be informed about the trial in the aftermath of a child's death, although a minority strongly opposed such disclosure. Distinction should be drawn between the views of bereaved and non-bereaved parents when considering the acceptability of different consent processes. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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39. Parents' attitudes to neonatal research involving venepuncture.
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Berrington, Janet E., Snowdon, Claire, and Fenton, Alan C.
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PARENT attitudes , *HEALTH surveys , *VENOUS puncture , *IMMUNIZATION , *MATERNALLY acquired immunity - Abstract
The objective of the study was to explore parental experiences of being offered participation in a previous neonatal research study involving venepuncture. The method employed was a questionnaire-based exploration of parents' attitudes in those approached to participate in a study of term and preterm immunization responses (Preterm Immunisation Study [PREMIS]). We explored experience of the initial approach, knowledge of study, venepuncture and views on research 'in general'. In all, 59% of families responded. Highest response rates were for those participating in PREMIS (87% term/69% preterm) and lowest in decliners (34%and 35%). Responding parents participating in PREMIS were well informed, positive about research and did not find the venepuncture problematic. Sixty percent of responding parents who declined PREMIS attributed their declining to the need for venepuncture. In conclusion, parents participating or declining a neonatal study involving venepuncture are different, but participating parents were well informed and seemed able to judge that participation was right for them such that in consenting families venepuncture itself is not problematic. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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40. The BRACELET Study: surveys of mortality in UK neonatal and paediatric intensive care trials.
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Snowdon, Claire, Harvey, Sheila E., Brocklehurst, Peter, Tasker, Robert C., Platt, Martin P. Ward, Allen, Elizabeth, and Elbourne, Diana
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- *
CLINICAL trials , *MORTALITY , *RANDOMIZED controlled trials , *PEDIATRICS , *CRITICAL care medicine - Abstract
Background: The subject of death and bereavement in the context of randomised controlled trials in neonatal or paediatric intensive care is under-researched. The objectives of this phase of the Bereavement and RAndomised ControlLEd Trials (BRACELET) Study were to determine trial activity in UK neonatal and paediatric intensive care (2002-06); numbers of deaths before hospital discharge; and variation in mortality across intensive care units and trials and to determine whether bereavement support policies were available within trials. These are essential prerequisites to considering the implications of future policies and practice subsequent to bereavement following a child's enrolment in a trial. Methods: The units survey involved neonatal units providing level 2 or 3 care, and paediatric units providing level II care or above; the trials survey involved trials where allocation was randomized and interventions were delivered to intensive care patients, or to parents but designed to affect patient outcomes. Results: Information was available from 191/220 (87%) neonatal units (149 level 2 or 3 care); and 28/32 (88%) paediatric units. 90/177 (51%) eligible responding units participated in one or more trial (76 neonatal, 14 paediatric) and 54 neonatal units and 6 paediatric units witnessed at least one death. 50 trials were identified (36 neonatal, 14 paediatric). 3,137 babies were enrolled in neonatal trials, 210 children in paediatric trials. Deaths ranged 0-278 (median [IQR interquartile range] 2 [1, 14.5]) per neonatal trial, 0-4 (median [IQR] 1 [0, 2.5]) per paediatric trial. 534 (16%) participants died post-enrolment: 522 (17%) in neonatal trials, 12 (6%) in paediatric trials. Trial participants ranged 1-236 (median [IQR] 21.5 [8, 39.8]) per neonatal unit, 1-53 (median [IQR] 11.5 [2.3, 33.8]) per paediatric unit. Deaths ranged 0-37 (median [IQR] 3.5 [0.3, 8.8]) per neonatal unit, 0-7 (median [IQR] 0.5 [0, 1.8]) per paediatric unit. Three trials had a formal policy for responding to bereavement. Conclusions: A substantial number of deaths after trial enrolment were identified, distributed over many trials and units. Few trial teams had responses to bereavement in place. Those with the largest numbers of deaths might be best placed to collaborate in developing and assessing responses to bereavement. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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41. Control of hyperglycaemia in paediatric intensive care (CHiP): study protocol.
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Macrae, Duncan, Pappachan, John, Grieve, Richard, Parslow, Roger, Nadel, Simon, Schindler, Margrid, Baines, Paul, Fortune, Peter-Marc, Slavik, Zdenek, Goldman, Allan, Truesdale, Ann, Betts, Helen, Allen, Elizabeth, Snowdon, Claire, Percy, Deborah, Broadhead, Michael, Quick, Tara, Peters, Mark, Morris, Kevin, and Tasker, Robert
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HYPERGLYCEMIA ,PEDIATRIC intensive care ,BLOOD sugar ,ARTIFICIAL respiration ,JUVENILE diseases - Abstract
Background: There is increasing evidence that tight blood glucose (BG) control improves outcomes in critically ill adults. Children show similar hyperglycaemic responses to surgery or critical illness. However it is not known whether tight control will benefit children given maturational differences and different disease spectrum. Methods/Design: The study is an randomised open trial with two parallel groups to assess whether, for children undergoing intensive care in the UK aged = 16 years who are ventilated, have an arterial line in-situ and are receiving vasoactive support following injury, major surgery or in association with critical illness in whom it is anticipated such treatment will be required to continue for at least 12 hours, tight control will increase the numbers of days alive and free of mechanical ventilation at 30 days, and lead to improvement in a range of complications associated with intensive care treatment and be cost effective. Children in the tight control group will receive insulin by intravenous infusion titrated to maintain BG between 4 and 7.0 mmol/l. Children in the control group will be treated according to a standard current approach to BG management. Children will be followed up to determine vital status and healthcare resources usage between discharge and 12 months post-randomisation. Information regarding overall health status, global neurological outcome, attention and behavioural status will be sought from a subgroup with traumatic brain injury (TBI). A difference of 2 days in the number of ventilator-free days within the first 30 days post-randomisation is considered clinically important. Conservatively assuming a standard deviation of a week across both trial arms, a type I error of 1% (2-sided test), and allowing for non-compliance, a total sample size of 1000 patients would have 90% power to detect this difference. To detect effect differences between cardiac and non-cardiac patients, a target sample size of 1500 is required. An economic evaluation will assess whether the costs of achieving tight BG control are justified by subsequent reductions in hospitalisation costs. Discussion: The relevance of tight glycaemic control in this population needs to be assessed formally before being accepted into standard practice. Trial Registration: Current Controlled Trials ISRCTN61735247 [ABSTRACT FROM AUTHOR]
- Published
- 2010
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42. Effectiveness of bereavement interventions in neonatal intensive care: A review of the evidence.
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Harvey, Sheila, Snowdon, Claire, and Elbourne, Diana
- Abstract
Summary: The provision of bereavement care is an important part of neonatal intensive care. This systematic review of the effectiveness of interventions to support families and facilitate emotional adjustment following the death of a baby suggests that, while these are largely appreciated by parents who have participated in research, there has been little rigorous evaluation of their effectiveness. This review reflects on possible reasons for this; for example: NICU-led bereavement care is changing, the effectiveness of bereavement care is difficult to measure, concepts of effectiveness are not static, and ethical concerns complicate experimental research. Bereavement interventions are compassion-led and generally considered to be beneficial. New research questions and new methodological challenges are discussed with reference to two examples of evolving practice: bereavement photography and the use of ritual. Future research using innovative and sensitive RCTs and consensus amongst relevant stakeholders is suggested. [Copyright &y& Elsevier]
- Published
- 2008
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43. Declining enrolment in a clinical trial and injurious misconceptions: is there a flipside to the therapeutic misconception?
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Snowdon, Claire, Elbourne, Diana, and Garcia, Jo
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PROFESSIONAL ethics , *MENTAL health , *MEDICAL misconceptions , *CLINICAL medicine , *MEDICAL research , *PATHOLOGICAL psychology , *BEHAVIORAL medicine - Abstract
The term 'therapeutic misconception' (TM) was introduced in 1982 to conceptualize how some psychiatry trial participants perceived and interpreted their involvement in research. TM has since been identified in many settings and is a major component in research ethics discussions. A qualitative study included a subgroup of interviews with five parents (two couples, one mother) who declined to enrol their baby in a neonatal trial. Analysis suggested the possibility of a counterpart to TM which, given the original terminology, we term the 'injurious misconception' (IM). While TM is closely linked to the elision of care and research, and involves an over-stated sense of benefit and protection, IM may be a product of a particularly keen and discomforting sense of distinctions between care and research and a correspondingly over-stated sense of risk and threat. [ABSTRACT FROM AUTHOR]
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- 2007
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44. Marketing and clinical trials: a case study.
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Francis, David, Roberts, Ian, Elbourne, Diana R., Shakur, Haleema, Knight, Rosemary C., Garcia, Jo, Snowdon, Claire, Entwistle, Vikki A., McDonald, Alison M., Grant, Adrian M., and Campbell, Marion K.
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CLINICAL medicine ,MEDICAL research ,MEDICAL experimentation on humans ,CLINICAL trials ,CASE studies ,CLINICAL pharmacology ,THERAPEUTICS - Abstract
Background: Publicly funded clinical trials require a substantial commitment of time and money. To ensure that sufficient numbers of patients are recruited it is essential that they address important questions in a rigorous manner and are managed well, adopting effective marketing strategies. Methods: Using methods of analysis drawn from management studies, this paper presents a structured assessment framework or reference model, derived from a case analysis of the MRC's CRASH trial, of 12 factors that may affect the success of the marketing and sales activities associated with clinical trials. Results: The case study demonstrates that trials need various categories of people to buy in -- hence, to be successful, trialists must embrace marketing strategies to some extent. Conclusion: The performance of future clinical trials could be enhanced if trialists routinely considered these factors. [ABSTRACT FROM AUTHOR]
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- 2007
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45. Does it matter if clinicians recruiting for a trial don't understand what the trial is really about? Qualitative study of surgeons' experiences of participation in a pragmatic multi-centre RCT.
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Ziebland, Sue, Featherstone, Katie, Snowdon, Claire, Barker, Karen, Frost, Helen, and Fairbank, Jeremy
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QUALITATIVE research ,CLINICAL trials ,PATIENTS ,ATTITUDE (Psychology) ,SURGEONS ,MEDICAL care - Abstract
Background: Qualitative methods are increasingly used to study the process of clinical trials and patients understanding of the rationale for trials, randomisation and reasons for taking part or refusing. Patients' understandings are inevitably influenced by the recruiting clinician's understanding of the trial, yet relatively little qualitative work has explored clinicians' perceptions and understandings of trials. This study interviewed surgeons shortly after the multi-centre, pragmatic RCT in which they had participated had been completed. Methods: We used in-depth interviews with surgeons who participated in the Spine Stabilisation Trial (a pragmatic RCT) to explore their understanding of the trial purpose and how this understanding had influenced their recruitment procedures and interpretation of the results. A purposive sample of eleven participating surgeons was chosen from 8 of the 15 UK trial centres. Results: Although the surgeons thought that the trial was addressing an important question there was little agreement about what this question was: although it was a trial of 'equivalent' treatments, some thought that it was a trial of surgery, others a trial of rehabilitation and others that it was exploring what to do with patients in whom all other treatment options had been unsuccessful. The surgeons we interviewed were not aware of the rationale for the pragmatic inclusion criteria and nearly all were completely baffled about the meaning of 'equipoise'. Misunderstandings about the entry criteria were an important source of confusion about the results and led to reluctance to apply the results to their own practice. Conclusion: The study suggests several lessons for the conduct of future multi-centre trials. Recruiting surgeons (and other clinicians) may not be familiar with the rationale for pragmatic designs and may need to be regularly reminded about the purpose during the study. Reassurance may be necessary that a pragmatic design is not considered a design fault. We conclude that it does matter if clinicians do not understand the rationale for the trial if, as we have shown here, their perception of the trial aims and methods adversely affects who they recruit; if their views affect what the patients are told; and if they mistakenly view the results as unscientific, unreliable and ultimately irrelevant to their practice. [ABSTRACT FROM AUTHOR]
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- 2007
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46. What influences recruitment to randomised controlled trials? A review of trials funded by two UK funding agencies.
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McDonald, Alison M., Knight, Rosemary C., Campbell, Marion K., Entwistle, Vikki A., Grant, Adrian M., Cook, Jonathan A., Elbourne, Diana R., Francis, David, Garcia, Jo, Roberts, Ian, and Snowdon, Claire
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MEDICAL research ,MEDICAL technology ,CHI-squared test ,STATISTICAL hypothesis testing ,CLINICAL trials - Abstract
Background: A commonly reported problem with the conduct of multicentre randomised controlled trials (RCTs) is that recruitment is often slower or more difficult than expected, with many trials failing to reach their planned sample size within the timescale and funding originally envisaged. The aim of this study was to explore factors that may have been associated with good and poor recruitment in a cohort of multicentre trials funded by two public bodies: the UK Medical Research Council (MRC) and the Health Technology Assessment (HTA) Programme. Methods: The cohort of trials was identified from the administrative databases held by the two funding bodies. 114 trials that recruited participants between 1994 and 2002 met the inclusion criteria. The full scientific applications and subsequent trial reports submitted by the trial teams to the funders provided the principal data sources. Associations between trial characteristics and recruitment success were tested using the Chi-squared test, or Fisher's exact test where appropriate. Results: Less than a third (31%) of the trials achieved their original recruitment target and half (53%) were awarded an extension. The proportion achieving targets did not appear to improve over time. The overall start to recruitment was delayed in 47 (41%) trials and early recruitment problems were identified in 77 (63%) trials. The inter-relationship between trial features and recruitment success was complex. A variety of strategies were employed to try to increase recruitment, but their success could not be assessed. Conclusion: Recruitment problems are complex and challenging. Many of the trials in the cohort experienced recruitment difficulties. Trials often required extended recruitment periods (sometimes supported by additional funds). While this is of continuing concern, success in addressing the trial question may be more important than recruitment alone. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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47. Equipoise: a case study of the views of clinicians involved in two neonatal trials.
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Garcia, Jo, Elbourne, Diana, and Snowdon, Claire
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MEDICAL experimentation on humans ,INFANT care ,NEONATOLOGISTS ,CLINICAL trials ,HUMAN error ,MEDICAL research - Abstract
Background: It is considered to be a fundamental ethical premise of human experimentation, that it should be carried out only where the effects of an intervention are unclear. The point at which it is considered that there is insufficient scientific and medical evidence to clearly state the superiority of an intervention has been termed equipoise. This concept has been the subject of much recent impassioned debate but little empirical research about the views of people involved in recruitment to randomized controlled trials (RCTs), and none in the particularly emotive area of neonatal intensive care. Methods: Thirty neonatologists recruiting into one or both of two neonatal RCTs in five centres in England were interviewed using a semi-structured schedule to explore their involvement in randomised trials. The interviews were tape-recorded and transcribed. Equipoise was one among a range of topics covered. Concepts relating to equipoise were identified by close reading of the entire interviews. Themes emerging from the data were noted in their contexts then discussed between the co-authors. Interviewees also completed a brief questionnaire about their demographic background, and their experience of research and RCTs. Results: Almost all the neonatologists used the concept of equipoise [using words and phrases such as uncertainty, lack of knowledge (or ignorance), strengths of views, and balancing of pros and cons] in their interview and, for most of them, equipoise seemed to be a useful term. They explored ideas about equipoise at the individual and community levels, and some linked equipoise with notions of the responsibility that should be exercised by the scientific and professional communities. They differed in the importance they gave to individual equipoise, and in how they reacted to threats to equipoise. Feelings of doubt about a trial and disturbed equipoise were more often expressed by more junior doctors. Conclusions: Our findings suggest that the concept of equipoise goes beyond the idea of uncertainty. In part this is because it includes the balancing of benefit and harm; this balancing is part of a professional obligation and requires engagement with 'expert' knowledge. Equipoise could therefore be seen as 'active' or 'responsible' uncertainty. Elucidation of this difficult concept may help to facilitate recruitment for both clinicians and parents in future trials and thereby help to find answers to important clinical questions. Clinical Trials 2004;1: 170 – 178. [ABSTRACT FROM AUTHOR]
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- 2004
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48. Factor Structure, Validity and Reliability of the Cambridge Worry Scale in a Pregnant Population.
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Green, Josephine M., Kafetsios, Konstantinos, Statham, Helen E., and Snowdon, Claire M.
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PREGNANT women ,ANXIETY ,WORRY - Abstract
This article presents the Cambridge Worry Scale (CWS), a content-based measure for assessing worries, and discusses its psychometric properties based on a longitudinal study of 1207 pregnant women. Principal components analysis revealed a four-factor structure of women's concerns during pregnancy: socio-medical, own health, socio-economic and relational. The measure demonstrated good reliability and validity. Total CWS scores were strongly associated with state and trait anxiety (convergent validity) but also had significant and unique predictive value for mood outcomes (discriminant validity). The CWS discriminated better between women with different reproductive histories than measures of state and trait anxiety. We conclude that the CWS is a reliable and valid tool for assessing the extent and content of worries in specific situations. [ABSTRACT FROM AUTHOR]
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- 2003
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49. 'You have to keep your nerve on a DMC.' Challenges for data monitoring committees in neonatal intensive care trials: qualitative accounts from the bracelet study
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Snowdon, Claire, Elbourne, Diana, Brocklehurst, Peter, Platt, Martin Ward, and Tasker, Robert
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- 2015
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50. Patients' quality of life following extracorporeal shock-wave lithotripsy and percutaneous nephrolithotomy for renal calculi.
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Mays, Nicholas B., Petruckevitch, Ann, Snowdon, Claire, Mays, N B, Petruckevitch, A, and Snowdon, C
- Published
- 1990
- Full Text
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