scholarly journals Extrapolating Parametric Survival Models in Health Technology Assessment: A Simulation Study

2020 ◽  
Vol 41 (1) ◽  
pp. 37-50
Author(s):  
Daniel Gallacher ◽  
Peter Kimani ◽  
Nigel Stallard
Keyword(s):  
Health Technology Assessment ◽  
Technology Assessment ◽  
Goodness Of Fit ◽  
Information Criterion ◽  
Health Technology ◽  
Survival Models ◽  
Fit Statistics ◽  
Long Term Treatment ◽  
Parametric Survival

Extrapolations of parametric survival models fitted to censored data are routinely used in the assessment of health technologies to estimate mean survival, particularly in diseases that potentially reduce the life expectancy of patients. Akaike’s information criterion (AIC) and Bayesian information criterion (BIC) are commonly used in health technology assessment alongside an assessment of plausibility to determine which statistical model best fits the data and should be used for prediction of long-term treatment effects. We compare fit and estimates of restricted mean survival time (RMST) from 8 parametric models and contrast models preferred in terms of AIC, BIC, and log-likelihood, without considering model plausibility. We assess the methods’ suitability for selecting a parametric model through simulation of data replicating the follow-up of intervention arms for various time-to-event outcomes from 4 clinical trials. Follow-up was replicated through the consideration of recruitment duration and minimum and maximum follow-up times. Ten thousand simulations of each scenario were performed. We demonstrate that the different methods can result in disagreement over the best model and that it is inappropriate to base model selection solely on goodness-of-fit statistics without consideration of hazard behavior and plausibility of extrapolations. We show that typical trial follow-up can be unsuitable for extrapolation, resulting in unreliable estimation of multiple parameter models, and infer that selecting survival models based only on goodness-of-fit statistics is unsuitable due to the high level of uncertainty in a cost-effectiveness analysis. This article demonstrates the potential problems of overreliance on goodness-of-fit statistics when selecting a model for extrapolation. When follow-up is more mature, BIC appears superior to the other selection methods, selecting models with the most accurate and least biased estimates of RMST.

scholarly journals Prophylactic levofloxacin to prevent infections in newly diagnosed symptomatic myeloma: the TEAMM RCT

2019 ◽  
Vol 23 (62) ◽  
pp. 1-94 ◽  
Author(s):  
Mark T Drayson ◽  
Stella Bowcock ◽  
Tim Planche ◽  
Gulnaz Iqbal ◽  
Guy Pratt ◽  
...  
Keyword(s):  
Overall Survival ◽  
Cost Effectiveness ◽  
Health Technology Assessment ◽  
Technology Assessment ◽  
Health Technology ◽  
Newly Diagnosed ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Febrile Episodes

Background Myeloma causes profound immunodeficiency and recurrent serious infections. There are approximately 5500 new UK cases of myeloma per annum, and one-quarter of patients will have a serious infection within 3 months of diagnosis. Newly diagnosed patients may benefit from antibiotic prophylaxis to prevent infection. However, the use of prophylaxis has not been established in myeloma and may be associated with health-care-associated infections (HCAIs), such as Clostridium difficile. There is a need to assess the benefits and cost-effectiveness of the use of antibacterial prophylaxis against any risks in a double-blind, placebo-controlled, randomised clinical trial. Objectives To assess the risks, benefits and cost-effectiveness of prophylactic levofloxacin in newly diagnosed symptomatic myeloma patients. Design Multicentre, randomised, double-blind, placebo-controlled trial. A central telephone randomisation service used a minimisation computer algorithm to allocate treatments in a 1 : 1 ratio. Setting A total of 93 NHS hospitals throughout England, Northern Ireland and Wales. Participants A total of 977 patients with newly diagnosed symptomatic myeloma. Intervention Patients were randomised to receive levofloxacin or placebo tablets for 12 weeks at the start of antimyeloma treatment. Treatment allocation was blinded and balanced by centre, estimated glomerular filtration rate and intention to give high-dose chemotherapy with autologous stem cell transplantation. Follow-up was at 4-week intervals up to 16 weeks, with a further follow-up at 1 year. Main outcome measures The primary outcome was to assess the number of febrile episodes (or deaths) in the first 12 weeks from randomisation. Secondary outcomes included number of deaths and infection-related deaths, days in hospital, carriage and invasive infections, response to antimyeloma treatment and its relation to infection, quality of life and overall survival within the first 12 weeks and beyond. Results In total, 977 patients were randomised (levofloxacin, n = 489; placebo, n = 488). A total of 134 (27%) events (febrile episodes, n = 119; deaths, n = 15) occurred in the placebo arm and 95 (19%) events (febrile episodes, n = 91; deaths, n = 4) occurred in the levofloxacin arm; the hazard ratio for time to first event (febrile episode or death) within the first 12 weeks was 0.66 (95% confidence interval 0.51 to 0.86; p = 0.002). Levofloxacin also reduced other infections (144 infections from 116 patients) compared with placebo (179 infections from 133 patients; p-trend of 0.06). There was no difference in new acquisitions of C. difficile, methicillin-resistant Staphylococcus aureus and extended-spectrum beta-lactamase Gram-negative organisms when assessed up to 16 weeks. Levofloxacin produced slightly higher quality-adjusted life-year gains over 16 weeks, but had associated higher costs for health resource use. With a median follow-up of 52 weeks, there was no significant difference in overall survival (p = 0.94). Limitations Short duration of prophylactic antibiotics and cost-effectiveness. Conclusions During the 12 weeks from new diagnosis, the addition of prophylactic levofloxacin to active myeloma treatment significantly reduced febrile episodes and deaths without increasing HCAIs or carriage. Future work should aim to establish the optimal duration of antibiotic prophylaxis and should involve the laboratory investigation of immunity, inflammation and disease activity on stored samples funded by the TEAMM (Tackling Early Morbidity and Mortality in Myeloma) National Institute for Health Research Efficacy and Mechanism Evaluation grant (reference number 14/24/04). Trial registration Current Controlled Trials ISRCTN51731976. Funding details This project was funded by the NIHR Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 23, No. 62. See the NIHR Journals Library website for further project information.

scholarly journals Application of Health Technology Assessment (HTA) to Evaluate New Laboratory Tests in a Health System: A Case Study of Bladder Cancer Testing

2020 ◽  
Vol 7 ◽  
pp. 237428952096822
Author(s):  
Erik J. Landaas ◽  
Ashley M. Eckel ◽  
Jonathan L. Wright ◽  
Geoffrey S. Baird ◽  
Ryan N. Hansen ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Pilot Study ◽  
Health Technology Assessment ◽  
Technology Assessment ◽  
Real World ◽  
Health Technology ◽  
Test System ◽  
Real World Data ◽  
World Data

We describe the methods and decision from a health technology assessment of a new molecular test for bladder cancer (Cxbladder), which was proposed for adoption to our send-out test menu by urology providers. The Cxbladder health technology assessment report contained mixed evidence; predominant concerns were related to the test’s low specificity and high cost. The low specificity indicated a high false-positive rate, which our laboratory formulary committee concluded would result in unnecessary confirmatory testing and follow-up. Our committee voted unanimously to not adopt the test system-wide for use for the initial diagnosis of bladder cancer but supported a pilot study for bladder cancer recurrence surveillance. The pilot study used real-world data from patient management in the scenario in which a patient is evaluated for possible recurrent bladder cancer after a finding of atypical cytopathology in the urine. We evaluated the type and number of follow-up tests conducted including urine cytopathology, imaging studies, repeat cystoscopy evaluation, biopsy, and repeat Cxbladder and their test results. The pilot identified ordering challenges and suggested potential use cases in which the results of Cxbladder affected a change in management. Our health technology assessment provided an objective process to efficiently review test performance and guide new test adoption. Based on our pilot, there were real-world data indicating improved clinician decision-making among select patients who underwent Cxbladder testing.

scholarly journals Enhanced motivational interviewing for reducing weight and increasing physical activity in adults with high cardiovascular risk: the MOVE IT three-arm RCT

2019 ◽  
Vol 23 (69) ◽  
pp. 1-144
Author(s):  
Khalida Ismail ◽  
Daniel Stahl ◽  
Adam Bayley ◽  
Katherine Twist ◽  
Kurtis Stewart ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cost Effectiveness ◽  
Motivational Interviewing ◽  
Health Technology Assessment ◽  
Technology Assessment ◽  
Health Technology ◽  
Research Centre ◽  
Cvd Risk ◽  
Objective Evidence

Background Motivational interviewing (MI) enhanced with behaviour change techniques (BCTs) and deployed by health trainers targeting multiple risk factors for cardiovascular disease (CVD) may be more effective than interventions targeting a single risk factor. Objectives The clinical effectiveness and cost-effectiveness of an enhanced lifestyle motivational interviewing intervention for patients at high risk of CVD in group settings versus individual settings and usual care (UC) in reducing weight and increasing physical activity (PA) were tested. Design This was a three-arm, single-blind, parallel randomised controlled trial. Setting A total of 135 general practices across all 12 South London Clinical Commissioning Groups were recruited. Participants A total of 1742 participants aged 40–74 years with a ≥ 20.0% risk of a CVD event in the following 10 years were randomised. Interventions The intervention was designed to integrate MI and cognitive–behavioural therapy (CBT), delivered by trained healthy lifestyle facilitators in 10 sessions over 1 year, in group or individual format. The control group received UC. Randomisation Simple randomisation was used with computer-generated randomisation blocks. In each block, 10 participants were randomised to the group, individual or UC arm in a 4 : 3 : 3 ratio. Researchers were blind to the allocation. Main outcome measures The primary outcomes are change in weight (kg) from baseline and change in PA (average number of steps per day over 1 week) from baseline at the 24-month follow-up, with an interim follow-up at 12 months. An economic evaluation estimates the relative cost-effectiveness of each intervention. Secondary outcomes include changes in low-density lipoprotein cholesterol and CVD risk score. Results The mean age of participants was 69.75 years (standard deviation 4.11 years), 85.5% were male and 89.4% were white. At the 24-month follow-up, the group and individual intervention arms were not more effective than UC in increasing PA [mean 70.05 steps, 95% confidence interval (CI) –288 to 147.9 steps, and mean 7.24 steps, 95% CI –224.01 to 238.5 steps, respectively] or in reducing weight (mean –0.03 kg, 95% CI –0.49 to 0.44 kg, and mean –0.42 kg, 95% CI –0.93 to 0.09 kg, respectively). At the 12-month follow-up, the group and individual intervention arms were not more effective than UC in increasing PA (mean 131.1 steps, 95% CI –85.28 to 347.48 steps, and mean 210.22 steps, 95% CI –19.46 to 439.91 steps, respectively), but there were reductions in weight for the group and individual intervention arms compared with UC (mean –0.52 kg, 95% CI –0.90 to –0.13 kg, and mean –0.55 kg, 95% CI –0.95 to –0.14 kg, respectively). The group intervention arm was not more effective than the individual intervention arm in improving outcomes at either follow-up point. The group and individual interventions were not cost-effective. Conclusions Enhanced MI, in group or individual formats, targeted at members of the general population with high CVD risk is not effective in reducing weight or increasing PA compared with UC. Future work should focus on ensuring objective evidence of high competency in BCTs, identifying those with modifiable factors for CVD risk and improving engagement of patients and primary care. Trial registration Current Controlled Trials ISRCTN84864870. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 23, No. 69. See the NIHR Journals Library website for further project information. This research was part-funded by the NIHR Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King’s College London.

scholarly journals Intratumoural immune signature to identify patients with primary colorectal cancer who do not require follow-up after resection: an observational study

2021 ◽  
Vol 25 (2) ◽  
pp. 1-32
Author(s):  
John N Primrose ◽  
Siân A Pugh ◽  
Gareth Thomas ◽  
Matthew Ellis ◽  
Karwan Moutasim ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Observational Study ◽  
Health Technology Assessment ◽  
Technology Assessment ◽  
Tissue Microarrays ◽  
Health Technology ◽  
Cell Counting ◽  
Primary Colorectal Cancer ◽  
Immune Signature

Background Following surgical and adjuvant treatment of primary colorectal cancer, many patients are routinely followed up with axial imaging (most commonly computerised tomography imaging) and blood carcinoembryonic antigen (a tumour marker) testing. Because fewer than one-fifth of patients will relapse, a large number of patients are followed up unnecessarily. Objectives To determine whether or not the intratumoural immune signature could identify a cohort of patients with a relapse rate so low that follow-up is unnecessary. Design An observational study based on a secondary tissue collection of the tumours from participants in the FACS (Follow-up After Colorectal Cancer Surgery) trial. Setting and participants Formalin-fixed paraffin-embedded tumour tissue was obtained from 550 out of 1202 participants in the FACS trial. Tissue microarrays were constructed and stained for cluster of differentiation (CD)3+ and CD45RO+ T lymphocytes as well as standard haematoxylin and eosin staining, with a view to manual and, subsequently, automated cell counting. Results The tissue microarrays were satisfactorily stained for the two immune markers. Manual cell counting proved possible on the arrays, but manually counting the number of cores for the entire study was found to not be feasible; therefore, an attempt was made to use automatic cell counting. Although it is clear that this approach is workable, there were both hardware and software problems; therefore, reliable data could not be obtained within the time frame of the study. Limitations The main limitations were the inability to use machine counting because of problems with both hardware and software, and the loss of critical scientific staff. Findings from this research indicate that this approach will be able to count intratumoural immune cells in the long term, but whether or not the original aim of the project proved possible is not known. Conclusions The project was not successful in its aim because of the failure to achieve a reliable counting system. Future work Further work is needed to perfect immune cell machine counting and then complete the objectives of this study that are still relevant. Trial registration Current Controlled Trials ISRCTN41458548. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 25, No. 2. See the NIHR Journals Library website for further project information.

scholarly journals Pressure garment to prevent abnormal scarring after burn injury in adults and children: the PEGASUS feasibility RCT and mixed-methods study

2018 ◽  
Vol 22 (36) ◽  
pp. 1-162 ◽  
Author(s):  
Naiem Moiemen ◽  
Jonathan Mathers ◽  
Laura Jones ◽  
Jonathan Bishop ◽  
Philip Kinghorn ◽  
...  
Keyword(s):  
Mixed Methods ◽  
Health Technology Assessment ◽  
Technology Assessment ◽  
Standard Care ◽  
Pilot Trial ◽  
Health Technology ◽  
Burn Scar ◽  
Individual Interviews ◽  
Scar Management

Background Eleven million people suffer a fire-related injury worldwide every year, and 71% have significant scarring. Pressure garment therapy (PGT) is a standard part of burn scar management, but there is little evidence of its clinical effectiveness or cost-effectiveness. Objective To identify the barriers to, and the facilitators of, conducting a randomised controlled trial (RCT) of burn scar management with and without PGT and test whether or not such a trial is feasible. Design Web-based surveys, semistructured individual interviews, a pilot RCT including a health economic evaluation and embedded process evaluation. Setting UK NHS burns services. Interviews and the pilot trial were run in seven burns services. Participants Thirty NHS burns services and 245 staff provided survey responses and 15 staff participated in individual interviews. Face-to-face interviews were held with 24 adult patients and 16 parents of paediatric patients who had undergone PGT. The pilot trial recruited 88 participants (57 adults and 31 children) who were at risk of hypertrophic scarring and were considered suitable for scar management therapy. Interviews were held with 34 participants soon after recruitment, with 23 participants at 12 months and with eight staff from six sites at the end of the trial. Interventions The intervention was standard care with pressure garments. The control was standard care comprising scar management techniques involving demonstration and recommendations to undertake massage three or four times per day with moisturiser, silicone treatment, stretching and other exercises. Main outcome measures Feasibility was assessed by eligibility rates, consent rates, retention in allocated arms, adherence with treatment and follow-up and completion of outcome assessments. The outcomes from interview-based studies were core outcome domains and barriers to, and facilitators of, trial participation and delivery. Results NHS burns services treat 2845 patients per annum (1476 paediatric and 1369 adult) and use pressure garments for 6–18 months, costing £2,171,184. The majority of staff perceived a need for a RCT of PGT, but often lacked equipoise around the research question and PGT as a treatment. Strong views about the use of PGT have the potential to influence the conduct of a full-scale RCT. A range of outcome domains was identified as important via the qualitative research: perceptions of appearance, specific scar characteristics, function, pain and itch, broader psychosocial outcomes and treatment burden. The outcome tools evaluated in the pilot trial did not cover all of these domains. The planned 88 participants were recruited: the eligibility rate was 88% [95% confidence interval (CI) 83% to 92%], the consent rate was 47% (95% CI 40% to 55%). Five (6%) participants withdrew, 14 (16%) were lost to follow-up and 8 (9%) crossed over. Adherence was as in clinical practice. Completion of outcomes was high for adult patients but poorer from parents of paediatric patients, particularly for quality of life. Sections on range of movement and willingness to pay were found to be challenging and poorly completed. Limitations The Brisbane Burn Scar Impact Profile appears more suitable in terms of conceptual coverage than the outcome scales that were used in the trial but was not available at the time of the study. Conclusions A definitive RCT of PGT in burn scar management appears feasible. However, staff attitudes to the use of pressure garments may lead to biases, and the provision of training and support to sites and an ongoing assessment of trial processes are required. Future work We recommend that any future trial include an in-depth mixed-methods recruitment investigation and a process evaluation to account for this. Trial registration Current Controlled Trials ISRCTN34483199. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 22, No. 36. See the NIHR Journals Library website for further project information

VP18 Early Awareness And Alert System In Sweden: History And Current Status

2017 ◽  
Vol 33 (S1) ◽  
pp. 154-155
Author(s):  
Irene Eriksson ◽  
Björn Wettermark ◽  
Marie Persson ◽  
Morgan Edström ◽  
Brian Godman ◽  
...  
Keyword(s):  
Health Technology Assessment ◽  
Technology Assessment ◽  
Grey Literature ◽  
National Level ◽  
Health Technology ◽  
New Drugs ◽  
Current Status ◽  
Early Assessment ◽  
Health Technologies

INTRODUCTION:Over the past decades, early awareness and alert (EAA) activities and systems have gained importance and become a key early Health Technology Assessment (HTA) tool. While a pioneer in HTA, Sweden had no national level EAA activities until recently. We describe the evolution and current status of the Swedish EAA System.METHODS:This was a historical analysis based on the knowledge and experience of the authors supplemented by a targeted review of published and grey literature, as well as documents produced by or relating to the Swedish EAA System. Key milestones and a description of the current state of the Swedish EAA System are presented.RESULTS:Initiatives to establish a system for the identification and assessment of emerging health technologies in Sweden date back to the 1980s. Since the 1990s, the Swedish Agency for Health Technology Assessment and Assessment of Social Services (SBU) supported the development of EuroScan and was one of its founding members. In the mid-2000s, an independent regional initiative, driven by the Stockholm Drug and Therapeutics Committee, resulted in the establishment of a regional horizon scanning unit. By 2009, this work had expanded to a collaboration between the four biggest regions in Sweden. The following year it was further expanded to the national level. Today, the Swedish EAA System carries out identification, filtration and prioritization of new drugs, early assessment of the prioritized drugs, and dissemination of the information. Its outputs are used to select new drugs for inclusion in the Swedish national process for managed introduction and follow-up.CONCLUSIONS:The Swedish EAA System started as a regional initiative and rapidly grew to become a national level activity. An important feature of the system today is its complete integration into the national process for managed introduction and follow-up of new drugs. The system will continue to evolve as a response both to the changing landscape of health innovations and to new policy initiatives at the regional, national and international levels.

Are Key Principles for improved health technology assessment supported and used by health technology assessment organizations?

2010 ◽  
Vol 26 (1) ◽  
pp. 71-78 ◽  
Author(s):  
◽  
Peter J. Neumann ◽  
Michael F. Drummond ◽  
Bengt Jönsson ◽  
Bryan R. Luce ◽  
...  
Keyword(s):  
Decision Making ◽  
Health Technology Assessment ◽  
Societal Perspective ◽  
Technology Assessment ◽  
Working Group ◽  
Good Practice ◽  
Health Technology ◽  
Wide Range ◽  
Decision Making Processes

Previously, our group—the International Working Group for HTA Advancement—proposed a set of fifteen Key Principles that could be applied to health technology assessment (HTA) programs in different jurisdictions and across a range of organizations and perspectives. In this commentary, we investigate the extent to which these principles are supported and used by fourteen selected HTA organizations worldwide. We find that some principles are broadly supported: examples include being explicit about HTA goals and scope; considering a wide range of evidence and outcomes; and being unbiased and transparent. Other principles receive less widespread support: examples are addressing issues of generalizability and transferability; being transparent on the link between HTA findings and decision-making processes; considering a full societal perspective; and monitoring the implementation of HTA findings. The analysis also suggests a lack of consensus in the field about some principles—for example, considering a societal perspective. Our study highlights differences in the uptake of key principles for HTA and indicates considerable room for improvement for HTA organizations to adopt principles identified to reflect good HTA practices. Most HTA organizations espouse certain general concepts of good practice—for example, assessments should be unbiased and transparent. However, principles that require more intensive follow-up—for example, monitoring the implementation of HTA findings—have received little support and execution.

scholarly journals Vertebral artery stenting to prevent recurrent stroke in symptomatic vertebral artery stenosis: the VIST RCT

2019 ◽  
Vol 23 (41) ◽  
pp. 1-30
Author(s):  
Hugh S Markus ◽  
Susanna C Larsson ◽  
John Dennis ◽  
Wilhelm Kuker ◽  
Ursula G Schulz ◽  
...  
Keyword(s):  
Health Technology Assessment ◽  
Vertebral Artery ◽  
Technology Assessment ◽  
Recurrent Stroke ◽  
Health Technology ◽  
Controlled Trials ◽  
Treatment Allocation ◽  
Fatal Stroke ◽  
End Point

Background Symptomatic vertebral artery (VA) stenosis has been associated with a markedly increased early risk of recurrent stroke. VA stenosis can be treated with stenting; however, there are few data from randomised controlled trials evaluating the efficacy of this treatment, and recent studies in intracranial stenosis have suggested that stenting may be associated with increased risk. Objective The Vertebral artery Ischaemia Stenting Trial (VIST) was established to compare the risks and benefits of vertebral angioplasty and stenting with best medical treatment (BMT) alone for recently symptomatic VA stenosis. Design VIST was a prospective, randomised, open, parallel, blinded end-point clinical trial. Setting The trial was performed in 14 hospitals in the UK. Participants Recruitment began on 23 October 2008 and follow-up ended on 1 March 2016, by which time every patient had been followed up for at least 1 year. Participants had to have symptomatic vertebral stenosis of at least 50% resulting from presumed atheromatous disease. Both patients and clinicians were aware of treatment allocation; however, an independent adjudication committee, masked to treatment allocation, assessed all primary and secondary end points. Interventions Participants were randomly assigned (1 : 1) to either vertebral angioplasty/stenting plus BMT (n = 91) or BMT alone (n = 88). A total of 182 patients were initially enrolled; however, three patients (two who withdrew after randomisation and one who did not attend after the initial randomisation visit) did not contribute any follow-up data and were excluded. None of these three patients had outcome events. Main outcomes and measures The primary end point was the occurrence of fatal or non-fatal stroke in any arterial territory during follow-up. Results The median follow-up was 3.5 (interquartile range 2.1–4.7) years. Of the 61 patients who were stented, 48 (78.7%) had extracranial stenosis and 13 (21.3%) had intracranial stenosis. No perioperative complications occurred with extracranial stenting; two strokes occurred during intracranial stenting. The primary end point occurred in five patients (including one fatal stroke) in the stent group and in 12 patients (including two fatal strokes) in the medical group (giving a hazard ratio of 0.40, 95% confidence interval 0.14 to 1.13; p = 0.08), with an absolute risk reduction of 25 strokes per 1000 person-years. Limitations The study was underpowered because it failed to reach target recruitment. The high rate of non-confirmation of stenosis in the stented group of the trial was a second limitation. Conclusions The trial found no difference in risk of the primary end point between the two groups. Future Post hoc analysis suggested that stenting could be associated with a reduced recurrent stroke risk in symptomatic VA and further studies are now required to confirm these findings, particularly in extracranial VA stenosis where complication rates with stenting were confirmed to be very low. Trial registration Current Controlled Trials ISRCTN95212240. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 23, No. 41. See the NIHR Journals Library website for further project information. In addition, funding for the pilot phase was provided by the Stroke Association.

scholarly journals Open urethroplasty versus endoscopic urethrotomy for recurrent urethral stricture in men: the OPEN RCT

2020 ◽  
Vol 24 (61) ◽  
pp. 1-110
Author(s):  
Robert Pickard ◽  
Beatriz Goulao ◽  
Sonya Carnell ◽  
Jing Shen ◽  
Graeme MacLennan ◽  
...  
Keyword(s):  
Cost Effectiveness ◽  
Health Technology Assessment ◽  
Urethral Stricture ◽  
Technology Assessment ◽  
Cost Effective ◽  
Health Technology ◽  
Urinary Symptoms ◽  
Current Evidence ◽  
Endoscopic Urethrotomy

Background Men who suffer recurrence of bulbar urethral stricture have to decide between endoscopic urethrotomy and open urethroplasty to manage their urinary symptoms. Evidence of relative clinical effectiveness and cost-effectiveness is lacking. Objectives To assess benefit, harms and cost-effectiveness of open urethroplasty compared with endoscopic urethrotomy as treatment for recurrent urethral stricture in men. Design Parallel-group, open-label, patient-randomised trial of allocated intervention with 6-monthly follow-ups over 24 months. Target sample size was 210 participants providing outcome data. Participants, clinicians and local research staff could not be blinded to allocation. Central trial staff were blinded when needed. Setting UK NHS with recruitment from 38 hospital sites. Participants A total of 222 men requiring operative treatment for recurrence of bulbar urethral stricture who had received at least one previous intervention for stricture. Interventions A centralised randomisation system using random blocks allocated participants 1 : 1 to open urethroplasty (experimental group) or endoscopic urethrotomy (control group). Main outcome measures The primary clinical outcome was control of urinary symptoms. Cost-effectiveness was assessed by cost per quality-adjusted life-year (QALY) gained over 24 months. The main secondary outcome was the need for reintervention for stricture recurrence. Results The mean difference in the area under the curve of repeated measurement of voiding symptoms scored from 0 (no symptoms) to 24 (severe symptoms) between the two groups was –0.36 [95% confidence interval (CI) –1.78 to 1.02; p = 0.6]. Mean voiding symptom scores improved between baseline and 24 months after randomisation from 13.4 [standard deviation (SD) 4.5] to 6 (SD 5.5) for urethroplasty group and from 13.2 (SD 4.7) to 6.4 (SD 5.3) for urethrotomy. Reintervention was less frequent and occurred earlier in the urethroplasty group (hazard ratio 0.52, 95% CI 0.31 to 0.89; p = 0.02). There were two postoperative complications requiring reinterventions in the group that received urethroplasty and five, including one death from pulmonary embolism, in the group that received urethrotomy. Over 24 months, urethroplasty cost on average more than urethrotomy (cost difference £2148, 95% CI £689 to £3606) and resulted in a similar number of QALYs (QALY difference –0.01, 95% CI –0.17 to 0.14). Therefore, based on current evidence, urethrotomy is considered to be cost-effective. Limitations We were able to include only 69 (63%) of the 109 men allocated to urethroplasty and 90 (80%) of the 113 men allocated to urethrotomy in the primary complete-case intention-to-treat analysis. Conclusions The similar magnitude of symptom improvement seen for the two procedures over 24 months of follow-up shows that both provide effective symptom control. The lower likelihood of further intervention favours urethroplasty, but this had a higher cost over the 24 months of follow-up and was unlikely to be considered cost-effective. Future work Formulate methods to incorporate short-term disutility data into cost-effectiveness analysis. Survey pathways of care for men with urethral stricture, including the use of enhanced recovery after urethroplasty. Establish a pragmatic follow-up schedule to allow national audit of outcomes following urethral surgery with linkage to NHS Hospital Episode Statistics. Trial registration Current Controlled Trials ISRCTN98009168. Funding This project was funded by the NIHR Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 61. See the NIHR Journals Library website for further project information.

scholarly journals Fluoxetine to improve functional outcomes in patients after acute stroke: the FOCUS RCT

2020 ◽  
Vol 24 (22) ◽  
pp. 1-94
Author(s):  
Martin Dennis ◽  
John Forbes ◽  
Catriona Graham ◽  
Maree Hackett ◽  
Graeme J Hankey ◽  
...  
Keyword(s):  
Health Care ◽  
Confidence Interval ◽  
Health Technology Assessment ◽  
Technology Assessment ◽  
Controlled Trial ◽  
Health Technology ◽  
Stroke Recovery ◽  
Modified Rankin Scale ◽  
Treatment Allocation

Background Our Cochrane review of selective serotonin inhibitors for stroke recovery indicated that fluoxetine may improve functional recovery, but the trials were small and most were at high risk of bias. Objectives The Fluoxetine Or Control Under Supervision (FOCUS) trial tested the hypothesis that fluoxetine improves recovery after stroke. Design The FOCUS trial was a pragmatic, multicentre, parallel-group, individually randomised, placebo-controlled trial. Setting This trial took place in 103 UK hospitals. Participants Patients were eligible if they were aged ≥ 18 years, had a clinical stroke diagnosis, with focal neurological deficits, between 2 and 15 days after onset. Interventions Patients were randomly allocated 20 mg of fluoxetine once per day or the matching placebo for 6 months via a web-based system using a minimisation algorithm. Main outcome measures The primary outcome was the modified Rankin Scale at 6 months. Patients, carers, health-care staff and the trial team were masked to treatment allocation. Outcome was assessed at 6 and 12 months after randomisation. Patients were analysed by their treatment allocation as specified in a published statistical analysis plan. Results Between 10 September 2012 and 31 March 2017, we recruited 3127 patients, 1564 of whom were allocated fluoxetine and 1563 of whom were allocated placebo. The modified Rankin Scale score at 6 months was available for 1553 out of 1564 (99.3%) of those allocated fluoxetine and 1553 out of 1563 (99.4%) of those allocated placebo. The distribution across modified Rankin Scale categories at 6 months was similar in the two groups (common odds ratio adjusted for minimisation variables 0.951, 95% confidence interval 0.839 to 1.079; p = 0.439). Compared with placebo, patients who were allocated fluoxetine were less likely to develop a new episode of depression by 6 months [210 (13.0%) vs. 269 (16.9%), difference –3.78%, 95% confidence interval –1.26% to –6.30%; p = 0.003], but had more bone fractures [45 (2.9%) vs. 23 (1.5%), difference 1.41%, 95% confidence interval 0.38% to 2.43%; p = 0.007]. There were no statistically significant differences in any other recorded events at 6 or 12 months. Health economic analyses showed no differences between groups in health-related quality of life, hospital bed usage or health-care costs. Limitations Some non-adherence to trial medication, lack of face-to-face assessment of neurological status at follow-up and lack of formal psychiatric diagnosis during follow-up. Conclusions 20 mg of fluoxetine daily for 6 months after acute stroke did not improve patients’ functional outcome but decreased the occurrence of depression and increased the risk of fractures. These data inform decisions about using fluoxetine after stroke to improve functional outcome or to prevent or treat mood disorders. The Assessment oF FluoxetINe In sTroke recoverY (AFFINITY) (Australasia/Vietnam) and Efficacy oF Fluoxetine – a randomisEd Controlled Trial in Stroke (EFFECTS) (Sweden) trials recruited an additional 2780 patients and will report their results in 2020. These three trials have an almost identical protocol, which was collaboratively developed. Our planned individual patient data meta-analysis will provide more precise estimates of the effects of fluoxetine after stroke and indicate whether or not effects vary depending on patients’ characteristics and health-care setting. Trial registration Current Controlled Trials ISRCTN83290762. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 22. See the NIHR Journals Library website for further project information. The Stroke Association (reference TSA 2011101) funded the start-up phase.

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