scholarly journals Application of the iBox prognostication system as a surrogate endpoint in the TRANSFORM randomised controlled trial: proof-of-concept study

BMJ Open ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. e052138
Author(s):  
Olivier Aubert ◽  
Gillian Divard ◽  
Julio Pascual ◽  
Federico Oppenheimer ◽  
Claudia Sommerer ◽  
...  
Keyword(s):  
Randomised Controlled Trial ◽  
Graft Survival ◽  
Controlled Trial ◽  
Surrogate Endpoint ◽  
Proof Of Concept ◽  
Allograft Survival ◽  
Randomised Controlled ◽  
Pharmaceutical Agents ◽  
Post Randomisation

ObjectivesDevelopment of pharmaceutical agents in transplantation is currently limited by long waits for hard endpoints. We applied a validated integrative risk-prognostication system integrative Box (iBox) as a surrogate endpoint to the TRANSFORM Study, a large randomised controlled trial, to project individual patient long-term kidney allograft survival from 1 year to 11 years after randomisation.DesignPost-hoc analysis of a randomised open-label controlled trial.SettingMulticentre study including 186 centres in 42 countries worldwide.Participants2037 de novo kidney transplant recipients.InterventionParticipants were randomised (1:1) to receive everolimus with reduced-exposure calcineurin inhibitor (EVR+rCNI) or mycophenolic acid with standard-exposure CNI (MPA+sCNI).Primary outcome measureThe iBox scores were computed for each participant at 1 year after randomisation using functional, immunological and histological parameters. Individual long-term death-censored allograft survival over 4, 6 and 11 years after randomisation was projected with the iBox risk-prognostication system.ResultsOverall, 940 patients receiving EVR+rCNI and 932 receiving MPA+sCNI completed the 1-year visit. iBox scores generated at 1 year yielded graft survival prediction rates of 90.9% vs 92.1%, 87.9% vs 89.5%, and 80.0% vs 82.4% in the EVR+rCNI versus MPA+sCNI arms at 4, 6, and 11 years post-randomisation, respectively (all differences below the 10% non-inferiority margin defined by study protocol). Inclusion of immunological and histological Banff diagnoses parameters in iBox scores resulted in comparable and non-inferior predicted graft survival for both treatments.ConclusionsThis proof-of-concept study provides the first application of a validated prognostication system as a surrogate endpoint in the field of transplantation. The iBox system, by projecting kidney allograft survival up to 11 years post-randomisation, confirms the non-inferiority of EVR+rCNI versus MPA+sCNI regimen. Given the current process engaged for surrogate endpoints qualification, this study illustrates the potential to fast track development of pharmaceutical agents.Trial registration numberTRANSFORM trial: NCT01950819.iBox prognostication system: NCT03474003.

scholarly journals Nurse-based secondary preventive follow-up by telephone reduced recurrence of cardiovascular events: a randomised controlled trial

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Anna-Lotta Irewall ◽  
Anders Ulvenstam ◽  
Anna Graipe ◽  
Joachim Ögren ◽  
Thomas Mooe
Keyword(s):  
Randomised Controlled Trial ◽  
Primary Endpoint ◽  
Cardiovascular Events ◽  
Controlled Trial ◽  
Control Group ◽  
Coronary Syndrome ◽  
Secondary Endpoints ◽  
Randomised Controlled

AbstractEnhanced follow-up is needed to improve the results of secondary preventive care in patients with established cardiovascular disease. We examined the effect of long-term, nurse-based, secondary preventive follow-up by telephone on the recurrence of cardiovascular events. Open, randomised, controlled trial with two parallel groups. Between 1 January 2010 and 31 December 2014, consecutive patients (n = 1890) admitted to hospital due to stroke, transient ischaemic attack (TIA), or acute coronary syndrome (ACS) were included. Participants were randomised (1:1) to nurse-based telephone follow-up (intervention, n = 944) or usual care (control, n = 946) and followed until 31 December 2017. The primary endpoint was a composite of stroke, myocardial infarction, cardiac revascularisation, and cardiovascular death. The individual components of the primary endpoint, TIA, and all-cause mortality were analysed as secondary endpoints. The assessment of outcome events was blinded to study group assignment. After a mean follow-up of 4.5 years, 22.7% (n = 214) of patients in the intervention group and 27.1% (n = 256) in the control group reached the primary composite endpoint (HR 0.81, 95% CI 0.68–0.97; ARR 4.4%, 95% CI 0.5–8.3). Secondary endpoints did not differ significantly between groups. Nurse-based secondary preventive follow-up by telephone reduced the recurrence of cardiovascular events during long-term follow-up.

scholarly journals Long-term outcomes of two-stage, immediate and delayed breast reconstruction with polyurethane-covered versus textured implants: protocol of a prospective, multicentre randomised controlled trial (TIPI trial)

BMJ Open ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. e044219
Author(s):  
J X Harmeling ◽  
Kevin Peter Cinca ◽  
Eleni-Rosalina Andrinopoulou ◽  
Eveline M L Corten ◽  
M A Mureau
Keyword(s):  
Randomised Controlled Trial ◽  
Breast Reconstruction ◽  
Controlled Trial ◽  
Capsular Contracture ◽  
Tissue Expander ◽  
Complication Rates ◽  
Two Stage ◽  
Randomised Controlled

IntroductionTwo-stage implant-based breast reconstruction is the most commonly performed postmastectomy reconstructive technique. During the first stage, a tissue expander creates a sufficiently large pocket for the definite breast implant placed in the second stage. Capsular contracture is a common long-term complication associated with implant-based breast reconstruction, causing functional complaints and often requiring reoperation. The exact aetiology is still unknown, but a relationship between the outer surface of the implant and the probability of developing capsular contracture has been suggested. The purpose of this study is to determine whether polyurethane-covered implants result in a different capsular contracture rate than textured implants.Methods and analysisThe Textured Implants versus Polyurethane-covered Implants (TIPI) trial is a multicentre randomised controlled trial with a 1:1 allocation rate and a follow-up of 10 years. A total of 321 breasts of female adults undergoing a two-stage breast reconstruction will be enrolled. The primary outcome is capsular contracture at 10-year follow-up which is graded with the modified Baker classification. It is analysed with survival analysis using a frailty model for clustered interval-censored data, with both an intention-to-treat and per-protocol approach. Secondary outcomes are other complication rates, surgical revision rate, patient satisfaction and quality of life and user-friendliness. Outcomes are measured 2 weeks, 6 months, 1, 2, 3, 5 and 10 years postoperatively. Interim analysis is performed when 1-year, 3-year and 5-year follow-up is completed.Ethics and disseminationThe trial has been reviewed and approved by the Medical Research Ethics Committee of the Erasmus MC, University Medical Centre Rotterdam (MEC-2018-126) and locally by each participating centre. Written informed consent will be obtained from each study participant. The results will be disseminated by publication in peer-reviewed journals.Trial registrationNTR7265.

scholarly journals Thirty-year outcome of anxiety and depressive disorders and personality status: comprehensive evaluation of mixed symptoms and the general neurotic syndrome in the follow-up of a randomised controlled trial

2021 ◽  
pp. 1-10
Author(s):  
Peter Tyrer ◽  
Helen Tyrer ◽  
Tony Johnson ◽  
Min Yang
Keyword(s):  
Randomised Controlled Trial ◽  
Panic Disorder ◽  
Controlled Trial ◽  
Anxiety And Depression ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Personality Dysfunction ◽  
Randomised Controlled ◽  
Anxiety Depression

Abstract Background Cohort studies of the long-term outcome of anxiety, depression and personality status rarely join together. Methods Two hundred and ten patients recruited with anxiety and depression to a randomised controlled trial between 1983 and 1987 (Nottingham Study of Neurotic Disorder) were followed up over 30 years. At trial entry personality status was assessed, together with the general neurotic syndrome, a combined diagnosis of mixed anxiety–depression (cothymia) linked to neurotic personality traits. Personality assessment used a procedure allowing conversion of data to the ICD-11 severity classification of personality disorder. After the original trial, seven further assessments were made. Observer and self-ratings of psychopathology and global outcome were also made. The primary outcome at 30 years was the proportion of those with no Diagnostic and Statistical Manual of Mental Disorders (DSM) diagnosis. Data were analysed using multilevel repeated measures models that adjusted for age and gender. Missing data were assumed to be missing at random, and the models allowed all subjects to be included in the analysis with missing data automatically handled in the model estimation. Results At 30 years, 69% of those with a baseline diagnosis of panic disorder had no DSM diagnosis compared to 37–47% of those with generalised anxiety disorder, dysthymia or mixed symptoms (cothymia) (p = 0.027). Apart from those with no personality dysfunction at entry all patients had worse outcomes after 30 years with regard to total psychopathology, anxiety and depression, social function and global outcome. Conclusions The long-term outcome of disorders formerly called ‘neurotic’ is poor with the exception of panic disorder. Personality dysfunction accentuates poor recovery.

scholarly journals Long-term outcome of two forms of randomised benzodiazepine discontinuation

2006 ◽  
Vol 188 (2) ◽  
pp. 188-189 ◽  
Author(s):  
R. C. Oude Voshaar ◽  
W. J. M. J. Gorgels ◽  
A. J. J. Mol ◽  
A. J. L. M. Van Balkom ◽  
J. Mulder ◽  
...  
Keyword(s):  
Randomised Controlled Trial ◽  
Usual Care ◽  
Controlled Trial ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Randomised Controlled

SummaryAbouttwo-thirds of long-term users of benzodiazepines in the population are able to discontinue this drug with the aid of supervised programmes for tapering off. Little is known about the long-term outcome of such programmes, and they have never been compared with usual care. After a 15-month follow-up of a randomised controlled trial comparing such a programme with and without psychotherapy with usual care, we found significantly higher longitudinal abstinence rates in long-term benzodiazepine users who received a benzodiazepine tapering-off programme without psychotherapy (25 out of 69, 36%) compared with those who received usual care (5 out of 33, 15%; P=0.03).

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