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Going the distance: a cross-sectional geospatial analysis quantifying province-wide inequities in travel-based access, and fragility of access to French-language primary care provided by family physicians in Ontario, Canada

Por: Belanger · C. · Timony · P. E. · Belizaire · A. · Desilets · A. · Fitzsimon · J. P. · Gauthier · A. P. · Godfrey · L. · Karunananthan · S. · Kehoe MacLeod · K. · Muray · M.-N. · Peixoto · C. · Bjerre · L. M.
Objectives

Language-concordant care, or healthcare in one’s preferred language, is important both for health equity and for improving health outcomes. Linguistic minorities, like Francophones in Ontario, Canada, are at risk of poorer clinical outcomes if they receive non-language-concordant primary care. However, common ratio-based access measures can provide misleading views of minorities’ actual access levels. This cross-sectional geospatial study demonstrates a new way to measure primary care access using average travel time to the nearest five English- and French-speaking family physicians. We also introduce the concept of primary care access fragility, where a region’s primary care access may depend on one or a few local family physicians. Our research question is: are there differences in travel burden and access fragility for census subdivisions (CSDs) across language (English/French), rurality (urban/rural) and region (north/south) in the province of Ontario, Canada?

Design

We conducted a cross-sectional geospatial analysis to estimate English-language and French-language primary care travel burdens and access fragility in Ontario, Canada. We used population and boundary data from Statistics Canada’s 2021 census, road-network data from OpenStreetMaps, and family physician practice locations and language abilities from the College of Physicians and Surgeons of Ontario. We measured travel burden using Valhalla, an open-source road-network analysis platform.

Setting

We conducted our analysis for Ontario, Canada’s 577 CSDs, which correspond roughly to municipalities and with populations ranging from 5 inhabitants in Rainy Lake 17B to a high of 2 794 356 in Toronto.

Participants

Using public data from January 2026, we identified 15 762 family physicians practising in Ontario, of whom 11.0% reported speaking French. Patient data were obtained from the most recent 2021 census.

Primary and secondary outcome measures

Our first primary outcome measures were CSD-level mean travel time to the nearest five English-speaking family physicians, and CSD-level mean travel time to the nearest five French-speaking family physicians, which we compared to explore regional inequities in travel burden. Our secondary outcome measures were based on a novel notion of the travel burden component of ‘primary care access fragility’. This metric indicates how dependent a region’s access is on a small number of local physicians and is defined as the difference between the CSD-level mean travel time to the nearest one physician and to the nearest five physicians. As the difference in travel times grows, so too does access fragility.

Results

Median differences in French-language and English-language travel burdens were strongly significant across rurality, regions and overall (median difference 13.4 min, p

Conclusions

Compared with the general public, Ontario’s French-speakers face higher travel burdens to language-concordant family physicians and higher access fragility, especially in rural and northern regions. Our results are of interest to policymakers and health-system planners, and our methods are applicable to other populations and regions.

Efficacy, moderators and mediators of cognitive behavioural analysis system of psychotherapy (CBASP) versus behavioural activation (BA) in persistently depressed treatment-resistant inpatients: study protocol for the multicentre, randomised controlled cha

Por: Brakemeier · E.-L. · Klein · J. P. · Zimmermann · J. · Hollandt · M. · Reinhard · M. A. · Boger · S. · Daldrup · L. · Eldem · L. · Gebhardt · P. · Heinrich · S. · Hirsmueller · M. · Millerowski · J. · Richter · M. · Ridderbusch · I. C. · Suerig · S. · Schroeter · L. · Velten-Schurian
Introduction

Up to 30% of individuals with depression develop persistent depressive disorder (PDD), an often disabling and difficult to treat condition. The Cognitive Behavioural Analysis System of Psychotherapy (CBASP) is the only psychotherapy developed specifically for treating individuals with PDD. While several randomised controlled trials (RCTs) have demonstrated its efficacy in outpatient settings, evidence for its use in inpatient settings remains limited. Pilot studies of CBASP inpatient programmes in Germany have shown promising feasibility and effectiveness; however, no RCTs to date have systematically evaluated their outcomes. This study represents the first RCT to compare the short- and long-term efficacy and safety of CBASP with Behavioural Activation (BA), a first-line psychotherapy for depression, within an intensive multimodal inpatient setting.

Methods and analysis

In this prospective, multicentre, rater-blinded RCT with an active control group, we aim to recruit 396 adults (aged 18–70 years) with treatment-resistant PDD at eight German university hospitals. Participants will be randomly assigned to receive either (1) CBASP or (2) BA within an intensive treatment programme consisting of 10 weeks acute treatment in an inpatient and/or day clinic setting, followed by 6 weeks of outpatient continuation treatment. Primary and secondary outcome assessments will be conducted at multiple time points: baseline (T0), treatment onset (T1), after 5 and 10 weeks of acute treatment (T2, T3), at the end of continuation treatment (T4, week 16) and every 2 months up to week 64 (T5, naturalistic follow-up).

The primary outcome measure will be the change in depression severity, as assessed by the Hamilton Depression Rating Scale (24-item version), after 16 weeks of treatment (from T0 to T4). Secondary outcomes will include response, remission, deterioration and relapse rates, self-reported depression and anxiety symptoms and additional psychological variables. A cost-benefit analysis will evaluate the health-economic benefits of both interventions. Additionally, this RCT will explore personalised treatment selection and mechanisms of change, including potential moderators and mediators of treatment effects. The findings from this trial are expected to provide clinicians with evidence-based guidance on choosing CBASP versus BA for inpatients with treatment-resistant PDD.

Ethics and dissemination

This study has received ethical approval from the ethics committees of all participating university hospitals. All participants will provide written informed consent before enrolment. Study findings will be published in peer-reviewed journals and presented at national and international conferences. We have involved people with lived experience from the earliest pilots onward, using their feedback to refine our study design. Ongoing consultation at conferences and public events has further ensured that our research remains grounded in patient perspectives.

Trial registration number

NCT04996433.

Association between continuity of care and detection of hypertension in Dutch general practice: a 10-year cohort study

Por: van der Velde · N. R. · te Winkel · M. T. · Kanning · J. P. · Lissenberg-Witte · B. I. · Harskamp · R. · Maarsingh · O. R.
Objectives

Hypertension is a major modifiable risk factor for cardiovascular disease, and timely detection enables interventions that can substantially reduce this risk. General practice, with continuity of care (COC) as one of its core values, plays a pivotal role in hypertension detection. This study aimed to investigate the association between COC and the detection of hypertension in general practice.

Design

Longitudinal dynamic cohort study.

Setting

This study used routine care data from 48 Dutch general practices between 2013 and 2022.

Participants

106 755 adults without known cardiovascular diseases or risk factors at baseline.

Outcome measures

The Herfindahl-Hirschman Index, an established measure for COC, was used to calculate both general practitioner (GP)- and team-COC. A multivariable Cox proportional hazard regression model was used to assess the association between COC level (low, intermediate, high) and the incidence of hypertension detection.

Results

We included 106 755 patients (59.5% female, median age 35 years) in our analysis. The overall incidence rate was 9.42 hypertension diagnoses per 1000 person-years (95% CI 9.20 to 9.64). Compared with low COC, patients receiving intermediate or high GP-COC had a 1.9 (95% CI 1.7 to 2.1) to 4.9 (95% CI 4.4 to 5.4) higher HR of hypertension detection; patients receiving intermediate or high team-COC had a 2.3 (95% CI 2.2 to 2.5) to 7.3 (95% CI 6.8 to 7.8) higher HR of hypertension detection. High personal continuity was associated with up to 8.3 months (95% CI 8.6 to 7.9) earlier detection of hypertension. The association between COC and hypertension detection was dose-dependent.

Conclusions

This study shows that both GP-COC and team-COC are dose-dependently associated with increased HRs and earlier detection of hypertension in adults without preregistered cardiovascular conditions. Promoting COC contributes to cardiovascular preventive care.

Stimulating amyloid-{beta} clearance in cerebral amyloid angiopathy with low-sodium oxybate and/or non-invasive vagus nerve stimulation (Clear-Brain): study protocol for a randomised pre-post trial

Por: Schriemer · S. E. · Hirschler · L. · van Etten · E. S. · van Zwet · E. W. · Lammers · G. J. · Liebler · E. J. · van Walderveen · M. A. A. · Slats · A. M. · van Es · A. C. G. M. · Verbeek · M. M. · van Osch · M. J. P. · Wermer · M. J. H. · Fronczek · R.
Introduction

Cerebral amyloid angiopathy (CAA) is caused by the accumulation of amyloid-beta (Aβ) in the cerebrovasculature. The glymphatic system is thought to be involved in the clearance of cerebral waste products, including Aβ. Stimulation of the glymphatic system through enhancing deep sleep with low-sodium oxybate (LXB) or inhibition of cortical spreading depolarisations via non-invasive vagus nerve stimulation (nVNS) could potentially increase clearance of Aβ and hence improve disease course.

Methods and analysis

We will perform a pre-post trial to assess whether treatment with LXB, nVNS or a combination of both interventions can enhance the clearance of Aβ in patients with CAA. A total of 60 participants, 30 with sporadic CAA and 30 with Dutch-type CAA, will be randomly assigned to receive either LXB, nVNS or both interventions, resulting in three groups (20 in each group: LXB, nVNS and both). The study spans 6 months, comprising a 3-month observational phase and a 3-month intervention phase. The primary outcome measure will be the morning levels of Aβ40 and Aβ42 in cerebrospinal fluid (CSF) before and after the intervention. We will assess possible disease progression with (non-)haemorrhagic imaging markers on 7-Tesla MRI at baseline, before and after intervention, as a secondary outcome. Additionally, the activity of the glymphatic system by means of fluid dynamics will be assessed with CSF-Selective T2-weighted Readout with Acceleration and Mobility encoding (CSF-STREAM) on 7-Tesla MRI.

Ethics and dissemination

The study was reviewed and approved by the Medical Research Ethics Committee Leiden The Hague Delft (P23.100) on 8 April 2024. The first participant was enrolled on 27 March 2025. Study results will be published in peer-reviewed journals and presented at scientific conferences. Additionally, study updates and results will be shared with participants via our newsletter twice a year.

Trial registration

EU CT number 2023–5 06 128-10-00, Universal Trial Number U1111-1295-1113, ClinicalTrials.gov NCT06421532.

Hybrid drug-coated balloon strategy for coronary bifurcation lesions: a systematic review and meta-analysis

Por: Dillen · D. M. M. · van Beek · K. A. J. · Vermeer · A. J. E. · Vlaar · P.-J. · El Farissi · M. · Demandt · J. P. A. · Eerdekens · R. · van het Veer · M. · Tonino · P. A. L. · Teeuwen · K.
Objectives

Recently, drug-coated balloons (DCB) have emerged as a promising alternative for side branch treatment in coronary bifurcation lesions, in combination with drug-eluting stent (DES) implantation in the main vessel, the hybrid DCB approach. We aimed to evaluate clinical outcomes in patients treated with the hybrid DCB approach and to compare this strategy with other bifurcation techniques.

Design

A systematic review and meta-analysis.

Data sources

MEDLINE and EMBASE were searched up until January 2025.

Eligibility criteria

We included randomised controlled trials and observational studies investigating clinical outcomes in patients treated with the hybrid DCB approach for coronary bifurcation lesions.

Data extraction and synthesis

Two independent reviewers extracted data and assessed the risk of bias. The outcome of interest was the combined endpoint of cardiac death, myocardial infarction (MI) or target lesion revascularisation (TLR) at the longest available follow-up. Crude event rates, stratified by treatment strategy, were provided for the overall incidence of the primary endpoint. Furthermore, we conducted meta-analyses on the combined endpoint, comparing different bifurcation percutaneous coronary intervention (PCI) strategies. The certainty of evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation tool.

Results

13 studies, consisting of 2393 patients, were included in our systematic review. Investigated techniques were the hybrid DCB approach in all studies, and a two-stent strategy or the combination of DES in main vessel and balloon angioplasty (BA) in the side branch as potential comparators. Median follow-up duration was 12 months (IQR 7.5–12). The combined endpoint of cardiac death, MI or TLR was found in 5.6% in the hybrid DCB group, 15.4% in the two-stent group and in 10.0% in the BA group. The pooled analyses, including three and two studies, respectively, showed that the hybrid DCB approach was associated with a lower risk of the composite endpoint of cardiac death, MI or TLR when compared with a two-stent strategy (7.9% vs 15.4%; risk ratio (RR): 0.53; 95% CI 0.33 to 0.85) and compared with BA in the side branch (5.6% vs 10.0%; RR: 0.57; 95% CI 0.37 to 0.88). The certainty of the evidence was graded as very low.

Conclusion

The results of this systematic review and meta-analysis suggest that the hybrid DCB approach is a feasible and promising treatment approach for bifurcation lesions, when compared with other bifurcation PCI strategies. However, the results should be interpreted cautiously as the certainty of evidence was graded as very low, underlining the importance of larger trials to confirm these findings.

Trial registration number

CRD420250651469.

Effect of the English National Enhanced Service on weight management referral rate: an interrupted time-series analysis

Por: Haffner · S. J. P. · Stevens · R. J. · Amies-Cull · B. · Heath · L. · Bankhead · C. · Aveyard · P. · Jebb · S. A.
Objectives

To assess the impact of a National Enhanced Service (NES) incentive for weight management that financially rewarded practices for each eligible patient referred to a weight management programme.

Design

Interrupted time-series analysis to examine the rate of weight management referral and weight management advice.

Setting

Primary healthcare records from January 2018 to December 2024 in the Oxford Clinical Informatics Digital Hub, covering 8.3 million patients in 1198 primary care clinics around England.

Interventions

NES payments to practices for weight management were introduced in April 2021.

Results

The rate of referral increased from 1 referral per 1000 patients per month before the incentive to around 4 referrals per 1000 patients per month afterwards. There was no evidence that the increase differed by age, gender, ethnic group or socioeconomic status. The occurrence of weight management advice was unchanged by the introduction of the NES and was at least three times more common than referral to weight management services.

Conclusions

The NES was associated with a fourfold increase in referrals to weight management services. However, clinicians are much more likely to offer advice rather than a referral to a weight management programme. There is a clear opportunity to improve outcomes for patients by encouraging greater use of referrals to effective weight management services in place of advice.

Mechanisms of SGLT inhibitor action and physiological mediators: systematic review and protocol for the MOSAIC collaborative meta-analysis

Por: Kugathasan · L. · Nardone · M. · Muskiet · M. · Diaz Martinez · J. P. · Lovblom · L. E. · Orchanian-Cheff · A. · Nielsen · S. · Rotbain · V. · Kazup · A. · Cersosimo · E. · Gullaksen · S. · Vernstrom · L. · van Baar · M. J. B. · van Bommel · E. · Kannenkeril · D. · Scholtes · R. · Hesp
Introduction

Sodium-glucose cotransporter (SGLT) inhibitors have shown substantial benefit in reducing cardiovascular and kidney events across diverse clinical populations, but the underlying physiological mechanisms remain unclear. However, existing mechanistic studies on renal and cardiovascular haemodynamics show variability in design, have limited statistical power and yield inconsistent outcomes, thus limiting the ability to draw generalisable conclusions. To address this gap, we conducted a systematic review and proposed the first meta-analysis to aggregate individual participant-level data from mechanistic studies to identify consistent physiological patterns and enhance understanding of the therapeutic effects of SGLT inhibition.

Methods and analysis

Gold-standard measured glomerular filtration rate (mGFR) was selected as the primary outcome for this systematic review, which aimed to identify all completed mechanistic studies investigating the effects of SGLT inhibition. Electronic databases including Ovid MEDLINE; Ovid Embase; Cochrane Database of Systematic Reviews; and Cochrane Central Register of Controlled Trials were searched using a detailed search strategy. In total, 24 studies (n=1296) were identified. This systematic review was reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Key variables including demographics, medical history, concomitant medications, vital signs, mGFR, renal haemodynamics, urine and plasma biochemistry, tubular sodium handling, echocardiography, cardiac output monitoring, arterial stiffness and fluid volume will be extracted. A one-stage individual participant data meta-analysis under a Bayesian framework will be conducted, using hierarchical models to simultaneously analyse data from all eligible studies. The risk of bias due to missing results will be assessed. Sensitivity analyses and subgroup evaluations will be incorporated to explore sources of heterogeneity and assess robustness of findings.

Ethics and dissemination

Ethics approval was obtained from University Health Network, Toronto, Canada. Findings from the Mechanisms of SGLT Inhibitor Action and Physiological Mediators (MOSAIC) meta-analysis will be published in peer-reviewed journals and results will be disseminated at scientific conferences.

PROSPERO registration number

CRD420251001413.

Advancing Strategies to Optimise the PerIopeRativE Management of PostOperative Nausea and Vomiting (ASPIRE-PONV) study: rationale and design for a sequential, repeated crossover trial

Por: Stallings · E. G. · Wanderer · J. P. · Balavage · M. · Henson · C. P. · Fowler · L. · Eden · S. · Shotwell · M. S. · Gruss · C. · Neuhafen · K. R. · Gelfand · B. J. · Kertai · M. D. · for the ASPIRE-PONV Investigators
Introduction

This project, in adult surgical patients, will evaluate whether the creation of a customised checklist, driven by a clinical decision support tool, is able to improve anaesthesia providers’ adherence to consensus guidelines and standardised practice recommendations for the prevention of postoperative nausea and vomiting (PONV).

Methods and analysis

The intervention will be evaluated using a sequential, repeated crossover design at the institutional level, with designated washout, control and intervention periods. The surgical case will serve as the unit of analysis. The primary outcome is adherence to appropriate PONV prophylaxis administration guidelines. Secondary outcomes include the incidence of PONV and length of stay in the postanaesthesia care unit (PACU).

Ethics and dissemination

This protocol and statistical analysis plan provide an outline of the study design, primary and secondary end points and analytic approach. The Advancing Strategies to Optimise the PerIopeRativE Management of PostOperative Nausea and Vomiting trial has received approval from the Vanderbilt University Institutional Review Board (IRB: 250773). The results will be disseminated through peer-reviewed publications and presentations at national conferences. Findings from this trial will inform best practices for timely antiemetic prophylaxis, with the goal of reducing PONV incidence and shortening PACU stay.

Trial registration number

NCT07152249.

Protocol for the development of a global core outcome set for the surgical treatment of sacrococcygeal teratoma in children: a systematic review and international Delphi study

Por: Dongen · M. C. · van Rijn · R. · Sharma · S. · Raphael · M. F. · de Vries · R. · Abouzeid · A. A. · Bugiani · M. · Chirdan · L. B. · van Heurn · E. L. W. · Derikx · J. P. M. · Kremer · M. E. B. · Steering Group · S.-C.
Introduction

Outcome reporting in studies on sacrococcygeal teratoma (SCT) is highly heterogeneous, which limits comparability across studies and thus hampers the development of international treatment guidelines.

Variation in treatment and access to facilities contributes to differences in outcome reporting between centres and countries. Establishing a Core Outcome Set (COS) can improve consistency in outcome reporting and facilitate global collaboration and data comparison. We therefore aim to develop a Core Outcome Set for SCT (COS-SCT) using the Delphi method to achieve consensus on key outcomes. This will enhance the standardisation of outcome reporting and improve the quality of research and clinical care for SCT patients globally.

Methods and analysis

The development of the COS-SCT will consist of three phases. First, a systematic review will be performed to identify outcomes reported in studies on the surgical treatment of SCT in children. Second, an international Delphi survey will be conducted among key stakeholders, including clinicians, researchers and patient representatives, to establish consensus on outcome prioritisation. Finally, a consensus meeting with representatives from all stakeholder groups will be held to ratify the final Core Outcome Set. The study will follow methodological guidance from the Core Outcome Measures in Effectiveness Trials (COMET) initiative and will be developed and reported in accordance with the Core Outcome Set Standards for Development (COS-STAD) and Core Outcome Set Standards for Reporting (COS-STAR).

Ethics and dissemination

The medical research ethics committee of the Amsterdam University Medical Centre (Amsterdam UMC) confirmed that the Dutch Medical Research Involving Human Subjects Act (WMO) does not apply to this study, and therefore a full review by the ethics committee is not required. This study is registered in the COMET initiative database. Results will be disseminated in peer-reviewed academic journals and conference presentations.

Trial registration number: COMET registration number 3485

Three decades of clinical trials in Portuguese-speaking Africa: a comprehensive scoping review protocol

Por: Batista · J. P. B. · Teixeira · M. M. · Torre · C. d. M. · Sepodes · B. · Abecasis · A. · Mota-Filipe · H.
Introduction

Published clinical trials offer valuable insights into the clinical research landscape in Portuguese-speaking African countries (PSAC)—Angola, Cabo Verde, Guinea-Bissau, São Tomé and Príncipe and Mozambique. The objective of this comprehensive scoping review is to systematically map and analyse randomised clinical trials (RCTs) evaluating pharmacological interventions conducted in PSAC from 1995 to 2024, in order to identify research trends, targeted diseases, geographic distribution and evidence gaps to better understand the development and evolution of clinical trials in the region. This is the first comprehensive scoping review to examine the clinical trials landscape in PSAC.

Methods and analysis

This scoping review adheres to the Joanna Briggs Institute methodology for scoping reviews, which builds on the Arksey and O’Malley methodological framework (refined by Levac et al) and will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews guidelines. A dual-search strategy will be used, consulting 4 electronic databases (MEDLINE, EMBASE, African Index Medicus, Cochrane Central Register of Clinical Trials) and 3 clinical trials registries platforms (Clinicaltrials.gov, International Clinical Trials Registry Platform, Pan African Clinical Trials Registry). Eligible studies will include RCTs conducted in at least one of the PSAC. Extracted data will include trial characteristics, targeted diseases, phases and designs, funding and ethical compliance. Risk of bias (RoB) will be assessed using the Cochrane RoB tool V.2.0 to evaluate the quality of the evidence included in the scoping review. Conclusions will be drawn upon the comparison between countries and their scope of clinical research, together with comparison with countries from other geographies, considering disease profiles.

Ethics and dissemination

Ethical approval is not required. Results will be disseminated through a peer-reviewed publication, conference presentation and in plain language in social media, both in Portuguese and in English.

PROSPERO registration number

This protocol is registered in the Open Science Framework https://osf.io/5nhc9.

Patients lived experiences and coping mechanisms following mitral valve replacement at the National Cardiac Institute in Tanzania: a qualitative study

Por: Kisangija · J. P. · Buluba · S. E. · Ndile · M. L.
Objective

To qualitatively explore patients’ lived experiences and coping mechanisms following mitral valve replacement (MVR) at the National Cardiac Institute in Tanzania.

Design

A descriptive qualitative study using in-depth interviews and thematic analysis.

Setting

The study was conducted at the National Cardiac Institute, located in Dar es Salaam, the sole tertiary cardiac centre in Tanzania offering open-heart surgery.

Participants

17 participants were purposively sampled. Inclusion criteria were as follows: patients aged ≥18 years, had at least 28 days post-MVR, without chronic conditions (eg, diabetes and HIV) and attending postoperative cardiac clinics.

Main outcome measures

Semi-structured interviews conducted in May 2024 using an interviewer guide explored post-MVR challenges, daily life adjustments, patient-provider interactions and coping strategies. Thematic analysis was employed to identify key themes.

Results

Three primary themes emerged: (1) Quality of life after MVR, encompassing physical, social, economic and psychological challenges; (2) Quality of care after MVR, highlighting patient-provider interactions and access to services; and (3) Adapting to post-MVR life, including psychological adaptation and lifestyle modification. Participants reported improved quality of life through shared experiences and support.

Conclusion

Patients experienced physical, socio-economic and psychological challenges post-MVR. However, quality of life improved through access to care, peer support and adaptive coping. Adaptation to life with an artificial valve is feasible with robust support systems, even in resource-limited settings.

Determinants of treatment decisions in advanced dementia: a protocol for a cross-cultural mixed-methods study

Por: Lima · J. P. · Mbuagbaw · L. · Prasad · M. · Kumar · A. · Wafeu · G. S. · Bonnet · R. · Agoritsas · T. · Li · S. · Liu · Z. · Alonso-Coello · P. · Akio Nishijuka · F. · Mirza · R. · Matos Silva · C. · Alshanketi · R. · Alsahafi · I. · Alnuaimi · A. · Heen · A. F. · Schwartz · L. · Guyatt
Introduction

Values and preferences are key determinants of optimal care, and variability in patient values and preferences often dictates differences in patient management. Clinicians’ views of patients’ values and preferences may differ across cultural aspects and stage of training, but the extent to which this is the case remains uncertain. One key value and preference issue is the trade-off between quantity and quality of life, and this issue is particularly prominent among patients with dementia. We therefore propose to investigate the extent to which physicians’ perceptions of optimal management for patients living with advanced dementia may differ due to cross-cultural factors and stage of medical training.

Methods and analysis

We will conduct a sequential explanatory mixed-methods study (QUAN -> qual). First, we will administer paper-based or electronic surveys during educational sessions, conferences and rounds to medical students, residents and physicians in ten countries, either in person or online. Following that, a qualitative inquiry, guided by the findings of the quantitative study and the principles of the interpretive description design, will inform an in-depth exploration of the predictive factors identified in the quantitative data analysis.

Ethics and dissemination

The Hamilton Integrated Research Ethics Board at McMaster University has approved this study (approval number 2024-17651). We will disseminate our findings in peer-reviewed publications and present results at conferences as oral and poster presentations.

Rationale and design of the AlloFIST trial: a phase I/IIa study to evaluate dose escalation of allogeneic adipose-derived stroma/stem cells for the treatment of Crohns fistula

Por: Buscail · E. · Gilletta de Saint Joseph · C. · Lebrin · M. · Frument · I. · Gross · F. · Bournet · B. · Buscail · L. · Culetto · A. · Mokrane · F. · Delchier · M. C. · Quelven · I. · Daguzan · C. · Pugnet · G. · Duffas · J. P. · Ghouti · L. · Philis · A. · Carrere · N. · Lepage · B. · Le C
Introduction

Crohn’s disease (CD) is a chronic inflammatory disorder of the gastrointestinal tract distinguished by progressive bowel damage with a risk of structuring and penetrating complications. It is characterised by focal or segmental transmural inflammation that disrupts intestinal mucosal integrity and favours the development of abscesses and fistulas. Perianal fistula develops in 13%–39% of patients with CD. Their care is difficult but improves with medical and surgical treatment to preserve anal continence and avoid a maximum proctectomy. Combined treatment with seton placement and concomitant anti-TNF (infliximab, adalimumab) allows wound healing in 40%–70% of cases. The currently available treatments are not curative and fail to provide a long-term resolution. The injection of adipose stromal cells is currently being evaluated in clinical studies for repair-damaged tissues in various diseases (limb ischaemia, osteoarthritis, systemic sclerosis, etc). Immunoregulatory and anti-inflammatory properties of AdMSC (adipose-derived stroma/stem cells) are responsible for accelerating healing and represent an innovative approach for treating perianal fistulas associated with CD.

Methods and analysis

This phase I/IIa study is designed to assess the treatment of complex perianal fistulas linked with CD after failure of conventional treatment by injection of AdMSC (CellReady) into the fistula. Two doses of associated AdMSC will be tested for a dose escalation (5x107 and 10x107 cells) and injected into the wall of the fistula. Those eligible for inclusion include patients with controlled luminal CD characterised by a Harvey-Bradshaw score below or equal to eight and diagnosed on clinical, endoscopic, histological and/or radiological criteria, a colonoscopy dating back less than 1 year without ulcer in the rectum and presence of complex chronic perianal fistula with a maximum of two internal ports and three external ports. All patients must have social security insurance or equivalent social protection. The aim of this study is to determine the optimal dose corresponding to maximum efficacy 6 months after injection of cells with a treatment-related adverse event rate of 20%.

Ethics and dissemination

The EU CT number 2024-511821-75-00 was approved by the following Ethics Committee: CPP (committee for the protection of persons in French: comité de protection des personnes) Ouest 1 – Tours #2024UEMED-18 and ANSM (French Agency for the Safety of Health and Medicinal Products in French : Agence nationale de sécurité du médicament et des produits de santé) #2024-511821-75-00 (Sponsor number RC31/13/7030, protocol V2.1). The results will be disseminated through conventional scientific channels.

Trial registration number

NCT06636032.

The results will be disseminated through conventional scientific channels.

Ethics and dilemmas regarding acceptance of COVID-19 vaccine among people living in an Indian metropolitan city during the pandemic: a qualitative study

Por: Raj · J. P. · Balasubramanian · S. · Nellikal · S. · Sawant · D. A. · Sadawarte · D.
Objectives

To explore public perceptions of COVID-19 vaccine acceptance and hesitancy in India, and to identify underlying factors influencing attitudes toward vaccination during the second wave of the pandemic.

Design

A cross-sectional qualitative study based on a grounded theory approach.

Setting

Community-based interviews conducted in Mumbai, a densely populated metropolitan city in India, during the second COVID-19 wave (April–June 2021).

Participants

Twenty purposively selected adults (men and women aged 22–87 years) from varied educational and occupational backgrounds. Inclusion criteria were willingness to participate and the ability to provide informed consent; individuals directly involved in COVID-19 vaccine policy or administration were excluded.

Methods

In-depth semi-structured interviews were conducted using an interview guide exploring perceptions of COVID-19 vaccination. Interviews were audio-recorded, transcribed verbatim and analysed inductively following grounded theory principles. Reflexivity was maintained throughout data collection and analysis.

Primary and secondary outcome measures

Key emergent themes relating to vaccine acceptance, hesitancy and influencing factors such as safety concerns, efficacy perceptions, media influence and social determinants of vaccine choice.

Results

Attitudes toward vaccination ranged from strong acceptance to hesitancy driven by concerns about safety, side effects and the speed of vaccine development. Media coverage, peer and healthcare professional opinions, and personal experiences shaped the decision of the participants. Cost considerations and lack of vaccine choice influenced uptake. Many participants favoured vaccination being voluntary rather than mandatory for the general population.

Conclusion

Trust in authorities, transparent risk communication and culturally sensitive engagement are critical to improving vaccine confidence. Public health strategies should address safety concerns, ensure equitable access and promote consistent messaging to enhance vaccine acceptance in current and future pandemic contexts.

Organ donation for research purposes: a qualitative focus group study on the views of donor families, transplant recipients and heart failure patients in the UK

Por: Louca · J. O. · Asemota · N. · Thren · J. · Manara · A. · Bhagra · S. · Wang · L. · Bargehr · J. · Burton · N. · Burton · S. · Rockell · K. · Nunes · J. P. · White · P. · Berman · M. · Pettit · S. · Rubino · A. · Reyahi · A. · Large · S. · Sinha · S. · Wilson · C.
Background

Declined donor organs and explanted recipient organs may hold considerable value for biomedical research, particularly in advancing knowledge of disease mechanisms and supporting drug development. However, public perceptions of such use, and preferences for how consent should be obtained, remain underexplored.

Methods

Four workshops were held across the UK to examine the views of organ donor families and transplant recipients regarding the use of human organs in research, with a focus on myocardial regeneration. Each workshop included three brief presentations on transplantation and cardiac regeneration, followed by facilitated small-group discussions. Observational notes were taken to capture participants’ perspectives on the use of organs unsuitable for transplantation. A follow-up survey generated both quantitative and qualitative data, the latter analysed using thematic analysis.

Results

Participants expressed strong support for the use of declined donor and explanted recipient organs in research. Transplant recipients frequently cited a desire to give back to the National Health Service (NHS), while donor families viewed research use as a meaningful way to honour their loved ones when transplantation was not possible.

Conclusion

This exploratory study highlights widespread support for using non-transplantable organs in research among individuals with personal experience of transplantation. The findings suggest a need for further research into how best to support and inform potential donors and families. Participants emphasised the importance of sensitive communication, clear consent processes and transparency regarding the use of donated organs.

Associations between sociodemographic characteristics and knowledge about antibiotics and antibiotic resistance and usage of antibiotics from a One Health perspective in rural Bangladesh: a descriptive cross-sectional study

Por: Hicks · J. P. · Huque · R. · Fieroze · F. · Saify · M. B. · Ensor · T. · Islam · K. · Latham · S. · Mitchell · J. · Rahman · A. · Islam · M. N. · King · R.
Objectives

We explored how key sociodemographic characteristics were associated with correct knowledge about antibiotics and antibiotic resistance (ABR) and appropriate usage of antibiotics from a One Health perspective among rural community members in Bangladesh.

Design

Cross-sectional single-period survey.

Setting

Rural villages in Cumilla district, Bangladesh.

Participants

Eligibility criteria: aged ≥18. Across 50 clusters of villages, we approached 2160 community members and 2187 (98.8%) agreed to participate.

Primary and secondary outcome measures

Primary outcomes: we collected two knowledge outcomes measuring the number of correctly answered binary/multiple-choice questions about (1) antibiotics and ABR and appropriate usage of antibiotics in relation to human illness and (2) antibiotics and ABR and appropriate usage of antibiotics in relation to animal health and the environment. Secondary outcomes: self-reported awareness of (1) antibiotics and (2) ABR.

Results

Several sociodemographic characteristics were associated with variation in both knowledge outcomes. Education showed the strongest associations, with higher education levels associated with higher knowledge scores. For example, compared with having no formal/incomplete primary education, having higher education was associated with 10 percentage points (95% CI 8 to 12) and 6 percentage points (95% CI 3 to 8) higher mean knowledge scores for the knowledge outcomes 1 and 2, respectively. Having worked in the last month compared with not having worked was also weakly positively associated with both knowledge outcomes, and being female compared with being male was also weakly negatively associated with both knowledge outcomes.

Conclusions

Better public education is required to tackle ABR in Bangladesh but correct knowledge about antibiotics and ABR and appropriate usage of antibiotics in relation to humans, animals and the environment varies in relation to individuals’ education level, sex and working status. To maximise their effectiveness, interventions to tackle ABR must be flexible given recipients’ sociodemographic characteristics and pre-existing knowledge levels.

Effect of diet on cognition, mental health and wellbeing among adolescents: protocol for a systematic review

Por: Coombes · J. P. · Murphy · M. · Russell · A. · Turner · A. · Pallan · M.
Introduction

A healthy diet is a crucial component for adolescents’ health and wellbeing. Current literature surrounding dietary intake and its effect on cognition, mental health and wellbeing has mainly focused on children, not adolescents. This review aims to synthesise findings from studies that explore the relationship between dietary intake and cognition, mental health and wellbeing in the adolescent population.

Methods and analysis

Electronic searches will date from 1 January 2000 to 7 October 2024 and will be conducted in CENTRAL, MEDLINE/PubMed, CINAHL via EBSCOHOST, ERIC, British Education Index, Child and Adolescent Studies, Education research complete, Psychology and Behavioural Sciences Collection, Social Policy and Practice Embase, and APAPsychINFO via OvidSP. Articles will be screened using defined inclusion and exclusion criteria and assessed for eligibility by five independent reviewers. Discrepancies will be reviewed by a third reviewer. The selection process of included articles will be reported by using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses flow diagram. A narrative summary will be used to report and synopsise the extracted data.

Ethics and dissemination

This systematic review does not require ethical approval. The dissemination strategy for this review comprises peer-reviewed publications, public health conference presentations and providing a valuable reference for healthy-food interventions in school and community-based settings as well as identifying gaps in the current literature and informing policy and practice.

PROSPERO registration number

CRD42025633083.

Transtympanic sodium thiosulphate to prevent cisplatin-related hearing loss: a protocol for randomised controlled multicentre phase III trial, the SOUND trial

Por: Burger · A. V. M. · Duinkerken · C. W. · Jansen · J. C. · Keereweer · S. · Cals · F. L. · Stokroos · R. J. · de Boer · J. P. · Exterkate · L. · van der Velden · L.-A. · Hoetink · A. E. · Nuijen · B. · Hauptmann · M. · van Sluis · K. E. · Bruintjes · T. D. · Zuur · C. L.
Introduction

Cisplatin is a widely used chemotherapeutic anti-cancer drug. However, high-dose cisplatin is also known for its dose-limiting toxicities, including irreversible cisplatin-induced hearing loss (CIHL). Sodium thiosulphate (STS) can bind to cisplatin to form an inactive and harmless complex. A topical application is desired, allowing cisplatin to retain its systemic anti-cancer effect.

Methods and analysis

The SOUND trial is an investigator-initiated randomised controlled multicentre phase III trial to study the efficacy of transtympanic administration of STS against CIHL in a cohort of 100 patients with head and neck cancer treated with cisplatin at a dose of ≥200 mg/m2. Each subject will receive transtympanic STS injections in one ear, chosen by randomisation, before each cisplatin infusion. The contralateral ear serves as an internal control. The primary objective is efficacy (ie, clinically relevant benefit) of transtympanic STS injections against CIHL, defined as a difference in threshold shift of ≥10 decibels between baseline and 3 months after treatment in favour of the STS-treated ear. Secondary objectives include the difference in mean threshold shifts on frequencies essential for speech and extended high frequencies, as well as the difference between both ears in the gradation of hearing loss as defined by ototoxicity grading scales.

Ethics and dissemination

The medical ethics committee in the Netherlands approved the trial (Clinical Trials Information System (CTIS) 2023-503313-30-00). The results will be disseminated through the CTIS and peer-reviewed scientific journals.

Trial registration number

CTIS 2023-503313-30-00 approved by Medical Research Ethics Committee NedMec.

Prognostic impact of heart failure, chronic kidney disease and atherosclerotic disease alone or combined in an elderly population: a retrospective cohort study based on electronic health record data

Por: Ferreira · J. P. · Taveira-Gomes · T. · Lopes · R. · Seabra-Carvalho · D. · Bernardo · F. · Gavina · C.
Objectives

Heart failure (HF), chronic kidney disease (CKD) and atherosclerotic cardiovascular disease (ASCVD) are highly prevalent conditions that often coexist. Using electronic health records (EHRs), we evaluated the 1-year risk of all-cause death, major cardiovascular and kidney events in patients with HF, CKD, ASCVD and with combinations of these conditions, compared with an unselected control population aged ≥75 years.

Design

Retrospective cohort study based on EHR data.

Setting

Integrated primary and secondary health unit located in the North of Portugal. Eligible adult patients were identified using EHRs from 2008 to June 2022.

Participants

Eight cohorts were defined: (1) control: patients with ≥75 years; (2) ASCVD alone; (3) HF alone; (4) CKD alone; (5) cardiorenal syndrome (CRS): combined HF+CKD; (6) atherosclerotic HF: combined ASCVD+HF without CKD; (7) atherosclerotic CKD: combined ASCVD+CKD without HF and (8) combined ASCVD+CRS. The risk of these conditions was compared with controls using propensity score age-sex matching. We identified 19 129 patients with ASCVD alone, 13 640 patients with HF alone, 40 545 with CKD alone and 10 499 with CRS. The control group comprised 36 532 patients aged 75 years or older.

Primary and secondary outcome measures

The primary outcome was all-cause mortality. The main secondary outcomes were cardiovascular death, HF hospitalisations and end-stage renal disease.

Results

The 1-year mortality rate was 0.65% in the control cohort, 5.6% for patients with ASCVD alone, 6.05% for patients with HF alone and 3.53% for patients with CKD alone. Adjusted risk of all-cause death was significantly increased in the ASCVD-alone (HR: 8.42, 95% CI 7.12 to 9.95), HF-alone (HR: 9.19, 95% CI 7.75 to 10.9) and CKD-alone (HR: 5.35, 95% CI 4.62 to 6.19) cohorts, compared with control population; however, patients with the combination of all three conditions (ie, ASCVD+CRS) had the highest mortality risk (HR: 14.18, 95% CI 11.62 to 17.3). A similar association pattern was observed for cardiovascular death, HF events and end-stage renal disease.

Conclusions

Our results support the concept of an atherosclerotic cardiorenal phenotype, with a very high risk of mortality, cardiovascular and renal adverse events. Implementation strategies are required to target these conditions simultaneously.

LSTA1-GBM-2A: study protocol for an exploratory phase 2a randomised controlled trial evaluating tumour-homing peptide certepetide with temozolomide in glioblastoma multiforme

Por: Truusalu · J. P. · Oselin · K. · Lass · J. · Buck · K. K. · Sietsema · W. · Soeorg · H. · Toome · K. · Kaarna · K. · Teesalu · T. · Korgvee · L.-T.
Introduction

Glioblastoma multiforme (GBM) is an aggressive primary brain tumour associated with a poor prognosis despite standard-of-care treatment, including surgical resection, radiotherapy and temozolomide (TMZ) chemotherapy. Certepetide (also known as LSTA1, CEND-1) is an investigational tumour-penetrating peptide that facilitates the extravascular delivery and intratumoural penetration of co-administered immune/chemotherapeutics; however, it has not yet been evaluated in clinical trials for the treatment of intracranial malignancies.

Methods and analysis

LSTA1-GBM-2A is an exploratory phase 2a, double-blind, placebo-controlled, randomised, proof-of-concept investigator-initiated trial assessing the safety, tolerability and preliminary efficacy of certepetide in combination with standard-of-care TMZ, compared with TMZ with a matching placebo, in subjects with newly diagnosed GBM.

The trial is funded by Lisata Therapeutics, sponsored by Tartu University Hospital and conducted at hospitals in Estonia and Latvia. Subjects are randomised in a 2:1 ratio. Following initial surgery and radiotherapy with concurrent TMZ, the subjects receive intravenous certepetide or placebo alongside six cycles of adjuvant TMZ treatment. The primary endpoint is overall survival. The target number of subjects is 30. The first subject was recruited in January 2024, and accrual is ongoing.

Ethics and dissemination

This study was approved by the Republic of Estonia State Agency of Medicines (17 October 2023) and the State Agency of Medicines of the Republic of Latvia (1 February 2024). The results of this study will be published in peer-reviewed journals and reported at academic conferences.

Trial registration number

2023-506813-23-00.

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