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Management and outcomes of fractures over cranial venous sinuses: a scoping review protocol

Por: Takoutsing · B. · Wunde Njineck · U. · Wah · P. S. · Sebopelo · L. · Ngouanfo Tchoffo · J. · Bah · E. S. · Esene · I. N.
Introduction

Fractures over venous sinuses (FOVSs) are associated with difficulties in diagnosis and treatment resulting in a high level of morbidity and mortality. Despite its importance, there are limited aggregate data to guide the management of these fractures ultimately inflicting a major callenge to neurosurgeons. This protocol describes the methodology of a scoping review that aims to synthesise contemporary evidence on the management and outcomes of FOVSs.

Methods and analysis

The proposed study will be conducted in accordance with the Arksey and O’Malley’s framework for scoping reviews. The research question, eligibility criteria and search strategy were developed based on the population, intervention, comparator and outcome strategy. The following electronic bibliographic databases will be searched without restrictions on language and date of publication: PubMed, WHO Global Index Medicus, African Journals Online, SCOPUS, Embase, Cochrane and ProQuest Central. All peer-reviewed studies of primary data reporting on the management and outcomes of FOVSs will be included. The data extracted from included articles will be presented through descriptive statistics, pooled statistics and a narrative description.

Ethics and dissemination

Because this study did not directly involve human individuals, ethical approval was not necessary. Dissemination strategies will include publication in a peer-reviewed journal, oral and poster presentations at local, regional, national and international conferences and promotion over social media.

N-acetyl cysteine for the treatment of alcohol use disorder: study protocol for a multi-site, double-blind randomised controlled trial (NAC-AUD study)

Por: Morley · K. · Arunogiri · S. · Connor · J. P. · Clark · P. J. · Chatterton · M. L. · Baillie · A. · Slade · T. · Berk · M. · Lubman · D. · Haber · P. S.
Introduction

Current treatments for alcohol use disorders (AUD) have limited efficacy. A previous 28-day pilot trial of N-acetyl cysteine (NAC) vs placebo found NAC to be feasible and safe, with evidence of improvement on some measures of alcohol consumption. Thus, the primary aim of the NAC-AUD study is to examine the therapeutic and cost-effectiveness of NAC vs placebo in improving treatment outcomes for AUD. We will also examine the (i) effect of NAC vs placebo on mood, markers of liver injury, cognition and hangover symptoms; and (ii) predictors of any response.

Methods and analysis

This double-blind trial will randomise participants with AUD to a 12-week regimen of either NAC (2400 mg/day) or placebo. All participants will receive medical management. The primary drinking outcome will be the number of heavy drinking days (HDDs) per week, validated by phosphatidylethanol (PEth). Secondary alcohol-related outcomes will include standard drinks per drinking day (SDDD) per week and absence of any HDDs. Other secondary outcomes will include markers of liver injury, depression, anxiety, craving, hangover symptoms, cognition and blood oxidative stress markers. We will also examine the cost-efficacy of NAC vs placebo.

Ethics and dissemination

Ethics approval for the study has been granted by The Sydney Local Health District Ethics Review Committee (X21-0342& HREC2021/ETH11614). There are no restrictions on publication from the sponsor or other parties.

Trial registration number

NCT05408247.

Diagnostic performance of the Hightop Rapid Diagnostic Test for the detection of anti-Treponema pallidum antibodies in Cameroon: a laboratory-based cross-sectional and comparative study

Por: Taheu Ngounouh · C. · Nguwoh · P. S. · Fokam · J. · Essomba · R. G. · Halilou · I. · Al-Maye Bit Younouss · A. · Ibnou Moussa · N. · Yuosembom · E. · Pepa · S. · Mbarga Foe · M. · Orock Eta · E. · Mpiwouo Panyere · G. · Madie Tamo · C. · Ngantchui Tchuisseu · J. · Moussa · A. · Zotie
Objective

The study was conducted to assess the diagnostic performance of the Hightop Syphilis Rapid Diagnostic Test (RDT) in comparison with the ELISA test used as a reference method.

Design

A laboratory-based cross-sectional and comparative study was conducted to assess the diagnostic performance of the Hightop Syphilis RDT.

Setting

Blood samples obtained from adult participants in eight health facilities were analysed at the National Public Health Laboratory (NPHL), Ministry of Public Health, Yaounde, Cameroon.

Participants

From 29 April to 25 August 2023, 583 adult participants of both sexes (aged ≥21 years), including both syphilis positive and syphilis negative, were recruited consecutively in eight health facilities in eight regions of Cameroon.

Outcome measures

Blood samples were screened for the detection of anti-Treponema pallidum antibodies using the One Step Rapid Test (Qingdao Hightop Biotech), a non-treponemal test and ELISA (Biorex Diagnostics, UK), a treponemal test used as a reference method. Diagnostic performance of the Syphilis RDT was analysed using Epi Info V.7 and validated through online statistical tools such as StatPages, GraphPad, QuickCalcs and MedCalc software.

Results

Of the 583 samples tested, the Hightop Syphilis RDT revealed a sensitivity of 84.6% (95% CI: 74.8% to 91.1%) and specificity of 98.5% (95% CI: 97.5% to 99.1%). The positive predictive value (PPV) and negative predictive value (NPV) were 84.6% (95% CI: 74.8% to 91.1%) and 98.5% (95% CI: 97.5% to 99.1%), respectively. Regarding the stratification of diagnostic performance by clinical stage, the test showed a sensitivity of 100.0% (95% CI: 71.51% to 100.0%) and specificity of 99.06% (95% CI: 94.86% to 99.98%). The PPV and NPV were 91.67% (95% CI: 61.00% to 98.72%) and 100.0% (95% CI: 96.55% to 100.0%), respectively, in symptomatic individuals. Among asymptomatic individuals, sensitivity was 97.56% (95% CI: 87.14% to 99.94%) and specificity was 100.0% (95% CI: 99.14% to 100.0%). The PPV and NPV were 100.0% (95% CI: 91.19% to 100.0%) and 99.77% (95% CI: 98.40% to 99.97%), respectively.

Conclusions

The Hightop Syphilis RDT demonstrated adequate diagnostic performance, particularly among symptomatic individuals, supporting its utility as a reliable tool for syphilis detection in clinical settings.

Propofol-based versus sevoflurane-based anaesthesia for deceased donor kidney transplantation: the VAPOR-2 study protocol for an international multicentre randomised controlled trial

Por: Huisman · G. J. J. · Berger · S. P. · Thyrrestrup · P. S. · Hausken · J. · Veelo · D. P. · Guirado · L. · Pol · R. · Jensen · L. L. · Tonnessen · T. I. · Bemelman · F. J. · Facundo · C. · THE VAPOR-2 STUDY GROUP · Tamasi · K. · Lunter · G. · Jespersen · B. · Leuvenink · H. G. D. · Str
Introduction

Ischaemia reperfusion injury (IRI) is inevitable in kidney transplantation and negatively affects patient and graft outcomes. Anaesthetic conditioning (AC) refers to the use of anaesthetic agents to mitigate IRI. AC is particularly associated with volatile anaesthetic (VA) agents and to a lesser extent to intravenous agents like propofol. VA like sevoflurane interferes with many of the processes underlying IRI and exerts renal protective properties in various models of injury and inflammation. We hypothesise that a sevoflurane-based anaesthesia is able to induce AC and thereby reduce post-transplant renal injury, reflected in improved graft and patient outcome, compared with a propofol-based anaesthesia in transplant recipients of a deceased donor kidney.

Methods and analysis

Investigator-initiated, multicentre, randomised, controlled and prospective clinical trial with two parallel groups. The study will include 488 kidney transplant recipients from donation after brain death (DBD) or donation after circulatory death (DCD) donors. Participants are randomised in a 1:1 design to a sevoflurane (intervention) or propofol (control) group. The primary endpoint is the incidence of delayed graft function in recipients of DCD and DBD donor kidneys and/or 1-year biopsy-proven and treated acute rejection. Secondary endpoints include functional delayed graft function defined as failure of serum creatinine levels to decrease by at least 10% per day for three consecutive days; primary non-function is defined as a permanent lack of function of the allograft; length of hospital stay and postoperative complications of all kinds, estimated glomerular filtration rate at 1 week and 3 and 12 months calculated with the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula; readmissions at 3 and 12 months, graft survival and all-cause mortality at 12 months.

Ethics and dissemination

The study is approved by the local ethical committees and national data security agencies. Results are expected to be published in 2025.

Trial registration number

NCT02727296.

Cardioprotective and mentally protective effects of the Mediterranean-dietary approaches to stop hypertension intervention for neurodegenerative delay diet combined with forest bathing among adults with elevated blood cholesterol: a parallel group randomi

Por: Law · P. S. Q. · Yau · K.-Y. · Wong · D. C. · Yuen · K.-S. · Yu · C.-P. · Loke · A. Y.
Introduction

The prevalence of cardiovascular diseases (CVDs) is rapidly increasing across Asia, with the burden particularly high among individuals aged ≥50 years. Elevated low-density lipoprotein cholesterol (LDL-C) level is a well-established causal risk factor for CVDs. Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay (MIND) diet is a cardioprotective diet, which is rich in plant-based foods. Combining it with stress-reducing practices, including forest bathing (FB), which involves immersive exposure to forest environments, has been shown to reduce LDL-C levels and other cardiovascular risk factors by modulating pro-inflammatory responses. However, existing evidence is limited due to small sample sizes and poor study design. Therefore, this study aims to investigate whether the MIND diet combined with FB can reduce CVD risks among Chinese adults in Hong Kong. It also compares the effects of the MIND diet combined with FB on cardiovascular and mental health.

Methods and analysis

A single-blind, randomised controlled trial involving three groups will be used to assess the impact of the MIND diet combined with FB on LDL-C levels in adults aged 50–75 years with elevated LDL-C levels. Participants (n=273) from local community centres will be randomly assigned to the MIND-plus-FB (who will receive nutrition education, follow the MIND diet for 12 weeks and participate in regular FB sessions), MIND-alone (who will receive nutrition education and follow the MIND diet for 12 weeks) or routine care (who will continue their usual activities and receive a general health talk along with pamphlets on cardiovascular risks) group. The change in LDL-C levels will be measured at weeks 4 and 12 (primary outcome). Additionally, changes in high-density lipoprotein cholesterol level, triglyceride level, glucose level, systolic blood pressure, waist circumference, body mass index, anxiety levels and emotional state will also be assessed at weeks 4 and 12. Statistical analyses will include intent-to-treat, 2 test, analysis of variance and generalised estimating equations.

Ethics and dissemination

This study has been approved by the Research Ethics Committee of Tung Wah College, Hong Kong (reference number: REC2023164). Research findings will be disseminated through publication in peer-reviewed journals and presentations at academic and primary healthcare conferences.

Trial registration number

ClinicalTrials.gov ID: NCT06222632, registered on 25 January 2024. The ClinicalTrials.gov data are available at: https://clinicaltrials.gov/study/NCT06222632?term=NCT06222632&rank=1&a=2&tab=history

Role of Adjunctive corticoSTEROIDs on clinical outcomes in severe Scrub typhus pneumonitis: ASTEROIDS study protocol - a randomised controlled trial

Por: Peter · J. V. · Venkatesh · B. · Premkumar · P. S. · Chacko · B. · Gunasekaran · K. · Krishna · B. · Chaudhry · D. · Saravu · K. · Wyawahare · M. · Ray · S. · Chandiraseharan · V. K. · Carey · R. · Rathinam · J. · Varghese · G. M.
Introduction

Recent studies have demonstrated a beneficial role of steroids in severe community-acquired pneumonia, severe COVID-19 infection and acute respiratory distress syndrome (ARDS) of diverse aetiology. This multicentre randomised controlled trial in severe scrub typhus pneumonitis and ARDS will compare the effects of 6 mg of dexamethasone once per day with placebo, in addition to standard treatment, on ventilator-free days (VFD), mortality and ventilatory requirement.

Methods and analysis

The study, involving six sites, will recruit 440 patients with severe scrub typhus pneumonitis or ARDS to concealed, block-randomised, site-specific assignment of dexamethasone or placebo for 4–7 days. The primary outcome will be VFD, defined as days alive and free of ventilation at 28 days. Secondary outcomes will include 28-day mortality, need and duration of ventilation, and treatment failure, defined as death, or escalation of respiratory support from simple devices (nasal cannula, mask) to non-invasive or invasive ventilation, or the use of open-labelled steroids for worsening shock. The study will also ascertain if antinuclear antibody (ANA) expression during the acute phase of illness will predict steroid responsiveness. Subgroup analyses will be conducted a priori on ANA expression and the need for ventilation. All analyses will be conducted on an intention-to-treat basis. The trial, which commenced in April 2025, would clarify the role of corticosteroids in scrub typhus pneumonitis.

Ethics and dissemination

The Institutional Review Board and Ethics Committee of the lead site, Christian Medical College, Vellore, India, has approved the study (IRB Min No 15920 (INTERVE) dated 22 November 2023). The remaining five sites have obtained approval from their respective ethics committees. Study results will be published in an international peer-reviewed journal.

Trial registration number

CTRI/2024/12/077709. Registered 5 December 2024.

Evaluating DOAC dipstick testing in the management of acute stroke: protocol for a multicentre, prospective, observational registry study

Por: Callaly · E. P. · Tan · P. S. · Schembri · E. · Borosak · M. · Dewey · H. · Choi · P.
Introduction

Direct oral anticoagulants (DOACs) are preferred over vitamin K antagonists for stroke prophylaxis in non-valvular atrial fibrillation. Yet, DOAC use is regarded as a contraindication for intravenous thrombolysis in acute ischaemic stroke. The stratification of patients into ‘on-therapy’ and ‘off-therapy’ categories based on their plasma DOAC concentrations is particularly crucial in the acute phase of stroke when decisions for thrombolysis or anticoagulation reversal are time-sensitive. The novel point-of-care DOAC dipstick assay (DOASENSE) rapidly assesses urine for clinically significant DOAC levels, potentially broadening eligibility for thrombolysis or targeted reversal therapy. This multicentre prospective observational registry study aims to evaluate the accuracy and clinical utility of DOAC dipstick testing compared with plasma DOAC assays in acute stroke management across regional Australian hospitals.

Methods and analysis

This multicentre, prospective, observational study will enrol participants presenting to hospitals across Victoria and Tasmania with acute ischaemic stroke or intracerebral haemorrhage with DOAC ingestion within 48 hours of presentation. Plasma DOAC concentrations measured by chromogenic assays will be compared with rapid urine dipstick results from DOASENSE testing. There is a target sample size of 146 participants. The primary outcomes are as follows: (1) proportion of ischaemic stroke participants with off-therapy plasma DOAC levels and (2) eligibility for reperfusion therapy based on DOASENSE and plasma DOAC concentrations. Secondary outcomes are follows: (1) ischaemic stroke aetiology for participants with on-therapy vs off-therapy DOAC levels; (2) proportion of participants meeting criteria for pharmacological DOAC reversal based on DOASENSE outcomes; (3) incidence of false-negative and false positive DOASENSE results in clinically significant DOAC plasma concentrations at a threshold of ≥30 ng/mL and (4) an exploratory analysis of any false negative DOASENSE assays to identify potential contributing factors.

Ethics and dissemination

Ethics approval has been granted by the Eastern Health Human Research Ethics Committee (reference number: 99628). Dissemination of findings will occur through peer-reviewed publications and academic conferences.

Outcomes of patient and public involvement in the development of the Cognitive Decline after Brain Radiosurgery (CoDe B-Rad) study: refining the research question and methodology

Por: Bangiri · A. · Horobin · A. · Baker · J. · Pszczolkowski · S. · Thust · S. · Morgan · P. S.
Objectives

Patient and public involvement (PPI) was sought in the development of the protocol for the Cognitive Decline after Brain Radiosurgery (CoDe B-Rad) study, which aims to identify potential side effects of stereotactic radiosurgery (SRS). PPI served to refine the research question and methodology.

Design

PPI.

Setting

PPI conducted online with people based in the UK. The CoDe B-Rad study is running in regional National Health Service tertiary care in the UK and is currently nearing recruitment completion.

Participants

Patients and carers with lived experiences of brain radiotherapy. Contributors were identified through national charities.

Procedures

Initial focus groups were planned, but participation proved challenging. Instead, online questionnaires, one-to-one discussions and participation in support groups were completed.

Results

All contributors experienced changes to their cognition and/or quality of life (QoL) after radiotherapy. Quantifying the side effects of SRS and minimising them were identified as a research gap. Discussion group participation proved challenging. PPI plans were altered to accommodate the physical and mental needs of contributors. It was decided to combine the Montreal Cognitive Assessment along with European Organisation for Research and Treatment in Cancer QLQ-C30 and BN20 to capture cognitive status and QoL of patients with brain metastases and meningiomas after SRS. Patients/carers recommended for sessions to be restricted to 30 min and testing to be offered face-to-face, online, in hospital or at patients’ homes. Coproduction was not achievable with our patient population but that did not diminish the input of contributors nor the impact it had on designing the study protocol.

Conclusions

In cancer research, diligent considerations are required to ensure the suitability of involvement methods for this vulnerable population. Flexibility and adaptability of draft PPI plans are essential to achieve meaningful contributions. The protocol of the ongoing CoDe B-Rad study was positively shaped by people with lived experiences of brain radiotherapy.

Trial registration number

NCT06466720 (CoDe B-Rad study).

Evaluation of the outpatient parenteral antimicrobial therapy (OPAT) service in Malaysian public hospitals: a mixed-methods study protocol

Por: Lim · A. H. · Ab Rahman · N. · Nor · A. N. M. · Misnan · N. A. · Tok · P. S. K.
Introduction

Outpatient parenteral antimicrobial therapy (OPAT) is an innovative approach to manage infections that require extended courses of intravenous antibiotics by enabling patients to receive treatment in an outpatient setting. In Malaysia, there has yet to be a systematic evaluation of the OPAT service. This study aims to describe the safety, clinical indications and treatment outcomes of the OPAT service in Malaysia, assess patients’ satisfaction and experiences and determine the facilitators and barriers associated with the provision of the OPAT service in Malaysia.

Methods and analysis

A mixed-methods approach combining qualitative and quantitative methods will be employed for a comprehensive understanding of the provision of the OPAT service in Malaysian public hospitals. The study consists of four distinct parts: systematic review, retrospective cohort analysis of clinical outcomes, patients’ satisfaction survey and focus group discussions on providers’ experiences. A longitudinal analysis of the clinical outcomes (treatment success/failure, infection cure, adverse events, readmission and mortality) of the OPAT patients’ cohort will be conducted using descriptive and conclusive statistics, in addition to rates of patients’ satisfaction and evaluation of providers’ experiences.

Ethics and dissemination

This study is registered in the National Medical Research Register (NMRR ID-24-00941-2C8) and approved by the Medical Research and Ethics Committee, Ministry of Health Malaysia (Ref: 24-00941-2C8). Written informed consent will be obtained from all participants. The results will be submitted for publication in a peer-reviewed journal and presented at one or more scientific conferences.

Arm Based on LEg blood pressures (ABLE-BP): can systolic ankle blood pressure measurements predict systolic arm blood pressure? An individual participant data meta-analysis from the INTERPRESS-IPD Collaboration

Por: McDonagh · S. T. J. · Warren · F. C. · Sheppard · J. P. · Boddy · K. · Farmer · L. · Shore · H. · Williams · P. · Lewis · P. S. · Fordham · A. J. · Martin · U. · Aboyans · V. · Clark · C. E. · on behalf of the INTERPRESS-IPD Collaborators · White · Price · Ferrucci · Erbel · Westeri
Objectives

To determine associations between arm and ankle systolic blood pressures (SBPs), develop and validate a multivariable model predicting arm SBP from ankle SBP, and investigate associations between ankle SBP, cardiovascular disease and mortality.

Design

Ankle-arm SBP differences were examined in two-stage individual participant data (IPD) meta-analyses using multivariable hierarchical linear regression models. Models were used to derive and validate a prediction model for arm SBP based on ankle SBP. Model performance was assessed using area under the receiver operating characteristic (AUROC) curve analyses. Prognostic associations of ankle SBP with outcomes were examined using Cox proportional hazards models.

Data sources

Searches identified cohorts for the Inter-arm Blood Pressure Difference IPD (INTERPRESS-IPD) Collaboration from Medline, Old Medline, Medline in process, Embase and CINAHL databases from inception until January 2017; unpublished data were also sought. Required primary outcomes were all-cause mortality, cardiovascular mortality, and/or fatal and non-fatal cardiovascular events.

Eligibility criteria

Prospective studies from community, primary care or general clinic settings, without language restriction, that recorded SBP in both arms were eligible. Adults aged ≥18 years with SBP measured in all four limbs, in a supine position, were included in the current analyses. People with peripheral artery disease were excluded.

Data extraction and synthesis

Anonymised datasets were individually cleaned and then combined into a single dataset for the INTERPRESS-IPD Collaboration.

Results

The current dataset included 33 710 participants from 14 studies; mean age 58 years, 45% female, mean baseline arm blood pressure 138/80 (SD: 20/12) mm Hg. Mean ankle SBP was 12.0 mm Hg (95% CI 8.8 to 15.2) higher than arm SBP. The multivariable model predicting arm SBP from ankle SBP demonstrated excellent performance (AUROC curves, sensitivities and specificities were >0.82, 0.80 and 0.82, respectively, at all BP thresholds from 130 to 160 mm Hg). Model performance was superior to existing arithmetic formulae.

Ankle SBP was neither associated with all-cause nor cardiovascular mortality (HR 1.000 (0.997 to 1.002; p=0.682) and 1.001 (0.996 to 1.005; p=0.840), respectively). However, lower-reading ankle SBP was associated with fatal or non-fatal cardiovascular events (HR 1.005 (1.002 to 1.007; p

Conclusions

On average, ankle SBP is 12 mm Hg higher than arm SBP. Estimating individual arm SBP from ankle SBP measurements with a multivariable model is more accurate than existing fixed arithmetic formulae. This model, operationalised in an online calculator (https://ablebp.research.exeter.ac.uk/), could facilitate hypertension management and cardiovascular care for people unable to have arm SBP measured.

PROSPERO registration number

CRD42015031227.

Orofacial functions with emphasis on breathing and chewing patterns in individuals with and without molar incisor hypomineralisation: observational study protocol conducted in a dental clinic in Brazil

Introduction

Molar incisor hypomineralisation (MIH) is a qualitative developmental defect of the enamel with a complex, multifactorial nature and a significant genetic component. Individuals with MIH have a compromised stomatognathic system manifested by muscle hyperactivity under postural and dynamic conditions. However, there is a gap in knowledge on the specific functional abnormalities that these individuals experience. Early identification and intervention, with a focus on the prevention of orofacial dysfunctions and deviations in facial growth and development, are aspects of the utmost importance. Therefore, the aim of the proposed study is to perform a comparative analysis of orofacial functions with an emphasis on breathing and chewing patterns in individuals with and without MIH. The secondary objective is to assess whether dentin hypersensitivity and the severity of MIH lesions are associated with alterations in orofacial functions.

Methods and analysis

Assessments will be performed using the Nordic Orofacial Test-Screening (NOT-S). Descriptive analyses will characterise the sample. The Shapiro-Wilk test will assess normality. For normally distributed data, analysis of variance and Tukey’s post hoc test will be used. For non-normal data, the Mann-Whitney U test will be applied. The 2 test will analyse categorical variables and compare NOT-S domains between groups. Potential confounders (eg, age, sex, socioeconomic status) will be controlled through stratification or as covariates. Logistic and Poisson regressions will model associations for categorical and count-based outcomes, respectively. Statistical significance will be set at p

Ethics and dissemination

This protocol has been approved by the Human Research Ethics Committee of Nove de Julho University (certificate number: 83969924.2.0000.5511; approval date: 22 November 2024). Participants will agree to take part in the study by signing an informed consent form. The findings will be published in a peer-reviewed journal. The collected data will be available on request.

Trial registration number

NCT06692257.

Rationale and design of 'discontinuing statins in multimorbid older adults without cardiovascular disease (STREAM): study protocol of a randomised non-inferiority clinical trial

Por: Aebi · P. S. · Adam · L. · Haller · M. · Bardoczi · J. B. · Gencer · B. · Bonnet · F. · Beer · J.-H. · Carballo · S. · Christ-Crain · M. · Feller · M. · Gabutti · L. · Haynes · A. G. · Moutzouri · E. · Chocano-Bedoya · P. O. · Bassetti · S. · Escher · R. · Egger · M. · Poortvliet · R. K.
Introduction

Statins are among the most widely used drugs. While they are effective for primary and secondary prevention of cardiovascular (CV) disease in middle-aged subjects, their benefits for prevention in older adults (aged ≥70 years) without CV disease are uncertain, particularly for those with multimorbidity. Statin side effects and drug interactions are common in older patients and may negatively impact quality of life. To date, the only randomised controlled trial (RCT) investigating statin discontinuation in older adults has demonstrated no difference in survival but did note a small improvement in quality of life for those who discontinued statins. However, this trial exclusively enrolled patients with a life expectancy

Methods and analysis

This study is a multicentre, randomised, non-inferiority trial conducted in both inpatient and outpatient settings in Switzerland, France and the Netherlands, targeting patients using statins for primary prevention. 1800 participants are randomly assigned 1:1 to either discontinue (intervention arm) or continue (control arm) statin therapy. The primary objective is to compare the primary composite endpoint of major CV events (non-fatal myocardial infarction or non-fatal ischaemic stroke) and all-cause death between the control and intervention groups over a follow-up duration of up to 48 months. We hypothesise that discontinuing statins does not result in shorter event-free survival, with a non-inferiority margin set at 5.2 weeks over a 2-year observation period. Secondary objectives are to compare patient-centred outcomes (health-related quality of life, muscle pain symptoms, falls and sarcopenia) and all-cause death, non-CV death, major CV events and coronary and peripheral artery revascularisation. The study is open-labelled, with blinded outcome adjudication of the primary endpoints.

Ethics and dissemination

The trial protocol has received approval from the local ethics committees in Switzerland, France and the Netherlands. Results will be published in a peer-reviewed journal.

Trial registration number

Clinicaltrials.gov: NCT05178420; BASEC (Swiss Ethics Commission): 2021-01513; FOPH (Swiss national portal): SNCTP000005172; Netherlands Trial Register: NL83907.058.23; France Trial Register: 22.04747.000158– IDRCB 2022-A02481-42.

Study protocol for a randomised controlled trial evaluating the efficacy of dietary modulation of probiotics on nutritional status and antibody response to SARS-CoV-2 in Indonesian adolescents: gut-lung axis (DIVINE)

Por: Agustina · R. · Ekawidyani · K. R. · Mutiyani · M. · Prafiantini · E. · Nindya · T. S. · Damayanti · W. · Rejeki · P. S. · Djuari · L. · Huriyati · E. · Bines · J. E. · Juffrie · M.
Introduction

During the pandemic, overweight and obese adolescents were at a higher risk of COVID-19 infection. Indonesia’s government has implemented prevention programmes and immunisation; however, the rise in SARS-CoV-2 infections among adolescents is exacerbated by low-quality diet and lifestyle habits. Also, the vaccine programme is not prioritised in this population. To address this, a solution involves providing probiotics and counselling on healthy lifestyle habits to improve diet and immunity. Therefore, we designed a protocol for a randomised controlled trial with a 20-week intervention to investigate the effect of probiotics supplementation and counselling on healthy lifestyle habits, including healthy eating and physical activity, and psychosocial stimulation, on nutritional status and antibody response against SARS-CoV-2 in this group.

Methods and analysis

This clinical trial aims to investigate the effects of probiotic supplementation on healthy overweight and obese adolescents. The study will involve 440 adolescents aged 12–17 living in Jakarta, Surabaya or Yogyakarta for at least 6 months and have completed at least two doses of the COVID-19 vaccine. The intervention group will receive daily probiotic supplementation of three strains, including Bifidobacterium animalis subsp. Lactis (BB-12), Lactobacillus acidophilus (LA-5) and Lactobacillus rhamnosus (LGG), at the level of 109–1010 colony-forming units for 20 weeks, while the control group will receive a placebo. Both groups will receive weekly counselling on healthy eating habits, physical activity and psychosocial stimulation. The primary outcomes will be changes in the body mass index for age z-score and IgG specific to SARS-CoV-2 titre concentrations between groups. The secondary outcomes will include changes in secretory IgA specific to SARS-CoV-2 titre concentrations, monoclonal antibodies against SARS-CoV-2 spike protein, gut microbiota diversity and the score of Healthy Eating Index 2015.

Ethics and dissemination

The study protocol was approved by the Ethics Committee of the Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital (KET 763/UN2.F1/ETIK/PPM.00.02/2022: 1 August 2022). The study results will be disseminated in open-access international journals, scientific meetings and conferences with stakeholders.

Trial registration number

The study has been registered at https://clinicaltrials.gov with identifier number NCT05623007.

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