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Phase Ib/II trial to evaluate the safety and efficacy of atezolizumab and bevacizumab as adjuvant therapy following carbon-ion radiotherapy in hepatocellular carcinoma (VANGUARD): study protocol

Por: Koroki · K. · Wakatsuki · M. · Ogasawara · S. · Makishima · H. · Watabe · T. · Anzai · H. · Fujiya · M. · Sawada · M. · Tsuchiya · T. · Katayama · K. · Yoshino · R. · Izai · R. · Akatsuka · T. · Miwa · C. · Yonemoto · T. · Yumita · S. · Inoue · M. · Nakamura · M. · Kanogawa · N. · Nakamoto
Introduction

The establishment of an effective strategy for recurrence prevention following curative treatment for hepatocellular carcinoma (HCC), including radiotherapy, remains a critical unmet clinical need. Despite favourable local control and safety profiles, recurrence after particle therapy remains a major challenge, highlighting the need for effective adjuvant strategies to improve long-term outcomes. The present phase Ib/II trial is designed to evaluate the safety and efficacy of atezolizumab plus bevacizumab (Atezo+Bev) administered after carbon-ion radiotherapy (C-ion RT) in patients with unresectable non-metastatic large HCC. This study aims to explore the potential of this multimodal approach as a novel adjuvant strategy to improve outcomes in patients at high risk of recurrence.

Methods and analysis

This is a phase Ib/II, single-arm clinical trial designed to evaluate the safety and efficacy of adjuvant Atezo+Bev following C-ion RT in patients with HCC. Eligible patients will be enrolled in the first registration phase. C-ion RT (60 Gy) will be administered over four consecutive treatment days ideally within one calendar week. Patients will receive a combination of atezolizumab (1200 mg) and bevacizumab (15 mg/kg) administered intravenously every 21 days for one treatment cycle. The primary endpoint of the phase Ib part is the proportion of patients with dose-limiting toxicity (DLT). DLT is defined as prespecified toxicities associated with the investigational drug among the adverse events that occurred from the start date of the investigational drug (Day 1) to Day 21. If there is one or fewer cases of DLT out of six cases, the trial will proceed to the phase II part. The primary endpoint of the phase II part is the 1-year recurrence-free survival rate.

Ethics and dissemination

This study was approved by the ethics committee of two participating institutions (Chiba University Hospital (approval No. 2024021) and National Institute for Quantum and Radiological Science and Technology, QST Hospital (approval No. C24-001)). Trial results will be reported in a peer-reviewed journal publication.

Trial registration number

jRCT2031240284.

Methods of cervical ripening in induction of labour: an individual participant data network meta-analysis of randomised controlled trials (CIRCLE-NMA) study protocol

Por: Au · N. · Patabendige · M. · Libesman · S. · Wang · R. · Gurrin · L. C. · Mol · B. W. · Li · W. · the CIRCLE-NMA Collaborative · Haas · Galadanci · Zhang · Allotey · de Carvalho Pacagnella · Mundle · Grobman · Seidler · Karahalios · Hunter · Wang · Libesman · Chan · Jones · Tan · Li
Introduction

Induction of labour (IOL) is a commonly performed obstetric intervention, particularly when delivery is deemed more beneficial than continuing the pregnancy due to maternal or fetal indications. When the cervix is unfavourable for delivery, cervical ripening is performed prior to IOL. A wide variety of mechanical, pharmacological and combination methods are used, but the optimal approach balancing efficacy, safety and patient experience remains uncertain. Conventional aggregate data (AD) meta-analyses lack individual-level data, limiting exploration of patient-level factors for personalised medicine and do not address concerns about the trustworthiness of data presented in peer-reviewed randomised controlled trials (RCTs). This protocol describes an individual participant data (IPD) network meta-analysis (NMA) designed to evaluate and rank cervical ripening methods for IOL using only high quality, trustworthy data.

Methods and analysis

We will identify eligible parallel-group RCTs enrolling pregnant women with a singleton, cephalic fetus at ≥34 weeks’ gestation requiring cervical ripening, through comprehensive searches of Ovid MEDLINE, Embase, Emcare, Scopus, Cochrane Pregnancy and Childbirth Register, WHO International Clinical Trials Registry Platform, clinicaltrials.gov and reference lists of prior reviews. The interventions we consider will be selected via Delphi consensus with international clinical experts. Eligible trial investigators will be invited to contribute de-identified IPD; AD will be used if IPD is unavailable. Trials will be assessed for trustworthiness using the Trustworthiness in RAndomised Clinical Trials checklist and the IPD Integrity Tool, with only eligible studies included in the primary analysis. All statistical analyses will follow a pre-specified statistical analysis plan (SAP) finalised before any analyses are conducted. A two-stage, contrast-based, frequentist IPD-NMA will compare cervical ripening methods for three co-primary outcomes: vaginal birth, composite adverse perinatal outcomes and composite adverse maternal outcomes. Subgroup analyses will assess effect modifiers (eg, parity, age and previous caesarean), with treatment rankings presented using the surface under the cumulative ranking curve and rank-heat plots. Sensitivity analyses will examine the impact of bias, missing data and population criteria.

Ethics and dissemination

This study has been approved by the Monash University Human Research Ethics Committee (No. 48189). IPD will be de-identified and securely transferred for storage on a Monash University-hosted shared network drive. Findings will be disseminated via peer-reviewed publications, conference abstracts and the Cervical Ripening for Induction of Labour Collaborative Evidence Network Meta-Analysis (CIRCLE-NMA) website (https://circlenma.com). Patient and public involvement will guide the communication and interpretation of results.

PROSPERO registration number

CRD420251077464.

Rationale and design of uLtrasOund applicability in the assessment of patients with fibRosing interstitial lung Disease (LORD): a research protocol of a prospective cohort study

Por: Patabendige · S. · Harders · S. M. W. · Bendstrup · E. · Durheim · M. T. · Laursen · C. B. · Andersen-Ranberg · K. · Brockhattingen · K. K. · Kildegaard · C. · Bendixen · M. · Davidsen · J. R.
Introduction

Fibrosing interstitial lung disease (F-ILD) are a heterogeneous group of diseases with multiple subtypes. Both idiopathic pulmonary fibrosis and other ILDs associated with a risk of developing progressive pulmonary fibrosis (PPF) are subtypes of this category. A multidisciplinary team discussion, including a chest high-resolution CT (HRCT), is usually considered the gold standard for diagnosis of F-ILD. Repeated HRCT is one of several established methods to assess progression and thus development of PPF, but it is associated with substantial costs and radiation exposure. Thoracic ultrasound (TUS) and other ultrasound (US) methods have emerged as radiation-free methods for both diagnosing and monitoring disease severity in F-ILD. Yet, consistent knowledge on the use of different TUS- and US methods in patients with F-ILD is limited.

Methods

The LORD study is a prospective cohort study conducted in participants with F-ILD at a tertiary ILD centre in Denmark. Physiological testing and patient-related outcome measures, together with TUS- and US examinations, will be performed at inclusion, after 6 and 12 months. The correlations between these assessments will be evaluated. HRCT will be conducted between 3 months prior to and 1 month after baseline, and after 1 year. At least 34 participants will be included.

Ethics and dissemination

The protocol was approved by the Danish Data Protection Agency (journal number: 22/45135) and the Science Ethics Committee for the Region of Southern Denmark (journal number: S-20220036). Results will be published in peer-reviewed international journals and will be presented at an international congress.

Trial registration number

NCT06844331.

Beyond one-size-fits-all: leveraging mixed-methods qualitative analysis of local stakeholders to tailor validated prehospital care solutions in the Cameroonian cultural context

Por: OConnor · K. · Hayashi · A. · Tabe · V. · Dissak-Delon · F. N. · Nsen · L. · Joel · M. · Tanue · E. A. · Oke · R. · Delaney · P. G. · Eisner · Z. · Chichom Mefire · A. · Juillard · C. · Christie · A. S.
Introduction

Prehospital care, though critical to injury survival, is largely unavailable in many low and middle-income countries, including Cameroon. Lay first responder (LFR) programmes train persons with high injury exposure in first-aid and emergency transport, but stakeholder buy-in from trainees and healthcare workers (HCWs) is essential. To design a context-appropriate prehospital care system, we evaluated barriers and facilitators of implementing a driver-based LFR programme in Cameroon.

Methods

In April 2023, we performed a mixed-methods evaluation targeting commercial mototaxi drivers and HCW in Limbe, Cameroon. Drivers were recruited for focus groups through union leaders. Trauma HCW at Limbe Regional Hospital completed Likert surveys and a subgroup completed semistructured interviews. Data collection focused on perceptions, barriers and facilitators of LFR programme implementation. Survey data were summarised using median and IQR. Interviews were recorded, transcribed, translated and analysed with open and axial coding using reflexive thematic analysis.

Results

Overall, 92 mototaxi drivers and 34 HCWs participated in the LFR programme assessment. Among the HCW surveyed, 93% felt mototaxi drivers were capable of training as LFR but only 44% felt that drivers would be able to provide care safely. Interviews identified negative HCW perceptions of drivers, including drivers being uneducated and financially motivated, as key barriers, whereas driver exposure to injury was identified as a facilitator to LFR programme implementation. Driver groups demonstrated a positive perception of LFR training but identified unpaid time spent transporting injured persons as a significant barrier. Both groups described a need for hospital involvement in trainings and bidirectional standardised communication with HCW.

Conclusions

In Cameroon, driver-based LFR may facilitate increased prehospital care but further exploration of possible systems of collaboration that promote long-term success of the programme is required. Specifically, sustainable implementation will need to include clear bidirectional communication guidelines and provide driver incentive commensurate to effort.

Knowledge, attitudes, and barriers to HIV testing among youth in Kumba, Cameroon: A cross-sectional qualitative community-based focus group study

by Frederick Nchang Cho, Marie Clarie Fien Ndim, Diane Zinkeng Tongwa, Christabel Afor Tatah, Franklin Ngwesse Ngome, Eugine Mbuh Nyanjoh, Andrew N Tassang

Background

Human Immunodeficiency Virus (HIV) remains a major public health concern in sub-Saharan Africa. In Cameroon, young people are disproportionately affected but underrepresented in HIV testing statistics.

Objective

To explore knowledge, attitudes, and behaviours related to HIV testing among youth in Kumba, Cameroon, and to identify barriers to inform community-based interventions.

Methods

A cross-sectional qualitative study was conducted using nine focus group discussions (FGDs) with 75 youth (52 females and 23 males) aged 18 - 35 years across four quarters in the Kumba II municipality. Participants were purposively sampled to reflect diverse educational and occupational backgrounds. Data were thematically analysed using Braun and Clarke’s framework with NVivo Version 14.

Results

Participants demonstrated high awareness of HIV testing services (90.7%) and transmission via sexual contact (96.0%), though knowledge gaps remained regarding non-sexual transmission and testing procedures. While 93.3% had previously undergone HIV testing, 57.3% reported stigma and 46.7% raised confidentiality concerns as ongoing barriers. Female participants feared being labelled as promiscuous, while males cited social norms that discourage help-seeking. Most participants supported school-based or youth-centred community testing, emphasising the need for privacy and youth-friendly environments. Key motivators for testing included the desire to know one’s status (82.7%), symptom appearance (28.0%), and unprotected sex (17.3%).

Conclusions

Despite strong awareness and high testing uptake, stigma and confidentiality concerns persist among youth in Kumba. To enhance HIV testing rates, community-based strategies should prioritise mobile clinics, peer outreach, and confidential youth-centred services. Strengthening education about HIV transmission and demystifying the testing process may further reduce barriers.

Memory for Music (M4M) protocol for an international randomised controlled trial: effects of individual intensive musical training based on singing in non-musicians with Alzheimers disease

Por: Lichtensztejn · M. · Cui · A.-X. · Geretsegger · M. · Lundervold · A. J. · Koelsch · S. · Pfabigan · D. M. · Assmus · J. · Langeland · E. · Ruiz · M. · Tabernig · C. · Skogseth · R. E. · Gold · C.
Introduction

The number of people living with dementia is increasing worldwide. Alzheimer’s disease (AD) is the most common type of dementia. It typically manifests itself initially with cognitive impairment in the memory domain and gradually progresses towards affecting all activities of daily living. Active music interventions, particularly singing, may improve mood, social behaviour and quality of life. However, little is known about their effects on cognition, although some studies have provided promising results. The Memory for Music (M4M) project aims to fill this gap in research by measuring the effects of learning new songs on cognitive functioning. Specifically, M4M will examine memory for new songs in non-musician adults with AD after undergoing intensive versus minimal individual musical training based on singing novel songs.

Methods and analysis

Home-dwelling adults with AD, 65 years or older, will receive 5 months of intensive intervention (2x/week) and 5 months of minimal intervention (1x/month). In a crossover design, participants will be randomised to receive either the intensive or minimal intervention first, with 2 months between the intervention periods. Participants will receive individual music lessons to learn new songs, provided by a music instructor with adequate training. The main outcomes will be measured at the beginning and end of each intervention period. General cognition will be measured with the AD Assessment Scale – Cognitive by an assessor blinded to the randomisation. Participants’ memory for music will be measured using the N400 component of electroencephalographic (EEG) event-related potentials in response to music stimuli. Additional outcomes evaluated during intervention sessions include mood and musical performance observations. With 113 participants randomised, the trial will have 80% power to detect clinically meaningful effects. Relations between mood, memory for music and cognitive abilities will be examined, with sex, age, AD stage, previous musical training and education as covariates. M4M will be conducted in close collaboration between academic researchers, service providers and service users to ensure relevance and applicability.

Ethics and dissemination

Dissemination of findings will apply to local, national and international levels. The study has been approved by the Regional Committees for Medical and Health Research Ethics in Norway (reference number 759936) and by Mautalén Salud e Investigación, CECOM in Argentina (register code 14412).

Trial registration number

Clinicaltrials.gov, NCT06611878.

Early sexual debut among unmarried adolescent girls and young women in Tanzania: analysis of the 2022 Demographic Health Survey on the role of coercion at first sex

Por: Antabe · R. · Sano · Y. · Anfaara · F. W. · Kyeremeh · E. · Kalolo · A.
Objective

In Tanzania, the problem of early sexual initiation among adolescent girls and adolescent girls and young women has remained a persistent public health and human rights challenge that continues to draw the attention of policymakers. Evidence suggests that in some parts of the country, as much as 70% of women had their sexual debut as minors, underscoring the urgency to understand all drivers of early sexual debut among this population. While scholars have pointed to addressing a range of factors that work to expose adolescent girls and young women to early sexual initiation, the role of coercion at first sex has been less explored.

Design and setting

We used cross-sectional data from the 2022 Tanzania Demographic and Health Survey.

Participants

A total sample of 1242 sexually active unmarried adolescent girls and young women aged 15–24.

Measures

Our study relied on logistic regression models to examine the role of coerced sex on early sexual initiation among sexually active unmarried adolescent girls and young women aged 15–24 years in Tanzania.

Results

We found that 31% and 14% of sexually active unmarried adolescent girls and young women experienced early sexual initiation and coerced first sex, respectively. At the bivariate level, we discovered that those who indicated that they willingly wanted to have their first sex were less likely to initiate sex early (OR=0.44, 95% CI 0.27 to 0.72). At the multivariate level, the significance of these relationships largely holds, even after sequentially accounting for sociodemographic (OR=0.50, 95% CI 0.30 to 0.82) and HIV-related characteristics (OR=0.50, 95% CI to 0.30 to 0.83).

Conclusions

We recommend re-examination of policy addressing early sexual initiation in Tanzania by incorporating coerced sex as one of the major determinants needing urgent attention. Intensifying awareness creation on the risk of early sexual initiation through coerced sex, especially among adolescent girls and boys, will go a long way to help reduce the incidence of early sexual initiation.

Patient navigation programmes in cancer care in Africa: protocol for a scoping review

Por: Igibah · C. O. · Asogun · D. O. · Okoduwa · B. · Uzoma · V. I. · Agbabi · O. M. · Osinaike · T. · Shittabey · M.-S. K. · Oigiangbe · M. E. · Lawal · Q. O.
Introduction

Cancer remains a major public health concern worldwide. Patient navigation, developed in the 1990s to address disparities in cancer outcomes, aims to guide patients through the complex healthcare system and improve access to timely, quality care. Despite its proven benefits, little is known about the implementation or impact of patient navigation programmes in African settings.

This scoping review aims to map the current evidence on components, procedures, outcomes and impact, as well as barriers and challenges to implementation of patient navigation programmes in cancer care across Africa.

Methods and analysis

This scoping review will follow Arksey and O’Malley’s scoping review framework, as further developed by Levac et al. A systematic search will be conducted across PubMed, African Journals Online and Google Scholar to identify relevant studies published from database inception to the date of the final search, using a combination of relevant keywords and MeSH terms. Eligible studies must be reported in English, have been carried out in Africa, involved patients diagnosed with cancer or navigating the cancer care continuum, and report on the description, implementation or evaluation of patient navigation programmes. Screening will be managed with Rayyan and carried out through a two-stage process: screening by titles and abstracts, then by full-text screening based on the prespecified inclusion and exclusion criteria. Data will be extracted into a structured Excel spreadsheet and synthesised using qualitative content analysis to identify programme characteristics, outcomes, barriers and implementation challenges.

Ethics and dissemination

This scoping review does not require ethical approval. Our findings will be published in a peer-reviewed, open-access journal on completion.

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