Publications by authors named "Gabriel Revon Riviere"

Article Synopsis
  • The COVID-19 pandemic severely affected early-career pediatric oncology professionals, impacting their work practices, productivity, and career development.
  • A survey conducted in 2021 with 499 participants from 48 countries revealed that many experienced job insecurity, decreased academic productivity, and reduced career opportunities, especially among women and individuals with childcare responsibilities.
  • The findings emphasize the need for governing bodies to address and support the unique challenges faced by these professionals during the pandemic.
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  • Spinal cord compression (SCC) is a critical issue in kids with advanced cancers, prompting a study on its presentation and treatment options, especially focusing on radiation therapy.
  • A retrospective review of 28 patients revealed 34 cases of SCC, with neuroblastoma being the most common cancer; both preemptive and reactive treatments showed similar outcomes in survival and quality of life.
  • The study suggests that proactive radiation therapy may not offer significantly better results than reactive approaches, indicating that treatment decisions should be personalized and more research is needed for better strategies in pediatric cancer care.
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  • - The Ewing Sarcoma Family of Tumors (ESFT) includes rare cancers, with a significant portion showing metastatic spread, especially affecting bone and bone marrow, which worsens prognosis and necessitates stronger treatments.
  • - The French phase II COMBINAIR3 study compared the effectiveness of PET/CT to traditional bone marrow aspiration and biopsy (BMAB) for staging extra-pulmonary metastatic ESFT in 42 patients.
  • - Results indicated that PET/CT had high specificity (100%) and notable sensitivity (83.3%) in detecting bone marrow involvement, suggesting it can replace BMAB for initial staging, thereby enhancing treatment planning for high-risk ESFT patients.
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Metronomic chemotherapy-based combinations have received interest for relapsed/refractory malignancies. Preclinical and clinical studies showed activity of metronomic etoposide and axitinib. We report our retrospective experience in six children treated with axitinib and metronomic etoposide for refractory/relapsed brain tumors as an "off-label" combination.

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Background: The need for new therapies to improve survival and outcomes in pediatric oncology along with the lack of approval and accessible clinical trials has led to "out-of-trial" use of innovative therapies. We conducted a retrospective analysis of requests for innovative anticancer therapy in Canadian pediatric oncology tertiary centers for patients less than 30 years old between 2013 and 2020.

Methods: Innovative therapies were defined as cancer-directed drugs used (a) off-label, (b) unlicensed drugs being used outside the context of a clinical trial, or (c) approved drugs with limited evidence in pediatrics.

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To evaluate physicians' opinions concerning continuous deep sedation until death (CDSUD) and implementation of Claeys-Leonetti; a law intended to be applicable to all patients, but without a specific framework for children thus giving rise to ethically and legally complex situations. The secondary objective was to identify if physicians' characteristics could influence their opinions. This was a national, multicenter, noninterventional cross-sectional survey from January 30, 2020, until March 1, 2020.

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  • Innovative therapeutic approaches are necessary to support children and young adults with rare and chronic conditions, emphasizing better access to clinical research and off-label treatments.
  • Health Canada introduced the Single Patient Study (SPS) to give access to non-marketed drugs for patients with serious conditions when traditional clinical trials are unavailable.
  • The report discusses the SPS's impact on the Canadian healthcare landscape, addressing both the opportunities it presents and the challenges faced by stakeholders like regulators, pharmaceutical companies, and patient advocates.
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Solid tumors or predisposition syndromes are increasingly suspected before birth. However optimal management and outcomes remain unclear. We have performed a ten-year retrospective study of oncologic indications of prenatal diagnosis in public hospitals in Marseille.

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(1) Background: Children and young adults with cancer are poorly represented in COVID-19 vaccination studies, and long-term protection conferred by vaccination is not known. (2) Objectives: 1. To determine the adverse effects associated with BNT162B2 vaccination in children and young adults with cancer.

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Precision oncology requires tumor molecular profiling to identify actionable targets. Tumor biopsies are considered as the gold standard, but their indications are limited by the burden of procedures in children. Blood-derived liquid biopsy (LB) is a potential alternative that is not yet documented in real-world settings, especially in pediatric oncology.

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Purpose: To update the 2015 clinical practice guideline for the prevention of oral mucositis in pediatric cancer or hematopoietic stem cell transplant (HSCT) patients.

Methods: We performed seven systematic reviews of mucositis prevention. Three reviews included randomized controlled trials (RCTs) conducted in pediatric and adult patients evaluating cryotherapy, keratinocyte growth factor (KGF) or photobiomodulation therapy with a focus on efficacy.

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Background And Aims: COVID-19 infection in paediatric patients with cancer is severe or critical in 20% of the patients. It can therefore directly affect paediatric patients with cancer and/or their care. We aimed at evaluating the safety and efficacy of the BNT162b2 mRNA COVID-19 vaccine in adolescents and young adults (AYA) with solid tumour.

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There is a growing interest in physical activity (PA) in paediatric oncology. Overall studies in children with cancer have reported good adherence, positive trends in health status, and no adverse events. Thus, a general PA program should be offered to paediatric oncology inpatients.

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Objective: Childhood and adolescent cancer can result in high burden of distressing symptoms, particularly in high-risk malignancies. The Symptom Screening in Pediatrics Tool (SSPedi) is a reliable and valid approach to measure bothersome symptoms in paediatric patients receiving cancer treatments. Objective was to describe the feasibility of using SSPedi administration among paediatric patients with high-risk malignancies.

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Background: to evaluate the safety and efficacy of a physical activity program (PAP) in children and adolescents with cancer.

Methods: children and adolescents with cancer were randomly assigned in a 1:1 ratio to the six-month PAP (intervention group) or to the control group. The first evaluation was performed at the end of the PAP (T0 + 6 mo).

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Background: Pediatric low-grade glioma (pLGG) represents the most common brain tumor in childhood. Previous studies have reported that a therapeutic strategy on the basis of the association of bevacizumab alone (B) or in combination with irinotecan (BI) could produce rapid tumor response and clinical improvement in children with pLGG. Nevertheless, a majority of patients relapses shortly (median, 5 mo) after stopping B or BI treatment.

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Objectives: Symptom Screening in Pediatrics Tool (SSPedi) is a validated approach to measuring bothersome symptoms for English-speaking and Spanish-speaking children with cancer and paediatric haematopoietic stem cell transplantation (HSCT) recipients. Objectives were to translate SSPedi into French, and among French-speaking children receiving cancer treatments, to evaluate understandability and cultural relevance.

Methods: We conducted a multiphase, descriptive study to translate SSPedi into French.

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Purpose: Low- and middle-income countries (LMICs) experience the burden of 80% of new childhood cancer cases worldwide, with cure rates as low as 10% in some countries. Metronomics combines frequent administrations of low-dose chemotherapy with drug repurposing, which consists of using already-approved drugs for new medical applications. With wide availability, limited costs, and little infrastructure needs, metronomics can be part of constraint-adapted regimens in these resource-limited settings-with the understanding that metronomics shall not be a substitute for standard treatments when available and doable.

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Background: Efforts to improve the quality of end-of-life (EOL) care depend on better knowledge of the care that children, adolescents, and young adults with cancer receive, including high-intensity EOL (HI-EOL) care. The objective was to assess the rates of HI-EOL care in this population and to determine patient- and hospital-related predictors of HI-EOL from the French national hospital database.

Methods: This was a population-based, retrospective study of a cohort of patients aged 0 to 25 years at the time of death who died at hospital as a result of cancer in France between 2014 and 2016.

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