Publications by authors named "Latour R"

Climate change is shifting the timing of organismal life-history events. Although consequential food-web mismatches can emerge if predators and prey shift at different rates, research on phenological shifts has traditionally focused on single trophic levels. Here, we analysed >2000 long-term, monthly time series of phytoplankton, zooplankton, and fish abundance or biomass for the San Francisco, Chesapeake, and Massachusetts bays.

View Article and Find Full Text PDF
Article Synopsis
  • Prophylaxis strategies for Graft versus Host Disease (GVHD) in allogeneic hematopoietic cell transplantation (allo-HCT) often include a calcineurin inhibitor (CNI) combined with either methotrexate (MTX) or mycophenolate mofetil (MMF).
  • A study analyzing data from 13,699 patients revealed that MTX-based prophylaxis was linked to lower overall mortality and non-relapse mortality compared to MMF, while showing no significant impact on relapse rates or relapse-free survival.
  • Overall, MTX in combination with CNI was associated with better survival outcomes and a lower risk of severe acute GVHD compared to MMF.
View Article and Find Full Text PDF

In the context of T-cell replete haploidentical stem cell transplantation (Haplo-SCT) using post-transplantation cyclophosphamide (PT-Cy), it is still unknown whether peripheral blood (PB) or bone marrow (BM) is the best graft source. While PB is associated with a higher incidence of graft-versus-host disease (GVHD), it may induce a stronger graft-versus-leukemia effect compared to BM, notably in acute myeloid leukemia (AML). From the EBMT registry database, we compared T-cell replete PB (n = 595) versus BM (n = 209) grafts in a large cohort of 804 patients over the age of 60 years who underwent Haplo-SCT with PT-Cy for an AML in first or second complete remission.

View Article and Find Full Text PDF

Introduction: Pegcetacoplan, the first approved proximal complement C3 inhibitor, showed superiority to eculizumab in improving hemoglobin levels and clinical outcomes in the phase 3 PEGASUS study in patients with paroxysmal nocturnal hemoglobinuria (PNH) and inadequate response to eculizumab.

Methods: This analysis evaluates the efficacy and safety of pegcetacoplan for Japanese patients in PEGASUS, as they are known for different clinicopathologic features compared to non-Asian patients. Ten Japanese patients were enrolled to receive pegcetacoplan (n=5) or eculizumab (n=5) during the 16-week randomized controlled period.

View Article and Find Full Text PDF
Article Synopsis
  • Haploidentical stem cell transplantation (haplo-SCT) helps children with a genetic problem that affects their bone marrow when they can’t find a matching donor.
  • A study looked at 162 patients and found that the best type of T-cell removal, called TCRαβ/CD19 depletion, led to better survival rates and fewer serious side effects.
  • Overall, the study shows that haplo-SCT is a safe option and that the TCRαβ/CD19 method could give kids with these conditions a better chance to live without severe complications.
View Article and Find Full Text PDF

Hematopoietic cell transplantation (HCT) remains the sole available curative treatment for Fanconi anemia (FA), with particularly favorable outcomes reported after matched sibling donor (MSD) HCT. This study aimed to describe outcomes, with a special focus on late complications, of FA patients who underwent umbilical cord blood transplantation (UCBT). In this retrospective analysis of allogeneic UCBT for FA performed between 1988 and 2021 in European Society for Blood and Marrow Transplantation (EBMT)-affiliated centers, a total of 205 FA patients underwent UCBT (55 related and 150 unrelated) across 77 transplant centers.

View Article and Find Full Text PDF

What Is This Summary About?: Severe aplastic anemia (SAA) and very severe aplastic anemia (vSAA) are blood diseases of the bone marrow. If a suitable donor for bone marrow transplant as initial treatment is unavailable, standard immunosuppression is used. Standard immunosuppression treatment includes horse antithymocyte globulin (hATG) and cyclosporin A (CsA).

View Article and Find Full Text PDF

The genetic diversity of the human leukocyte antigen (HLA) system was shaped by evolutionary constraints exerted by environmental factors. Analyzing HLA diversity may allow understanding of the underlying pathways and offer useful tools in transplant setting. The aim of this study was to investigate the HLA haplotype diversity in patients with sickle cell disease (SCD,  = 282) or β-thalassemia (β-Thal,  = 60), who received hematopoietic cell transplantation (HCT) reported to Eurocord and the Société Francophone de Greffe de Moelle et de Thérapie Cellulaire (SFGM-TC).

View Article and Find Full Text PDF
Article Synopsis
  • Researchers evaluated the transplant conditioning intensity (TCI) score on a group of 4060 patients with acute myeloid leukemia who underwent allogeneic hematopoietic cell transplantation between 2018 and 2021.
  • Patients were categorized into three TCI categories (low, intermediate, high) based on their scores, allowing assessment of the TCI's ability to predict outcomes like non-relapse mortality and relapse risk.
  • Results showed that the TCI score effectively stratified patients by risk, demonstrating its relevance in predicting complications associated with transplant conditioning regimens.
View Article and Find Full Text PDF

Paroxysmal nocturnal hemoglobinuria (PNH) is characterized by uncontrolled terminal complement activation leading to intravascular hemolysis (IVH), thrombosis, and impairments in quality of life (QoL). The aim of this study was to identify the clinical drivers of improvement in patient-reported outcomes (PROs) in patients with PNH receiving the complement component 5 (C5) inhibitors eculizumab and ravulizumab.This post hoc analysis assessed clinical outcomes and PROs from 246 complement inhibitor-naive patients with PNH enrolled in a phase 3 randomized non-inferiority study that compared the C5 inhibitors ravulizumab and eculizumab (study 301; NCT02946463).

View Article and Find Full Text PDF
Article Synopsis
  • Androgens have historically been used to treat bone marrow failure (BMF) syndromes, but there's limited prospective data on their effectiveness and safety in these conditions.
  • A retrospective analysis involving 274 BMF patients from various European centers showed low remission rates after androgen treatment, with varying survival outcomes based on the type of BMF.
  • The study highlights the potential for androgens to be a manageable treatment option with minimal severe side effects, supporting their continued use and setting the groundwork for future clinical recommendations.
View Article and Find Full Text PDF

We previously analyzed trends in incidence and factors associated with lethal complications in ALL/AML/CML patients (causes of deaths; COD-1 study). The objective of this study was the analysis of incidence and specific causes of death after HCT, with focus on infectious deaths in two time periods, 1980-2001 (cohort-1) and 2002-2015 (cohort-2). All patients with HCT for lymphoma, plasma cell disorders, chronic leukemia (except CML), myelodysplastic/myeloproliferative disorders, registered in the EBMT-ProMISe-database were included (n = 232,618) (COD-2 study).

View Article and Find Full Text PDF

For hematopoietic cell transplantation (HCT) and cellular therapy (CT), clinical patient care is localized, and practices may differ between countries and from center to center even within the same country. Historically, international guidelines were not always adapted to the changing daily clinical practice and practical topics there were not always addressed. In the absence of well-established guidelines, centers tended to develop local procedures/policies, frequently with limited communication with other centers.

View Article and Find Full Text PDF

Survival after allogeneic hematopoietic stem cell transplantation (allo-HSCT) for severe idiopathic aplastic anemia (SAA) has improved in recent years, approaching 75% at 5 years. However, an SAA-adapted composite endpoint, graft-versus-host disease (GvHD) and relapse/rejection-free survival (GRFS), may more accurately assess patient outcomes beyond survival. We analyzed GRFS to identify risk factors and specific causes of GRFS failure.

View Article and Find Full Text PDF
Article Synopsis
  • The role and timing of allogeneic hematopoietic stem cell transplantation (HSCT) in treating acute myelogenous leukemia (AML) have been debated for decades, with reliance on the European LeukemiaNet classification for treatment strategies.
  • A study found that HSCT significantly improved overall survival for intermediate- and poor-risk AML patients, particularly younger patients, while showing low cumulative incidence rates for older groups due to factors like comorbidities and eligibility.
  • With increasing access to various donor types, including haploidentical ones, the role of HSCT in AML treatment may evolve, potentially increasing transplant numbers in adult patients.
View Article and Find Full Text PDF

From 2016 EBMT and JACIE developed an international risk-adapted benchmarking program of haematopoietic stem cell transplant (HSCT) outcome to provide individual EBMT Centers with a means of quality-assuring the HSCT process and meeting FACT-JACIE accreditation requirements relating to 1-year survival outcomes. Informed by previous experience from Europe, North America and Australasia, the Clinical Outcomes Group (COG) established criteria for patient and Center selection, and a set of key clinical variables within a dedicated statistical model adapted to the capabilities of the EBMT Registry. The first phase of the project was launched in 2019 to test the acceptability of the benchmarking model through assessment of Centers' performance for 1-year data completeness and survival outcomes of autologous and allogeneic HSCT covering 2013-2016.

View Article and Find Full Text PDF

In 2021, 47,412 HCT (19,806 (42%) allogeneic and 27,606 (58%) autologous) in 43,109 patients were reported by 694 European centers. 3494 patients received advanced cellular therapies, 2524 of which were CAR-T treatments, an additional 3245 received DLI. Changes compared to the previous year were CAR-T treatment (+35%), allogeneic HCT +5.

View Article and Find Full Text PDF
Article Synopsis
  • Drug-target-drug complexes (DTDCs) were observed in patients transitioning from eculizumab to crovalimab for treating paroxysmal nocturnal hemoglobinuria (PNH), due to the different ways these drugs bind to C5.
  • In a phase I/II study, patients experienced transient reductions in crovalimab levels and the formation of DTDCs, with some mild hypersensitivity reactions noted.
  • A mathematical model helped optimize crovalimab dosing, resulting in over a 50% reduction of large DTDCs and improved safety, showing that careful dosing can enhance treatment outcomes for patients using new antibody therapies.
View Article and Find Full Text PDF
Article Synopsis
  • * Between 2009 and 2016, global HSCT use for AML rose significantly, particularly in resource-limited regions, with an overall 54.9% increase, although access remains heavily skewed towards high-resource areas.
  • * Utilization rates vary widely by region, with younger patients (<70 years) experiencing even more disparities; AMR-N showed the highest rates of HSCT, while AFR/EMR and AMR-S lagged far behind.
View Article and Find Full Text PDF