Active clinical trials for "Lymphoma, B-Cell"

This study is an Open-labeled, multicenter Phase II study of Bortezomib for maintenance therapy in patients with high risk diffuse large B cell lymphoma (DLBCL). Primary objective is 3 years relapse free survival (RFS) and Secondary objectives are 3 years overall survival (OS), 3 years event free survival (EFS),Toxicities profiles, Quality of Life (FACT&GOG-Ntx)

The specific immune response to SARS-CoV-2 includes a humoral response - specific IgM appearing 5 days after the onset of symptoms while IgG appears after 14 days - and a T lymphocyte component, with specific activated CD8 and CD4 T lymphocytes (Dan JM et al., Science 2021). Mortality from infection varies greatly depending on the age of the affected subjects and their comorbidities including a history of cancer (Liang W et al, 2020). Among these cancers, a history of malignant hemopathy in the 5 years preceding the onset of Covid-19 increases the risk of death by a factor of 3 (OpenSAFELY collaborative 2020). Among them, lymphoid hemopathies induce hypogammaglobulinemia and / or lymphopenia. These factors combined with chemotherapy and immunotherapy treatments promote the development of infections in affected individuals. Among these, are the anti-CD20 monoclonal antibodies, widely prescribed for treating B-cell non-Hodgkin lymphomas (B-NHL). They induce a deep and lasting B-cell lymphopenia, which can promote infections (Maschmeyer G et al, 2019). They reduce the production of antibodies and the constitution of memory responses to a new pathogen or to a vaccination. In addition, B lymphocytes likely have a key immunomodulatory role in the control of viral infections. We conducted a retrospective study in 89 patients with lymphoma and Covid-19 after the first phase of the epidemic in different centers in the Île-de-France and eastern France regions (Lamure S et al. , 2020). With a 6-month follow-up, we showed a pejorative prognostic impact of anti-CD20 monoclonal antibody treatment on Covid-19-related mortality (Duléry et al, 2021). Vaccination of these at-risk patients is therefore essential. A growing concern is how patients with B-NHL who have been vaccinated with a SARS-CoV-2 mRNA vaccine are protected against infection, depending on whether or not they have received anti-CD20 monoclonal drugs and / or chemotherapy. Knowing the medium-term immunological evolution after vaccination against SARS-CoV-2 in patients with B-cell NHL is necessary in order to be able to adapt the therapeutic and vaccine recommendations. The main objective of this study is to determine how recent treatment (in the year before vaccination) with anti-CD20 monoclonal antibody modifies the immune response after vaccination against SARS-CoV-2 in adults with B-NHL compared to patients who have not recently been exposed to this immunotherapy.

The purpose of this research is to replace one of participants' outpatient chimeric antigen receptor T-cell (CAR-T) therapy follow up visits with a virtual or "telemedicine" visit. The telemedicine visit will use an electronic tablet with a camera and a microphone that allows participants to communicate with their physicians and nurses. Participants will be provided with the necessary equipment to complete these visits.

Retrospective and prospective multi-center observational study of patients with B-cell lymphomas treated with loncastuximab tesirine treatment in real-world practice.

This is an active treatment, extended access study open solely to those subjects who have successfully completed the Core and Repeat Dosing portions of the MT-3724_NHL_001_US clinical study and who, in the investigator's judgment, (i) have not had progressive disease while on MT-3724 treatment (i.e.; have shown a complete or partial response or stable disease), (ii) have experienced no clinical or laboratory toxicities that would contraindicate further MT-3724 dosing and (iii) have no acceptable and better alternative treatment available to them.

Primary central nervous system diffuse large B cell lymphoma is a rare and aggressive entity of diffuse large B cell lymphoma. A previous transcriptomic study showed an overexpression of TIM-3 and Gal-9 in the tumor microenvironment. The investigators aimed to characterise TIM-3/Gal-9 immune checkpoints by using immunohistochemistry in the tumor microenvironment of primary central nervous system diffuse large B cell lymphoma.

The investigators analyzed clinical outcome in DLBCL patients according to age group to define the impact of EBV status on the clinical outcome.

The investigators perform a retrospective microarray gene expression profiling study of FFPE from a cohort of DLBCL patients with whole genome cDNA mediated Annealing Selection and Ligation (WG-DASL) assay. The investigators also study the pattern of microRNA from patients with diffuse large B-cell lymphoma. The results of gene expression profiles and microRNA is correlated with clinical outcomes of diffuse large B-cell lymphoma.

Newly diagnosed DLCL patients will have baselne FDG-PET as part of initial staging (PET-1). Patients will then undergo 2 cycles of chemotherapy with R/CHOP. 14 to 21 days following cycle 2 of R/CHOP, patients will undergo repeat FDG-PET scan (PET-2). They will then complete therapy as planned. Following completion of therapy, standard response assessment will be performed, including CT scans of the chest, abdomen and pelvis and FDG-PET scan (PET-3).

This study is a retrospective analysis of an homogeneous population of patients with aggressive B-cell lymphoma and treated upfront with R-CHOP or R-CHOP like regimens to reassess the prognostic factors and hopefully to identify more accurate prognostic subgroups with a clinical and therapeutical relevance.