View clinical trials related to Cytomegalovirus Infections.
Filter by:The goal of this observational study is to compare the CMV infection and reactivation after allogeneic hematopoietic stem cell transplantation Between Standard Regimen, Methotrexate plus Cyclosporin A, and Post-transplant Cyclophosphamide-based Regimen. The main questions it aims to answer are: - How do CMV infection and reactivation differ between Allo-SCT patients who received a standard regimen versus those who received a Post-transplant Cyclophosphamide-based regimen? - progression-free survival, Median overall survival, cumulative incidence of relapse, non-relapsed mortality (NRM) and GvHD at 2 years after Allo-SCT - The impact of CMV infection and CMV reactivation on progression-free survival, overall survival, and NRM - Averse events of GVHD prophylaxis medication Participants will be collected the data of treatment and treatment response during transplant until 2 years after transplant from hospital medical record.
The two main cytomegalovirus (CMV) prevention strategies are prophylaxis and preemptive therapy. Prophylaxis effectively prevents CMV infection after solid organ transplantation (SOT), but is associated with high rates of neutropenia and late onset of post-prophylactic disease. In contrast, preemptive therapy has the advantage of leading to lower rates of CMV disease and robust humoral and T-cell responses. It is widely used in hematopoietic cell transplant recipients, but is rarely used after solid organ transplant recipients due to logistical considerations.
Context Cytomegalovirus (CMV) infection is a frequent and potentially severe event in solid organ transplant (SOT) recipients. Most of available treatment display adverse effects that limit their use. Therefore, in case of an infection, it is of primary importance to identify the patients at high risk of severe infection and/or disease, and who ill benefit the most from antiviral therapy. As CMV infection is mainly controlled by cellular immunity, measuring specific anti-CMV T lymphocyte immunity could be an interesting tool for identifying these at-risk individuals. One of these tests is the QuantiFERON-CMV (QF-CMV) assay (QuiagenTM, Courtabœuf, France). Aim of the study The aim of the study is to determine the extent to which the QF-CMV can be use to identify, among SOT recipients with a CMV viremia, those that may not need antiviral therapy. Methods Participation to the study will be proposed to SOT recipients with an asymptomatic CMV infection with a blood viral load between 1,000 and 15,000 IU/mL. The QF-CMV will be performed in included participants, and the result will be given or not to the clinician in charge (according to the attributed group through randomisation). - In the group without result communication, the clinician in charge will determine whether a treatment is needed according to the guidelines and the local practices. - in the group with result communication, the clinician in charge will be advised not to introduce antiviral therapy if the result is positive, and to determine whether a treatment is needed according to the guidelines and the local practices if the result is positive. In the following weeks, the viral load will be monitored, along with creatininemia, cell blood count, and kalemia (to detect antiviral adverse effect). The participants will be sampled: - 5 to 12 days after QF-CMV sampling (V2) ; - 7 to 14 days days after V2 (V3 - between D12 and D26) ; - 7 to 14 days days after V3 (V4 - between D19 and D40) . Endpoints The primary endpoint is the rate of uncontrolled infection 5 to 12 days after QF-CMV sampling, defined as follows: - Blood CMV viral load >10,000 IU/mL [4 log]; - And/or increase in blood viral load ≥0.5 log IU/mL with CV otherwise >5000 IU/mL; - And/or the onset of CMV disease. The secondary endpoint is the is the occurrence antiviral adverse effects (hematoxicity or nephrotoxicity).
The purpose of this study is to evaluate the efficacy and the tolerance of letermovir as part of dual antiviral therapy (in association with valganciclovir) in renal transplant recipients with CMV DNAemia, requiring valganciclovir treatment per investigator's judgment.
The main aim of this study is to assess the safety profile of maribavir when treating refractory cytomegalovirus (CMV) infection after transplantation in adults with kidneys that are no longer functioning on their own (also called end-stage renal disease or ESRD) or have severe chronic kidney disease requiring artificial filtering of the kidney (dialysis) or the blood (hemodialysis). In this study, already existing data will be collected from the participant's medical records. The study will only review data collected as part of the normal clinical routine and will not impact the standard medical care and treatment of participants.
The main aim of this study is to learn about the safety of Maribavir in adults with post-transplant cytomegalovirus (CMV) infection in routine clinical practice in Argentina. The other aim is to study the effectiveness of the treatment with Maribavir in routine clinical practice in Argentina. Participants will be treated by their doctors according to normal medical practice. Study data will be collected either from information already available in the medical records or during study conduct.
This is a Phase 1 single-arm open-label study of letermovir in neonates with symptomatic congenital Cytomegalovirus (CMV) disease. There will be two groups enrolled. Group 1 will be comprised of 4 subjects. Following documentation study inclusion and signing of informed consent, Group 1 subjects will receive one dose of oral letermovir (Study Day 0), using the dose bands. A full pharmacokinetics (PK) profile will then be obtained over the next 24 hours, and blood specimens will be shipped immediately to the University of Alabama at Birmingham (UAB) Pharmacokinetic Lab and processed in real time. Within = 7 days, pharmacokinetics (PK) results will be conveyed to the study site. If the Area Under the Curve (AUC24) is = 100,000 ngxhr/mL (see footnote a in Table 1), the subject will initiate a 14-day course of once-daily oral letermovir at the same dose as utilized on Study Day 0. This duration of letermovir therapy was selected based upon our earlier observation in this population that patients with symptomatic congenital Cytomegalovirus (CMV) disease who achieve viral suppression to = 2.5 log by day 14 of valganciclovir therapy and then maintain it over the next 4 months are statistically more likely to have improved hearing across the first two years of life (22). If the observed letermovir exposure of the subject is > 100,000 ngxhr/mL, the once-daily oral letermovir dose that will be used will be adjusted down in 2.5 mg increments. Oral valganciclovir (16 mg/kg/dose BID) will begin within the first month of life, as standard of care; initiation of valganciclovir can be concomitant with or prior to initiation of the 14-day course of letermovir (but will not start before obtaining the pharmacokinetics (PK) specimens following the single dose of letermovir on Study Day 0). This is similar to the intensification approach that has been evaluated in the management of patients infected with human immunodeficiency virus (23-25). The day that the 14-day course of letermovir begins for Group 1 subjects will be known as Study Day 1. Serial blood samples will be obtained on Study Days 1, 5, 10, and 14 for safety chemistry and hematology labs and for Cytomegalovirus (CMV) viral loads. Cytomegalovirus (CMV) viral load will be followed as well on Study Days 21 and 42 to assess for rebound in Cytomegalovirus (CMV) following cessation of letermovir treatment on Study Day 14. Saliva and urine viral loads will be followed at these timepoint as well. Full pharmacokinetics (PK) profiles for both letermovir and ganciclovir will be obtained on Study Day 10. In addition, sparse pharmacokinetics (PK) sampling will be obtained on Study Days 1, 5, and 14. Adverse events will be assessed at each study visit during treatment, and at Study Days 21 and 42 (4 weeks after the last study drug dose). Subjects then will continue on oral valganciclovir as routine clinical care to complete an anticipated 6 month duration of total therapy. The primary Objective is to determine the systemic exposure (AUC24) of letermovir following administration of oral letermovir granules in infants with symptomatic congenital CMV disease.
To evaluate the safety and tolerability of partial HLA-matched VSTs against both CMV and EBV viruses in recipients of allogeneic hematopoietic stem cells with refractory viral infections (CMV and/or EBV). Preliminary evaluation of the efficacy of partial HLA-matched VSTs against both CMV and EBV viruses in recipients of allogeneic hematopoietic stem cells with refractory viral infections (CMV and/or EBV); To monitor the duration and expansion of multi-virus VSTs cells after infusion.
Open label study to determine tolerability and efficacy of letermovir for CMV prophylaxis in heart and lung transplant recipients and compare it to the efficacy of valganciclovir historical controls. The study hypotheses are: 1. Letermovir prophylaxis will be associated with similar rates of CMV infection as valganciclovir among heart and lung transplant recipients 2. Letermovir will be better tolerated than valganciclovir for CMV prophylaxis in heart and lung transplant recipients, with a higher proportion of days of completed therapy with correct dosing during the planned prophylaxis period 3. Letermovir will have a lower rate of neutropenia than valganciclovir when used for CMV prophylaxis in heart and lung transplant recipients 4. Incorrect renal dosing will occur less frequently with letermovir than with valganciclovir when used for CMV prophylaxis in heart and lung transplant recipients
Letermovir is approved for the primary prevention of Cytomegalovirus (CMV) reactivation and infection in hematopoietic stem cell transplant recipients. Letermovir may be beneficial in other clinical presentation where CMV reactivates and may alter clinical outcomes. Recently Chimeric Antigen Receptor (CAR) T cells have been used for the treatment of refractory acute leukemia and B cell lymphoma. Reactivation of chronic viral infections, in particular those belonging to the Herpesviridae family can therefore be observed following CAR-T cells treatment.According to first reports, Cytomegalovirus seems to be the main virus detected. Uncontrolled CMV reactivation leads to CMV disease requiring the use of antiviral drugs associated with either hematological toxicity (ganciclovir) or renal toxicity (foscarnet) and is usually associated with poor outcomes. In addition, CMV interplays with the immune system and decreases the immunosurveillance of tumor cells and facilitates the growth or reactivation of other opportunistic infections. Therefore, CMV reactivation could also impact the outcome of CART cells treatment by increasing the existing risk of opportunistic infections in CART cells recipients and thus by increasing morbidity, length stay or require intensive care. Imbalance of the immune system usually correlates with reactivation of persistent virus like Torquetenovirus (TTV), redondovirus or pegivirus found more frequently in Hematopoietic stem-cell transplantation (HSCT) patients or patients requiring intensive care. Whether reactivations of those persistent viruses are associated or precede CMV reactivation deserve careful investigation to identify as early as possible patients at high risk and who could benefit from antiviral preventive treatment. The objective of this trial is to determine the incidence of CMV reactivation within 3 months after infusion of CAR-T cells in CMV seropositive patients with refractory acute leukemia or B-cell lymphoma.