View clinical trials related to Cytomegalovirus Infections.
Filter by:This 2 arm study will evaluate the efficacy and safety of oral Valcyte compared with intravenous ganciclovir for the treatment of CMV disease in solid organ transplant recipients. Eligible patients will be randomized to receive either 1)Valcyte 900mg po bid or 2)ganciclovir 5mg/kg iv bid. The anticipated time on study treatment is 1-2 years and the target sample size is 100-500 individuals.
The purpose of this research study is to investigate whether or not maribavir is safe and effective for preventing CMV disease when taken by mouth for up to 12 weeks in patients who have had a stem cell transplant.
The purpose of this study is to investigate if treatment of CMV infection by antiviral drug Valcyte (R) affects the clinical outcome of glioblastoma multiforme in patients with local CMV infection in tumor tissue. The investigators' hypothesis states that CMV infection promotes tumor development and disease progression and inhibits immune responses against the tumor.
PRINCIPAL ENDPOINT To value valganciclovir efficacy in advance treatment of CMV in patients received allogenic transplant with a uniform treatment. SECONDARY ENDPOINT To value valganciclovir security in advance treatment of CMV in in patients received allogenic transplant with a uniform treatment. The security will be valued by the % of patients that: Will have negative CMV Neutropenia <1000 neutrophils/mm3 or <500 neutrophils/mm3 in the first 35 days of treatment - follow-up Renal toxicity in the first 35 days of treatment - follow-up (defined by elevated creatinine >1mg/dL or twice the basal value) CMV illness during the treatment or in the next 2 months Blood Antigenemia / PCR positive in the next 2months of treatment This dates Hill be compared with a patients control group treated with intravenous valganciclovir
This study will assess the relative bioavailability of ganciclovir from the pro-drug valganciclovir in lung transplant recipients with or without cystic fibrosis. Each patient will receive 900mg valganciclovir daily for the period specified at their center, starting as soon as possible after the transplant. Pharmacokinetic assessments will be made provided that steady-state kinetics of ganciclovir and immunosuppressive drugs have been obtained (>=4 days of drug therapy). Blood samples for pharmacokinetic analysis will be taken up to 24h post-dose on one occasion. The anticipated time on study treatment is 3-12 months, and the target sample size is <100 individuals.
This is a study of prophylactic Vs preemptive oral valganciclovir for management of cytomegalovirus infection in adult renal transplant recipients looking at clinical and pharmacoeconomic outcomes
Objectives of this trial are to: Evaluate the kinetics and magnitude of the CMV-specific immune response post-Towne challenge (3000 pfu) in healthy CMV-seronegative volunteers who receive VCL CT02 administered (1 mg weekly x 3) 3 months previously compared to randomized controls who do not receive VCL CT02 as measured by: 1. antibody titers for gB; 2. T-cell IFN-g ELISPOT; 3. T-cell proliferation assays for IE1, pp65, and/or gB; and 4. cytokine and phenotypic flow cytometry responses to pp65, IE1, and/or gB. Evaluate the safety safety of Towne challenge in healthy CMV-seronegative adult subjects who have previously been immunized with a trivalent pDNA CMV vaccine (VCL-CT02) administered intramuscularly. Our hypothesis is that the immune response to Towne vaccine 3000 pfu challenge after VLC-CT02 priming will be greater than that after Towne vaccination alone.
Study Phase: IV Study Type: Open-label, multicenter, randomised clinical trial with two arms stratified for an intensified immunosuppressive regimen in patients at high risk for acute rejection. Study Description: 148 kidney transplant recipients at risk for CMV disease were randomized and treated with ganciclovir capsules for 3 months (Group A, prophylaxis, N=74) or received ganciclovir IV only in case of proven CMV viral load (Group B, preemptive therapy, N=74). Initially, a 2 months follow up was planned in this trial. However, the study group decided to offer a longterm follow up to all patients and amended the protocol, respectively. The aim of the study was to identify the most efficacious way to prevent renal transplant recipients from CMV disease and to find out, if one of these two strategies may increase graft or patient survival. Therefore, both wellknown approaches of CMV prevention were compared in two study groups: Prophylaxis (Group A): Oral primary prophylaxis with ganciclovir capsules was started directly after transplantation and performed until day 90. In case of CMV infection (proven CMV viral load) or symptomatic CMV disease, treatment with ganciclovir IV was initiated. Preemptive Therapy (Group B): No oral primary prophylaxis was given. Treatment with ganciclovir IV was given to patients with proven CMV viral load (CMV infection or CMV disease) only.
This 2 arm study will compare the efficacy of 100 days of Valcyte (900mg po daily) prophylaxis with that of no prophylaxis, under the condition of pre-emptive therapy of active CMV infection, in CMV positive renal transplant recipients. The influence of the two prevention concepts on the occurrence of direct and indirect effects of active CMV infections will be compared. The anticipated time on study treatment is 3 months-1 year, and the target sample size is 100-500 individuals.
Objectives of this trial are to: 1. Evaluate the kinetics and magnitude of the CMV-specific immune response post-Towne challenge (3000 pfu) in healthy CMV-seronegative volunteers who received VCL CT02 administered ID or IM 9 to 15 months previously as measured by: 1) ELISA and/or virus-neutralizing antibody titers for gB; 2) T-cell IFN-g ELISPOT; 3) T-cell proliferation assays (CFSE) for IE1, pp65, and/or gB; and possibly 4) cytokine and phenotypic flow cytometry responses to pp65, IE1, and/or gB. 2. Evaluate the safety safety of Towne challenge in healthy CMV-seronegative adult subjects who have previously been immunized with a trivalent pDNA CMV vaccine (VCL-CT02) administered intramuscularly (IM) or intradermally (ID). Our hypothesis is that the immune response to Towne vaccine 3000 pfu challenge after VLC-CT02 priming will be greater than that after Towne vaccination alone (concurrent controls will be administered Towne alone in a concurrent, companion trial).