207 Clinical Trials for Various Conditions
The purpose of this study is to estimate the incidence of Cytomegalovirus (CMV) secondary infections (re-infections/re-activations) and the incidence of CMV primary infections in adolescent females.
This phase III trial determines whether taking prophylactic letermovir will reduce the likelihood of infection with cytomegalovirus (CMV) in children and adolescents after stem cell transplant. The treatments used to prepare for HCT reduce the body's natural infection-fighting ability and increase the likelihood of an infection with a virus called cytomegalovirus. "Prophylaxis" means to take a drug to prevent a disease or side effect. Letermovir is an antiviral drug that stops cytomegalovirus from multiplying and may prevent cytomegalovirus infection and make the disease less severe.
This phase Ib trial evaluates the safety and most effective dose of a cytomegalovirus (CMV) pp65 peptide-loaded alpha-type-1 polarized dendritic cell (CMV-alphaDC1) vaccination in patients who are undergoing an allogeneic hematopoietic stem cell transplant. CMV is an opportunistic infection that can occur or reactivate after allogeneic hematopoietic stem cell transplant as a result of immunosuppression. The CMV-alphaDC1 vaccine is made of white blood cells that have been exposed to molecules called cytokines, as well as CMV proteins. Introducing these dendritic cells to the patients immune system may activate an immune response to CMV, protecting against infection or reactivation.
The primary objective is to assess the efficacy and safety of NPC-21 when administered prophylactically to cytomegalovirus (CMV) seronegative patients receiving a first kidney transplant from a CMV seropositive donor.
The trial will evaluate the safety and efficacy of letermovir antiviral treatment of active cytomegalovirus infection or cytomegalovirus disease in patients with infections that are refractory or resistant to available treatments or who are experiencing organ dysfunction that makes unsafe the use of available antiviral treatments.
The purpose of this study is to determine if a specific type of cell-based immunotherapy, using T-cells from a donor that are specific against cytomegalovirus (CMV) is feasible to treat infections by CMV. Adoptive T-cell therapy is an investigational (experimental) therapy that works by using the blood of a donor and selecting the T-cells that can respond against a specific infectious entity. These selected T-cells are then infused to the patient, to try to give the immune system the ability to fight the infection. Adoptive T-cell therapy is experimental because it is not approved by the Food and Drug Administration (FDA).
This study is about treatment options for cytomegalovirus infections in people who have received stem cell transplants. The main aim of the study is to check if the cytomegalovirus infection can no longer be detected after treatment with marivabir or valganciclovir. Participants will take 2 tablets of marivabir or valganciclovir and 2 tablets of placebo twice a day for 8 weeks. A placebo will look like marivabir or valganciclovir but will not have any medicine in it. After treatment, each participant will be followed up for up to 12 weeks. Participants will visit their study clinic up to 18 times during the study.
This phase II trial studies how well donor cytomegalovirus-specific cytotoxic T-lymphocytes work in treating patients with a cytomegalovirus infection that has come back or has not gotten better despite standard therapy. White blood cells from donors who have been exposed to cytomegalovirus may be effective in treating patients with a cytomegalovirus infection.
This randomized phase I trial studies the side effects of vaccine therapy in preventing cytomegalovirus (CMV) infection in patients with hematological malignancies undergoing donor stem cell transplant. Vaccines made from a tetanus-CMV peptide or antigen may help the body build an effective immune response and prevent or delay the recurrence of CMV infection in patients undergoing donor stem cell transplant for hematological malignancies.
The purpose of the study is to assess the incidence and severity of late Cytomegalovirus (CMV) disease, defined as CMV syndrome or tissue invasive disease occurring between 100 and 200 days and after 200 days post-transplant in patients treated with valganciclovir per package insert guidelines for prophylaxis against CMV infection for 200 days post-transplant versus valganciclovir per package insert guidelines for 100 days post-transplant with Cytogam 100 mg/kg administered at 90 days, 120 days, and 180 days post-transplant.
This was a multicenter, randomized, double-blind, placebo-controlled, dose-escalation study of brincidofovir (BCV) administered orally once or twice weekly for up to 11 weeks. Dosing was initiated immediately following engraftment (between Days 14-30 post-transplant) to prevent/control cytomegalovirus (CMV) infection or prevent disease in R+ hematopoietic stem cell transplant (HCT) recipients.
RATIONALE: White blood cells that have been treated in the laboratory may kill cells that are infected with cytomegalovirus. PURPOSE: This phase I trial is studying how well cytotoxic T cells work in treating patients who have undergone donor stem cell transplant and have cytomegalovirus infections.
RATIONALE: Vaccines may help the body build an effective immune response to kill cytomegalovirus infections. PURPOSE: This phase I trial is studying the side effects and best dose of vaccine therapy in treating patients who have undergone a donor stem cell transplant and have cytomegalovirus infection that has not responded to therapy.
The purpose of this trial is to determine if preemptive therapy with oral valganciclovir is as effective as intravenous ganciclovir in clearing cytomegalovirus (CMV) viremia as determined by quantitative CMV polymerase chain reaction (PCR) assay in patients who have undergone bone marrow or peripheral blood stem cell transplant.
The purpose of this research study is to test the safety of and the body's response to an experimental cytomegalovirus (CMV) vaccine (called gB/MF59 vaccine). Participants will include approximately 400 healthy females, ages 12-17, recruited from adolescent clinics at Cincinnati Children's Hospital Medical Center, Vanderbilt University Medical Center, Baylor College of Medicine, University of Texas School of Public Health, Houston, and the University of Texas Medical Branch at Galveston. Participants will receive 3 doses of vaccine or placebo (saltwater) on a 0, 1, and 6 month schedule. Study procedures will include blood and urine samples. Participants will complete a diary recording temperatures and any side effects experienced. Subjects will be involved in study related procedures for up to 31 months.
RATIONALE: Antivirals such as valacyclovir act against viruses and may be effective in preventing cytomegalovirus. It is not yet known if valacyclovir is effective in preventing cytomegalovirus in patients undergoing stem cell transplantation. PURPOSE: Randomized phase III trial to determine the effectiveness of valacyclovir in preventing cytomegalovirus in patients who are undergoing donor stem cell transplantation.
This study will compare different ways of giving the drugs ganciclovir and valganciclovir to kidney or kidney and pancreas transplant recipients to determine the most effective dose of valganciclovir for protecting against cytomegalovirus (CMV) infection in these patients. One of the most common viral infections following organ transplant, CMV can cause serious illness and even death. Ganciclovir reduces the incidence of CMV disease after kidney transplantation. The drug is given either intravenously (through a vein) twice a day or by mouth 3 times a day. Valganciclovir is converted to ganciclovir in the body and is absorbed into the bloodstream better than oral ganciclovir. In most transplant patients, a single daily dose of valganciclovir prevents CMV. Because of these advantages, some transplant patients are being given valganciclovir instead of ganciclovir to prevent CMV infection. However, the drug has not been studied in kidney and kidney transplant patients. This study will provide dosing information for this patient population. Patients 18 years of age and older who have had a kidney or kidney and pancreas transplant at the NIH Clinical Center may be eligible for this study. Participants will undergo the following treatments and procedures: - Phase 1 - Treatment with intravenous ganciclovir for at least 7 days after transplantation. Sometime before starting phase 2, patients will provide a 24-hour urine collection to test for kidney function. The day before starting phase 2, they will have a cannula (small needle) inserted into an arm vein for about 12 hours to draw blood samples-one before starting the ganciclovir infusion, then at 15, 30, 60, and 90 minutes, and 2, 4, 6, 8, and 12 hours after the dose. * Phase 2 - Treatment with oral valganciclovir once a day for 7 to 21 days at a dose approximately equivalent to intravenous ganciclovir. Sometime between 4 and 21 days on this dose, patients will have blood sampling in the morning before taking the drug and then at 0.5, 1, 1.5, 2, 4, 6, 8, 12, and 24 hours after the dose. * Phase 3 - Treatment with valganciclovir at a dose reduced by half to approximate oral ganciclovir dosing. After at least 4 days on this dose, patients will be admitted to the hospital for 1 day for blood sampling before the drug dose and then at 0.5, 1, 1.5, 2, 4, 6, 8, 12, and 24 hours after the dose. Kidney function will be assessed by blood tests within 2 days of the blood sampling. If kidney function is not within the normal range, further dosing and blood sampling will be delayed until kidney function returns to the normal range. - Phase 4 - Treatment with oral ganciclovir every 8 hours. After at least 4 days on this regimen, patients will be admitted to the hospital for 1 day for blood sampling before the drug dose and then at 0.5, 1, 1.5, 2, 4, 6, and 8 hours after the dose. Kidney function will be estimated by blood tests within 2 days of the blood sampling. If kidney function is not within the normal range, further dosing and blood sampling will be delayed until kidney function returns to normal range. After completing phase 4, patients will continue valganciclovir daily or oral ganciclovir treatment and blood sampling for a length of time prescribed by the transplant surgeon.
RATIONALE: Antivirals such as valganciclovir act against viruses and may be effective in preventing cytomegalovirus. It is not yet known if valganciclovir is effective in preventing cytomegalovirus. PURPOSE: This randomized phase III trial is studying valganciclovir to see how well it works in preventing cytomegalovirus in patients who have undergone donor stem cell transplantation.
To provide ganciclovir on a compassionate use basis to immunocompromised patients with serious cytomegalovirus (CMV) infections and to study safety and efficacy in this patient population.
This study will evaluate the reliability of a new test called Real-Time Polymerase chain reaction (RT PCR) in detecting cytomegalovirus (CMV) in the blood and predicting the course of CMV disease in patients who have recently had a bone marrow transplant. The test's effectiveness will be compared with that of the "pp65 antigenemia assay" now routinely used for this purpose. CMV is a common virus that is transmitted from person to person by close personal contact. In most healthy people, CVM can remain in the body indefinitely without causing any harm. But, in people with weakened immune systems-including those who have just undergone bone marrow transplant-CMV infection can cause serious, and possibly fatal, complications. Drugs are available to treat this infection, however. Optimum treatment depends on early and accurate detection. Patients aged 10 to 80 years who are scheduled to undergo bone marrow transplant at the NIH Clinical Center as part of an NIH protocol may be eligible for this 2-phase study. In phase 1, patients will have blood drawn for both RT PCR and antigenemia testing once before the bone marrow transplantation and then weekly for the first 100 days after the transplant. During Phase 2-which begins immediately after the end of phase 1 and continues for one year after the transplant-blood samples for both tests will be drawn up to once a week. The samples for both tests will be collected at the same time and will be taken through a catheter (a thin flexible tube inserted into a vein) that has already been placed for the transplant study. RT PCR testing will require an extra 5 milliliters (1 teaspoon) above what is needed for antigenemia testing, amounting to a maximum of about one-half pint extra over the course of the 1-year study. It is hoped that the new RT PCR test will prove to be more accurate in detecting CMV infection and predicting disease development, thus enabling doctors to plan early and effective treatment.
PRIMARY: To determine the pharmacokinetics, MTD, and long-term safety and tolerance of oral ganciclovir in HIV-infected infants, children, and adolescents. SECONDARY: To evaluate the effect of oral ganciclovir on the virologic parameters of CMV. Maintenance treatment with intravenous (IV) ganciclovir for cytomegalovirus retinitis in AIDS patients is now standard therapy, but daily IV therapy can be complicated by catheter infections and thrombosis. An oral regimen of ganciclovir has been administered safely in adult AIDS patients and may be of significant benefit to children and infants as well.
The goal of STAGE I of the CMV TransmIT Study is to determine the prevalence of CMV shedding in children up to and including 36 months of age in large group childcare centers and in staff who regularly work at the center. Participants will complete a health survey and provide one saliva sample for CMV PCR testing. In addition, infrastructure for the study will be developed (e.g. community engagement to build the network of centers, data pipelines, digital platform, sampling workflows) and participant sample collection at home will be piloted. These activities will inform the design of STAGE II.
This study is designed to assess how effective letermovir is in preventing recurrence of cytomegalovirus (CMV) infection in adult kidney or kidney/pancreas transplant recipients who are UW Health patients. Participants will be in the study for about 6 months.
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 Dose Finding Day. 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 the Dose Finding Day). 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.
Open label study to determine tolerability and efficacy of letermovir for CMV prophylaxis in heart and lung transplant recipients. 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
The main purpose of the study is to evaluate the efficacy and safety of mRNA-1647 compared to placebo to prevent first clinically significant cytomegalovirus infection (CS-CMVi) in the period following cessation of CMV prophylactic treatment (for example, letermovir) on Day 100 post-HCT through Month 9 post-HCT.
This is a research study to test the tolerability and clinical effectiveness of the study drug, Letermovir (LET), when used as secondary prophylaxis following treatment of Cytomegalovirus (CMV) infection and disease in a solid organ transplant recipient. This study is an open label trial in which Letermovir will be prescribed to prevent the recurrence of CMV infection and disease in a solid organ transplant recipient following treatment of CMV infection or disease.
The main objective of this study is to evaluate the safety, reactogenicity, and immunogenicity of the mRNA-1647 vaccine administered according to a 3-study injection schedule in healthy cytomegalovirus (CMV)-seronegative and CMV-seropositive Japanese adults 18 to 40 years of age in the United States.
Participants will be randomized in a 2:1 ratio to receive either two injections of CMV-MVA Triplex® or placebo administered at study Entry/Day 0 and week 4. Vaccine Group: 60 participants will receive CMV-MVA Triplex® containing 5 x 10\^8 plaque-forming unit (pfu) ±0.5 x 10\^8 pfu of MVA Vaccine Encoding CMV Antigens by intramuscular (IM) deltoid injections. Placebo Group: 30 participants will receive a volume of placebo (7.5% Lactose in phosphate-buffered saline \[PBS\]) that matches the volume of the active vaccine injection by IM deltoid injections.
The purpose of this study is to assess the safety, reactogenicity and immune response of the candidate CMV recombinant protein subunit (CMVsu) vaccine consisting of a combination of glycoproteins B (gB) and pentamer antigens adjuvanted, regardless of baseline CMV sero-status. This FTiH study will be conducted in healthy adults 18 to 50 years of age, in which the 4 dose levels of the vaccine will be administered in a step-wise dose escalation manner, based upon safety adjudication.