Active clinical trials for "DNA Virus Infections"

Background: Recurrent respiratory papillomatosis (RRP) is a rare disease that causes wart-like growths in the airways. These growths come back when removed; some people may need 2 or more surgeries per year to keep their airways clear. Better treatments are needed. Objective: To see if a drug called bevacizumab can reduce the number of surgeries needed in people with RRP. Eligibility: People aged 18 and older with recurrent RRP; they must need surgery to remove the growths in their airways. Design: Participants will be screened. Their ability to breathe and speak will be evaluated. They will have an endoscopy: a flexible tube with a light and camera will be inserted into their nose and throat. They will have a test of their heart function and imaging scans of their chest. Participants will have surgery to remove the growths in their airways. Bevacizumab is given through a small tube placed in a vein in the arm. After the surgery, participants will receive 11 doses of this drug: every 3 weeks for 3 doses, and then every 6 weeks for 8 more doses. They will come to the clinic for each dose; each visit will be about 8 hours. Tissue samples of the growths will be collected after the second treatment; this will be done under general anesthesia. Participants may undergo apheresis: Blood will be drawn from a needle in an arm. The blood will pass through a machine that separates out the cells needed for the study. The remaining blood will be returned to the body through a second needle. Follow-up will continue for 1 year after the last treatment.

Oropharyngeal squamous cell carcinoma (OPSCC) is now the most frequently diagnosed head and neck cancer in Denmark which is mainly due to the increase of Human Papillomavirus (HPV). Patients with HPV-positive OPSCC have a significantly higher survival rate compared to HPV-negative OPSCC. The traditional primary treatment modality in Denmark is Intensity Modulated Radiation Therapy (IMRT), and in advanced stages in combination with chemotherapy. Since 2009, Transoral Robotic Surgery (TORS) has enabled surgeons to perform minimally invasive surgery as an alternative to standard radiotherapy treatment which is considered the primary treatment for OPSCC in many countries. There is a lack of randomised trials comparing long-term functional outcomes after TORS or IMRT. Current data are mostly derived from retrospective studies with selection bias. However, several small retrospective studies have shown promising results when comparing the two treatment modalities in favour of TORS with regards to treatment related swallowing function and quality of life (QoL) without compromising survival outcomes. This study aims to evaluate the early and long-term functional outcomes following two treatment arms 1) TORS combined with neck dissection and 2) IMRT±concurrent chemotherapy with a special focus on swallowing-related QoL.

This is a Phase 2, open label study (Study number VP-102-105; referred to as COVE-1 [Cantharidin and Occlusion in Verruca Epithelium]) to evaluate the efficacy, safety and tolerability of VP-102 treatment in subjects with common warts. This study has two Cohorts.

The primary safety objective of this study is to assess the safety of 10 mcg recombinant hepatitis B vaccine in the Chinese health neonates. The primary immunogenicity objective is to assess the antibody response following 3 doses immunization of the 10 mcg experimental dose and 10 or 5 mcg control dose, Participants will include up to 1740 healthy neonates. This is a randomized, double-blinded, Phase III study. This study is designed to investigate the safety, reactogenicity, and immunogenicity of 10ug recombinant hepatitis B vaccine (yeast). Subjects will be stratified by the mother with positive for both HBsAg and HBeAg, positive for the surface antigen but negative for HBeAg, negative for the HBsAg and HBeAg and HBeAb and HBcAb. Stratified 1: There are 180 neonates born to the mother with positive for both HBsAg and HBeAg will be randomized into two groups according to the ratio of 2:1. 120 subjects will receive the 10 mcg experimental vaccine and 60 subjects will receive 10 mcg control vaccine respectively. Stratified 2: There are 360 neonates born to the mother with positive for HBsAg but negative for HBeAg will be randomized into two groups according to the ratio of 2:1. 240 subjects will receive the 10 mcg experimental vaccine and 120 subjects will receive 10 mcg control vaccine respectively. Stratified 3: There are 1200 neonates born to the mother with negative for the HBsAg and HBeAg and HBeAb and HBcAb will be randomized into 3 groups. 600 of them will receive the 10mcg experimental vaccine. 300 subjects will receive 10mcg control vaccine. And the other 300 subjects will receive 5mcg control vaccine. The recombinant hepatitis B vaccine will be administered at m0, 1 and 6. Following each immunization, safety will be measured by assessment of adverse events through 30 days following each vaccination, serious adverse events and new-onset chronic medical conditions through 6 months post the final vaccination (Day 180 after last vaccination). For the immunogenicity testing will apply the chemiluminescence immunoassay on serum obtained on the day 0, 210 and 360 after born.

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.

The purpose of this study is to collect epidemiological data in children and adolescents with chronic hepatitis B(CHB), in particular data on the prevalence of HBeAg positive disease with associated ALT levels , active HBeAg negative disease and decompensated CHB in the pediatric population. Family history and history of HBV transmission is essential to assess the course of the disease and can be used to determine the best mode of treatment This information will be used to assist with the feasibility and design of studies for the Novartis clinical pediatric development program, as the current epidemiology of ediatric CHB is not accurately known in Western countries or the rest of the world making pediatric studies difficult to plan and conduct. This study forms part of the Novartis Pediatric Investigational Plan, a post marketing approval commitment to the EMEA Pediatric Committee.

The Geneva Blood Virome Project is a longitudinal observational study. The main objective is to describe the kinetics of the plasmatic viral load of a selection of at least 21 DNA and RNA viruses of the blood virome in allogeneic hematopoietic stem cell transplant recipients, over a one-year period after transplantation. Secondary objectives are: 1) to assess the prevalence of DNA and RNA viruses plasmatic detections and co-detections, 2) to assess the cumulative incidence of DNA and RNA viruses plasmatic detection. The population of the study consists in adult patients receiving allogeneic stem cell transplantation at the University Hospitals of Geneva, enrolled in an already existing monocentric cohort, and for which clinical specimens are collected and stored at the time and after transplantation. The investigators plan to include 120 patients whose plasma samples are collected from March 2017 and to systematically use plasma samples collected on the day of transplantation and several time points after transplantation to screen DNA and RNA viruses by qualitative and quantitative real-time PCR and RT-PCR.

Cancer is a devastating disease, presenting an immense disease burden to affected individuals and their families as well as health care systems with 10.9 million new cases and 6.7 million deaths per year. Approximately 12% of human cancers worldwide are caused by oncoviruses infection with more than 80% of cases occurring in the developing world. Tumor viruses can be classified into two groups based on their genetic material; DNA tumor viruses: Small DNA tumor viruses (Papilloma viruses, Polyoma viruses and adenoviruses). Complex DNA tumor viruses (Herpes viruses and Hepatitis B viruses). RNA tumor viruses ( Hepatitis C viruses and human T-cell leukemia virus "HTLV"). There are around 100 types of HPV, with different variations in their genetic and oncogenic potential [5]. Thus, HPV genotypes are divided into 2 groups based on their vulnerability; High risk HPV (HR-HPV) and low risk HPV (LR-HPV). The HPV genome encodes several oncoproteins [5]. E6 and E7 are the main genes responsible for cell transformation mediated by HR-HPV, and they modulate the activities of cellular proteins that regulate the cell cycle. Thus, the presence of E6/E7 can be a specific marker for diagnosing precancerous lesions by HPV. Knowledge of the etiology of virus-mediated carcinogenesis, the networking of pathways involved in the transition from infection to cancer and the risk factors associated with each type of cancer, all suggest prophylactic and therapeutic strategies that may reduce the risk of virus-mediated cancer.