16 Clinical Trials for Various Conditions
Background: * Polyomavirus are DNA-based viruses that infect vertebrates, including humans. Most people are not harmed by polyomavirus infection, but people with compromised immune systems may be harmed by these viruses, and are at greater risk for developing certain types of rare cancers. * A recently discovered virus called Merkel cell polyomavirus (MCV) is a type of skin infection commonly found in humans. By using skin swabs to collect MCV, researchers hope to develop a laboratory culture model of MCV for future research. Objectives: - To use skin swabs to collect samples of Merkel cell polyomavirus for future study. Eligibility: - Individuals 18 years of age and older who are employed in the National Cancer Institute's Laboratory of Cellular Oncology. Design: * Participants will wipe a cotton swab across their forehead and eyebrows, and break off the end of the swab into a microcentrifuge tube. This procedure will be performed after work hours. * No other treatment or procedure will be given as part of this protocol.
Evaluate techniques for monitoring the course of interstitial therapy for polyomavirus nephritis in kidney and kidney pancreas transplant recipients by monitoring blood, urine, and renal transplant biopsies of patients affected by polyomavirus.
This Phase I clinical trial will evaluate the safety, tolerability, and immunogenicity of 4 mg doses of ITI-3000 in participants with polyomavirus-positive Merkel cell carcinoma (MCC).
Background: Progressive Multifocal Leukoencephalopathy (PML) is a brain infection in people with a weakened immune system. Researchers think polyoma virus specific T cells (PyVST) therapy can treat PML. The PyVST cells are made from blood cells of a healthy relative. They are grown in a lab to expand the virus-killing cells, then given to the person with PML. Objective: To test whether PyVST safely treats PML. Eligibility: * Adults ages 18 and older with PML * Healthy adults ages 18 and older who have: * Been screened under protocol 97-H-0041 * A sibling, parent, or child with PML and matching cells Design: * Participants will be screened with: * Medical history * Physical exam * Blood and urine tests * PML participants will also be screened with: * Cerebrospinal fluid removed by needle in the back. * MRI: A dye is injected in a vein. They lie on a table that slides into a cylinder. * Questionnaires Healthy participants will have apheresis: Blood flows through a needle in one arm into machine that separates blood cells needed for donation. The rest of the blood is returned by needle to the other arm. Some participants may have a central line placed in a vein instead. They can have apheresis up to 3 times, at least 28 days apart. Participants with PML will receive the PyVST cells by needle in the arm. They will stay in the hospital 1 week. They can do this up to 3 times, at least 28 days apart. After each infusion, they will have weekly visits for 1 month. Then they will have 4 visits over 1 year. Visits include repeats of screening tests.
The human BK polyomavirus is a significant risk factor for renal transplant dysfunction and allograft loss. The prevalence of BK viremia (BKV) following kidney transplantation is estimated to be 10-20%.
This is a pilot study using cytotoxic T lymphocytes (CTLs) manufactured with the Miltenyi CliniMACS Prodigy Gamma-capture system will be effective in decreasing specific viral load in patients with BK virus viremia and BK virus-associated symptoms post-allogeneic hematopoietic stem cell transplantation (HSCT), renal transplantation, and chemotherapy.
This phase I/II trial studies the side effects and how well localized radiation therapy or recombinant interferon beta and avelumab with or without cellular adoptive immunotherapy works in treating patients with Merkel cell carcinoma that has spread to other parts of the body. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Interferon beta is a substance that can improve the body's natural response and may interfere with the growth of tumor cells. Monoclonal antibodies, such as avelumab, may help T lymphocytes kill tumor cells. For cellular adoptive immunotherapy, specific white blood cells are collected from the patient's blood and treated in the laboratory to recognize Merkel cell carcinoma. Infusing these cells back into the patient may help the body build an effective immune response to kill Merkel cell carcinoma. Giving localized radiation therapy or recombinant interferon beta and avelumab with or without cellular adoptive immunotherapy may be a better treatment for Merkel cell carcinoma.
The increase immunosuppression in our transplant population has led to an unacceptable rate of patients at risk for BK virus nephropathy. Reducing induction immunosuppression by switching from Thymoglobulin to Simulect will reduce the incidence of serum positivity for BK by PCR.
The purpose of this study is to assess the safety and effectiveness of a new oral immunosuppressant agent compared to standard care in renal transplant patients diagnosed with BK nephropathy.
This phase II trial studies how well donor cytotoxic T lymphocytes work in treating patients with malignancies with BK and/or JC virus. Cytotoxic T lymphocytes are made from donated blood cells that are grown in the laboratory and are designed to kill viruses that can cause infections in transplant patients and may be an effective treatment in patients with malignancies with BK and/or JC virus.
BK infection is an important cause of graft dysfunction and graft loss after renal transplantation. It has been widely accepted that emergence of BK virus correlates with the more potent immunosuppressive agents used to lower acute rejection rates. In contrast to other opportunistic infections after transplantation, for which routine prophylactic agents are administered, there is no effective agent for the prevention of BK infection. Some data, however, suggests that quinolone antibiotics such as ciprofloxacin may have activity against BK virus. This has led us to investigate whether routine, short-term ciprofloxacin administration post-transplant can lower the incidence of BK infection.
This research study is evaluating the reactivation of BK virus in patients who have undergone allogeneic hematopoietic-cell transplantation.
The purpose of this study is to analyze BK viral infection in salivary gland diseases; specifically, to determine a definitive relationship between BK Virus and HIV associated salivary gland disease (HIVSGD). Participants are adults HIV+SGD+ who will be randomized 1:1 to receive BK Virus antiviral (ciprofloxacin) or placebo for 28 days. Salivary function/protein secretion will be correlated with BK polyomavirus titers. It is expected that patients with HIV+SGD+ will have elevated oral BK polyomavirus viral loads and will benefit from Ciprofloxacin.
The subjects eligible for this trial have a type of blood cell cancer, other blood disease or a genetic disease for which they will receive a stem cell transplant. The donor of the stem cells will be either the subject's brother or sister, or another relative, or a closely matched unrelated donor. The Investigators are asking subjects to participate in this study which tests if blood cells from the subject's donor that have been grown in a special way, can prevent or be a effective treatment for early infection by five viruses - Epstein Barr virus (EBV), cytomegalovirus (CMV), adenovirus, BK virus (BKV) and human herpes virus 6 (HHV6). The Investigators have grown T cells from the subject's stem cell donor in the laboratory in a way that will train them to recognize the viruses and control them when the T cells are given after a transplant. This treatment with specially trained T cells (also called cytotoxic T cells or "CTLs") has had activity against three of these viruses (CMV, EBV and Adenovirus) in previous studies. In this study the Investigators want to see if they increase the number of viruses that can be targeted to include BKV and HHV6 using a simple and fast approach to make the cells. The Investigators want to see if they can use a kind of white blood cell called T lymphocytes (or T cells) to prevent and treat adenovirus, CMV, EBV, BKV and HHV6 in the early stages of reactivation or infection.
The goal of this clinical research study is to learn if adding cidofovir to the standard of care can improve symptoms of hemorrhagic cystitis caused by the BK virus as compared to standard of care alone. The safety of cidofovir will also be studied.
The primary objective of the study was to explore whether mefloquine can delay or stop progression of progressive multifocal leukoencephalopathy (PML) as measured by JC virus (human polyomavirus or JCV) deoxyribonucleic acid (DNA) levels in cerebrospinal fluid (CSF). The secondary objective of the study was to explore whether mefloquine can delay or stop progression of PML based on neurological deterioration, magnetic resonance imaging (MRI) measures of brain lesion evolution or the formation of new lesions, and mortality.