View clinical trials related to HTLV-I Infections.
Filter by:The purpose of this study is to evaluate the outcome (survival) of Adult T-cell leukemia / lymphoma (ATL) patients who receive or not specific treatment for their hemopathy (cohort 1) and the outcome (survival) of HTLV-1 chronically infected patients with / without extra-haematological disorders (cohort 2).
This phase I trial studies the side effects and best dose of lenalidomide when given together with usual combination chemotherapy (etoposide, prednisone, vincristine sulfate [Oncovin], cyclophosphamide, and doxorubicin hydrochloride [hydroxydaunorubicin hydrochloride], or "EPOCH") in treating adult T-cell leukemia-lymphoma. Lenalidomide may help shrink or slow the growth of adult T-cell leukemia-lymphoma. Drugs used in chemotherapy, such as etoposide, vincristine, cyclophosphamide, and doxorubicin, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Anti-inflammatory drugs such as prednisone lower the body's immune response and are used with other drugs in the treatment of some types of cancer. Giving lenalidomide and the usual combination chemotherapy may work better in treating adult T-cell leukemia-lymphoma compared to the usual combination chemotherapy alone.
The main objective of the research will be to analyze, through surface electromyography, the impact of inspiratory muscle training before a supervised home training protocol in patients with human T-cell lymphotropic virus type 1 (HTLV-1). For this, a clinical, longitudinal, prospective, quantitative and single center trial will be carried out, aiming at home inspiratory muscle training lasting 5 weeks, 3 times a week, 30 minutes daily through the IMT Threshold, with 14 volunteers enrolled in the Laboratory of Studies in Functional Rehabilitation (LAERF) of the Federal University of Pará (UFPA). They will be classified as the manifestation of Tropical Spastic Paraparesis / Myelopathy (PET / MAH) for GP (PET / MAH probable) and GD (PET / MAH definitive) groups, obeying inclusion criteria. For characterization of expiratory flow rates and flows, as well as respiratory muscle strength, they will be submitted to spirometry and manovacuometry, pre, per, and post treatment, respectively. For the analysis of the electromyographic activity, the diaphragm, parasternal and sternocleidomastoid muscles will be counted in the follow-up during the analysis of inspiratory muscle strength, as well as once a week during the conduction of the inspiratory muscle training protocol. The collected data will be stored in a Microsoft Office Excel® 2010 worksheet and then submitted to statistical analysis using the Bioestat 5.0® program, adopting a standard error of 5%. The theoretical support of the research will have a bibliographical survey of scientific articles collected during the design of the project, and the accomplishment of the research. It is expected to map, through the surface electromyographic study, the impact of respiratory muscle training at a distance on the inspiratory muscle strength of patients with HTLV-I virus with probable or definitive PET / MAH.
This post-market study is intended to assess the performance of the HTLV Blot 2.4 in repository serum/plasma specimens with neurological disorders (n=100) or an HTLV known positive infection (n=50).
The purpose of this study is to assess the validity and reproducibility of the MP Diagnostics HTLV Blot 2.4 in blood specimens testing repeat reactive (RR) on the first FDA licensed screening assay (Abbott Prism) and non-reactive (NR) on the second FDA licensed screening assay (Avioq ELISA).
This is a pilot study of intervention in a group of patients with tropical spastic paraparesis/ myelopathy to evaluate virologic and clinical response of raltegravir plus zidovudine in this group of patients.
This phase II trial studies how well nivolumab works in treating patients with human T-cell leukemia virus (HTLV)-associated T-cell leukemia/lymphoma. Nivolumab is an antibody, which is a type of blood protein that tags infected cells and other harmful agents. Nivolumab works against a protein called programmed cell death (PD)-1 and may help the body destroy cancer cells by helping the immune system to keep fighting cancer.
Background: - Human T-cell lymphotropic virus type 1 associated myelopathy/tropical spastic paraparesis (HAM/TSP) is an infection of the spinal cord. The infection is caused by a virus that has been known to cause cancers like leukemia and lymphoma. It causes a weakening of the legs. Researchers want to see if raltegravir, a drug for treating human immunodeficiency virus (HIV), can be used to treat HAM/TSP. They will see if the drug can reduce the amount of virus in the blood of people with HAM/TSP. Objectives: - To see if raltegravir can reduce the viral load of people with HAM/TSP. Eligibility: - Individuals at least 18 years of age who have HAM/TSP. Design: - Participants will be screened with a physical exam and medical history. Blood samples will be collected. Imaging studies will be performed. A lumbar puncture will also be taken. - Participants will take the study drug twice a day for 6 months. They will note each dose in a study diary, as well as any side effects. - At the 6-month visit, participants will stop taking the study drug. They will have a physical exam and blood samples, as well as other tests. - Participants will have two further exams 9 months and 15 months after starting the study drug. They will have a physical exam and blood samples, as well as other tests.
Only 5 to 10% of patients infected with HTLV-1 develop a disease related to infection. The two most serious diseases are adult T-cell leukemia (ATL) and Tropical spastic paraparesis /HTLV-I-associated myelopathy (TSP / HAM). Factors influencing the development of TSP / HAM in the individual HTLV-1 are not yet completely understood. Patients TSP / HAM have a HTLV-1 proviral load (amount of virus) that is 6-10 times higher than seropositive asymptomatic. Various studies have shown that the development of TSP / HAM in the subject HTLV-1 and its rapid evolution is partly attributed to the failure of the immune system that regulates viral replication and expression. It has recently been shown that different versions of Single Nucleotide (human leukocyte antigen) rs12979860, located upstream of the gene for Interleukin 28B (IL28B), influenced the severity of infection with hepatitis C and effectiveness of treatment. By analogy with hepatitis C, a Spanish (Treviño et al., 2012) examined this SNP(single nucleotide polymorphism) in 12 patients TSP / HAM and 29 asymptomatic HIV-positive. CT or TT genotype was statistically more frequent in the group TSP / HAM than in asymptomatic patients (80% versus 20%) and was associated with HTLV-1 proviral load higher. We propose a broader group of patients in our population and Afro-Caribbean, to confirm the results of the latter study was conducted in a predominantly Latin American population.
Background: - Information and samples collected from participants in medical research studies can be useful even after the original study is complete. Researchers can use the information and samples to learn more about multiple sclerosis or other immune system disorders. They can also be used for research into other disorders. Researchers would like to get permission to use samples collected from older studies to launch new lines of research. Objectives: - To look at information and samples from earlier National Institutes of Health Neuroimmunology Branch studies. Eligibility: - People who provided samples and medical information for earlier studies. Design: - Researchers will contact people who took part in earlier studies. Researchers will ask if they can study previously collected data and samples. - Data and samples may include physical exam data and psychological test results. Imaging study results are included. Preserved samples of body fluids and tissues may be studied. These include blood and urine samples. - No new treatment will be provided as part of this research study.