View clinical trials related to Immune System Diseases.
Filter by:To evaluate safety, tolerability pharmacokinetics and immunogenicity of CDP7657.
The aim of this study is to evaluate the effects of subantimicrobial dose doxycycline (50 mg/d), administered for 12 wk, for patients with active moderate-severe Graves' Orbitopathy (GO).
The long-term goal of the investigators study is to develop a better and safer treatment for, and to potentially cure patients with single or multiple food allergies. The investigators hypothesize that the application of this protocol will allow patients with severe and single or multiple food allergies to be safely and rapidly desensitized.
The Primary Objective of the study is to develop a customized regimen for oral immunotherapy that reflects what the subject is allergic in a clinically significant way (i.e., the offending food allergen is defined as a food allergen with a positive skin test or positive specific IgE and a positive DBPCFC). Therefore, the investigators prefer that both single and multiple food allergy subjects are included in the study.
In this study the investigators are going to evaluate the efficacy pentoxifyline in HTLV-1 patients with neurological diseases: HAM/TSP or neurogenic bladder. In some laboratory experiments the investigators observed that this drug had the capacity to reduce the immune response in HTLV-1 infected cells. Since the exacerbated immune response is know to cause neurological disease in patients with HTLV-1 the investigators hope that pentoxifyline can alleviate symptoms and delay the progress of HAM/TSP in patients.
Background: - Behcet s disease (BD) is an autoimmune disease where the immune system attacks the body. People with BD may develop oral or genital ulcers, skin problems, and eye disease. Most drugs used to treat BD suppress the immune system, but they are not always helpful and may have side effects. A new drug, anakinra, may be able to treat BD with fewer side effects. Because it has not been studied in people with BD, anakinra is considered an experimental treatment. Objectives: - To test whether anakinra can be a safe and effective treatment for Behcet s disease. Eligibility: - People who have active Behcet's disease, with an oral or genital ulcer within the past month, or three or more flares of eye disease in the past 6 months. Design: - Participants will be screened with a physical exam and medical history. They will also have blood and urine tests. They will be divided into two groups: those with oral or genital ulcers and those with eye disease. - All participants will keep a diary of symptoms for a month before starting the study drug. - Participants with oral or genital ulcers will receive daily injections of anakinra for 3 to 6 months. Treatment will be monitored with frequent blood draws and daily diaries. Those who improve but do not have a full response to the drug may receive a higher dose. Those who improve after 6 months may have an extra 6 months on either anakinra or placebo to study the differences in response. - Participants with eye disease will receive anakinra for up to 12 months. Treatment will be monitored with frequent blood draws, daily diaries, and regular eye exams. - All participants will have a final study visit 1 month after stopping the study drug.
Both antiretroviral therapy (ART) and prevention of opportunistic infections (OIs) have been associated with significantly decreased mortality in HIV-infected individuals. Trimethoprim-sulfamethoxazole (TMP/SMZ), also known as bactrim, is a common antibiotic and used as prophylaxis for OIs. For countries with high prevalence of HIV and limited health infrastructure, the WHO endorses universal TMP/SMZ for all HIV-infected individuals. Notably, these guidelines were created prior to the scale-up of ARTs. Following ART and subsequent immune recovery, TMP/SMZ may no longer be required. In the US and Europe, for example, TMP/SMZ is discontinued after patients show evidence of immune recovery. Therefore, we propose a prospective randomized trial among HIV infected individuals on ART with evidence of immune recovery (ART for > 18mo and CD4 >350 cells/mm3) to determine whether continued TMP/SMZ prophylaxis confers benefits in decreasing morbidity (malaria, pneumonia, diarrhea), mortality, CD4 count maintenance, ART treatment failure and malaria immune responses.
This study is being done to evaluate the zoster vaccine response in the nursing home elderly (80 years or older). As the immune system ages, the response to vaccines is not always as strong as in younger people. Previous zoster vaccine studies have excluded nursing home residents so the vaccine effect in this population is not known. Furthermore, the immune and genetic reasons as to why the vaccine works well in some people but not in others are also unknown. The goal of this study is to evaluate why some immune systems respond well to the vaccine and why others do not.
The main purpose of this trial is to assess the safety and feasibility of treatment with two-dose infusion of allogeneic mesenchymal stem cells from adipose tissue expanded in vitro in patients undergoing haematopoietic stem cell transplantation (HSCT, who have developed chronic and extensive graft versus host disease (GVHD). Mesenchymal stem cells (MSCs) express low levels of HLA class I molecules, and do not express class II molecules neither CD40, CD80 and CD86, being unable to induce proliferation of allogeneic lymphocytes. In addition, MSCs inhibit lymphocyte proliferation by inhibiting cell division and maintaining these cells in a quiescent state. This supports the hypothesis that MSCs are universal suppressors.
The purpose of this study is to enrol generally healthy adults, who are asked to provide a blood sample, to study how the immune system works.