View clinical trials related to Necrosis.
Filter by:The purpose of this study is to monitor the performance and determine the metal ion release of the Pinnacle™ Cup with a metal-on-metal bearing combination in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments. A subset of patients will also have blood samples taken at regular intervals to allow the metal ion levels to be determined.
This pilot study will investigate the safety and effect of etanercept in HIV infection by studying HIV replication and immune function (as measured by CD4 counts) in individuals with HIV infection.
This study evaluates femoral head resurfacing versus a large femoral head (Durom®) total hip system. This is a prospective randomized trial.
Patients with large unstable Grade IV articular surface defects, with significant subchondral bone exposure and who will likely receive a joint replacement will receive the HemiCAP™ Femoral Resurfacing Prosthesis. The Subject Device intends to offer a surgical alternative to these patients who might otherwise endure years of pain and loss of function while awaiting a more appropriate age for joint replacement surgery.
Metabolic syndrome is associated with increased inflammatory cytokines and reduced adiponectin, that may be mediated in part by TNF production from abdominal fat. We reasoned that an anti-TNF agent would reduce C-reactive protein (CRP) and increase adiponectin, improving the inflammatory milieu associated with metabolic syndrome.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Infusing melphalan directly to the tumor may kill more tumor cells and cause less damage to healthy tissues. It is not yet known whether melphalan plus tumor necrosis factor is more effective than melphalan alone for soft tissue sarcoma. PURPOSE: Randomized phase II trial to study the effectiveness of isolated limb perfusion of melphalan with or without tumor necrosis factor in treating patients who have soft tissue sarcoma of the arm or leg.
OBJECTIVES: I. Phase II trial to determine surgical morbidity of decompression coring, including any adverse events in the perioperative period and the rate of secondary medical or surgical interventions. II. Collect preliminary data to determine if decompression coring results in a substantial improvement in pain and mobility compared to conservative therapy in patients with avascular necrosis of the hip related to sickle cell disease.
To evaluate tolerance, toxicity, and preliminary evidence of antitumor efficacy of intralesionally administered tumor necrosis factor (TNF) and to define a maximum tolerated dose (MTD) for single intralesional injections. In addition, to assess the effects of TNF injections on Kaposi's sarcoma (KS) lesions as measured by P-32 magnetic resonance spectroscopy.
The purpose of this study is to determine if TNFR:Fc (a molecule that attaches to TNF) can lower the amount of IL-6 in HIV-positive patients. This study will also examine the effect of TNFR:Fc on TNF-alpha. IL-6 and TNF-alpha are 2 substances produced by the immune system that may increase the rate of HIV replication. IL-6 and TNF-alpha are produced naturally by the body. High levels of TNF-alpha lead to increased IL-6 production and increased HIV replication, therefore helping the virus infect the body. HIV-positive patients who receive IL-2 (interleukin-2, a protein that helps the immune system fight infection) tend to have higher levels of IL-6 and TNF-alpha than patients not receiving IL-2. These increased levels may contribute to some of the flu-like symptoms related to IL-2 administration. TNFR:Fc can neutralize TNF-alpha to decrease the action of TNF-alpha and, in turn, decrease the amount of IL-6 in the body. TNFR:Fc may, therefore, have a role in the treatment of HIV disease or in relieving some of the symptoms related to IL-2 administration.
To study the tolerance and toxicity of the combination of tumor necrosis factor (TNF) and interferon gamma (IFN-G) or as single agent TNF or IFN-G in HIV infected patients. To selectively monitor the immune system of AIDS related complex (ARC) patients who receive either combination therapy or TNF or IFN-G alone. To obtain information on the effectiveness of combination therapy or TNF or IFN-G alone against HIV in ARC patients. Recombinant TNF and recombinant IFN-G have been shown to be effective against the virus which causes AIDS and ARC in some laboratory studies, but may increase virus replication in other laboratory studies. Previous studies in humans showed no increase in virus cultures and some decrease in measurements of virus. Extensive preclinical data show that TNF and IFN-G are more effective together than separately in laboratory and animal studies. As single agents, both TNF and IFN-G have modest effect against HIV. Studies have demonstrated that TNF and IFN-G, in combination, can not only inhibit HIV infection of previously uninfected cells, but also can selectively induce the destruction of acutely infected target cells.