View clinical trials related to Sarcoma, Kaposi.
Filter by:To determine the seroprevalence of Kaposi's sarcoma-associated herpesvirus (KSHV/HHV8) in blood donors from Texas. Also to examine the donors' demographic characteristics and to characterize the KSHV using polymerase chain reaction.
Background: Kaposi s sarcoma (KS) is caused by a gammaherpesvirus called Kaposi s sarcoma-associated herpesvirus (KSHV), or human herpesvirus-8 (HHV-8). However, infection with KSHV is not sufficient to cause KS, and HIV infection is an important cofactor. Treatment of HIV with potent antiretroviral therapy can reduce the risk of KS, and can also induce regression in patients with established HIV-KS. One mechanism by which HIV is believed to contribute to KS is through HIV-induced immunodeficiency which leads to a loss of immunologic control of KSHV and/or KS itself. However, other mechanisms may also contribute. Objectives: One primary objective is to assess the effects of the initiation of potent anti-HIV therapy on specific factors possibly linked to the control or pathogenesis of KS, namely serum viral IL-6 and plasma VEGF levels, in patients with KS or at risk for KS by virtue of being infected with KSHV/HHV-8. Another is to assess the effects of anti-HIV therapy on KSHV infection. Secondary objectives are to assess the effects of potent antiretroviral therapy on established KS and other factors related to KS or KSHV infection. Eligibility: The principal eligibility factors are age 13 or above, HIV infection, and either KS or infection with KSHV. Exclusion factors include KS that requires specific therapy, recent corticosteroid therapy, recent cytokine therapy, or opportunistic infections requiring therapy. Design: Patients will be treated with potent antiretroviral therapy. For patients with established KS, the effects of the therapy on the KS will be monitored. In addition, a variety of factors related to KS, HIV infection, therapy, or KSHV infection will be monitored. These include the HIV viral load, KSHV secretion in saliva, the CD4 count, serum VEGF levels, and serum IL-6 levels.
The purpose of this study is to test the effectiveness of SU5416 in patients with AIDS-related Kaposi's sarcoma (KS).
RATIONALE: SU5416 may stop the growth of Kaposi's sarcoma by stopping blood flow to the tumor. PURPOSE: Phase II trial to study the effectiveness of SU5416 in treating patients who have AIDS-related Kaposi's sarcoma.
RATIONALE: SU5416 may stop the growth of Kaposi's sarcoma by stopping blood flow to the tumor. PURPOSE: Phase I trial to study the effectiveness of SU5416 in treating patients who have AIDS-related Kaposi's sarcoma.
Randomized phase III trial to compare the effectiveness of paclitaxel with that of doxorubicin in treating patients who have advanced AIDS-related Kaposi's sarcoma. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. It is not yet known whether paclitaxel is more effective than doxorubicin in treating patients with advanced AIDS-related Kaposi's sarcoma
The rationale for conducting this study lies in the premise that if indeed the reason for a limited response of Kaposi's sarcoma lesions and other advanced malignancies to chemotherapy is attributable to a high expression of P-glycoprotein, then, by inhibiting this pump, tumor kill would be enhanced and response rates as well as duration of responses would also increase. Doxil is chosen since recent studies have shown that it is superior to combination chemotherapy with ABV or BV. Doxil is also known to be active in other malignancies such as breast and ovarian cancer (34,35). PSC 833 is chosen since it has been found to reverse P-gp in vitro and in vivo, is non-immunosuppressive, and has been shown in recent Phase 1 studies to be well tolerated. There are yet no human studies reported on Doxil pharmacokinetics when combined with MDR modulators. Preclinical data shows that pharmacokinetics of Doxil, unlike free doxorubicin, is minimally affected by the addition of PSC 833 (36). Enhanced tumor toxicity was observed when PSC 833 was combined with Doxil. Since doxorubicin, the active agent in Doxil, is metabolized by the same cytochrome P450, interactions between these 2 agents may have very significant clinical implications. The purpose of this study is to assess the toxicity and determine the maximum tolerated dose of Doxil when combined with PSC 833 in the treatment of AIDS-KS and other advanced malignancies.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. PURPOSE: Phase II trial to study the effectiveness of paclitaxel in treating patients with AIDS-related Kaposi's sarcoma.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. It is not yet known whether doxorubicin is more effective than daunorubicin for AIDS-related Kaposi's sarcoma. PURPOSE: Randomized double-blinded phase III trial to determine if doxorubicin is more effective than daunorubicin in treating patients who have AIDS-related Kaposi's sarcoma.
The purpose of this study is to see if it is safe and effective to use IM862 to treat Kaposi's sarcoma (KS) in AIDS patients.