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Discover 17,868 clinical trials near Massachusetts. Find research studies in your area.
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Showing 17821-17840 of 17,868 trials
NCT00000780
PRIMARY: To identify, characterize, and co-enroll HIV-infected adolescents into existing and future ACTG (or other NIH-sponsored) HIV treatment protocols through the systematic and recurrent assessment of eligibility. To assess the ability of adolescents enrolled in ACTG 220 to adhere to ACTG (or other NIH-sponsored) HIV treatment protocols; and to define factors that influence the adolescent's ability to enter or adhere to study protocols. SECONDARY: To describe the nature, stage, and progression of HIV infection in adolescents. Little is known about HIV-infected adolescents as a group and, as a result, small numbers of them are currently enrolled in ACTG drug studies. Creative approaches are needed to encourage enrollment of HIV-infected adolescents whose socio-demographic profile has made access to NIH-sponsored research unlikely.
NCT00002379
To evaluate the safety and tolerance of adefovir dipivoxil and indinavir administered orally in combination with zidovudine, lamivudine, or stavudine in HIV-infected patients with CD4 cell counts \>= 100 cells/mm3 and an HIV-1 RNA baseline copy number \>= 5000 copies/ml. To determine the proportion of patients whose plasma HIV-1 RNA level falls below the level of detection (500 copies/ml) by 20 weeks of study therapy and the average reduction in HIV-1 RNA from baseline through study week 20. To evaluate the durability of the antiviral response through 48 weeks of study in patients who continue on study therapy after week 24.
NCT00002374
To examine the efficacy of saquinavir SGC (soft gel capsules) in combination with other antiretrovirals in HIV-1 infected patients currently treated with saquinavir HGC (hard gel capsules) measured by the absolute change in plasma HIV-1 RNA during the 24 weeks of study treatment.
NCT00002229
The purpose of this study is to see if it is safe and effective to give saquinavir (as a soft gel capsule taken by mouth) along with 2 other anti-HIV drugs to HIV-infected patients.
NCT00055510
This research study is intended to evaluate the safety and effectiveness of 3 different doses of BO-653, an investigational inhibitor of LDL cholesterol oxidation, when given orally twice a day compared to placebo (an inactive substance) in preventing restenosis (closure of vessel) within six months after stent implantation. Patients must be enrolled into this study within 24 hours after the stenting procedure. Additionally, over a 1- to 9-month post-stent period, the study will compare the safety and effectiveness of BO-653 versus placebo for measures of coronary artery vessel size by quantitative coronary angiography, major adverse cardiac events, and effects on the oxidative status of plasma lipids and other plasma components.
NCT00002243
The purpose of this study is to test the safety and effectiveness of a new non-nucleoside reverse transcriptase inhibitor (NNRTI), (+)-calanolide A, in HIV-positive patients who have never received anti-HIV treatment.
NCT00002314
To study the effects of Ro 24-7429 on tumor growth in patients with HIV-related Kaposi's sarcoma. To study the safety and tolerance, effects on HIV replication, and immunologic effects of Ro 24-7429 in this patient population. To explore relationships between exposure to Ro 24-7429 and its metabolites with its antitumor and antiviral activities and drug toxicity.
NCT00002388
The purpose of this study is to see if it is safe to give 1592U89 to HIV-infected patients. This study also examines the effect 1592U89 has on plasma viral load (the level of HIV in the blood).
NCT00002368
To evaluate the tolerance, safety, and effectiveness of Viramune in preventing clinical AIDS progression events or death when used in combination with Lamivudine and background nucleoside therapy.
NCT00052156
This is a Phase III study in patients with melanoma that has spread to the lymph nodes and/or a distant organ, and who have had all of their cancer surgically removed. The purpose of this study is to evaluate the ability of the CancerVax™ vaccine to prevent or slow the recurrence of melanoma.
NCT00064597
This purpose of this study is to develop noninvasive methods of prenatal diagnosis. Fetal cells can be found in maternal blood. This study is designed to isolate these fetal cells from a sample of the pregnant woman's blood and use those cells to test for fetal chromosome abnormalities.
NCT00011895
The purpose of this study is to determine the effect of treatment with Trizivir (TZV) plus efavirenz (EFV) or TZV alone on viral load (level of HIV in the blood).
NCT00002361
The purpose of this study is to see if it is safe and effective to give an anti-HIV drug combination containing indinavir and ritonavir to HIV-positive patients who have failed previous treatment with protease inhibitors.
NCT00069511
This is a multi-center study. Neither the study subjects nor the physicians will know what treatment an individual subject is receiving. Subjects will be randomly assigned (like flipping a coin) to one of five treatment groups. The treatment groups include four different dosing groups of active study drug and one group of subjects who will receive placebo. A 12 week follow up period occurs after the 12 weeks of dosing. The study endpoint is a reduction in Hepatitis C viral load.
NCT00002437
To determine whether cidofovir (HPMPC) therapy administered by intravenous infusion can extend the time to progression of peripheral cytomegalovirus (CMV) retinitis in AIDS patients. To evaluate the safety and tolerance of HPMPC therapy when administered by intravenous infusion in AIDS patients with CMV retinitis that is not immediately sight-threatening. To evaluate the virologic effects of intravenous HPMPC therapy on CMV shedding in urine, blood, and/or semen. To evaluate the impact of HPMPC therapy on visual acuity.
NCT00002235
Indinavir is usually taken three times a day. The purpose of this study is to see if it is safe and effective to take indinavir only twice a day plus nelfinavir (also taken twice a day) and efavirenz (taken once a day).
NCT00002419
The purpose of this study is to see if it is safe and effective to give adefovir dipivoxil plus abacavir (ABC) plus efavirenz (EFV) plus amprenavir (APV) to HIV-infected patients who have failed to respond to previous treatment with protease inhibitors (PIs).
NCT00002234
The purpose of this study is to see if it is safe and effective to give HIV-infected patients a new combination of anti-HIV drugs taken once daily.
NCT00034333
MTC-DOX is Doxorubicin or DOX, a chemotherapy drug, that is adsorbed, or made to "stick", to magnetic beads (MTCs). MTCs are tiny, microscopic particles of iron and carbon. When DOX is added to MTCs, DOX attaches to the carbon part of the MTCs. MTC-DOX is directed to and deposited in the area of a tumor, where it is thought that it then "leaks" through the blood vessel walls. Once in the surrounding tissues, it is thought that Doxorubicin becomes "free from" the magnetic beads and will then be able to act against the tumor cells. The iron component of the particle has magnetic properties, making it possible to direct MTC-DOX to specific tumor sites in the liver by placing a magnet on the body surface. It is hoped that MTC-DOX used with the magnet may target the chemotherapy directly to liver tumors and provide a treatment to patients with liver cancer. To be sure of the effect of MTC-DOX on liver cancer, it will be compared to the effect of Doxorubicin given through the vein. The study treatments will be administered every three weeks, (which is considered a study treatment cycle), until you complete six treatment cycles, the tumor grows, disappears, or you experience a side effect, which may cause you to leave the study. Follow-up visits will occur on Days 3, 10, and 21 following treatment in the first cycle and Days 7 and 21 for the remaining cycles, and also 60 days after you receive your last treatment cycle. Therefore, the purpose of this Phase 2/3 study is to evaluate safety, tolerance, and efficacy (survival time) of an MTC-DOX dosing strategy where the DOX dose is determined by tumor size
NCT00044135
The purpose of the study is to evaluate the safety and effectiveness of 12 weeks of treatment with clevudine, at one of three doses, in patients chronically infected with hepatitis B virus.
