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Find 315 clinical trials for hiv/aids near Philadelphia, Pennsylvania. Connect with research centers in your area.
Showing 221-240 of 315 trials
NCT00005915
The purpose of this study is to compare 2 treatment plans to try to increase the effects of anti-HIV drugs in patients who are resistant to the drug effects. Sometimes the increase in a patient's viral load (the level of HIV in the blood) can be slowed or stopped by taking anti-HIV drugs. This does not always happen. Sometimes anti-HIV drugs work at first but then stop working. When most of the usual anti-HIV drugs no longer seem to work, the virus is called multidrug-resistant (MDR). This study will compare 2 treatment plans to try to increase the effects of anti-HIV drugs in patients with MDR virus.
NCT00001082
To evaluate the safety and efficacy of adefovir dipivoxil in prolonging survival of patients with advanced HIV disease. In CMV prophylaxis substudy: To evaluate the efficacy of adefovir dipivoxil in preventing the development of CMV end-organ disease in patients with advanced HIV coinfected with CMV. The optimal treatment for HIV infection and the prevention of CMV disease has not been identified. Currently available antiretroviral therapies are hampered by both significant toxicities and the development of resistance. In addition, agents for preventing CMV disease, such as oral ganciclovir, are complicated by poor bioavailability and decreased compliance secondary to toxicities. Moreover, discordant results have been reported regarding the effectiveness of oral ganciclovir for preventing CMV disease. There is a need for newer agents with anti-HIV and anti-herpesvirus activity that have good pharmacokinetic and safety profiles and that will be well tolerated by patients. Adefovir dipivoxil is an oral pro-drug of PMEA, a nucleoside analog with activity against a broad spectrum of retroviruses and herpesviruses, including important human pathogens, such as HIV-1, HIV-2 and CMV. Due to its anti-HIV and anti-herpesvirus activity, adefovir dipivoxil may be able to decrease the incidence of opportunistic herpesvirus infections and prolong survival in patients with advanced HIV infection.
NCT00000925
The purpose of this study is to determine whether a high-quality protein food supplement will help HIV-positive patients maintain, and possibly gain, muscle mass. Many HIV-positive patients lose weight that they are then unable to regain. This may be because patients are not eating enough protein or are not eating the right kinds of protein. The protein eaten in foods (such as meat, eggs, or beans) may not be able to make up for the amount of protein lost due to HIV infection. This study gives patients high-quality protein food supplements to help them maintain and/or gain weight.
NCT00001110
The purpose of this study is to see: (1) how the amount of HIV in the lungs compares to that in the blood; (2) if HAART reduces the amount of HIV in the lungs; and (3) if HAART reduces lung inflammation in HIV-infected patients. Lung-cell inflammation in HIV-infected patients is probably caused by HIV infection of these cells. The amount of inflammation may correspond to the amount of HIV (viral load) in the lungs (i.e., mild inflammation indicates a low amount of HIV; severe inflammation indicates a high amount of HIV). HAART is used to decrease the amount of HIV in the body. If HAART is able to decrease viral load in the lungs, it should also be able to decrease lung-cell inflammation in these patients.
NCT00073424
Taking anti-HIV medication consistently and properly is a critical issue for patients with HIV. Drug regimens are complex; when regimens are not taken properly, HIV can become resistant to the drugs. Taking anti-HIV medication properly leads to improved health. Children and adolescents with HIV face unique challenges to taking HIV medication properly. This study will look at the relationship between how children cope with the responsibility for taking medication and the child's language, memory, attention, behavior, and academic skills. This study is open to children and adolescents who are currently enrolled in the PACTG 219C study (Long-Term Effects of HIV Exposure and Infection in Children).
NCT00043888
Antiretroviral Therapy (ART) naive subjects will be enrolled in this clinical research study to test the safety and tolerability of fosamprenavir with or without ritonavir in combination TRIZIVIR and COMBIVIR. Subjects will receive 24 weeks of therapy.
NCT00037076
The purpose of this study is to find out how many children who are infected with HIV are also infected with hepatitis C virus (HCV). HCV infection is a major health concern. HIV-infected adults who are co-infected with HCV appear to have more rapid HIV disease progression. There is little data on how widespread HCV is among children who are HIV-infected. Information from this study will help determine the need for future HCV studies. This study also will obtain blood samples for future testing for other hepatitis viruses such as hepatitis G virus (HGV or GB virus C).
NCT00013520
The purpose of this study is to compare the effectiveness, safety, and tolerability of 3 anti-HIV combination treatments that do not use protease inhibitors (PIs). The current rule for starting treatment of HIV infection is to combine members from different classes of anti-HIV drugs, such as 2 nucleoside reverse transcriptase inhibitors (NRTIs) and either a PI or a nonnucleoside reverse transcriptase inhibitor (NNRTI). However, these combinations can be complicated and difficult to take, can cause a number of side effects, and may become ineffective. Combinations that are simpler, better tolerated, and more effective are needed. Because PIs can cause long-term side effects and because HIV can become resistant to many of them at the same time, anti-HIV combination treatments that do not use PIs are being tested.
NCT00440947
This study was designed to test the efficacy, safety, tolerability and durability of the antiviral response between atazanavir (ATV) + ritonavir (/r) + abacavir/lamivudine(ABC/3TC) Fixed dose combination (FDC) each administered once daily (QD) for 36 weeks followed by randomization to either a simplification regimen of ATV or continuation of ATV +/r for an additional 48 weeks, each in combination with ABC/3TC in antiretroviral (ART)-naive, HIV-1 infected, HLA-B\*5701 negative subjects. All subjects who complete the 84-week study will be eligible to enter the treatment extension phase and continue for an additional 60 weeks. The purpose of this extension is to obtain longer term treatment data in subjects who have completed the 84-week study.
NCT00001039
To assess the feasibility of using culture and staining techniques to quantify tissue Mycobacterium avium Complex (MAC) burden in bone marrow. To correlate and compare changes in MAC bone marrow burden with quantitative MAC blood culture results at baseline and after 4 and 8 weeks of treatment. MAC is easiest to detect in the blood, although doctors generally believe that MAC in blood is just "spill-over" from infection of other parts of the body. Traditionally, studies of potential treatments for MAC focus only on MAC changes in the blood. This study compares MAC changes in blood to those in bone marrow, which is another tissue where MAC is often found.
NCT00000784
To examine, in patients enrolled in protocols CPCRA 006 and/or 007, the relationship between patient compliance and demographic, psychosocial, and lifestyle characteristics and Health Belief Model premises (i.e., patient's perception of susceptibility to and severity of disease and perception of benefits and barriers to a particular treatment) in order to design more effective intervention protocols. Patient noncompliance can influence the statistical findings of a clinical study, possibly resulting in an incorrect assessment of the effects of the investigational therapeutic agent. Since the special populations targeted by the CPCRA for inclusion in HIV-related clinical research do not typify those traditionally included in clinical trials or compliance research, it is necessary to elucidate and examine the special needs of these populations and to determine the extent to which these needs manifest themselves as potential barriers to protocol compliance.
NCT00035893
This is an open-label, prospective, randomized, controlled study of the safety and efficacy including clinical, immunologic, and virologic assessments of adding Ampligen to a Strategic Therapeutic Intervention (STI) of HAART in patients with plasma HIV RNA \< 50 copies/ml (PCR) and CD4 levels \> 400.
NCT00524368
The purpose of this study is to test if being treated with darunavir/ritonavir (DRV/rtv) 800/100 mg daily is as effective as being treated with DRV/rtv 600/100 mg twice daily, in early antiretroviral (ARV)-experienced patients when given along with selected optimized background regimen (OBR).
NCT00004735
The purpose of this study is to determine the number of newly formed CD4 cells in children who have taken anti-HIV drugs. The study will also evaluate the effectiveness of the new CD4 cells in producing an immune response to hepatitis A and tetanus toxoid vaccination. Study hypothesis: 1) Immunologic reconstitution of individuals who have less than 15% CD4 cells may or may not be associated with functional activity. 2) The functional immunologic responses to recall and newly experienced antigens may be different. 3) The functional responses to antigens delivered in vaccine format may be a function of CD4 level, viral load, or both.
NCT01077960
In Serono Study 24380, the antecedent protocol to Study 25373, patients were randomly assigned in a 3.0-to-1.0 ratio to Groups A and B. All patients in Group A received recombinant human growth hormone (Serostim®) 4 mg daily (the "induction" phase) for the first 12 weeks, and then were re-randomized to receive either placebo or Serostim 2 mg on alternate days (roughly equivalent to 1 mg daily) during Weeks 12-36 (the "maintenance" phase). All patients in Group B initially received placebo from baseline to Week 24, and then received Serostim® 4 mg daily from Weeks 24 to 36 (Grunfeld, 2007). In the follow-up Study 25373, any subject who was enrolled in Serono Study 24380 and was assigned to Group A, who fully completed all study visits without a major protocol violation, was eligible to enroll to receive re-treatment with Serostim at a dose of 4 mg daily for 12 weeks. During study 25373, safety was monitored by recording of adverse events and measurement of urinalysis and laboratory blood tests to assess fasting glucose, fasting insulin, and routine biochemistry and hematology parameters. At Week 12 or at the time of study termination, subjects underwent re-assessment of body composition via anthropometry measurements and dual photon absorptiometry (DXA) scanning. In addition, at study termination, measurements of insulin-like growth factor I (IGF-I), insulin-like growth binding protein 3 (IGFBP-3), fasting lipid profile, and oral glucose tolerance testing were obtained.
NCT00310843
Attempt to identify genetic polymorphisms in interrogated pathways which may be associated with symptomatic hepatotoxicity or severe cutaneous toxicity observed in case patients within the first 8 weeks of nevirapine therapy.
NCT00164372
The purpose of this study is to test whether a six-session behavioral intervention for HIV and HCV seronegative injection drug users is effective in reducing sexual and injection risk behaviors that could lead to primary HIV and HCV infection.
NCT00000674
To collect information on the effectiveness and toxicity of clindamycin plus pyrimethamine and leucovorin calcium for the treatment of acute toxoplasmic encephalitis in adult patients with AIDS. Toxoplasmic encephalitis (encephalitis caused by Toxoplasma gondii) is the most frequent cause of focal central nervous system infection in patients with AIDS. If untreated, the encephalitis is fatal. At present, it is standard practice to give a combination of pyrimethamine and sulfadiazine to treat toxoplasmic encephalitis. The high frequency of sulfonamide-induced toxicity in AIDS patients often makes completion of a full course of therapy difficult. There is some information that high doses of parenteral (such as by injection) clindamycin used with pyrimethamine may be as effective as pyrimethamine plus sulfadiazine in the management of the acute phase of toxoplasmic encephalitis in patients with AIDS. Administration of parenteral clindamycin for prolonged periods of time, however, is costly, requires hospitalization, and is inconvenient for the patient. There is some indication that treatment of AIDS patients with acute toxoplasmic encephalitis with oral clindamycin may be effective. Leucovorin calcium is useful in preventing pyrimethamine-associated bone marrow toxicity.
NCT00414518
The purpose of this study is to determine the safety and effectiveness of an anti-HIV drug regimen followed by treatment interruption in people recently infected with HIV. This study will also compare the effects of a treatment regimen including treatment interruption with a treatment plan based on clinical indicators.
NCT00833482
This study assesses the effects of voriconazole, 200 mg, administered twice daily (BID), on the steady-state pharmacokinetics of atazanavir administered as atazanavir/ritonavir, 300/100 mg once daily (QD), in healthy participants with functional CYP2C19 alleles. The study also reviews the effects of atazanavir/ritonavir, 300/100 mg QD, on the pharmacokinetics of voriconazole, 200 mg, BID in healthy participants with functional CYP2C19 alleles.
