18 Clinical Trials for Various Conditions
This research study is about vaginal infections such as bacterial vaginosis, yeast infections, and trichomoniasis. Usually, these infections can be treated with medication, but sometimes they come back after treatment. Researchers want to know if using vaginal suppositories can decrease the risk of vaginal infections. Participants will include 234 women who are sexually active (greater than or equal to 4 episodes of sex with men during the past month), HIV-negative, 18 to 45 years old, with bacterial infection \[vaginosis and/or vulvovaginal candidiasis (VVC) and/or Trichomonas vaginalis\] detected by laboratory testing at a screening visit. Women will receive vaginal suppositories containing drug or inactive ingredients (placebo). Participation in the study will be about 12 months. Study procedures include: urine and blood tests, physical exams, and questionnaires.
To evaluate the safety and tolerability of the Chiron vaccine human immunodeficiency virus (HIV) p24(25 or 50 micrograms)/MF59 in healthy HIV-1 seronegative adults. To evaluate the immunogenicity of the HIV p24(50 micrograms)/MF59 vaccine.
This is a CCTG sponsored project to determine if those recently screened for HIV would accept assistance to be linked into appropriate health services. After receiving their HIV results, high-risk individuals who test negative will have an option to be linked into a study that offers them Pre-exposure Prophylaxis (PrEP), and individuals who test positive will have an option to be linked into care. If they accept, tested individuals will be in contact with an ALERT specialist that will help facilitate their linkage. The study's primary analysis will analyze how many HIV screened individuals accept the ALERT specialist assistance.
Hypothesis 1: Ritonavir-based regimens increase triglycerides and VLDL by both increasing VLDL production and decreasing VLDL clearance. Specific Aim 1A: To quantify the effect of ritonavir on VLDL production and clearance using stable isotope turnover and other clearance methods. Specific Aim 1B: To determine the composition of the triglyceride rich particles. Protocol 1: The effects of ritonavir-based regimens on VLDL production, VLDL clearance and triglyceride-rich lipoprotein composition in healthy normal volunteers. HIV-seronegative volunteers will be studied before and at the end of four weeks of taking ritonavir, lopinavir/ritonavir or atazanavir/ritonavir. Hypothesis 2: NNRTI drugs do not increase HDL by increasing apo AI production, but rather by decreasing apo AI clearance, prolonging time in circulation. Specific Aim 2A: To determine the composition of HDL before and after NNRTI and assess its function. Specific Aim 2B: To quantify the effect of NNRTI on apo AI production and clearance using stable isotopes. Specific Aim 2C: To determine if the NNRTI induced increase in HDL is accompanied by improvement in flow mediated vasodilation and circulating markers of endothelial function Protocol 2A: The effects of efavirenz on HDL composition, HDL function, apo AI production, apo AI clearance, flow mediated vasodilation and circulating markers of endothelial dysfunction in healthy normal volunteers. HIV-seronegative volunteers will be studied before and at the end of six weeks of taking efavirenz. Protocol 2B: The effects of starting an efavirenz-based regimen on HDL composition, HDL function, apo AI production, apo AI clearance, flow mediated vasodilation and circulating markers of endothelial dysfunction in patients with HIV infection. HIV-infected patients whose care providers have prescribed an efavirenz-based regimen will be studied before and after six weeks of starting efavirenz. Hypothesis 3: Ritonavir-based PI regimens impair insulin secretion. Specific Aim 3: To determine which ritonavir-based PI regimens alter insulin secretion. Protocol 3: The effects of ritonavir-based regimens on insulin secretion in healthy normal volunteers. HIV-seronegative volunteers will be studied before and at the end of four weeks of taking ritonavir, lopinavir/ritonavir or atazanavir/ritonavir.
The purpose of this study is to evaluate the safety and pharmacokinetics of PC-1005 gel when used as a rectal microbicide in HIV-uninfected men and women (cis or transgender) with a history of consensual receptive anal intercourse.
The purpose of this study is to evaluate the pharmacokinetics of dapivirine gel administered rectally to HIV-1 seronegative adults.
The purpose of this study is to evaluate the safety and pharmacokinetics (PK) of dapivirine gel (0.05%) administered rectally to HIV-1 seronegative adults.
The investigator believes simeprevir concentrations are unchanged when administered in combination with dolutegravir relative to administration alone. The investigator believes dolutegravir concentrations are unchanged when administered in combination with simeprevir. Additionally, the investigator believes simeprevir and dolutegravir are safe when administered alone and in combination.
The purpose of the study is to evaluate the safety, acceptability, and PK/PD profile of maraviroc gel following rectal and vaginal administration. The study also includes oral exposure to maraviroc.
The purpose of this study is to evaluate the safety, acceptability, pharmacokinetics (what the body does to the medication), and ex vivo (tested outside the body) pharmacodynamics (what the medication does to the body) of TMC278 long acting (slowly effective after initial dosage and maintaining its effects over a long period of time) when administered as an intramuscular (ie, in to the muscle) injection in adult participants who are seronegative for human immunodeficiency virus type 1 (HIV-1).
To evaluate the safety and immunogenicity of a combination of microparticulate monovalent HIV-1 MN synthetic branched peptide candidate vaccine for oral administration and monovalent HIV-1 MN synthetic branched peptide vaccine in alum for intramuscular administration in intermediate or higher risk HIV-negative volunteers.
To evaluate the safety and immunogenicity of HIV p17/p24:Ty-VLP (virus-like particles) vaccine in uninfected volunteers. Specifically, to determine whether the vaccine formulated with and without alum induces CD8+ cytotoxic T lymphocytes ( CTLs ) that may be cross-reactive against multiple HIV-1 stains. Also, to determine whether boosting with the vaccine orally or rectally will help induce mucosal antibody responses. Induction of CD8+ CTL activity is considered a critical property for a candidate vaccine. Additionally, since the majority of HIV-1 infections occur after inoculation of a mucosal surface, it is desirable to induce mucosal immunity as well as systemic immunity. The HIV p17/p24:Ty-VLP vaccine may potentially induce both CTL and mucosal antibody responses against HIV-1.
To evaluate an HIV synthetic lipopeptide candidate vaccine component, P3C541b, at two dose levels, administered subcutaneously (s.c.) in a randomized, double-blind, placebo controlled study.
To evaluate the safety and immunogenicity of a new microparticulate formulation of an HIV-1 MN PND peptide for oral administration in healthy, HIV-1 seronegative adult volunteers at low risk for infection. Vaccine formulations of synthetic peptides adsorbed to alum may not provide other requisite characteristics of an effective HIV vaccine, such as induction of mucosal immunity, production of cytotoxic T cells, and ease of administration. An oral microparticulate vaccine containing a prototype synthetic peptide has been developed. The microparticles can be degraded over time, inducing both secretory and systemic immune responses.
To evaluate, in healthy adult volunteers, the safety and immunogenicity of multivalent HIV-1 peptide immunogen, a formulation of HIV-1 gp120 principal neutralizing domain (PND) branched synthetic peptides from 15 viral strains representative of diverse worldwide isolates. Because there is considerable variation among HIV-1 virus strains from differing geographical locations worldwide, a multivalent peptide vaccine has been constructed to include prevalent and divergent isolates, potentially providing for wide coverage of geographically isolated epidemics.
This is a phase 2, open-label efficacy study of VGX-3100 administered by intramuscular (IM) injection followed by electroporation (EP) in adult men and women who are human immunodeficiency virus (HIV) negative with histologically confirmed anal or anal/peri-anal high-grade squamous intraepithelial lesion (HSIL) associated with human papilloma virus (HPV)-16 and/or HPV-18. Approximately 24 participants will receive at least 3 doses of VGX-3100.
The focus of this study (Engaging Seronegative Youth to Optimize HIV Prevention Continuum) - will be to stop HIV-related risk acts and to encourage youth at high risk for HIV to adopt antiretroviral medications as treatment and prevention (either pre exposure prophylaxis (PrEP) or post exposure prophylaxis) among gay, bisexual and transgender and/or homeless youth with contact with the criminal justice system in the HIV epicenters of Los Angeles and New Orleans. A cohort of 1500 youth at the highest risk of seroconverting over 24 months will be identified. The goal will be to optimize the HIV Prevention Continuum over 24 months. The proposed randomized controlled trial (RCT) aims to compare youth outcomes when randomized to one of four automated and person-mediated social media delivered intervention conditions: 1) Automated Messaging and Monitoring Intervention (AMMI) only (n=900) consisting of daily motivational, instructional, and referral text-messaging (SMS), and brief, weekly SMS monitoring surveys of outcomes; 2) Peer Support through social media plus AMMI (n=200) via private online discussion boards; 3) Coaching plus AMMI (n=200) to provide service linkages, eligibility support, appointment coordination and follow-up, communication with healthcare providers, and brief motivational and strengths-based counseling for linkage and retention to prevention, mental health, and substance abuse services; and, 4) Coaching plus Peer Support and AMMI (n=200).
This study evaluates the feasibility (reach, adoption, safety and implementation) and initial efficacy (higher linkage to care) of the Partner Services Pre-exposure Prophylaxis (PS-PrEP) intervention versus phone based Pre-exposure Prophylaxis (PrEP) treatment at 3 months post randomization among a sample of high risk individuals 18 - 35 years from clinic-based recruitment and internal referrals from social network based projects. The evaluation of the intervention will be used to strengthen routine department of public health services linkage to PrEP care.