Vaccines Treatment Options in California

The purpose of this study was to evaluate the optimal vaccination schedule for a Quadrivalent Meningococcal Polysaccharide (A, C, Y and W-135) Tetanus Protein Conjugate Vaccine (MenACYW Conjugate vaccine) in order to provide an effective protein conjugate quadrivalent meningococcal vaccine in the population with the highest incidence of disease. Objectives: * To describe the safety profile of MenACYW Conjugate vaccine administered at 5 different schedules and concomitantly with routine pediatric vaccinations. * To describe the immunogenicity profile of MenACYW Conjugate vaccine administered at 5 different schedules and concomitantly with routine pediatric vaccinations. * To describe the immunogenicity profiles of selected licensed pediatric vaccines (Pentacel, Prevnar, M-M-RII, and Varivax) when administered either concomitantly with or without MenACYW Conjugate vaccine. Read Less

The aim of this study was to evaluate the administration of CYD dengue vaccine serotypes (1, 2, 3 and 4) following a compressed schedule in 3 different populations. Primary Objectives: * To describe the humoral immune response to each of the 4 parental dengue virus serotypes at baseline and 28 days after CYD dengue vaccine Dose 3 in Group 1 (Month \[M\] 13) and Group 2 (M07), irrespective of whether or not Yellow Fever (YF) vaccine has been previously administered. * To describe the persistence of the humoral immune response to each of the 4 parental dengue virus serotypes 6 months after CYD dengue vaccine Dose 3 in Group 1 (M18) and Group 2 (M12), irrespective of whether or not YF vaccine has been previously administered. Secondary Objective: * To describe the humoral immune response to each of the 4 parental dengue virus serotypes at baseline and 28 days after CYD dengue vaccine Dose 1 and Dose 2 in Groups 1 and 2, irrespective of whether or not YF vaccine has been previously administered. * To describe the humoral immune response to each of the 4 parental dengue virus serotypes at baseline and 28 days after CYD dengue Dose 1 in the combined YF-participants in Group 1 (N=60) and Group 2 (N=60), and in Group 3 (N=120). * To describe by FV status at baseline the humoral immune response to each of the 4 parental dengue virus serotypes at baseline and 28 days after each injection of CYD dengue vaccine in Groups 1, 2, and 3. * To describe the safety profile after each injection of CYD dengue vaccine and/or YF vaccine. Read Less

The aim of the study was to describe the safety and immunogenicity of a 0.5-mL dose (15 μg hemagglutinin \[HA\] per strain) of Fluzone Quadrivalent vaccine in children 6 to \<36 months of age. Primary objective: * To compare the rate of any fever (temperature ≥100.4 degrees Fahrenheit \[38.0 degrees Celsius) following a 0.5-mL dose of Fluzone Quadrivalent vaccine to that following a 0.25-mL dose of Fluzone Quadrivalent vaccine during the 7 days after either vaccination (Dose 1 and Dose 2 combined) in participants 6 to \< 36 months of age. Secondary objective: * To compare antibody responses induced by a 0.5-mL dose of Fluzone Quadrivalent vaccine to those induced by a 0.25-mL dose of Fluzone Quadrivalent vaccine as assessed by geometric mean titer (GMT) ratios and seroconversion rate differences after the final vaccination in participants 6 to \< 36 months of age. Other objectives: * To describe the safety of 2 different dose levels of the 2016-2017 formulation of Fluzone Quadrivalent vaccine in participants 6 to \< 36 months of age. * To describe the immunogenicity of 2 different dose levels of the 2016-2017 formulation of Fluzone Quadrivalent vaccine in participants 6 months to \< 36 months of age. * To submit available sera from approximately 30 participants to the Center for Biologics Evaluation and Research for further analysis by the World Health Organization, the Centers for Disease Control and Prevention, and the FDA to support formulation recommendations for subsequent influenza vaccines. Read Less

This was a dose and formulation ranging study to assess the safety and immunogenicity of SP0173 in healthy adolescents, adults, and older adults in the United States (US). Primary Objective * To describe the safety profile of each SP0173 investigational formulation. Observational Objective: * To describe the immunogenicity of each SP0173 investigational formulation. Read Less

Despite their established benefits as public measures, vaccines continue to be treated with suspicion by many people, in the US and other parts of the world (Larson et al. 2014; Olive et al. 2018; Lazarus et al. 2020). Since the success of vaccines depends on their high uptake level (Anderson and May, 1985; Fine et al. 2011; Fontanet and Cauchemez, 2020), identifying factors that influence low trust and decision-making in relation to vaccines is essential in order to combat diseases such as the novel Coronavirus (COVID-19). The investigators study factors that could potentially influence public's trust in COVID-19 vaccines through a large-scale online field experiment. The investigators conduct an online survey of 32,400 subjects in nine countries (USA, Brazil, Mexico, China, India, Indonesia, Russia, Germany, and UK). The investigators study how willingness to receive the COVID-19 vaccine is affected by (1) the "novelty" of the vaccine technology (conventional vs. RNA vaccines), and (2) the adoption rate of the new vaccine in the country. That is - the impact of controversial science and the force of conformity on the rates of adoption. The latter will also allow us to calculate the "tipping point" adoption rate for each country that will allow the country to achieve herd immunity from COVID-19. The investigators have four hypotheses, below. H1 (Conformity): People are more willing to receive a vaccine as the cumulative adoption rate in their community increases. H2 (Novelty): People are less willing to get a COVID-19 vaccine that uses the new RNA technology, compared to a conventional vaccine H3 (Interaction between H1 and H2): As the cumulative adoption rate in a community increases, the difference between people's willingness to adopt conventional rather than RNA vaccines decreases. H4 (Tipping Point): Each country will have a different "tipping point". This is the cumulative adoption rate after which unvaccinated people are significantly more willing to get the vaccine. Countries that have a higher "honesty index" will have the tipping point appear at a lower cumulative adoption rate. Please note that this study is not a clinical trial. This study is a randomized controlled trial in the form of an online survey. Read Less

INVESTED will test the hypothesis that high dose trivalent influenza vaccine will reduce cardiopulmonary events to a greater extent than standard dose quadrivalent influenza vaccine in high-risk cardiovascular patients with a recent history of myocardial infarction or heart failure. The trial will enroll 9300 participants over one Vanguard (pilot) season and three additional influenza seasons. The primary endpoint will be a composite of all-cause mortality or cardiopulmonary hospitalization. Read Less

HIV vaccines may help the immune systems of HIV infected patients better control the virus. The goal of this study is to determine whether patients on anti-HIV medications can stop taking those medications if they receive an HIV vaccine. While taking anti-HIV medications, participants will receive either an HIV vaccine or a placebo. Participants will then stop taking their anti-HIV medications and the study will compare the viral loads of participants who received the vaccine with the viral loads of participants who received the placebo. Primary study hypotheses: 1)The Week 12 and Week 16 post-ART interruption geometric mean HIV-1 RNA levels will be lower among participants who had received MRK Ad5 vaccine prior to ART interruption than among participants who received placebo; 2) the time averaged area under the curve of the log10 HIV-1 RNA copies/ml versus day function in the 16 week post-ART interruption step will be lower among participants who received the MRK Ad5 vaccine prior to ART interruption than among participants who receive placebo. Read Less

Men who have sex with men (MSM) have an increased risk of developing anal human papillomavirus (HPV) infections, which can be a risk factor for anal cancer. HIV-infected women are also at risk of anal cancer. This study will evaluate the effectiveness of the Food and Drug Administration (FDA)-approved quadrivalent HPV vaccine, Gardasil, at preventing anal HPV infection in HIV-infected MSM and HIV-infected women. Read Less

The purpose of this study is to determine if 2 doses of Pneumococcal Conjugate Vaccine (PCV) followed by 1 dose of Pneumococcal Polysaccharide Vaccine (PPV) in HIV-infected children on anti-HIV therapy is helpful and safe in fighting pneumococcal infections in this group of children. This study will also look at the protection provided by childhood vaccination against measles, pertussis, and hepatitis B virus. Pneumococcal infections are the most common AIDS-related infection in HIV-infected children. PCV may help reduce the chances of HIV-infected children getting pneumococcal infections. This study will look at whether pneumococcal vaccines are safe and effective in HIV-infected children receiving HAART. It will look at whether HIV-infected children are protected by childhood vaccines received previously and if more doses are safe and improve protection. Read Less

The purpose of this study is to determine immune system function following vaccination in HIV-infected children currently taking anti-HIV drugs. To test the effectiveness of prior vaccination, patients in this study will receive booster shots of one of two pneumococcal vaccines, a hepatitis B vaccine, and a measles vaccine. Read Less

The purpose of this study is to compare two flu vaccines to determine their safety and ability to stimulate an immune response in HIV infected children and adolescents. This study will also determine how often and how long people who receive a vaccine are able to spread flu vaccine virus to other people. Read Less

To determine the frequency of delayed-type hypersensitivity (DTH) reactions in HIV-positive patients to two doses of two envelope glycoprotein antigens prepared differently. To determine whether patients who have previously demonstrated a DTH response to intradermal MGStage HIV-1 gp160 IIIB baculovirus (MicroGeneSys) have a reproducible response to a repeat injection of gp160 and whether there is cross-reactivity to intradermal HIV-1 rgp160 IIIB vero cell expressed (Immuno-AG). PER 4/5/95 AMENDMENT: To also determine whether patients who respond to HIV-1 rgp160 IIIB baculovirus (MicroGeneSys) have cross-reactivity to intradermal skin tests of HIV-1 rgp160 MN (Immuno-AG). Previous studies in individuals immunized with gp160 suggest that a skin test response in immunized patients can be used as a surrogate marker for new proliferative and cytotoxic responses induced by vaccination. Read Less