Clinical trials: Immunity
Influenza A Subtype H5N1 Infection
Durability and Impact of the Seasonal Influenza Vaccine on H5 Induced B Cell Response
The study is a prospective single site exploratory study to examine the impact of Food and Drug Administration (FDA) approved seasonal flu vaccine on the immune responses of H5N1 vaccine previously received with or without the…
- Trial name
- HIPCVAX-010S (NCT03701061)
- Testing
- Seasonal Influenza Vaccine
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Emory University
Moderate to Severe Asthma
Study to Assess the Effect of Tezepelumab on the Immune Response to Influenza Vaccination in Participants With Asthma
This is a Phase 3b, multicenter, randomized, double-blind, parallel group, placebo-controlled study designed to investigate the potential effect of tezepelumab (210 mg subcutaneous [SC] every 4 weeks [Q4W]) on antibody responses…
- Trial name
- VECTOR (NCT05062759)
- Testing
- Tezepelumab
- Where
- 15 sites in United States
- Volunteers
- 70 people
- Sponsor
- AstraZeneca
Immune Response to Influenza Vaccine, Influenza A Virus Infection
Randomized Study of Immune Response to Licensed Influenza Vaccines in Children and Adolescents
The purpose of this study is to assess the serologic and cell-mediated immune response to licensed live attenuated influenza vaccine (LAIV) and inactivated influenza vaccine (IIV) in children 5-17 years old.
- Conditions
- Immune Response to Influenza Vaccine, Influenza A Virus Infection, Influenza B Virus Infection
- Trial name
- NCT02250274
- Testing
- LAIV, IIV
- Where
- United States
- Volunteers
- 131 people
- Sponsor
- Marshfield Clinic Research Foundation
Pneumococcal Infections
Immunity to Serotype 19A Streptococcus Pneumoniae in Children Vaccinated With PCV10
The aim of the study are to assess the persistence of immunity against vaccine serotypes (VSTs) and vaccine-related serotypes in PCV10 vaccinated children in Finland.
- Trial name
- NCT04912297
- Testing
- 10-valent pneumococcal conjugate vaccine, PCV10
- Where
- Finland
- Volunteers
- 186 people
- Sponsor
- Finnish Institute for Health and Welfare
Japanese Encephalitis, Varicella
Study of Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) in Children Previously Immunized With JE-CV
The aim of the study is to investigate the memory immune response and the yearly persistence of the immunity against Japanese Encephalitis (JE) after vaccination with Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) in…
- Trial name
- NCT01190228
- Testing
- JE-CV Vaccine, Varicella Vaccine
- Where
- Philippines
- Volunteers
- 454 people, healthy volunteers welcome
- Sponsor
- Sanofi Pasteur, a Sanofi Company
Influenza
B-cell Immunity to Influenza (SLVP017)- Year 5, 2013
In this exploratory study, investigators will be looking at immune response differences between age groups and between the two different vaccines given to identical twins and vaccine-naive young adults.
- Trial name
- NCT03020537
- Testing
- Fluzone
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Stanford University
Hepatitis B
Long Term Follow-Up Study 16-20 Years After Hepatitis B Vaccination in Newborns of Mothers Who Were Seropositive for Hepatitis B Envelope Antigen (HBeAg) & Hepatitis B Surface Antigen (HBsAg)
This study is performed to evaluate the persistence of anti-hepatitis B surface antigen (HBs) antibodies up to 16, 17, 18, 19 and 20 years after administration of the first dose of the study vaccine, Engerix-B™.
- Trial name
- NCT00240539
- Testing
- Blood sampling
- Where
- Thailand
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Japanese Encephalitis
Open-label, Randomized Study in a Pediatric Population in a JEV (Japanese Encephalitis Virus)-Endemic Country
This is a randomized, open-label Phase 3 study including children aged >9 months to <17 years and 7 months who have been vaccinated with IXIARO in study IC51-323.
- Trial name
- NCT01296360
- Testing
- IXIARO
- Where
- 3 sites in Philippines
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Valneva Austria GmbH
Pneumonia, Bacterial, Pneumococcal Infections
A Phase 2 Study to Evaluate the Safety, Tolerability, and Immune Response of AFX3772 Vaccine in Healthy Infants
This is a Phase 2 clinical study evaluating AFX3772 in healthy infants for the prevention of pneumococcal disease. The purpose of this study is to determine the safety, tolerability, and immunogenicity of three different…
- Conditions
- Pneumonia, Bacterial, Pneumococcal Infections, Pneumonia, Pneumococcal
- Trial name
- NCT05412030
- Testing
- AFX3772, Prevnar 13, Prevnar 20
- Where
- 52 sites in United States, Puerto Rico
- Volunteers
- 388 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Infections, Meningococcal
Study in Children to Evaluate Non-Inferiority and Persistence up to 5 Years of GSK Bio Meningococcal Vaccine 134612
This study has 2 phases, a vaccination phase and a long-term follow-up phase. In the vaccination phase of this study, the new meningococcal vaccine 134612 will be evaluated in children using Mencevax™ ACWY (in children above 2…
- Trial name
- NCT00427908
- Testing
- GSK Biolgicals' meningococcal vaccine 134612 (Nimenrix), Mencevax™ ACWY, Meningitec™
- Where
- 11 sites in Finland
- Volunteers
- 613 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Healthy
Study to Investigate the Safety and Immunogenicity of a Tetravalent Chimeric Dengue Vaccine in Healthy Volunteers Between the Ages of 1.5 - 45 Years
The purpose of this study is to assess the safety of Takeda's tetravalent dengue vaccine (TDV) (previously DENVax) administered subcutaneously in healthy adults and children.
- Trial name
- NCT01511250
- Testing
- TDV
- Where
- 8 sites in Colombia, Puerto Rico and 2 more
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- Takeda
Vaccine Refusal
Promoting Altruism to Enhance Vaccine Acceptance
Subjects enrolled in this study are eligible for the seasonal influenza vaccine. The purpose of this research study is to figure out if increasing individuals' awareness of the benefits of herd immunity, specifically to the local…
- Trial name
- NCT04568590
- Testing
- educational intervention
- Where
- United States
- Volunteers
- 510 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Meningococcal Immunisation (Healthy Volunteers)
Study to Evaluate the Immune Response After a Booster Dose of a Quadrivalent Meningococcal (MenACYW) Conjugate Vaccine When Administered Alone or Concomitantly With a Licensed Meningococcal Serogroup B Vaccine, in Participants Who Received Primary Quadrivalent Meningococcal Conjugate Vaccine (MCV4)
Primary Objective: To demonstrate the vaccine seroresponse sufficiency of meningococcal serogroups A, C, Y, and W following the administration of a booster dose of meningococcal Polysaccharide (Serogroups A, C, Y and W) Tetanus…
- Trial name
- NCT04084769
- Testing
- Meningococcal polysaccharide (serogroups A, C, Y, and W) tetanus toxoid Conjugate vaccine MenACYW Conjugate vaccine, Meningococcal Group B vaccine (Trumenba®), Meningococcal group B vaccine (Bexsero®)
- Where
- 30 sites in United States, Puerto Rico
- Volunteers
- 570 people, healthy volunteers welcome
- Sponsor
- Sanofi Pasteur, a Sanofi Company
Immunity to Oral Rotavirus Vaccine, Immunity to Oral Polio Vaccine
Zinc and/or Probiotic Supplementation of Rotavirus and Oral Polio Virus Vaccines
Background: Strategies are needed to improve oral rotavirus vaccine (RV), which provides suboptimal protection in developing countries.
- Conditions
- Immunity to Oral Rotavirus Vaccine, Immunity to Oral Polio Vaccine, Shedding of Oral Rotavirus Vaccine
- Trial name
- NCT01616693
- Testing
- Probiotic, Zinc, Rotavirus vaccine
- Where
- India
- Volunteers
- 620 people, healthy volunteers welcome
- Sponsor
- PATH
Prematurity
Effect of Colostrum on Mucosal Immunity in Very Low Birth Weight (VLBWs) Premature Infants
Background: Infection in preterm infants is a common, costly, and devastating problem frequently causing death or sequelae for survivors.
- Trial name
- NCT01776268
- Testing
- Oral priming
- Where
- United States
- Volunteers
- 99 people
- Sponsor
- Vanderbilt University Medical Center
Japanese Encephalitis
Long Term Immunity and Safety Following Vaccination With the JEV IC51 (IXIARO®, JESPECT®) in Pediatric Population In Non Endemic Countries. Uncontrolled, Ph3 FU-Study
The study investigates long-term immunity and safety of IC51 (IXIARO®, JESPECT®) in a pediatric population vaccinated in the parent study IC51-322.
- Trial name
- NCT01246479
- Testing
- Blood draw, IC51 has given in the parent study IC51-322
- Where
- 5 sites in United States, Australia and 1 more
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Valneva Austria GmbH
Influenza, Influenza Immunisation
Development of Childhood Anti-Influenza Immunity
This study is a prospective surveillance of the immune response to seasonal vaccination in healthy children. The study will enroll a total of approximately 220 subjects.
- Trial name
- NCT03673345
- Testing
- Influenza Virus Quadrivalent Inactivated Vaccine
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Kidney Transplantation
A Study to Assess Immune Response in Pediatric Kidney Transplant Recipients Treated With Daclizumab (Zenapax)
This study will assess whether daclizumab impairs the ability of children receiving a kidney transplant to elicit a primary immune response.
- Trial name
- NCT02576145
- Testing
- DT, Daclizumab, KLH
- Where
- 5 sites in United States
- Volunteers
- 11 people
- Sponsor
- Hoffmann-La Roche
Hematopoietic Stem Cell Transplant, Hematologic Malignancy
Influenza Vaccine Post Allogeneic Transplant
Study Design: This is a randomized, single center study to evaluate immune responses to the seasonal influenza vaccine in allogeneic hematopoietic stem cell transplant (HSCT) recipients who receive one vaccine or two vaccine…
- Trial name
- NCT01215981
- Testing
- Influenza vaccine
- Where
- United States
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Masonic Cancer Center, University of Minnesota
HIV Infections, Meningitis
Safety of and Immune Response to a Meningitis Vaccine in HIV-Infected Children and Youth
Bacterial meningitis infection is common in youth 2 to 24 years of age in the United States. This disease can be treated by antibiotics, but mortality rates associated with meningitis of up to 53% have been estimated.
- Trial name
- NCT00459316
- Testing
- Quadrivalent meningococcal conjugate vaccine
- Where
- 37 sites in United States, Puerto Rico
- Volunteers
- 384 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)