Clinical trials: Vaccine Response Impaired
Vaccine Response Impaired, Vaccine Adverse Reaction
Vaccine Observation to Include All Communities for Equitable Science
VOICES is a longitudinal, prospective, observational study that will enroll up to 10,000 subjects of diverse racial backgrounds being administered an emergency use authorized COVID-19 vaccine, for collection and analysis of stool…
- Trial name
- VOICES (NCT04770649)
- Testing
- COVID-19 vaccine
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Persephone Biosciences
Influenza, Human, SARS-CoV-2 Infection
Does Repeat Influenza Vaccination Constrain Influenza Immune Responses and Protection
The objectives of this study are to understand the long-term consequences of repeated annual influenza vaccination among healthcare workers (HCWs) and to use statistical and mathematical modelling to elucidate the immunological…
- Trial name
- NCT05110911
- Testing
- Influenza vaccination: Fluarix Tetra, Vaxigrip Tetra, Fluquadri, Fluad Quad, Afluia Quad, Flucelvax Quad, SARS-CoV-2 vaccination: Comirnaty or Vaxzevria
- Where
- 6 sites in Australia
- Volunteers
- 1,500 people, healthy volunteers welcome
- Sponsor
- University of Melbourne
Vaccine Response Impaired
Antibodies in Repeated Influenza Vaccination (ARIVA) Study
Viruses with high mutation rates, such influenza or HIV, pose a major challenge for vaccine design. The current influenza vaccination strategy of yearly vaccination with adapted strains aims to maximally diversify the antibody…
- Trial name
- ARIVA (NCT04059991)
- Testing
- Influenza Vaccination
- Where
- Switzerland
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University Hospital, Basel, Switzerland
Sarcoidosis, SARS-CoV2 Infection
Immune Response to SARS-CoV-2/COVID-19 Vaccination in Sarcoidosis
People with sarcoidosis, particularly those with significant lung and/or cardiac involvement, who become infected with severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) are likely at increased risk of complications or…
- Conditions
- Sarcoidosis, SARS-CoV2 Infection, Vaccine Response Impaired
- Trial name
- NCT05089565
- Testing
- Assay of (1) the level of anti-spike IgG antibody, and (2) interferon-gamma release in response to SARS-CoV-2 antigen stimulation
- Where
- United States
- Volunteers
- 101 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Aging, Age-Related Immunodeficiency
Vaccination Efficacy With Metformin in Older Adults
With aging the immune system gets weaker. This makes older adults more susceptible to influenza (flu). Vaccinations help to prevent infection from the flu virus, however the immune system of older adults do not respond as well to…
- Conditions
- Aging, Age-Related Immunodeficiency, Vaccine Response Impaired
- Trial name
- VEME (NCT03996538)
- Testing
- Metformin Hydrochloride Extended-Release Tablets, Influenza Vaccine
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- UConn Health
Vaccine Response Impaired, Hepatitis B
Immunogenicity of the Hepatitis B Vaccine
More than five decades have passed since the identification of the etiologic agent of hepatitis B and yet this infection is a challenge for public health worldwide.
- Conditions
- Vaccine Response Impaired, Hepatitis B, Aging
- Trial name
- NCT04540653
- Testing
- Standard vaccination schedule, Reinforced vaccination schedule
- Where
- Brazil
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Universidade Federal de Goias
Vaccine Response Impaired
Antibiotics and Vaccine Immune Responses Study
The goal of this clinical trial is to examine immune responses to the BCG vaccine in healthy adults who have, or who have not, taken antibiotics to deplete their gut bacteria prior to vaccination.
- Trial name
- AVIRS (NCT06148025)
- Testing
- BCG vaccine, Yellow Fever vaccine, Vancomycin Oral Capsule
- Where
- Australia
- Volunteers
- 348 people, healthy volunteers welcome
- Sponsor
- South Australian Health and Medical Research Institute
Aging, Vaccine Response Impaired
Impact of Metformin on Immunity
To determine whether metformin (MET) can improve the immune response to the pneumococcal conjugate vaccine (PCV-13) in older adults.
- Trial name
- NCT03713801
- Testing
- Metformin
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- The University of Texas Health Science Center at San Antonio
Vaccine Response Impaired
Immune-Related Trafficking and Signaling in Human Skin Associated With Low-Power, Infrared Laser Treatment
The purpose of this is that the researcher can use low power Near Infrared laser treatment non-painful and non-damaging dose to changes the skin properties.The researcher can prove that signaling and a significant increase in the…
- Trial name
- NCT02453113
- Testing
- low power laser
- Where
- 2 sites in United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of California, Irvine
Malnutrition, Child, Enteropathy
Study of Environmental Enteropathy and Malnutrition in Pakistan
Environmental Enteropathy (EE) is an acquired sub-clinical inflammatory gut condition in which alterations in intestinal structure, function, and local and systemic immune activation lead to impaired vaccine responses, decreased…
- Conditions
- Malnutrition, Child, Enteropathy, Vaccine Response Impaired, Stunting
- Trial name
- SEEM (NCT03588013)
- Testing
- Nutritional education, Ready to Use Therapeutic Food, Upper gastrointestinal endoscopy with biopsy
- Where
- Pakistan
- Volunteers
- 416 people, healthy volunteers welcome
- Sponsor
- Aga Khan University
Iron Deficiency Anemia, Vaccine Response Impaired
Iron and COVID-19 Vaccine Response
Vaccines often underperform in Africa compared to high-income countries. Why vaccines do not work as well in Africa remains uncertain. Malnutrition likely plays a role.
- Conditions
- Iron Deficiency Anemia, Vaccine Response Impaired, COVID-19 Vaccine, Iron Deficiency Anemia Treatment
- Trial name
- NCT04915820
- Testing
- Ferinject
- Where
- Kenya
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- Jomo Kenyatta University of Agriculture and Technology
Vaccine Response Impaired
Vaccine Hyporesponse in Healthy Elderly Participants (MK-0000-131 AM2)
This study evaluated whether it is possible in healthy elderly participants to generate baseline biomarker-based prediction rules (PdR) for vaccine response (post baseline absolute serum antibody titer) using each of the protocol…
- Trial name
- NCT01119703
- Testing
- Tetanus & Diphtheria booster vaccine (Td), TwinrixTM [Hepatitis A Inactivated & Hepatitis B (Recombinant) Vaccine], Dukoral® Traveler's Diarrhea Vaccine (WC/rBS)
- Volunteers
- 174 people, healthy volunteers welcome
- Sponsor
- Merck Sharp & Dohme LLC
HIV Infections, Hepatitis B
Heplisav-B Revaccination for Hepatitis B Vaccine Nonresponders
The goal of this natural history study is to examine the immune responses to the Heplisav-B vaccine in Veterans living with HIV who were non-responders to prior HBV vaccination.
- Conditions
- HIV Infections, Hepatitis B, Vaccine Response Impaired
- Trial name
- HBR2 (NCT05791851)
- Where
- 2 sites in United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Arsenic--Toxicology, Immunologic Disorders Complicating Pregnancy
Pregnancy, Arsenic and Immune Response
As the global availability of vaccines increases, and reaches areas disproportionately affected by arsenic and malnutrition, resolving questions about potential environmental and biologic barriers to maternal immunization has…
- Conditions
- Arsenic--Toxicology, Immunologic Disorders Complicating Pregnancy, Vaccine Response Impaired, Micronutrient Deficiency
- Trial name
- PAIR (NCT03930017)
- Testing
- Seasonal influenza vaccine - VAXIGRIP TETRA influenza vaccine (quadrivalent, split virion, inactivated)
- Where
- Bangladesh
- Volunteers
- 784 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins Bloomberg School of Public Health
Iron Deficiency Anemia, Vaccine Preventable Disease
Iron and Vaccine Response
Vaccines often underperform in Africa compared to high-income countries. Why vaccines do not work as well in Africa remains uncertain. Malnutrition likely plays a role.
- Conditions
- Iron Deficiency Anemia, Vaccine Preventable Disease, Vaccine Response Impaired, Iron Deficiency Anemia Treatment
- Trial name
- NCT04912661
- Testing
- Ferinject
- Where
- Kenya
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Vaccine Response Impaired
Immunogenicity of Co-administered Yellow Fever and Measles, Mumps, and Rubella (MMR) Vaccines
This study evaluates seroconversion against measles, mumps, rubella and yellow fever following vaccination. One-third of children will receive both yellow fever and measles, mumps, and rubella (MMR) vaccines on the same day; one…
- Trial name
- NCT03368495
- Testing
- Co-administration of MMR/YF, MMR followed by YF, YF followed by MMR
- Where
- 4 sites in Argentina
- Volunteers
- 851 people, healthy volunteers welcome
- Sponsor
- Alba Maria Ropero
HIV, Pneumococcal Infections
Mechanisms of Impaired HIV-associated B Cell and Pneumococcal Vaccine Responses
Human Immunodeficiency Virus (HIV) infection is complicated by high rates of infections and cancers which are often the cause of death rather than the HIV/acquired immune deficiency syndrome (AIDS) virus itself.
- Conditions
- HIV, Pneumococcal Infections, Pneumococcal Vaccines
- Trial name
- NCT02012309
- Testing
- PCV-13, PPSV-23
- Where
- 3 sites in United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Rotavirus Infection, Vaccine Response Impaired
The Effects of Increased Inoculum on Oral Rotavirus Vaccine Take and Immunogenicity
Rotavirus is the leading cause of diarrhea in children worldwide. Oral rotavirus vaccines work remarkably well in high-income countries, but for unclear reasons they underperform in low-income countries.
- Conditions
- Rotavirus Infection, Vaccine Response Impaired, Vaccine Virus Shedding
- Trial name
- NCT02992197
- Testing
- Rotarix, dose 1, Rotarix, dose 2
- Where
- Bangladesh
- Volunteers
- 220 people, healthy volunteers welcome
- Sponsor
- University of Vermont