Clinical trials: Seroprevalence
COVID, Corona Virus Infection
Seroprevalence of SARS-Cov-2 Antibodies in Children
It is unknown what proportion of healthy children have been exposed to SARS-Cov-2 and how many have antibodies. The aim of this study is to follow a cohort of healthy children over six months and measure their antibodies to…
- Conditions
- COVID, Corona Virus Infection, Multisystem Inflammatory Syndrome in Children
- Trial name
- NCT04347408
- Testing
- Covid-19 Antibody testing (IgG and IgM), Blood Storage
- Where
- 5 sites in United Kingdom
- Volunteers
- 1,100 people, healthy volunteers welcome
- Sponsor
- Queen's University, Belfast
Acute Lymphoblastic Leukemia, Pediatric
Vaccine Immune Recovery After Leukemia
This observational study aims to assess recovery of the immune system and immunity to vaccine-preventable diseases in children, adolescents, and young adults who recently completed treatment for acute lymphoblastic leukemia…
- Trial name
- VIRAL (NCT05622682)
- Testing
- Observational only: Serology and flow cytometry for ALL cohort participants, Observational only: Infection rates
- Where
- 6 sites in United States
- Volunteers
- 89 people
- Sponsor
- Children's Hospital of Philadelphia
Dengue Fever, Zika
Sylvatic Transmission of Zika, Dengue, and Chikungunya Viruses in Thailand and Cambodia
Background: Zika, dengue, and chikungunya are spread by mosquitos. These diseases have a major impact on public health. This is especially true in in Southeast Asia.
- Conditions
- Dengue Fever, Zika, Vector-Borne Diseases, Chikungunya
- Trial name
- NCT04434846
- Where
- Cambodia
- Volunteers
- 300 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
HIV, HIV Infections
Effect of Valacyclovir in the Reduction of HSV-2 Recurrence and Shedding
The purpose of the study is to determine how common herpes is among persons with HIV who do not know they have it and if valacyclovir reduces outbreaks of herpes, the amount of HIV in the blood, and the amount of HSV in bodily…
- Trial name
- NCT00803543
- Testing
- Valacyclovir
- Where
- United States
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Hepatitis A Vaccine
This Study Will Evaluate the Persistence of Hepatitis A Antibodies, 8 Years and 10 Years Later, in Children Who Had Received Havrix at Selected Health Centres of Panama
The purpose of this study is to evaluate the persistence of hepatitis A antibodies, approximately 8 years and 10 years post vaccination with the complete series of Havrix (2 doses) and the partial series completion (1 dose).
- Trial name
- NCT02712359
- Testing
- Blood sample collection
- Where
- 3 sites in Panama
- Volunteers
- 1,201 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
SARS-CoV 2, COVID-19
Seroprevalence of SARS CoV 2 Antibodies in Previously Undiagnosed Healthcare Workers
The purpose of this study is to identify healthcare workers with SARS CoV 2 antibodies who have not been previously diagnosed and are presumed COVID-19 negative, then determine the level of immunity in this population which could…
- Trial name
- NCT04383587
- Testing
- Serologic testing
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
HIV/AIDS
Developing a Patient Navigation Intervention for PrEP Continuum of Care Among Young Latino MSM (PrEParate)
This study aims to help young Latino gay and bisexual men access sexual health information, including PrEP. Participants will be randomly assigned to either the patient navigation or the usual care condition and followed for 6…
- Trial name
- NCT04048382
- Testing
- Patient Navigation, Usual Care
- Where
- United States
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- San Diego State University
Pertussis, Pertussis Vaccines
A Study to Determine the Seroprevalence of Bordetella Pertussis in Adults in Hungary
The purpose of this study is to perform an epidemiological survey of the adult population in Hungary to calculate the seroprevalence of pertussis.
- Trial name
- NCT02014519
- Testing
- Blood sampling, Data collection
- Where
- 5 sites in Hungary
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Pertussis, Pregnancy Related
Seroprevalence of Bordetella Pertussis Antibodies and Anti-pertussis Antibody Response After a Single Dose of Tdap in Pregnant Thai Women
This study evaluated the seroprevalence of Bordetella pertussis antibodies and anti-pertussis antibody response after a single dose of reduced-antigen, combined diphtheria, tetanus, and acellular pertussis vaccine (Tdap) in…
- Trial name
- NCT03498300
- Testing
- Tdap vaccine
- Where
- Thailand
- Volunteers
- 129 people, healthy volunteers welcome
- Sponsor
- Mahidol University
SARS-CoV2 Infection
Rutgers Pilot for Dental Health Care Worker SARS-CoV-2 Testing
10 asymptomatic DHCWs in the Oral Medicine clinic, Rutgers School of Dental Medicine, with no history of documented COVID-19 infection or viral exposure, were enrolled in a study that interrogated DHCWs' perceptions of safety and…
- Trial name
- PREDICT-DHCW (NCT05607147)
- Testing
- Testing for SARS CoV2 Antigen and Antibody
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Rutgers, The State University of New Jersey