Clinical trials: Seroprevalence
COVID-19
Seroprevalence and Immunoprotection Against COVID-19 in Parisian Children
The paediatric population present mild or asymptomatic form of SARS-CoV-2 infection. This study asses the frequency of patients with SARS-CoV2 Antibodies (Ab) (seroprevalence) and the neutralizing typology of those Ab…
- Trial name
- AP-PEDCOVID (NCT04490811)
- Testing
- no intervention. observational cohort study
- Where
- France
- Volunteers
- 800 people
- Sponsor
- Hôpital Necker-Enfants Malades
HIV Infections
COVID-19 Prevalence in HIV-infected Patients
North-east area of France was hit in February 2020 by the new coronavirus disease, more severely than other French regions. Factors affecting the evolution of the disease and its severity have been quickly identified, among them…
- Trial name
- SeCoVIHA (NCT04515225)
- Testing
- Blood Sample
- Where
- France
- Volunteers
- 500 people
- Sponsor
- University Hospital, Strasbourg, France
Healthy, Healthy Adult
Seroprevalence and Vaccination Rate of Hepatitis B Virus and Varicella-zoster Virus Among Medical Students Under Immunizing Program
This study is a cross-sectional study. The study aims to determine the levels of immunity against hepatitis B virus and varicella-zoster virus in medical students.
- Trial name
- NCT06901362
- Where
- Thailand
- Volunteers
- 401 people, healthy volunteers welcome
- Sponsor
- Thammasat University
Cytomegalovirus Infections
CMV Infection in Adolescent Males
The purpose of this study is to find out more about cytomegalovirus (CMV) and how it is spread between people. One thousand adolescent males ages 12-17 years will participate in this study.
- Trial name
- NCT00302029
- Where
- 3 sites in United States
- Volunteers
- 411 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Brucellosis, Low Back Pain
Seroprevalence of Brucella Antibodies in High-Risk Patients With Low Back Pain: A Case-Control Study
The goal of this observational case-control study is to assess the presence of Brucella antibodies in patients with low back pain who are at high risk for brucellosis exposure, such as those with animal contact or consumption of…
- Trial name
- NCT07112677
- Testing
- Brucella Antibody Testing (ELISA)
- Where
- 2 sites in Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Elham Ahmed Hassan
Blood Donors, Dengue
Dengue Seroprevalence Study in Blood Donors in the French West Indies
Dengue is an infectious disease most prevalent in the world. This disease is endemic in the Caribbean, with an increase in seasonal rains.
- Trial name
- DengSeroprevAn (NCT01104740)
- Testing
- Biological sample collection
- Where
- 2 sites in Guadeloupe, Martinique
- Volunteers
- 817 people, healthy volunteers welcome
- Sponsor
- Etablissement Français du Sang, Martinique
COVID-19
Seroprevalence of Covid-19 in the Staff of the University Hospitals of Strasbourg
The Grand Est region is one of the most affected regions in France during the first wave of the COVID-19 epidemic. A significant increase in the number of patients hospitalized for SARS-CoV 2 infection at the University Hospitals…
- Trial name
- SeroPrevHUS (NCT05652582)
- Where
- France
- Volunteers
- 5,694 people
- Sponsor
- University Hospital, Strasbourg, France
Hepatitis A, Viral Hepatitis Vaccines
Study to Assess Seroprevalence of Hepatitis A, Hepatitis B and Bordetella Pertussis in Mexico
This study will assess the seroprevalence of hepatitis A virus (HAV), hepatitis B virus (HBV) and Bordetella pertussis (B. pertussis) in adolescents and young adults in Mexico.
- Trial name
- NCT02112890
- Testing
- Data collection
- Where
- Mexico
- Volunteers
- 1,603 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Blood Donors, Acquired Immunodeficiency Syndrome
KSHV Infection in Blood Donors From Texas
To determine the seroprevalence of Kaposi's sarcoma-associated herpesvirus (KSHV/HHV8) in blood donors from Texas. Also to examine the donors' demographic characteristics and to characterize the KSHV using polymerase chain…
- Conditions
- Blood Donors, Acquired Immunodeficiency Syndrome, Blood Transfusion, Herpesvirus, Kaposi Sarcoma-Associated
- Trial name
- NCT00006310
- Sponsor
- The University of Texas Health Science Center at San Antonio
Covid19
Prevalence of COVID-19 Antibodies Kingman AZ
The COVID-19 disease outbreak is a historic event that has challenged medical systems in the United States. Currently, most reports of confirmed cases rely on the testing of symptomatic patients.
- Trial name
- NCT04533360
- Testing
- VITROS Anti-SARS-CoV-2 IgG test
- Where
- United States
- Volunteers
- 566 people, healthy volunteers welcome
- Sponsor
- Kingman Regional Medical Center
Hepatitis C, HIV Infections
To Determine the Prevalence of HIV and Other Related Infections Such as Hepatitis C, Along With Associated Risk Behaviors, in Patients With Severe Mental Illness (SMI).
It is suspected, but not well documented, that persons with severe mental illness (SMI) represent a significant transmission source of serious infectious diseases.
- Conditions
- Hepatitis C, HIV Infections, Mental Disorders
- Trial name
- NCT00007709
- Where
- United States
- Sponsor
- US Department of Veterans Affairs
HIV, Hepatitis E
Seroprevalence of Hepatitis E in HIV Positive Patients in Basque Country in 2016 (VIhVhEpb)
Study of seroprevalence of hepatitis E among HIV positive patient in Basque country, France in 2016.
- Trial name
- VIhVhEpb (NCT02847507)
- Where
- France
- Volunteers
- 307 people
- Sponsor
- Centre Hospitalier de la côte Basque
SARS-CoV Infection, Covid19
Cross Sectional CFAR HIV/COVID-19 Study
The main purpose of this research study is to learn the rate of SARS COV-2 on HIV infected children, adolescents, and youth receiving their primary HIV care at the University of Miami Miller School of Medicine.
- Trial name
- NCT04514016
- Where
- United States
- Volunteers
- 64 people
- Sponsor
- University of Miami
COVID-19 Infection
Changes in Seroprevalence and Wellness Over Time in Healthcare Workers (CONSERVE-HCW)
The Investigators propose a multi-center, observational, longitudinal, cohort study of the serology and wellness of HCWs over a year of the COVID-19 pandemic.
- Trial name
- CONSERVE-HCW (NCT04595175)
- Where
- United States
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Brian Tiffany, MD
SARS-CoV-2 Infection
Effectiveness and Adherence to Closed Face Shields to Prevent COVID-19 Transmission
A non-inferiority randomized controlled trial that aims to determine the effectiveness and adherence of the use of closed-face shields and surgical face masks in comparison with the use of surgical face masks for the prevention…
- Trial name
- COVPROSHIELD (NCT04647305)
- Testing
- Closed face shield with Surgical face mask use, Surgical face mask use only
- Where
- Colombia
- Volunteers
- 233 people, healthy volunteers welcome
- Sponsor
- University of Los Andes, Columbia
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
Pompe Disease (Late-onset)
A Study About Antibody Levels and Biomarkers in the Blood in People With Late-onset Pompe Disease
Pompe disease is a genetic condition which causes muscle weakness over time. People with Pompe disease have a faulty gene that makes an enzyme called acid alpha-glucosidase (or GAA).
- Trial name
- NCT06150820
- Testing
- No Intervention
- Where
- 53 sites in United States, Australia and 9 more
- Volunteers
- 119 people
- Sponsor
- Astellas Gene Therapies
Coronavirus Infection, Prevalence
Epidemiological Study of Seroprevalence Against the SARS-CoV-2 Virus (COVID-19)
In order to inform the public decision on the containment strategy and knowledge of the intensity of the epidemic during post-containment, estimates of the share of the population infected with the SARS-CoV-2 virus responsible…
- Trial name
- COVAL-NANCY (NCT04448769)
- Testing
- Anti-SARS-CoV-2 IgT seropositivity
- Where
- France
- Volunteers
- 2,006 people, healthy volunteers welcome
- Sponsor
- Central Hospital, Nancy, France
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
Covid19
Face Masks to Reduce COVID-19 in Bangladesh
The primary goal of the village-level intervention is to assess whether mask-wearing reduces community-level COVID-19 seroconversion. The individual experiment assess whether masks protect against COVID-19 seroconversion.
- Trial name
- NCT04630054
- Testing
- Face mask, Face mask awareness
- Where
- Bangladesh
- Volunteers
- 350,000 people, healthy volunteers welcome
- Sponsor
- Yale University