Clinical trials: Asymptomatic Infections
COVID-19, Asymptomatic Pregnant
COVID-19 PCR Test Results in Asymptomatic Pregnants
In order to prevent contamination from the pregnant women hospitalized in this clinic, the RT-PCR test is performed from the oropharyngeal and nasal swab sample taken before hospitalization.
- Trial name
- NCT04410939
- Testing
- Reverse transcription polymerase chain reaction
- Where
- Turkey (Türkiye)
- Volunteers
- 179 people, healthy volunteers welcome
- Sponsor
- Istanbul Medipol University Hospital
COVID-19
Establishment of a Biological Collection During COVID-19 Serological Screening in APHP Professionals (COVID-HOP)
The objective of the COVID-HOP study is to identify biological and non-biological markers associated to: a positive or negative serology anti SRAS-Cov-2; a positive serology and having presented symptoms or, on the contrary, not…
- Trial name
- COVID-HOP (NCT04418375)
- Where
- France
- Volunteers
- 1,200 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Anosmia, Asymptomatic COVID-19
Longitudinal At Home Smell Testing to Detect Infection by SARS-CoV-2
The purpose of this study is to learn more about how to better track smell recovery in people who have been infected with the SARS-CoV-2 virus (which causes COVID-19).
- Conditions
- Anosmia, Asymptomatic COVID-19, COVID-19 Respiratory Infection, Influenza
- Trial name
- NCT05040659
- Testing
- AROMHA Longitudinal Smell Test
- Where
- United States
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Colonization, Asymptomatic, Probiotic Intervention
Probiotic in Fruit Snack
The aim of this study is to investigate whether a fruit snack containing probiotic ''Lactobacillus rhamnosus'' can survive and establish itself more effectively in the gut when it is protected inside a natural plant-protein…
- Conditions
- Colonization, Asymptomatic, Probiotic Intervention, Gut Microbiota Diversity and Composition, Gut-brain Axis
- Trial name
- Probiotics (NCT07679490)
- Testing
- Microencapsulated Lactobacillus rhamnosus Fruit Snack
- Where
- Ireland
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University College Dublin
Leishmaniasis
Mediterranean Visceral Leishmaniasis With Leishmania Infantum
L. infantum leishmaniasis is endemic in the South of France. For several years, there has been an expansion of the territory of sandflies (vector of leishmaniasis), with the appearance of cases of canine leishmaniasis in new…
- Trial name
- AsymptoGen (NCT03784248)
- Testing
- blood donation and isolation of leuco-platelet layers
- Where
- France
- Volunteers
- 1,400 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire de Nice
Influenza
Asymptomatic Flu Project
Although clinical presentation of influenza is often symptomatic, asymptomatic cases also occur. The knowledge of the incidence of asymptomatic influenza among healthcare workers is very important because of the risk of…
- Trial name
- AFP (NCT02868658)
- Testing
- Blood sampling, Nasal swab
- Where
- France
- Volunteers
- 289 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Covid19
Face Masks to Reduce SARS-CoV-2 Infections (COVID-19) in Bangladesh
The primary goal of the village-level intervention is to assess whether mask-wearing reduces community-level asymptomatic and symptomatic SARS-CoV-2 infections, assessed via PCR testing.
- Trial name
- NCT05197725
- Testing
- Face mask, Face mask awareness, Face mask promotion through community values or individual information
- Where
- Bangladesh
- Volunteers
- healthy volunteers welcome
- Sponsor
- Yale University
Surgery, COVID
Surgery During Covid-19: The Role of Asymptomatic Patients, a Survey
a brief questionnaire to get a clearer picture of the situation regarding surgical patients with special emphasis on asymptomatic Covid-19 patients.
- Conditions
- Surgery, COVID, Asymptomatic Patient, Covid-19
- Trial name
- NCT04344197
- Testing
- global survey
- Where
- Italy
- Volunteers
- 1,200 people, healthy volunteers welcome
- Sponsor
- University of Rome Tor Vergata
Human Influenza
Transmission of Influenza Virus From Asymptomatic Healthcare Workers and Inpatients in the Acute Care Hospital Setting
The epidemiology and transmission dynamics of influenza in hospitals are only poorly understood, particularly with respect to subjects without symptoms of influenza infection (e.g.
- Trial name
- TransFLUas (NCT02478905)
- Testing
- Influenza
- Where
- Switzerland
- Volunteers
- 700 people, healthy volunteers welcome
- Sponsor
- University of Zurich
COVID-19
Wearable Diagnostic for Detection of COVID-19 Infection
The goals of this study are 1) to validate the use of a wearable diagnostic capability and software as a medical device (SaMD) algorithm for the pre or early-symptomatic detection of COVID-19 infection, 2) assess the wearable…
- Trial name
- NCT04742569
- Where
- United States
- Volunteers
- 790 people, healthy volunteers welcome
- Sponsor
- ClinOne, Inc.
Helicobacter Pylori Infection
The Safety and Tolerability, Pharmacokinetics of TNP-2092 Capsules in Combination With Rabeprazole Sodium Enteric-coated Tablets
A phase 1, single-center, double-blind, randomized, placebo-controlled clinical trial to evaluate the safety and tolerability, pharmacokinetics, and preliminary efficacy of multiple administrations of TNP-2092 Capsules in…
- Trial name
- NCT06337604
- Testing
- TNP-2092 capsules, Rabeprazole sodium enteric-coated tablets
- Where
- China
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- TenNor Therapeutics Inc.
Bacterial Vaginosis
Asymptomatic Bacterial Vaginosis and Herpes Simplex Virus Type 2 (BV/HSV-2) Shedding Study
This investigation assessed the effects of asymptomatic BV on daily genital tract shedding of HSV-2 by determining shedding frequency before and after treatment of asymptomatic BV.
- Trial name
- MASH (NCT00464542)
- Testing
- Metronidazole
- Where
- 2 sites in United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
Malaria, Asymptomatic Parasitaemia
Community-Based Cohort Study of Hidden Malaria Infections, Diagnostic Gaps, & Mosquito Vector Dynamics in Odisha, India
The goal of this prospective cohort study is to understand the factors responsible for the persistence of malaria transmission in some areas despite intensive control efforts.
- Trial name
- CSCMi3 (NCT07770048)
- Where
- 2 sites in India
- Volunteers
- 3,000 people, healthy volunteers welcome
- Sponsor
- London School of Hygiene and Tropical Medicine
Immunologic Activity Alteration
Asymptomatic COVID-19 Infection Among Healthcare Workers
To assess the seroprevalence of SARS-CoV-2 IgG in Health care workers in three University Hospitals
- Trial name
- NCT04354792
- Testing
- Serum SARs COV 2 IGg screening in health care workers
- Where
- Egypt
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini Hospital
COVID-19
Assessment of Incidence of SARS-CoV-2 Infection and COVID-19 in Brazil (AVISA)
This is an observational study, meaning that no interventions is tested, to determine incidence of SARS-CoV-2 infection and COVID-19 in different clinical sites in Brazil in several age groups.
- Trial name
- AVISA (NCT04355338)
- Where
- 11 sites in Brazil
- Volunteers
- 3,520 people, healthy volunteers welcome
- Sponsor
- Butantan Institute
COVID-19
Contagiousness and Immunogenicity Status of COVID-19 in Asymptomatic Population (COVID-19 CONDITION)
In late December 2019, a new coronavirus strain emerged in China causing coronavirus disease 2019 (COVID-19). Since then, COVID-19 has become a global pandemic outbreak being declared a "public health emergency of international…
- Trial name
- CONDITION (NCT04389658)
- Where
- Spain
- Volunteers
- 1,526 people, healthy volunteers welcome
- Sponsor
- Igenomix
Monkey Pox
Monkeypox ASymptomatic Shedding: Evaluation by Self-Sampling MPX-ASSESS
Monkeypox (MPX) is a viral zoonosis, caused by the Monkeypox virus (MPXV), a DNA virus that belongs to the Orthopoxvirus genus and is closely related to the variola virus, the causative agent of smallpox.
- Trial name
- MPX-Assess (NCT05443867)
- Where
- Belgium
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Institute of Tropical Medicine, Belgium
Pseudomonas Aeruginosa, Colonization, Asymptomatic
Carbapenem-resistant Pseudomonas Aeruginosa: the SAMPAN Study.
Pseudomonas aeruginosa causes severe infections in hospitalized patients. The worldwide emergence of carbapenem-resistant P. aeruginosa (CRPA) makes infections by these pathogens almost untreatable.
- Conditions
- Pseudomonas Aeruginosa, Colonization, Asymptomatic, Nosocomial Infection
- Trial name
- SAMPAN (NCT05282082)
- Where
- 3 sites in Indonesia, Italy and 1 more
- Volunteers
- 2,105 people, healthy volunteers welcome
- Sponsor
- Erasmus Medical Center
Malaria,Falciparum, Malaria
CHILD (Child Health and Infection With Low Density) Malaria
This trial will assess the long-term health and socioeconomic impact of interventions targeting low-density malaria infection (LMI) among children in Tanzania
- Trial name
- NCT05567016
- Testing
- Active case detection using molecular testing (ACDm), Passive case detection using molecular testing (PCDm), Control (standard of care)
- Where
- Tanzania
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
HELICOBACTER PYLORI INFECTIONS, Intestinal Metaplasia
Endoscopic Screening of Asymptomatic Patients for Helicobacter Pylori, Intestinal Metaplasia, and Barrett's Mucosa During Screening Colonoscopy
The goal of this observational study is to learn how common Helicobacter pylori (H. pylori) infection is in adults without stomach or upper gastrointestinal symptoms who are having a preventive screening colonoscopy.
- Conditions
- HELICOBACTER PYLORI INFECTIONS, Intestinal Metaplasia, Barett's Esophagus
- Trial name
- G-SCOGE (NCT07346521)
- Where
- Austria
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Sigmund Freud PrivatUniversitat