Clinical trials: Reinfection
Sars-CoV-2 Infection, MIS-C
COVID-19 and Multisystem Inflammatory Syndrome in Children (MIS-C) Risk / World Health Organization (WHO)
This study is a multicenter, international, non interventional, retrospective study about SARS-CoV-2 and Multisystem Inflammatory Syndrome (MIS-C) reinfection risk in children.
- Trial name
- REPI (NCT06255860)
- Where
- France
- Volunteers
- 204 people, healthy volunteers welcome
- Sponsor
- Association Clinique Thérapeutique Infantile du val de Marne
Plasmodium Vivax Infection, Plasmodium Vivax Clinical Episode
Effect of Liver and Blood-stage Treatment on Subsequent Plasmodium Reinfection and Morbidity
This study specifically seeks to quantify the contribution of relapes to the burden of P. vivax infections and disease by determining on the effect of radical pre-erythrocytic and erythrocytic clearance on subsequent rates of…
- Conditions
- Plasmodium Vivax Infection, Plasmodium Vivax Clinical Episode, Plasmodium Falciparum Infection, Plasmodium Falciparum Clinical Episode
- Trial name
- NCT02143934
- Testing
- Primaquine, Chloroquine, Artemether Lumefantrine
- Where
- Papua New Guinea
- Volunteers
- 524 people, healthy volunteers welcome
- Sponsor
- Papua New Guinea Institute of Medical Research
Chronic Granulomatous Disease (CGD), X-Linked Severe Combined Immune Deficiency (XSCID)
Evaluation of Patients With Immune Function Abnormalities
This study will evaluate patients with abnormal immune function that results in recurrent or unusual infections or chronic inflammation.
- Conditions
- Chronic Granulomatous Disease (CGD), X-Linked Severe Combined Immune Deficiency (XSCID), Leukocyte Adhesion Deficiency 1 (LAD), Graft Versus Host Disease (cGvHD)
- Trial name
- NCT00128973
- Where
- United States
- Volunteers
- 3,500 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
COVID-19
Severe Acute Respiratory Syndrome Coronavirus 2 Re-Infection Risk and Vaccine Efficacy in Austria
The coronavirus disease 2019 (COVID-19) pandemic was caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus.
- Trial name
- SARIVA (NCT06162533)
- Testing
- Vaccination against SARS-CoV-2
- Where
- 3 sites in Austria
- Volunteers
- 9,090,868 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
COVID-19 Infection, Immunization; Infection
Evaluation of COVID-19 Immune Barrier and Reinfection Risk
The goal of this observational study is to evaluate the protective effect of immune barrier on secondary infection after COVID-19 (coronavirus disease 2019) vaccination or COVID-19 virus Omicron B A.
- Trial name
- COVID (NCT05774093)
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Schistosomiasis, Malaria
The Effect of Praziquantel Treatment on Schistosoma Mansoni Morbidity and re-Infection Along Lake Victoria, Uganda
The overall objective of the project is to contribute to an increased knowledge about the effect of praziquantel on schistosomiasis related morbidity and re-infection level among communities living along Lake Victoria in Mayuge…
- Trial name
- NCT00215267
- Testing
- praziquantel
- Where
- Uganda
- Volunteers
- 540 people, healthy volunteers welcome
- Sponsor
- DBL -Institute for Health Research and Development
Helminthiasis, Ascaris Infection
Soil-transmitted Helminth Reinfection Rates After Single and Repeated School Hygiene Education
Soil-transmitted helminth (STH) infections caused by Ascaris lumbricoides, Trichuris trichiura, or hookworm, affect approximately 1.5 millions individuals primarily in tropical and subtropical regions.
- Conditions
- Helminthiasis, Ascaris Infection, Trichuris Infection, Hookworm Infections
- Trial name
- NCT04227834
- Testing
- Health hygiene education
- Where
- Indonesia
- Volunteers
- 432 people, healthy volunteers welcome
- Sponsor
- Universitas Sumatera Utara
Cmv Congenital, CMV Viremia
Cytomegalovirus (CMV) Vaccines: Reinfection and Antigenic Variation
The objectives of the protocol are to determine if a structured cognitive-behavioral interventional counseling of pregnant women can limit acquisition of human cytomegalovirus (HCMV) during pregnancy that we believe, will in turn…
- Trial name
- CMV (NCT03443791)
- Testing
- Women Enrolled, Newborns of Female Study Participants
- Where
- Brazil
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
SARS Coronavirus (SARS-CoV-2) Infection
A Systems Approach to Predict the Outcome of SARS-CoV-2 in the Population of a City; COVID-19
This study is to gain critical knowledge to understand the factors influencing the outcome of a pandemic virus within the city of Basel.
- Trial name
- NCT04351503
- Testing
- Study A, Study B, Study C
- Where
- 6 sites in Switzerland
- Volunteers
- 126,586 people, healthy volunteers welcome
- Sponsor
- University Hospital, Basel, Switzerland
Intestinal Parasitic Infections, Malnutrition
Effects of Vitamin A Supplementation on Intestinal Parasitic Reinfections
Intestinal parasitic infections, malnutrition and iron deficiency anaemia (IDA) are still considered as public health problems in rural Malaysia especially among Orang Asli children.
- Conditions
- Intestinal Parasitic Infections, Malnutrition, Anemia
- Trial name
- NCT00936091
- Testing
- vitamin A supplements
- Where
- Malaysia
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Sana'a University
Primary Immune Deficiency Diseases
Evaluate Bacteriophage as a Useful Immunogen in Patients With Primary Immune Deficiency Diseases (PIDD)
This protocol is designed to ascertain whether the bacteriophage 0X174 neoantigen is safe and effective as an antigen used in the evaluation of primary and secondary immune responses.
- Trial name
- Bacteriophage (NCT01617122)
- Testing
- Bacteriophage OX174
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of South Florida
Primary Immune Deficiencies, Autoimmune Diseases
Investigation of Immune Disorders and Deficiencies
The immune system is an intricate system comprised of specialized cells, proteins, tissues and organs. Proper functioning is critical to the body's ability to defend itself against harmful pathogens.
- Conditions
- Primary Immune Deficiencies, Autoimmune Diseases, Inflammatory Diseases, Common Variable Immune Deficiencies
- Trial name
- NCT01981785
- Where
- United States
- Volunteers
- 343 people, healthy volunteers welcome
- Sponsor
- O & O Alpan LLC