An observational study in Covid19, sponsored by Hunter College of City University of New York. Completed at 1 site in Bolivia. Open to participants aged 21 Years to 64 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-10-15.
Sponsored by Hunter College of City University of New York · Observational
This is a study of validation for diagnostic techniques used on epidemiological control in the COVID-19 pandemic. It will be carried out in accredited public, private and university clinical laboratories of the collaborator institutions of the project based in Tarija, Bolivia. It is designed as a sectional validation study, using samples from specific groups of participants from the municipality of Tarija grouped according to their category with respect to symptoms and viral load of COVID-19. The sample is selected for convenience.
7,990 studies on the registry are indexed under COVID-19; 466 are open to participants now.
This study's enrollment of 30 is below the median of 268 across 3,208 observational studies indexed under COVID-19.
Browse COVID-19 studies →Hunter College of City University of New York is the lead sponsor of 36 studies on the registry; 9 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Validation will be carried out using samples from volunteer adults from the municipality of Tarija, Bolivia, without gender restriction. Samples will be grouped according to the clinical classification determined above. These individuals will need to sign the informed consent form required to agree to be part of the study and provide their complete information or access to their medical history.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Samples of volunteer participants will be collected after informed consent and classified as symptomatic, asymptomatic and negative.
Diagnostic Test: RT-PCR · Diagnostic Test: LAMP · Diagnostic Test: POOL RT-PCR · Diagnostic Test: POOL LAMP
RT-PCR (Gold standard): Real-time PCR testing with reverse transcriptase (RT-PCR). The test consists of a polymerase chain reaction that has previously had a reverse transcription phase, RT. This test allows the cADN (complementary DNA) to be obtained from a RNA chain. This technique allows the detection and amplification of a sequence from a strand of RNA.
Also known as: Real-Time Polymerase Chain Reaction
LAMP: The LAMP technique, like PCR, has the ability to amplify specific DNA fragments (target sequence), allowing for highly sensitive detection of pathogens. Unlike pcr, LAMP requires between 4 and 6 feeders, external F3 and B3 feeders, which hybridte with the outer regions of the target sequence, while the internal FIP and BIP have sequences in both ways that allow the formation of a loop. The LAMP reaction is isothermal, i.e. it takes place at a single temperature. LAMP has been successfully used to detect viral diseases as well as viral pathogens such as West Nile virus, TMR-1, Norovirus, avian influenza, foot-and-mouth disease, classical swine fever, among others.
Also known as: Loop-mediated isothermal amplification
POOL RT-PCR: This test aims to mix in a single sample the extractions obtained from several people. The joint sample is evaluated and, if negative, it is understood that all are free of COVID-19; if it is positive, an array system is used to detect the affected person. That is, a single PCR (polymerase chain reaction), the diagnostic test used to detect the virus pathogen is applied to a group and repeated individually if positive.
Also known as: Pooled Real-Time Polymerase Chain Reaction
POOL LAMP: Like the RT-PCR pool test. This test essentially involves mixing in a single sample the extractions obtained from several people. This joint sample is tested and, if it is negative, it is understood that everyone is free of COVID-19; if it is positive, an array system is used to detect the affected person. That is: a single LAMP applies to a group
Also known as: Pooled Loop-mediated isothermal amplification
Validation
Validate different molecular tests and sampling and sample type strategies used in epidemiological control of COVID-19 diagnosis in Tarija, Bolivia.
Time frame: 1 month
RT- PCR (Saliva)
Validate the use of molecular testing based on the PCR method using Saliva samples
Time frame: 1 week
LAMP
Validate the use of the molecular test based on the LAMP method using saliva and nasopharyngeal samples
Time frame: 1 week
POOL PCR
Validate the use of molecular tests with Pool PCR strategy using saliva samples
Time frame: 1 week
POOL LAMP
Validate the use of molecular tests with Pool LAMP strategy using saliva samples
Time frame: 1 week
Plan to share: Yes — We will share deidentified data
Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report, Analytic code
Time frame: Paper submitted for publication
Access criteria: Open
This study is completed, as verified in Oct 2024. You cannot join it, but the record below documents what was studied.
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Hunter College of City University of New York