Host-based Immunoassay for Differentiating Bacterial From Viral Infections (Post-marketing Study of ImmunoXpert™ - SPIRIT Study)

August 2, 2022 updated by: MeMed Diagnostics Ltd.

Field Study of Host-based Immunoassay for Differentiating Bacterial From Viral Infections (Post-marketing Study of ImmunoXpert™ - SPIRIT Study)

This is a retrospective external field study of a novel in vitro diagnostic (IVD) assay (ImmunoXpert™).

The study will involve reviewing the medical charts of about 4500 pediatric patients that were tested using ImmunoXpert™ as part of the routine workup for acute febrile illness.

ImmunoXpert™ uses a computer algorithm to combine immunoassay measurements of three host immune proteins (TRAIL, IP-10, and CRP) present in human blood. The test is intended for use in conjunction with clinical assessments and other laboratory findings as an aid to differentiate bacterial from viral infection.

Statistical analysis will be performed to compare the diagnostic accuracy of ImmunoXpert™ with that of current practice lab testing e.g., WBC, CRP, and PCT (whichever were taken as part of routine care) and clinical suspicion at time of requisition.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
3000

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Israel
      • Hadera, Israel
        • Hillel Yaffe Medical Center
      • Haifa, Israel, 31048
        • Bnei Zion Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

3 years to 14 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

  1. Patients with an acute bacterial infection
  2. Patients with an acute viral infection
  3. Patients with an acute co-infection (bacterial and viral)
  4. Patients with an undetermined disease etiology

Description

Inclusion Criteria:

  • Patients aged 3 month to 18 years that were admitted due to acute febrile illness, and ImmunoDx test was taken as part of their workup.

The febrile illness should also fulfill the following criteria:

  • The patient had a peak temperature ≥38°C (AND)
  • Symptoms initiated ≤ 7 days before sampling (AND)
  • A retrospective diagnosis of bacterial or viral or mixed infection was anonymously determined by a panel of three independent senior pediatricians.

The non-infectious disease control group will include:

  • A retrospective diagnosis of a non-infectious disease was anonymously determined by a panel of three independent senior pediatricians physicians.
  • Patients with a non-infectious disease ( and ImmunoDx test was wrongly taken)

Exclusion Criteria:

  • Samples from patients who had one or more of the following criteria will be excluded from the study:
  • Another infection episode during the last 3 weeks before sampling
  • Congenital immune deficiency (CID)
  • A proven or suspected HIV-1, HBV, HCV infection
  • Active hematological malignancy
  • Current treatment with immune-suppressive or immune-modulating therapies including without limitations:
  • Use of high dose steroids >1 mg/kg/day prednisone or equivalent in the last two weeks
  • Monoclonal antibody administration
  • Intravenous immunoglobulin (IVIG)
  • Other illnesses that affect life expectancy and/or quality of life
  • Suspicion of gastrointestinal infection

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
The sensitivity and specificity of a host-response based diagnostics in differentiating between bacterial and viral etiology of patients with an acute febrile disease.
Time Frame: 0-7 days after the initiation of symptoms
0-7 days after the initiation of symptoms

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
The sensitivity and specificity of a host-response based diagnostics in differentiating between infectious and non-infectious disease etiology
Time Frame: 0-7 days after the initiation of symptoms
0-7 days after the initiation of symptoms

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
MeMed Diagnostics Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 7, 2015

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 1, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 5, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 6, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 8, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 9, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 4, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 2, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MM-1007-SP

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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