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

M

MeMed

Status

Completed

Conditions

Fever

Treatments

Diagnostic Test: ImmunoXpert

Study type

Observational

Funder types

Industry

Identifiers

NCT03075111
MM-1007-SP

Details and patient eligibility

About

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.

Enrollment

3,000 patients

Sex

All

Ages

3 months to 18 years old

Volunteers

No Healthy Volunteers

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

Trial contacts and locations

2

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Data sourced from clinicaltrials.gov

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