Evaluation of the SRI B. Anthracis Lethal Factor Diagnostic System

NCT ID: NCT05672875

Last Updated: 2023-11-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Total Enrollment

343 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-01-23

Study Completion Date

2023-04-20

Brief Summary

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This study is intended to estimate the Anthrax LF Dx System specificity. Sensitivity will be estimated with 10% of the samples spiked with recombinant Bacillus anthracis lethal factor (LF) used to prepare contrived positive samples.

Detailed Description

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This is a prospective, non-interventional, multi-center study assessing the clinical specificity of the Anthrax LF Dx System using venous blood samples collected from presumptive anthrax negative adult male and female healthy and symptomatic subjects (non- B. anthracis infected).

Up to 500 subjects may be enrolled to meet the goal of 440 evaluable subjects (220 healthy and 220 symptomatic). Subjects will have one venous blood sample collected from a single time-point tested with the Anthrax LF Dx System. At each clinical site, specimens will be randomly selected such that 10% (40 of 400) of all subjects' venous blood samples (total of 40 \[20 healthy and 20 symptomatic\]) will be spiked with recombinant B. anthracis LF to prepare a contrived positive sample. An unblinded operator will prepare the spiked samples and provide both the spiked and neat samples to a blinded operator for testing on the Anthrax LF Dx System. Thus, the blinded operator will receive samples that could either be spiked (positive) or neat (presumed negative) to preserve the blind.

Conditions

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Anthrax

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Healthy and Symptomatic Subjects

Blood sample testing on the Anthrax LF Dx System

Anthrax LF Dx System

Intervention Type DIAGNOSTIC_TEST

Lateral flow immunoassay for the detection of the LF biomarker in whole blood samples.

Interventions

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Anthrax LF Dx System

Lateral flow immunoassay for the detection of the LF biomarker in whole blood samples.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Male or female subject who is ≥18 years of age
* Subject is willing and able to provide Informed Consent for study participation, prior to any study mandated procedures
* For the healthy human population: Subject is in general good health with a stable health status based on medical history, and the investigator's clinical judgment defined as:

* No acute medical conditions that require the use of systemic prescription medications in the last 30 days and
* Any chronic medical diagnoses/conditions should be stable for the last 30 days (no hospitalizations, emergency room (ER), or urgent care for condition). This includes no change in chronic prescription medication, dose, or frequency as a result of deterioration of the chronic medical diagnosis/condition in the 30 days before enrollment.
* For the symptomatic human population:

* Current symptoms consistent with cold, flu or other bronchial and symptomatic infections. The subject must currently (day of consent) have at least one of the following symptoms: fever, chills, chest discomfort, shortness of breath, cough, dizziness/confusion, nausea, headache, sweats, fatigue, or body aches.

Exclusion Criteria

* Subject has inclusion symptoms and tests positive for COVID-19.
* Subject has previously enrolled in this study, or subject has previously failed screening for this study.
* Subject has any medical or social or psychiatric condition(s) or current substance abuse that, in the opinion of the investigator, would preclude the subject's ability to provide informed consent/assent, or to comply with the study requirements.
* Currently enrolled in an investigational drug or device clinical study in which the primary endpoint has not occurred or occurred within the last 30 days.
* Subject is a nursing home resident.
* Subject is a prisoner.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Department of Health and Human Services

FED

Sponsor Role collaborator

SRI International

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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WellNow Urgent Care and Research

Cincinnati, Ohio, United States

Site Status

WellNow Urgent Care and Research

Columbus, Ohio, United States

Site Status

WellNow Urgent Care and Research

Dayton, Ohio, United States

Site Status

Countries

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United States

Other Identifiers

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4650.367

Identifier Type: -

Identifier Source: org_study_id