ClinicalTrials.gg
CompletedNCT03238274Updated Mar 20, 2018

Sofia 2 Lyme FIA Whole Blood Clinical Study

An observational study in Borrelia; Infection, Burgdorferi (Erythema Chronicum Migrans), sponsored by Quidel Corporation. Completed at 11 sites in United States. Open to participants aged 1 Year and older. Per ClinicalTrials.gov, last updated 2018-03-20.

Sponsored by Quidel Corporation · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
597
Ages
1 Year and older
Sex
All
01

Study summary

The objective of this study is to demonstrate the clinical performance of the Sofia® 2 analyzer and Sofia Lyme FIA test in the CLIA waived test environment in comparison to Comparator Method(s) and/or an FDA cleared predicate test(s) using matched finger-stick, whole blood and serum from symptomatic subjects.

Read the detailed description

The objective of this study is to demonstrate the clinical performance of the Sofia® 2 analyzer and Sofia Lyme FIA test in the CLIA waived test environment in comparison to Comparator Method(s) and/or an FDA cleared predicate test(s) using matched finger-stick, whole blood and serum from symptomatic subjects. The finger-stick and venous whole blood specimens will be tested by CLIA waived test operators. The matched plasma (from the leftover whole blood) and serum specimens will be sent to a separate reference laboratory for testing to compare the matched specimen using the Comparator Method(s) and/or an FDA-cleared predicate test(s). The results of this study may be used to support a 510(k) and/or CLIA-Waiver submission for testing whole blood sample types.

02

Conditions studied

  • Borrelia; Infection, Burgdorferi (Erythema Chronicum Migrans)
03

In context

Glossitis, Benign Migratory

25 studies on the registry are indexed under Glossitis, Benign Migratory; 4 are open to participants now.

This study's enrollment of 597 is above the median of 245 across 12 observational studies indexed under Glossitis, Benign Migratory.

Browse Glossitis, Benign Migratory studies →

Lead sponsor

Quidel Corporation is the lead sponsor of 10 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Year and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Known or suspected exposure or tick-bite from an endemic area prior to onset of symptoms

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.

Inclusion criteria

  • Arm 1 - Prospective symptomatic subjects, must have had a known or suspected exposure or tick-bite from an endemic area prior to onset of symptoms, and be currently exhibiting the following:
  • The physician determines that the subject has an expanding erythema migrans (EM) lesion or "bulls-eye rash" with evidence of clearing in the center and has requested 2 tier serological testing or prescribed a ≥10 day course of antibiotics such as doxycycline in subjects > 8 years old or amoxicillin, cefuroxime or doxycycline in subjects ≤8 years of age:

Or

  • The physician must observe current symptoms, including:

At least three (3) of the listed acute stage symptoms listed:

  • fatigue
  • night sweats
  • chills
  • fever
  • headache
  • arthralgia
  • mildly stiff neck
  • myalgia i. one or more symptoms a. through h. are determined to be intermittent

Or,

  • at least one (1) of the following current conditions:
  • recurrent, brief attacks (weeks/months) of objective joint swelling in one or more joints, sometimes followed by chronic arthritis in one or a few joints,
  • lymphocytic meningitis
  • cranial neuritis (partial facial palsy and may be bilateral)
  • radiculoneuropathy
  • encephalomyelitis
  • acute onset of high-grade (2nd or 3rd degree) atrioventricular conduction defects that resolve in days to weeks, sometimes associated with myocarditis

In addition, the physician must be sufficiently confident in the possibility of Lyme disease to have requested two-tier diagnostic testing and/or prescribed a ≥10 day course of antibiotics such as doxycycline in patients > 8 years old or amoxicillin, cefuroxime or doxycycline in patients ≤8 years of age.

Arm 2 - Previously diagnosed with Lyme disease / confirmed case of Lyme disease: Within the past 16 months, a physician must have previously diagnosed the subject based on the presence of an EM rash or based on symptoms and confirmed by laboratory findings as outlined in the CDC two Tier Testing algorithm. A copy of the subject's medical record documenting the diagnosis must be obtained, and kept as source documentation at the enrolling site.

Arm 3 - Previously diagnosed with Lyme disease / confirmed case of Lyme disease: Within the past 17 to 50 months, a physician must have previously diagnosed the subject based on the presence of an EM rash or based on symptoms and confirmed by laboratory findings as outlined in the CDC two Tier Testing algorithm. A copy of the subject's medical record documenting the diagnosis must be obtained, and kept as source documentation at the enrolling site.

Exclusion criteria

Exclusion Criteria:

  • Unable to understand and consent to participation; for minors this includes parent or legal guardian.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
597 participants (actual)
Patient registry
No

Groups and cohorts

  • Arm 1

    Arm 1 is a multi-site, single visit, prospective clinical study where subjects will be enrolled based on a physician's assessment of current Lyme specific symptoms from recent contact with a tick.

    Device: Sofia 2 Lyme FIA testing

  • Arm 2

    Arm 2 will consist of subjects selected from a pool of patients that were previously determined to have Lyme disease either by the presence of the diagnostic rash (erythema migrans) or through laboratory findings and physician diagnosis based on patient symptoms. In this Arm the site may recruit by contacting subjects previously diagnosed with Lyme disease no longer than 16 months post diagnosis and no earlier than 1 week post diagnosis.

    Device: Sofia 2 Lyme FIA testing

  • Arm 3

    Arm 3 will consist of subjects selected from a pool of patients that were previously determined to have Lyme disease either by the presence of the diagnostic rash (erythema migrans) or through laboratory findings and physician diagnosis based on patient symptoms. In this Arm the site may recruit by contacting subjects previously diagnosed with Lyme disease between 17 months and 50 months post diagnosis. For the subject to be enrolled, a physician must have diagnosed the subject to have Lyme disease based on clinical symptoms.

    Device: Sofia 2 Lyme FIA testing

Interventions

  • DeviceSofia 2 Lyme FIA testing

    IVD testing of whole blood or serum/plasma to aid in the detection of anti-B. burgdorferi IgG / IgM antibody

06

What researchers measure

Primary outcomes

  1. Detection of anti-B. burgdorferi IgG / IgM antibody

    Accurate detection of presence or absence of anti-B. burgdorferi IgG / IgM antibody

    Time frame: 15 minutes

07

Study locations

11 sites
  • NECCR Primacare Research, LLC
    Fall River, Massachusetts 02721, United States
  • Main Road Family Medicine
    South Westport, Massachusetts 02790, United States
  • Essentia Institute of Rural Health
    Duluth, Minnesota 55805, United States
  • Regional Clinical Research
    Endwell, New York 13760, United States
  • Altoona Center for Clinical Research
    Duncansville, Pennsylvania 16635, United States
  • Harleysville Medical Associates
    Harleysville, Pennsylvania 19438, United States
  • Lincoln Primary Care
    Lincoln, Rhode Island 02865, United States
  • The Miriam Hospital
    Providence, Rhode Island 02906, United States
  • Center for Medical Research, LLC
    Providence, Rhode Island 02908, United States
  • Ocean State Primary Care
    Westerly, Rhode Island 02891, United States
  • Marshfield Clinic Research Institute
    Marshfield, Wisconsin 54449, United States
08

References and documents

Individual participant data

Plan to share: No — There is no plan or intention to share participant data with others.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 20, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03238274
Lead sponsor
Quidel Corporation
Responsible party
Sponsor
First posted
Aug 3, 2017
Start date
Jun 6, 2017
Primary completion
Dec 15, 2017
Completion
Dec 15, 2017
Last update
Mar 20, 2018

Study contacts

Tom Clement
study director · Quidel Corporation

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2018. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion