Lyme Disease
Conditions
Keywords
Borrelia, spirochetes, culture, immunostaining
Brief summary
This study will evaluate Advanced Laboratory Services Borrelia diagnostic test by culturing Borrelia spirochetes from human serum in subjects with early or late Lyme disease. This is an 8 month study. Subjects entering the study will have two blood samples collected one month apart if they have early Lyme disease and one blood sample collected if they have late Lyme disease. Subjects who sign an IRB-approved consent form and meet the inclusion and exclusion criteria will be entered into the study. Subjects will be assigned a subject number upon entry and this number will be retained throughout the study.
Interventions
DEVICEBorrelia Diagnostic Test
The ALSI BDT is a high-yield in vitro cultivation method for Borrelia burgdorferi from venous whole blood samples.
Sponsors
Advanced Laboratory Services, Inc.
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
1. Subject must provide written informed consent prior to the conduct of any study-related procedures. 2. Male or female subjects who are at least 18 years of age. 3. Subjects are suspected to have early Lyme disease based on the following criteria: Signs, symptoms and clinical history consistent with early-stage Lyme disease. Subjects must have a medical practitioner-diagnosed erythema migrans (EM) rash and should have systemic symptoms indicative of disseminated infection. Symptoms may include fever, headache, fatigue, myalgias, arthralgias, and stiff neck. Paired acute and convalescent titers will be drawn (first draw at time of initial visit and second draw 4 weeks later) or, 4. Subjects are suspected to have late Lyme disease based on the following criteria: Signs, symptoms and clinical history consistent with late stage Lyme disease, including but not limited to disseminated rash, arthritis, meningitis, facial palsy, or carditis. 5. Subjects must be willing and have the ability to safely have the required quantity of blood drawn for the study at the discretion of the investigator. 6. Subjects must have blood samples freshly collected (no supplemental frozen samples) and the samples must reach ALSI's laboratory on a weekday and within 24 hours of being drawn. \---
Exclusion criteria
1. Early Lyme disease: Subjects without an EM rash or do not have symptoms recognized as being associated with Lyme disease. 2. Exposure to antibiotics of any type during the 6 weeks prior to the initial blood sample collection. 3. Immune deficiency significant enough to render serological tests less reliable. 4. The subject is unwilling or unable to safely have the required quantity of blood drawn for this study. 5. Subjects who are not able to understand all of the requirements of the study or unable to give informed consent and/or comply with all aspects of the evaluation. 6. Subjects that have any other condition or situation which, in the opinion of the investigator, would make the subject unsuitable for enrollment or could interfere with the subject participating in and completing the study. 7. Subjects that have undergone testing for Lyme disease within the past year. 8. Subjects that have a prior diagnosis of Lyme disease.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diagnostic accuracy of the Advanced Laboratory Services, Inc. (ALSI) Borrelia Diagnostic Test (BDT) culture, for positive and negative predictive value, as compared to conventional microbiological methods. | Baseline to 16 weeks |
Secondary
| Measure | Time frame |
|---|---|
| Diagnostic accuracy of ALSI culture for early-onset presentation of Lyme disease, as measured by positive and negative predictive value. | Baseline to 16 weeks |
| Diagnostic accuracy of ALSI culture for late-onset presentation of Lyme disease, as measured by positive and negative predictive value. | Baseline to 16 weeks |
Countries
United States
Outcome results
None listed