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Completed

NCT Number: NCT03873974

Performance Evaluation of the DualDur In Vitro Diagnostic System in the Diagnosis of Lyme Borreliosis

The clinical data from the clinical trial will be used to assess the performance, sensitivity and specificity of the experimental DualDur In Vitro Diagnostic System.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

MedUni Vienna,University Hospital Internal Medicine I, Clinical Dept. for Infections, Vienna, Austria

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About this study

The clinical data from the clinical trial will be used to assess the performance, sensitivity and specificity of the experimental DualDur In Vitro Diagnostic System.

  • The sensitivity of the DualDur in Vitro Diagnostic System will be examined in subjects whose physician indicates drug therapy for Lyme borreliosis (positive arm).
  • The specificity of the DualDur in Vitro Diagnostic System will be examined in healthy volunteers declared Lyme borreliosis negative by their physician and all the standard laboratory tests prove that they are free of Lyme borreliosis (negative arm).

The diagnostic system developed by Lyme Diagnostics Ltd. is planned for application in the diagnosis during the entire life cycle of Lyme borreliosis.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

I. Positive trial arm

I.1. Inclusion Criteria:

  • Man or female subjects over 18 years of age
  • Treatment-naive or treatment-experienced subjects with Lyme borreliosis, whose physician indicates drug therapy for Lyme borreliosis.
  • Subjects capable of reading, understanding, and observing the requirements of the clinical trial, who sign the Patient Information Leaflet and Informed Consent Form approved by the Competent Authority and the Ethics Committee.

I. 2. Exclusion Criteria:

  • Man or female subjects over 80 years of age
  • Pregnancy, breastfeeding
  • History of any complication related to previous blood sampling
  • Coagulation and/or bleeding disorders
  • Anticoagulant therapy
  • Acute, life-threatening condition
  • Participation in another clinical trial
  • The patient is under antibiotic therapy, or received such treatment in the preceding 3 months
  • The patient is currently taking or has taken in the preceding 6 months dietary supplements of herbal origin, or medicinal herbs as first-line or add-on treatments for Lyme borreliosis
  • In the event the patient has previously been treated for Lyme borreliosis, then this treatment took place less than 6 months before blood sampling.
  • In the preceding 6 months, the patient used an electronic device operating along the principle of electromagnetic (i.e. electric or magnetic) fields - such as bioresonance, pulsed magnetic field, etc. - as add-on treatment for Lyme borreliosis.

II. Negative trial arm

II.1. Inclusion Criteria:

  • Man or female subjects over 18 years of age
  • Asymptomatic healthy volunteer subjects without acute or chronic symptoms of Lyme borreliosis, who are free of Lyme borreliosis by the indication of all standard laboratory tests, and who are willing to take part in a comprehensive medical examination and related blood sampling.
  • Subjects capable of reading, understanding, and observing the requirements of the trial, who sign the Patient Information Leaflet and Informed Consent Form approved by the Competent Authority and the Ethics Committee.

II. 2. Exclusion Criteria:

  • Man or female subjects over 80 years of age
  • Pregnancy, breastfeeding
  • History of any complication related to previous blood sampling
  • Coagulation and/or bleeding disorders
  • Anticoagulant therapy
  • Participation in another clinical trial
  • Lyme borreliosis diagnosed previously, at any time during the life of the subject
  • The subject has received any treatment for Lyme borreliosis (medicinal products, dietary supplements, medicinal plants, electronic devices, etc.) during his/her life
  • The patient is under antibiotic therapy, or received such treatment in the preceding 3 months
  • The occupation of the subject is either a forester or a hunter

Treatment and study plan

DualDur dark-field microscopic test

Diagnostic Test

Morphologically identify the presence of Borrelia burgdorferi sensu lato bacteria (in a broader sense) which are present in the body fluid, hence to verify Borreliosis. Manual evaluation.

DualDur dark-field automatic microscopic test

Diagnostic Test

Morphologically identify the presence of Borrelia burgdorferi sensu lato bacteria (in a broader sense) which are present in the body fluid, hence to verify Borreliosis. Software evaluation.

Western blot IgM and IgG

Diagnostic Test

Borrelia qualitative in vitro test in order to detect and reliably identify IgG and IgM antibodies against Borrelia burgdorferi from human serum or plasma.

Bózsik Western blot IgM and IgG

Diagnostic Test

Borrelia qualitative in vitro test in order to detect and reliably identify IgG and IgM antibodies against Borrelia burgdorferi from human serum or plasma.

enzyme-linked immunosorbent assay (ELISA) IgM and IgG

Diagnostic Test

Standard ELISA test for Lyme borreliosis.

DualDur Polymerase chain reaction

Diagnostic Test

DualDur PCR test for Lyme borreliosis.

Primary outcomes

  1. Primary endpoint, 1 (sensitivity of the experimental DualDur in Vitro Diagnostic System)

    Time frame: Laboratory samples evaluated within 72-144 hours of sampling.

    The sensitivity of the experimental DualDur in Vitro Diagnostic System in the positive arm, based on medical diagnosis

  2. Primary endpoint, 2 (specificity of the experimental DualDur In Vitro Diagnostic System)

    Time frame: Laboratory samples evaluated within 72-144 hours of sampling.

    The specificity of the experimental DualDur In Vitro Diagnostic System in the negative arm, based on medical diagnosis and all the standard laboratory test results

Secondary outcomes

  1. Secondary endpoint, 1 (sensitivity of the experimental DualDur in Vitro Diagnostic System)

    Time frame: Laboratory samples evaluated within 72-144 hours of sampling.

    • The sensitivity of the experimental DualDur in Vitro Diagnostic System, based on medical diagnosis (Lyme borreliosis positive) and direct/indirect diagnostic methods.
  2. Secondary endpoint, 2 (Pairwise comparison of the sensitivity of the experimental DualDur in Vitro Diagnostic System and of the direct/indirect diagnostic methods)

    Time frame: Laboratory samples evaluated within 72-144 hours of sampling.

    Pairwise comparison of the sensitivity of the experimental DualDur in Vitro Diagnostic System and of the direct/indirect diagnostic methods

Other outcomes

  1. Tertiary endpoint (Validation of the image evaluation)

    Time frame: Software evaluation done at planned study completion date, February 2020.

    Validation of the image evaluation software applied in the diagnosis of Lyme borreliosis by dark field microscopy.

Sponsors and collaborators

Lead sponsor

Lyme Diagnostics Ltd.

Industry

Collaborators

  • Pharmahungary Group

Registry information

Official study title

Multicentre Clinical Trial to Assess the Performance of the DualDur In Vitro Diagnostic System in the Diagnosis of Lyme Borreliosis From Blood Samples of Subjects Who Are Either Pharmacotherapy-naive or Treatment-experienced and Their Physician Indicates Drug Therapy for Lyme Borreliosis

Important dates

Study start
2019
Primary completion
2019
Study completion
2019
First posted
Mar 14, 2019
Registry last updated
Mar 2, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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