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Lyme DiseaseOHTICKSNCT03501407

Understanding Tick-borne Diseases

An observational study of Lyme Disease, run by Institut Pasteur at 1 site in France.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Ticks are the major arthropod vectors transmitting pathogenic agents to humans and domestic animals in Europe, and currently, the incidence of tick-borne disease is rising. The most common European human tick-borne disease is Lyme borreliosis, with an estimated 90 000 new cases every year (compared to 300 000 new… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Lyme Disease
What is being tested?
Blood samples and skin biopsy
How many people
130 participants
Where
1 siteFrance
Study dates
1 Jun 2018to Jun 2020
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: patient with and without an erythema migrans after ticks bite

Who may be able to join

  • Age≥18 years
  • Erythema migrans
  • Registered with social security
  • informed and written consent
  • Age≥18 years
  • Confirmed tick bite within the last 6 months prior to the appearance of inflammatory joint disease verified via joint imaging (MRI or ultrasound)
Show all 9Show fewer
  • and/or cerebrospinal fluid cyto-chemical anomalies (meningitis,albuminocytological dissociation)
  • Registered with social security
  • informed and written consent

Who cannot join

  • Pregnant women
  • Immunocompromised patients (undergoing chemotherapy, corticotherapy, or biotherapy)
  • Chronic inflammatory disease
  • Systemic disease
  • Pregnant women
  • Immunocompromised patients (undergoing chemotherapy, corticotherapy, or biotherapy)
  • Chronic inflammatory disease
  • Systemic disease

Trial locations and contacts

1 site in 1 country.

Muriel Vayssier, PhD contact

France1 site, 1 recruiting
  • Centre Hospitalier Universitaire

    Besançon, 25030

    Catherine Chirouze, MD

    Recruiting

Other trials in France

About this study

Official title: One-Health Approach to Identify Threat Posed by Tick-borne Pathogens Responsible of Unexplained Infectious Syndrome in Humans

Ticks are the major arthropod vectors transmitting pathogenic agents to humans and domestic animals in Europe, and currently, the incidence of tick-borne disease is rising. The most common European human tick-borne disease is Lyme borreliosis, with an estimated 90 000 new cases every year (compared to 300 000 new cases in the United States annually). This disease is initially clinically diagnosed by the presence of migrating erythema following a tick bite, which is then subsequently confirmed by serological tests. In parallel with classic Lyme borreliosis cases, tick-bitten patients can also present with polymorphic and on-specific clinical symptoms (asthenia, fever, myalgia, etc. …) for which there is no known etiological diagnosis. It is extremely difficult to determine the proportion of tick-bitten patients with these symptoms compared to patients which have actually contracted Lyme disease, although it is estimated that 50% of fevers following a tick bite have an unknown infectious origin.

Typical tick habitats are woodlands, prairies, pastures, and gardens. Ticks are extremely sensitive to environmental fluctuations, which are often brought about by human socio-economic changes, thus tick-borne diseases are excellent candidates for emergence. Consequently, it is incontestable that tickborne diseases pose a significant threat to our society. In addition to improving diagnostic techniques, one of the major hurdles relates to improving public and health professional knowledge about tick disease risk. The battle against tick-borne diseases is based on relatively simple prevention measures, and their effectiveness is immeasurably improved when citizens are more informed and involved.Therefore, a multidisciplinary project, bringing together veterinarians, doctors, scientists, and consultant sociologists has been designed to create a global "One Health" approach to tick-borne diseases. Specific scientific project objectives are to (1) detect, identify, and isolate new microorganisms-both unknown or unexpected-from patients or animals suffering from unexplainable symptoms following tick bites; (2) to demonstrate tick competence in their ability to transmit these agents; and (3) to generate concrete recommendations to improve tick-borne disease management.

Conditions
Lyme Disease
Being tested
Blood samples, skin biopsy
Medical subject headings
Lyme Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Blood samplesDiagnostic test

    1 or 2 blood samples will be collected from the patient.

  • skin biopsyDiagnostic test

    A skin biopsy will be performed on the periphery of the erythema migrans

Study groups in NCT03501407
Study groupRoleWhat they receive
Erythema migransPatients for whom a diagnosis of acute phase of Lyme disease is done on the basis of the existence of an erythema migrans and a tick bite history in the days preceding the occurrence of erythema (before and after antibiotics treatment) will be recruited
Receives: Diagnostic Test: Blood samples; Diagnostic Test: skin biopsy
No-erythema migransPatients with unspecific symptoms (the most common symptoms being: headache, arthralgia, myalgia, febrile episode) appearing within 3 months after a tick bite will be recruited
Receives: Diagnostic Test: Blood samples

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Isolate new microorganisms-both unknown or unexpected-from patients suffering from unexplainable symptoms following tick bites

    Measured: up to 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Apr 2018
  2. Study start1 Jun 2018
  3. Primary completionJun 2019 (estimated)
  4. Study completionJun 2020 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
130 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03501407
Sponsor's protocol ID
2017-002
Acronym
OHTICKS
Status last verified
Apr 2018
First submitted
30 Mar 2018
Last updated
15 Aug 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Lyme Disease, run by Institut Pasteur at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 15 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact cecile Artaud (+33144389241, cecile.artaud@pasteur.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Isolate new microorganisms-both unknown or unexpected-from patients suffering from unexplainable symptoms following tick bites (time frame: up to 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Aug 2018.

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