SWEtick - a Prospective Multicenter Study of Tick-borne Diseases in Sweden

NCT ID: NCT06781008

Last Updated: 2025-06-22

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

RECRUITING

Total Enrollment

500 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-09-01

Study Completion Date

2035-12-31

Brief Summary

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The purpose of the SWEtick project is to increase the knowledge of the various clinical presentations of emerging tick-borne diseases (eTBD), to assess their importance for human health, to develop and validate laboratory methods for diagnosis of eTBD, and to develop recommendations for knowledge-driven management of patients with suspected eTBD within the Swedish healthcare system.

Detailed Description

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Conditions

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Tick-Borne Diseases

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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TBD

Patients with confirmed tick-borne disease

No interventions assigned to this group

Non-TBD

Patients investigated for suspected tick-borne disease but diagnosed with another condition (tick-borne disease excluded)

No interventions assigned to this group

Control group CNS

Patients obtaining spinal anasthesia in conjunction with knee or hip replacement surgery due to arthrosis

No interventions assigned to this group

Control group arthritis

Patients with autoinflammatory joint disease

No interventions assigned to this group

Control group healthy

Blood donors

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Clinical suspicion of tick-borne disease (physician's assessment based on medical history, symptoms, clinical findings and sometimes laboratory results)

Exclusion Criteria

* Incapacitated to understand the study information and make decisions (adults and adolescents \>15 years)
Minimum Eligible Age

1 Year

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Region Östergötland

OTHER

Sponsor Role collaborator

Region Kalmar County

UNKNOWN

Sponsor Role collaborator

Region Dalarna

UNKNOWN

Sponsor Role collaborator

FORSS - The Research Council of South-Eastern Sweden

UNKNOWN

Sponsor Role collaborator

ALF Grants, Region Östergötland

UNKNOWN

Sponsor Role collaborator

Linkoeping University

OTHER_GOV

Sponsor Role collaborator

Anna J Henningsson

OTHER_GOV

Sponsor Role lead

Responsible Party

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Anna J Henningsson

Senior Consultant, Senior Associate Professor

Responsibility Role SPONSOR_INVESTIGATOR

Locations

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Department of Paediatrics, Eksjö Hospital

Eksjö, Region Jönköping County, Sweden

Site Status NOT_YET_RECRUITING

Department of Infectious Diseases, County Hospital Ryhov

Jönköping, Region Jönköping County, Sweden

Site Status RECRUITING

Department of Infectious Diseases, Kalmar County Hospital

Kalmar, Region Kalmar County, Sweden

Site Status RECRUITING

Department of Infectious Diseases, Linköping University Hospital

Linköping, Region Östergötland, Sweden

Site Status RECRUITING

Department of Infectious Diseases, Vrinnevi Hospital

Norrköping, Region Östergötland, Sweden

Site Status RECRUITING

Department of Paediatrics, Vrinnevi Hospital

Norrköping, Region Östergötland, Sweden

Site Status RECRUITING

Countries

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Sweden

Central Contacts

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Anna J Henningsson, Senior Associate Professor

Role: CONTACT

46 10 242 12 26

Johanna Sjöwall, Associate Professor (docent)

Role: CONTACT

46 10 104 08 94

Facility Contacts

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Henrik Hillerdal, M.D.

Role: primary

46 10 243 64 49

Olivia Arnsäter, Research nurse

Role: primary

+46 10 242 21 39

Karin Angré, Research nurse

Role: primary

46 70 406 78 62

Martina Sönnerbrandt, Research nurse

Role: primary

46 10 103 00 00

Annette Gustafsson, Research nurse

Role: primary

+46 10 104 32 60

Marie H. Lindgren, M.D.

Role: primary

46 10 103 00 00

References

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Henningsson AJ, Asgeirsson H, Hammas B, Karlsson E, Parke A, Hoornstra D, Wilhelmsson P, Hovius JW. Two Cases of Borrelia miyamotoi Meningitis, Sweden, 2018. Emerg Infect Dis. 2019 Oct;25(10):1965-1968. doi: 10.3201/eid2510.190416.

Reference Type BACKGROUND
PMID: 31538916 (View on PubMed)

Uhnoo I, Cars O, Christensson D, Nystrom-Rosander C. First documented case of human babesiosis in Sweden. Scand J Infect Dis. 1992;24(4):541-7. doi: 10.3109/00365549209052642.

Reference Type BACKGROUND
PMID: 1411322 (View on PubMed)

Eimer J, Fernstrom L, Rohlen L, Grankvist A, Loo K, Nyman E, Henningsson AJ, Haglund M, Hultqvist V, Sjowall J, Wenneras C, Schon T. Spiroplasma ixodetis Infections in Immunocompetent and Immunosuppressed Patients after Tick Exposure, Sweden. Emerg Infect Dis. 2022 Aug;28(8):1681-1685. doi: 10.3201/eid2808.212524.

Reference Type BACKGROUND
PMID: 35876734 (View on PubMed)

Bjoersdorff A, Berglund J, Kristiansen BE, Soderstrom C, Eliasson I. [Varying clinical picture and course of human granulocytic ehrlichiosis. Twelve Scandinavian cases of the new tick-borne zoonosis are presented]. Lakartidningen. 1999 Sep 29;96(39):4200-4. Swedish.

Reference Type BACKGROUND
PMID: 10544585 (View on PubMed)

Nilsson K, Elfving K, Pahlson C. Rickettsia helvetica in patient with meningitis, Sweden, 2006. Emerg Infect Dis. 2010 Mar;16(3):490-2. doi: 10.3201/eid1603.090184.

Reference Type BACKGROUND
PMID: 20202426 (View on PubMed)

Nilsson K, Lindquist O, Pahlson C. Association of Rickettsia helvetica with chronic perimyocarditis in sudden cardiac death. Lancet. 1999 Oct 2;354(9185):1169-73. doi: 10.1016/S0140-6736(99)04093-3.

Reference Type BACKGROUND
PMID: 10513711 (View on PubMed)

Wenneras C, Wass L, Bergstrom B, Grankvist A, Lingblom C. Ten years of detecting Neoehrlichia mikurensis infections in Sweden: demographic, clinical and inflammatory parameters. Eur J Clin Microbiol Infect Dis. 2024 Nov;43(11):2083-2092. doi: 10.1007/s10096-024-04909-5. Epub 2024 Aug 13.

Reference Type BACKGROUND
PMID: 39136831 (View on PubMed)

Quarsten H, Henningsson A, Krogfelt KA, Strube C, Wenneras C, Mavin S. Tick-borne diseases under the radar in the North Sea Region. Ticks Tick Borne Dis. 2023 Jul;14(4):102185. doi: 10.1016/j.ttbdis.2023.102185. Epub 2023 Apr 26.

Reference Type BACKGROUND
PMID: 37116420 (View on PubMed)

Henningsson AJ, Aase A, Bavelaar H, Flottorp S, Forsberg P, Kirkehei I, Lovmar M, Nilsson K, Nyman D, Ornstein K, Sjowall J, Skogman BH, Tjernberg I, Aaberge I. Laboratory Methods for Detection of Infectious Agents and Serological Response in Humans With Tick-Borne Infections: A Systematic Review of Evaluations Based on Clinical Patient Samples. Front Public Health. 2021 Sep 20;9:580102. doi: 10.3389/fpubh.2021.580102. eCollection 2021.

Reference Type BACKGROUND
PMID: 34616701 (View on PubMed)

Related Links

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https://liu.se/forskning/fastingburna-infektioner/swetick

General study information and contact details

Other Identifiers

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EPM 2022-05330-01

Identifier Type: -

Identifier Source: org_study_id

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