Six Versus Two Weeks Treatment With Doxycycline in Lyme Neuroborreliosis
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|ClinicalTrials.gov Identifier: NCT02553473|
Recruitment Status : Active, not recruiting
First Posted : September 17, 2015
Last Update Posted : December 29, 2020
Comparison of Doxycycline 200 mg once daily for six weeks versus Doxycycline 200 mg once daily for two weeks + placebo for four weeks. Primary objective is to answer the question "is two weeks doxycycline treatment (currently suggested treatment) at least as effective as six weeks doxycycline treatment in Lyme Neuroborreliosis?".Key secondary objectives are to provide a better understanding of the pathogenesis and long-term complaints, and to search for new biomarkers in Lyme Neuroborreliosis (LNB) by collecting clinical data, blood, and cerebrospinal fluid (CSF) in a biobank for future research
Primary endpoint: Improvement on a composite clinical score from inclusion to six months after ended treatment defined as clinical score at inclusion minus clinical score at six months.
Secondary endpoints: Improvement on a composite clinical score 12 months after ended treatment. Fatigue Severity Scale (FSS),Patient Health Questionnaire (PHQ-15), Short Form 36 (SF-36) and blood and CSF findings at inclusion, after 6 and 12 months.
The study design is a multicenter, non-inferiority, randomized, penta-blind, placebo-controlled trial. 120 patients will be included from approximately 8 Norwegian hospitals.
Main inclusion criteria are neurological symptoms suggestive of LNB without other obvious reasons, one or both of a) Cerebrospinal fluid pleocytosis (>5 leukocytes/mm3) b) intrathecal Bb antibody Production and signed informed consent. Safety assessments during the trial: Comparison of clinical outcome six months after end of treatment between the two treatment groups. Subjective experiences and blood tests including hematology and biochemistry for four weeks after ended treatment.
|Condition or disease||Intervention/treatment||Phase|
|Neuroborreliosis, Borrelia Burgdorferi||Drug: Doxycycline Drug: Placebo||Phase 3|
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||250 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)|
|Official Title:||Six Versus Two Weeks Treatment With Doxycycline in Lyme Neuroborreliosis; a Multicenter, Non-inferiority, Penta-blind, Randomized Trial|
|Actual Study Start Date :||October 2015|
|Actual Primary Completion Date :||August 2020|
|Estimated Study Completion Date :||March 2021|
Active Comparator: Doxycycline for 6 weeks
Doxycycline 200 mg once daily for six weeks
Placebo Comparator: Doxycycline for 2 weeks + placebo
Doxycycline 200 mg once daily for two weeks + placebo for four weeks.
- Improvement in composite clinical score at six months after end of treatment [ Time Frame: six months ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02553473
|Principal Investigator:||Anne Marit Solheim, M.D||Sørlandet hospital HF|