Six Versus Two Weeks Treatment With Doxycycline in Lyme Neuroborreliosis
|ClinicalTrials.gov Identifier: NCT02553473|
Recruitment Status : Enrolling by invitation
First Posted : September 17, 2015
Last Update Posted : October 13, 2017
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: Improvment 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 Sørlandet Hospital and 5-10 other 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|
|Study Start Date :||October 2015|
|Estimated Primary Completion Date :||September 2019|
|Estimated Study Completion Date :||October 2020|
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 ]
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02553473
|Principal Investigator:||Anne Marit Solheim, M.D||Sørlandet hospital HF|