About this trial
Idiopathic intracranial hypertension (IIH) is a condition of unknown etiology, primarily affecting overweight females of childbearing age. Typically, patients experience headache and visual symptoms due to increased intracranial pressure (ICP) and papilledema. The diagnosis is difficult, and outcomes vary from no sequelae to blindness or chronic headaches. No clear prognostic indicators exist. Treatment consists of medication, weight loss, and possibly surgical intervention.There is an unmet need of defining biomarkers with prognostic or diagnostic value and defining predictors of a poor outcome.
This project is a prospective, population-based cohort study including clinical data and a biobank (blood samples and cerebrospinal fluid).
The investigator's primary aim is to identify biomarkers of diagnostic or prognostic value and to create a clinical IIH database. The clinical database will answer questions about patient characteristics at baseline and during follow-up, identify predictors of outcome, and help create a standardized programme for follow-up and
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Able to and willing to provide informed consent
More than 18 years of age
Suspicion of IIH (based on clinical evaluation by neurologist or opthalmologist)
Disqualifiers
None
Trial population
All admitted or out-patient referrals where IIH is suspected. Patients will be identified and included consecutively once there is a clinical suspicion of IIH, if they wish to participate. Most often IIH will be suspected in a typical patient (female, child-bearing age, overweight) with either bilateral papiledema and normal neuro-imaging, high ICP by lumbar puncture or a new headache with associated visual disturbances or pulsatile tinnitus. All hospitals in the Capital Region of Denmark and the Southern Region of Denmark can participate and refer patients.
Trial design
Cohort
Prospective
Treatments tested in this trial
Standard treatment
Other interventionNo intervention, some patients have additional neuro-psychological testing.
Treatment groups
Trial outcomes
Primary outcomes
Biomarkers of IIH (diagnostic and prognostic)
Analyses of CSF and blood for protein-markers (method: Proteomics)
Visual status at conclusion of study
Assessment of visual fields
Visual status at conclusion of study
Assessment of OCT
Visual status at conclusion of study
Assessment of visual acuity
Secondary outcomes
Baseline characteristics related to poor outcome
Poor outcome is defined as either a.) Persistent visual field defects, decreased visual acuity after 12 months and or b.) Headache \>= 15 days per month after 12 months
Results of neuropsychological evaluations
Standard neuro-psychological tests
Treatment and follow-up
Length and type of treatment and follow-up
Baseline characteristics related to IIH diagnosis
Evaluation of disease presentation in the different sub-groups focusing on headache phenotype, visual disturbances and pulsatile tinnitus.
Sponsors and contacts
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Danish Headache Center
Lead sponsor
Odense University Hospital
Collaborator