Head-to-head trial aims to find best way to save sight in IIH patients
NCT ID NCT07440277
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares two common procedures—CSF shunting and dural venous sinus stenting—to see which better preserves vision in adults with idiopathic intracranial hypertension (IIH) who are at risk of permanent sight loss. About 80 participants will be randomly assigned to one of the two procedures and followed for two years. The goal is to determine which treatment is more effective and cost-effective for saving vision.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 80 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2023
- Expected to finish
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May 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 63 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Diagnosis of IIH by the IIH consensus guidelines with papilloedema and at risk of visual loss. 2. Presence of papilloedema (Frisén grade ≥ 3) in at least one eye 3. Age 18 to \< 64 years at the time of consent. 4. Patients must be suitable for and willing to proceed with both CSF shunting (VP or Lumboperitoneal shunts only) and DVSS. 5. Able to provide written informed consent. Exclusion Criteria: 1. Presence of current venous sinus thrombosis on diagnostic brain imaging by either MRI, MRV or CTV 2. Previous surgery for IIH including, optic nerve sheath fenestration, CSF shunting procedures, sub-temporal decompression and DVSS. 3. Previous bariatric surgery within the last 3 months 4. Patients with a past ophthalmic history, except refraction error, affecting the eligible eyes (study eyes) that could affect the vision. 5. Patient is, at the time of signing the informed consent, a user of recreational or illicit drugs (including marijuana) or has had a recent history (within the last year) of drug or alcohol abuse or dependence, in the opinion of the investigator. 6. History of any clinically significant disease or disorder which, in the opinion of the investigator, may either put the subject at risk because of participation in the study, or influence the results or the subject's ability to participate in the study. 7. Have participated in any other interventional study within 30 days prior to the screening visit (of note participation in the IIH Life database or other observational studies will not prevent enrolment to this study). 8. Previous randomisation for treatment in the present study. 9. Pregnant. 10. Absolute or serious contraindication to standard anti-thrombotic regimen peri and post stenting. 11. Secondary causes of raised intracranial pressure. (Refer to Protocol appendix 3 for additional information.) 12. History of significant documented iodine-based contrast allergy. 13. History of documented allergy to nitinol or nickel. 14. Absolute or serious contraindication for general anaesthesia. 15. Previous diagnosis of a hypercoagulable state (Factor V Leiden, Protein C or S deficiency, Anticardiolipin antibodies, Lupus anticoagulant, B2-glycoprotein-1 antibodies, or Hyperhomocysteinaemia). 16. Currently requiring full anticoagulation for other medical reasons, such as atrial fibrillation, artificial valves, deep vein thrombosis or pulmonary embolism. 17. Documented prior non-traumatic intracranial haemorrhage. 18. History of deep vein thrombosis or pulmonary embolism (within the last 24 months). 19. History of severe carotid atherosclerotic disease. 20. History of heart failure, dilated cardiomyopathy or congenital heart disease, etc. that are assessed as at high thrombotic risk. 21. Presence of intracranial vascular malformation considered clinically symptomatic (current or within 24 months). 22. Anatomical anomaly of the venous sinus which would prevent safe catheterisation and stenting (e.g. multi-channel sinus).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
15 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Addenbrooke's Hospital
RECRUITINGCambridge, United Kingdom
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Bristol Eye Hospital
NOT_YET_RECRUITINGBristol, United Kingdom
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King's College Hospital
RECRUITINGLondon, United Kingdom
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Leeds General Infirmary
RECRUITINGLeeds, United Kingdom
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National Hospital for Neurology and Neurosurgery
RECRUITINGLondon, United Kingdom
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Princess Alexandra Eye Pavillion
RECRUITINGEdinburgh, United Kingdom
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Queen Elizabeth University Hospital
RECRUITINGGlasgow, United Kingdom
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Queen's Medical Centre
RECRUITINGNottingham, United Kingdom
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Royal Hull Infirmary
RECRUITINGHull, United Kingdom
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Royal Victoria Infirmary
RECRUITINGNewcastle, United Kingdom
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Southampton General Hospital
RECRUITINGSouthampton, United Kingdom
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Southmead Hospital
NOT_YET_RECRUITINGBristol, United Kingdom
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Sunderland Eye Infirmary
RECRUITINGSunderland, United Kingdom
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The Queen Elizabeth Hospital
RECRUITINGBirmingham, United Kingdom
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University Hospital of Wales
RECRUITINGCardiff, United Kingdom
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