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RecruitingNCT07098650HaemdallUpdated Aug 20, 2025

Haemdall: Developing a Quantitative MRI Biomarker of Infratentorial Superficial Siderosis of the Central Nervous System

An observational study in Superficial Siderosis, sponsored by Perspectum. Recruiting at 1 site in United Kingdom. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-08-20.

Sponsored by Perspectum · Observational

From the registry’s dates

  • Started Aug 2025; still recruiting 1 year 2 months later.
Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
50
Ages
18 Years and older
Sex
All
01

Study summary

Haemdall: Using Medical Imaging to measure Brain Iron in Superficial Siderosis.

This study is looking at a new way of using MRI scans to potentially measure the amount of iron on the surface of the brain. Iron build up in the brain is linked to how superficial siderosis develops. The study will also aim to see if there is a connection between the amount of iron in the brain and common superficial siderosis symptoms. Clinical tests will be used to measure symptoms including tests to measure your hearing, walking \& balance and participants' ability to remember, think and understand.

02

Conditions studied

  • Superficial Siderosis

Keywords

  • brain iron
  • MRI
  • Quantitative Susceptibility Mapping
03

In context

Lead sponsor

Perspectum is the lead sponsor of 27 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

50 participants from around the UK

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Superficial siderosis cohort:

  • Male or female adults of 18 years of age or older with a confirmed diagnosis of superficial siderosis
  • Participants who have the capacity and a level of English proficiency that allows him/her to communicate well with the Investigator, understand and comply with the requirements of the investigation, read all participant facing documentation, as well as read and sign the form.
  • Participants willing and able to give informed consent for participation in the investigation

Healthy cohort:

  • Male or female over 18 years of age without a diagnosis of a neurological disorder
  • Participants who have the capacity and a level of English proficiency that allows him/her to communicate well with the Investigator, understand and comply with the requirements of the investigation, read all participant facing documentation, as well as read and sign the informed consent form.
  • Participants willing and able to give informed consent for participation in the investigation

Exclusion criteria

Exclusion Criteria:

  • The participant may not enter the investigation if they have any to magnetic resonance imaging (including pregnancy, extensive tattoos, pacemaker, shrapnel injury or metallic unfixed implanted devices, metallic fragments, severe claustrophobia and cochlear implants)
  • Any other cause, including a significant disease or disorder which, in the opinion of the investigator, may either put the participant at risk because of participation in the investigation, or may influence the result of the investigation, or the participant's ability to participate in the investigation
  • Participants who do not demonstrate the capacity to understand the investigation information or provide
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
50 participants (estimated)
Patient registry
No

Groups and cohorts

  • Superficial siderosis cohort

    Individuals diagnosed with infratentorial superficial siderosis

  • Healthy volunteer cohort

    Healthy volunteers without other neurological condition or significant disease

06

What researchers measure

Primary outcomes

  1. To evaluate the association and clinical relevance of with markers of neurodegeneration and clinical assessments

    1. Correlation between magnetic susceptibility assessed by QSM and brain cognitive function by MoCA. 2. Correlations between magnetic susceptibility assessed by QSM and: a) markers of neurodegeneration; and b) clinical assessment outcomes (auditory, balance, gait, cognitive)

    Time frame: through study completion, an average of 1 year

Secondary outcomes

  1. Radiologist observational scoring and test-retest

    1. The agreement between radiologist scored observational level of iron accumulation via the Queens Square Superficial Siderosis (QUASARS) rating scale and quantitative MRI measure related to iron on the brain surface. The QUASARS rating is out of 36 points; with higher scores indicate a worse outcome 2. The repeatability coefficient within a single scanning session

    Time frame: through study completion, an average of 1 year

07

Study locations

1 of 1 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 20, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07098650
Lead sponsor
Perspectum
Responsible party
Sponsor
First posted
Aug 1, 2025
Start date
Aug 14, 2025
Primary completion
Oct 31, 2026 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
Aug 20, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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No contact was published for this record. The registry link below has the sponsor’s details.

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