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Active, not recruitingNCT04973384Updated Nov 15, 2024

Ocular Comorbidity in Atopic Dermatitis

An observational study in Atopic Keratoconjunctivitis, sponsored by Rigshospitalet, Denmark. Active, not recruiting at 1 site in Denmark. Per ClinicalTrials.gov, last updated 2024-11-15.

Sponsored by Rigshospitalet, Denmark · Observational

Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
120
Sex
All
01

Study summary

A clinical characterization of a large cohort of patients with different severities of AD and ocular symptoms/atopic keratoconjunktivitis (AKC). The data will contribute to assess the frequency of complications in order to give a rationale for focused prevention and treatment strategy.

Read the detailed description

Atopic Dermatitis (AD), a very common inflammatory skin condition of child and adulthood, is strongly associated with ocular disease. Accordingly, about 20% experience conjunctivitis at some point, and many have chronic disease. Atopic keratoconjunctivitis (AKC) is the most feared as it may lead to blindness. Little is known about the etiology, the immune infiltrate, as well as predictive factors of AKC and the clinical characteristics of AD patients who develop this entity. We expect this project to enable clinicians to better identify AKC patients in the future as well as improve the understanding of the pathogenesis of AKC.

The ocular findings will be compared between AD severity and a control group without ocular symptoms.

02

Conditions studied

  • Atopic Keratoconjunctivitis

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03

In context

Keratoconjunctivitis

27 studies on the registry are indexed under Keratoconjunctivitis; 3 are open to participants now.

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Lead sponsor

Rigshospitalet, Denmark is the lead sponsor of 1,007 studies on the registry; 175 are open to participants now.

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

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

AD patients with current or previous ocular symptoms suspected to be atopic keratoconjunctivitis

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

  • Danish talking
  • Diagnosed with atopic dermatitis (AD)
  • Current or previous ocular symptoms suspected to be atopic keratoconjunctivitis

Exclusion criteria

Exclusion Criteria:

  • No pause in eyedrops
  • Ocular infections within the last 3 months
  • Use of local or systemic antibiotics within the last 3 months
  • Significant untreated systemic disease such as hypertension, heart failure, diabetes mellitus, previous cerebral infarction or bleeding, lung diseases and diseases other than atopic dermatitis and related comorbidities. The diseases are accepted if they are well treated or do not require treatment
  • Current pregnant or breastfeeding
  • Use of contact lenses, unless these are paused 2 weeks before the examination or they are due to keratoconus treatment
  • If the eye symptoms turn out not to be related to atopic keratoconjunctivitis
  • If it is assessed that the individual cannot participate sufficiently for the examination
Terms in these criteria, in plain language(1)

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.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

05

Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
120 participants (estimated)
Patient registry
No
Biospecimen retention
Samples with dna
06

What researchers measure

Primary outcomes

  1. Bulbar redness (BR) score

    Difference in Bulbar redness (BR) score (Keratograph 5M, R-scan). Scale from 0-4. A higher score indicates more severe BR.

    Time frame: 1 day At examination

Secondary outcomes

  1. Inferior Tear Meniscus Height (TMH)

    Difference in Inferior Tear Meniscus Height (TMH) (Keratograph 5M)

    Time frame: 1 day Cross-sectional at examination (one time)

  2. Non-invasive Keratograph Break-Up Time (NIKBUT)

    Difference in Non-invasive Keratograph Break-Up Time (NIKBUT) (Keratograph 5M)

    Time frame: 1 day Cross-sectional at examination (one time)

  3. Meibo-Scan

    Difference in Meibo-Scan (Keratograph 5M). Scale from 0-3. A higher score indicates more morphological changes.

    Time frame: 1 day Cross-sectional at examination (one time)

  4. Ocular surface staining

    Difference in Ocular surface staining

    Time frame: 1 day Cross-sectional at examination (one time)

  5. Osmolarity of the tears

    Difference in Osmolarity of the tears (TearLab™)

    Time frame: 1 day Cross-sectional at examination (one time)

  6. Fluorescein tear break up time (TFBUT)

    Difference in Fluorescein tear break up time (TFBUT)

    Time frame: 1 day Cross-sectional at examination (one time)

  7. Schirmer's I test

    Difference in Schirmer's I test

    Time frame: 1 day Cross-sectional at examination (one time)

  8. Intraocular pressure (IOP)

    Difference in Intraocular pressure (IOP)

    Time frame: 1 day Cross-sectional at examination (one time)

  9. Pentacam investigations for detection of keratoconus

    Difference in the frequency of keratoconus

    Time frame: 1 day Cross-sectional at examination (one time)

  10. Tear cytokine analysis

    Difference in the levels of inflammatory cytokines in the tears

    Time frame: 1 day Cross-sectional at examination (one time)

  11. Tear proteomic analysis

    Difference in the protein profile in the tears

    Time frame: 1 day Cross-sectional at examination (one time)

  12. Tear MUC5AC analysis

    Difference in the level of MUC5AC in tears

    Time frame: 1 day Cross-sectional at examination (one time)

  13. Goblet cell density

    Difference in goblet cells density

    Time frame: 1 day Cross-sectional at examination (one time)

  14. Microbiome analysis

    Difference in the amount of different species of the Microbiome of the ocular surface

    Time frame: 1 day Cross-sectional at examination (one time)

  15. Investigation of the infestation of Demodex

    Difference in the amount of Demodex mites in the eyelashes/eyelids with non-invasive in vivo confocal microscopy

    Time frame: 1 day Cross-sectional at examination (one time)

  16. OSDI-score

    Difference in the Ocular Surface Disease Index (OSDI) score. A 12-item questionnaire that gives a score on a scale from 0 to 100, where higher scores represent greater disability (mild \[13-22 points\], moderate \[23-32 points\], and severe \[33-100 points\]).

    Time frame: 1 day Cross-sectional at examination (one time)

  17. PO-SCORAD

    Difference in the Patient-Oriented SCORing of Atopic Dermatitis (POSCORAD) score. A validated self-assessment tool to clinical evaluate AD severity, using subjective and objective criteria. A higher score indicates more severe AD.

    Time frame: 1 day Cross-sectional at examination (one time)

  18. POEM

    Difference in the Patient Oriented Eczema Measure (POEM) score. A validated self-assessment tool to clinical evaluate AD severity. A scale from 0-28. A higher score indicates more severe AD.

    Time frame: 1 day Cross-sectional at examination (one time)

  19. EASI

    Difference in Eczema Area and Severity Index (EASI) score. A tool used to measure the extent (area) and severity of atopic eczema. A scale from 0-72. A higher score indicates more severe AD.

    Time frame: 1 day Cross-sectional at examination (one time)

  20. best-corrected logMAR acuity

    Difference in best-corrected logMAR acuity

    Time frame: 1 day Cross-sectional at examination (one time)

  21. Slit lamp examination

    Difference in observations with slit lamp

    Time frame: 1 day Cross-sectional at examination (one time)

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Aug 2021 to primary completion in Feb 2024, 30 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 6, 2021
First posted
Jul 22, 2021
StartActual
Aug 5, 2021
Primary completionActual
Feb 14, 2024
CompletionEst.
Dec 2026
Last update
Nov 15, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04973384
Responsible party
Pernille Rævdal (MD, PhD-student, Coordinating researcher,, Rigshospitalet, Denmark) — Principal investigator
First posted
Jul 22, 2021
Start date
Aug 5, 2021
Primary completion
Feb 14, 2024
Completion
Dec 2026 (estimated)
Last update
Nov 15, 2024

Study contacts

Steffen Heegaard, MD, DMSci
principal investigator · Department of Ophthalmology, Rigshospitalet-Glostrup

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

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