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Status unknownNCT03758859CLARITYUpdated Sep 4, 2019

CLARITY Imaging Study

An interventional study of sodium hyaluronate eyedrops in Glaucoma, sponsored by Imperial College London. Status unknown at 1 site in United Kingdom. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-09-04.

Sponsored by Imperial College London · Not applicable, Interventional, and Diagnostic

The sponsor has not verified this record recently (last verified Sep 2019), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

OCT image quality is necessary to provide accurate diagnostic information to ophthalmologists. The increasing resolution of imaging techniques will require ever more high standards of optical transmission through the cornea and tear film. Given that lubricant drops can improve optical transmission through the cornea, this study will attempt to quantify this. The primary objective is to assess the effect of cross-linked sodium hyaluronate on OCT image quality compared to the effect of blinking alone.

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Conditions studied

  • Glaucoma

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Keywords

  • Glaucoma
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In context

Glaucoma

1,818 studies on the registry are indexed under Glaucoma; 231 are open to participants now.

This study's planned enrollment of 80 is above the median of 65 across 1,272 interventional studies indexed under Glaucoma.

Browse Glaucoma studies →

Lead sponsor

Imperial College London is the lead sponsor of 824 studies on the registry; 178 are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 6 (67%) have results posted.

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

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients subjectively deemed to have poor image quality by the photographer

Exclusion criteria

Exclusion Criteria:

  • Patients with a known adverse reaction to any of the constituents of the XLHA
  • Patients wearing contact lenses
  • Patients who have used eyedrops in the past 2 hours
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Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
80 participants (estimated)

Study arms

  • Experimental
    sodium hyaluronate eye drops

    the randomly allocated eye will receive sodium hyaluronate drops, followed by a repeat OCT scan; images are then evaluated for clarity by the masked assessor.

    Other: sodium hyaluronate eyedrops

Interventions

  • Othersodium hyaluronate eyedrops

    sodium hyaluronate eyedrops administered - route ocular -topical

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What researchers measure

Primary outcomes

  1. Clarity of retinal images obtained by Optical Coherence Tomography.

    Signal strength of OCT scan

    Time frame: immediately after the administration of drops.

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Study locations

1 of 1 sites recruiting
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References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 4, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03758859
Lead sponsor
Imperial College London
Responsible party
Sponsor
First posted
Nov 29, 2018
Start date
Apr 12, 2019
Primary completion
Oct 31, 2019 (estimated)
Completion
Oct 31, 2019 (estimated)
Last update
Sep 4, 2019

Study contacts

Serge Miodragovic
Contact
serge.miodragovic1@nhs.net
+442033123206 ext. 23206
Timothy Yap
Contact
timothyedward.yap@nhs.net
+442033123206 ext. 23206
Timothy Yap
principal investigator · Imperial College NHS Trust

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 status unknown, as verified in Sep 2019. You cannot join it, but the record below documents what was studied.

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