New eye drop shows promise for Sjögren's dry eye relief
NCT ID NCT06520202
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-phase trial tested a new eye drop called rhPRG4 in 8 people with Sjögren's syndrome-related dry eye. Participants received either the active drop or a placebo, then switched after 90 minutes. The study measured eye dryness and safety over a single day. Because the trial was very small and terminated early, results are limited.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- rhPRG4 (recombinant human proteoglycan 4) eye drops
- What this could lead to
- If it works, this could point toward a new eye drop to temporarily relieve dryness and discomfort in people with Sjögren's syndrome.
- What could go wrong
- This is a very small, early-phase study (only 8 people) that was terminated, so results may be limited. The treatment only provides short-term relief and is not a cure.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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8 people
The number who actually took part.
- Started
-
Nov 2024
- Finished
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Nov 2024
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 75 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. Subjects 18-75 years of age. 2. Subjects previously diagnosed with Sjögren's Syndrome 3. Subjects diagnosed with Sjögren's related Dry Eye Disease for at least 3 months (current use of artificial tears for the treatment of Dry Eye) 4. VAS Eye Dryness (100-point scale) score ≥ 45 mm; 5. Osmolarity ≥ 312 mOsm/L in the worst performing eye; 6. Only subjects who satisfy all Informed Consent requirements may be included in the study. Exclusion Criteria: Diagnosis and Main Criteria for Exclusion: 1. Evidence of an active ocular infection in either eye; 2. History or presence of ocular surface disorders not related to dry eye in either eye, including but not limited to significant conjunctivochalasis, SLK, limbal stem cell deficiency, allergic conjunctivitis, GPC, AKC, anterior basement membrane dystrophies, recurrent corneal erosion, neurotrophic keratitis, PCEDs, exposure keratitis and moderate to severe blepharitis; 3. History of any ocular surgery (including laser or refractive surgical procedures) in either eye within 30 days before study enrollment. Ocular surgery will not be allowed during the study treatment period and elective ocular surgery procedures should not be planned during the duration of the follow-up period; 4. Presence or history of any ocular or systemic disorder or condition that might significantly hinder the efficacy of the study treatment or its evaluation, could possibly interfere with the interpretation of study results, or could be judged by the investigator to be incompatible with the study visit schedule or conduct of trial procedures (e.g. ocular trauma, progressive or degenerative corneal conditions, uveitis, systemic infection), or initiation or cessation any systemic drug during the study period that is known to induce dry eye disease; 5. Known hypersensitivity to one of the components of the study or procedural medications; 6. Participation in another clinical study at the same time as the present study or within 14 days of screening/baseline visit; 7. History of drug, medication or alcohol abuse or addiction; 8. Females of childbearing potential (those who are not surgically sterilized or post-menopausal for at least 1 year) are excluded from participation in the study if they meet any one of the following conditions: 9. are currently pregnant or, 10. have a positive result on the urine pregnancy test at the Screening/Baseline Visit or, 11. intend to become pregnant during the entire course of and 30 days after the study treatment periods, or, 12. are breast-feeding or, 13. not willing to use highly effective birth control measures, such as: Hormonal contraceptives - oral, implanted, transdermal, or injected and/or mechanical barrier methods, during the entire course of and 30 days after the study treatment periods.
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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.
Contacts and locations
Locations
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Sydney Eye Hospital
Sydney, Australia