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Effect of Adjunctive Topical Insulin in Promoting Ocular Surface Wound Healing After Pterygium Excision: A Randomized Controlled Trial

Effect of Adjunctive Topical Insulin in Promoting Ocular Surface Wound Healing After Pterygium Excision: A Randomized Controlled Trial

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20260301003
Enrollment
56
Registered
2026-03-01
Start date
2026-03-02
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Primary pterygium Primary pterygium, corneal epithelial healing, conjunctival healing, topical insulin

Interventions

Topical insulin 0.1 unit/ml qid,0.9% Normal saline solution
Experimental Drug,Placebo Comparator Drug
Topical insulin,Placebo

Sponsors

Faculty of Medicine, Chulalongkorn University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1)Age > 18 years 2)Primary pterygium T1, T2 or T3 grade with indication of surgical excision as follow - Visually significant or induced astigmatism - Significant irritation or inflammation failed to response to medical treatment - Limited extraocular movement or diplopia - Cosmetically unacceptable 3) Indicated for surgical excision with amniotic membrane graft transplantation such as glaucoma suspected, large size pterygium which conjunctival autograft is insufficient, thinned conjunctiva due to age related change. 4)Voluntary informed consent obtained and available to adhere to drugs and follow-up visits

Exclusion criteria

Exclusion criteria: 1) Bi-headed pterygium 2) Pterygium which indicated to combine surgery with mitomycin-C 3) Currently on any topical medication except artificial tears or lubricant gel (such as anti-glaucoma medications, steroids) 4) Diagnosed with other ocular surface diseases rather than pterygium, meibomian gland dysfunction and dry eyes 5) Previous conjunctival surgery such as previous pterygium excision, strabismus surgery or conjunctival mass excision, or previous ocular trauma 6) Patient undergone pterygium surgery which required addition suture for amniotic membrane graft fixation. 7) Unwilling to participate and sign informed consent 8) Pregnancy and lactation

Design outcomes

Primary

MeasureTime frame
Corneal epithelial healing 7 days Square millimeter per day

Secondary

MeasureTime frame
Conjunctival healing rate 7 days Square millimeter per day

Countries

Thailand

Contacts

Public ContactGulnida Nagavajra

King Chulalongkorn Memorial Hospital

Gulnida.nag@chulahospital.org022564000

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026