Genetic association studies in primary acquired nasolacrimal duct obstruction

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20180611004

Enrollment

Registered

2018-06-11

Start date

2018-06-09

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

Chronic dacryocystitis Nasolacrimal duct obstruction NLDO PANDO Chronic dacryocystitis genetic study

Interventions

Patients who had chronic dacryocystitis and presented at King Chulalongkorn Memorial Hospital,Patients who had Nasolacrimal duct obstruction and presented at King Chulalongkorn Memorial Hospital,Patie

Basic Science,Basic Science,Basic Science

Chronic dacryocystitis,Nasolacrimal duct obstruction,Normal control

Eligibility

Sex/Gender

All

Age

50 Years to 70 Years

Inclusion criteria

Inclusion criteria: All patients who have chronic dacryocystitis or NLDO or normal population, age 50-70 years, who volunteer to participate in the study

Exclusion criteria

Exclusion criteria: CNLDO Lacrimal sac tumor History of lacrimal drainage system trauma History of radiotherapy around lacrimal draiange system area

Design outcomes

Primary

Measure	Time frame
Gene association study 12 months Exome sequencing	—

Secondary

Measure	Time frame
N/A N/A N/A	—

Contacts

Public Contactsuppapong tirakunwichcha

Department of Ophthalmology, Faculty of Medicine, Chulalongkorn University

suppapong@gmail.com022564142

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026