Last reviewed · How we verify
NCT04143334
Prevalence of Blindness, Visual Impairment in Chao Nan Area, China
trial testing Conventional survey in Blindness in 3,700 participants. Completed in 1 December 2016.
1 December 2015
Quick facts
| Lead sponsor | Chinese University of Hong Kong |
|---|---|
| Status | Completed |
| Study type | OBSERVATIONAL |
| Enrollment | 3,700 |
| Start date | 1 April 2012 |
| Primary completion | 1 December 2015 |
| Estimated completion | 1 December 2016 |
Drugs / interventions tested
- Conventional survey
Conditions studied
- Blindness — all drugs for Blindness →
- Cataract — all drugs for Cataract →
- Visual Impairment — all drugs for Visual Impairment →
- Refractive Errors — all drugs for Refractive Errors →
Sponsor
Chinese University of Hong Kong
Who can join
50 and older, any sex, with Blindness or Cataract. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
This study will provide a profile of blindness/visual impairment, avoidable blindness and cataract surgery service in Chaonan, mainland China. We also evaluate the diagnostic accuracy of Rapid Assessment of Avoidable Blindness (RAAB) comparison with conventional survey.
Publications & conference data
No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.
Verify or expand the search:
- PubMed search for NCT04143334
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT04143334 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Chinese University of Hong Kong
- Last refreshed: 31 October 2019
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04143334.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing