OphthalmologyNCT04890496
Analysis of Hospitalization Data From ZOC
An observational study of Ophthalmology and Hospitalization, run by Sun Yat-sen University at 1 site in China.
Trial summary
The real-world electronic health records (EHR) were derived from the hospitalization of Zhongshan Ophthalmic Center (ZOC) of Sun Yat-sen University from 1998-2020 to investigate the ophthalmology diagnosis and treatment activities. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Ophthalmology, Hospitalization
- How many people
- 560,000 participants
- Where
- 1 siteChina
- Study dates
- 18 Mar 2021to 30 Dec 2021
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: Patients have retrospective inpatient records of ZOC from 1998 to 2020.
Who may be able to join
- have retrospective inpatient records of ZOC from 1998 to 2020
Who cannot join
- Demographic data missing
- Diagnosis data missing
Trial locations and contacts
1 site in 1 country.
China1 site, 1 recruiting
- Recruiting
Zhongshan Ophthalmic Center, Sun Yat-sen Univerisity
Guangzhou, Guangdong, 510060
Haotian Lin, Ph.D, M.D., +86-020-87330274, gddlht@aliyun.com
About this study
Official title: Analysis of Hospitalization Data in Zhongshan Ophthalmology Center
The real-world electronic health records (EHR) were derived from the hospitalization of Zhongshan Ophthalmic Center (ZOC) of Sun Yat-sen University from 1998-2020 to investigate the ophthalmology diagnosis and treatment activities.
- Conditions
- Ophthalmology, Hospitalization
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| inpatients of ZOC | Patients have retrospective hopitalization record of ZOC from 1998 to 2020. |
What is being measured
The primary outcome is the main question the study is designed to answer.
The prevalence of primary diagnosis
calculate the prevalence of the primary diagnosis of inpatient visits
Measured: baseline
Secondary outcomes (3)
The prevalence of secondary diagnosis
calculate the prevalence of the secondary diagnosis of inpatient visits
Measured: baseline
Demographics
Demographics of inpatient visits
Measured: baseline
costs of inpatient visits
costs of inpatient visits
Measured: baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 May 2021
- Study start18 Mar 2021
- Primary completion1 Apr 2021
- Study completion30 Dec 2021 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for OphthalmologyStudies of the same condition, open and under way.
- More trials run by Sun Yat-sen UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 560,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Sun Yat-sen University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Haotian Lin, Sun Yat-sen University
- Investigators
- Haotian Lin, Ph.D, M.D., Principal investigator, Zhongshan Ophthalmic Center, Sun Yat-sen Univerisity
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04890496
- Sponsor's protocol ID
- HBD2021
- Status last verified
- May 2021
- First submitted
- 18 Mar 2021
- Last updated
- 18 May 2021
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 18 May 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Analysis of Hospitalization Data in Zhongshan Ophthalmology Center
- ClinicalTrials.gov ID
- NCT04890496
- Acronym / sponsor ID
- HBD2021
- Conditions
- Ophthalmology, Hospitalization
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 560,000 participants (estimated)
- Lead sponsor
- Sun Yat-sen UniversityUniversity, hospital or other
- Study start
- 18 Mar 2021 (actual)
- Primary completion
- 1 Apr 2021 (actual)
- Study completion
- 30 Dec 2021 (estimated)
- First posted
- 18 May 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The real-world electronic health records (EHR) were derived from the hospitalization of Zhongshan Ophthalmic Center (ZOC) of Sun Yat-sen University from 1998-2020 to investigate the ophthalmology diagnosis and treatment activities.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| inpatients of ZOC | – | –Patients have retrospective hopitalization record of ZOC from 1998 to 2020. |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Patients have retrospective inpatient records of ZOC from 1998 to 2020.
Key inclusion criteria (1 listed)
- have retrospective inpatient records of ZOC from 1998 to 2020
Key exclusion criteria (2 listed)
- Demographic data missing
- Diagnosis data missing
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
The prevalence of primary diagnosis
Time frame: baseline
calculate the prevalence of the primary diagnosis of inpatient visits
3 secondary outcomes
The prevalence of secondary diagnosis
Time frame: baseline
Demographics
Time frame: baseline
costs of inpatient visits
Time frame: baseline
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 May 2021.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Haotian Lin, Ph.D, M.D. principal investigator
Zhongshan Ophthalmic Center, Sun Yat-sen Univerisity
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Ophthalmology and Hospitalization, run by Sun Yat-sen University at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 18 May 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Haotian Lin, Ph.D, M.D. (+86-020-87330274, gddlht@aliyun.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The prevalence of primary diagnosis (time frame: baseline). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 May 2021.