Ovarian CancerNCT01465750
Epidemiology of Ovarian Cancer in Taiwan
An observational study of Ovarian Cancer, run by National Taiwan University Hospital at 1 site in Taiwan.
Trial summary
Cancer is the leading cause of mortality in the investigators country. According to the statistics of the Department of Health, the incidence of ovarian cancer increased in recent years and the mortality rate is highest in all gynecologic malignancies in Taiwan. Read more about this study
- Who is it for?
- Ages 15 to 85 years, women only
- Conditions the study is for
- Ovarian Cancer
- How many people
- 10,000 participants
- Where
- 1 siteTaiwan
- Study dates
- Apr 2011to Apr 2014
- 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 15 to 85 years
- Women only
- No healthy volunteers
- Child, Adult, Older adult
Study population: ovarian cancer patients
Who may be able to join
- Patients of ovarian cancer registered at National Taiwan Cancer registration system between 1979-2008
Who cannot join
- nil
Trial locations and contacts
1 site in 1 country.
Taiwan1 site, 1 recruiting
- Recruiting
National Taiwan University Hospital
Taipei
Wen-Fang Cheng, Professor, 886-2-23123456 ext. 71964, wenfangcheng@yahoo.com
About this study
Cancer is the leading cause of mortality in the investigators country. According to the statistics of the Department of Health, the incidence of ovarian cancer increased in recent years and the mortality rate is highest in all gynecologic malignancies in Taiwan. Ovarian cancer becomes a more and more important disease gradually in the field of gynecologic malignancies. The classification of histology in ovarian cancer included epithelial ovarian cancer、germ cell tumors、sex-cord cell tumors…etc. Epithelial ovarian carcinoma is the most common ovarian cancer clinically. Early diagnosis is difficult due to the lack of obvious initial symptoms, so ovarian cancer patients are usually at advanced stage when the diagnosis is confirmed. The prognostic parameters for ovarian carcinomas include tumor stage, histological subtype, degree of malignancy, residual tumor after surgical intervention and the response to chemotherapy. However, the possible etiology and mechanism of ovarian cancer is still unclear. However, there is no epidemiologic data of ovarian cancer in Taiwan. Therefore the investigators propose this study to use Taiwan registry database provided by Department of Health to analyze the epidemiology and prognosis of ovarian cancer patients in Taiwan.
Read the detailed description
Study population: To evaluate the epidemiology and prognosis of ovarian cancer in Taiwan, we will conduct a nationwide analysis through linking national cancer registry database. Every citizen in Taiwan has a life-long identification number to link individual information, including health status. The Taiwan household registry database provided by Department of Health will be the source population. National household registry and death certificate will be adopted to ascertain the live status of study subjects, and provided individual demographic characteristics.All individual linkages between databases will be conducted according to the study protocols, i.e. databases will be linked by corresponding identification number, name (Chinese characters) and birthday, and all data included in this study will be analyzed without individual identification information. The agreement of utilizing the databases in the study was obtained from the Bureau of Health Promotion in Taiwan.
Incident and death cases ascertainment: Patients with ovarian cancer, including epithelial ovarian carcinoma, germ cell tumors, sex cord tumors … etc., will be identified from computerized linkage to the Taiwan national cancer registry with International Classification of Diseases for Oncology Third Edition T-code C569. Histological types will be identified from morphology code in the cancer registry database. Women affected by ovarian cancer and found death due to ovarian cancer (International Classification of Diseases 9th edition code 183) in deaths certificate will be defined as death cases.
Statistical Analyses: The numbers of person-years at risk of developing and dying for ovarian cancer will be calculated. Incidence rates will be calculated by dividing the number of ovarian cancer cases by the person-years at risk of developing ovarian cancer. Mortality rates will be calculated by dividing the number of ovarian cancer deaths by the person-years at risk of dying from ovarian cancer. The association between mortality and age, histology, time periods will be estimated through Kaplan-Meier survival analysis and Cox's proportional hazards model. It is defined as significantly different statistically when p value is less than 0.05.
- Conditions
- Ovarian Cancer
- Medical subject headings
- Ovarian Neoplasms
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 |
|---|---|---|
| Ovarian Cancer | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Overall survival
The follow-up of each participant (in personyears) was calculated from the date of enrollment to the date of ovarian cancer diagnosis, date of death, or last date of linked data available from the Taiwan Cancer Registry or Death Certification Profile, whichever came first until December 31, 2010.
Measured: From diagnosis of ovarian cancer to death or last date of linked data available from the Taiwan Cancer Registry or Death Certification Profile
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Nov 2011 (estimated)
- Study startApr 2011
- Primary completionApr 2012 (estimated)
- Study completionApr 2014 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Ovarian CancerStudies of the same condition, open and under way.
- More trials run by National Taiwan University HospitalThe 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
- Case only
- Time perspective
- Retrospective
- Enrolment
- 10,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- National Taiwan University Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Wen-Fang Cheng, Professor, Principal investigator, National Taiwan University Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01465750
- Sponsor's protocol ID
- 201103108RC
- Status last verified
- Apr 2011
- First submitted
- 26 Oct 2011
- Last updated
- 7 Nov 2011
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 7 Nov 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Epidemiology of Ovarian Cancer in Taiwan
- ClinicalTrials.gov ID
- NCT01465750
- Acronym / sponsor ID
- 201103108RC
- Conditions
- Ovarian Cancer
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 10,000 participants (estimated)
- Lead sponsor
- National Taiwan University HospitalUniversity, hospital or other
- Study start
- Apr 2011
- Primary completion
- Apr 2012 (estimated)
- Study completion
- Apr 2014 (estimated)
- First posted
- 7 Nov 2011 (estimated)
- 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.
Cancer is the leading cause of mortality in the investigators country. According to the statistics of the Department of Health, the incidence of ovarian cancer increased in recent years and the mortality rate is highest in all gynecologic malignancies in Taiwan. Ovarian cancer becomes a more and more important disease gradually in the field of gynecologic malignancies. The classification of histology in ovarian cancer included epithelial ovarian cancer、germ cell tumors、sex-cord cell tumors…etc. Epithelial ovarian carcinoma is the most common ovarian cancer clinically. Early diagnosis is difficult due to the lack of obvious initial symptoms, so ovarian cancer patients are usually at advanced stage when the diagnosis is confirmed. The prognostic parameters for ovarian carcinomas include tumor stage, histological subtype, degree of malignancy, residual tumor after surgical intervention and the response to chemotherapy. However, the possible etiology and mechanism of ovarian cancer is still unclear. However, there is no epidemiologic data of ovarian cancer in Taiwan. Therefore the investigators propose this study to use Taiwan registry database provided by Department of Health to analyze the epidemiology and prognosis of ovarian cancer patients in Taiwan.
Detailed description
Study population: To evaluate the epidemiology and prognosis of ovarian cancer in Taiwan, we will conduct a nationwide analysis through linking national cancer registry database. Every citizen in Taiwan has a life-long identification number to link individual information, including health status. The Taiwan household registry database provided by Department of Health will be the source population. National household registry and death certificate will be adopted to ascertain the live status of study subjects, and provided individual demographic characteristics.All individual linkages between databases will be conducted according to the study protocols, i.e. databases will be linked by corresponding identification number, name (Chinese characters) and birthday, and all data included in this study will be analyzed without individual identification information. The agreement of utilizing the databases in the study was obtained from the Bureau of Health Promotion in Taiwan.
Incident and death cases ascertainment: Patients with ovarian cancer, including epithelial ovarian carcinoma, germ cell tumors, sex cord tumors … etc., will be identified from computerized linkage to the Taiwan national cancer registry with International Classification of Diseases for Oncology Third Edition T-code C569. Histological types will be identified from morphology code in the cancer registry database. Women affected by ovarian cancer and found death due to ovarian cancer (International Classification of Diseases 9th edition code 183) in deaths certificate will be defined as death cases.
Statistical Analyses: The numbers of person-years at risk of developing and dying for ovarian cancer will be calculated. Incidence rates will be calculated by dividing the number of ovarian cancer cases by the person-years at risk of developing ovarian cancer. Mortality rates will be calculated by dividing the number of ovarian cancer deaths by the person-years at risk of dying from ovarian cancer. The association between mortality and age, histology, time periods will be estimated through Kaplan-Meier survival analysis and Cox's proportional hazards model. It is defined as significantly different statistically when p value is less than 0.05.
Study design
- Observational model
- Case only
- Time perspective
- Retrospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Ovarian Cancer | – | – |
Who may qualify
- Ages
- 15 to 85 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- ovarian cancer patients
Key inclusion criteria (1 listed)
- Patients of ovarian cancer registered at National Taiwan Cancer registration system between 1979-2008
Key exclusion criteria (1 listed)
- nil
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
Overall survival
Time frame: From diagnosis of ovarian cancer to death or last date of linked data available from the Taiwan Cancer Registry or Death Certification Profile
The follow-up of each participant (in personyears) was calculated from the date of enrollment to the date of ovarian cancer diagnosis, date of death, or last date of linked data available from the Taiwan Cancer Registry or Death Certification Profile, whichever came first until December 31, 2010.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Nov 2011.
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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.
Wen-Fang Cheng, Professor principal investigator
National Taiwan University Hospital
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 Ovarian Cancer, run by National Taiwan University Hospital at 1 site in Taiwan.
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 1 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 7 Nov 2011. 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 Taiwan. 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 Wen-Fang Cheng, Professor (886-2-23123456 ext. 71964, wenfangcheng@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Overall survival (time frame: From diagnosis of ovarian cancer to death or last date of linked data available from the Taiwan Cancer Registry or Death Certification Profile). 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 7 Nov 2011; AzTrials last refreshed its copy on 8 Nov 2026.