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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03264937
Other study ID # 2017-P-033
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date September 1, 2017
Est. completion date March 8, 2019

Study information

Verified date June 2019
Source Wuhan Asia Heart Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Poor anticoagulation quality is a major problem among Chinese patients receiving warfarin therapy in traditional health care settings. Improving warfarin therapy has been crucial for Chinese patients. Wechat is social-software in China. Most of all Chinese adults use Wechat, as well as our patients. So we set up a Wechat-based mini-program to instruct Chinese patients' warfarin therapy. We aim to assess whether social software could improve warfarin therapy in Chinese patients by conducting a single-centre, open-label, prospective, randomized clinical trial.


Description:

Social software is becoming a necessary of life. Wechat, powered by Tencent company, is the most popular social software in China. People can chat with others no matter how far away from each other.

Anticoagulation Quality is very important for patients receiving warfarin anticoagulation therapy, which is usually evaluated Time in therapeutic range (TTR). It is reported that TTR is very low (38.8%) in China patients. So we are planning to introduce the social software to set up a bridge for clinicians and their patients, to instruct warfarin therapy. We aim to investigate whether social software could be used to improve warfarin anticoagulation quality of Chinese patients.

We planned to enrol enough eligible patients receiving warfarin therapy due to the mechanical valves in a randomized controlled trial. Warfarin-treated patients were assigned to social software management group ( in which warfarin therapy was guided via the social platform by experienced clinicians) or to the traditional management control group (in which warfarin therapy was managed with traditional model). The primary outcomes the first time to bleeding or thrombotic events, the secondary outcomes were an elevation in time in therapeutic range (TTR) of international normalized ratio (INR), reduction in INR variation and number of extremely high INR results during 18 months.


Recruitment information / eligibility

Status Completed
Enrollment 735
Est. completion date March 8, 2019
Est. primary completion date March 1, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria:

- Received mechanical valve replacement;

- Receiving warfarin anticoagulation therapy;

- Have smartphone and Know how to use wechat application and our mini-program;

- be expected to survive for the duration of the study;

- not be suffering from intracranial bleeding (intracranial haemorrhage, subarachnoid haemorrhage, hemorrhagic stroke) or any other contraindication described in the warfarin package insert;

- be willing to be randomized;

- sign the informed consent form;

- not be enrolled in another randomized clinical trial that involves a drug or device intervention.

Exclusion Criteria:

- subject has had an intracranial haemorrhage, subarachnoid haemorrhage, hemorrhagic stroke, or any other absolute/major contraindication described in the warfarin package insert within the last month

- subject enrolled in another randomized clinical trial that involves a drug or device intervention

- subject is not able to follow the protocol and all related instructions and does not have a caregiver with these skills

- Patients were considered being not suitable for this study

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Social-software management
Using Wechat application, a social platform, to manage warfarin therapy in patients with mechanical valve replacement.

Locations

Country Name City State
China WAHH Wuhan Hubei

Sponsors (1)

Lead Sponsor Collaborator
Wuhan Asia Heart Hospital

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Primary Time to First Event Thrombotic events, such as Valve thrombosis, Stroke, Peripheral embolism; Major bleeding, such as cerebral hemorrhage,gastrointestinal bleeding etc. Up to 18 months
Secondary Time in therapeutic range Time in target range (TTR) based on Prothrombin Time standardized to the International Normalized Ratio Up to 18 months
Secondary Individual variation of International Normalized Ratio (INR) Standard deviation (SD) of individual INR results Up to 18 months
Secondary Times of extremely high International Normalized Ratio (INR) values Times of INR results above 4.0; Times of INR results above 12.0 Up to 18 months
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