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Appropriateness clinical trials

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

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NCT ID: NCT03068858 Completed - Clinical trials for Coronary Revascularization

Real-time Feedback of SYNTAX Score Category During Coronary Angiographies to Improve Appropriateness of Coronary Revascularization for Patients With Stable Coronary Artery Diseases: a Before-and-after Controlled Study

Start date: September 2016
Phase: N/A
Study type: Interventional

The SYNTAX score (SS) has been recommended by clinical guideline and appropriate use criteria for coronary revascularization (CR) to provide guidance on optimal treatment strategies for patients with stable coronary artery diseases (CAD). However, discrepancy in SS between angiographic core lab (ACL) and cardiologists has been found. Whether the misestimate will lead to inappropriate CR and whether a SS intervention will improve CR appropriateness in patients with stable CAD remain unknown. Thus, our study aims at evaluating whether a real-time feedback from ACL rightafter the angiographies will improve CR appropriateness. A before-and-after controlled trial was designed. In the first period of time, stable CAD patients undergoing elective coronary angiographies with at least one coronary lesion stenosis ≥ 50% from one Chinese cardiac center will be continuously recruited as the control group. In the second period, eligible patients will be recruited continuously and a real-time SS category feedback from ACL rightafter the angiography will be given to the cardiologists. Appropriateness of treatment strategies in two groups will be analyzed to determine whether a real-time SS feedback can improve the treatment appropriateness. The appropriateness of treatment strategies will be adjudicated by Chinese version appropriate use criteria for CR.