Comparison · NCT00933400-sae
CT Coronary Angiography-based Rapid Rule Out (Group B) vs Traditional Strategy (Group A): serious adverse events
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
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ConductScience Library. CT Coronary Angiography-based Rapid Rule Out (Group B) vs Traditional Strategy (Group A): serious adverse events. Trial comparisons, record NCT00933400-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT00933400-sae
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Measures6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note |
|---|---|---|---|---|---|
| Risk in group 1 | 0 | 0.000000000000000000434 | 0.00412 | wilson | |
| Risk in group 2 | 0.00432 | 0.00119 | 0.0156 | wilson | |
| Risk difference, group 1 minus group 2 | -0.00432 | -0.0156 | 0.000855 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | log | a group has no participants with the outcome | |||
| Odds ratio, group 1 over group 2 | log | a cell of the two-by-two table is zero | |||
| Number needed to treat, for one fewer participant with a serious adverse event on CT Coronary Angiography-based Rapid Rule Out (Group B) than on Traditional Strategy (Group A) | 232 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | CT Coronary Angiography-based Rapid Rule Out (Group B) | Participants will receive initial cardiac troponin and creatinine tests. Upon return of normal laboratory values (including a calculated creatinine clearance), the participants will receive a CT coronary angiography an estimated 90 minutes or as soon as the CT scanner is available following the initial values assessment. Participants with negative test results will be discharged unless other indications for admission per standard of care and follow up will comprise telephone interviews 30 days and 1 year after triage/presentation. Participants with positive test results will be admitted to the hospital for further management as dictated by the admitting team.~CT Coronary Angiography: CT coronary angiography will be performed without and with contrast in participants randomized to receive imaging as well as traditional care. (For applicable purposes, the decision to perform contrast-enhanced imaging in the presence of a large amount of calcium should be made according to procedures at each individual site.) The imaging test will be considered positive if the participant has a greater than 50% stenosis of the right coronary, left main, left anterior descending, or circumflex arteries or of their branches in contrast-enhanced CT coronary angiography. Results will be communicated to the responsible ED and treating staff immediately upon interpretation; ED staff will determine appropriate course of management. Negative results will result in patient discharge. | 0 | 929 | EG000 |
| Group 2 | Traditional Strategy (Group A) | In the traditional-care arm (Group A), all management and disposition decisions will be made by the healthcare providers caring for the participant. Participants will receive disposition (admit to hospital, admit to cardiac diagnostic unit, or discharge to home), diagnostic testing (none, stress testing, or cardiac catheterization), and treatment according to the team caring for the participant.~Traditional Strategy: Participants randomized to traditional care will be assessed and discharged/treated according to routine standard-of-care procedures in the institution's emergency department. | 2 | 463 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
- within 30 days of study scan and at 1 year follow up (or study termination visit if occurring prior to 1 year follow up)
Source ClinicalTrials.gov
Trial
- Title
- Computed Tomography Coronary Angiogram (CTCA) Versus Traditional Care in Emergency Department Assessment of Potential Acute Coronary Syndromes (ACS)
- NCT number
- NCT00933400
- Phases
- NA
- Conditions
- Chest Pain, Acute Coronary Syndrome, Acute Myocardial Infarction, Coronary Artery Disease
- Interventions
- CT Coronary Angiography (CTCA), Traditional Strategy
- Lead sponsor
- American College of Radiology
- Results first posted
- 2024-03-06
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT00933400?tab=results
Source ClinicalTrials.gov
Source
- Release
- trial-comparisons-2026-03-23-0.1.0
- Release manifest SHA-256
- f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
- AACT copy
- 2026-03-23
- Tables read
- outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet
Source ClinicalTrials.gov
Sources 2
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.
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