Comparison · NCT04650087-sae
Apixaban vs Placebo: serious adverse events
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
Download JSON
Cite this record
ConductScience Library. Apixaban vs Placebo: serious adverse events. Trial comparisons, record NCT04650087-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT04650087-sae
On this page
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 | 0.116 | 0.0933 | 0.144 | wilson | |
| Risk in group 2 | 0.109 | 0.0864 | 0.136 | wilson | |
| Risk difference, group 1 minus group 2 | 0.00766 | -0.0281 | 0.0434 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 1.07 | 0.781 | 1.47 | log | |
| Odds ratio, group 1 over group 2 | 1.08 | 0.757 | 1.54 | log | |
| Number needed to harm, for one more participant with a serious adverse event on Apixaban than on Placebo | 131 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: placebo.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Apixaban | Drug: Apixaban 2.5 MG Participants will be given study medication at the time of discharge from the hospital. Participants will take Apixaban 2.5 MG twice a day, once in the morning and once in the evening, for 30 days. Participants will be contacted (electronic or telephone) 2 days after starting the study medication and contact will continue up to day 90 after starting study treatment. Follow up will be through electronic and/or telephone contact depending on the participant's preference, compliance, and medication adherence. Participants will be queried for any clinically relevant endpoints, especially major bleeding or a need to seek healthcare attention for any reason. Follow-up will occur from the time of discharge and through the 30 day study period, with contacts 2 days, 10 days, 20 days, and 30 days after discharge. Two additional study contacts will take place 45 days and 90 days after discharge.~Apixaban 2.5 MG: Participants will take Apixaban 2.5 MG twice a day, once in the morning and once in the evening for 30 days. Participants will be contacted (electronic or telephone) 2 days after starting the study medication and will continue up to day 90 after starting study treatment. Followup will occur from the time of discharge through the 30 day study period with contacts at 2 days, 10 days, 20 days and 30 days after discharge. Two additional study contacts will take place 45 days and 90 days after discharge. | 71 | 610 | EG000 |
| Group 2 | Placebo | Drug: Placebo Participants will be given study medication at the time of discharge from the hospital. Participants will take the Placebo twice a day, once in the morning and once in the evening, for 30 days. Participants will be contacted (electronic or telephone) 2 days after starting the study medication and contact will continue up to day 90 after starting study treatment. Follow up will be through electronic and/or telephone contact depending on the participant's preference, compliance, and medication adherence. Participants will be queried for any clinically relevant endpoints, especially major bleeding or a need to seek healthcare attention for any reason. Follow-up will occur from the time of discharge and through the 30 day study period, with contacts 2 days, 10 days, 20 days, and 30 days after discharge. Two additional study contacts will take place 45 days and 90 days after discharge.~Placebo: Participants will take placebo twice a day, once in the morning and once in the evening for 30 days. Participants will be contacted (electronic or telephone) 2 days after starting the study medication and will continue up to day 90 after starting study treatment. Followup will occur from the time of discharge through the 30 day study period with contacts at 2 days, 10 days, 20 days and 30 days after discharge. Two additional study contacts will take place 45 days and 90 days after discharge. | 66 | 607 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
- Up to the 90 day visit
Source ClinicalTrials.gov
Trial
- Title
- COVID-19 Thrombosis Prevention Trials: Post-hospital Thromboprophylaxis
- NCT number
- NCT04650087
- Phases
- PHASE3
- Conditions
- Covid19
- Interventions
- Apixaban 2.5 MG, Placebo
- Lead sponsor
- Thomas L. Ortel
- Results first posted
- 2025-02-25
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT04650087?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.
For software
Read this comparison from software.
The record is JSON. No key.
GET https://conductscience.org/api/comparisons/v1/NCT04650087-sae