Comparison · NCT02839330-sae
aH5N1c 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
Cite this record
ConductScience Library. aH5N1c vs Placebo: serious adverse events. Trial comparisons, record NCT02839330-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT02839330-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 | 0.0672 | 0.0579 | 0.078 | wilson | |
| Risk in group 2 | 0.093 | 0.0747 | 0.115 | wilson | |
| Risk difference, group 1 minus group 2 | -0.0257 | -0.0498 | -0.00455 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.723 | 0.556 | 0.941 | log | |
| Odds ratio, group 1 over group 2 | 0.703 | 0.527 | 0.938 | log | |
| Number needed to treat, for one fewer participant with a serious adverse event on aH5N1c than on Placebo | 38.8 | 20.1 | 220 | from the risk difference interval |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: placebo.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | aH5N1c | aH5N1c (Active Treatment Groups); receive 2 doses (on Day 1 and Day 22) | 161 | 2,395 | EG000 |
| Group 2 | Placebo | Placebo; receive 2 doses (on Day 1 and Day 22) | 74 | 796 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
- Day 1 to Day 387
Source ClinicalTrials.gov
Trial
- Title
- A Study to Evaluate Safety, Immunogenicity, and Lot-to-Lot Consistency of H5N1 Subunit Influenza Virus Vaccine in Healthy Adult Subjects ≥18 Years of Age
- NCT number
- NCT02839330
- Phases
- PHASE3
- Conditions
- Avian Influenza
- Interventions
- aH5N1c, Placebo
- Lead sponsor
- Seqirus
- Results first posted
- 2019-04-04
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT02839330?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/NCT02839330-sae