Comparison · NCT00006400-sae
Hydroxyurea 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. Hydroxyurea vs Placebo: serious adverse events. Trial comparisons, record NCT00006400-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT00006400-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 | 0.198 | 0.131 | 0.289 | wilson | |
| Risk in group 2 | 0.361 | 0.272 | 0.46 | wilson | |
| Risk difference, group 1 minus group 2 | -0.163 | -0.283 | -0.0362 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.549 | 0.339 | 0.888 | log | |
| Odds ratio, group 1 over group 2 | 0.437 | 0.228 | 0.838 | log | |
| Number needed to treat, for one fewer participant with a serious adverse event on Hydroxyurea than on Placebo | 6.14 | 3.54 | 27.6 | 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 | Hydroxyurea | Participants were to receive hydroxyurea. | 19 | 96 | EG000 |
| Group 2 | Placebo | Participants were to receive placebo. | 35 | 97 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
- From randomization through study completion, an average of 1.93 years.
Source ClinicalTrials.gov
Trial
- Title
- Hydroxyurea to Prevent Organ Damage in Children With Sickle Cell Anemia
- NCT number
- NCT00006400
- Phases
- PHASE3
- Conditions
- Hematologic Diseases, Anemia, Sickle Cell
- Interventions
- Hydroxyurea, Placebo
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
- Results first posted
- 2020-08-19
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT00006400?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
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GET https://conductscience.org/api/comparisons/v1/NCT00006400-sae