Comparison · NCT00072462-sae
Anastrozole vs Tamoxifen: 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. Anastrozole vs Tamoxifen: serious adverse events. Trial comparisons, record NCT00072462-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT00072462-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 | 0.23 | 0.209 | 0.252 | wilson | |
| Risk in group 2 | 0.249 | 0.228 | 0.272 | wilson | |
| Risk difference, group 1 minus group 2 | -0.0193 | -0.0501 | 0.0115 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.922 | 0.811 | 1.05 | log | |
| Odds ratio, group 1 over group 2 | 0.899 | 0.759 | 1.07 | log | |
| Number needed to treat, for one fewer participant with a serious adverse event on Anastrozole than on Tamoxifen | 51.7 | 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 | Anastrozole | Anastrozole: Anastrozole 1mg + Tamoxifen placebo | 333 | 1,449 | EG000 |
| Group 2 | Tamoxifen | tamoxifen citrate: Tamoxifen 20mg + Anastrozole placebo | 371 | 1,489 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
- Adverse event data were collected from randomisation to study completion, median follow-up was 11.6 years (IQR: 9.9-13.5).
Source ClinicalTrials.gov
Trial
- Title
- Adjuvant Tamoxifen Compared With Anastrozole in Treating Postmenopausal Women With Ductal Carcinoma In Situ
- NCT number
- NCT00072462
- Phases
- PHASE3
- Conditions
- Breast Cancer
- Interventions
- tamoxifen citrate, Anastrozole
- Lead sponsor
- Queen Mary University of London
- Results first posted
- 2024-09-19
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT00072462?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/NCT00072462-sae