Comparison · NCT00498550-sae
Clozapine vs Treatment as Usual: 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. Clozapine vs Treatment as Usual: serious adverse events. Trial comparisons, record NCT00498550-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT00498550-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 | 0.267 | 0.109 | 0.52 | wilson | |
| Risk in group 2 | 0.25 | 0.102 | 0.495 | wilson | |
| Risk difference, group 1 minus group 2 | 0.0167 | -0.275 | 0.31 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 1.07 | 0.323 | 3.52 | log | |
| Odds ratio, group 1 over group 2 | 1.09 | 0.218 | 5.45 | log | |
| Number needed to harm, for one more participant with a serious adverse event on Clozapine than on Treatment as Usual | 60 | 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 | Clozapine | Clozapine, Clozaril | 4 | 15 | EG000 |
| Group 2 | Treatment as Usual | Treatment as usual with any antipsychotic other than Clozapine. | 4 | 16 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
- 12 Weeks
Source ClinicalTrials.gov
Trial
- Title
- Treatment of Schizophrenia and Comorbid Cannabis Use Disorder: Comparing Clozapine to Treatment-as-Usual
- NCT number
- NCT00498550
- Phases
- PHASE4
- Conditions
- Schizophrenia, Dual Diagnosis, Schizoaffective Disorder, Psychotic Disorder, Cannabis Abuse
- Interventions
- Clozapine, Treatment as usual
- Lead sponsor
- Dartmouth-Hitchcock Medical Center
- Results first posted
- 2012-01-19
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT00498550?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.
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GET https://conductscience.org/api/comparisons/v1/NCT00498550-sae