Comparison · NCT03443973-8871e9c8
Placebo: DBT vs Gantenerumab: DBT: DBT Period: Number of Participants With AEs
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
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ConductScience Library. Placebo: DBT vs Gantenerumab: DBT: DBT Period: Number of Participants With AEs. Trial comparisons, record NCT03443973-8871e9c8. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT03443973-8871e9c8
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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 | 0.863 | 0.829 | 0.891 | wilson | |
| Risk in group 2 | 0.9 | 0.871 | 0.923 | wilson | |
| Risk difference, group 1 minus group 2 | -0.0373 | -0.0785 | 0.00329 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.959 | 0.915 | 1 | log | |
| Odds ratio, group 1 over group 2 | 0.698 | 0.471 | 1.03 | log | |
| Number needed to treat, for one fewer participant with the outcome on Placebo: DBT than on Gantenerumab: DBT | 26.8 | 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 | Placebo: DBT | Participants received, gantenerumab matching placebo, SC injections, Q4W up to Week 36 and then Q2W up to Week 114 of the DBT period. | 409 | 474 | OG000 |
| Group 2 | Gantenerumab: DBT | Participants received gantenerumab, SC injections with gradual up-titration starting at a dose of 120 mg, Q4W for 3 doses, followed by 255 mg, Q4W for 3 doses, and 510 mg, Q4W for 3 doses. Following this, from Week 36 onwards, participants received gantenerumab, SC injections, at a dose of 510 mg, Q2W up to Week 114 of the DBT period. | 451 | 501 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- DBT Period: Number of Participants With AEs
- Description
- An AE is any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution.
- Time frame
- From Day 1 up to 14 weeks after the last dose of blinded study drug (up to 128 weeks)
- Population
Safety-evaluable set included all participants randomized during the global phase, who received at least one dose of study drug. In the DBT period, three participants randomized to placebo arm received at least one dose of gantenerumab and were considered in the gantenerumab arm for safety evaluable set.
Source ClinicalTrials.gov
Trial
- Title
- Safety and Efficacy Study of Gantenerumab in Participants With Early Alzheimer's Disease (AD)
- NCT number
- NCT03443973
- Phases
- PHASE3
- Conditions
- Alzheimer Disease
- Interventions
- Gantenerumab, Placebo
- Lead sponsor
- Hoffmann-La Roche
- Results first posted
- 2024-01-17
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT03443973?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.
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