Comparison · NCT01176565-2bd30bf5
Standard SBP Reduction Arm vs Intensive SBP Reduction Arm: Hematoma Expansion (Number of Patients With Hematoma Expansion of 33% or Greater Between the Baseline and 24 +/- 6 Hours Head CTs, as Measured by the Central Reader for Patients With Readable Scans for Both Time Points Submitted by Data Lock.)
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
Download JSON
Cite this record
ConductScience Library. Standard SBP Reduction Arm vs Intensive SBP Reduction Arm: Hematoma Expansion (Number of Patients With Hematoma Expansion of 33% or Greater Between the Baseline and 24 +/- 6 Hours Head CTs, as Measured by the Central Reader for Patients With Readable Scans for Both Time Points Submitted by Data Lock.). Trial comparisons, record NCT01176565-2bd30bf5. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01176565-2bd30bf5
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 | 0.244 | 0.206 | 0.287 | wilson | |
| Risk in group 2 | 0.189 | 0.155 | 0.228 | wilson | |
| Risk difference, group 1 minus group 2 | 0.0552 | 0.000704 | 0.11 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 1.29 | 1 | 1.67 | log | |
| Odds ratio, group 1 over group 2 | 1.39 | 1 | 1.92 | log | |
| Number needed to treat, for one more participant with the outcome on Standard SBP Reduction Arm than on Intensive SBP Reduction Arm | 18.1 | 9.12 | 1,420 | from the risk difference interval |
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 | Standard SBP Reduction Arm | Nicardipine hydrochloride was used according to need as the primary agent in lowering systolic blood pressure (SBP).~The goal for the standard blood pressure reduction group was to reduce and maintain SBP under 180 mmHg for 24 hours from randomization. The target SBP for this treatment arm was approximately 160 mmHg (the center of the assigned treatment group range of SBP 140-179 mmHg).~Nicardipine hydrochloride: IV nicardipine is initiated at a rate of 5 mg/hr, is continued, and is increased by 2.5 mg/hr increments every 15 min until the target SBP or maximum dose of 15 mg/hr is reached.~If SBP was greater than the target SBP despite infusion of the maximum nicardipine dose for 30 minutes, a second agent could be used (Labetalol 5-20 mg IV bolus every 15 min; urapidil substituted in countries without labetalol available) for another hour. Nicardipine use was to be decreased incrementally or was discontinued if SBP fell below the assigned treatment range. | 104 | 426 | OG000 |
| Group 2 | Intensive SBP Reduction Arm | Nicardipine hydrochloride was used according to need as the primary agent in lowering systolic blood pressure (SBP).~The goal for the intensive blood pressure reduction group was to reduce and maintain SBP under 140 mmHg for 24 hours from randomization. The target SBP for this treatment arm was 125 mmHg (the center of the treatment group range SBP 110 - 139 mmHg).~Nicardipine hydrochloride: IV nicardipine is initiated at a rate of 5 mg/hr, is continued, and is increased by 2.5 mg/hr increments every 15 min until the target SBP or maximum dose of 15 mg/hr is reached.~If SBP was greater than the target SBP after infusion of the maximum nicardipine dose for 30 min, a second agent could be used (Labetalol 5-20 mg IV bolus every 15 min; urapidil substituted in countries without labetalol available) for another hour. Nicardipine use was decreased incrementally or was discontinued if SBP fell below the assigned treatment range. Fluid bolus was given if needed for hypotension. | 85 | 450 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
Hematoma Expansion (Number of Patients With Hematoma Expansion of 33% or Greater Between the Baseline and 24 +/- 6 Hours Head CTs, as Measured by the Central Reader for Patients With Readable Scans for Both Time Points Submitted by Data Lock.)
- Description
Hematoma expansion as determined by serial CT scans: Hematoma expansion was defined as an increase in the volume of intraparenchymal hemorrhage of 33% or greater as measured by a central imaging analyst who was was unaware of the treatment assignments, clinical findings, and time points of image acquisition. The area of the hematoma was delineated by image analysis software with the use of density thresholds on each slice, followed by manual correction. To ensure accuracy and consistency of the readings, images were coded randomly and independently of subject numbers and manual correction was also done without awareness of treatment assignments, clinical findings, or time points of image acquisition. This data point is defined as being present (hematoma expansion of 33% or more was calculated between the baseline scan hematoma volume and the 24 +/- 6 hours hematoma volume measures at data analysis), meaning that hematoma expansion as defined must have occurred or it was not counted.
- Time frame
- From the baseline head CT to the 24 +/- 6 hours from randomization head CT
- Population
Participants with readable head CTs at baseline and 24 +/- 6 hours from randomization (submitted before data lock) were analyzed. Hematoma expansion was only recorded as present if ≥ 33% volume increase was calculated. Scans done outside of time window + margin, submitted after data lock, or not readable in standard DICOM format could not be used.
Source ClinicalTrials.gov
Trial
- Title
- Antihypertensive Treatment of Acute Cerebral Hemorrhage-II
- NCT number
- NCT01176565
- Phases
- PHASE3
- Conditions
- Intracerebral Hemorrhage
- Interventions
- Intravenous nicardipine hydrochloride
- Lead sponsor
- University of Minnesota
- Results first posted
- 2017-04-25
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT01176565?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/NCT01176565-2bd30bf5