Comparison · NCT02477423-00f42777
Randomized & Blinded - Receiving Antibiotics vs Randomized & Blinded - Receiving Placebo: Necrotizing Enterocolitis (NEC)
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. Randomized & Blinded - Receiving Antibiotics vs Randomized & Blinded - Receiving Placebo: Necrotizing Enterocolitis (NEC). Trial comparisons, record NCT02477423-00f42777. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT02477423-00f42777
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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 | 0.0000000000000000278 | 0.242 | wilson | |
| Risk in group 2 | 0 | 0 | 0.204 | wilson | |
| Risk difference, group 1 minus group 2 | 0 | -0.204 | 0.242 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | log | a group has no participants with the outcome | |||
| Odds ratio, group 1 over group 2 | log | a cell of the two-by-two table is zero | |||
| Number needed to treat | from the risk difference interval | the two groups' risks are equal |
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 | Randomized & Blinded - Receiving Antibiotics | The infants within this arm of the study meet the inclusion criteria as being low risk. They will be randomized to receive routine ampicillin and gentamicin for the initial 48 hours of their life as a routine rule-out sepsis. Stool samples will be collected throughout hospitalization and at 18 months of life.~Ampicillin: Ampicillin will be given as routine antibiotic coverage for those in the active arm, as the standard initial antibiotic used within the neonatal unit. It may also be used for patients who are not eligible for randomization.~Gentamicins: Gentamicin will be given as routine antibiotic coverage for those in the active arm, as the standard initial antibiotic used within the neonatal unit. It may also be used for patients who are not eligible for randomization. | 0 | 12 | OG000 |
| Group 2 | Randomized & Blinded - Receiving Placebo | The infants within this arm of the study meet the inclusion criteria as being low risk. They will be randomized to receive placebo (saline) in place of ampicillin and gentamicin for the initial 48 hours of their life as a routine rule-out sepsis. Stool samples will be collected throughout hospitalization and at 18 months of life.~Placebo: Normal saline will be given as placebo for those in the placebo comparator group. | 0 | 15 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- Necrotizing Enterocolitis (NEC)
- Description
Any patient showing signs/symptoms of this acute neonatal gastrointestinal disease, including abdominal distension, bloody stools, systemic illness, and radiographic changes (pneumatosis intestinalis, portal venous gas, free intraperitoneal gas).
- Time frame
- 4-12 weeks
- Population
Source ClinicalTrials.gov
Trial
- Title
- A Randomized Controlled Trial Investigating if Antibiotic Use in the First 48 Hours of Life Adversely Impacts the Preterm Infant Microbiome
- NCT number
- NCT02477423
- Phases
- NA
- Conditions
- Premature Birth of Newborn, Enterocolitis, Necrotizing
- Interventions
- Ampicillin, Gentamicins, Placebo
- Lead sponsor
- University of Chicago
- Results first posted
- 2020-09-03
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT02477423?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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