Comparison · NCT04790279-bfa8b4f2
Amlodipine vs Nifedipine ER: Breastfeeding Duration of 6+ Weeks
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. Amlodipine vs Nifedipine ER: Breastfeeding Duration of 6+ Weeks. Trial comparisons, record NCT04790279-bfa8b4f2. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT04790279-bfa8b4f2
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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 | 0.333 | 0.138 | 0.609 | wilson | |
| Risk in group 2 | 0.176 | 0.0619 | 0.41 | wilson | |
| Risk difference, group 1 minus group 2 | 0.157 | -0.148 | 0.456 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 1.89 | 0.514 | 6.94 | log | |
| Odds ratio, group 1 over group 2 | 2.33 | 0.413 | 13.2 | log | |
| Number needed to treat, for one more participant with the outcome on Amlodipine than on Nifedipine ER | 6.38 | 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 | Amlodipine | Amlodipine Per Protocol | 4 | 12 | OG000 |
| Group 2 | Nifedipine ER | Nifedipine ER Per Protocol | 3 | 17 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- Breastfeeding Duration of 6+ Weeks
- Description
- Time frame
- until 6 weeks postpartum
- Population
- Only includes patients who answered relevant question on breastfeeding questionnaire
Source ClinicalTrials.gov
Trial
- Title
- Amlodipine Versus Nifedipine ER for the Management of Postpartum Hypertension
- NCT number
- NCT04790279
- Phases
- PHASE4
- Conditions
- Hypertension in Pregnancy
- Interventions
- Amlodipine, NIFEdipine ER
- Lead sponsor
- Prisma Health-Upstate
- Results first posted
- 2024-10-28
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT04790279?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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