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Comparison · NCT01255670-sae

Penicillin and Metronidazole vs Penicillin and Placebo: serious adverse events

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. Penicillin and Metronidazole vs Penicillin and Placebo: serious adverse events. Trial comparisons, record NCT01255670-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01255670-sae

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Measures6

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

MeasureValue95% interval, lower95% interval, upperMethodNote
Risk in group 100.000000000000000003470.037wilson
Risk in group 200.000000000000000003470.037wilson
Risk difference, group 1 minus group 20-0.0370.037newcombe hybrid score
Risk ratio, group 1 over group 2loga group has no participants with the outcome
Odds ratio, group 1 over group 2loga cell of the two-by-two table is zero
Number needed to harmfrom the risk difference intervalthe two groups' risks are equal

Groups2

Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.

GroupTitleDescriptionWith the outcomeAnalysedClinicalTrials.gov code
Group 1Penicillin and Metronidazole
After incision and drainage 100 randomized patients receive penicillin and metronidazole as treatment of peritonsillar abscess.~Penicillin and metronidazole in peritonsillar abscess: Peroral Penicillin: 1000 000 IU 3 times a day for 10 days; Peroral metronidazole: 500 mg 3 times a day for 7 days.
0100EG000
Group 2Penicillin and Placebo
After incision and drainage 100 randomized patients receive penicillin and placebo as treatment of peritonsillar abscess.~Penicillin and metronidazole in peritonsillar abscess: Peroral Penicillin: 1000 000 IU 3 times a day for 10 days; Peroral metronidazole: 500 mg 3 times a day for 7 days.
0100EG001

Harm

What it counts
Total, serious adverse events
Time frame

Source ClinicalTrials.gov

Trial

Title
Penicillin and Metronidazole in Treatment of Peritonsillar Abscess
NCT number
NCT01255670
Phases
NA
Conditions
Peritonsillar Abscess
Interventions
penicillin and metronidazole in peritonsillar abscess
Lead sponsor
Helsinki University Central Hospital
Results first posted
2021-05-11

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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GET https://conductscience.org/api/comparisons/v1/NCT01255670-sae