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Comparison · NCT00993265-sae

N-acetylcysteine (NAC) vs 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. N-acetylcysteine (NAC) vs Placebo: serious adverse events. Trial comparisons, record NCT00993265-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT00993265-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 1000.161wilson
Risk in group 2000.168wilson
Risk difference, group 1 minus group 20-0.1680.161newcombe 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

Group 2 names the comparator: placebo.

GroupTitleDescriptionWith the outcomeAnalysedClinicalTrials.gov code
Group 1N-acetylcysteine (NAC)
Patients randomized to this arm will receive N-Acetylcysteine, at a standard dose titrated to 2400 mg. They will receive NAC in addition to the medication regimen they are on at enrollment.~N-Acetylcysteine: 2400 mg by mouth PO (1200 mg AM, 1200 mg PM), 12 weeks
020EG000
Group 2Placebo
Patients randomized to this arm will receive placebo, formulated to be indistinguishable from N-Acetylcysteine, in addition to the medication regimen they are on at study enrollment.~Placebo: placebo, 2 capsules by mouth in AM, 2 capsules by mouth PM, 12 weeks
019EG001

Harm

What it counts
Total, serious adverse events
Time frame

Source ClinicalTrials.gov

Trial

Title
N-Acetylcysteine for Pediatric Trichotillomania
NCT number
NCT00993265
Phases
PHASE2
Conditions
Trichotillomania, Hair Pulling
Interventions
N-Acetylcysteine, Placebo
Lead sponsor
Yale University
Results first posted
2014-07-25

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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