Comparison · NCT01537926-aa60fc30
N-acetylcysteine (NAC) vs Placebo: Retention as Assessed by Number of Participants Who Completed the Study
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: Retention as Assessed by Number of Participants Who Completed the Study. Trial comparisons, record NCT01537926-aa60fc30. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01537926-aa60fc30
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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 | 0.828 | 0.655 | 0.924 | wilson | |
| Risk in group 2 | 0.846 | 0.578 | 0.957 | wilson | |
| Risk difference, group 1 minus group 2 | -0.0186 | -0.224 | 0.267 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.978 | 0.735 | 1.3 | log | |
| Odds ratio, group 1 over group 2 | 0.873 | 0.146 | 5.22 | log | |
| Number needed to treat, for one fewer participant with the outcome on N-acetylcysteine (NAC) than on Placebo | 53.9 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: placebo.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | N-acetylcysteine (NAC) | N-acetylcysteine 600mg by mouth every 12 hours for 90 days. N-acetylcysteine 1200mg by mouth every 12 hours for 270 days~N-acetylcysteine: NAC 600mg capsule or matching Placebo , 1 twice daily for 90 days, then increase to NAC 1,200mg or matching placebo, 2 capsules twice daily for 270 days. | 24 | 29 | OG000 |
| Group 2 | Placebo | Placebo 1 cap by mouth every 12 hours for 90 days. Placebo 2 caps by mouth every 12 hours for 270 days.~Placebo: sugar pill manufactured to mimic NAC 600mg capsule | 11 | 13 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- PRIMARY
- Title
- Retention as Assessed by Number of Participants Who Completed the Study
- Description
- Time frame
- from baseline to 12 months
- Population
Source ClinicalTrials.gov
Trial
- Title
- Hypertrophic Regression With N-Acetylcysteine in HCM
- NCT number
- NCT01537926
- Phases
- PHASE1
- Conditions
- Hypertrophic Cardiomyopathy
- Interventions
- N-acetylcysteine, Placebo
- Lead sponsor
- The University of Texas Health Science Center, Houston
- Results first posted
- 2021-11-02
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT01537926?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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