Comparison · NCT00492232-sae
Ramelteon 8 mg QD vs Placebo QD: serious adverse events
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. Ramelteon 8 mg QD vs Placebo QD: serious adverse events. Trial comparisons, record NCT00492232-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT00492232-sae
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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 | 0.0566 | wilson | |
| Risk in group 2 | 0.0143 | 0.00253 | 0.0766 | wilson | |
| Risk difference, group 1 minus group 2 | -0.0143 | -0.0766 | 0.0435 | 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, for one fewer participant with a serious adverse event on Ramelteon 8 mg QD than on Placebo QD | 70 | 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 | Ramelteon 8 mg QD | Ramelteon 8 mg, tablets, orally, once daily for up to 10 weeks in the DBTP. | 0 | 64 | EG000 |
| Group 2 | Placebo QD | Ramelteon placebo-matching tablets, orally, once daily for up to 10 weeks in the DBTP. | 1 | 70 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
Treatment-emergent adverse events with onset dates the same or after the start of double-blind study medication and before the first dose of open-label study medication were summarized for the double-blind medication.
Source ClinicalTrials.gov
Trial
- Title
- Facilitation of Zolpidem (≥10 mg) Discontinuation Through Use of Ramelteon in Subjects With Chronic Insomnia
- NCT number
- NCT00492232
- Phases
- PHASE4
- Conditions
- Chronic Insomnia
- Interventions
- Ramelteon and zolpidem, Placebo and zolpidem
- Lead sponsor
- Takeda
- Results first posted
- 2009-07-17
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT00492232?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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