Comparison · NCT03482713-a0cf92c8
Gefapixant 45 mg vs Placebo: Number of Participants Who Discontinued Study Treatment Due to an Adverse Event
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. Gefapixant 45 mg vs Placebo: Number of Participants Who Discontinued Study Treatment Due to an Adverse Event. Trial comparisons, record NCT03482713-a0cf92c8. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT03482713-a0cf92c8
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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 | 0.0909 | 0.0162 | 0.377 | wilson | |
| Risk in group 2 | 0 | 0.0000000000000000278 | 0.242 | wilson | |
| Risk difference, group 1 minus group 2 | 0.0909 | -0.163 | 0.377 | 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 more participant with the outcome on Gefapixant 45 mg than on Placebo | 11 | 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 | Gefapixant 45 mg | Participants received a gefapixant 45 mg film-coated tablet twice daily for 28 days. | 1 | 11 | OG000 |
| Group 2 | Placebo | Participants received a film-coated placebo tablet matching gefapixant twice daily for 28 days. | 0 | 12 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- PRIMARY
- Title
- Number of Participants Who Discontinued Study Treatment Due to an Adverse Event
- Description
- An adverse event is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment.
- Time frame
- Up to 4 weeks
- Population
- All randomized participants who received at least one dose of study treatment.
Source ClinicalTrials.gov
Trial
- Title
- Study of Gefapixant (MK-7264) in Adult Japanese Participants With Unexplained or Refractory Chronic Cough (MK-7264-033)
- NCT number
- NCT03482713
- Phases
- PHASE2
- Conditions
- Chronic Cough
- Interventions
- Gefapixant 45 mg, Placebo
- Lead sponsor
- Merck Sharp & Dohme LLC
- Results first posted
- 2019-07-05
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT03482713?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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