Comparison · NCT03941548-sae
CTP-543 12 mg BID vs CTP-543 24 mg 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. CTP-543 12 mg BID vs CTP-543 24 mg QD: serious adverse events. Trial comparisons, record NCT03941548-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT03941548-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 | 0.102 | wilson | |
| Risk in group 2 | 0.0313 | 0.00554 | 0.157 | wilson | |
| Risk difference, group 1 minus group 2 | -0.0313 | -0.157 | 0.0735 | 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 CTP-543 12 mg BID than on CTP-543 24 mg QD | 32 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | CTP-543 12 mg BID | Participants received 1 x 12 mg CTP-543 tablet and 1 x CTP-543 matching placebo tablet, BID for 24 weeks. | 0 | 34 | EG000 |
| Group 2 | CTP-543 24 mg QD | Participants received 24 mg (2 x 12 mg) CTP-543 tablets, QD and after 12 hours, received 2 x CTP-543 matching placebo tablets, QD for 24 weeks. | 1 | 32 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
- From first dose up to 28 weeks
Source ClinicalTrials.gov
Trial
- Title
- Efficacy and Tolerability Study of Two Dosing Regimens of CTP-543 in Adults With Alopecia Areata
- NCT number
- NCT03941548
- Phases
- PHASE2
- Conditions
- Alopecia Areata
- Interventions
- CTP-543, CTP-543 Matching Placebo
- Lead sponsor
- Concert Pharmaceuticals
- Results first posted
- 2023-04-05
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT03941548?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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