Comparison · NCT04770753-sae
Mitapivat 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
Cite this record
ConductScience Library. Mitapivat vs Placebo: serious adverse events. Trial comparisons, record NCT04770753-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT04770753-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 | 0.062 | 0.0318 | 0.118 | wilson | |
| Risk in group 2 | 0 | 0.00000000000000000347 | 0.0575 | wilson | |
| Risk difference, group 1 minus group 2 | 0.062 | -0.00293 | 0.118 | 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 harm, for one more participant with a serious adverse event on Mitapivat than on Placebo | 16.1 | 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 | Mitapivat | Participants randomized to receive Mitapivat 100 milligrams (mg), orally, twice daily (BID) for 24 weeks in double blind period and for up to 5 years in open label extension period. | 8 | 129 | EG000 |
| Group 2 | Placebo | Participants randomized to receive placebo matching mitapivat, orally, BID for 24 weeks in double blind period followed by Mitapivat 100 mg, orally, BID for up to 5 years in open label extension period. | 0 | 63 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
- Double-blind period: From the time of signing informed consent to Week 24
Source ClinicalTrials.gov
Trial
- Title
- A Study Evaluating the Efficacy and Safety of Mitapivat in Participants With Non-Transfusion-Dependent Alpha- or Beta-Thalassemia (α- or β-NTDT)
- NCT number
- NCT04770753
- Phases
- PHASE3
- Conditions
- Non-Transfusion-dependent Alpha-Thalassemia, Non-Transfusion-dependent Beta-Thalassemia
- Interventions
- Placebo Matching Mitapivat, Mitapivat
- Lead sponsor
- Agios Pharmaceuticals, Inc.
- Results first posted
- 2025-01-24
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT04770753?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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