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Omecamtiv Mecarbil vs Placebo: serious adverse events

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

Measures 6

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

MeasureValue95% interval, lower95% interval, upperMethodNoteSource
Risk in group 10.5770.5620.592wilsonClinicalTrials.gov
Risk in group 20.5940.5790.609wilsonClinicalTrials.gov
Risk difference, group 1 minus group 2-0.0164-0.03770.00492newcombe hybrid scoreClinicalTrials.gov
Risk ratio, group 1 over group 20.9720.9381.01logClinicalTrials.gov
Odds ratio, group 1 over group 20.9350.8561.02logClinicalTrials.gov
Number needed to treat, for one fewer participant with a serious adverse event on Omecamtiv Mecarbil than on Placebo61from the risk difference intervalthe interval includes no differenceClinicalTrials.gov

Groups 2

Group 2 names the comparator: placebo.

GroupTitleDescriptionWith the outcomeAnalysedClinicalTrials.gov codeSource
Group 1Omecamtiv MecarbilParticipants received oral omecamtiv mecarbil BID. The starting dose was 25 mg; the dose may have been adjusted at week 4 to 37.5 or 50 mg based on the predose plasma concentration measured at week 2.2,3734,110EG001ClinicalTrials.gov
Group 2PlaceboParticipants received matching placebo tablets (BID).2,4354,101EG000ClinicalTrials.gov

Harm 2

FieldValueSource
What it countsTotal, serious adverse eventsClinicalTrials.gov
Time frame
All-cause mortality is reported from randomization until end of study (27 August 2020); median (min, max) time on study was 21.8 (0, 42) months. Adverse events are reported from first dose of study drug until 30 days after last dose; median (min, max) treatment duration was 19.5 (0, 42) months.
ClinicalTrials.gov

Trial 8

FieldValueSource
TitleRegistrational Study With Omecamtiv Mecarbil (AMG 423) to Treat Chronic Heart Failure With Reduced Ejection FractionClinicalTrials.gov
NCT numberNCT02929329ClinicalTrials.gov
PhasesPHASE3ClinicalTrials.gov
ConditionsHeart FailureClinicalTrials.gov
InterventionsOmecamtiv Mecarbil, Placebo, Standard of CareClinicalTrials.gov
Lead sponsorCytokineticsClinicalTrials.gov
Results first posted2021-07-20ClinicalTrials.gov
Results on ClinicalTrials.govhttps://clinicaltrials.gov/study/NCT02929329?tab=resultsClinicalTrials.gov

Source 4

FieldValueSource
Releasetrial-comparisons-2026-03-23-0.1.0ClinicalTrials.gov
Release manifest SHA-256f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57ClinicalTrials.gov
AACT copy2026-03-23ClinicalTrials.gov
Tables readoutcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquetClinicalTrials.gov

The same record as JSON

Release trial-comparisons-2026-03-23-0.1.0

ClinicalTrials.gov's posted results, through CTTI's AACT: ClinicalTrials.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.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.

ClinicalTrials.gov: none 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.