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Trial · NCT03447990

v4 Study Evaluating the Safety, Tolerability and Preliminary Pharmacokinetics and Pharmacodynamics of MYK-491

NCT03447990, Phase 1, Phase 2, Completed, Bristol-Myers Squibb; results first posted 2023-02-02

3 sourcestrials-2026-11-12-0.4.0

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ConductScience Library. v4 Study Evaluating the Safety, Tolerability and Preliminary Pharmacokinetics and Pharmacodynamics of MYK-491. Trials, record NCT03447990. Release trials-2026-11-12-0.4.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03447990

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
v4 Study Evaluating the Safety, Tolerability and Preliminary Pharmacokinetics and Pharmacodynamics of MYK-491
NCT number
NCT03447990
Status
Completed
Phases
Phase 1, Phase 2
Enrollment
52 participants, actual
Lead sponsor
Bristol-Myers Squibb
Conditions
Heart Failure With Reduced Ejection Fraction, Dilated Cardiomyopathy
Interventions
MYK-491, Placebo
First posted
2018-02-27
Last updated
2023-02-02
Results first posted
2023-02-02

Source ClinicalTrials.gov

Registered outcomes23

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryNumber of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)From first dose to 30 days post last dose (Up to 2 months)Number of participants with any grade of treatment-emergent adverse events (TEAEs) and any grade of serious adverse events (SAEs).
PrimaryNumber of Participants With Change From Baseline in Electrocardiograms (ECG) Intervals - SAD CohortsBaseline, day 1-16, 2 hours pre-dose and at 3-, 5-, 9-, 12-, 24-, and 36-hours post-doseNumber of participants with change from baseline in ECGs QTcF, PR, and QRS intervals. Baseline is defined as the last non-missing value prior to the corresponding period.
PrimaryNumber of Participants With Change From Baseline in Electrocardiograms (ECG) Intervals - MAD CohortsBaseline, Day 1-16, 2 hours pre-dose and at 7-, 24-, and 48-hours post final doseNumber of participants with change from baseline in ECGs QTcF, PR, and QRS intervals. Baseline is defined as the last non-missing value prior to first randomized dose.
PrimaryMean Change From Baseline in Vital Signs Part 1 - SAD CohortsBaseline and at 6-hours post-dose
Mean change from baseline in supine systolic blood pressure (SBP) and supine diastolic blood pressure (DBP) vital signs. Baseline is defined as the last non-missing value prior to the corresponding period.
PrimaryMean Change From Baseline in Vital Signs Part 1 - MAD CohortsBaseline and at 6-hours post-dose
Mean change from baseline in supine systolic blood pressure (SBP) and supine diastolic blood pressure (DBP) vital signs. Baseline is defined as the last non-missing value prior to first randomized dose
PrimaryMean Change From Baseline in Vital Signs Part 2 - SAD CohortsBaseline and at 6-hours post-doseMean change from baseline in heart rate (HR) vital signs. Baseline is defined as the last non-missing value prior to the corresponding period.
PrimaryMean Change From Baseline in Vital Signs Part 2 - MAD CohortsBaseline and at 6-hours post-doseMean change from baseline in heart rate (HR) vital signs. Baseline is defined as the last non-missing value prior to first randomized dose
PrimaryNumber of Participants With a Troponin I Increase - SAD CohortsBaseline, day 1-3, 2 hours pre-dose and at 3-, 5-, 9-, 12-, 24-, and 36-hours post-dose
Number of participants with a troponin increase is defined as when one of the following conditions was met (1) if the participant's troponin I value was normal prior to dosing (≤0.03 ng/mL), an elevated level on at least one measurement after start of dosing \>2×ULN for the specific assay (\>0.06 ng/mL) through Day 16. (2) If the participant's troponin I value was above the ULN for the specific assay prior to dosing, an increase \>0.03 ng/mL compared to baseline on at least one measurement after start of dosing through Day 16.
PrimaryNumber of Participants With a Troponin I Increase - MAD CohortsBaseline, pre-dose and 7hr post dose on treatment day 1, day 2, day 5 and pre-dose and at 7-, 24-, and 48-hours post final dose
Number of participants with a troponin increase is defined as when one of the following conditions was met (1) if the participant's troponin I value was normal prior to dosing (≤0.03 ng/mL), an elevated level on at least one measurement after start of dosing \>2×ULN for the specific assay (\>0.06 ng/mL) through Day 16. (2) If the participant's troponin I value was above the ULN for the specific assay prior to dosing, an increase \>0.03 ng/mL compared to baseline on at least one measurement after start of dosing through Day 16.
PrimaryNumber of Participants With Clinically Significant Laboratory AbnormalitiesFrom first dose to 30 days post last dose (Up to 2 months)Number of participants with clinically significant laboratory abnormalities.

Outcomes23

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)From first dose to 30 days post last dose (Up to 2 months)All treated participants per regimen dosageParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With Change From Baseline in Electrocardiograms (ECG) Intervals - SAD CohortsBaseline, day 1-16, 2 hours pre-dose and at 3-, 5-, 9-, 12-, 24-, and 36-hours post-doseAll treated participants in SAD Cohorts per regimen dosageParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With Change From Baseline in Electrocardiograms (ECG) Intervals - MAD CohortsBaseline, Day 1-16, 2 hours pre-dose and at 7-, 24-, and 48-hours post final doseAll treated participants in MAD Cohorts per regimen dosageParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYMean Change From Baseline in Vital Signs Part 1 - SAD CohortsBaseline and at 6-hours post-doseAll treated participants in SAD Cohorts per regimen dosagemmHgMEAN
PRIMARYMean Change From Baseline in Vital Signs Part 1 - MAD CohortsBaseline and at 6-hours post-dosePre-specified for data to be collected by combining all treated participants with vital signs measurements in MAD Cohorts per regimen onlymmHgMEAN
PRIMARYMean Change From Baseline in Vital Signs Part 2 - SAD CohortsBaseline and at 6-hours post-doseAll treated participants in SAD Cohorts per regimen dosageBeats/minMEAN
PRIMARYMean Change From Baseline in Vital Signs Part 2 - MAD CohortsBaseline and at 6-hours post-dosePre-specified for data to be collected by combining all treated participants with vital signs measurements in MAD Cohorts per regimen onlyBeats/minMEAN
PRIMARYNumber of Participants With a Troponin I Increase - SAD CohortsBaseline, day 1-3, 2 hours pre-dose and at 3-, 5-, 9-, 12-, 24-, and 36-hours post-dosePre-specified for data to be collected by combining all treated participants in SAD Cohorts per regimen onlyParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With a Troponin I Increase - MAD CohortsBaseline, pre-dose and 7hr post dose on treatment day 1, day 2, day 5 and pre-dose and at 7-, 24-, and 48-hours post final dosePre-specified for data to be collected by combining all treated participants in MAD Cohorts per regimen onlyParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With Clinically Significant Laboratory AbnormalitiesFrom first dose to 30 days post last dose (Up to 2 months)Pre-specified for data to be collected by combining all treated participants per SAD and MAD Cohort onlyParticipantsCOUNT_OF_PARTICIPANTS

Results by group209

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAD Cohort 1 Danicamtiv 175mgTEAEs2Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAD Cohort 1 Danicamtiv 350mgTEAEs5Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAD Cohort 1 PlaceboTEAEs3Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAD Cohort 1 Danicamtiv 450mgTEAEs0Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAD Cohort 1 Danicamtiv 525mgTEAEs0Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAD Cohort 1 Danicamtiv 550mgTEAEs1Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAD Cohort 2 Danicamtiv 400mgTEAEs3Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAD Cohort 2 Danicamtiv 500mgTEAEs0Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAD Cohort 2 PlaceboTEAEs0Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)MAD Cohort 2 Danicamtiv 50mgTEAEs7Participants

Participant flow49

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDSAD Cohort 18
Overall StudySTARTEDSAD Cohort 24
Overall StudySTARTEDMAD Cohort 16
Overall StudySTARTEDMAD Cohort 29
Overall StudySTARTEDMAD Cohort 39
Overall StudySTARTEDMAD Cohort 46
Overall StudySTARTEDMAD Placebo10
Overall StudyCompleted Blinded Treatment Period ASAD Cohort 18
Overall StudyCompleted Blinded Treatment Period ASAD Cohort 24
Overall StudyCompleted Blinded Treatment Period AMAD Cohort 10

Adverse events900

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersSAD Cohort 1 Danicamtiv 175mg08
otherAnaemiaBlood and lymphatic system disordersSAD Cohort 1 Danicamtiv 350mg08
otherAnaemiaBlood and lymphatic system disordersSAD Cohort 1 Placebo08
otherAnaemiaBlood and lymphatic system disordersSAD Cohort 1 Danicamtiv Optional Period D06
otherAnaemiaBlood and lymphatic system disordersSAD Cohort 2 Danicamtiv 400mg14
otherAnaemiaBlood and lymphatic system disordersSAD Cohort 2 Danicamtiv 500mg04
otherAnaemiaBlood and lymphatic system disordersSAD Cohort 2 Placebo04
otherAnaemiaBlood and lymphatic system disordersMAD Cohort 1 Danicamtiv 75mg06
otherAnaemiaBlood and lymphatic system disordersMAD Cohort 1 Placebo02
otherAnaemiaBlood and lymphatic system disordersMAD Cohort 2 Danicamtiv 50mg09

Adverse event totals45

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalitySAD Cohort 1 Danicamtiv 175mg08
Total, all-cause mortalitySAD Cohort 1 Danicamtiv 350mg08
Total, all-cause mortalitySAD Cohort 1 Placebo08
Total, all-cause mortalitySAD Cohort 1 Danicamtiv Optional Period D06
Total, all-cause mortalitySAD Cohort 2 Danicamtiv 400mg04
Total, all-cause mortalitySAD Cohort 2 Danicamtiv 500mg04
Total, all-cause mortalitySAD Cohort 2 Placebo04
Total, all-cause mortalityMAD Cohort 1 Danicamtiv 75mg06
Total, all-cause mortalityMAD Cohort 1 Placebo02
Total, all-cause mortalityMAD Cohort 2 Danicamtiv 50mg09

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons4

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
SAD Cohorts vs MAD Cohorts: Number of Participants With Clinically Significant Physical Examinations AbnormalitiesTrial comparisons
SAD Cohorts vs MAD Cohorts: Number of Participants With Clinically Significant Laboratory AbnormalitiesTrial comparisons
MAD Cohorts Danicamtiv vs MAD Cohorts Placebo: Number of Participants With a Troponin I Increase - MAD CohortsTrial comparisons
SAD Cohorts Danicamtiv vs SAD Cohorts Placebo: Number of Participants With a Troponin I Increase - SAD CohortsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Source

Release
trials-2026-11-12-0.4.0
Release manifest SHA-256
0f4a8d8c48aee2a7573ae0fa94ecbeab70c1adbe449bbc95c424bc7d3e97b9d4
Registry capture
2026-11-12
Results copy, AACT
2026-03-23
NIH clinical studies file
2026-11-13

Source ClinicalTrials.gov

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNone stated
  • NIH RePORTER's clinical studies and project filesPublic domain
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
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03447990

GET https://conductscience.org/api/trials/v1/NCT03447990/registered?page=2