Trial Outcomes & Findings for A Study to Evaluate the Efficacy, Safety, and Tolerability of MYK-224 in Participants With Symptomatic Obstructive Hypertrophic Cardiomyopathy (NCT NCT05556343)

NCT ID: NCT05556343

Last Updated: 2026-06-02

Results Overview

LVEF was assessed using transthoracic echocardiogram (TTE) in resting state. 90% CIs are calculated based on Exact Binomial proportion test. LVEF value was calculated by Simpson Biplane method.

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

18 participants

Primary outcome timeframe

From first dose (Day 1) until study end date in Part A or 30 days after early termination date (Median 17.55 weeks and Maximum 54.9 weeks)

Results posted on

2026-06-02

Participant Flow

Participant milestones

Participant milestones
Measure
Part A - Dose Treatment - MYK-224
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part B - Open Label Extension - MYK-224
All participants received MYK-224 as a once-daily oral dose. Treatment administration, consisting of either MYK-224 alone or MYK-224 in combination with beta blockers, began on Day 1B. Each participant received the same dose completed in Part A, unless there were changes to background HCM therapy after Part A. The planned study drug exposure was approximately 108 weeks. The actual median duration of exposure in Part B was 51.90 weeks. Minimum exposure was 28.7 weeks and maximum was 64.1 weeks.
Part A - Dose Treatment
STARTED
18
0
Part A - Dose Treatment
COMPLETED
17
0
Part A - Dose Treatment
NOT COMPLETED
1
0
Part B - Open Label Extension
STARTED
0
16
Part B - Open Label Extension
COMPLETED
0
0
Part B - Open Label Extension
NOT COMPLETED
0
16

Reasons for withdrawal

Reasons for withdrawal
Measure
Part A - Dose Treatment - MYK-224
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part B - Open Label Extension - MYK-224
All participants received MYK-224 as a once-daily oral dose. Treatment administration, consisting of either MYK-224 alone or MYK-224 in combination with beta blockers, began on Day 1B. Each participant received the same dose completed in Part A, unless there were changes to background HCM therapy after Part A. The planned study drug exposure was approximately 108 weeks. The actual median duration of exposure in Part B was 51.90 weeks. Minimum exposure was 28.7 weeks and maximum was 64.1 weeks.
Part A - Dose Treatment
Other reasons
1
0
Part B - Open Label Extension
Study terminated by sponsor
0
16

Baseline Characteristics

Analysis only included for participants with data available at the baseline

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Age, Continuous
59.8 years
STANDARD_DEVIATION 9.08 • n=18 Participants
Sex: Female, Male
Female
5 Participants
n=18 Participants
Sex: Female, Male
Male
13 Participants
n=18 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
n=18 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
14 Participants
n=18 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
n=18 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=18 Participants
Race (NIH/OMB)
Asian
0 Participants
n=18 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=18 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=18 Participants
Race (NIH/OMB)
White
17 Participants
n=18 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=18 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=18 Participants
BACKGROUND HCM THERAPY
BETA BLOCKER USE AT BASELINE
9 Participants
n=18 Participants
BACKGROUND HCM THERAPY
CALCIUM CHANNEL BLOCKER USE AT BASELINE
0 Participants
n=18 Participants
BACKGROUND HCM THERAPY
DISOPYRAMIDE USE AT BASELINE
0 Participants
n=18 Participants
BACKGROUND HCM THERAPY
NONE
9 Participants
n=18 Participants
Implantable Cardioverter Defibrillator (ICD) Therapy Use
Yes
5 Participants
n=18 Participants
Implantable Cardioverter Defibrillator (ICD) Therapy Use
No ICD use
13 Participants
n=18 Participants
NYHA FUNCTIONAL CLASS
CLASS I
1 Participants
n=18 Participants
NYHA FUNCTIONAL CLASS
CLASS II
12 Participants
n=18 Participants
NYHA FUNCTIONAL CLASS
CLASS III
5 Participants
n=18 Participants
NYHA FUNCTIONAL CLASS
CLASS IV
0 Participants
n=18 Participants
LEFT VENTRICULAR EJECTION FRACTION
65.4 percentage
STANDARD_DEVIATION 4.23 • n=18 Participants
LVOT PEAK GRADIENT FOR RESTING
74.516 mmHg
STANDARD_DEVIATION 35.5013 • n=18 Participants
LVOT PEAK GRADIENT FOR VALSALVA
94.968 mmHg
STANDARD_DEVIATION 35.6349 • n=18 Participants
LVOT PEAK GRADIENT FOR POST-EXERCISE
93.626 mmHg
STANDARD_DEVIATION 38.6472 • n=18 Participants
Kansas City Cardiomyopathy Questionnaire (23-item version) Clinical Summary Score
73.9583 Score on a Scale
n=14 Participants • Analysis only included for participants with data available at the baseline
NT-PROBNP
660.0 Pg/ml
n=18 Participants
Medical History
Atrial Fibrillation
5 Participants
n=18 Participants
Medical History
Coronary Artery Disease
3 Participants
n=18 Participants
Medical History
Diabetes Mellitus
3 Participants
n=18 Participants
Medical History
Hypertension
8 Participants
n=18 Participants

PRIMARY outcome

Timeframe: From first dose (Day 1) until study end date in Part A or 30 days after early termination date (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A.

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a pre-existing medical condition in a clinical investigation participant administered study treatment and that does not necessarily have a causal relationship with this treatment. Serious Adverse Event (SAE) is defined as any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalization or causes prolongation of existing hospitalization.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Number of Participants With Adverse Events and Serious Adverse Events
Participants with at least one adverse events in Part A
15 Participants
Part A: Number of Participants With Adverse Events and Serious Adverse Events
Participants with at least one serious adverse events in Part A
0 Participants

PRIMARY outcome

Timeframe: From first dose (Day 1) until study end date in Part A or 30 days after early termination date (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A.

Arrhythmias included atrial fibrillation/flutter (new from screening and recurrent), ventricular tachyarrhythmias (ventricular tachycardia, ventricular fibrillation, and Torsades de Pointe).

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Number of Participants With at Least One Event of Arrhythmias
Atrial Fibrillation/Flutter
2 Participants
Part A: Number of Participants With at Least One Event of Arrhythmias
Ventricular Tachyarrhythmias
1 Participants

PRIMARY outcome

Timeframe: From first dose (Day 1) until study end date in Part A or 30 days after early termination date (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Number of Participants With at Least One Event of Appropriate Implantable Cardioverter Defibrillator Therapy and Resuscitated Cardiac Arrest
1 Participants

PRIMARY outcome

Timeframe: Baseline and until treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A. Only participants with data available at the specified timepoint are included in the analysis.

Baseline is defined as the last non-missing value in date/time recorded before the first dose of MYK-224. Heart rate was measured in rested state.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Change From Baseline in Vital Signs - Heart Rate
0.9 beats per minute
Standard Deviation 8.96

PRIMARY outcome

Timeframe: Baseline and until treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A. Only participants with data available at the specified timepoint are included in the analysis.

Baseline is defined as the last non-missing value in date/time recorded before the first dose of MYK-224. Systolic blood pressure was measured in rested state.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Change From Baseline in Vital Signs - Mean Systolic Blood Pressure
2.5 mmHg
Standard Deviation 18.25

PRIMARY outcome

Timeframe: Baseline and until treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A. Only participants with data available at the specified timepoint are included in the analysis.

Baseline is defined as the last non-missing value in date/time recorded before the first dose of MYK-224. Diastolic blood pressure was measured in rested state.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Change From Baseline in Vital Signs - Mean Diastolic Blood Pressure
4.2 mmHg
Standard Deviation 12.62

PRIMARY outcome

Timeframe: Baseline and until treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A. Only participants with data available at the specified timepoint are included in the analysis.

Baseline is defined as the last non-missing value in date/time recorded before the first dose of MYK-224. Respiratory rate was measured in rested state.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Change From Baseline in Vital Signs - Respiratory Rate
0.6 breaths per minute
Standard Deviation 2.23

PRIMARY outcome

Timeframe: Baseline and until treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A. Only participants with data available at the specified timepoint are included in the analysis.

Baseline is defined as the last non-missing value in date/time recorded before the first dose of MYK-224.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=17 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Change From Baseline in Vital Signs - Temperature
-0.09 Celsius
Standard Deviation 0.280

PRIMARY outcome

Timeframe: Baseline and until treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A. Only participants with data available at the specified timepoint are included in the analysis.

Baseline is defined as the last non-missing value in date/time recorded before the first dose of MYK-224.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Change From Baseline in Vital Signs - Weight
0.89 kilogram
Standard Deviation 3.168

PRIMARY outcome

Timeframe: Baseline and until study end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A.

The complete physical examination included weight and calculated BMI, a neurological examination (gross motor and deep tendon reflexes),and an assessment of the following: general appearance, skin, head and neck, mouth, lymph nodes, thyroid, abdomen, musculoskeletal, cardiovascular, neurological, and respiratory systems with other systems included, as directed by interval history.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Number of Participants With Abnormal Physical Examination Results
Cardiovascular
11 Participants
Part A: Number of Participants With Abnormal Physical Examination Results
Skin
1 Participants
Part A: Number of Participants With Abnormal Physical Examination Results
Other
1 Participants

PRIMARY outcome

Timeframe: Baseline and until study end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A. Only participants with data available at the specified timepoint are included in the analysis.

Twelve-lead ECG evaluations will be performed in the supine position after 10 minutes of rest at Screening and at selected clinic visits prior to MYK-224 dosing and before any blood sample collection. QTc prolongation is defined by either the mean of QTcF \> 499 or mean of QTcB \> 499 according to the project requirement specification from Clario.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=17 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
ST DEPRESSION (end date)
2 Participants
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
T WAVES FLAT (Baseline)
1 Participants
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
T WAVES FLAT (end date
1 Participants
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
T WAVE INVERSION (Baseline)
7 Participants
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
QTC PROLONGATION (Baseline)
3 Participants
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
QTC PROLONGATION (end date)
2 Participants
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
ST DEPRESSION (Baseline)
4 Participants
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
T WAVE INVERSION (end date)
3 Participants
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
ATRIAL FIBRILLATION/FLUTTER (Baseline)
5 Participants
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Results
ATRIAL FIBRILLATION/FLUTTER (End date)
1 Participants

PRIMARY outcome

Timeframe: Baseline and untill end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A.

Blood samples were collected to assess the clinical laboratory parameters.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Number of Participants With Adverse Events Related to Clinical Laboratory Parameters (Hematology, Chemistry and Urinalysis)
Chemistry (Elevated Alanine Aminotransferase)
1 Participants
Part A: Number of Participants With Adverse Events Related to Clinical Laboratory Parameters (Hematology, Chemistry and Urinalysis)
Chemistry (Transaminases increased)
1 Participants
Part A: Number of Participants With Adverse Events Related to Clinical Laboratory Parameters (Hematology, Chemistry and Urinalysis)
Hematology
0 Participants
Part A: Number of Participants With Adverse Events Related to Clinical Laboratory Parameters (Hematology, Chemistry and Urinalysis)
Urinalysis
0 Participants

PRIMARY outcome

Timeframe: From first dose (Day 1) until study end date in Part A or 30 days after early termination date (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A.

LVEF was assessed using transthoracic echocardiogram (TTE) in resting state. 90% CIs are calculated based on Exact Binomial proportion test. LVEF value was calculated by Simpson Biplane method.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A:Percentage of Participants With Incidence of Symptomatic Left Ventricular Ejection Fraction (LVEF) < 50%
0 percentage of participants
Interval 0.0 to 0.0

PRIMARY outcome

Timeframe: From first dose (Day 1) until study end date in Part A or 30 days after early termination date (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Safety A population consist of all enrolled participants who received at least 1 dose of MYK-224. Pre-specified to be analyzed for Part A.

LVEF was assessed using transthoracic echocardiogram (TTE) in resting state. 90% CIs are calculated based on Exact Binomial proportion test. LVEF value was calculated by Simpson Biplane method.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Percentage of Participants With Incidence of Symptomatic Left Ventricular Ejection Fraction (LVEF) <= 30%
0 percentage of participants
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: Treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Efficacy/PD A population included All enrolled A participants who receive at least 1 dose of MYK-224 and have primary or secondary endpoint data, including a baseline value and at least 1 post-baseline value Pre-specified to be analyzed for Part A.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=15 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Aggregate Mean of Left Ventricular Ejection Fraction (LVEF)
65.0 percentage
Standard Deviation 4.09

SECONDARY outcome

Timeframe: Baseline and until treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Efficacy/PD A population included All enrolled A participants who receive at least 1 dose of MYK-224 and have primary or secondary endpoint data, including a baseline value and at least 1 post-baseline value Pre-specified to be analyzed for Part A.

Baseline is defined as the last non-missing value in date/time recorded before the first dose of MYK-224. Participants with data available at the timepoint were included in the analysis.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=15 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Change From Baseline in Left Ventricular Ejection Fraction (LVEF)
0.1 percentage
Standard Deviation 4.31

SECONDARY outcome

Timeframe: Treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Efficacy/PD A population included All enrolled A participants who receive at least 1 dose of MYK-224 and have primary or secondary endpoint data, including a baseline value and at least 1 post-baseline value Pre-specified to be analyzed for Part A.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Aggregate Mean of Left Ventricular Outflow Tract (LVOT) Peak Gradient (Post-Exercise, Resting, and Valsalva)
Resting LVOT
25.423 mmHg
Standard Deviation 23.5685
Part A: Aggregate Mean of Left Ventricular Outflow Tract (LVOT) Peak Gradient (Post-Exercise, Resting, and Valsalva)
Valsalva LVOT
43.888 mmHg
Standard Deviation 36.1765
Part A: Aggregate Mean of Left Ventricular Outflow Tract (LVOT) Peak Gradient (Post-Exercise, Resting, and Valsalva)
Post-Exercise LVOT
56.965 mmHg
Standard Deviation 45.1914

SECONDARY outcome

Timeframe: Treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Efficacy/PD A population included All enrolled A participants who receive at least 1 dose of MYK-224 and have primary or secondary endpoint data, including a baseline value and at least 1 post-baseline value Pre-specified to be analyzed for Part A.

Baseline is defined as the last non-missing value in date/time recorded before the first dose of MYK-224. Participants with data available at the timepoint were included in the analysis.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Change From Baseline in Left Ventricular Outflow Tract (LVOT) Peak Gradient (Post-Exercise, Resting, and Valsalva)
Resting LVOT
-49.093 mmHg
Standard Deviation 30.9153
Part A: Change From Baseline in Left Ventricular Outflow Tract (LVOT) Peak Gradient (Post-Exercise, Resting, and Valsalva)
Valsalva LVOT
-51.079 mmHg
Standard Deviation 36.1091
Part A: Change From Baseline in Left Ventricular Outflow Tract (LVOT) Peak Gradient (Post-Exercise, Resting, and Valsalva)
Post-Exercise LVOT
-34.654 mmHg
Standard Deviation 43.1174

SECONDARY outcome

Timeframe: Baseline and until treatment end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Efficacy/PD A population included All enrolled A participants who receive at least 1 dose of MYK-224 and have primary or secondary endpoint data, including a baseline value and at least 1 post-baseline value Pre-specified to be analyzed for Part A.

Baseline is defined as the last non-missing value in date/time recorded before the first dose of MYK-224. 90%CIs are calculated based on Normal approximation.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Percentage of Participants With Resting Left Ventricular Outflow Tract (LVOT) Peak Gradient < 30 mmHg and Valsalva LVOT Peak Gradient < 50 mmHg
61.1 percentage of participants
Interval 42.21 to 80.01

SECONDARY outcome

Timeframe: Pre-dose and 1 hour post-dose end date in Part A (Median 17.55 weeks and Maximum 54.9 weeks)

Population: Evaluable PK Analysis Population - Part A included All enrolled A participants who received at least 1 dose of MYK-224 and have at least 1 evaluable PK concentration. Pre-specified to be analyzed for Part A.

Blood samples were collected to assess plasma concentration of MYK-224.

Outcome measures

Outcome measures
Measure
Part A - Dose Treatment - MYK-224
n=18 Participants
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part A: Plasma Concentration of MYK-224
MYK-224 Monotherapy - Pre-Dose
189.113 ng/mL
Geometric Coefficient of Variation 65.6285
Part A: Plasma Concentration of MYK-224
MYK-224 + Beta Blockers - Pre-Dose
136.926 ng/mL
Geometric Coefficient of Variation 111.1556
Part A: Plasma Concentration of MYK-224
MYK-224 + Beta Blockers - 1 hour Post-dose
199.685 ng/mL
Geometric Coefficient of Variation 92.7083
Part A: Plasma Concentration of MYK-224
MYK-224 Monotherapy, 1 hour Post-dose
280.621 ng/mL
Geometric Coefficient of Variation 49.9295

Adverse Events

Part A - Dose Treatment - MYK-224

Serious events: 0 serious events
Other events: 15 other events
Deaths: 0 deaths

Part B - Open Label Extension - MYK-224

Serious events: 3 serious events
Other events: 6 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Part A - Dose Treatment - MYK-224
n=18 participants at risk
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part B - Open Label Extension - MYK-224
n=16 participants at risk
All participants received MYK-224 as a once-daily oral dose. Treatment administration, consisting of either MYK-224 alone or MYK-224 in combination with beta blockers, began on Day 1B. Each participant received the same dose completed in Part A, unless there were changes to background HCM therapy after Part A. The planned study drug exposure was approximately 108 weeks. The actual median duration of exposure in Part B was 51.90 weeks. Minimum exposure was 28.7 weeks and maximum was 64.1 weeks.
Nervous system disorders
Epilepsy
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Nervous system disorders
Presyncope
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Respiratory, thoracic and mediastinal disorders
Dyspnoea
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224

Other adverse events

Other adverse events
Measure
Part A - Dose Treatment - MYK-224
n=18 participants at risk
Participants with symptomatic hypertrophic cardiomyopathy and left ventricular outflow tract obstruction and who took or did not take Beta blockers at or before baseline received MYK-224. Dosing consisted of a once-daily oral dose in the form of tablets. All participants began at an initial dose of 5 mg of MYK-224, followed by up-or down-titration to doses between 2.5mg and 50mg. Dose titration was based on TTE measures taken at 3 weeks (at least 21 days) post-initiation of each new dose. Participants were to repeat this 4-week period as needed to identify their individual target dose. Once the individual dose was identified, participants were to continue dosing until the following 2 criteria were met: 6 weeks (at least 42 days) total dosing at their target dose (including the 4-week titration phase, if applicable) and an overall minimum total treatment period of 12 weeks (at least 84 days) at any dose or combination of doses.
Part B - Open Label Extension - MYK-224
n=16 participants at risk
All participants received MYK-224 as a once-daily oral dose. Treatment administration, consisting of either MYK-224 alone or MYK-224 in combination with beta blockers, began on Day 1B. Each participant received the same dose completed in Part A, unless there were changes to background HCM therapy after Part A. The planned study drug exposure was approximately 108 weeks. The actual median duration of exposure in Part B was 51.90 weeks. Minimum exposure was 28.7 weeks and maximum was 64.1 weeks.
Cardiac disorders
Atrial fibrillation
11.1%
2/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Cardiac disorders
Angina pectoris
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Cardiac disorders
Palpitations
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Cardiac disorders
Sinus bradycardia
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Cardiac disorders
Ventricular tachycardia
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Congenital, familial and genetic disorders
Hypertrophic cardiomyopathy
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Endocrine disorders
Hyperthyroidism
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Eye disorders
Presbyopia
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Gastrointestinal disorders
Abdominal pain upper
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Gastrointestinal disorders
Nausea
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
General disorders
Chest discomfort
11.1%
2/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
General disorders
Fatigue
22.2%
4/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
General disorders
Non-cardiac chest pain
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
General disorders
Oedema peripheral
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
General disorders
Peripheral swelling
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Hepatobiliary disorders
Hypertransaminasaemia
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Infections and infestations
COVID-19
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Infections and infestations
Gastroenteritis viral
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Infections and infestations
Influenza
22.2%
4/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Infections and infestations
Laryngitis
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Infections and infestations
Respiratory tract infection
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Infections and infestations
Viral infection
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Investigations
Transaminases increased
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Metabolism and nutrition disorders
Decreased appetite
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Musculoskeletal and connective tissue disorders
Muscle contracture
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Musculoskeletal and connective tissue disorders
Myalgia
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Nervous system disorders
Cervical radiculopathy
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Nervous system disorders
Dizziness
22.2%
4/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Nervous system disorders
Dizziness postural
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Nervous system disorders
Headache
27.8%
5/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Psychiatric disorders
Libido decreased
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Psychiatric disorders
Loss of libido
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Renal and urinary disorders
Haematuria
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Renal and urinary disorders
Nephrolithiasis
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Reproductive system and breast disorders
Erectile dysfunction
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Respiratory, thoracic and mediastinal disorders
Dyspnoea
38.9%
7/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Respiratory, thoracic and mediastinal disorders
Throat tightness
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Skin and subcutaneous tissue disorders
Dermatitis contact
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Skin and subcutaneous tissue disorders
Erythema
5.6%
1/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
0.00%
0/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Vascular disorders
Hypertension
11.1%
2/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Blood and lymphatic system disorders
Iron deficiency anaemia
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Cardiac disorders
Cardiac failure
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Cardiac disorders
Supraventricular tachycardia
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Eye disorders
Cataract
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Eye disorders
Vitreous detachment
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
General disorders
Pyrexia
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Musculoskeletal and connective tissue disorders
Intervertebral disc protrusion
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Musculoskeletal and connective tissue disorders
Muscular weakness
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Reproductive system and breast disorders
Heavy menstrual bleeding
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Reproductive system and breast disorders
Uterine polyp
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
Skin and subcutaneous tissue disorders
Rosacea
0.00%
0/18 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224
6.2%
1/16 • All cause mortality and adverse events were collected from from first dose (Day 1) until study end date in Part A or B or 30 days after early termination date (Median 69.05 weeks and Maximum 85.0 weeks)
Adverse events were collected for safety population in which participant received at least one dose of MYK-224

Additional Information

Bristol-Myers Squibb Study Director

Bristol-Myers Squibb

Phone: Please email

Results disclosure agreements

  • Principal investigator is a sponsor employee Bristol-Myers Squibb Co. agreements with investigators vary; constant is our right to embargo communications regarding trial results prior to public release for a period ≤60 days from submittal for review. We will not prohibit investigators from publishing, but will prohibit the disclosure of previously undisclosed confidential information other than study results, and request postponement of single-center publications until after disclosure of the clinical trial's primary publication
  • Publication restrictions are in place

Restriction type: OTHER