ClinicalTrials.gg
CompletedNCT03062956Updated Mar 23, 2018

A Single Ascending Dose Study Assessing the Safety, Tolerability, PK and PD of MYK-491

A Phase 1 interventional study of MYK-491 or placebo in Dilated Cardiomyopathy, sponsored by MyoKardia, Inc.. Completed at 1 site in Australia. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-03-23.

Sponsored by MyoKardia, Inc. (part of Bristol-Myers Squibb) · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Nov 2017, 8 years 11 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
64
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

Up to 72 healthy volunteers will be given a single dose of MYK-491 or placebo and be monitored for safety and tolerability over a 7 day period.

Read the detailed description

Up to 72 healthy volunteers will be given a single dose of MYK-491 or placebo and be monitored for safety and tolerability over a 7 day period. After the 28 day screening period, the eligible subject will be admitted to the clinical site and will receive a single dose of study drug or placebo. Subjects will be confined to the clinical site for five days (Day -1 to Day 4) and will return to the clinic on Day 7 for a safety follow-up.

02

Conditions studied

  • Dilated Cardiomyopathy
03

In context

Cardiomyopathy, Dilated

255 studies on the registry are indexed under Cardiomyopathy, Dilated; 66 are open to participants now.

This study's enrollment of 64 is above the median of 43 across 145 interventional studies indexed under Cardiomyopathy, Dilated.

Browse Cardiomyopathy, Dilated studies →

Lead sponsor

MyoKardia, Inc. is the lead sponsor of 7 studies on the registry; none are open to participants now.

First submitted before MyoKardia, Inc. became part of Bristol-Myers Squibb.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Weight between 60 and 90 kg inclusive
  • Resting heart rate of \< 80 beats per minute
  • Documented greater than or equal to 55% during Screening
  • Normal (ECG) at Screening
  • Normal acoustic windows on transthoracic echocardiograms at Screening
  • All safety laboratory parameters within normal limits at Screening
  • History or evidence of another disorder, in the opinion of the investigator.

Exclusion criteria

Exclusion Criteria:

  • Active infection
  • History of coronary artery disease
  • History of with the exception of in situ cervical cancer more than 5 years prior to Screening or surgically-excised non-melanomatous skin cancers more than 2 years prior to Screening
  • Positive serology tests at screening
  • Current use of tobacco or nicotine-containing products exceeding 10 per day.
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
64 participants (actual)

Study arms

  • Experimental
    Single oral dose of MYK-491

    single-dose, oral suspension

    Drug: MYK-491 or placebo

  • Placebo comparator
    Single oral dose of placebo

    single-dose, oral suspension

    Drug: MYK-491 or placebo

Interventions

  • DrugMYK-491 or placebo

    Oral suspension

06

What researchers measure

Primary outcomes

  1. Safety and tolerability assessments will include treatment emergent AEs and SAEs, ECG recordings, vital signs, hs-troponin 1 concentrations, laboratory abnormalities and physical exam abnormalities

    Time frame: 7 days

Secondary outcomes

  1. Maximum observed plasma drug concentration (Cmax)

    Time frame: 7 days

  2. Maximum observed plasma concentration (Tmax)

    Time frame: 7 days

  3. Area under the plasma concentration-time curve (AUC)

    Time frame: 7 days

  4. First-order terminal elimination half-life (t1/2)

    Time frame: 7 days

  5. Mean retention time (MRT)

    Time frame: 7 days

Other outcomes

  1. The change from baseline in LVFS, LVEF, LVSV and SET by TTE

    Time frame: 7 days

  2. SET while using photoplethysmography

    Time frame: 7 days

  3. Relationship between MYK-491 plasma concentrations/PK parameters and PD parameters

    Time frame: 7 days

  4. Plasma concentrations of metabolites of MYK-491 in plasma and urine

    Time frame: 7 days

  5. Relationship between MYK-491 plasma concentration and QTc interval

    Time frame: 7 days

07

Study locations

1 site
  • Nucleus Network
    Melbourne, Victoria 3004, Australia
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2017 to primary completion in Nov 2017, 10 months.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 16, 2017
First posted
Feb 24, 2017
StartActual
Jan 16, 2017
Primary completionActual
Nov 28, 2017
CompletionActual
Nov 28, 2017
Last update
Mar 23, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 23, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03062956
Lead sponsor
MyoKardia, Inc.
Responsible party
Sponsor
First posted
Feb 24, 2017
Start date
Jan 16, 2017
Primary completion
Nov 28, 2017
Completion
Nov 28, 2017
Last update
Mar 23, 2018

Study contacts

Jason Lickliter, MD
principal investigator · Nucleus Network

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2018. You cannot join it, but the record below documents what was studied.

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