Title

A Study to Evaluate the Effects of NST-4016 on QT/Corrected QT (QTc) Interval
A Randomised, Partially Double Blind, Placebo and Positive Controlled, 4 Way Crossover Study to Evaluate the Effect of Icosabutate (NST 4016) on the QT/QTc Interval in Healthy Subjects
  • Phase

    Phase 1
  • Study Type

    Interventional
  • Study Participants

    32
This is a Phase 1, single centre, randomised, double blind (except for moxifloxacin), placebo and positive controlled, 4 way crossover study assessing the ECG effects of therapeutic and supratherapeutic doses of icosabutate in healthy male and female subjects.
Study Started
Jun 15
2018
Primary Completion
Sep 15
2018
Study Completion
Sep 24
2018
Results Posted
Nov 04
2019
Last Update
Nov 04
2019

Drug NST-4016 600mg

Likely maximum therapeutic dose of NST-4016

  • Other names: Icosabutate

Drug Placebo oral capsule

Placebo for comparison with moxifloxacin and potential NST-4016 effects

Drug Moxifloxacin 400mg

Active comparator with known effect on QT interval

Drug NST-4016 2000mg

Supratherapeutic dose of NST-4016

  • Other names: Icosabutate

Placebo oral capsule Placebo Comparator

Single dose of placebo to match NST-4016

Moxifloxacin 400mg Active Comparator

Single 400mg dose of active comparator moxifloxacin (open label)

NST-4016 600mg Experimental

Likely therapeutic dose of NST-4016

NST-4016 2000mg Experimental

Supratherapeutic dose of NST-4016

Criteria

Inclusion Criteria:

1. Males or females, of any race, between 18 and 55 years of age, inclusive, at Screening.
2. Body mass index (BMI) between 18.0 and 33.0 kg/m2, inclusive, at Screening
3. In good health

Exclusion Criteria:

1. An uninterpretable or abnormal ECG at Screening and/or Check in
2. History of risk factors for Torsades de Pointes
3. sustained supine systolic blood pressure >140 mmHg or <90 mmHg
4. Unstable cardiovascular disease, including recent myocardial infarction or cardiac arrhythmia.
5. Female subjects who are pregnant (or planning to become pregnant within 90 days after the final dose administration) or are currently lactating
6. Subjects who, in the opinion of the Investigator (or designee), should not participate in this study

Summary

Placebo Oral Capsule

Moxifloxacin 400mg

NST-4016 600mg

NST-4016 2000mg

All Events

Event Type Organ System Event Term Placebo Oral Capsule Moxifloxacin 400mg NST-4016 600mg NST-4016 2000mg

Change From Baseline in Fridericia's Correction for QT Interval (QTcF)

Electrocardiogram measurement of the maximum absolute change from baseline in Fridericia's correction for QT interval (QTcF)

Placebo Oral Capsule

-4.6
msec (Least Squares Mean)
Standard Error: 1.52

Moxifloxacin 400mg

11.5
msec (Least Squares Mean)
Standard Error: 0.88

NST-4016 600mg

-6.0
msec (Least Squares Mean)
Standard Error: 1.39

NST-4016 2000mg

-6.1
msec (Least Squares Mean)
Standard Error: 1.42

Change From Baseline in Heart Rate (HR)

Electrocardiogram measurement of change from baseline in heart rate (HR) maximum values presented

Placebo

9.9
beats per minute (Least Squares Mean)
Standard Error: 0.86

Moxifloxacin 400mg

12.2
beats per minute (Least Squares Mean)
Standard Error: 0.85

NST-4016 600mg

12.6
beats per minute (Least Squares Mean)
Standard Error: 0.88

NST-4016 2000mg

15.6
beats per minute (Least Squares Mean)
Standard Error: 0.85

Change From Baseline in Fridericia's Correction for QT Interval (QTcF)

Electrocardiogram measurement of change from baseline in Fridericia's correction for QT interval (QTcF)

Placebo

-4.6
msec (Least Squares Mean)
Standard Error: 1.52

Moxifloxacin 400mg

11.5
msec (Least Squares Mean)
Standard Error: 0.88

NST-4016 600mg

-6.0
msec (Least Squares Mean)
Standard Error: 1.39

NST-4016 2000mg

-5.7
msec (Least Squares Mean)
Standard Error: 1.39

Change From Baseline in PR Interval (PR)

Electrocardiogram measurement of change from baseline in PR interval (PR)

Placebo

-11.0
msec (Least Squares Mean)
Standard Error: 1.32

Moxifloxacin 400mg

-11.9
msec (Least Squares Mean)
Standard Error: 1.30

NST-4016 600mg

-11.4
msec (Least Squares Mean)
Standard Error: 1.36

NST-4016 2000mg

-12.4
msec (Least Squares Mean)
Standard Error: 1.30

Change From Baseline in QRS Interval (QRS)

Electrocardiogram measurement of change from baseline in QRS interval (QRS)

Placebo

-0.2
msec (Least Squares Mean)
Standard Error: 0.17

Moxifloxacin 400mg

-0.1
msec (Least Squares Mean)
Standard Error: 0.16

NST-4016 600mg

-0.2
msec (Least Squares Mean)
Standard Error: 0.17

NST-4016 2000mg

0.2
msec (Least Squares Mean)
Standard Error: 0.16

Age, Categorical

Race (NIH/OMB)

Region of Enrollment

Sex: Female, Male

Overall Study

All Study Participants