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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

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03577275
Enrollment
32
Registered
2018-07-05
Start date
2018-06-15
Completion date
2018-09-24
Last updated
2019-11-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dyslipidemias

Brief summary

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.

Interventions

DRUGNST-4016 600mg

Likely maximum therapeutic dose of NST-4016

DRUGPlacebo oral capsule

Placebo for comparison with moxifloxacin and potential NST-4016 effects

Active comparator with known effect on QT interval

DRUGNST-4016 2000mg

Supratherapeutic dose of NST-4016

Sponsors

NorthSea Therapeutics B.V.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

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

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Fridericia's Correction for QT Interval (QTcF)24 hoursElectrocardiogram measurement of the maximum absolute change from baseline in Fridericia's correction for QT interval (QTcF)

Secondary

MeasureTime frameDescription
Change From Baseline in Heart Rate (HR)24 hoursElectrocardiogram measurement of change from baseline in heart rate (HR) maximum values presented
Change From Baseline in Fridericia's Correction for QT Interval (QTcF)24 hoursElectrocardiogram measurement of change from baseline in Fridericia's correction for QT interval (QTcF)
Change From Baseline in PR Interval (PR)24 hoursElectrocardiogram measurement of change from baseline in PR interval (PR)
Change From Baseline in QRS Interval (QRS)2 hoursElectrocardiogram measurement of change from baseline in QRS interval (QRS)

Countries

United Kingdom

Participant flow

Pre-assignment details

This was a cross over study so 32 subjects each completed 4 treatment arms

Participants by arm

ArmCount
All Study Participants
All participants were randomized to receive all 4 interventions
32
Total32

Baseline characteristics

CharacteristicAll Study Participants
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
32 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
4 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
24 Participants
Region of Enrollment
United Kingdom
32 participants
Sex: Female, Male
Female
13 Participants
Sex: Female, Male
Male
19 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 320 / 320 / 320 / 32
other
Total, other adverse events
4 / 326 / 324 / 3215 / 32
serious
Total, serious adverse events
0 / 320 / 320 / 321 / 32

Outcome results

Primary

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)

Time frame: 24 hours

Population: The primary endpoint for this trial was the placebo corrected change from baseline in QTcF. The data presented here are the maximum absolute change from baseline for placebo, moxifloxacin 400mg, NST-4016 600mg and NST-4016 2000mg.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo Oral CapsuleChange From Baseline in Fridericia's Correction for QT Interval (QTcF)-4.6 msecStandard Error 1.52
Moxifloxacin 400mgChange From Baseline in Fridericia's Correction for QT Interval (QTcF)11.5 msecStandard Error 0.88
NST-4016 600mgChange From Baseline in Fridericia's Correction for QT Interval (QTcF)-6.0 msecStandard Error 1.39
NST-4016 2000mgChange From Baseline in Fridericia's Correction for QT Interval (QTcF)-6.1 msecStandard Error 1.42
Comparison: The primary analysis was based on concentration-QTc modeling of the relationship between icosabutate and delta delta QTcF, with the intent to exclude an effect \> 10 msec at clinically relevant icosabutate plasma concentrations.~Assay sensitivity was evaluated by concentration-QTc analysis of the effect on delta delta QTcF of moxifloxacin using a similar model as for the primary analysis.
Secondary

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)

Time frame: 24 hours

Population: The largest change in QTcF for each arm during the study is presented below

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo Oral CapsuleChange From Baseline in Fridericia's Correction for QT Interval (QTcF)-4.6 msecStandard Error 1.52
Moxifloxacin 400mgChange From Baseline in Fridericia's Correction for QT Interval (QTcF)11.5 msecStandard Error 0.88
NST-4016 600mgChange From Baseline in Fridericia's Correction for QT Interval (QTcF)-6.0 msecStandard Error 1.39
NST-4016 2000mgChange From Baseline in Fridericia's Correction for QT Interval (QTcF)-5.7 msecStandard Error 1.39
Secondary

Change From Baseline in Heart Rate (HR)

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

Time frame: 24 hours

Population: maximum values of change in heart rate from baseline over the 24 hours post dose

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo Oral CapsuleChange From Baseline in Heart Rate (HR)9.9 beats per minuteStandard Error 0.86
Moxifloxacin 400mgChange From Baseline in Heart Rate (HR)12.2 beats per minuteStandard Error 0.85
NST-4016 600mgChange From Baseline in Heart Rate (HR)12.6 beats per minuteStandard Error 0.88
NST-4016 2000mgChange From Baseline in Heart Rate (HR)15.6 beats per minuteStandard Error 0.85
Secondary

Change From Baseline in PR Interval (PR)

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

Time frame: 24 hours

Population: maximum change from baseline during the study period is reported

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo Oral CapsuleChange From Baseline in PR Interval (PR)-11.0 msecStandard Error 1.32
Moxifloxacin 400mgChange From Baseline in PR Interval (PR)-11.9 msecStandard Error 1.3
NST-4016 600mgChange From Baseline in PR Interval (PR)-11.4 msecStandard Error 1.36
NST-4016 2000mgChange From Baseline in PR Interval (PR)-12.4 msecStandard Error 1.3
Secondary

Change From Baseline in QRS Interval (QRS)

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

Time frame: 2 hours

Population: The data presented is from the 2 hour time point corresponding to T max

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo Oral CapsuleChange From Baseline in QRS Interval (QRS)-0.2 msecStandard Error 0.17
Moxifloxacin 400mgChange From Baseline in QRS Interval (QRS)-0.1 msecStandard Error 0.16
NST-4016 600mgChange From Baseline in QRS Interval (QRS)-0.2 msecStandard Error 0.17
NST-4016 2000mgChange From Baseline in QRS Interval (QRS)0.2 msecStandard Error 0.16

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026