Skip to main content
OpenTrials
Completed

NCT Number: NCT03494907

A Study to Evaluate the Effects of Single-dose Seltorexant on Electrocardiogram Intervals in Healthy Adult Participants

The purpose of this study is to assess the effects of single dose seltorexant on QT/QTc intervals and electrocardiogram (ECG) morphology at therapeutic and supratherapeutic exposures in healthy adult participants.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Healthy

Age range

18 year–55 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Clinical Pharmacology Unit

Merksem, 2170, Belgium

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Have signed informed consent form (ICF) indicating they understand the purpose of and procedures required for the study, including the required pharmacogenomic component (which specifies testing of genes predisposing to long or short QT and related cardiac syndromes), and are willing to participate in the study. Consent for sample storage will be obtained in the ICF
  • Be Willing to adhere to the prohibitions and restrictions specified in the protocol
  • A female participant must be either not of childbearing potential (ie, postmenopausal, permanently sterile) or of childbearing potential and practicing a highly effective method of contraception (failure rate of less than [<]1 percent [%] per year when used consistently and correctly)
  • A female participant must agree not to donate eggs (ova, oocytes) for the purposes of assisted reproduction during the study and for at least 1 month after the last study drug administration
  • A male participant, who is sexually active with a woman of childbearing potential and has not had a vasectomy, must agree to use an adequate contraception method as deemed appropriate by the investigator (eg, vasectomy, double-barrier, partner using effective contraception) and to not donate sperm during the study and for 3 months after receiving the last dose of study drug
  • Must have a blood pressure (after the participant is supine for 5 minutes) between 90 and 140 millimeter of mercury (mmHg) systolic, inclusive, and no higher than 90 mmHg diastolic. Heart rate between 45 and 100 beats per minute (bpm), inclusive

Exclusion criteria

  • Clinically significant abnormal values for hematology, serum chemistry (including thyroid stimulating hormone [TSH] at screening only) or urinalysis at screening or at admission to the study site
  • Clinically significant abnormal physical examination, vital signs, or 12-lead electrocardiogram (ECG) at screening or at admission to the study site as deemed appropriate by the investigator
  • Received a known inhibitor of CYP3A4 or CYP2C9 activity within 14 days or a period less than 5 times the drugs' half-life; whichever is longer, before the first dose of the study drug is scheduled
  • Known allergy to the study drug or any of the excipients of the formulation
  • Received an experimental drug or used an experimental medical device within 1 month or within a period less than 10 times the drug's half-life, whichever is longer, before the first dose of the study drug is scheduled
  • A woman who is pregnant, breast-feeding, or planning to become pregnant during the study

Treatment and study plan

Seltorexant

Drug

Participants will be administered oral dose of seltorexant over-encapsulated tablets on Day 1.

Other names: JNJ-42847922

Placebo Matched to Seltorexant

Other

Participants will be administered matching placebo to seltorexant tablets on Day 1.

Placebo Matched to Moxifloxacin

Other

Participants will be administered oral dose of moxifloxacin placebo tablet on Day 1.

Moxifloxacin Dose 1

Drug

Participants will be administered oral dose 1 of moxifloxacin on Day 1.

Primary outcomes

  1. Change From Baseline in QT/QTc Intervals

    Time frame: Baseline up to Day 3

    Change from baseline in QT and QTc interval will be assessed. QT interval will be measured in triplicates from 12 lead Holter extracted triplicate ECG recordings and corrected QT (QTc) interval will be calculated based on Fridericia (QTcF), Bazett (QTcB), and/or study specific power (QTcP) equations.

  2. Percentage of Participants with Change from Baseline in T-wave Morphology

    Time frame: Baseline up to Day 3

    The percentage of participants in each treatment having T-wave morphology changes from baseline that represent the appearance or worsening of the morphological abnormality will be reported.

  3. Percentage of Participants with Change from Baseline in U-wave Morphology

    Time frame: Baseline up to Day 3

    The percentage of participants with change from baseline with abnormal U-waves morphology that represent the appearance or worsening of the morphological abnormality will be reported.

Secondary outcomes

  1. Maximum Observed Plasma Concentration (Cmax)

    Time frame: Pre-dose; 0.33, 0.5, 0.67, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, and 48 hours Post-dose

    Cmax is the maximum observed plasma concentration of seltorexant and its circulating metabolites.

  2. Time to Reach Maximum Observed Plasma Concentration (Tmax)

    Time frame: Pre-dose; 0.33, 0.5, 0.67, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, and 48 hours Post-dose

    Tmax is the time to reach the maximum observed plasma concentration of seltorexant and its circulating metabolites.

  3. Area Under the Plasma Concentration-Time Curve From Time Zero to Last Quantifiable Time (AUC [0-last])

    Time frame: Pre-dose; 0.33, 0.5, 0.67, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, and 48 hours Post-dose

    AUC(0-last) is the area under the plasma concentration-time curve from 0 to time of the last quantifiable concentration of seltorexant and its circulating metabolites.

  4. Area Under the Plasma Concentration-Time Curve From Time Zero to Infinite Time (AUC [0-infinity])

    Time frame: Pre-dose; 0.33, 0.5, 0.67, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, and 48 hours Post-dose

    The AUC (0-infinity) is the area under the plasma concentration-time curve from time 0 to infinite time, calculated as the sum of AUC (0-last) and C(last)/lambda(z), in which AUC(0-last) is area under the plasma concentration-time curve from time zero to time of the last quantifiable concentration, C(last) is the last observed quantifiable concentration and lambda(z) is elimination rate constant. AUC (0-infinity) will be assessed for seltorexant and its circulating metabolites.

  5. Elimination Half-Life (t1/2)

    Time frame: Pre-dose; 0.33, 0.5, 0.67, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, and 48 hours Post-dose

    Elimination half-life associated with the terminal slope Lambda (z) of the semi logarithmic drug concentration-time curve, calculated as 0.693/Lambda (z).

  6. Total Apparent Clearance (CL/F)

    Time frame: Pre-dose; 0.33, 0.5, 0.67, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, and 48 hours Post-dose

    CL/F for extravascular administration divided by the fraction of dose absorbed, calculated using the observed value of the last non-zero plasma concentration.

  7. Apparent Volume of Distribution (Vd/F)

    Time frame: Pre-dose; 0.33, 0.5, 0.67, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, and 48 hours Post-dose

    Vd/F is defined as Dose/[Lambda (z)*AUC (0-infinity)].

  8. Metabolite to Parent (M/P) Ratio for AUC[last]

    Time frame: Pre-dose; 0.33, 0.5, 0.67, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, and 48 hours Post-dose

    M/P Ratio AUC[last] is the ratio of AUC[last] of seltorexant to AUC[last] of seltorexant's metabolites.

  9. Metabolite to Parent (M/P) Ratio for AUC[infinity]

    Time frame: Pre-dose; 0.33, 0.5, 0.67, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, and 48 hours Post-dose

    M/P Ratio AUC[infinity] is the ratio of AUC[infinity] of seltorexant to AUC[infinity] of seltorexant's metabolites.

  10. Relationship Between the Plasma Concentrations of Seltorexant and Changes in the QT/QTc Interval

    Time frame: Up to Day 3

    The relationship between change in QT/QTc interval and plasma concentrations from both doses of seltorexant at matching time points will be assessed.

  11. Number of Participants with Adverse Events and Serious Edverse Events as a Measure of Safety and Tolerability

    Time frame: Approximately 11 weeks

    An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Sponsors and collaborators

Lead sponsor

Janssen Research & Development, LLC

Industry

Registry information

Official study title

A Randomized, Double-blind, Placebo- and Positive-controlled, Single-dose, 4-way Crossover Study to Evaluate the Effects of Seltorexant (JNJ-42847922) on Electrocardiogram Intervals in Healthy Adult Subjects

Important dates

Study start
2018
Primary completion
2018
Study completion
2018
First posted
Apr 11, 2018
Registry last updated
Apr 27, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.