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Safety, Tolerability, and Pharmacokinetics of Single and Multiple Ascending Oral Doses of XEN901

Phase 1
Completed
Conditions
Healthy Volunteers
Interventions
Drug: Inert Ingredients Oral Product
Registration Number
NCT03467100
Lead Sponsor
Xenon Pharmaceuticals Inc.
Brief Summary

The XEN901 Phase 1 clinical trial is a randomized, double-blind, placebo-controlled study that will evaluate the safety, tolerability and pharmacokinetics (PK) of both single ascending doses (SAD) and multiple ascending doses (MAD) of XEN901 in healthy subjects. It is estimated there will be approximately 64 subjects in the planned SAD and MAD cohorts.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
70
Inclusion Criteria
  • Healthy male or females aged between 18 and 55 years inclusive with a body mass index (BMI) between 18.5 and 32.0 kg/m2
  • Must agree to use effective methods of contraception, if applicable
  • Able to swallow capsules
  • Able to provide written, personally signed and dated Informed Consent Form

Key

Exclusion Criteria
  • Any history of seizures
  • Any current and relevant history of significant disease or disorder which, in the opinion of the investigator, may either put the subject at risk, affect clinical or laboratory results, or the subject's ability to participate in the study
  • Answering "yes" to any of the questions within the Columbia Suicide Severity Rating Scale
  • Mental incapacity or language barriers precluding adequate understanding, cooperation, and compliance with the study
  • No prescription or over-the-counter (OTC) medications (except hormonal contraception), herbal or dietary supplements OTC medications 14 days prior to dosing to study end
  • No smoking 60 days prior to dosing to study end
  • Any clinically significant abnormalities in vital signs, ECG, physical exam, or laboratory evaluations

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
XEN901XEN901Single ascending dose: Single oral dose for each cohort; Multiple ascending dose: 7 days of single oral dose twice daily for each cohort
PlaceboInert Ingredients Oral ProductSingle Ascending Dose: Single oral dose for each cohort; Multiple Ascending Dose: 7 days of single oral dose twice daily for each cohort
Primary Outcome Measures
NameTimeMethod
Number of Participants with Adverse Events (AEs) as assessed by CTCAE v4.03From screening (28 days prior to Day 1) through to 30 days post-final dose

To assess AEs as a criteria of safety and tolerability

Resting 12-lead electrocardiogram (ECG)At screening (28 days prior to Day 1) through to 7 days post-final dose

To assess 12-lead ECG intervals (PR, QRS, QTcF, RR) as a criteria of safety and tolerability

Number of participants with vital sign abnormalitiesAt screening (28 days prior to Day 1) through to 7 days post-final dose

To assess vital signs as a criteria of safety and tolerability

Secondary Outcome Measures
NameTimeMethod
Maximum Observed Plasma Concentration (Cmax)Day 1 predose through to 7 days post-final dose

Cmax is the maximum observed plasma concentration in ng/mL

Time to the Maximum Observed Plasma Concentration (Tmax)Day 1 predose through to 7 days post-final dose

Tmax is the time in hours to reach Cmax following dosing

Terminal elimination half-life (t1/2)Day 1 predose through to 7 days post-final dose

The time in hours required for the plasma level of the study drug to decrease by one-half during the terminal elimination phase

Area Under the Plasma Concentration-Time Curve from Time Zero to the Time of the Last Quantifiable Plasma Concentration (AUC0-last)Day 1 predose through to 7 days post-final dose

The area under the plasma concentration-time curve \[in ng.h/mL\] from time zero to the time corresponding to the last quantifiable plasma concentration

Trial Locations

Locations (1)

Quotient Sciences

🇬🇧

Ruddington, United Kingdom

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