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

Phase 1, Double-blind, Placebo-controlled Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Single and Multiple Ascending Oral Doses of XEN901 in Healthy Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03467100
Enrollment
70
Registered
2018-03-15
Start date
2018-02-19
Completion date
2018-12-19
Last updated
2019-07-22

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

Conditions

Healthy Volunteers

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.

Interventions

DRUGXEN901

Capsule filled with XEN901

DRUGInert Ingredients Oral Product

Placebo capsule

Sponsors

Xenon Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

Key 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

Design outcomes

Primary

MeasureTime frameDescription
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 doseTo 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 doseTo 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 doseTo assess vital signs as a criteria of safety and tolerability

Secondary

MeasureTime frameDescription
Maximum Observed Plasma Concentration (Cmax)Day 1 predose through to 7 days post-final doseCmax is the maximum observed plasma concentration in ng/mL
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 doseThe area under the plasma concentration-time curve \[in ng.h/mL\] from time zero to the time corresponding to the last quantifiable plasma concentration
Time to the Maximum Observed Plasma Concentration (Tmax)Day 1 predose through to 7 days post-final doseTmax 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 doseThe time in hours required for the plasma level of the study drug to decrease by one-half during the terminal elimination phase

Countries

United Kingdom

Outcome results

None listed

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