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A Study to Assess the Safety and Tolerability of E2511 in Healthy Adult and Elderly Participants

Phase 1
Completed
Conditions
Healthy Volunteers
Interventions
Drug: Placebo
Registration Number
NCT05147337
Lead Sponsor
Eisai Inc.
Brief Summary

The primary objective of this study is to evaluate the safety, tolerability, and plasma pharmacokinetic (PK) of E2511 following multiple oral doses in healthy adult participants.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
47
Inclusion Criteria
  1. Non-smoking, male, or female, non-Japanese participants age >=18 years and <55 years old (Cohorts 1 to 4) or age >=55 years and <=85 years old (Cohort 8); or Japanese participants age >=20 years and <55 years old (Cohorts 5 to 7) at the time of informed consent

  2. Japanese participants must also satisfy the following requirements:

    • Must have been born in Japan of Japanese parents and Japanese grandparents
    • Must have lived no more than 5 years outside of Japan
    • Must not have changed their lifestyle or habits, including diet, while living outside of Japan
  3. Weight of at least 50 kilogram (kg) and body mass index (BMI) >=18 and <30 kilogram per square meter (kg/m^2) (Cohorts 1 to 7) or BMI >=18 and <32 kg/m^2 (Cohort 8) at Screening

Exclusion Criteria
  1. Females who are breastfeeding or pregnant at Screening or Baseline

  2. Females of childbearing potential who:

    • Within 28 days before study entry, did not use a highly effective method of contraception
    • Do not agree to use a highly effective method of contraception throughout the entire study period and for 28 days after study drug discontinuation.
  3. Clinically significant illness that requires medical treatment within 8 weeks or a clinically significant infection that requires medical treatment within 4 weeks of dosing

  4. Evidence of disease that may influence the outcome of the study within 4 weeks before dosing; example, psychiatric disorders and disorders of the gastrointestinal tract, liver, kidney, respiratory system, endocrine system, hematological system, neurological system, or cardiovascular system, or participants who have a congenital abnormality in metabolism

  5. Evidence of disease within 4 weeks before dosing related to chronic headaches, migraines, joint pain, or other disorders or disease resulting in chronic or intermittent pain

  6. Any personal or family history of seizures (including febrile seizures) or diagnosis of epilepsy or episode of unexplained loss of consciousness

  7. Any history of neurological or other medical conditions which in the opinion of the investigator has the potential to reduce seizure threshold

  8. Any history of gastrointestinal surgery that may affect PK profiles of E2511, example, hepatectomy, nephrectomy, digestive organ resection at Screening

  9. Any clinically abnormal symptom or organ impairment found by medical history at Screening, and physical examinations, vital signs, ECG finding, or laboratory test results that require medical treatment at Screening or Baseline

  10. A prolonged QT/QT interval corrected for heart rate (QTc) interval or a prolonged QT/QTc interval (QT interval corrected for heart rate using Fridericia's formula [QTcF] greater than [>] 450 milliseconds [ms]). A history of risk factors for torsade de pointes

  11. HR <50 or more than 100 beats per minute at Screening or Baseline (Cohorts 1 through 7); or HR <55 or more than 100 beats per minute at Screening or Baseline (Cohort 8) NOTE: At Baseline, HR must meet the above criteria on 3 assessments (each separated by 15 minutes) to ensure eligibility

  12. Left bundle branch block

  13. History of myocardial infarction or active ischemic heart disease

  14. History of clinically significant arrhythmia or uncontrolled arrhythmia

  15. Any lifetime history of suicidal ideation or any lifetime history of suicidal behavior as indicated by the C-SSRS

  16. Any lifetime history of psychiatric disease

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Cohort 1: E2511 10 mg or PlaceboE2511Non-Japanese adult (greater than or equal to \[\>=\] 18 years and less than \[\<\] 55 years old) participants will receive 10 milligram (mg) E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 1: E2511 10 mg or PlaceboPlaceboNon-Japanese adult (greater than or equal to \[\>=\] 18 years and less than \[\<\] 55 years old) participants will receive 10 milligram (mg) E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 2: E2511 20 mg or PlaceboE2511Non-Japanese adult participants will receive 20 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 2: E2511 20 mg or PlaceboPlaceboNon-Japanese adult participants will receive 20 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 3: E2511 40 mg or PlaceboE2511Non-Japanese adult participants will receive 40 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 3: E2511 40 mg or PlaceboPlaceboNon-Japanese adult participants will receive 40 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 4: E2511 80 mg or PlaceboE2511Non-Japanese adult participants will receive 80 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 4: E2511 80 mg or PlaceboPlaceboNon-Japanese adult participants will receive 80 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 5: E2511 20 mg or PlaceboE2511Japanese adult (\>=20 years and \<55 years old) participants will receive 20 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 5: E2511 20 mg or PlaceboPlaceboJapanese adult (\>=20 years and \<55 years old) participants will receive 20 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 6: E2511 40 mg or PlaceboE2511Japanese adult participants will receive 40 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 6: E2511 40 mg or PlaceboPlaceboJapanese adult participants will receive 40 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 7: E2511 80 mg or PlaceboPlaceboJapanese adult participants will receive 80 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 8: E2511 40 mg or PlaceboPlaceboNon-Japanese older (\>=55 years and less than or equal to \[\<=\] 85 years old) participants will receive 40 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 8: E2511 40 mg or PlaceboE2511Non-Japanese older (\>=55 years and less than or equal to \[\<=\] 85 years old) participants will receive 40 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Cohort 7: E2511 80 mg or PlaceboE2511Japanese adult participants will receive 80 mg E2511 or E2511 matched placebo, tablets, orally, once daily from Day 1 to Day 14.
Primary Outcome Measures
NameTimeMethod
Number of Participants With Treatment-emergent Adverse Events (TEAEs)From Screening up to 14 days after the last dose of study drug (up to 56 days)
Number of Participants With Serious Adverse Events (SAEs)From Screening up to 14 days after the last dose of study drug (up to 56 days)
Number of Participants With Clinically Significant Abnormal Laboratory ValuesFrom Screening up to 14 days after the last dose of study drug (up to 56 days)
Number of Participants With Clinically Significant Abnormal Vital Signs ValuesFrom Screening up to 14 days after the last dose of study drug (up to 56 days)
Number of Participants With Clinically Significant Abnormal Electrocardiograms (ECGs) FindingsFrom Screening up to 14 days after the last dose of study drug (up to 56 days)
Number of Participants With Clinically Significant Abnormal Ambulatory Blood PressureFrom Screening up to 14 days after the last dose of study drug (up to 56 days)
Number of Participants With Suicidal Ideation or Suicidal Behavior as Measured Using Columbia-suicide Severity Rating Scale (C-SSRS)From Screening up to 14 days after the last dose of study drug (up to 56 days)

The C-SSRS (mapped to Columbia Classification Algorithm of Suicide Assessment \[C-CASA\]) is an interview-based rating scale to systematically assess any suicidality, suicidal behavior, or suicidal ideation. Any suicidality is emergence of any suicidal ideation or suicidal behavior. Any suicidal behavior is indicated when response is "yes" for any these questions- actual attempt to suicide, engaged in non-suicidal self-injurious behavior, interrupted attempt, aborted attempt, preparatory acts. Any suicidal ideation is indicated when response is "yes" for any of these questions- wish to be dead, non-specific active suicidal thoughts, active suicidal ideation with methods without intent to act or some intent to act, without specific plan or with specific plan and intent to suicide.

Number of Participants With Clinically Significant Abnormal Physical Examination FindingsFrom Screening up to 14 days after the last dose of study drug (up to 56 days)
Number of Participants With Clinically Significant Abnormal Neurological Examination FindingsFrom Screening up to 14 days after the last dose of study drug (up to 56 days)
Number of Participants With Clinically Significant Abnormal Electroencephalogram (EEG) FindingsFrom Screening up to 14 days after the last dose of study drug (up to 56 days)
Cmax: Maximum Observed Plasma Concentration for E2511Day 1: pre-dose up to 24 hours post-dose
Css,max: Maximum Observed Plasma Concentration at Steady State for E2511Day 14: pre-dose up to 24 hours post-dose
tmax: Time to Reach Maximum Observed Plasma Concentration (Cmax) for E2511Day 1: pre-dose up to 24 hours post-dose
tss,max: Time to Reach Maximum Observed Plasma Concentration (Cmax) at Steady State for E2511Day 14: pre-dose up to 24 hours post-dose
Css,av: Average Steady State Plasma Concentration for E2511Day 14: pre-dose up to 24 hours post-dose
AUC(0-t): Area Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration for E2511Day 1: pre-dose up to 24 hours post-dose; Day 14: pre-dose up to 24 hours post-dose
AUC(0-inf): Area Under the Plasma Concentration-time Curve From Time Zero to Infinite for E2511Day 1: pre-dose up to 24 hours post-dose
AUC(0-24h): Area Under the Plasma Concentration-time Curve From Time Zero to 24 hours Post-dose for E2511Day 1: pre-dose up to 24 hours post-dose; Day 14: pre-dose up to 24 hours post-dose
t1/2: Terminal Elimination Phase Half-life for E2511Day 1: pre-dose up to 24 hours post-dose; Day 14: pre-dose up to 24 hours post-dose
PTF: Peak-trough Fluctuation for E2511Day 14: pre-dose up to 24 hours post-dose
CL/F: Apparent Total Clearance for E2511Day 1: pre-dose up to 24 hours post-dose
CLss/F: Apparent Total Clearance at Steady State for E2511Day 14: pre-dose up to 24 hours post-dose
Vz/F: Apparent Volume of Distribution at Terminal Phase for E2511Day 1: pre-dose up to 24 hours post-dose; Day 14: pre-dose up to 24 hours post-dose
Rss: Accumulation Ratio for E2511 Based on Time and ConcentrationDay 14: pre-dose up to 24 hours post-dose
Rac: Accumulation Ratio for E2511 Based on Cmax and AUCDay 14: pre-dose up to 24 hours post-dose
Secondary Outcome Measures
NameTimeMethod
Mean Change From Baseline in Day-time, Night-time, and Hourly HRBaseline up to Day 15
Change From Baseline in the Concentration of Acetylcholine (ACh) in Cerebrospinal Fluid (CSF)Baseline, Day 13
Change From Baseline in Heart Rate (HR)Baseline up to Day 15
Change From Baseline in PR Interval of the ECG (PR), QRS Interval of the ECG (QRS), and QT Interval Corrected for Heart Rate (QTc) of the ECGBaseline up to Day 15
Placebo Corrected Change From Baseline in HRBaseline up to Day 15
Placebo Corrected Change From Baseline in PR, QRS, and QTc IntervalBaseline up to Day 15
Number of Participants With Categorical Outliers for HR, PR, QRS and QTc IntervalBaseline up to Day 15
Number of Participants With Treatment-emergent T-wave and U-wave abnormalitiesBaseline up to Day 15
Mean Change From Baseline in 24-hours Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) up to Day 15Up to Day 15

The blood pressure (BP) will be evaluated by Ambulatory Blood Pressure Monitoring (ABPM) for all participants based on the measurement of BP recordings after every 24 hours.

Mean Change From Baseline in Day-time, Night-time, and Hourly SBP and DBPBaseline up to Day 15
Mean Change From Baseline in Day-time, Night-time, and Hourly Mean Arterial Pressure (MAP) and Pulse Pressure (PP)Baseline up to Day 15
Placebo Corrected Mean Change From Baseline in 24-hours SBP and DBP up to Day 15Up to Day 15

The BP will be evaluated by ABPM for all participants based on the measurement of BP recordings after every 24 hours.

Placebo Corrected Mean Change From Baseline in Day-time, Night-time, and Hourly SBP and DBPBaseline up to Day 15
Placebo Corrected Mean Change From Baseline in Day-time, Night-time, and Hourly HRBaseline up to Day 15
Placebo Corrected Mean Change From Baseline in Day-time, Night-time, and Hourly MAP and PPBaseline up to Day 15
Number of Participants With Categorical Outliers for SBP and DBPBaseline up to Day 15
Geometric Mean Ratio of Cmax Between the Healthy Japanese and Non-japanese Participants for E2511Day 1: pre-dose up to 24 hours post-dose; Day 14: pre-dose up to 24 hours post-dose
Geometric Mean Ratio of AUC Between the Healthy Japanese and Non-japanese Participants for E2511Day 1: pre-dose up to 24 hours post-dose; Day 14: pre-dose up to 24 hours post-dose
Geometric Mean Ratio of Cmax Between the Younger Non-japanese (>=18 and <55 years) and older Non-japanese (>=55 to <=85 years) Participants for E2511Day 1: pre-dose up to 24 hours post-dose; Day 14: pre-dose up to 24 hours post-dose
Geometric Mean Ratio of AUC Between the Younger Non-japanese (>=18 and <55 years) and older Non-japanese (>=55 to <=85 years) Participants for E2511Day 1: pre-dose up to 24 hours post-dose; Day 14: pre-dose up to 24 hours post-dose
Geometric Mean Ratio Between the Non-japanese (>=18 and <55 years) and Elderly Non-japanese (>=65 to <=85 years) Participants for E2511Day 1: pre-dose up to 24 hours post-dose; Day 14: pre-dose up to 24 hours post-dose

Trial Locations

Locations (1)

California Clinical Trials Medical Group

🇺🇸

Glendale, California, United States

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