A Single-blind, Placebo-controlled, Outpatient Trial to Assess the Effects of Single Oral Tablet Dose of OPC-214870

August 19, 2022 updated by: Otsuka Pharmaceutical Development & Commercialization, Inc.

A Phase 1b, Single-blind, Placebo-controlled, Adaptive Design, Outpatient Trial to Assess the Effects of Single Oral Tablet Doses of OPC-214870 on Photic-induced Paroxysmal Electroencephalogram Responses in Subjects Who Have Demonstrated Photoepileptiform Discharges on Electroencephalogram With or Without Seizures

Despite availability of several antiepileptic drugs (AEDs), in one-third of patients, epilepsy remains uncontrolled with AEDs. There is a need to develop new approaches to improve the existing medications to relieve patients' epilepsy, and OPC-214870 is being studied for this purpose.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
16

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Florida
      • Ormond Beach, Florida, United States, 34174
        • For additional information regarding sites, contact 844-687-8522

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male and female subjects between 18 and 64 years of age, inclusive.
  • Body mass index (BMI) between 18 and 40 kg/m^2, inclusive.
  • Subjects with a diagnosis and history of photoparoxysmal response on EEG.
  • Subjects must be stable for 1 month prior to screening. Stable is defined as having no change in concomitant therapy and no worsening in the opinion of the investigator.
  • Subjects may be treatment-naïve to AEDs or currently treated with up to 3 AEDs.
  • Subjects must have a reproducible standardized photosensitivity range on EEG of at least 3 points in at least 1 eye condition.
  • Subjects who agree to remain abstinent, or practice double-barrier forms of birth control, from trial to screening through 90 days after the last dose of IMP, OR males and females of non-childbearing potential who are documented as sterile (i.e. male subjects who have undergone bilateral orchidectomy and female subjects who have undergone bilateral oophorectomy, bilateral salpingectomy, or hysterectomy, or who have been postmenopausal for at least 12 months.

Exclusion Criteria:

  • History of non-epileptic seizures
  • History of status epilepticus in the past 5 years
  • An active central nervous system (CNS) infection, demyelinating disease, degenerative neurological disease, or any CNS disease deemed to be progressive during the course of the trial that may confound the interpretation of the trial results.
  • Positive urine drug screen for substance of abuse or upon check in to the trial site. Benzodiazepines are excluded as a drug of abuse, but are allowed as rescue medication or when part of subject's stable concomitant medication at enrollment.
  • History of drug and/or alcohol abuse within 24 months prior to screening.
  • Consumption of grapefruit, grapefruit juice, Seville oranges, or Seville orange juice within 7 days prior to dosing.
  • Consumption of more than 1 alcoholic drink within 24 hours prior to dosing. Food and beverages containing methylxanthines (caffeinated coffee, caffeinated tea, caffeinated soda, and chocolate) must remain stable throughout the trial.
  • Extreme physical activity within 24 hours before screening and visit
  • Females who are breast-feeding and/or who have a positive pregnancy test result prior to receiving IMP
  • Subject having taken an investigational drug within 30 days preceding screening.
  • Use of over-the-counter drugs, herbal medicines, or vitamin supplements within 14 days or 5 half-lives, whichever is longer, prior to dosing and antibiotics within 30 days prior to dosing.
  • Subjects who had neurosurgery in last 6 months.
  • Subjects on a ketogenic diet.
  • History of significant sleep disorders, or any disorder or activity that causes sleep deprivation.
  • Subjects who work "night shifts"
  • Subjects with uncontrolled sleep disorders; subjects should be on a stable dose of sleep medications.
  • History of, or current hepatitis or acquired immunodeficiency syndrome or carriers of hepatitis B surface antigen (HBsAg), hepatitis C antibodies (anti-HCV), and/or HIV antibodies.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Intervention 1
Single dose; up to 400 mg capsule; adaptive dosage determined by initial dosing from cohort 1.Potential for a matching placebo dose to be administered.
Drug: OPC-214870
Tablet(s)
Other: Placebo
Tablet(s)
Placebo Comparator: Placebo
Single dose; potential for a matching OPC-214870 dose to be administered.
Drug: OPC-214870
Tablet(s)
Other: Placebo
Tablet(s)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in Standardized Photosensitivity Range (SPR)
Time Frame: Up to 3 days
OPC-214870 in comparison to placebo
Up to 3 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Onset and duration of SPR
Time Frame: Up to 3 days
OPC-214870 in comparison to placebo
Up to 3 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Otsuka Pharmaceutical Development & Commercialization, Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 18, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 11, 2021

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 28, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 23, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 23, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 27, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 24, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 19, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 325-201-00003

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

Anonymized Individual participant data (IPD) that underlie the results of this study will be shared with researchers to achieve aims pre-specified in a methodologically sound research proposal. Small studies with less than 25 participants are excluded from data sharing.

IPD Sharing Time Frame

Data will be available after marketing approval in global markets, or beginning 1-3 years following article publication. There is no end date to the availability of the data.

IPD Sharing Access Criteria

Otsuka will share data on the Vivli data sharing platform which can be found here: https://vivli.org/ourmember/Otsuka/

IPD Sharing Supporting Information Type

  • Study Protocol
  • Statistical Analysis Plan (SAP)
  • Clinical Study Report (CSR)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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