A Study of EDP-514 in Patients With Chronic Hepatitis B Virus Infection Who Are Not Currently on Treatment

January 6, 2022 updated by: Enanta Pharmaceuticals, Inc

A Phase 1b Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Antiviral Activity of EDP 514 in Viremic Chronic Hepatitis B Virus Infected Patients Not Currently on Treatment

This is a randomized, double-blind, placebo-controlled study in viremic chronic hepatitis B subjects, assessing the safety, tolerability, pharmacokinetics and antiviral activity of 28 Days treatment with EDP-514.

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.

Detailed Description

The study assesses multiple ascending doses of EDP-514 compared to placebo for 28 days in viremic chronic CHB-infected subjects not currently on treatment.

Each cohort will enroll a total of 8 subjects who will be randomized to receive EDP-514 or placebo.

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.
25

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

  • Hong Kong
      • Hong Kong, Hong Kong
        • Queen Mary Hospital
  • Taiwan
      • Changhua, Taiwan, 500209
        • Changhua Christian Hospital
      • Chiayi, Taiwan, 600566
        • Chia-Yi Christian Hospital
      • Kaohsiung, Taiwan, 500209
        • Kaohsiung Medical University Chung-Ho Memorial Hospital
      • Kaohsiung, Taiwan, 824410
        • E-Da Hospital/E-DA Cancer Hospital
      • Kaohsiung, Taiwan, 833401
        • Kaohsiung Chang Gung Memorial Hospital
      • Taichung, Taiwan, 404332
        • China Medical University Hospital
      • Tainan, Taiwan, 704302
        • National Cheng Kung University Hospital
      • Taipei, Taiwan, 100229
        • National Taiwan University Hospital
      • Taoyuan, Taiwan, 333423
        • Chang Gung Medical Foundation, Chang Gung Memorial Hospital, Linkou Branch

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 66 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • An informed consent document signed and dated by the subject.
  • Healthy male and female subjects of any ethnic origin between the ages of 18 and 70 years, inclusive

  • HBV DNA levels:

    • For subjects who are HBeAg positive at Screening, a Screening HBV DNA level in serum/plasma that is ≥20,000 IU/ml, or
    • For subjects who are HBeAg negative at Screening, a Screening HBV DNA level in serum/plasma that is ≥2,000 IU/mL, and
    • For all subjects, no HBV DNA serum/plasma test values <1,000 IU/ml over the previous 12 months (using an approved test)
  • CHB subjects must not have been on prescribed anti-HBV treatment for at least 12 months prior to Screening

Exclusion Criteria:

  • A documented prior diagnosis of cirrhosis
  • Pregnant or nursing females
  • Coinfection with human immunodeficiency virus (HIV), HCV, HDV, HAV, or HEV
  • Chronic liver disease of a non-HBV etiology; coexisting liver or biliary diseases

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: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Triple

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: EDP-514 HBV MAD Cohorts
EDP-514 capsule Dose 1, Dose 2 and Dose 3 orally, once daily for 28 days.
Drug: EDP-514
Oral Capsule
Placebo Comparator: EDP-514 HBV MAD Placebo Cohort
Matching placebo, orally, once daily for 28 days.
Drug: Placebo
Placebo to match EDP-514

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
Time Frame
Safety measured by adverse events
Time Frame: Up to 84 Days in HBV MAD Cohorts
Up to 84 Days in HBV MAD Cohorts

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
Time Frame
Cmax of EDP-514
Time Frame: Up to 28 Days in HBV MAD Cohorts
Up to 28 Days in HBV MAD Cohorts
AUC of EDP-514
Time Frame: Up to 28 Days in HBV MAD Cohorts
Up to 28 Days in HBV MAD Cohorts
Change from baseline in HBV DNA Viral Load Assay
Time Frame: through Day 28 in HBV MAD Cohorts
through Day 28 in HBV MAD Cohorts

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.
Enanta Pharmaceuticals, Inc

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Pharmaceutical Research Associates

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.
September 9, 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.
August 30, 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.
August 30, 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).
July 10, 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.
July 10, 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.
July 14, 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.
January 11, 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.
January 6, 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.
January 1, 2022

More Information

Terms related to this study

Keywords

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.
  • EDP 514-002

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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