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CompletedNCT02112799Updated Oct 18, 2017

Safety and Efficacy Study of NVR 3-778 in Healthy Volunteers and Hepatitis B Patients

A Phase 1 interventional study of NVR 3-778 and Placebo for NVR 3-778 in Chronic Hepatitis B, sponsored by Novira Therapeutics, Inc.. Completed at 2 sites in New Zealand. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-10-18.

Sponsored by Novira Therapeutics, Inc. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was May 2016, 10 years 4 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
55
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This Phase 1 trial will assess the dose-related safety and PK profile of different doses of NVR 3-778, first in healthy volunteer subjects (part I) and subsequently in patients with chronic hepatitis B (part II). Additionally, in Part II, changes in patients' serum HBV DNA levels and other virologic efficacy parameters will be assessed.

Read the detailed description

The Part I (Phase 1a) assessments of the dose-related safety and PK of NVR 3-778 in volunteers will be conducted an established Phase 1 unit, which will facilitate the overnight confinements and frequent safety assessments and blood sampling required for the Part I evaluations. The Part II (Phase 1b) assessments of the dose-related safety, PK, and initial antiviral efficacy of NVR 3-778 in hepatitis B patients will also be conducted at approximately 14 different sites to meet enrollment goals of 54-84 chronic hepatitis B patients.

To promote objective safety and tolerance assessments during this trial, study subjects, and site personnel administering the study drug and performing the clinical assessments on the subjects, will be blinded to individual subjects' treatments assignments (active NVR 3-778 or placebo doses), for all treatment cohorts in the study. Study advancement to subsequent volunteer cohorts in Part I and subsequent patient cohorts in Part II will require satisfactory interim reviews of available cumulative safety data by the Part I and Part II Safety Review Committees (SRCs), using the safety criteria and review procedures described in the protocol. Also, there will be two interim reviews of safety data by an independent Safety Monitoring Board (SMB), as described in the protocol.

02

Conditions studied

03

In context

Hepatitis A

2,709 studies on the registry are indexed under Hepatitis A; 142 are open to participants now.

This study's enrollment of 55 is below the median of 100 across 1,886 interventional studies indexed under Hepatitis A.

Browse Hepatitis A studies →

Lead sponsor

Novira Therapeutics, Inc. is the lead sponsor of 2 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Healthy volunteers may be male or female between 18 and 65 years old with a BMI of 18-32kg/m2. They must be in good health not have any health condition which could interfere with the absorption, distribution or elimination of study drug, or with the clinical and laboratory assessments in this study.

Patients enrolling in Part II of the study, may be male or female between 18 and 65 years of age, with a BMI of 18-35kg/m2. Patients must have HBeAg positive, chronic hepatitis B with no history of clinical decompensation, and must not have been treated for hepatitis B before.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
55 participants (actual)

Study arms

  • Experimental
    NVR 3-778

    NVR 3-778 in varying doses of capsules by mouth for 1 day, 14 days, or 28 days

    Drug: NVR 3-778

  • Placebo comparator
    Placebo for NVR 3-778

    Placebo for NVR 3-778 in varying doses of capsules by mouth for 1 day, 14 days, or 28 days

    Drug: Placebo for NVR 3-778

  • Experimental
    NVR 3-778 and Pegasys

    NVR 3-778 and Pegasys in combination in a yet to be determined dose by mouth and subcutaneous injection for 28 days

    Drug: NVR 3-778 · Drug: Pegasys

  • Active comparator
    Pegasys

    Pegasys alone in a yet to be determined dose by subcutaneous injection for 28 days

    Drug: Pegasys

Interventions

  • DrugNVR 3-778
  • DrugPlacebo for NVR 3-778

    Sugar pill manufactured to mimic the NVR 3-778 capsule

  • DrugPegasys

    Also known as: peginterferon alfa-2a

06

What researchers measure

Primary outcomes

  1. To assess the dose-related safety and tolerability of NVR 3-778 in healthy volunteers and hepatitis B patients

    Time frame: Up to 28 days

07

Study locations

2 sites
  • Hamilton, Waikato, New Zealand
  • Auckland, New Zealand
08

References and documents

Publications

  • Yuen MF, Gane EJ, Kim DJ, Weilert F, Yuen Chan HL, Lalezari J, Hwang SG, Nguyen T, Flores O, Hartman G, Liaw S, Lenz O, Kakuda TN, Talloen W, Schwabe C, Klumpp K, Brown N. Antiviral Activity, Safety, and Pharmacokinetics of Capsid Assembly Modulator NVR 3-778 in Patients with Chronic HBV Infection. Gastroenterology. 2019 Apr;156(5):1392-1403.e7. doi: 10.1053/j.gastro.2018.12.023. Epub 2019 Jan 6. PubMed 30625297 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 18, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02112799
Lead sponsor
Novira Therapeutics, Inc.
Responsible party
Sponsor
First posted
Apr 14, 2014
Start date
Apr 30, 2014
Primary completion
May 18, 2016
Completion
May 18, 2016
Last update
Oct 18, 2017

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2017. You cannot join it, but the record below documents what was studied.

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