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    Summary
    EudraCT Number:2018-004019-34
    Sponsor's Protocol Code Number:ABI-H0731-211
    National Competent Authority:UK - MHRA
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2019-06-27
    Trial results
    Index
    A. PROTOCOL INFORMATION
    B. SPONSOR INFORMATION
    C. APPLICANT IDENTIFICATION
    D. IMP IDENTIFICATION
    D.8 INFORMATION ON PLACEBO
    E. GENERAL INFORMATION ON THE TRIAL
    F. POPULATION OF TRIAL SUBJECTS
    G. INVESTIGATOR NETWORKS TO BE INVOLVED IN THE TRIAL
    N. REVIEW BY THE COMPETENT AUTHORITY OR ETHICS COMMITTEE IN THE COUNTRY CONCERNED
    P. END OF TRIAL
    Expand All   Collapse All
    A. Protocol Information
    A.1Member State ConcernedUK - MHRA
    A.2EudraCT number2018-004019-34
    A.3Full title of the trial
    A Multi-center, Open-label, Long-term Extension Study of ABI-H0731 + Nucleos(t)ide as Finite Treatment for Chronic Hepatitis B Patients
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    A long term safety study of ABI-H0731 in Chronic liver disease.
    A.4.1Sponsor's protocol code numberABI-H0731-211
    A.7Trial is part of a Paediatric Investigation Plan No
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorAssembly Biosciences
    B.1.3.4CountryUnited States
    B.3.1 and B.3.2Status of the sponsorCommercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportAssembly Biosciences
    B.4.2CountryUnited States
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationAssembly Biosciences
    B.5.2Functional name of contact pointBarbara Winslow
    B.5.3 Address:
    B.5.3.1Street Address331 Oyster Point Blvd Fourth
    B.5.3.2Town/ citySouth San Francisco CA
    B.5.3.3Post code94080
    B.5.3.4CountryUnited States
    B.5.4Telephone number14153665174
    B.5.5Fax number18662408393
    B.5.6E-mailbwinslow@assemblybio.com
    D. IMP Identification
    D.IMP: 1
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation No
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.1Product nameABI-H0731
    D.3.4Pharmaceutical form Tablet
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNNA
    D.3.9.1CAS number 2090064-66-5
    D.3.9.2Current sponsor codeABI-H0731
    D.3.9.3Other descriptive nameABI-H0731
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number100
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) No
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) No
    D.3.11.3.1Somatic cell therapy medicinal product No
    D.3.11.3.2Gene therapy medical product No
    D.3.11.3.3Tissue Engineered Product No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product No
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.8 Information on Placebo
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Chronic Hepatitis B
    E.1.1.1Medical condition in easily understood language
    A serious liver viral infection.
    E.1.1.2Therapeutic area Diseases [C] - Virus Diseases [C02]
    MedDRA Classification
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    To evaluate the potential for combination therapy with ABI-H0731 + SOC NUC to increase SVR rates in subjects who have CHB. SVR rates will be measured by percentage of subjects with the combination of: HBeAg loss (when applicable), loss or reduction to a stable plateau of HBsAg, and sustained loss of serum viral DNA
    E.2.2Secondary objectives of the trial
    To evaluate the longer-term safety and tolerability of ABI-H0731 added to SOC NUC therapy • To evaluate improvement in transaminases in subjects on treatment and post treatment • For subjects who do not achieve complete response on treatment, to evaluate the durability of changes in viral antigen and viral DNA after discontinuation of combination therapy
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    1. Willing and able to provide informed consent. 2. Previously enrolled on a study of ABI-H0731 and completed the treatment period, with demonstrated compliance in the opinion of the investigator. 3. Female subjects must agree to use an effective birth control method for the duration of the study and follow-up, or be surgically sterile for at least 6 months, or at least 2 years postmenopausal with serum follicle-stimulating hormone (FSH) levels consistent with a postmenopausal status. Effective birth control methods include male or female condom (may not be used together due to increased risk of breakage), vasectomy, intrauterine device (IUD), diaphragm, or cervical cap. Female subjects of childbearing potential must have a negative pregnancy test. 4. All heterosexually active male subjects must agree to use an effective birth control method for the duration of the study and follow-up. Effective birth control methods include male or female condom (may not be used together due to increased risk of breakage), vasectomy, hormone-based contraception (only female partner of a male subject), IUD, diaphragm, or cervical cap. 5. Agreement to adhere to Lifestyle Considerations (including abstaining from alcohol abuse [defined as alcohol consumption exceeding 2 standard drinks per day on average (1 standard drink = 10 grams of alcohol)] and the use of illicit substances, herbal or other substances, or unnecessary over-the-counter medications; see Protocol Section 5.4) throughout study duration. 6. In good general health except for chronic HBV infection.
    Protocol ABI-H0731-211 OLE ABI-H0731 + NUC for CHB Patients Confidential Original Version 1.1, 02 November 2018 Page 9 of 89
    7. Have the ability to take oral medication and be willing to adhere to the ABIH0731-211 regimen in the opinion of the Investigator
    E.4Principal exclusion criteria
    Must not have had evidence of RAVs or lack of compliance on a previous study of ABI-H0731. 2. Must not have had a treatment-emergent adverse event or laboratory abnormalities deemed clinically significant and possibly or probably related to drug while on a previous study of ABI-H0731, that in the opinion of the Investigator or the Sponsor makes the subject unsuitable for this study. 3. Current clinically significant cardiac or pulmonary disease, chronic or recurrent renal or urinary tract disease, liver disease other than HBV, endocrine disorder, autoimmune disorder, diabetes mellitus requiring treatment with insulin or hypoglycemic agents, neuromuscular, musculoskeletal, or mucocutaneous conditions requiring frequent treatment, seizure disorders requiring treatment, or other medical conditions requiring frequent medical management or pharmacologic or surgical treatment that in the opinion of the Investigator or the Sponsor makes the subject unsuitable for the study. 4. Females who are lactating or pregnant or wish to become pregnant within the duration of the ABI-H0731-211 study.
    E.5 End points
    E.5.1Primary end point(s)
    SVR at 24 weeks off treatment defined as: sustained HBeAg loss (in HBeAg positive subjects), sustained viral suppression, and loss or stable reduction of HBsAg to ≤ 100 IU/mL
    E.5.1.1Timepoint(s) of evaluation of this end point
    Endpoints will be will be analyzed descriptively. For continuous variables, such as change from Baseline in mean log10 serum HBeAg or HBsAg values at each timepoint, descriptive statistics will be used and will include the number, mean, standard deviation, median, minimum, and maximum and, where appropriate, a 95% CI.
    E.5.2Secondary end point(s)
    Adverse events, premature discontinuations, abnormal safety laboratory results, electrocardiogram (ECG), or vital signs • Subjects with abnormal ALT at Baseline who have normal ALT at end of treatment (EOT) and end of study (EOS) • Subjects with suppression/loss of viral antigen/DNA on combination treatment whose viral antigens rebound off therapy
    E.5.2.1Timepoint(s) of evaluation of this end point
    Endpoints will be will be analyzed descriptively. For continuous variables, such as change from Baseline in mean log10 serum HBeAg or HBsAg values at each timepoint, descriptive statistics will be used and will include the number, mean, standard deviation, median, minimum, and maximum and, where appropriate, a 95% CI.
    E.6 and E.7 Scope of the trial
    E.6Scope of the trial
    E.6.1Diagnosis No
    E.6.2Prophylaxis No
    E.6.3Therapy Yes
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic No
    E.6.7Pharmacodynamic No
    E.6.8Bioequivalence No
    E.6.9Dose response No
    E.6.10Pharmacogenetic No
    E.6.11Pharmacogenomic No
    E.6.12Pharmacoeconomic No
    E.6.13Others No
    E.7Trial type and phase
    E.7.1Human pharmacology (Phase I) No
    E.7.1.1First administration to humans No
    E.7.1.2Bioequivalence study No
    E.7.1.3Other No
    E.7.1.3.1Other trial type description
    E.7.2Therapeutic exploratory (Phase II) Yes
    E.7.3Therapeutic confirmatory (Phase III) No
    E.7.4Therapeutic use (Phase IV) No
    E.8 Design of the trial
    E.8.1Controlled No
    E.8.1.1Randomised No
    E.8.1.2Open Yes
    E.8.1.3Single blind No
    E.8.1.4Double blind No
    E.8.1.5Parallel group No
    E.8.1.6Cross over No
    E.8.1.7Other No
    E.8.2 Comparator of controlled trial
    E.8.2.1Other medicinal product(s) No
    E.8.2.2Placebo No
    E.8.2.3Other No
    E.8.2.4Number of treatment arms in the trial1
    E.8.3 The trial involves single site in the Member State concerned Yes
    E.8.4 The trial involves multiple sites in the Member State concerned No
    E.8.5The trial involves multiple Member States No
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA Yes
    E.8.6.2Trial being conducted completely outside of the EEA No
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    Canada
    Hong Kong
    New Zealand
    United States
    E.8.7Trial has a data monitoring committee Yes
    E.8.8 Definition of the end of the trial and justification where it is not the last visit of the last subject undergoing the trial
    The study will be completed when the last subject completes the last post-treatment follow-up visit or when the last subject discontinues the study before completing the follow-up visit.
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years
    E.8.9.1In the Member State concerned months
    E.8.9.1In the Member State concerned days
    E.8.9.2In all countries concerned by the trial months24
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 No
    F.1.1.1In Utero No
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) No
    F.1.1.3Newborns (0-27 days) No
    F.1.1.4Infants and toddlers (28 days-23 months) No
    F.1.1.5Children (2-11years) No
    F.1.1.6Adolescents (12-17 years) No
    F.1.2Adults (18-64 years) Yes
    F.1.2.1Number of subjects for this age range: 80
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 20
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male Yes
    F.3 Group of trial subjects
    F.3.1Healthy volunteers No
    F.3.2Patients Yes
    F.3.3Specific vulnerable populations Yes
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception Yes
    F.3.3.3Pregnant women No
    F.3.3.4Nursing women No
    F.3.3.5Emergency situation No
    F.3.3.6Subjects incapable of giving consent personally No
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state5
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 5
    F.4.2.2In the whole clinical trial 95
    F.5 Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)
    None
    G. Investigator Networks to be involved in the Trial
    N. Review by the Competent Authority or Ethics Committee in the country concerned
    N.Competent Authority Decision Authorised
    N.Date of Competent Authority Decision2019-02-15
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2019-02-20
    P. End of Trial
    P.End of Trial StatusOngoing
    As of 1.2.2020, the UK is no longer an EU Member State. However, EU law still applies to the UK during the transition period
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