E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
chronic hepatitis B virus (HBV) infection |
|
E.1.1.1 | Medical condition in easily understood language |
chronic hepatitis B virus (HBV) infection |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Virus Diseases [C02] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10019182 |
E.1.2 | Term | HBV |
E.1.2 | System Organ Class | 100000004848 |
|
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10019743 |
E.1.2 | Term | Hepatitis B virus (HBV) |
E.1.2 | System Organ Class | 100000004848 |
|
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Primary (Part 1 – SAD)
To evaluate the safety and tolerability of IMC-I109V when administered as a single dose in virally suppressed, HBeAg-negative participants
Primary (Part 2 – MAD)
To evaluate the safety and tolerability of IMC-I109V when administered in a multiple dose schedule up to Week 24 in virally suppressed, HBeAg-negative
participants |
|
E.2.2 | Secondary objectives of the trial |
1) To characterize the PK profile of IMC-I109V in single dose and multiple dose schedules
2) To evaluate incidence of anti-IMC-I109V antibody formations following single and multiple infusions
3) To assess the antiviral effects of IMC-I109V following administration of SAD and MAD schedules using HBV biomarkers |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Aged 18 to 65 years inclusive, at the time of signing the informed consent.
2. HLA-A*02:01 positive (central laboratory testing)
3. Documented evidence of CHB based on one of the following:
a. Positive HBsAg and HBV DNA at least 6 months prior to the screening visit; OR
b. Historical liver biopsy consistent with CHB infection available.
4. If previously HBeAg-positive, participants must be HBeAg-negative at the screening visit and have historical HBeAg-negative status >3 months prior to the screening visit available for review.
5. Have been receiving entecavir and/or tenofovir (including tenofovir alafenamide) for ≥ 12 months prior to screening and are willing to continue.
6. HBV DNA negative (below the LLOQ) at screening
7. Quantitative HBV surface antigen ≤ 3000 IU/mL at the screening visit. Participants with HBsAg levels ≥ 3000 IU/mL and ≤ 5000 IU/mL may be eligible after consultation with, and approval by, the Sponsor’s Medical Monitor.
8. All participants must have no history of liver cirrhosis AND prior assessment of fibrosis demonstrating non-cirrhotic status at screening as defined by one of the following:
a. Liver biopsy demonstrating a Metavir Fibrosis Score of F0-2 (or equivalent); OR
b. Fibroscan® result of < 9 kPa.
NOTE: A confirmatory Fibroscan® is required within 6 months prior to Day 1.
9. Liver imaging confirming absence of clinically significant abnormalities is required within 6 months prior to Day 1.
10. Male and female participants of childbearing potential who are sexually active with a nonsterilized partner must agree to use highly effective methods of birth control from the trial screening date until 3 months after the final dose of the study intervention or longer if required by local regulations; cessation of birth control after this point should be discussed with a responsible physician. *Male participants are not allowed to donate sperm from the time of enrollment until 3 months post-administration of study interventions or longer if required by local regulations.
*Female participants must refrain from egg donation during the course
of the study
11. Capable of giving signed informed consent |
|
E.4 | Principal exclusion criteria |
Medical Conditions
1. Known co-infection with any of the following:
a. HIV
b. Hepatitis C virus OR
c. Hepatitis D virus
2. Changes in HBeAg status within 3 months prior to the screening visit
3. Known HBV genotype A
4. Gilbert's syndrome
5. Any known pre-existing medical or psychiatric condition that could interfere with the participant's ability to provide informed consent or participate in study conduct, or that may confound study findings
6. Significant immunosuppression from, but not limited to immunodeficiency conditions such as common variable hypogammaglobulinemia
7. Evidence of active or suspected malignancy, or a history of malignancy ≤ 3 years prior to the screening visit (except adequately treated carcinoma in situ, basal cell carcinoma of the skin, or stage 0 HCC that has been treated). NOTE: Participants under evaluation for malignancy are not eligible
8. Known or suspected hypersensitivity or previous severe reactions to any of the constituents of IMC-I109V, or the drugs used in the pretreatment
regimen (eg, dexamethasone, ibuprofen and paracetamol)
9. Pregnant or lactating women
Prior/Concomitant Therapy
10. Receiving or planning to receive systemic immunosuppressive medications during the study or ≤ 2 months prior to Day 1, including but not limited to prednisone > 10 mg/day (or equivalent), methotrexate, cyclosporine, or interferon. NOTE: Local steroid therapy are allowed (eg, inhaled, otic, ophthalmic, or intra-articular medications).
Prior/Concurrent Clinical Study Experience
11. Use of any live vaccines against infectious diseases within 4 weeks of the first planned administration of study intervention or use of any non-live vaccines against infectious diseases within 2 weeks of the first planned administration of study intervention.
12. Treatment with any investigational drug or enrollment in any other clinical study ≤ 6 months prior to Day 1, or at any time during participation in the study
Laboratory Exclusion Criteria
13. If any of the laboratory exclusion criteria are met, then the site may have the participant retested. If a single value is within ±10% of the listed laboratory exclusion criterion value upon retest, and the value is considered to be not clinically significant by the physician investigator, the participant may be considered for enrollment:
*ALT > 1.5 x ULN;
*AST > ULN;
*Total bilirubin and direct bilirubin > ULN;
*Albumin < 32 g/L;
*INR > 1.2;
*Hematologic, biochemical, and serologic criteria (transfusions or growth factors may not be used to achieve study entry requirements):
Hemoglobin < 110 g/L for females and < 120 g/L for males, Neutrophils < 1.5 x 109/L (African descent: < 1.2 x 109/L); Platelets < 120 x 109/L
*Poorly controlled diabetes mellitus with whole blood hemoglobin A1c ≥8.5%.
*Estimated glomerular filtration rate < 60 mL/min/1.73 m2
*AFP > 200 ng/mL. NOTE: For participants with alpha-fetoprotein results of 50 to 200 ng/mL, a liver ultrasound, computerized tomography scan, or magnetic resonance imaging scan is required to rule out malignancy. Participants with elevated AFP may be eligible, provided malignancy is ruled out and after consultation with, and approval by, the Sponsor's Medical Monitor.
Other Exclusions
14. Clinical diagnosis of substance abuse with alcohol, narcotics, or cocaine ≤ 12 months prior to the screening visit, except for those participants monitored in an opioid substitution maintenance program
15. Poor venous access that precludes routine peripheral blood sampling or intravenous (IV) infusion required for this study
16. Participants who have a planned need for anesthesia for outpatient surgery or any other reasons during the study
17. Employed as site personnel directly involved with this study |
|
E.5 End points |
E.5.1 | Primary end point(s) |
• Incidence and severity of treatment-emergent adverse events (TEAEs)
• Incidence of dose-limiting toxicities (DLTs)
• Changes in safety laboratory parameters, vital signs, and electrocardiogram (QTcF),
• Incidence of serious adverse events (SAEs)
• Incidence of adverse events (AEs) leading to treatment discontinuation
Through 28 days after the last infusion of study treatment |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
Through 28 days after the last infusion of study treatment |
|
E.5.2 | Secondary end point(s) |
IMC-I109V serum PK parameters (eg, AUC, Cmax, Tmax, t1/2) after single and multiple doses
Incidence of anti-IMC-I109V antibody formation following administration of 1 or more doses of study drug
HBsAg, hepatitis core-related antigen (HBcrAg), HBV RNA, HBsAb changes from baseline through end of trial |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
-IMC-I109V serum PK parameters (eg, AUC, Cmax, Tmax, t1/2) after single and multiple doses
- Incidence of anti-IMC-I109V antibody formation following administration of 1 or more doses of study drug
SAD – W1D1 and W4D1
MAD - pre-dose (dose 1, dose 3, dose 5, dose 16 and EOT (last dose) and Follow-up Week 24 (last FU week)
- HBsAg, hepatitis B core-related antigen (HBcrAg), HBV RNA, HBsAb changes from baseline through end of trial
SAD – W1D1, W1D3, W2D1, W3D1, W4D1, W5D1
MAD - performed weekly Week 1-Week 8, then every 4 weeks during Week 8-Week 24
|
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | Yes |
E.7.1.1 | First administration to humans | Yes |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
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.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Australia |
Hong Kong |
Korea, Republic of |
New Zealand |
Poland |
Romania |
Spain |
Belgium |
Ukraine |
United Kingdom |
|
E.8.7 | Trial has a data monitoring committee | No |
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
|
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 3 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 3 |