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Chronic Hepatitis BPhase 1NCT05017116

A Single and Repeated Dose Escalation of RBD1016 in Subjects with Chronic Hepatitis B Virus (HBV) Infection

A Phase 1 study testing RBD1016 and Entecavir in people with Chronic Hepatitis B, run by Suzhou Ribo Life Science Co. Ltd. at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a randomized, double-blind, placebo-controlled, single (Part A) and repeated dose (Part B) escalation, phase I clinical study to evaluate the safety, pharmacokinetics (PK) and preliminary pharmacodynamics (PD) of RBD1016 in subjects with chronic HBV infection. Read more about this study

Who is it for?
Ages 18 to 55 years
Conditions the study is for
Chronic Hepatitis B
What is being tested?
RBD1016 and Entecavir
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
40 participants
Where
1 siteChina
Study dates
9 Aug 2021to 25 Oct 2023
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Subjects who voluntarily participate in this clinical trial, are able to correctly understand and have signed the informed consent in writing;
  • Male or female volunteer aged 18-55 years (inclusive);
  • Body Mass Index (BMI) of 18-30 kg/m2 (inclusive);
  • Subjects with chronic HBV infection, including immunotolerant subjects, treatment naïve subjects and treated subjects.
  • Ability to cooperate with study staff and comply with the study requirements and follow the protocol-specified procedures.

Who cannot join

  • Subjects with liver diseases other than hepatitis B, including hepatitis C, hemochromatosis, primary sclerosing cholangitis; alcoholic, drug-related or autoimmune liver diseases; primary liver cancer and indeterminate nodules on liver imaging test;
  • A history or manifestations of liver decompensation (e.g. Child-Pugh Class B or C, or ascites, gastrointestinal bleeding, hepatic encephalopathy or spontaneous bacterial peritonitis, etc.);
  • Transient elastography at screening revealing FibroScan value ≥ 9 kPa or liver biopsy evidencing hepatic fibrosis within 24 months;
  • The following laboratory findings: total serum bilirubin> 2×ULN; serum alpha-fetoprotein>50μg/L; serum albumin <3.5g/dL; international normalized ratio (INR)> 1.25; serum creatinine > 1.5×ULN; any laboratory outliers of clinical significance that in the investigator's opinion may interfere with the interpretation of efficacy or safety data;
  • 12-lead ECG abnormalities with clinical significance;
  • Pregnant or lactating women or women of child-bearing potential who are unwilling to take effective contraception throughout the course of the study (refer to Appendix 3 for details);
  • Other factors that in the investigator's opinion would make it inappropriate for the subject to participate in the study.

Trial locations and contacts

1 site in 1 country.

China1 site
  • The University of Hong Kong

    Hong Kong

Other trials in China

About this study

Official title: A Single and Repeated Dose Escalation, Phase I Clinical Study to Evaluate the Safety, Pharmacokinetics and Preliminary Pharmacodynamics of RBD1016 in Subjects with Chronic Hepatitis B Virus (HBV) Infection

This is a randomized, double-blind, placebo-controlled, single (Part A) and repeated dose (Part B) escalation, phase I clinical study to evaluate the safety, pharmacokinetics (PK) and preliminary pharmacodynamics (PD) of RBD1016 in subjects with chronic HBV infection.

Read the detailed description

The study consists of two parts. Part A is the single dose escalation study where subjects with chronic HBV infection will be assigned to receive single dose of RBD1016 or placebo . Part B is the multiple dose escalation study where subjects with chronic HBV infection will be assigned to receive two doses of RBD1016 or placebo.

Being tested
RBD1016, Placebo, Entecavir
Keywords
CHB, chronic hepatitis B infection
Medical subject headings
Hepatitis B, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • RBD1016Drug

    Also called RBD1016 injection

    subcutaneous injection

  • PlaceboDrug

    subcutaneous injection

  • EntecavirDrug

    Take orally.

Study groups in NCT05017116
Study groupRoleWhat they receive
Part A,single dose groupExperimentalSubjects will receive single dose RBD1016/placebo on D1 combined with antiviral drugs during the study period.
Receives: Drug: RBD1016; Drug: Placebo; Drug: Entecavir
Part B, multiple dose groupExperimentalSubjects will receive two doses of RBD1016/placebo on D1 and D29 combined with antiviral drugs during the study period.
Receives: Drug: RBD1016; Drug: Placebo; Drug: Entecavir

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Adverse events (AEs) and serious adverse events (SAEs) within 28 days after treatment (Part A)

    All reported AE terms will be coded using Medical Dictionary for Drug Regulatory Affairs (MedDRA).AEs and SAEs occurred throughout the course of the study will be evaluated and graded based on NCI-CTCAE V5.0.

    Measured: up to 28 days

  2. Adverse events (AEs) and serious adverse events (SAEs) within 28 days after the last treatment(Part B)

    All reported AE terms will be coded using Medical Dictionary for Drug Regulatory Affairs (MedDRA).AEs and SAEs occurred throughout the course of the study will be evaluated and graded based on NCI-CTCAE V5.0.

    Measured: up to 28 days

Secondary outcomes (34)
  1. To draw the figure of HBsAg dynamic changes from baseline to Week 24 (Part A).

    Electro chmiluminescence method will be used to detect hepatitis B surface antigen (HBsAg).

    Measured: up to 24 weeks

  2. To draw the figure of HBsAb dynamic changes from baseline to Week 24 (Part A).

    Electro chmiluminescence method will be used to detect hepatitis B surface antibody (HBsAb).

    Measured: up to 24 weeks

  3. To draw the figure of HBeAg dynamic changes from baseline to Week 24 (Part A).

    Electro chmiluminescence method will be used to detect hepatitis B e antigen (HBeAg).

    Measured: up to 24 weeks

  4. To draw the figure of HBeAb dynamic changes from baseline to Week 24 (Part A).

    Electro chmiluminescence method will be used to detect hepatitis B e antibody (HBeAb).

    Measured: up to 24 weeks

  5. To draw the figure of HBcAb dynamic changes from baseline to Week 24 (Part A).

    Electro chmiluminescence method will be used to detect hepatitis B core antibody (HBcAb).

    Measured: up to 24 weeks

  6. To draw the figure of HBcrAg dynamic changes from baseline to Week 24 (Part A).

    Electro chmiluminescence method will be used to detect hepatitis B core-related antigen (HBcrAg).

    Measured: up to 24 weeks

  7. To draw the figure of HBV DNA dynamic changes from baseline to Week 24 (Part A).

    PCR will be used to detect HBV DNA.

    Measured: up to 24 weeks

  8. To draw the figure of HBV RNA dynamic changes from baseline to Week 24 (Part A).

    PCR will be used to detect HBV RNA.

    Measured: up to 24 weeks

  9. To draw the figure of peripheral blood T lymphocyte subsets dynamic changes from baseline to Week 24 (Part A).

    Flow Cytometry will be used to detect peripheral blood T lymphocyte subsets.

    Measured: up to 24 weeks

  10. To draw the figure of B cell dynamic changes from baseline to Week 24 (Part A).

    Flow Cytometry will be used to detect B cell count.

    Measured: up to 24 weeks

  11. To characterize the pharmacokinetic parameter Cmax (Part A).

    PCR will be ued to detect Maximum concentration (Cmax) and PhoenixWinNonlin software (V8.0 or higher) will be used to calculate the PK parameters.

    Measured: up to 85 days

  12. To characterize the pharmacokinetic parameter Tmax (Part A).

    Time to maximum concentration (Tmax) will be calculated by PhoenixWinNonlin software (V8.0 or higher) will be used to calculate the PK parameter.

    Measured: up to 85 days

  13. To characterize the pharmacokinetic parameter AUC0-t (Part A).

    Area under the concentration-time curve from 0 to the collection time t (AUC0-t) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 85 days

  14. To characterize the pharmacokinetic parameter AUC0-inf (Part A).

    Area under the concentration-time curve from 0 to infinity (AUC0-inf) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 85 days

  15. To characterize the pharmacokinetic parameter t1/2 (Part A).

    Half-Life (t1/2) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 85 days

  16. To characterize the pharmacokinetic parameter Vd (Part A).

    Apparent volume of distribution (Vd) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 85 days

  17. To characterize the pharmacokinetic parameter CL/F (Part A)

    Clearance (CL/F) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 85 days

  18. To draw the figure of HBsAg dynamic changes from baseline to Week 24 (Part B).

    Electro chmiluminescence method will be used to detect hepatitis B surface antigen (HBsAg).

    Measured: up to 24 weeks

  19. To draw the figure of HBsAb dynamic changes from baseline to Week 24 (Part B).

    Electro chmiluminescence method will be used to detect hepatitis B surface antibody (HBsAb).

    Measured: up to 24 weeks

  20. To draw the figure of HBeAg dynamic changes from baseline to Week 24 (Part B).

    Electro chmiluminescence method will be used to detect hepatitis B e antigen (HBeAg).

    Measured: up to 24 weeks

  21. To draw the figure of HBeAb dynamic changes from baseline to Week 24 (Part B).

    Electro chmiluminescence method will be used to detect hepatitis B e antibody (HBeAb).

    Measured: up to 24 weeks

  22. To draw the figure of HBcAb dynamic changes from baseline to Week 24 (Part B).

    Electro chmiluminescence method will be used to detect hepatitis B core antibody (HBcAb).

    Measured: up to 24 weeks

  23. To draw the figure of HBcrAg dynamic changes from baseline to Week 24 (Part B).

    Electro chmiluminescence method will be used to detect hepatitis B core-related antigen (HBcrAg).

    Measured: up to 24 weeks

  24. To draw the figure of HBV DNA dynamic changes from baseline to Week 24 (Part B).

    PCR will be used to detect HBV DNA.

    Measured: up to 24 weeks

  25. To draw the figure of HBV RNA dynamic changes from baseline to Week 24 (Part B).

    PCR will be used to detect HBV RNA.

    Measured: up to 24 weeks

  26. To draw the figure of peripheral blood T lymphocyte subsets dynamic changes from baseline to Week 24 (Part B).

    Flow Cytometry will be used to detect peripheral blood T lymphocyte subsets.

    Measured: up to 24 weeks

  27. To draw the figure of B cell dynamic changes from baseline to Week 24 (Part B).

    Flow Cytometry will be used to detect B cell count.

    Measured: up to 24 weeks

  28. To characterize the pharmacokinetic parameter Cmax (Part B).

    PCR will be ued to detect Maximum concentration (Cmax) and PhoenixWinNonlin software (V8.0 or higher) will be used to calculate the PK parameters.

    Measured: up to 113 days

  29. To characterize the pharmacokinetic parameter Tmax (Part B).

    Time to maximum concentration (Tmax) will be calculated by PhoenixWinNonlin software (V8.0 or higher) will be used to calculate the PK parameter.

    Measured: up to 113 days

  30. To characterize the pharmacokinetic parameter AUC0-t (Part B).

    Area under the concentration-time curve from 0 to the collection time t (AUC0-t) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 113 days

  31. To characterize the pharmacokinetic parameter AUC0-inf (Part B).

    Area under the concentration-time curve from 0 to infinity (AUC0-inf) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 113 days

  32. To characterize the pharmacokinetic parameter t1/2 (Part B).

    Half-Life (t1/2) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 113 days

  33. To characterize the pharmacokinetic parameter Vd (Part B).

    Apparent volume of distribution (Vd) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 113 days

  34. To characterize the pharmacokinetic parameter CL/F (Part B).

    Clearance (CL/F) will be calculated by PhoenixWinNonlin software (V8.0 or higher).

    Measured: up to 113 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Aug 2021
  2. Study start9 Aug 2021
  3. Primary completion25 Oct 2023
  4. Study completion25 Oct 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05017116
Sponsor's protocol ID
RBHB1103-HK
Status last verified
Oct 2023
First submitted
10 Aug 2021
Last updated
6 Dec 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing RBD1016 and Entecavir in people with Chronic Hepatitis B, run by Suzhou Ribo Life Science Co. Ltd. at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 Dec 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Adverse events (AEs) and serious adverse events (SAEs) within 28 days after treatment (Part A) (time frame: up to 28 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Dec 2024.

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