A Phase 1 interventional study of SCTA02A and Placebo in Hepatitis B, sponsored by Sinocelltech Ltd.. Not yet recruiting at 1 site in China. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-29.
Sponsored by Sinocelltech Ltd. (part of Sinocelltech Group Limited) · Phase 1, Interventional, and Treatment
Study SCTA02A-A101 is designed to assess the safety, tolerability and pharmacokinetics of SCTA02A in healthy volunteers and participants with chronic hepatitis B virus infection. Eligible participants will receive study treatment in this phase 1 dose-escalation study. All treated patients will also undergo a safety follow-up period after last study drug administration.
SCTA02A, a hepatitis B virus neutralizing monoclonal antibody. This Phase I dose-escalation study consists of two parts: Part Ia is a single ascending dose study in healthy volunteers with 24 participants; Part Ib is a multiple ascending dose study in participants with chronic HBV infection with 36 participants, and will assess preliminary efficacy.
895 studies on the registry are indexed under Hepatitis B, Chronic; 151 are open to participants now.
This study's planned enrollment of 60 is below the median of 100 across 659 interventional studies indexed under Hepatitis B, Chronic.
Browse Hepatitis B, Chronic studies →Sinocelltech Ltd. is the lead sponsor of 82 studies on the registry; 33 are open to participants now.
Compared within Hepatitis B, Chronic, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Hepatitis B. The counts are of registry records indexed under each term, refreshed daily. How we classify →
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Excipients
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Biological: SCTA02A
Biological: Placebo
SCTA02A, an investigational monoclonal antibody.
Placebo
Incidence and severity of treatment-related adverse events (TRAEs) after administration.Maximum tolerated dose(MTD)
Time frame: up to 16 weeks
HBsAg change from baseline (Ib)
Time frame: up to 16 weeks
Maximum Plasma Concentration (Cmax)
Time frame: up to 16 weeks
Time to Reach Maximum Plasma Concentration (Tmax)
Time frame: up to 16 weeks
Apparent Terminal Elimination Half-life (t1/2)
Time frame: up to 16 weeks
Immunogenicity: ADA
Time frame: up to 16 weeks
Incidence and severity of adverse events (AE) , serious adverse events (SAE) and adverse events of special interest (AESI)
Time frame: up to 16 weeks
HBV DNA change from baseline (Ib)
Time frame: up to 16 weeks
proportion of HBV DNA < LLOQ (Ib)
Time frame: up to 16 weeks
ALT change from baseline (Ib)
Time frame: up to 16 weeks
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.