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Hepatitis B clinical trials

The registry lists 1,045 studies for Hepatitis B across more than 10 countries. 139 are recruiting or about to start. 590 of them are mainly about Hepatitis B (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its narrower condition Hepatitis B, Chronic too: 1,775 studies, 255 open.

ClinicalTrials.gov finds 2,075 studies for Hepatitis B. How that becomes 1,045 here

This page counts the studies the registry files under Hepatitis B, and those it files under no condition that list Hepatitis Bthemselves. Each study its search finds is placed by how the registry filed it and by the conditions it lists. ClinicalTrials.gov counts as of Nov 8, 2026. How condition pages count

  1. 2,075Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −730Filed under a narrower condition, counted on its own pageHepatitis B, Chronic 700
  3. −23List Hepatitis B as a condition, but the registry did not file them under itMost often written as “Cirrhosis Due to Hepatitis B” (6), “Hepatitis B Reactivation” (2), and “Hepatitis B Vaccination” (2). The registry filed them under other conditions only, most often Fibrosis (5) and Hepatitis (3).
  4. −277Match it another way205 name it in the title, 17 in a keyword, and 55 by a synonym or other text the search reads.
  5. 1,045The count on this page40 of them list Hepatitis B in their own words; the registry filed them under no condition.

Get an email when these change. Save the Hepatitis B studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.

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Example · made-up studies

Breast cancer · Recruiting: 2 came in, 3 changed

What changed in your saved searches, Oct 31 – Nov 6:

A study of drug A after surgery for early breast cancer

Came in · now Recruiting

Drug B with hormone therapy in advanced breast cancer

Changed

· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

Exercise during chemotherapy

Now Active, not recruiting

One email a week for all your saved searches. Stop any time.

Status

Completed
616
Status unknown
177
Recruiting
79
Terminated
58
Not yet recruiting
54
Active, not recruiting
30

Phase

Phase 3
199
Phase 4
184
Phase 2
173
Phase 1
111
Early Phase 1
4

Where

United States
197
China
191
Canada
84
France
80
Korea, Republic of
77
Taiwan
73

Who runs them

GlaxoSmithKline (143) · Sanofi Pasteur, a Sanofi Company (30) · Gilead Sciences (22) · National Taiwan University Hospital (20) · Merck Sharp & Dohme LLC (17) · Third Affiliated Hospital, Sun Yat-Sen University (17) · National Institute of Allergy and Infectious Diseases (NIAID) (15) · Dynavax Technologies Corporation (13)

What is being tested here

Drugs under test in Hepatitis B studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
Tenofovir alafenamide9119
Entecavir6532
Bepirovirsen3216
Hepatitis B Virus Antisense Oligonucleotide AHB-137303
Peginterferon alfa-2a1317
Heplisav-B1411
Hepatitis B hyperimmune globulin139
Peginterferon alfa-2b127
Hepatitis B Surface Antigens105
Imdusiran sodium103

Drug classes tested here Reverse transcriptase inhibitors 67 · Statins 3

Coming up

12phase 3 studies under way
43studies finish main data collection within a year1 of them phase 3

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The 10 nearest, phase 3 first

Who these studies take

Of the 79 Hepatitis B studies recruiting now, 40 (51%) set no upper age limit and 34 (43%) stop at 75 or younger. 13 (16%) take children under 18. 5 (6%) are for women only and 1 (1%) for men only; 19 (24%) take healthy volunteers.

Recruiting studies that take each age, of 79
AgeWomenMen
1010 (13%)8 (10%)
1871 (90%)68 (86%)
3075 (95%)71 (90%)
4074 (94%)70 (89%)
5073 (92%)70 (89%)
6567 (85%)66 (84%)
7548 (61%)47 (59%)
8542 (53%)41 (52%)

Across all 1,045 studies, recruiting or not: 58% stop at 75 or younger and 44% at 65; 31% take children; 5% are for women only and 2% for men only; 39% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Hepatitis B studies take

Of 63 phase 4 interventional studies under Hepatitis B, half reached primary completion within 35 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 114 mo7–27 · 58 studies13 mo7–24 · 49 studies—
Phase 230 mo19–40 · 50 studies33 mo19–40 · 40 studies—
Phase 315 mo9–34 · 49 studies13 mo9–23 · 41 studies—
Phase 435 mo12–59 · 63 studies—42 mo17–66 · 47 studies
Interventional, no phase29 mo11–47 · 68 studies—30 mo11–47 · 62 studies
Observational55 mo17–126 · 81 studies—59 mo17–126 · 69 studies

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

What changed recently

From the registry's own updates since Oct 13, 2026.

Started recruiting2

Newly registered5

Studies

Recruiting first, then most recently updated. Showing 50 of 1,045. Browse all 1,045 → or search them.