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Daplusiran/Tomligisiran Dose Level 1

Phase 2

Chronic Hepatitis B Virus Infection | Small molecule | Infectious Disease |GSK plc|Last Updated: Jul 7, 2026

Success Probability

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials1
Total Enrollment283

FDA Designations

No designations recorded

Clinical trial landscape

Daplusiran/Tomligisiran Dose Level 1 · 1 trial · 2 indications

Phase 2 1
NCT06537414A Study of Sequential Therapy With Daplusiran/Tomligisiran (DAP/TOM) Followed by Bepirovirsen in Participants Living With Chronic Hepatitis B (CHB)Chronic Hepatitis B Virus Infection
ACTIVE NOT_RECRUITING283 Analytics
PHASE2ACTIVE NOT_RECRUITING
A Study of Sequential Therapy With Daplusiran/Tomligisiran (DAP/TOM) Followed by Bepirovirsen in Participants Living With Chronic Hepatitis B (CHB)
Chronic Hepatitis B Virus InfectionUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants achieving functional cure
Up to 100 Weeks

The functional cure for HBV is defined as sustained suppression (24 weeks or longer) of HBV deoxyribonucleic acid (DNA) \<lower limit of quantification (LLOQ) and HBsAg not detected with or without HBsAb after a finite duration of therapy and off all HBV treatment. The number of participants achieving functional cure after discontinuation of all chronic HBV treatments (DAP/TOM, bepirovirsen, and NA treatment) will be reported.

Secondary Endpoints

Number of participants achieving functional cure with high Baseline HBsAg level
Up to 100 Weeks
Number of participants achieving functional cure with low Baseline HBsAg level
Up to 100 Weeks
Number of participants achieving functional cure with low Baseline HBsAg level compared against placebo + bepirovirsen arm
Up to 100 Weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Treatment Arm 1A: DAP/TOM + BepirovirsenEXPERIMENTALParticipants with high Hepatitis B surface antigen (HBsAg) level will receive dose level 1 of DAP/TOM in Treatment Stage 1. After DAP/TOM Treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.
Treatment Arm 1B: DAP/TOM + BepirovirsenEXPERIMENTALParticipants with high HBsAg level will receive dose level 2 of DAP/TOM in Treatment Stage 1. After DAP/TOM treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.
Treatment Arm 2A: DAP/TOM + BepirovirsenEXPERIMENTALParticipants with low HBsAg level will receive dose level 1 of DAP/TOM in Treatment Stage 1. After DAP/TOM treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.
Treatment Arm 2B: DAP/TOM + BepirovirsenEXPERIMENTALParticipants with low HBsAg level will receive dose level 2 of DAP/TOM in Treatment Stage 1. After DAP/TOM treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.
Treatment Arm 2C: Placebo + BepirovirsenEXPERIMENTALParticipants with low HBsAg level will receive Placebo in Treatment Stage 1. After Placebo treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.

Interventions

NameTypeDescription
Daplusiran/Tomligisiran Dose Level 1DRUGDaplusiran/Tomligisiran dose level 1 will be administered
Daplusiran/Tomligisiran Dose Level 2DRUGDaplusiran/Tomligisiran dose level 2 will be administered
BepirovirsenDRUGBepirovirsen will be administered
PlaceboDRUGPlacebo will be administered
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites80

Inclusion Criteria: * Age: At least 18 years of age at the time of signing the informed consent * Documented chronic HBV infection greater than or equal to (\>=) 6 months prior to Screening AND currently receiving stable NA therapy defined as receiving an NA regimen form at least 6 months prior to ...

Countries:United StatesAustraliaBelgiumBrazilCanadaChinaFranceGermanyGreeceHong KongItalyJapanNew ZealandSingaporeSouth AfricaSouth KoreaSpainTaiwanUnited Kingdom
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Recent Changes (Last 90 Days)

MEDIUMJul 7, 2026NCT06537414Completion: 2027-05-31 → 2030-05-17
MEDIUMJul 7, 2026NCT06537414Completion: 2027-05-31 → 2030-05-17

Frequently asked questions about Daplusiran/Tomligisiran Dose Level 1

What is Daplusiran/Tomligisiran Dose Level 1 used for?

Daplusiran/Tomligisiran Dose Level 1 is an investigational small molecule being developed for the treatment of chronic hepatitis B virus infection. It is currently in Phase 2 clinical development and is being studied as part of a sequential therapy regimen followed by bepirovirsen in participants living with chronic hepatitis B.

Who makes Daplusiran/Tomligisiran Dose Level 1?

Daplusiran/Tomligisiran Dose Level 1 is being developed by GSK plc, a global biopharma company listed on the stock exchange under the ticker GSK. The company is conducting a Phase 2 clinical trial to evaluate the drug in patients with chronic hepatitis B virus infection.

What phase is Daplusiran/Tomligisiran Dose Level 1 in?

Daplusiran/Tomligisiran Dose Level 1 is in Phase 2 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The ongoing Phase 2 trial is active but not recruiting participants, with a planned enrollment of 283 patients.

What clinical trials is Daplusiran/Tomligisiran Dose Level 1 in?

Daplusiran/Tomligisiran Dose Level 1 is being evaluated in a Phase 2 clinical trial registered as NCT06537414. The study is titled 'A Study of Sequential Therapy With Daplusiran/Tomligisiran (DAP/TOM) Followed by Bepirovirsen in Participants Living With Chronic Hepatitis B (CHB)' and is active but not recruiting.

Is Daplusiran/Tomligisiran Dose Level 1 the same as DAP/TOM?

Yes, Daplusiran/Tomligisiran Dose Level 1 is also known as DAP/TOM. The clinical trial NCT06537414 refers to the drug as Daplusiran/Tomligisiran (DAP/TOM), indicating that DAP/TOM is an abbreviated name for the same investigational therapy.