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AZD5851

Phase 1

Hepatocellular Carcinoma | Monoclonal antibody | Oncology |AstraZeneca PLC|Trials Updated: Aug 19, 2026

AZD5851 development status

Highest phase Phase 1
Registered trials 3 across 2 sponsors since Oct 2023

AZD5851 target and mechanism

ModalityMonoclonal antibody

Also known as Cell Therapy

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment94

FDA Designations

No designations recorded

AZD5851 clinical trials

AZD5851 · 1 trial · 1 indication

Phase 1 1
NCT06084884A Phase I/II Study to Evaluate AZD5851 in GPC3+ Advanced/Recurrent Hepatocellular CarcinomaHepatocellular Carcinoma
ACTIVE NOT_RECRUITING94 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Phase I/II Study to Evaluate AZD5851 in GPC3+ Advanced/Recurrent Hepatocellular Carcinoma
Hepatocellular CarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

1. Incidence of participants with dose-limiting toxicities (DLTs), adverse events (AEs), including adverse events of special interest (AESI) and serious adverse events (SAEs). Determination of the recommended dose of AZD5851 for expansion phase
Through study completion, an average of 2 years

Determine if treatment with AZD5851 is safe and tolerable through assessment of DLTs, AEs, SAEs and changes from baseline in vital signs, ECGs, and laboratory parameters

Secondary Endpoints

1. Proportion of participants with a confirmed Complete Response (CR) or Partial Response (PR)
Through study completion, an average of 2 years
2. Interval between the date of AZD5851 infusion dose and first documented evidence of CR or PR
Through study completion, an average of 2 years
3. Proportion of participants who have a confirmed CR, PR, or who have stable disease (SD) for at least 5 weeks after the date of AZD5851 infusion
Through study completion, an average of 2 years
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
AZD5851EXPERIMENTALSubjects will receive AZD5851 following 3 consecutive doses of lymphodepleting chemotherapy (fludarabine and cyclophosphamide).

Interventions

NameTypeDescription
AZD5851BIOLOGICALSubjects will undergo leukapheresis to isolate peripheral blood mononuclear cells (PBMCs) to produce AZD5851. During AZD5851 production, subjects may receive bridging therapy for disease control. Upon successful generation of AZD5851 product, subjects will receive treatment with AZD5851 therapy. Study treatment will include lymphodepleting chemotherapy followed by one dose of AZD5851 administered by intravenous (IV) infusion.
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Eligibility Criteria

Age Range18 Years to 130 Years
SexALL
Healthy VolunteersNo
Study Sites19

Inclusion Criteria: 1. Participant must be 18 years or older and has voluntarily agreed to participate by giving written informed consent. 2. Participants with confirmed advanced/recurrent or metastatic and/or unresectable HCC based on histopathological findings 3. Completed or were unable to toler...

Countries:United StatesJapanSouth Korea
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Recent Changes (Last 90 Days)

LOWAug 20, 2026NCT06084884lastUpdatePostDate: changed
LOWAug 20, 2026NCT06084884lastUpdatePostDate: changed
LOWAug 20, 2026NCT06084884lastUpdatePostDate: changed
LOWAug 20, 2026NCT06084884lastUpdatePostDate: changed

Frequently asked questions about AZD5851

What is AZD5851 used for?

AZD5851 is an investigational therapy being studied for the treatment of advanced or recurrent hepatocellular carcinoma, a type of liver cancer. It is specifically being evaluated in patients whose tumors are GPC3-positive, meaning the cancer cells express the GPC3 protein. AZD5851 is not yet approved for any indication and remains in clinical development.

Who is developing AZD5851?

AZD5851 is being developed by AstraZeneca PLC, which trades on the Nasdaq under the ticker AZN. AstraZeneca is the sponsor of the clinical program evaluating this monoclonal antibody in hepatocellular carcinoma.

What phase is AZD5851 in?

AZD5851 is in Phase 1 clinical development. The ongoing study is a Phase I/II trial, and the drug has not yet advanced to later-stage testing. It is investigational and has not been approved by the FDA or any other regulatory agency for commercial use.

What clinical trials is AZD5851 in?

AZD5851 is being evaluated in a single active clinical trial, NCT06084884, titled a Phase I/II study of AZD5851 in GPC3-positive advanced or recurrent hepatocellular carcinoma. The trial is currently active but not recruiting, with an estimated enrollment of 94 participants across the United States, Japan, and South Korea.

Is AZD5851 FDA approved?

No, AZD5851 is not FDA approved. It is an investigational monoclonal antibody still in Phase 1 clinical development for hepatocellular carcinoma. Approval status has not been granted, and the drug remains available only through clinical trial participation.