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A Phase I/II Study to Evaluate AZD5851 in GPC3+ Advanced/Recurrent Hepatocellular Carcinoma

A Phase I/II Open-Label Study to Evaluate the Safety, Cellular Kinetics and Efficacy of AZD5851, a Chimeric Antigen Receptor T-Cell (CAR-T) Therapy Directed Against GPC3 in Adult Participants With Advanced/Recurrent Hepatocellular Carcinoma: ATHENA

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06084884
Acronym
ATHENA
Enrollment
94
Registered
2023-10-16
Start date
2023-12-14
Completion date
2027-12-13
Last updated
2026-08-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hepatocellular Carcinoma

Keywords

Hepatocellular Carcinoma, Liver Cancer, Liver Neoplasm, advanced HCC, HCC, Metastatic Liver Cancer, CAR-T, CART, AZD5851, T-cell, Cell Therapy

Brief summary

A Phase I/II study to evaluate AZD5851 in patients with GPC3+ advanced/recurrent hepatocellular carcinoma.

Detailed description

This first-time in human, single-arm, open-label multicentre Phase I/II study will evaluate the safety, tolerability, antitumour activity, cellular kinetics, pharmacodynamics, and immunogenicity of AZD5851 in adult participants with GPC3+ advanced/recurrent HCC, where at least one line of prior therapy has failed/or was intolerable, or participant/investigator decision.

Interventions

BIOLOGICALAZD5851

Subjects 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.

Sponsors

AstraZeneca
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Masking description

Open-label

Eligibility

Sex/Gender
ALL
Age
18 Years to 130 Years
Healthy volunteers
No

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 tolerate at least one prior line of standard systemic therapy for HCC and/or participant/investigator decision. 4. GPC3-positive tumour as determined by a central laboratory using an analytically validated IHC assay 5. Barcelona Clinic Liver Cancer Stage B (if not amenable to local treatment/surgery) or C prior to apheresis 6. Child-Pugh score: Grade A 7. Participants with HBV and HCV undergoing management of these infections per institutional practice.

Exclusion criteria

1. Active or prior documented gastrointestinal (GI) variceal bleed or history of upper GI bleeding, ulcers, or esophageal varices with bleeding within 12 months 2. History of liver transplantation or on waiting list 3. Current clinically significant ascites 4. Main portal vein thrombus, or tumor thrombus invasion of mesenteric vein / inferior vena cava 5. Uncontrolled intercurrent illness 6. Active Infections 7. Positive serology for HIV 8. History of hepatic encephalopathy within 12 months prior to treatment allocation 9. History of chronic or recurrent (within the last year) severe autoimmune or immune mediated disease requiring steroids or other immune-suppressive treatments. 10. Prior treatment with any CAR-T therapy directed at any target or any therapy that is targeted to GPC3. 11. Receipt of the last dose of anticancer therapy (chemotherapy, immunotherapy, endocrine therapy, targeted therapy, biologic therapy, tumour embolisation, or monoclonal antibodies, investigational product) within 5 half-lives or ≤ 21 days (whichever is shortest).

Design outcomes

Primary

MeasureTime frameDescription
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 phaseThrough study completion, an average of 2 yearsDetermine 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

MeasureTime frameDescription
1. Proportion of participants with a confirmed Complete Response (CR) or Partial Response (PR)Through study completion, an average of 2 yearsEvaluation of the efficacy of the treatment by assessment of the Overall Response Rate according to RECIST v1.1 (ORR)
2. Interval between the date of AZD5851 infusion dose and first documented evidence of CR or PRThrough study completion, an average of 2 yearsEvaluation of the efficacy of the treatment by assessment of time to first response (TTR)
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 infusionThrough study completion, an average of 2 yearsEvaluation of the efficacy of the treatment by assessment of disease control rate according to RECIST v1.1 (DCR)
4. The proportion of participants who have a confirmed response (CR/PR) with a duration of at least a specific number of monthsThrough study completion, an average of 2 yearsEvaluation of the efficacy of the treatment by assessment of durable response rate according to RECIST v1.1 (DRR)
5. The best response the participant achieved according to RECIST v1.1Through study completion, an average of 2 yearsEvaluation of the efficacy of the treatment by assessment of best overall response according to RECIST v1.1 (BoR)
6. Interval between the date of first documented objective response date of first documented disease progression or the last evaluable assessment in the absence of progressionThrough study completion, an average of 2 yearsEvaluation of the efficacy of the treatment by assessment of duration of response according to RECIST v1.1 (DoR)
7. Interval between the date of first T cell infusion and the earliest date of disease progression or death due to any causeThrough study completion, an average of 2 yearsEvaluation of the efficacy of the treatment by assessment of progression-free survival (PFS)
8. Interval between the date of first T cell infusion and date of death due to any causeThrough study completion, an average of 2 yearsEvaluation of the efficacy of the treatment by assessment of overall survival (OS)
9. Pharmacokinetics - maximum serum concentration of AZD5851Through study completion, an average of 2 yearsMaximum blood concentration (Cmax)
10. Pharmacokinetics -time to peak serum concentration of AZD5851Through study completion, an average of 2 yearsTime to peak (maximum) blood concentration (Tmax)
11. Pharmacokinetics -time to last measurable serum concentration of AZD5851Through study completion, an average of 2 yearsTime to last detectable blood concentration (Tlast)
12. Pharmacokinetics - Exposure of AZD5851Through study completion, an average of 2 yearsArea under the curve (AUC)

Countries

Japan, South Korea, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 20, 2026