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> Record changed: 2026-10-13

# Phase III Study of Rilvegostomig in Combination With Bevacizumab With or Without Tremelimumab as First-line Treatment of Hepatocellular Carcinoma

NCT06921785

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

Phase

Phase 3

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

Recruitment status

Recruiting

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

Participants

1,220

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

Lead sponsor

AstraZeneca

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

Start date

2025-05-06

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

Number of sites

220

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Title and summary

**Summary**

This is a Phase III, randomised, open-label, sponsor-blinded, 3-arm, multicentre, global study assessing the efficacy and safety of rilvegostomig in combination with bevacizumab with or without tremelimumab compared to atezolizumab in combination with bevacizumab. This study will be conducted in participants with advanced HCC who are not amenable to curative therapy or locoregional therapy

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Acronym**

ARTEMIDE-HCC01

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Short title**

Phase III Study of Rilvegostomig in Combination With Bevacizumab With or Without Tremelimumab as First-line Treatment of Hepatocellular Carcinoma

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Official title**

A Phase III, Randomised, Open-label, Sponsor-blinded, Multicentre Study of Rilvegostomig in Combination With Bevacizumab With or Without Tremelimumab as First-line Treatment in Patients With Advanced Hepatocellular Carcinoma

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Status and phase

**Control arm**

Active comparator

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Registry reports results**

No

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Listing at source**

Listed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Recruitment status**

Recruiting

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Phase**

Phase 3

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Study type**

Interventional

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Dates

**Completion date**

2030-03-15

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**First posted**

2025-04-10

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Registry last updated**

2026-07-14

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Primary completion date**

2029-03-16

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Start date**

2025-05-06

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Size and sites

**Participants**

1,220

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Participant count basis**

Estimated

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Planned participants**

1,220

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Protocol amendments**

2

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Number of sites**

220

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Sponsor and oversight

**Data monitoring committee**

Yes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Registry sponsor category**

Industry

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Lead sponsor**

AstraZeneca

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Source registry**

ClinicalTrials.gov

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Identifiers

**Registry ID**

NCT06921785

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**ClinicalTrials.gov ID**

NCT06921785

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

**Registry record**

Open registry record

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Study design

**Allocation**

Randomised

**Model**

Parallel groups

**Purpose**

Treatment

**Masking**

Single masking

**Masking description**

The study will be conducted "Sponsor-blinded", Sponsor personnel directly involved in the study conduct will not have access to efficacy data aggregated by intervention arm prior to study unbinding.

**Masked roles**

Outcome assessors

Sources for study design

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Outcomes

### Primary outcomes

1. To demonstrate the efficacy of Arm A relative to Arm C by assessment of OS in participants with advanced HCC  
Timeframe: Up to approximately 6 years  
OS is defined as the time from randomisation until the date of death due to any cause.

### Secondary outcomes

1. To demonstrate the efficacy of Arm B relative to Arm C by assessment of OS in participants with advanced HCC  
Timeframe: Up to approximately 6 years  
OS is defined as the time from randomisation until the date of death due to any cause.
2. To further demonstrate the efficacy of Arm A relative to Arm C and Arm B relative to Arm C in participants with advanced HCC  
Timeframe: Up to approximately 6 years  
PFS according to RECIST 1.1
3. To further demonstrate the efficacy of Arm A relative to Arm C and Arm B relative to Arm C in participants with advanced HCC  
Timeframe: Up to approximately 6 years  
ORR according to RECIST 1.1
4. To further demonstrate the efficacy of Arm A relative to Arm C and Arm B relative to Arm C in participants with advanced HCC  
Timeframe: Up to approximately 6 years  
DoR according to RECIST 1.1
5. To demonstrate the efficacy of Arm A relative to Arm B in participants with advanced HCC  
Timeframe: Up to approximately 6 years  
OS
6. To demonstrate the efficacy of Arm A relative to Arm B in participants with advanced HCC  
Timeframe: Up to approximately 6 years  
PFS
7. To demonstrate the efficacy of Arm A relative to Arm B in participants with advanced HCC  
Timeframe: Up to approximately 6 years  
ORR
8. To demonstrate the efficacy of Arm A relative to Arm B in participants with advanced HCC  
Timeframe: Up to approximately 6 years  
DoR
9. To demonstrate the efficacy of Arm A relative to Arm C in the population defined by PD-L1 expression subgroups  
Timeframe: Up to approximately 6 years  
Association of PD-L1 expression level with: • OS
10. To demonstrate the efficacy of Arm A relative to Arm C in the population defined by PD-L1 expression subgroups  
Timeframe: Up to approximately 6 years  
Association of PD-L1 expression level with: • PFS per RECIST 1.1
11. To demonstrate the efficacy of Arm A relative to Arm C in the population defined by PD-L1 expression subgroups  
Timeframe: Up to approximately 6 years  
Association of PD-L1 expression level with: • ORR per RECIST 1.1
12. To demonstrate the efficacy of Arm B relative to Arm C in the population defined by PD-L1 expression subgroups  
Timeframe: Up to approximately 6 years  
Association of PD-L1 expression level with: OS
13. To demonstrate the efficacy of Arm B relative to Arm C in the population defined by PD-L1 expression subgroups  
Timeframe: Up to approximately 6 years  
Association of PD-L1 expression level with: PFS per RECIST 1.1
14. To demonstrate the efficacy of Arm B relative to Arm C in the population defined by PD-L1 expression subgroups  
Timeframe: Up to approximately 6 years  
Association of PD-L1 expression level with: ORR per RECIST 1.1
15. To investigate the immunogenicity of Arm A and Arm B  
Timeframe: Up to approximately 6 years  
Presence of ADAs for tremelimumab and rilvegostomig
16. Occurrence of adverse events (AEs) and serious adverse events (SAEs)  
Timeframe: Up to approximately 6 years  
Occurrence of AEs and SAEs will be graded according to the revised NCI CTCAE v5.0.

Sources for outcomes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Eligibility

**Sex**

All

**Age groups**

Adults, Older adults

**Minimum age**

18 Years

**Healthy volunteers**

No

### Inclusion criteria

- Locally advanced or metastatic and/or unresectable HCC
- WHO/ECOG performance status of 0 or 1
- BCLC stage B (that is not eligible for locoregional therapy) or stage C.
- Child-Pugh Score class A
- At least one measurable target lesion
- Participants with active HBV infection must receive antiviral therapy for a minimum of 14 days prior to randomization to show evidence of HBV stabilization or signs of viral response.
- Participants with active HCV infection must be well controlled. Participants co-infected with HBV and HCV are not eligible.
- Adequate organ and bone marrow function measured during the screening period.
- Adequate organ and bone marrow function measured during the screening period
- Must not have received prior systemic therapy for intermediate, advanced, or metastatic HCC.
- Disease that is not amenable to curative surgical and/or locoregional therapies. For participants who received locoregional therapy for HCC, locoregional therapy must have been completed ≥ 28 days prior to the baseline scan for the current study.

### Exclusion criteria

Medical condition

- Any evidence of uncontrolled intercurrent diseases
- Active or prior documented autoimmune or inflammatory disorders requiring chronic treatment with steroids or other immunosuppressive treatment
- History of another primary malignancy
- Persistent toxicities caused by previous anti-cancer therapy excluding alopecia, not yet improved to Grade ≤ 1 or baseline.
- Clinically meaningful ascites, pleural effusion, or pericardial effusion requiring non-pharmacologic intervention to maintain symptomatic control within 6 months prior to the first scheduled dose.
- History of active primary immunodeficiency or active infection
- History of hepatic encephalopathy
- Current or recent (within 10 days of first dose of study treatment) use of aspirin (≥ 325 mg/day) or treatment with dipyridamole, ticlopidine, clopidogrel, and cilostazol
- Current or recent (within 10 days prior to study treatment start) use of full-dose oral or parenteral anticoagulants or thrombolytic agents for therapeutic (as opposed to prophylactic) purposes is ineligible
- History of significant bleeding disorders, vasculitis, or a significant bleeding episode from the GI tract within 6 months prior to study randomization.
- Participants with untreated or incompletely treated varices with bleeding or high-risk (red wale signs or other high-risk factors) for bleeding.

HCC related

- Known fibrolamellar HCC, sarcomatoid HCC, or mixed cholangiocarcinoma and HCC.
- Central nervous system metastases or spinal cord compression (including asymptomatic and adequately treated disease)
- Prior treatment with anti-CTLA-4 and/or anti-TIGIT.
- Radiotherapy within 28 days and abdominal/ pelvic radiotherapy within 60 days prior to initiation of study treatment, except palliative radiotherapy to bone lesions within 7 days prior to initiation of study treatment

Sources for eligibility

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Sites

- Research SitePhoenix, United StatesRecruiting
- Research SiteTucson, United StatesRecruiting
- Research SiteLos Angeles, United StatesNot yet recruiting
- Research SitePalo Alto, United StatesRecruiting
- Research SiteNew Haven, United StatesRecruiting
- Research SiteNewark, United StatesRecruiting
- Research SiteJacksonville, United StatesRecruiting
- Research SiteAtlanta, United StatesRecruiting
- Research SiteAtlanta, United StatesWithdrawn
- Research SiteHonolulu, United StatesWithdrawn
- Research SiteChicago, United StatesNot yet recruiting
- Research SiteIndianapolis, United StatesNot yet recruiting
- Research SiteShreveport, United StatesNot yet recruiting
- Research SiteDetroit, United StatesNot yet recruiting
- Research SiteGrand Rapids, United StatesRecruiting
- Research SiteRochester, United StatesRecruiting
- Research SiteSt Louis, United StatesNot yet recruiting
- Research SiteNew Brunswick, United StatesRecruiting
- Research SiteNew York, United StatesRecruiting
- Research SiteNew York, United StatesNot yet recruiting
- Research SiteNew York, United StatesNot yet recruiting
- Research SiteCleveland, United StatesWithdrawn
- Research SiteOklahoma City, United StatesNot yet recruiting
- Research SitePhiladelphia, United StatesNot yet recruiting
- Research SitePittsburgh, United StatesRecruiting

And 195 more, listed on the interactive page.

Sources for sites

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06921785)

## Related records

### Drugs (4)

- [Atezolizumab](https://trialight.com/data/asset/atezolizumab-2cce6944-73b7-49f4-8125-4e6747997b82.md)
- [Bevacizumab](https://trialight.com/data/asset/bevacizumab-a9e09d09-2d3c-4fda-ad45-01fd000dd363.md)
- [Rilvegostomig](https://trialight.com/data/asset/rilvegostomig-00c6e431-24ca-4fba-9919-bbbb6f9171d5.md)
- [Tremelimumab](https://trialight.com/data/asset/tremelimumab-24e58585-33c8-4837-b098-dae8de9e4d79.md)

### Lead sponsors (1)

- [AstraZeneca](https://trialight.com/data/company/astrazeneca-347ee8c0-c709-4614-b67b-0061b353dff7.md)

### Conditions (1)

- [Hepatocellular carcinoma](https://trialight.com/data/condition/hepatocellular-carcinoma-fc1014ac-5a3c-551d-98ea-95306009e299.md) Primary condition

### Targets (3)

- [CD274](https://trialight.com/data/target/cd274-67467e37-9325-584a-be55-e3ef69f22b4c.md)
- [CTLA4](https://trialight.com/data/target/ctla4-ba502748-1564-5251-a6a1-96e2f7035fe9.md)
- [VEGFA](https://trialight.com/data/target/vegfa-d5a98392-6ee9-5b71-b7a2-9a73ce1575d2.md)

---

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