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Atezolizumab Plus Bevacizumab Alone or Combined With External Beam Radiotherapy for HCC With Macrovascular Invasion (ALERT-HCC)

5 november 2026 bijgewerkt door: Ju Hyun Shim, Asan Medical Center

A Randomized, Multicenter, Open-Label, Phase II Trial of Atezolizumab Plus Bevacizumab Alone or Combined With External Beam RadioTherapy for HepatoCellular Carcinoma With Macrovascular Invasion (ALERT-HCC)

The recent global IMbrave150 study evaluated the combination of atezolizumab and bevacizumab versus sorafenib in 501 patients with advanced or metastatic Hepatocellular Carcinoma (HCC). The median overall survival (OS) was notably better in the atezolizumab/bevacizumab group. However, for HCC patients with intrahepatic macrovascular invasion (MVI), the prognosis remains poor, indicating a significant unmet need in this group.

External Beam Radiotherapy (EBRT) has shown promising results in treating HCC with MVI, especially when used in combination with trans-arterial chemoembolization (TACE). It has been reported that radiotherapy may make tumor cells more susceptible to immune-mediated therapy, potentially enhancing the effects of atezolizumab and bevacizumab.

Thus, this study aims to investigate the efficacy and safety of atezolizumab/bevacizumab alone versus atezolizumab/bevacizumab in combination with EBRT in HCC patients with macrovascular invasion.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

A total of 138 subjects are randomly assigned to one of two treatment groups (69 patients in the atezolizumab+bevacizumab group and 69 patients in the Atezolizumab plus Bevacizumab combined EBRT group).

  • Radiotherapy combination:

    • Atezolizumab will be administered by IV, 1200 mg on day 1 of each 21day cycle.
    • Bevacizumab will be administered by IV, 15 mg/kg on day 1 of each 21day cycle.
    • The external beam radiotherapy will commence after day 2 of the first cycle of Atezolizumab+Bevacizumab, and will be delivered in accordance with institutional protocol.

  • Atezolizumab+Bevacizumab:

    • Atezolizumab will be administered by IV, 1200 mg on day 1 of each 21day cycle.
    • Bevacizumab will be administered by IV, 15 mg/kg on day 1 of each 21day cycle.

Additional study identifiers: This study was also registered on the WHO's International Clinical Trials Registry Platform, CRIS, before the first participant was enrolled (ID: KCT0007365, Date of registration: 2022-06-08).

Studietype

Ingrijpend

Inschrijving (Werkelijk)

138

Fase

  • Fase 2

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

20 jaar tot 79 jaar (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Older than 19 years of age, lower than 80 years of age

  • Child-Pugh class A hepatic function

  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0-1

  • Patients with HCC [diagnosed according to AASLD guidelines] invading the intrahepatic vascular system

  • No prior systemic therapy for HCC

  • At least one measurable HCC lesion with ≥ 1cm diameter

  • Adequate hematologic and organ function

    • Hemoglobin ≥ 9.0 g/dL
    • Absolute neutrophil count ≥ 1,000 /mm3
    • Platelet ≥ 50,000/ mm3 without transfusion

  • Total bilirubin ≤ 2.5 mg/dL

Exclusion Criteria:

  • Treatment history of prior systemic treatment of HCC
  • Liver transplant recipients
  • Patients with peptic ulcer, untreated or incompletely treated varices with bleeding or high-risk for bleeding
  • Any serious illness (e.g., active infection or inflammatory condition) or uncontrolled severe medical comorbidity
  • A history of treated malignancy (other than HCC) is allowable if the patient's malignancy has been in complete remission, off chemotherapy and without additional surgical intervention, during the preceding two years
  • Abdominal/pelvic radiotherapy within 28 days prior to initiation of study treatment, except palliative radiotherapy to bone lesions within 7 days prior to initiation of study treatment

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Radiotherapy combination

Atezolizumab+Bevacizumab, combined EBRT to vascular invasion

  • Atezolizumab will be administered by IV, 1200 mg on day 1 of each 21day cycle.
  • Bevacizumab will be administered by IV, 15 mg/kg on day 1 of each 21day cycle.
  • The external beam radiotherapy will commence after day 2 of the first cycle of A+B, and will be delivered in accordance with institutional protocol.
Straling: Atezolizumab plus bevacizumab, combined EBRT to vascular invasion

The external beam radiotherapy will commence after day 2 of the first cycle of atezolizumab+bevacizumab, and will be delivered in accordance with institutional protocol.

3D-conformal radiotherapy technique is used to determine target volumes, radiation ports, and dose prescriptions by using a 3D radiotherapy planning system.

The gross tumor volume (GTV) includes vascular invasion and a 2-cm margin into the contiguous HCC. The GTV can consist of the entire HCC and vascular invasion at the discretion of the investigator.

The target dose is 45 Gy, however, the total dose can be reduced as low as 30 Gy according to the liver function, liver volumes, or the maximum dose to the stomach/duodenum during the planning process according to the judgment of the radiation oncologist of each participating sites.
Actieve vergelijker: Atezolizumab+Bevacizumab
  • Atezolizumab will be administered by IV, 1200 mg on day 1 of each 21day cycle.
  • Bevacizumab will be administered by IV, 15 mg/kg on day 1 of each 21day cycle.
Geneesmiddel: Atezolizumab plus bevacizumab

Atezolizumab plus bevacizumab q3w

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
progression-free survival rate
Tijdsspanne: up to approximately 3 years

Randomization to the first occurrence of disease progression or death from any cause, whichever occurs first
up to approximately 3 years

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Overall survival rate
Tijdsspanne: up to approximately 3 years

Randomization to death from any cause, through the end of study
up to approximately 3 years
Objective response
Tijdsspanne: up to approximately 3 years

complete response or partial response as determined by the Investigator according to RECIST V1.1
up to approximately 3 years
Adverse reaction rate
Tijdsspanne: through study completion, up to approximately 3 years

Adverse reaction rate assessed by CTCAE version 5
through study completion, up to approximately 3 years
Time to deterioration
Tijdsspanne: through study completion, up to approximately 3 years

The time from randomization to first deterioration (decrease from baseline of ≥10 points) in the patient-reported global health status (GHS) / Quality of life (QoL), physical function, or role function scales of the EORTC QLQ-C30, maintained for two consecutive assessments, or one assessment followed by death from any cause within 3 weeks
through study completion, up to approximately 3 years
Duration of response
Tijdsspanne: up to approximately 3 years

the time interval from the date of first occurrence of a documented objective response (CR or PR, whichever status is recorded first) until the first date that disease progression or death is documented, whichever occurs first. DOR will be assessed in patients who had an objective response.
up to approximately 3 years
Tumor marker response (AFP, PIVKA-II)
Tijdsspanne: through study completion, up to approximately 3 years

The decrease of >20% in serum concentration of each marker from baseline across all time points during study period.
through study completion, up to approximately 3 years

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Asan Medical Center

Medewerkers

Seoul National University Hospital
Soon Chun Hyang University
Hanyang University Guri Hospital

Onderzoekers

  • Hoofdonderzoeker: Ju Hyun Shim, Asan Medical Center

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

22 oktober 2022

Primaire voltooiing (Werkelijk)

25 februari 2026

Studie voltooiing (Werkelijk)

25 februari 2026

Studieregistratiedata

Eerst ingediend

27 juli 2023

Eerst ingediend dat voldeed aan de QC-criteria

7 augustus 2023

Eerst geplaatst (Werkelijk)

15 augustus 2023

Updates van studierecords

Laatste update geplaatst (Werkelijk)

9 november 2026

Laatste update ingediend die voldeed aan QC-criteria

5 november 2026

Laatst geverifieerd

1 juli 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • KCT0007365
  • KCT0007365 (Register-ID: CRIS (International Clinical Trials Registry Platform))

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

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