Atezolizumab and Bevacizumab Pre-Liver Transplantation for Patients With Hepatocellular Carcinoma Beyond Milan Criteria

Trial statusRecruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexAll
Age18+
SponsorThe Methodist Hospital Research Institute

About this trial

Patients with hepatocellular carcinoma (HCC) beyond Milan Criteria (MC) who are transplant-eligible will be treated with 6 months of neoadjuvant/downstaging atezolizumab plus bevacizumab while receiving standard of care transarterial chemoembolization (TACE). We hypothesize that atezolizumab and bevacizumab can appropriately bridge patients with HCC beyond MC to transplantation and not increase the risk of 1-year post-transplant rejection.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Male or female, aged ≥18 years old at the time of signing Informed Consent Form

Measurable or evaluable disease per RECIST v1.1 or mRECIST of unresectable HCC outside of Milan criteria

Histologically proven HCC, without extrahepatic disease. Patients who consent to a fresh tissue biopsy, and under the discretion of the Investigators, will provide a baseline biopsy sample for diagnosis and correlative studies. Archival tumor tissue may be used to confirm HCC in patients who do not consent to a fresh tissue biopsy.

Prior remote LRT is allowed if new lesions or local disease recurrence are present

Disqualifiers

Known fibrolamellar HCC, sacromatoid HCC, or mixed cholangiocarcinoma and HCC

Previous systemic therapy for HCC prior to study enrollment

Planned or prior multi-organ transplant or prior solid organ or allogeneic stem cell transplantation

History of Grade ≥4 venous thromboembolism

Trial design

Design model

Single group

Treatments tested in this trial

  • Atezolizumab

    Drug

    1200 mg administered every three weeks for up to 6 months (up to 8 cycles) during the liver transplant waiting period

  • Bevacizumab

    Drug

    15 mg/kg administered every three weeks for up to 6 months (up to 8 cycles) during the liver transplant waiting period

Treatment groups

24 Participants
are divided into 1 treatment group
Group A: Atezolizumab + BevacizumabExperimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

Proportion of Patients Receiving Liver Transplant Experiencing Acute Rejection

The proportion of liver transplant patients who have acute allograft rejection

Time frame
Within 1 year after liver transplant

Secondary outcomes

1

Proportion of participants who experience treatment-emergent adverse events

Number of patients who experience an FDA-defined adverse event due to the experimental treatment

Time frame
Within 90 days of study drug administration
2

Objective Response Rate

Combined incidence of partial response and complete response of tumors to therapy per RECIST criteria

Time frame
6 months post study drug initiation
3

Proportion of participants who are removed from the liver transplant waiting list after initiating the atezolizumab/bevacizumab therapy

Number of participants who had been on the liver transplant waitlist but are removed

Time frame
Through study completion, up to 4 years
4

The proportion of participants who proceed to liver transplantation

Participants who receive a liver transplant

Time frame
Through study completion, up to 4 years

Other outcomes

Sponsors and contacts

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