Organ-specific Responses to Atezolizumab Plus Bevacizumab in Advanced HCC

Advanced Hepatocellular Carcinoma Clinical Trial

Official title:

Organ-specific Responses to Atezolizumab Plus Bevacizumab in Patients With Advanced Hepatocellular Carcinoma

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04862949
• Other study ID #: 2021-04-010-001
• Status: Completed
• Start date: May 1, 2021
• Est. completion date: March 9, 2023

Study information

• Verified date: March 2023
• Source: CHA University
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Hepatocellular carcinoma (HCC) is one of the most frequent causes of cancer-related deaths globally and in Korea. Many patients diagnosed at advanced stage, and systemic therapy is mainstay of treatment in patients with advanced HCC.

However, immune-checkpoint inhibitor (ICI) monotherapy did not significantly improve overall survival in phase III studies. According to previous retrospective analyses, ICI treatment in advanced HCC showed different organ-specific responses. The intrahepatic HCC was the least responsive organ to ICI treatment. The failure of phase III trials of ICI monotherapy may have been attributed to different organ-specific response pattern of ICIs.

Combination of atezolizumab plus bevacizumab is expected to overcome the immunosuppressive microenvironment of liver and may enhance intrahepatic response of ICI.

Description:

In a previous retrospective analysis of pembrolizumab treated patients with advanced melanoma and NSCLC, patients with liver metastases showed poorer PFS compared with those without liver metastases with reduced ORR. Similar observations have also been reported in metastatic of triple-negative breast cancer patients, there were no responses in patients with liver metastases. Taken together the results of previous studies, hepatic metastases had reduced response to ICI compared with metastases at other organs, regardless of cancer types.

In addition, ICI treatment in advanced HCC showed different organ-specific responses. The poorer response rate in liver to ICI might be affected by liver-specific immunosuppressive microenvironment (TME). To overcome the unfavorable immunosuppressive TME of the liver, combination strategies are needed to achieve enhanced anti-tumor immune responses or alleviated tumor-associated immunosuppression.

Since the cause of death in most HCC patients was hepatic failure due to intrahepatic HCC or underlying liver cirrhosis, the response rate to ICI of intrahepatic tumor lesions is a crucial factor in determining the overall prognosis of advanced HCC.

Therefore, we hypothesize that combination strategy of atezolizumab plus bevacizumab may increase organ specific response in patients with advanced HCC, and may improve survival outcomes accordingly.

Objectives We hypothesize that combination strategy of atezolizumab plus bevacizumab may increase organ specific response in patients with advanced HCC, and may improve survival outcomes accordingly.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 124
• Est. completion date: March 9, 2023
• Est. primary completion date: December 31, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 19 Years and older

Eligibility

Inclusion Criteria:

• Confirmed HCC pathological or non-invasive assessment according to American Association for the Study of Liver Diseases (AASLD) criteria

• ECOG performance status 0 or 1

• Patients who received Atezolizumab and Bevacizumab combination therapy as first-line systemic treatment for unresectable HCC

• Barcelona Clinic Liver Cancer (BCLC) stage B or C

• Child-Pugh class A

• Measurable lesion

• Adequate hematologic and organ function

Exclusion Criteria:

• History of autoimmune disease

• Concomitant anticoagulation at therapeutic doses. Low dose aspirin for

• cardio protection is permitted.

Related Conditions & MeSH terms

• Advanced Hepatocellular Carcinoma
• Carcinoma
• Carcinoma, Hepatocellular

Intervention

Drug:
• Atezolizumab plus bevacizumab
Atezolizumab plus bevacizumab

Locations

Country	Name	City	State
Korea, Republic of	Cha Medical Center	Seongnam-si	Gyeonggi-do

Sponsors (2)

Lead Sponsor	Collaborator
CHA University	Hoffmann-La Roche

Country where clinical trial is conducted

Korea, Republic of, 

References & Publications (23)

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* Note: There are 23 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Organ-specific response rate	Organ-specific response rate were established to evaluate the heterogenous responses of different organ systems to immunotherapy in previous analysis. We select the largest lesions representative of involved organs (up to a maximum of two per organ and five total). Lesions of each organ were measured unidimensionally. Each lesion will be evaluated according to RECIST 1.1 (CR, complete disappearance or LN short axis diameter < 1.0cm; PR, =30% reduction; PD, =20% increase; SD, neither CR, PR nor PD). New lesions did not always indicate PD, and were added to those of the original target lesions to determine the total tumor burden.	1 year

External Links

•   Lee M, Ryoo BY, Hsu CH, et al: Randomised efficacy and safety results for atezolizumab (Atezo) + bevacizumab (Bev) in patients (pts) with previously untreated, unresectable hepatocellular carcinoma (HCC). Annals of Oncology 30:v875, 2019
•   T. Yau, J.W. Park, R.S. Finn, et al: LBA38_PR - CheckMate 459: A randomized, multi-center phase III study of nivolumab (NIVO) vs sorafenib (SOR) as first-line (1L) treatment in patients (pts) with advanced hepatocellular carcinoma (aHCC).