Adjuvant Radiotherapy of Sintilimab Versus TACE for HCC

NCT ID: NCT07186621

Last Updated: 2025-09-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

286 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-10

Study Completion Date

2028-11-30

Brief Summary

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This study is an open-label, randomized controlled, multicenter, phase III clinical trial

Detailed Description

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This study is an open-label, randomized controlled, multicenter, phase III clinical trial where participants are randomized in a 1:1 ratio to either the experimental or control group. The experimental group will initiate radiotherapy within 4 months postoperatively with prescribed doses of 44-50Gy in 22-25 fractions to the tumor bed and 56-60Gy in 22-25 fractions to narrow-margin areas adjacent to major blood vessels, along with concurrent sintilimab 200mg q3w for 2 cycles followed by maintenance sintilimab 200mg q3w for 15 cycles (approximately 1 year total treatment duration) until disease progression or unacceptable toxicity. The control group will receive the first TACE procedure within 4 months postoperatively, with the decision on administering a second TACE to be determined by the investigator based on the patient's condition and first TACE response assessment. The primary endpoint is 2-year recurrence-free survival (RFS) rate, while secondary endpoints include 2-year overall survival (OS) rate and incidence of adverse events.

Conditions

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Hepatocellular Carcinoma (HCC) Radiotherapy, Adjuvant Immune Checkpoint Inhibitor TACE Narrow Margin

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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control group

The control group will receive the first TACE procedure within 4 months postoperatively, with the decision on administering a second TACE to be determined by the investigator based on the patient's condition and first TACE response assessment.

Group Type ACTIVE_COMPARATOR

TACE

Intervention Type PROCEDURE

The control group will receive the first TACE procedure within 4 months postoperatively, with the decision on administering a second TACE to be determined by the investigator based on the patient's condition and first TACE response assessment.

experiment group

The experimental group will initiate radiotherapy within 4 months postoperatively with prescribed doses of 44-50Gy in 22-25 fractions to the tumor bed and 56-60Gy in 22-25 fractions to narrow-margin areas adjacent to major blood vessels, along with concurrent sintilimab 200mg q3w for 2 cycles followed by maintenance sintilimab 200mg q3w for 15 cycles (approximately 1 year total treatment duration) until disease progression or unacceptable toxicity.

Group Type EXPERIMENTAL

Sintilimab

Intervention Type DRUG

concurrent sintilimab 200mg q3w for 2 cycles followed by maintenance sintilimab 200mg q3w for 15 cycles (approximately 1 year total treatment duration) until disease progression or unacceptable toxicity

radiotherapy

Intervention Type RADIATION

The experimental group will initiate radiotherapy within 4 months postoperatively with prescribed doses of 44-50Gy in 22-25 fractions to the tumor bed and 56-60Gy in 22-25 fractions to narrow-margin areas adjacent to major blood vessels

Interventions

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Sintilimab

concurrent sintilimab 200mg q3w for 2 cycles followed by maintenance sintilimab 200mg q3w for 15 cycles (approximately 1 year total treatment duration) until disease progression or unacceptable toxicity

Intervention Type DRUG

radiotherapy

The experimental group will initiate radiotherapy within 4 months postoperatively with prescribed doses of 44-50Gy in 22-25 fractions to the tumor bed and 56-60Gy in 22-25 fractions to narrow-margin areas adjacent to major blood vessels

Intervention Type RADIATION

TACE

The control group will receive the first TACE procedure within 4 months postoperatively, with the decision on administering a second TACE to be determined by the investigator based on the patient's condition and first TACE response assessment.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. R0 resection of hepatocellular carcinoma (HCC) with a surgical margin \<1 cm (determined by postoperative pathology, surgical records, and imaging).
2. Within 4 months after curative resection.
3. High-Risk Recurrence Factors (at least one required in addition to narrow margin): (1) Microvascular invasion (MVI) positive, tumor thrombus, or satellite nodules (2) Preoperative AFP \>400 ng/mL (3) Tumor \>5 cm with incomplete capsule
4. ≥18 and ≤80 years old.
5. ECOG score 0-1.
6. Child-Pugh Class: A5, A6, or B7.
7. Postoperative Contrast-enhanced MRI of the liver must be performed to exclude intrahepatic residual lesions.
8. HBV DNA and HCV RNA status do not affect eligibility, but if HBV DNA positive and/or HCV RNA positive: ALT must be \<1.5× upper limit of normal (ULN). Antiviral therapy must be initiated.
9. Liver Function Tests (LFTs): ALT ≤2.5× ULN (if HBV/HCV positive, ALT ≤1.5× ULN). If ALT ≤1.5× ULN, AST ≤6× ULN (excluding AST elevation due to myocardial infarction). If ALT 1.5-2.5× ULN, AST ≤2.5× ULN.
10. No significant ECG abnormalities and no severe cardiac dysfunction.
11. Serum creatinine (CRE) and BUN ≤2.5× ULN.
12. Hb≥80g/L,ANC≥1.0×109 /L,PLT≥40×109 /L.
13. Written informed consent obtained.

Exclusion Criteria

1. Vp3 or Vp4 portal vein tumor thrombus (PVTT) or Vv2/Vv3 inferior vena cava (IVC) tumor thrombus on preoperative imaging.
2. Previous anti-HCC therapies, including but not limited to: targeted therapy (e.g., tyrosine kinase inhibitors), immune checkpoint inhibitors (e.g., PD-1/PD-L1 inhibitors) or systemic chemotherapy
3. Distant metastasis before randomization.
4. Moderate to severe ascites unresponsive to medical management.
5. History of other malignancies, except: carcinoma in situ,early-stage papillary thyroid cancer or basal cell carcinoma of the skin
6. Previous radiotherapy involving the abdomen.
7. Significant cardiac, renal, or other major organ dysfunction.
8. Active Autoimmune Disease or Psychiatric Disorders.
9. HIV Infection.
10. Pregnant or breastfeeding women.
11. Currently enrolled in another interventional clinical trial.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Peking University People's Hospital

OTHER

Sponsor Role collaborator

Nanfang Hospital, Southern Medical University

OTHER

Sponsor Role collaborator

Beijing 302 Hospital

OTHER

Sponsor Role collaborator

Beijing Ditan Hospital

OTHER

Sponsor Role collaborator

The Third Affiliated Hospital of Naval Medical University

UNKNOWN

Sponsor Role collaborator

Cancer Institute and Hospital, Chinese Academy of Medical Sciences

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Shuhang Wang

Role: STUDY_DIRECTOR

NCC, CICAMS

Locations

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Cancer Institute and Hospital, Chinese Academy of Medical Sciences

Beijing, , China

Site Status RECRUITING

Countries

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China

Central Contacts

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Bo Chen, MD.

Role: CONTACT

8610-87788245

Facility Contacts

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Bo Chen, MD

Role: primary

00861324000876

Other Identifiers

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NCC5448

Identifier Type: -

Identifier Source: org_study_id

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