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Radiomics Subtyping to Guide Surgery vs. Maintenance Therapy After HCC Downstaging

12. maj 2026 opdateret af: Wenzhe Fan, First Affiliated Hospital, Sun Yat-Sen University

A Retrospective Radiomics-Based Subtyping Study to Guide Post-Downstaging Treatment Selection in Patients With Unresectable Hepatocellular Carcinoma Following TACE Plus Lenvatinib and Anti PD-1

The goal of this observational study is to learn about the long-term treatment outcomes for patients with initially unresectable hepatocellular carcinoma (HCC) who achieve successful downstaging with the combination therapy of TACE, lenvatinib, and a PD-1 inhibitor. The main questions it aims to answer are:

Can distinct disease subtypes be identified in successfully downstaged patients using radiomics and clinical data?

Do these different subtypes show significant differences in long-term outcomes, such as recurrence-free survival and overall survival, after undergoing either curative-intent surgical resection or continuing maintenance therapy?

Based on the identified subtypes, can the investigators objectively determine which patients are more suitable for surgical resection and which patients may benefit more from continued maintenance therapy after successful downstaging?

The study will include patients who have already undergone the combination therapy as part of their regular medical care, successfully achieved tumor downstaging (making the tumor technically resectable), and subsequently received either surgical resection or continued maintenance treatment. Researchers will retrospectively analyze their existing clinical and imaging data to compare long-term outcomes between these two treatment paths based on their identified disease subtype.

Studieoversigt

Status

Aktiv, ikke rekrutterende

Betingelser

Intervention / Behandling

Undersøgelsestype

Observationel

Tilmelding (Anslået)

500

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Kina
    • Guangdong
      • Guangzhou, Guangdong, Kina, 510280
        • ZhuJiang Hospital of Southern Medical University
      • Guangzhou, Guangdong, Kina, 510080
        • The First Affiiated Hospital of Sun Yat-sen University

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Patients with initially unresectable hepatocellular carcinoma who were treated with a combination therapy of TACE, lenvatinib, and a PD-1 inhibitor and subsequently achieved successful tumor downstaging.

Beskrivelse

Inclusion Criteria:

  1. Patients diagnosed with hepatocellular carcinoma (HCC) based on clinical or pathological criteria;
  2. Barcelona Clinic Liver Cancer (BCLC) stage B or C, assessed as unresectable by surgical evaluation; Underwent treatment with TACE combined with lenvatinib and a PD-1 inhibitor, after which the tumor was re-evaluated and deemed resectable by surgical assessment;
  3. Following the achievement of surgical resectability criteria, patients subsequently underwent either R0 surgical resection or continued treatment with TACE combined with lenvatinib and a PD-1 inhibitor;
  4. Liver function classified as Child-Pugh Class A or B, or achieved this standard after medical treatment;
  5. Performance status (PS) score of 0 or 1.

Exclusion Criteria:

  1. Patients with unclear diagnoses or those with concurrent other malignancies.
  2. For patients in the downstaging surgery group: Those who underwent non-R0 resection or received additional anti-tumor therapies postoperatively.
  3. For patients in the maintenance treatment group: Those who received anti-tumor therapies other than TACE/lenvatinib/PD-1 inhibitors.
  4. Liver function classified as Child-Pugh Class C or above, unresponsive to hepatoprotective therapy.
  5. Patients with severe infections, such as respiratory, biliary tract, or abdominal infections.
  6. Patients with severe underlying diseases, particularly immune-related disorders.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Maintenance group
This group consists of patients with initially unresectable hepatocellular carcinoma (HCC) who, after successful downstaging achieved through the combination therapy of Transarterial Chemoembolization (TACE), lenvatinib, and a PD-1 inhibitor, continued with the same non-surgical, maintenance treatment regimen instead of undergoing surgical resection.
Procedure: TACE plus Lenvatinib and PD1 inhibiter
This intervention describes the non-surgical maintenance therapy for patients in the Maintenance Group after successful downstaging. It consists of continuing the same doses of lenvatinib and PD-1 inhibitor that were administered during the downstaging phase, combined with on-demand TACE performed only upon imaging or biomarker evidence of intrahepatic progression.
Liver Resection group
This group consists of patients with initially unresectable hepatocellular carcinoma (HCC) who, after achieving successful downstaging through the combination therapy of Transarterial Chemoembolization (TACE), lenvatinib, and a PD-1 inhibitor, underwent curative-intent surgical resection (R0 resection) as their subsequent treatment.
Procedure: Liver resection
This intervention consists of curative-intent surgical resection of hepatocellular carcinoma (HCC) performed after successful downstaging achieved through prior TACE combined with lenvatinib and PD-1 inhibitor therapy. The procedure aims to remove all visible and radiologically responsive tumor tissue to achieve a pathologically confirmed R0 resection margin.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Recurrence free survival
Tidsramme: From date of initial treatment until the date of first documented recurrence or date of death from any cause, whichever came first, assessed up to 24 months
Time interval from date of initial treatment until the date of first documented recurrence or date of death from any cause, whichever came first, assessed up to 24 months
From date of initial treatment until the date of first documented recurrence or date of death from any cause, whichever came first, assessed up to 24 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Overlevelse i alt
Tidsramme: Fra dato for indledende behandling indtil dødsdato af enhver årsag, alt efter hvad der indtræffer først, vurderet op til 24 måneder
Tidsinterval fra datoen for indledende behandling til datoen for død af enhver årsag, uanset hvad der kom først, vurderet op til 24 måneder
Fra dato for indledende behandling indtil dødsdato af enhver årsag, alt efter hvad der indtræffer først, vurderet op til 24 måneder

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

First Affiliated Hospital, Sun Yat-Sen University

Samarbejdspartnere

Zhujiang Hospital

Efterforskere

  • Ledende efterforsker: Wenzhe Fan, Dr., First Affiliated Hospital, Sun Yat-Sen University
  • Ledende efterforsker: Shunjun Fu, Dr., Southern Medical University, China

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. januar 2018

Primær færdiggørelse (Anslået)

31. december 2026

Studieafslutning (Anslået)

31. december 2026

Datoer for studieregistrering

Først indsendt

6. maj 2026

Først indsendt, der opfyldte QC-kriterier

6. maj 2026

Først opslået (Faktiske)

12. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

14. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2026-KY-180-01

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

The dataset contains detailed and potentially re-identifiable patient information, including medical images, clinical records, and treatment outcomes. Due to institutional data privacy policies, ethical restrictions related to patient confidentiality, and the lack of broad consent from participants for data sharing beyond the scope of this specific research, the investigators are unable to publicly share individual participant data (IPD). All data will be stored securely within the hospital's internal research database, and access will be restricted to the study investigators for analysis purposes only. Requests for aggregated or de-identified results may be considered upon reasonable inquiry to the corresponding author, subject to institutional review and compliance with applicable regulations.

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