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GreenLiver: Randomized study on the influence of intraoperative ICG fluorescence imaging on the R0 resection rate in minimally invasive liver resection

GreenLiver: Randomized study on the influence of intraoperative ICG fluorescence imaging on the R0 resection rate in minimally invasive liver resection - GreenLiver

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00034882
Enrollment
232
Registered
2026-02-09
Start date
2026-02-06
Completion date
Unknown
Last updated
2026-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

C78.7

Interventions

Group 1: Intraoperative ICG fluorescence imaging (0.5 mg/kg IV, administered 3-7 days preoperatively)
fluorescence-guided minimally invasive liver resection. Group 2: Standard minimally invasive liver resection without ICG administration

Sponsors

Uniklinik Magdeburg, Klinik für Allgemein-, Viszeral-, Gefäß- und Transplantationschirurgie
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Histologically or radiologically confirmed primary or secondary liver malignancy - Planned minimally invasive liver resection (robotic or laparoscopic) - Estimated glomerular filtration rate (eGFR) = 45 mL/min/1.73 m² - Existence of a written informed consent form

Exclusion criteria

Exclusion criteria: • Allergy or hypersensitivity to indocyanine green (ICG) or iodine-containing substances • Known hyperthyroidism or functional/autonomous thyroid disease • Estimated glomerular filtration rate (eGFR) < 45 mL/min/1.73 m² • Child–Pugh C liver cirrhosis • Technically or functionally unresectable tumors • Severe cognitive impairment affecting the ability to give informed consent • Pregnancy or breastfeeding • Participation in another interventional study

Design outcomes

Primary

MeasureTime frame
WHAT: R0 resection rate (defined as microscopically tumor-free resection margin in the histopathological examination of the resected specimen) WHEN: Assessment is performed postoperatively after the final histopathological report becomes available (typically within 7-14 days after surgery) HOW: Assessment by the pathologist based on standardized histopathological examination of the resection specimen according to institutional protocol. The pathologist is blinded to group assignment (ICG vs. control) and evaluates solely based on the pathological specimen whether the resection margins are tumor-free (R0) or whether microscopic tumor residue is present (R1/R2).

Secondary

MeasureTime frame
• Intraoperative change in strategy • Detection of additional lesions • Complications according to Clavien–Dindo (including major complications) • Liver surgery-specific complications • Conversion rate (minimally invasive ? open) • Duration of surgery • Blood loss and transfusion requirements • Length of hospital stay • Perioperative morbidity and mortality (30 and 90 days) • 12-month survival (overall survival and recurrence-free survival)

Countries

Germany

Contacts

Public ContactMirhasan Rahimli

Universitätsklinik für Allgemein-, Viszeral-, Gefäß- und Transplantationschirurgie

mirhasan.rahimli@med.ovgu.de+49391671522

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 14, 2026