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CompletedNCT02799212SOMAPROTECT01Updated Oct 3, 2025

Evaluation of Postoperative Ascites After Somatostatin Infusion Following Hepatectomy for Hepatocellular Carcinoma

A Phase 3 interventional study of somatostatin infusion and placebo infusion in Hepatocellular Carcinoma, sponsored by Hospices Civils de Lyon. Completed at 7 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-10-03.

Sponsored by Hospices Civils de Lyon · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
179
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Most patients undergoing hepatectomy for hepatocellular carcinoma (HCC) suffer from underlying liver disease and are exposed to the risk of postoperative ascites, with subsequent morbidity, liver and renal failure, the need for specific treatments and prolonged hospital stay. Postoperative ascites is favored by an imbalance between portal venous inflow and the diminished hepatic venous outflow. Finding a reversible, non-invasive method for modulating the portal inflow would be of interest: it could be used temporarily during the early postoperative course to prevent acute portal hypertension. Somatostatin, a well-known drug already used in several indications, may limit the risk of postoperative ascites and liver failure by decreasing portal pressure after hepatectomy for HCC in patients with underlying liver disease.

02

Conditions studied

  • Hepatocellular Carcinoma

Keywords

  • Hepatocellular carcinoma
  • Hepatectomy
  • Ascites
  • Somatostatin
03

In context

Carcinoma, Hepatocellular

3,180 studies on the registry are indexed under Carcinoma, Hepatocellular; 953 are open to participants now.

This study's enrollment of 179 is above the median of 55 across 2,298 interventional studies indexed under Carcinoma, Hepatocellular.

Browse Carcinoma, Hepatocellular studies →

Lead sponsor

Hospices Civils de Lyon is the lead sponsor of 1,826 studies on the registry; 439 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients with HCC diagnosed by histology or by imaging findings according to the Barcelona Clinic Liver Cancer Group
  • Patients with a single or multiple HCCs deemed to be resectable with a curative intent at the preoperative evaluation
  • Patients for whom an indication for hepatectomy has been decided and approved by multidisciplinary board:
  • by laparotomy
  • by coelioscopy with resection of at least 2 liver segments
  • Patients with any underlying liver disease with or without proven cirrhosis, regarding histological features (including F2-F3-F4 fibrosis with or without cirrhosis) or with other evidence of a diseased liver if no biopsy has been performed preoperatively (dysmorphic liver or evidence of portal hypertension at imaging findings, oesophageal varices at endoscopy)
  • Age ≥ 18 years
  • Patients with ability to understand and sign a written inform consent form
  • Patients who will be available for follow-up

Exclusion criteria

Exclusion Criteria:

  • Patients participating in another interventional research in progress or including an exclusion period still in progress at pre-inclusion (except interventional research with minimal risks and constraints that do not interfere with the judgement criteria of the study according to the judgement of the coordinating investigator).
  • Patients with evidence of a healthy liver at biopsy

Disease-associated non-inclusion criteria include:

  • Another histologic type of hepatic tumor besides HCC
  • Distant extra-hepatic metastases, including peritoneal carcinomatosis
  • The existence of complete portal thrombosis of the main portal trunk

Operative technique-associated non-inclusion criteria include:

- Indication of coelioscopy with resection of less than 2 liver segments

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
179 participants (actual)

Study arms

  • Experimental
    Experimental group

    postoperative somatostatin infusion during 5 days at 6mg/day, followed by one day at 3mg/day

    Drug: somatostatin infusion

  • Placebo comparator
    Control group

    Placebo infusion (50ml of 0.9% NaCl/day) during 6 days

    Drug: placebo infusion

Interventions

  • Drugsomatostatin infusion

    postoperative somatostatin infusion during 5 days at 6mg/day, followed by one day at 3mg/day.

  • Drugplacebo infusion

    Placebo infusion (50ml of 0.9% NaCl/day) during 6 days.

06

What researchers measure

Primary outcomes

  1. presence of postoperative ascites during the postoperative course

    The presence of postoperative ascites during the postoperative course defined by: * ≥500 ml / 24h of fluid in the drains during at least 3 days. Or * ascites requiring puncture or drainage

    Time frame: Day 90

Secondary outcomes

  1. Duration of ascites

    Number of days with ≥ 500ml / 24h of ascites

    Time frame: Day 90

  2. Volume of ascites

    Total ascites volume

    Time frame: Day 90

  3. postoperative morbidity

    Postoperative morbidity according to Dindo-Clavien

    Time frame: Day 90

  4. Postoperative morbidity on Liver failure

    Presence and severity of hepatic failure according to International Study Group of Liver Surgery (ISGLS)

    Time frame: Day 90

  5. Postoperative morbidity on Renal failure

    Presence and severity of renal failure according to RIFLE scale (RIFLE: Risk, Injury, Failure, Loss of kidney function, and End-stage kidney disease)

    Time frame: Day 90

07

Study locations

7 sites
  • APHP - Hôpital Beaujon
    Clichy, France
  • CHRU Lille - Hopital Huriez
    Lille, France
  • Hospices Civils de Lyon - Hôpital de la Croix Rousse
    Lyon, 69004, France
  • APHM - Hôpital de la Timone
    Marseille, France
  • CHU de Bordeaux - Hôpital Haut Lévèque
    Pessac, France
  • CHU Rennes - Hôpital Pontchaillou
    Rennes, France
  • CHU de Toulouse - Hopital Rangueil
    Toulouse, France
08

References and documents

Publications

  • Mohkam K, Rayar M, Adam JP, Muscari F, Rode A, Merle P, Pradat P, Bauler S, Delfour I, Chiche L, Ducerf C, Boudjema K, Lesurtel M, Laurent C, Mabrut JY. Evaluation of postoperative ascites after somatostatin infusion following hepatectomy for hepatocellular carcinoma by laparotomy: a multicenter randomized double-blind controlled trial (SOMAPROTECT). BMC Cancer. 2018 Aug 23;18(1):844. doi: 10.1186/s12885-018-4667-0. PubMed 30139340 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 3, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02799212
Lead sponsor
Hospices Civils de Lyon
Responsible party
Sponsor
First posted
Jun 14, 2016
Start date
Jan 10, 2018
Primary completion
Apr 30, 2024
Completion
Apr 30, 2024
Last update
Oct 3, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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