An interventional study of Portal Vein Embolization and Hepatic Vein Embolization in Primary Liver Cancer, Hepatocellular Carcinoma (HCC) and Cholangiocarcinoma, sponsored by Maastricht University. Recruiting at 55 sites in 12 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-05-15.
Sponsored by Maastricht University · Not applicable, Interventional, and Treatment
The goal of the DRAGON PLC clinical trial is to determine whether portal vein embolization (PVE) combined with hepatic vein embolization (HVE) improves resectability and overall survival in patients with initially unresectable primary liver cancer compared to standard PVE alone. This trial specifically focuses on patients with hepatocellular carcinoma and cholangiocarcinoma.
The main questions this trial aims to answer are whether combined PVE and HVE increases the proportion of patients who become resectable within 3 weeks and improves 5-year overall survival compared to PVE alone by enhancing liver hypertrophy.
Participants will:
Primary liver cancer (PLC) is the third most common cause of cancer death worldwide. Surgical resection is the mainstay for a curative approach as contemporary chemotherapy and immune-based therapies only lead to a median survival of 10-14 months. A complete surgical resection increases the median survival to 42 months (range 32-52 months). However, PLC is mainly diagnosed at an advanced stage and >70% of PLC patients are ineligible for an immediate surgical approach. There are different reasons that make a patient ineligible for surgery, one important reason is the risk of liver failure after the surgery due to a small remnant liver.
This study aims to improve the oncological, radiological and surgical strategy to allow more patients to undergo liver resection safely, to improve quality of life and to extend overall survival at acceptable costs.
Adequate function of the future liver remnant (FLR) is a prerequisite for surgical resectability. This is necessary in order to avoid liver failure after surgery, a major cause of morbidity (38%) and mortality (27%). To mitigate this risk, regenerative strategies based on preoperative calculation of the FLR volume and function are essential. Patients with technically resectable disease but predicted insufficient FLR volume or function are referred to as primarily unresectable or potentially resectable (PU/PR). These patients can undergo strategies that capitalize on the regenerative capacity of the liver which aim to preoperatively increase the FLR volume and function in order to allow surgery. Many of the patients that are primarily unresectable due to an insufficient FLR can become ultimately and safely resectable after the induction of adequate FLR-hypertrophy by the current standard, portal vein embolisation (PVE). However, 25% of patients do not show sufficient FLR growth after PVE and are unable to safely undergo resection. A new approach has been developed to improve this. Combined portal and hepatic vein embolisation (PVE/HVE) has great promise in terms of increasing FLR growth, resection rate (RR), safety and potentially, overall survival. Establishing PVE/HVE as the new standard could result in increased survival and a better quality of life (QoL) for patients.
3,648 studies on the registry are indexed under Carcinoma, Hepatocellular; 1,061 are open to participants now.
This study's planned enrollment of 358 is above the median of 54 across 2,618 interventional studies indexed under Carcinoma, Hepatocellular.
Browse Carcinoma, Hepatocellular studies →Maastricht University is the lead sponsor of 97 studies on the registry; 20 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Child-Pugh class
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Portal Vein Embolization (PVE) alone
Procedure: Portal Vein Embolization
Combined Portal and Hepatic Vein Embolization (PVE/HVE)
Procedure: Portal Vein Embolization · Procedure: Hepatic Vein Embolization
Description: Portal Vein embolization with Glue by a transhepatic approach
Hepatic Vein Embolization with Vascular plugs via a transjugular or transfemoral approach in the same session as the PVE procedure
Resectability 3 weeks after embolisation
The FLR is considered sufficient for resection 3 weeks after embolisation. Definition resectable: Patients are deemed resectable if the FLR is ≥30% in normally functioning livers, ≥40% in livers with potentially impaired function (e.g. resulting from prior systemic therapy or bile duct colonization / transpapillary biliary drainage), or ≥50% in livers with severely impaired function resulting from liver cirrhosis (max. Child Pugh A5) OR for any FLR volume, function on hepatobiliary scintigraphy is \> 2.7 %/min/m2
Time frame: 3 weeks
Overall survival
survival data will be recorded up to 5-years
Time frame: 5 years
Plan to share: Yes — Upon reasonable request
Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report, Analytic code
Time frame: After publication
Access criteria: Proposal accepted by the DRAGON Collaborative Scientific Committee
Started Apr 2025 (actual). Primary completion is estimated for Nov 2032, 91 months after the start.
Of 360 non-industry interventional studies with no phase under Carcinoma, Hepatocellular, half reached primary completion within 48 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 76. This study's planned 91 months is above that.
Counting every sponsor, half of 384 studies reached it within 47 months; a quarter within 23 and three quarters within 75.
How these figures are worked out, and which studies are left out of them.
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