Efficacy and Safety of Intraparenchymal Portal Vein Covered Stents in Treating Portal Hypertension and Its Complications

NCT ID: NCT06320912

Last Updated: 2024-03-20

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

258 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-05

Study Completion Date

2026-11-01

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The objective of this study is to assess the non-inferiority of the intraparenchymal portal vein covered stent in terms of safety and efficacy for managing portal hypertension and its related complications, in comparison to the currently available TIPS Covered Stent System by GORE.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This study is a prospective, multicenter, randomized controlled, non-inferiority clinical trial. It plans to enroll approximately 258 qualified participants from about 25 research centers nationwide. Participants will be randomly assigned in a 1:1 ratio to either the experimental group or the control group for the treatment of portal hypertension and its related complications. The primary endpoint of the study is the patency rate of the stents 12 months after the initial surgery. All participants will undergo clinical follow-ups at 1 month, 6 months, and 1 year post-stent implantation.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Portal Hypertension

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Group(A)

Group Type EXPERIMENTAL

The intraparenchymal portal vein covered stent

Intervention Type DEVICE

The intraparenchymal portal vein covered stent, produced by Shanghai Shenqi Medical Technology Co., Ltd., is used for a transjugular approach. It establishes an artificial shunt between the hepatic vein and the main branches of the portal vein within the liver. This helps in reducing portal venous pressure and alleviating or improving the symptoms of portal hypertension and its complications, such as variceal bleeding, gastropathy, refractory ascites, and/or hepatic hydrothorax.

Group(B)

Group Type ACTIVE_COMPARATOR

TIPS Covered Stent System GORE

Intervention Type DEVICE

The GORE® VIATORR® Transjugular Intrahepatic Portosystemic Shunt (TIPS) Covered Stent consists of an implantable covered stent and a percutaneous delivery catheter.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

The intraparenchymal portal vein covered stent

The intraparenchymal portal vein covered stent, produced by Shanghai Shenqi Medical Technology Co., Ltd., is used for a transjugular approach. It establishes an artificial shunt between the hepatic vein and the main branches of the portal vein within the liver. This helps in reducing portal venous pressure and alleviating or improving the symptoms of portal hypertension and its complications, such as variceal bleeding, gastropathy, refractory ascites, and/or hepatic hydrothorax.

Intervention Type DEVICE

TIPS Covered Stent System GORE

The GORE® VIATORR® Transjugular Intrahepatic Portosystemic Shunt (TIPS) Covered Stent consists of an implantable covered stent and a percutaneous delivery catheter.

Intervention Type DEVICE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Age 18-75 years (inclusive); male or non-pregnant female.
* Diagnosed with cirrhosis and associated complications of portal hypertension (such as esophageal and gastric variceal bleeding, refractory ascites), and meeting the consensus recommendations for TIPS indications (see Appendix 5).
* Participants must understand the purpose of the trial, voluntarily participate, sign an informed consent form, and be willing to complete the follow-up according to the project requirements.

Exclusion Criteria

* Severe right heart failure, congestive heart failure (LVEF \< 40%), or severe valvular heart dysfunction.
* Uncontrolled systemic infection or inflammation.
* Persistent moderate to severe pulmonary hypertension after treatment (tricuspid regurgitant peak velocity \> 3.4 m/s or pulmonary artery systolic pressure \> 50 mmHg).
* Patients in hepatic encephalopathy coma or comatose phase (West Haven Criteria Stage III, IV).
* Severe liver dysfunction, Child-Pugh score \> 13, or MELD score \> 18.
* Serum creatinine (Scr) \> 178 umol/L or on dialysis.
* Stage IIIa or higher liver malignancy.
* Budd-Chiari syndrome, hepatic veno-occlusive disease, or obstructive cholestasis.
* Polycystic liver disease.
* Unrectifiable coagulopathy (INR \> 5 or PLT count \< 20 x 10\^9/L).
* Main portal vein thrombosis occupying \> 50% of the lumen area or cavernous transformation of the portal vein.
* Previous TIPS procedure or planned liver transplantation within a year.
* Allergy to contrast agents or nickel-titanium alloys.
* Life expectancy less than 1 year.
* Participation in other drug or medical device clinical trials within three months before screening.
* Other conditions deemed by the researcher as unsuitable for participation in this clinical trial.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Shanghai Shenqi Medical Technology Co., Ltd

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Southern Medical University Nanfang Hospital

Guangzhou, Guangdong, China

Site Status

Countries

Review the countries where the study has at least one active or historical site.

China

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

chaojun gu

Role: CONTACT

+86-13636491192

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Jianbo Zhao

Role: primary

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

TIPS01

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.