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Liver CirrhosisPhase 2/3NCT01456286

Randomized Controlled Trial to Assess the Effects of Sapropterin on Hepatic and Systemic Hemodynamics in Patients With Liver Cirrhosis and Portal Hypertension

A Phase 2/3 study testing sapropterin in people with Liver Cirrhosis and Portal Hypertension, run by Fundacion Clinic per a la Recerca Biomédica at 2 sites in Spain.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine whether sapropterin (an oral analogue of tetrahydrobiopterin) could have a role in the treatment of portal hypertension secondary to liver cirrhosis. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Liver Cirrhosis, Portal Hypertension
What is being tested?
sapropterin
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
42 participants
Where
2 sitesSpain
Study dates
Oct 2011to Oct 2013
Phase
Phase 2/3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Liver cirrhosis of any etiology diagnosed by biopsy or by clinical-imaging data
  • Male or female patients between 18-75 years old in whom hepatic vein catheterization is indicated.
  • Clinically significant portal hypertension defined by a HVPG ≥ 10 mmHg.
  • Signed informed consent.

Who cannot join

  • End-stage liver failure defined by one of the following: Prothrombin activity < 40% and/or Bilirubin > 5 mg/dl.
  • Pregnancy or breastfeeding.
  • Concomitant beginning of non-selective beta-blockers (propranolol, nadolol) during the administration of sapropterin. Beta-blockers are not exclusion criteria if they are on stable doses in the previous 6 weeks.
  • Treatment with carvedilol or nitrates.
  • Previous TIPS or derivative shunt.
  • Hepatocellular carcinoma exceeding Milan criteria.
Show all 11Show fewer
  • Spontaneous bacterial peritonitis or any active infection when entering in the study.
  • Portal vein thrombosis or cavernomatosis at ultrasound.
  • Chronic heart failure, respiratory failure or chronic renal failure (Creatinine >2 mg/dl).
  • Previous convulsions or epilepsy.
  • Hypersensibility to sapropterin or any of its excipients.

Trial locations and contacts

2 sites in 1 country.

Spain2 sites
  • Hospital Clínic de Barcelona

    Barcelona, Barcelona, 08036

  • Hospital Ramón y Cajal

    Madrid, Madrid Community, 28034

Other trials in Spain

About this study

Official title: Randomized Trial, Masked, and Placebo Controlled to Assess the Effects of Sapropterin on Hepatic and Systemic Hemodynamics in Patients With Liver Cirrhosis and Portal Hypertension

The purpose of this study is to determine whether sapropterin (an oral analogue of tetrahydrobiopterin) could have a role in the treatment of portal hypertension secondary to liver cirrhosis. Sapropterin or placebo will be given for two weeks in patients with liver cirrhosis and clinically significant portal hypertension. Systemic and hepatic hemodynamics studies will be performed at baseline and after the intervention to assess the effect of sapropterin.

Read the detailed description

Portal hypertension and its complications (variceal bleeding, encephalopathy, spontaneous bacterial peritonitis, hepatorenal syndrome) are the main cause of death and liver transplantation in patients with cirrhosis. Diminishing portal hypertension by drugs (beta-blockers) is associated with a protection in the development of complications from portal hypertension. For this reason it is important to investigate and develop drugs that can reduce the portal pressure in liver cirrhosis. Tetrahydrobiopterin has been shown to decrease portal pressure in animal models of cirrhosis by improving intrahepatic resistance and by increasing nitric oxide bioavailability (eNOS co-factor). These effects were not associated to deleterious effects on systemic hemodynamics.

This study aims to test if sapropterin (an oral analogue of tetrahydrobiopterin) can play a role in the management of portal hypertension. For this, patients with liver cirrhosis and clinically significant portal hypertension will be randomized to receive sapropterin or placebo for two weeks. Patients will undergo an hepatic vein catheterization to asses the hepatic venous pressure gradient (HVPG), and those having and HVPG of 10 mmHg or higher will be randomized to receive sapropterin or placebo. Swan-Ganz catheterization, systemic measurements, and hepatic blood flow by indocyanine green method will also be performed. Patients will receive sapropterin or placebo for two weeks at a dosage of 5 mg/kg/d in the first week, increasing to 10 mg/kg/d in the second week if there are no adverse events or intolerance. A second systemic and hepatic hemodynamic study will be performed after 2 weeks of treatment to assess changes.

Changes in laboratory tests, liver function (Child-Pugh and MELD scores), endothelial dysfunction and oxidative stress markers (Von Willebrand Factor, Malondialdehyde) will be monitored during the study. As sapropterin has been never evaluated in cirrhotic patients, tolerance and adverse effects related to the medication will be registered.

The study will be stratified according to previous beta-blocker therapy (receiving or not receiving beta-blockers).

Being tested
sapropterin
Medical subject headings
Liver Cirrhosis, Hypertension, Portal

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • sapropterinDrug

    two weeks of treatment: 5 mg/kg per day during first week 10 mg/kg per day during second week

Study groups in NCT01456286
Study groupRoleWhat they receive
SapropterinExperimental5 mg/kg daily first week; 10 mg/kg daily second week of treatment
Receives: Drug: sapropterin
placeboPlacebo comparatorNot described
Receives: Drug: sapropterin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in Hepatic Venous Pressure Gradient

    Changes in portal pressure gradient as measured by hepatic vein catheterization, induced by 2 week treatment with sapropterin/placebo

    Measured: 2 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Oct 2011 (estimated)
  2. Study startOct 2011
  3. Primary completionOct 2013
  4. Study completionOct 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01456286
Sponsor's protocol ID
TEHYLIC
Status last verified
Oct 2013
First submitted
17 Oct 2011
Last updated
7 Oct 2013
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing sapropterin in people with Liver Cirrhosis and Portal Hypertension, run by Fundacion Clinic per a la Recerca Biomédica at 2 sites in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Oct 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in Hepatic Venous Pressure Gradient (time frame: 2 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Oct 2013.

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