National Lysosomal Acid Lipase Deficiency Study (LAL-D)

November 9, 2017 updated by: Zarife Kuloglu, Ankara University

The Frequency of Cholesteryl Ester Storage Disease in Children With Unexplained Transaminase Elevation and Chronic Liver Disease

Cholesteryl Ester Storage Disease (CESD) is an autosomal recessive lysosomal storage disorder (LSD) caused by mutations in the lysosomal acid lipase gene (LIPA) that markedly reduce lysosomal acid lipase (LAL) activity, leading to the accumulation of lipids, predominately cholesteryl esters and triglycerides, in various tissues and cell types. In the liver, accumulation of lipids leads to diffuse microvesicular steatosis, which progresses to fibrosis and ultimately, to micronodular cirrhosis. Patients typically present with hepatomegaly, liver dysfunction, hepatic failure and type II hyperlipidemia. Although hepatosteatosis is a typical finding, the liver biopsy diagnosis may be misclassified as non-alcoholic fatty liver disease, non-alcoholic steatohepatitis or cryptogenic liver disease. Biopsy and radiological findings are not considered diagnostic, but help to suspicion of CESD. The definitive diagnosis is based on deficient LAL activity and/or LIPA gene mutations.

CESD is pan-ethnic, however, the disease incidence is unknown. The estimated incidence of the disease indicates that CESD should be largely underdiagnosed especially in European patients. Elevation of serum transaminases, and hepatomegaly are early indications of liver impairment. Therefore, CESD should be considered as a differential diagnosis in liver disease of unknown origin.

To data, there is no study which evaluated the frequency of CESD in children with unexplained transaminase elevation and/or organomegaly and/or chronic liver disease. The aim of this prospective, multicenter and cross-sectional study is to investigate frequency of CESD in children with unexplained transaminase elevation and/or and/or chronic liver disease and to identify demographic and clinical features of CESD.

Study Overview

Status

Completed

Conditions

Detailed Description

Patients of 3 months to 18 years of age at the time of enrolment who have unexplained transaminase elevation (serum alanine aminotransferase (ALT) levels > 1.5 times the upper limit of normal) for more than 3 months and/or unexplained hepatomegaly or hepatosplenomegaly and/or obesity- unrelated hepatosteatosis and/or biopsy-proven cryptogenic fibrosis and cirrhosis and/or liver transplantation for cryptogenic cirrhosis will be included.

Potential participants will be invited for LAL enzyme analysis. Written informed consent will be obtained from the parents or guardians of the participants at the time of enrolment. Prospective and retrospective data will be collected. Complete family and medical history, physical examination and previously existing laboratory findings will be recorded on standard case reports form and up to 0.25 ml of blood will be drawn for LAL enzyme analysis. The blood obtained from participants will be spotted on filter paper, and dried blood spot sample (DBS) will be prepared. Finally, the dried blood spot sample will be sent to reference laboratory (NHS Greater Glasgow and Clyde, England) for LAL enzyme measurement within 1 week.

Study Type

Observational

Enrollment (Actual)

810

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey
      • Ankara, Turkey
        • Ankara University School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

1 year to 16 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients of 3 months to 18 years of age at the time of enrolment who have unexplained transaminase elevation (serum ALT levels > 1.5 times the upper limit of normal) for more than 3 months and/or unexplained hepatomegaly or hepatosplenomegaly and/or obesity- unrelated hepatosteatosis and/or biopsy-proven cryptogenic fibrosis and cirrhosis and/or liver transplantation for cryptogenic cirrhosis

Description

Inclusion Criteria:

  1. A male or female of 3 months to 18 years of age at the time of enrolment
  2. Patients who have unexplained transaminase elevation (serum ALT levels > 1.5 times the upper limit of normal) for more than 3 months
  3. Patients who have unexplained hepatomegaly or hepatosplenomegaly
  4. Patients who have obesity- unrelated hepatosteatosis
  5. Patients who have biopsy-proven cryptogenic fibrosis and cirrhosis
  6. Patients with liver transplantation for cryptogenic cirrhosis

Exclusion Criteria:

  1. A male or female < 3 months or > 18 years old
  2. Patients with obesity -related hepatosteatosis
  3. Patients with drug-induced hepatosteatosis ( such as aspirin, methotrexate, amiodarone, glucocorticoid, tamoxifen, 5-fluorouracil, valproate, nucleoid revers transcriptase inhibitors)
  4. Patients with organomegaly or transaminase elevation due to infectious causes (EBV, Brucella, cytomegalovirus, salmonella, malaria, leishmania etc), hæmato-oncological disease (hemolytic anemia, leukemia,lymphoma, malign or benign liver neoplasms), connective tissue disorders (SLE, RA), cardiac and vascular causes (heart failure, pericarditis, Budd-Chiari syndrome, portal vein thrombosis) and obesity.
  5. Patient with definitive diagnosed chronic liver disease such as chronic viral hepatitis (B, C hepatitis), autoimmune hepatitis, alpha-1 antitrypsin deficiency, Wilson disease, metabolic disorders.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Frequency of Cholesteryl Ester Storage Disease in children who have unexplained transaminase elevation for more than 3 months and/or organomegaly and/or hepatosteatosis unrelated to obesity and/or cryptogenic fibrosis and cirrhosis
Time Frame: First day
First day

Secondary Outcome Measures

Outcome Measure
Time Frame
Identify demographic and clinical features of Cholesteryl Ester Storage Disease
Time Frame: First day
First day

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Ankara University

Collaborators

Alexion Pharmaceuticals

Investigators

  • Study Director: Zarife Kuloglu, M.D, Ankara University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2015

Primary Completion (Actual)

January 31, 2017

Study Completion (Actual)

March 1, 2017

Study Registration Dates

First Submitted

February 21, 2015

First Submitted That Met QC Criteria

February 21, 2015

First Posted (Estimate)

February 26, 2015

Study Record Updates

Last Update Posted (Actual)

November 13, 2017

Last Update Submitted That Met QC Criteria

November 9, 2017

Last Verified

November 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • LALD-TR

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Cholesteryl Ester Storage Disease

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Romania

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe