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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT02929940
Other study ID # Alpha1-Liver
Secondary ID
Status Recruiting
Phase N/A
First received October 6, 2016
Last updated May 29, 2017
Start date April 2015
Est. completion date December 2020

Study information

Verified date May 2017
Source RWTH Aachen University
Contact Pavel Strnad, MD
Phone 0241-80-36606
Email alpha1-leber@ukaachen.de
Is FDA regulated No
Health authority
Study type Observational [Patient Registry]

Clinical Trial Summary

Alpha1-antitrypsin deficiency (AATD) is the third most common genetic disorder leading to death worldwide. Apart from lung disease, AATD also leads to liver involvement in up to 50% of patients. Hence, liver involvement is the second most common cause of morbidity and mortality in AATD patients. But the natural history of disease in adults is not well understood and specific therapies are still in the phase of preclinical studies. Despite these facts and the therapeutic and preventative potential, the AATD-related liver disease is still largely being neglected by both the patients and the healthcare professionals.

To improve the hepatologic care of patients with AATD, the investigators initiated a prospective multi-center study in Europe that systematically evaluates the liver function in these patients and their relatives. The investigators cooperate with both patient organizations as well as with lung centers specialized on AATD-related lung disease.


Description:

Alpha1-antitrypsin deficiency (AAT deficiency) is a frequently overlooked metabolic disorder. Apart from lung disease, AAT deficiency also leads to liver disease. This can affect people of all ages and all ethnic groups. Although involvement of the liver is the second most common cause of decreased quality of life and life expectancy in Alpha1 patients, no preventative care plan, like that one implemented to avoid lung involvement, has yet been drawn up.

Chronic liver involvement therefore often remains undetected until a very late stage in diagnosed cases of AAT deficiency. This is compounded by the fact that the patients affected generally have only unspecific symptoms if any at all. Moreover, routine diagnostic measurements (e.g. liver function tests) often reveal no abnormalities. In the case of a late diagnosis, the diverse complications of liver disease can no longer be effectively prevented.

Liver involvement in AAT deficiency can lead to liver cirrhosis or liver cancer. Liver cirrhosis is the life-threatening consequence of many liver disorders and carries a poor prognosis. Besides AAT deficiency, many other - potentially treatable - conditions, such as viral hepatitis, excessive alcohol consumption and diabetes, can cause liver damage. Liver cirrhosis itself leads to many, often life-threatening secondary disorders such as heavy bleeding or liver cancer. It is therefore crucial that liver disorders such as AAT deficiency are diagnosed at an early stage, so as to prevent complications and to treat concomitant risk factors.

The investigators collaborate with various patient support groups and other hospitals specialising in AAT deficiency-associated lung disease. Together with their collaborators, the investigators hope to improve the care of affected patients and help to bring about therapeutic advances.

The aim of this study is to clarify how liver function is modified in patients with AAT deficiency. For this, among other things, the investigators use:

(i) modern ultrasound-based scanners for non-invasive measurement of the degree of liver scarring.

(ii) Specialized liver parameters in blood samples, which also provide information on any existing liver disorders (iii) Questionnaire.

Study participants receive a full, cost-free analysis of their individual liver involvement and are given appropriate recommendations for disease prevention. The examinations provide a relief to many and to everybody,the investigators are able to offer an individual liver damage prevention plan.

All adult patients (of every genotype) as well as any family members interested will be studied and advised. Besides the specialist clinic in Aachen (Germany), free examinations throughout and even outside of Germany will be offered.


Recruitment information / eligibility

Status Recruiting
Enrollment 500
Est. completion date December 2020
Est. primary completion date April 2020
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 99 Years
Eligibility Inclusion Criteria:

- All patients with known AATD (every genotype)

- Relatives of patients with known AATD

Exclusion Criteria:

- Children

- Pregnant women

- Patients who cannot give informed consent

Study Design


Intervention

Other:
No intervention
No Intervention, observational

Locations

Country Name City State
Germany RWTH Aachen University Aachen North Rhine Westphalia

Sponsors (1)

Lead Sponsor Collaborator
RWTH Aachen University

Country where clinical trial is conducted

Germany, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number of participants with Liver fibrosis, Hepatic decompensation, Liver cancer, Death or Liver transplantation 5 years
See also
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Recruiting NCT04722887 - A Study to Evaluate Safety, Tolerability and Pharmacokinetics of Two Different Doses of Alpha1-Proteinase Inhibitor Subcutaneous (Human) 15% in Participants With Alpha1-Antitrypsin Deficiency Phase 1/Phase 2