What is Alpha-1 Antitrypsin Deficiency?

Alpha-1 Antitrypsin Deficiency also known as Alpha-1, A1AD or AATD is an inherited, genetic condition that is passed on from generation to generation. As the name suggests it is a deficiency of alpha-1 antitrypsin (AAT) in the bloodstream. AAT is an enzyme produced in the liver to help protect the tissues of the body during infections. The low level of AAT in the blood occurs because the AAT is abnormal and cannot be released from the liver at the normal rate. This leads to a build up of abnormal AAT in the liver that can cause liver disease and a decrease of AAT in the blood that can lead to lung disease.

Annual Social Gathering & Information Day 2023

We are excited and delighted to announce that our annual event is returning this year as a face to face event. Further information is available here Daventry 2023


  • Coronavirus (COVID-19) 11th August 2022
    It seems like a very long time since the alpha-1 community was facing the uncertain prospect of the COVID-19 pandemic with the concern that patients with alpha-1 antitrypsin deficiency were at a potentially higher risk than the general population.  Some of you may remember the ‘briefings’ that I wrote in April 2020 and the subsequent … Read more
  • What is happening with clinical trials in the UK as we slowly emerge from COVID-19, and how can you continue to support clinical research into new treatment options?
    The last year has seen intense focus on the development of treatments and vaccines for COVID-19, along with respiratory clinicians continuing to be on the frontline of treating patients with COVID.  Consequently, research into Alpha-1 and many other diseases has largely been on hold.  As significant progress has been made in the UK and globally … Read more
  • European Pathways of Care in AATD Study
    Patients : Please share this study with your clinicians and encourage them to participate. Identifying the different pathways of care through which patients with AATD are diagnosed and managed within the different healthcare systems across Europe is a challenge but at the same time would provide information invaluable both for AATD experts and patients In … Read more
  • Annual Meeting Update 2020
    Annual Social Gathering & Information Day 2020   As many of our veteran members will know we have held our annual event in September every year for over 20 years (yes, we’ve really been supporting alpha’s and their families for that long) and this year is no exception. However, despite historically hosting their annual meeting … Read more
  • Coronavirus (COVID-19) 27th April 2020
    Alpha-1 coronavirus (COVID-19) update as of the 27th April 2020: Further to the previous guidance relating to the risks of COVID-19 that was posted on the 8th April, there is little new that I have to report on the potential repercussions of infection with COVID-19 in patients with alpha-1 antitrypsin deficiency (AATD). Whilst there have … Read more