Alpha-1 Antitrypsin Deficiency: Symptoms, Treatment, and When to Get Tested

patient-education
Written By Vital Care Jacksonville

Alpha-1 Antitrypsin Deficiency (AATD) is a genetic condition that can cause serious lung and liver disease if left undiagnosed. Because symptoms often resemble asthma, COPD, or unexplained liver disease, Alpha-1 is frequently missed or diagnosed late.

This guide explains:

  • What Alpha-1 Antitrypsin Deficiency is

  • Common symptoms and complications

  • Available treatments and medications

  • How Alpha-1 is diagnosed

  • A screening checklist to help determine who should be tested

What Is Alpha-1 Antitrypsin Deficiency?

Alpha-1 Antitrypsin Deficiency is an inherited disorder that affects how the body produces alpha-1 antitrypsin (AAT), a protein made in the liver.

AAT’s role is to:

  • Protect the lungs from inflammation and tissue damage

  • Help maintain normal lung function

In people with Alpha-1:

  • AAT levels are too low, or

  • The protein is misfolded and becomes trapped in the liver

This can result in genetic lung disease, liver disease, or both.

Alpha-1 Antitrypsin Deficiency Symptoms

Lung Symptoms (Often Misdiagnosed as COPD or Asthma)

Alpha-1 deficiency symptoms affecting the lungs may include:

  • Shortness of breath with activity

  • Chronic cough or wheezing

  • Frequent respiratory infections

  • Early-onset emphysema (before age 40)

  • COPD in non-smokers or light smokers

Alpha-1 is a leading genetic cause of early emphysema and COPD.

Liver Symptoms

Liver involvement occurs when abnormal AAT protein builds up in liver cells, causing:

  • Elevated liver enzymes

  • Fatigue or weakness

  • Jaundice (yellowing of skin or eyes)

  • Abdominal swelling

  • Cirrhosis or liver failure in severe cases

Alpha-1 can cause liver disease in infants, children, and adults.

How Is Alpha-1 Antitrypsin Deficiency Diagnosed?

Alpha-1 diagnosis is simple and begins with testing.

Diagnostic Tests Include:

  • Blood test to measure alpha-1 antitrypsin levels

  • Genetic testing to identify Alpha-1 gene variants (MM, MZ, SZ, ZZ)

  • Lung function tests or CT scans (if lung symptoms are present)

  • Liver blood tests or imaging (if liver involvement is suspected)

Because Alpha-1 is genetic, family members should also consider testing.

Alpha-1 Antitrypsin Deficiency Treatment Options

There is no cure, but early diagnosis allows treatment that can slow disease progression and protect organ function.

1. Augmentation Therapy (Alpha-1 Protein Replacement)

Augmentation therapy is the only disease-specific treatment for Alpha-1 lung disease.

How it works:

  • Replaces missing alpha-1 antitrypsin protein

  • Helps protect lung tissue from further damage

How it’s given:

Weekly intravenous (IV) infusion

FDA-approved Alpha-1 medications include:

Augmentation therapy is used in adults with Alpha-1-related lung disease and is not indicated for liver-only disease.

2. Inhaled Medications

To manage breathing symptoms:

  • Bronchodilators (albuterol, tiotropium)

  • Inhaled corticosteroids (budesonide, fluticasone)

These help reduce symptoms and prevent flare-ups.

3. Antibiotics

· Used for lung infections

· Early treatment helps preserve lung function

4. Liver Management

  • There is no medication to remove abnormal AAT from the liver. Care focuses on:

  • Avoiding alcohol

  • Regular liver monitoring

  • Managing complications

  • Liver transplantation in advanced cases (which can cure liver involvement)

Living Well With Alpha-1 Deficiency

With early diagnosis and proper treatment, many people with Alpha-1 live full, active lives.

Key steps include:

  • Never smoking and avoiding secondhand smoke

  • Staying up to date on flu and pneumonia vaccines

  • Regular exercise as tolerated

  • Ongoing lung and liver monitoring

  • Family testing and genetic counseling

Frequently Asked Questions

  • Yes. Alpha-1 is inherited from parents and passed down through families.

  • Anyone with COPD, early emphysema, unexplained liver disease, or a family history of Alpha-1 should be tested.

  • There is no cure, but treatments can slow lung damage and manage symptoms effectively.

Take the Next Step

If you or a loved one may be at risk for Alpha-1 Antitrypsin Deficiency, early awareness and testing can make a meaningful difference. Understanding your risk allows you to take proactive steps to protect your lung and liver health and explore appropriate treatment options.

To learn more about Alpha-1, available therapies, or infusion services, we invite you to sign up for more information or contact our team.

Vital Care Infusion Services of Jacksonville is committed to supporting patients with chronic and rare conditions through personalized, high-quality infusion care. We proudly serve patients across Florida and Georgia, working closely with healthcare providers to ensure safe, convenient, and compassionate treatment.

Contact our team today to speak with a care specialist

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Your health matters. We’re here to support you every step of the way.

Vital Care Jacksonville