A Non-inferiority Pharmacokinetic and Safety/Tolerability Study of Two Different Doses of Weekly SC Alpha1-PI 15% Compared With Corresponding Standard IV Alpha1-PI in Participants With Alpha1-Antitrypsin Deficiency (AATD)
An Open-Label, Multicenter, Randomized, Non-Inferiority Pharmacokinetic and Safety/Tolerability Study of Two Different Weekly Doses of Alpha1-Proteinase Inhibitor Subcutaneous (Human) 15% in Patients With Alpha1-Antitrypsin Deficiency Compared to Corresponding Standard 60 mg/kg/Week and 120 mg/kg/Week Doses of Intravenous Alpha1-Proteinase Inhibitor (5%)
Grifols Therapeutics LLC
40 participants
May 5, 2026
INTERVENTIONAL
Conditions
Summary
This study is designed to compare two different weekly doses of a medicine called Alpha1-Proteinase Inhibitor given by injection under the skin with the standard doses of the same medicine given through a vein. Adults with Alpha-1 Antitrypsin Deficiency will take part. Participants will be randomly assigned to one of the treatment groups, and both the study doctors and participants will know which treatment is being given. The main goals of the study are to understand how the body processes the medicine (pharmacokinetics) and to assess how safe and well tolerated the different weekly doses are.
Eligibility
Plain Language Summary
Simplified for easier understanding
This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.
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Interventions
Alpha1-Proteinase Inhibitor Subcutaneous (Human), 15%
Liquid Alpha1-Proteinase Inhibitor (Human) for Intravenous infusion
Locations(22)
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NCT07555483