Conditions: Healthy
Keywords: ALXN1210 Pharmacokinetic Pharmacodynamic Safety Immunogenicity
Allocation: RANDOMIZED | Intervention model: SEQUENTIAL
Enrollment: 14
Healthy volunteers: yes

Brief summary:
This study evaluated the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of a single dose of ALXN1210 in healthy participants, as assessed by electrocardiograms, physical examination, vital signs, laboratory analysis, and assessment of adverse events (AEs).

Detailed description:
The participants were randomized in a 2:1 ratio (4 active and 2 placebo) to receive a single dose of ALXN1210 or placebo in the 200-milligram (mg) dose cohort and in a 3:1 ratio (6 active and 2 placebo) to receive a single dose of ALXN1210 or placebo in the 400-mg dose cohort, administered by intravenous (IV) infusion. A 150-day observation period was performed for safety, pharmacokinetic, and pharmacodynamic assessments after study drug administration. Antidrug antibody (ADA) levels were monitored in study participants for the duration of the 150-day follow-up period.

Arms:
arm 1: ALXN1210 was administered intravenously. arm 2: ALXN1210 was administered intravenously. arm 3: Placebo was administered intravenously.

Interventions: intervention 1: ALXN1210 intervention 2: Placebo
Intervention descriptions: intervention 1: All doses of ALXN1210 were administered by IV infusion, using programmable IV infusion pump and IV sets with in-line filters, at a fixed rate of 686 mg/hour (equivalent to 137 milliliters \[mL\]/hour), excluding interruption for safety or technical reason. intervention 2: All doses of placebo were administered by IV infusion, using programmable IV infusion pump and IV sets with in-line filters, at a fixed rate of 686 mg/hour (equivalent to 137 mL/hour), excluding interruption for safety or technical reason.

Protocol document: