Study of ALXN2220 Versus Placebo in Adults With ATTR-CM

Purpose

The primary objective of this study is to access the efficacy of ALXN2220 in the treatment of adult participants with ATTR-CM by evaluating the difference between the ALXN2220 and placebo groups as assessed by the total occurrences of ACM and CV clinical events.

Condition

  • Transthyretin Amyloid Cardiomyopathy

Eligibility

Eligible Ages
Between 18 Years and 90 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Centrally confirmed diagnosis of ATTR-CM with either wild-type or variant TTR genotype - End-diastolic interventricular septal wall thickness ≥ 11 mm for women or ≥ 12 mm for men on echocardiography measured at Screening - NT-proBNP > 2000 pg/mL at Screening - Treatment with a loop diuretic for at least 30 days prior to Screening - History of heart failure NYHA Class II-IV at Screening - Life expectancy of ≥ 6 months as per the Investigator's judgment - Males and females of childbearing ability must use contraception

Exclusion Criteria

  • Known leptomeningeal amyloidosis - Known light chain (AL) or secondary amyloidosis (AA), or any other form of systemic amyloidosis - Acute coronary syndrome, unstable angina, stroke, transient ischemic attack, coronary revascularization, cardiac device implantation, cardiac valve repair, or major surgery within 3 months of Screening - Uncontrolled clinically significant cardiac arrhythmia, per Investigator's assessment - LVEF < 30% on echocardiography - Renal failure requiring dialysis or an eGFR < 20 mL/min/1.73 m2 at Screening - Polyneuropathy with PND score IV

Study Design

Phase
Phase 3
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
ALXN2220
Participants will receive weight-based dose of ALXN2220 via intravenous (IV) infusion every 4 weeks (q4w) for at least 24 months up to a maximum of 48 months.
  • Drug: ALXN2220
    Participants will receive ALXN2220 via IV infusion.
Placebo Comparator
Placebo
Participants will receive placebo via IV infusion q4w for at least 24 months up to a maximum of 48 months.
  • Drug: Placebo
    Participants will receive placebo via IV infusion.

Recruiting Locations

Research Site
Nashville, Tennessee 37232

More Details

Status
Recruiting
Sponsor
Alexion Pharmaceuticals, Inc.

Study Contact

Alexion Pharmaceuticals, Inc. (Sponsor)
1-855-752-2356
clinicaltrials@alexion.com