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A Phase 3, Randomized, Double-blind, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of Amyloid Depleter ALXN2220 in Adult Participants with Transthyretin Amyloid Cardiomyopathy (ATTR-CM)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-506669-70-00
Acronym
ALXN2220-ATTRCM-301
Enrollment
346
Registered
2024-04-12
Start date
2024-04-30
Completion date
Unknown
Last updated
2025-11-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adults with Transthyretin Amyloid Cardiomyopathy (ATTR-CM).

Brief summary

Total occurrence of ACM and CV clinical events during the Blinded Treatment Period

Detailed description

Change from baseline in KCCQ-OS to 24 months, Time to CV related mortality, Change from baseline in 6MWT to 24 months, Rate of CV clinical events, Time to ACM, Incidence of TEAEs and treatment-emergent SAEs. Changes from baseline in physical examination, vital signs, clinical laboratory tests, and 12-lead ECGs, ADA incidence and NAb incidence, response categories and titer, Serum ALXN2220 concentration

Interventions

Sponsors

Alexion Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Total occurrence of ACM and CV clinical events during the Blinded Treatment Period

Secondary

MeasureTime frame
Change from baseline in KCCQ-OS to 24 months, Time to CV related mortality, Change from baseline in 6MWT to 24 months, Rate of CV clinical events, Time to ACM, Incidence of TEAEs and treatment-emergent SAEs. Changes from baseline in physical examination, vital signs, clinical laboratory tests, and 12-lead ECGs, ADA incidence and NAb incidence, response categories and titer, Serum ALXN2220 concentration

Countries

Austria, Belgium, Czechia, Denmark, France, Germany, Greece, Ireland, Italy, Netherlands, Norway, Poland, Spain, Sweden

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026