Last reviewed: October 5, 2026

Alector

AL003

TargetCD33
Modalitymonoclonal antibody
IndicationAlzheimer's disease
PhasePhase 1 (Discontinued)
PartnerAbbVie
Trial IDNCT03822208
Registry statusCOMPLETEDVerified 2026-10-05

Notes

AL003 was a monoclonal antibody directed against CD33, designed to block this inhibitory receptor and promote microglial phagocytosis of amyloid beta. The program was discontinued by AbbVie following Phase 1 evaluations.

Program entries are factual summaries of publicly disclosed clinical programs. Microglia.ai does not imply predictions about therapeutic outcomes or investment advice.

Last reviewed: October 5, 2026