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ACI-24 low dose

Phase 1

Down Syndrome | Monoclonal antibody | Rare Disease |AC Immune SA|Last Updated: Oct 15, 2021

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment20

FDA Designations

FAST_TRACK

Clinical trial landscape

ACI-24 low dose · 1 trial · 1 indication

Phase 1 1
NCT02738450Safety, Tolerability and Immunogenicity of ACI-24 Vaccine in Adults With Down SyndromeDown Syndrome
COMPLETED20 Analytics
PHASE1COMPLETED
Safety, Tolerability and Immunogenicity of ACI-24 Vaccine in Adults With Down Syndrome
Down SyndromeUnlock trial analytics

Study Endpoints

Primary Endpoints

Antibody Titer (Serum Anti-Aβ1-42 Free IgG) - Mean Absolute Value
Values at baseline (week 0) and week 50 are reported

All subjects who received at least 1 dose of the study treatment of either ACI-24 300 μg, ACI-24 1000 μg or placebo are considered. The measure is expressed in Arbitrary Units per mL (AU/mL). AU/mL in a sample is obtained by back-calculation towards the standard curve.

Secondary Endpoints

Amyloid Beta 1-40 in Blood - Mean Absolute Value
Values at baseline (week 0) and week 50 are reported
CANTAB - MOT Latency Score
Values at baseline (week 0) and week 50 are reported
CANTAB - PAL First Attempt Memory Score
Values at baseline (week 0) and week 50 are reported
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ACI-24 low doseACTIVE_COMPARATORVaccine formulation will be administrated s.c. 7 times.
ACI-24 high doseACTIVE_COMPARATORVaccine formulation will be administrated s.c. 7 times.
PlaceboPLACEBO_COMPARATORThe placebo is ready-to-use solution for injection, administrated s.c. 7 times.

Interventions

NameTypeDescription
ACI-24 low doseBIOLOGICALACI-24 administered as a sterile suspension in PBS via s.c. injection.
ACI-24 high doseBIOLOGICALACI-24 administered as a sterile suspension in PBS via s.c. injection.
PlaceboBIOLOGICALPlacebo is a standard PBS sterile solution administrated via s.c. injection.
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Eligibility Criteria

Age Range25 Years to 45 Years
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: * Males or females with Down Syndrome aged ≥25 to ≤45 years, with a cytogenetic diagnosis being either Trisomy 21 or Complete Unbalanced Translocation of the Chromosome 21. * Subjects and their study partner/legal representative in the opinion of the investigator able to underst...

Countries:United States
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Frequently asked questions about ACI-24 low dose

What is ACI-24 low dose used for in Down Syndrome?

ACI-24 low dose is an investigational monoclonal antibody being studied for use in adults with Down Syndrome. It is being evaluated as a potential treatment for this rare disease. The drug is currently in clinical development and has not been approved by regulatory authorities.

Who makes ACI-24 low dose?

ACI-24 low dose is being developed by AC Immune SA, a biopharmaceutical company traded on the NASDAQ under the ticker symbol ACIU. The company is conducting clinical research to evaluate the safety and immunogenicity of this investigational therapy in adults with Down Syndrome.

What phase is ACI-24 low dose in?

ACI-24 low dose is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by the FDA or other regulatory agencies. The drug is being studied for its safety, tolerability, and immunogenicity in adults with Down Syndrome.

What clinical trials is ACI-24 low dose in?

ACI-24 low dose has been studied in one clinical trial, identified as NCT02738450. This Phase 1 trial, titled 'Safety, Tolerability and Immunogenicity of ACI-24 Vaccine in Adults With Down Syndrome,' has been completed. The study enrolled 20 participants in the United States, with a minimum age of 25 years.

Is ACI-24 low dose FDA approved?

ACI-24 low dose is not FDA approved. It is an investigational drug currently in Phase 1 clinical development. The FDA has granted it Fast Track designation, which is intended to facilitate development and expedite review of drugs that treat serious conditions and fill an unmet medical need.

Is ACI-24 low dose a vaccine?

ACI-24 low dose is described as a monoclonal antibody, though the completed clinical trial NCT02738450 refers to it as a vaccine. The study evaluated its safety, tolerability, and immunogenicity in adults with Down Syndrome. The drug is being developed by AC Immune SA for this rare disease indication.