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ALN-4285

Phase 1

Healthy Volunteers | Small molecule | Other |Alnylam Pharmaceuticals, Inc.|Last Updated: Aug 12, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment76

FDA Designations

No designations recorded

Clinical trial landscape

ALN-4285 · 1 trial · 1 indication

Phase 1 1
NCT07295717A Study to Evaluate ALN-4285 in Adult Healthy VolunteersHealthy Volunteers
RECRUITING76 Analytics
PHASE1RECRUITING
A Study to Evaluate ALN-4285 in Adult Healthy Volunteers
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Study Endpoints

Primary Endpoints

Frequency of Adverse Events (AEs)
Up to Week 24

Secondary Endpoints

Concentration of ALN-4285 in Plasma
Up to Day 3
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ALN-4285EXPERIMENTALParticipants will be administered ALN-4285 subcutaneously (SC)
PlaceboPLACEBO_COMPARATORParticipants will be administered placebo SC

Interventions

NameTypeDescription
ALN-4285DRUGALN-4285 will be administered SC
PlaceboDRUGPlacebo will be administered SC
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Has a body mass index (BMI) of ≥18.0 kg/m\^2 and ≤30 kg/m\^2 * Has 12-lead ECG within normal limits or with no clinically significant abnormalities in the opinion of the Investigator Exclusion Criteria: * Has alanine aminotransferase (ALT) or aspartate aminotransferase (AST)...

Countries:United Kingdom
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Recent Changes (Last 90 Days)

LOWAug 12, 2026NCT07295717lastUpdatePostDate: changed
LOWAug 12, 2026NCT07295717lastUpdatePostDate: changed
LOWJul 14, 2026NCT07295717lastUpdatePostDate: changed
LOWJul 14, 2026NCT07295717lastUpdatePostDate: changed
LOWJun 12, 2026NCT07295717lastUpdatePostDate: changed
LOWJun 12, 2026NCT07295717lastUpdatePostDate: changed

Frequently asked questions about ALN-4285

What is ALN-4285?

ALN-4285 is an investigational small molecule being developed by Alnylam Pharmaceuticals for use in healthy volunteers. It is currently in Phase 1 clinical development, with an active trial evaluating its safety and tolerability in adult healthy volunteers.

Who makes ALN-4285?

ALN-4285 is being developed by Alnylam Pharmaceuticals, Inc., a biopharmaceutical company traded on the NASDAQ under the ticker symbol ALNY. The company is currently conducting a Phase 1 study of ALN-4285 in healthy volunteers.

What phase is ALN-4285 in?

ALN-4285 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. A Phase 1 study is currently recruiting participants to evaluate the drug in adult healthy volunteers.

What clinical trials is ALN-4285 in?

ALN-4285 is being studied in a single Phase 1 clinical trial with the identifier NCT07295717. The study, titled "A Study to Evaluate ALN-4285 in Adult Healthy Volunteers," is recruiting participants in the United Kingdom and is expected to enroll 76 healthy volunteers.

Is ALN-4285 being studied in a randomized, double-blind trial?

Yes, the Phase 1 trial of ALN-4285 is randomized, double-blind, and placebo-controlled. This design is used to assess the safety and tolerability of the drug compared to placebo in healthy adult volunteers.