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ALN-4285

Phase 1

Undisclosed | Small molecule | Other |Alnylam Pharmaceuticals, Inc.|Trials Updated: Sep 16, 2026

ALN-4285 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Dec 2025

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

ALN-4285 clinical trials

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)

LOWSep 16, 2026NCT07295717lastUpdatePostDate: changed
LOWSep 16, 2026NCT07295717lastUpdatePostDate: changed
LOWAug 12, 2026NCT07295717lastUpdatePostDate: changed
LOWAug 12, 2026NCT07295717lastUpdatePostDate: changed

Frequently asked questions about ALN-4285

What is ALN-4285?

ALN-4285 is an investigational small molecule therapeutic being developed by Alnylam Pharmaceuticals, Inc. It is currently in Phase 1 clinical development and is being studied in healthy adult volunteers. Its specific disease indications have not been disclosed.

Who makes ALN-4285?

ALN-4285 is being developed by Alnylam Pharmaceuticals, Inc., which trades on the Nasdaq under the ticker ALNY. Alnylam is the sponsor of the clinical program evaluating this investigational small molecule therapeutic.

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 the FDA. The ongoing Phase 1 study is enrolling healthy adult volunteers to evaluate the drug.

What clinical trials is ALN-4285 in?

ALN-4285 is being evaluated in one clinical trial, NCT07295717, titled A Study to Evaluate ALN-4285 in Adult Healthy Volunteers. This Phase 1 trial is currently recruiting, is placebo-controlled and double-blind, and plans to enroll 76 participants in the United Kingdom.

Who can participate in the ALN-4285 clinical trial?

The Phase 1 trial NCT07295717 is enrolling healthy adult volunteers aged 18 years and older, with no restriction by sex. The study is being conducted in the United Kingdom and is currently recruiting participants.

Is ALN-4285 approved by the FDA?

No. ALN-4285 is an investigational drug in Phase 1 clinical development and has not been approved by the FDA. It is being studied in healthy volunteers under clinical trial NCT07295717, which is currently recruiting.