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DNL628

Phase 1

Alzheimer Disease, Early Onset | Small molecule | Neurology |Denali Therapeutics Inc.|Trials Updated: Jul 1, 2026

DNL628 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Jan 2026

DNL628 target and mechanism

Molecular targettau
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment68

FDA Designations

No designations recorded

DNL628 clinical trials

DNL628 · 1 trial · 1 indication

Phase 1 1
NCT07328451A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of DNL628 in Participants With Early Alzheimer's DiseaseAlzheimer Disease, Early Onset
RECRUITING68 Analytics
PHASE1RECRUITING
A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of DNL628 in Participants With Early Alzheimer's Disease
Alzheimer Disease, Early OnsetUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence and severity of treatment-emergent adverse events (TEAEs) throughout the double-blind period
37 weeks

Secondary Endpoints

PK parameter: Maximum concentration (Cmax) of DNL628 in plasma
37 weeks
PK Parameter: Time to reach maximum concentration (tmax) of DNL628 in plasma
37 weeks
PK Parameter: Minimum concentration (Cmin) of DNL628 in plasma
37 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Experimental ArmEXPERIMENTAL -
Placebo ArmPLACEBO_COMPARATOR -

Interventions

NameTypeDescription
DNL628DRUGMultiple ascending doses
PlaceboDRUGMultiple ascending doses
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites4

Key Inclusion Criteria: * BMI of ≥18 to \< 32 kg/m2 and body weight of ≥45 kg * Have a diagnosis of probable AD dementia based on NIA AA 2011 criteria, including amnestic or nonamnestic presentation at screening * Have supportive evidence of AD pathology via historical records or laboratory testing...

Countries:NetherlandsUnited Kingdom
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Frequently asked questions about DNL628

What is DNL628?

DNL628 is an investigational small molecule developed by Denali Therapeutics Inc. (NASDAQ: DNLI) for the treatment of early onset Alzheimer disease. It is designed to target tau, a protein implicated in the disease. DNL628 is currently in Phase 1 clinical development and has not been approved by any regulatory agency.

What is DNL628 used for in Alzheimer disease?

DNL628 is being developed for the treatment of early onset Alzheimer disease. It is an investigational therapy that targets the tau protein. The Phase 1 trial is evaluating its safety, tolerability, pharmacokinetics, and pharmacodynamics in participants with early Alzheimer's disease. It is not yet approved for any indication.

What does DNL628 target?

DNL628 targets tau, a protein that accumulates in the brains of patients with Alzheimer disease. By targeting tau, the drug aims to interfere with the pathological process of tau aggregation or spread. Tau is a well-established target in Alzheimer's research, and DNL628 is a small molecule designed to engage it.

Who is developing DNL628?

DNL628 is being developed by Denali Therapeutics Inc., a biotechnology company traded on the Nasdaq under the ticker symbol DNLI. Denali focuses on therapies for neurodegenerative diseases, and DNL628 is part of its pipeline for Alzheimer disease.

What phase is DNL628 in?

DNL628 is in Phase 1 clinical development. The only trial to date is a Phase 1 study that is currently recruiting participants. As an investigational drug, DNL628 has not been approved by the FDA or any other regulatory authority for any indication.

What clinical trials is DNL628 in?

DNL628 is being studied in one Phase 1 clinical trial, NCT07328451, titled "A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of DNL628 in Participants With Early Alzheimer's Disease." The trial is currently recruiting and plans to enroll 68 participants in the Netherlands and the United Kingdom.