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Remternetug

Phase 3

Alzheimer's Disease | Small molecule | Neurology |Eli Lilly and Company|Last Updated: Jul 27, 2026

Target and mechanism

ModalitySmall molecule

Also known as Remternetug (SC)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment3,067

FDA Designations

No designations recorded

Clinical trial landscape

Remternetug · 5 trials · 5 indications

Phase 3 2Phase 2 2Phase 1 1
NCT06653153A Study of Remternetug (LY3372993) in Early Alzheimer's Disease (TRAILRUNNER-ALZ 3)Alzheimer's Disease
ACTIVE NOT_RECRUITING1,400 Analytics
NCT05463731A Study of Remternetug (LY3372993) in Participants With Alzheimer's Disease (TRAILRUNNER-ALZ 1)Alzheimer's Disease
COMPLETED1,667 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Study of Remternetug (LY3372993) in Early Alzheimer's Disease (TRAILRUNNER-ALZ 3)
Alzheimer's DiseaseUnlock trial analytics
PHASE3COMPLETED
A Study of Remternetug (LY3372993) in Participants With Alzheimer's Disease (TRAILRUNNER-ALZ 1)
Alzheimer's DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Time to Clinically Meaningful Progression as Measured by Clinical Dementia Rate Scale (CDR)
Baseline to Time to Event up to Week 255

Time to clinically meaningful progression as measured by CDR. CDR is a clinician-rated scale that provides an overall assessment of the participant's stage and degree of impairment across the continuum of early Alzheimer's Disease (AD).

Percentage of Participants Who Reach Amyloid Plaque Clearance on Amyloid PET Scan for Remternetug versus Placebo
Week 52
Stage 1: Evaluate the ability of study drug to prevent or slow the rate of Aβ accumulation compared with placebo in participants with mutations that cause DIAD
Baseline and Week 208

Defined in each drug-specific appendix; will be an assessment of biomarkers of early-stage disease (e.g., amyloid PET, soluble amyloid, soluble phospho-tau) compared with baseline in each treatment group

Stage 2: Evaluate the effect of anti-amyloid treatment on downstream biomarkers of AD
Stage 2 Week 208

If applicable, will be defined in each drug-specific appendix, and will be an assessment of the change in progression of biomarkers representing tau, neurodegenerative, and inflammatory pathobiological events in the disease cascade for temporally different periods of the pre-symptomatic phases of the disease.

Stage 1: Change in amyloid load as measured by centiloid (CL) [11C]PiB-PET as biomarker endpoint for DIAN-TU-002 remternetug arm
Baseline and Week 192

CL calculated using \[11C\] PiB PET non-partial volume corrected (regional spread function) standardized uptake value ratio cortical composite (PiB PET SUVR) is the primary outcome and change from baseline at 2 years is the primary endpoint.

Pharmacokinetic (PK): Maximum Concentration (Cmax) of Remternetug
Predose up to Day 85
Pharmacokinetic (PK): Area Under the Concentration Versus Time Curve from Zero to time t [AUC(0-t)] of Remternetug
Predose up to Day 85
Pharmacokinetic (PK): Area Under the Concentration Versus Time Curve from Zero to Infinity [AUC(0-inf)] of Remternetug
Predose up to Day 85

Secondary Endpoints

Change from Baseline in Clinical Dementia Rate Box Score (SB)
Baseline, Week 255
Change from Baseline in Montreal Cognitive Assessment (MoCA)
Baseline, Week 255
Change from Baseline in the Category Fluency - Language, Executive Function, Semantic Memory
Baseline, Week 255
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
RemternetugEXPERIMENTALRemternetug administered subcutaneously (SC).
PlaceboPLACEBO_COMPARATORPlacebo administered SC.
Remternetug (IV)EXPERIMENTALParticipants will receive remternetug intravenously (IV) Participants will receive remternetug IV during the treatment period, then switch to placebo IV in the extension period.
Remternetug (SC)EXPERIMENTALParticipants will receive one of two dosing regimens of remternetug subcutaneously (SC) Participants will receive remternetug SC during the treatment period, then switch to placebo SC in the extension period.
Open-Label Addenda Remternetug (IV)EXPERIMENTALParticipants will receive one of six dosing regimens of remternetug IV during the open-label addenda.
Open-Label Addenda Remternetug (SC)EXPERIMENTALParticipants will receive one of nine dosing regimens of remternetug SC during the open-label addenda.
Stage 1: RemternetugEXPERIMENTALActive Remternetug- blinded
Stage 1: Matching Placebo (Remternetug)PLACEBO_COMPARATORMatching placebo
Stage 2: Remternetug Open LabelACTIVE_COMPARATOROpen label will start after last dose of Stage 1
Remternetug (Test)EXPERIMENTALRemternetug administered subcutaneously (SC) via autoinjector (AI)
Remternetug (Reference)EXPERIMENTALRemternetug administered SC via prefilled syringe.

Interventions

NameTypeDescription
RemternetugDRUGAdministered SC
PlaceboDRUGAdministered SC
Remternetug (IV)DRUGAdministered IV
Remternetug (SC)DRUGAdministered SC
Matching Placebo (Remternetug)DRUGAdministered as subcutaneous injection of placebo every 12 weeks
Remternetug (Test)DRUGAdministered SC
Remternetug (Reference)DRUGAdministered SC
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Eligibility Criteria

Age Range55 Years to 80 Years
SexALL
Healthy VolunteersNo
Study Sites262

Inclusion Criteria: * Have a phosphorylated tau (P-tau) result consistent with the presence of amyloid pathology. * Have a reliable study partner and backup study partner familiar with overall function and behavior, such as day-to-day activities and cognitive abilities. * Have adequate literacy, vi...

Countries:United StatesAustraliaCanadaChinaJapanPuerto RicoSouth KoreaSpainTaiwanUnited KingdomArgentinaColombiaFranceGermanyItalyMexicoNetherlandsNew Zealand
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Recent Changes (Last 90 Days)

LOWJul 27, 2026NCT05552157lastUpdatePostDate: changed
LOWJul 27, 2026NCT06647498lastUpdatePostDate: changed
LOWJul 27, 2026NCT05552157lastUpdatePostDate: changed
LOWJul 27, 2026NCT06647498lastUpdatePostDate: changed
LOWJul 27, 2026NCT05552157lastUpdatePostDate: changed
LOWJul 27, 2026NCT06647498lastUpdatePostDate: changed
MEDIUMJun 22, 2026NCT05463731TRIAL_REMOVED: changed
MEDIUMJun 22, 2026NCT05463731TRIAL_REMOVED: changed
MEDIUMJun 22, 2026NCT05463731TRIAL_REMOVED: changed

Frequently asked questions about Remternetug

What is Remternetug used for?

Remternetug is an investigational small molecule being developed for Alzheimer's disease. It is being studied in healthy individuals and in people with Alzheimer's disease, including early-onset familial forms caused by genetic mutations. The drug is administered subcutaneously and is currently in Phase 3 clinical trials.

Who makes Remternetug?

Remternetug is being developed by Eli Lilly and Company, a pharmaceutical company traded on the NYSE under the ticker symbol LLY. The company is conducting multiple clinical trials to evaluate the drug's potential as a disease-modifying treatment for Alzheimer's disease.

What phase is Remternetug in?

Remternetug is in Phase 3 clinical development for Alzheimer's disease. It is not yet approved by regulatory authorities and remains investigational. The drug is being evaluated in the TRAILRUNNER-ALZ 3 study, a Phase 3 trial that is active but not recruiting participants.

What clinical trials is Remternetug in?

Remternetug is being studied in several clinical trials. NCT06653153 is a Phase 3 trial in early Alzheimer's disease with 1,400 participants. NCT05463731 is a completed Phase 3 trial in Alzheimer's disease. NCT05552157 and NCT06647498 are Phase 2 trials in individuals at risk for or with early-onset Alzheimer's caused by genetic mutations.

Is Remternetug the same as LY3372993?

Yes, Remternetug is also known by the code name LY3372993. Clinical trial records refer to the drug as Remternetug (LY3372993), confirming that these names identify the same investigational compound being developed by Eli Lilly for Alzheimer's disease.

Is Remternetug FDA approved?

Remternetug is not FDA approved. It is an investigational drug currently in Phase 3 clinical trials for Alzheimer's disease. The drug has not completed the regulatory review process, and its safety and efficacy have not been established for commercial use.