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Remternetug

Phase 3

Alzheimers Disease | Small molecule | Neurology |Eli Lilly and Company|Trials Updated: Oct 7, 2026

Remternetug development status

Highest phase Phase 3
Registered trials 5 across 2 sponsors since Oct 2018

Remternetug target and mechanism

Molecular targetamyloid beta
ModalitySmall molecule

Also known as Remternetug (Test), Remternetug (IV), Remternetug (SC), LY3372993

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials6
Total Enrollment3,802

FDA Designations

No designations recorded

Remternetug clinical trials

Remternetug · 6 trials · 6 indications

Phase 3 2Phase 2 2Phase 1 2
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.

Number of Participants with One or More Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration
Baseline through Week 61 (part A) and Week 13 (Part B)

A summary of SAEs and other non-serious adverse events (AEs), regardless of causality, will be reported in the Reported Adverse Events module

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
LY3372993 (Part A)EXPERIMENTALLY3372993 administered as multiple doses either intravenously (IV) or subcutaneously (SC).
LY3372993 (Part B)EXPERIMENTALLY3372993 administered as single dose IV or SC.
Placebo (Part A)PLACEBO_COMPARATORPlacebo administered as multiple doses IV or SC.
Placebo (Part B)PLACEBO_COMPARATORPlacebo administered as single dose IV or SC.

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
LY3372993DRUGAdministered IV or 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)

LOWOct 7, 2026NCT06653153lastUpdatePostDate: changed
LOWOct 7, 2026NCT06653153lastUpdatePostDate: changed
LOWJul 27, 2026NCT05552157lastUpdatePostDate: changed
LOWJul 27, 2026NCT06647498lastUpdatePostDate: changed
LOWJul 27, 2026NCT05552157lastUpdatePostDate: changed
LOWJul 27, 2026NCT06647498lastUpdatePostDate: changed
LOWJul 27, 2026NCT05552157lastUpdatePostDate: changed
LOWJul 27, 2026NCT06647498lastUpdatePostDate: changed

Frequently asked questions about Remternetug

What is Remternetug?

Remternetug is an investigational small molecule being developed by Eli Lilly and Company for Alzheimer's disease. It is designed to target amyloid beta and is currently in Phase 3 clinical development. Remternetug is not yet approved for any indication and remains under study in clinical trials.

What is Remternetug used for in Alzheimer's disease?

Remternetug is being studied as a potential disease-modifying treatment for Alzheimer's disease, including early Alzheimer's disease and early-onset forms linked to genetic mutations. It is investigational and has not been approved for use. Clinical trials are evaluating its effects in participants with or at risk for Alzheimer's disease.

What does Remternetug target?

Remternetug targets amyloid beta. By binding to amyloid beta, it is intended to interfere with the amyloid pathway implicated in Alzheimer's disease. This mechanism is being evaluated in clinical trials for its potential to modify disease progression in patients with Alzheimer's disease.

Who is developing Remternetug?

Remternetug is being developed by Eli Lilly and Company, which trades under the ticker LLY. The company is responsible for the clinical development program, including the Phase 3 TRAILRUNNER-ALZ trials and Phase 2 studies in early-onset Alzheimer's disease.

What phase is Remternetug in?

Remternetug is in Phase 3 clinical development. It is investigational and has not been approved by the FDA or any regulatory agency. The Phase 3 program includes the TRAILRUNNER-ALZ 1 and TRAILRUNNER-ALZ 3 trials, while Phase 2 studies are also ongoing in specific Alzheimer's populations.

What clinical trials is Remternetug in?

Remternetug is being evaluated in four clinical trials. These include Phase 3 trials NCT06653153 (TRAILRUNNER-ALZ 3) and NCT05463731 (TRAILRUNNER-ALZ 1), plus Phase 2 trials NCT06647498 and NCT05552157 in early-onset Alzheimer's disease. Total enrollment across these studies is 3,627 participants.

Is Remternetug the same as Remternetug (Test), Remternetug (IV), or Remternetug (SC)?

Yes, Remternetug (Test), Remternetug (IV), and Remternetug (SC) are alternative names or formulations referring to the same investigational drug, Remternetug. The IV and SC notations likely indicate intravenous and subcutaneous administration routes being studied. All refer to the amyloid beta-targeting agent developed by Eli Lilly and Company.