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Donanemab

Phase 3

Alzheimer's Disease | Small molecule | Neurology |Eli Lilly and Company|Last Updated: Jul 17, 2026

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Trial Design
RandomizedDouble-BlindCONTROLLEDDMC
Total Trials1
Total Enrollment1,175
FDA Designations
ACCELERATED_APPROVAL
Clinical trial landscape

Donanemab · 14 trials · 18 indications

Phase 3 7Phase 2 3Phase 1 4
NCT07602582A Study of Donanemab (LY3002813) in Participants Who Completed Study AACM (TRAILBLAZER-ALZ 3-EXT).Alzheimer Disease
RECRUITING550 Analytics
NCT07571161Donanemab (LY3002813) Trial in Chinese Participants With Cognitively Unimpaired (Preclinical) Alzheimer's DiseaseAlzheimer Disease
RECRUITING140 Analytics
NCT05738486A Study of Different Donanemab (LY3002813) Dosing Regimens in Adults With Early Alzheimer's Disease (TRAILBLAZER-ALZ 6)Alzheimer's Disease
ACTIVE NOT_RECRUITING1,175 Analytics
NCT05508789A Study of Donanemab (LY3002813) in Participants With Early Symptomatic Alzheimer's Disease (TRAILBLAZER-ALZ 5)Alzheimer Disease
ACTIVE NOT_RECRUITING1,500 Analytics
NCT05108922A Study of Donanemab (LY3002813) Compared With Aducanumab in Participants With Early Symptomatic Alzheimer's Disease (TRAILBLAZER-ALZ 4)Mild Cognitive Impairment (MCI)
COMPLETED148 Analytics
NCT05026866A Donanemab (LY3002813) Study in Participants With Preclinical Alzheimer's Disease (TRAILBLAZER-ALZ 3)Alzheimer Disease
ACTIVE NOT_RECRUITING2,996 Analytics
NCT04437511A Study of Donanemab (LY3002813) in Participants With Early Alzheimer's Disease (TRAILBLAZER-ALZ 2)Alzheimer Disease
ACTIVE NOT_RECRUITING1,736 Analytics
PHASE3RECRUITING
A Study of Donanemab (LY3002813) in Participants Who Completed Study AACM (TRAILBLAZER-ALZ 3-EXT).
Alzheimer DiseaseUnlock trial analytics
PHASE3RECRUITING
Donanemab (LY3002813) Trial in Chinese Participants With Cognitively Unimpaired (Preclinical) Alzheimer's Disease
Alzheimer DiseaseUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study of Different Donanemab (LY3002813) Dosing Regimens in Adults With Early Alzheimer's Disease (TRAILBLAZER-ALZ 6)
Alzheimer's DiseaseUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study of Donanemab (LY3002813) in Participants With Early Symptomatic Alzheimer's Disease (TRAILBLAZER-ALZ 5)
Alzheimer DiseaseUnlock trial analytics
PHASE3COMPLETED
A Study of Donanemab (LY3002813) Compared With Aducanumab in Participants With Early Symptomatic Alzheimer's Disease (TRAILBLAZER-ALZ 4)
Mild Cognitive Impairment (MCI)Unlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Donanemab (LY3002813) Study in Participants With Preclinical Alzheimer's Disease (TRAILBLAZER-ALZ 3)
Alzheimer DiseaseUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study of Donanemab (LY3002813) in Participants With Early Alzheimer's Disease (TRAILBLAZER-ALZ 2)
Alzheimer DiseaseUnlock trial analytics
Study Endpoints
Primary Endpoints
Change from Baseline as Measured by Clinical Dementia Rating - Sum of Boxes (CDR-SB)
Baseline through Week 130
Time to Clinical Progression as Measured by Clinical Dementia Rating-Global Score (CDR-GS)
Baseline Up to Week 156
Percentage of Participants With Any Occurrence of Amyloid-Related Imaging Abnormality-Edema/Effusion (ARIA-E)
24 Weeks

Percentage of participants with occurrence of ARIA-E at Week 24 is reported here.

Change from Baseline on the Integrated Alzheimer's Disease Rating Scale (iADRS)
Baseline, Week 76

Change from Baseline on the iADRS in at least one of the low-medium tau pathology population or no-very low and low-medium tau pathology population.

Percentage of Participants Who Reach Complete Amyloid Plaque Clearance on Florbetapir F18 Positron Emission Tomography (PET) Scan (Superiority) on Donanemab Versus Aducanumab
6 Months

Amyloid deposition in the brain is one of the defining neuropathologic findings of Alzheimer's disease (AD). Amyloid PET scan assesses cerebral amyloid load using florbetapir tracer which is standardized into Centiloids for evaluation of AD. Florbetapir exhibits high affinity specific binding to amyloid plaques. Centiloid values on Centiloid scale is based on mean composite Standardized Uptake Value Ratio (SUVR) in cingulate, frontal, parietal and temporal cortexes using whole cerebellum as reference region. SUVR is ratio of tracer uptake in each of cingulate, frontal, parietal and temporal cortexes relative to cerebellum. Complete brain amyloid plaque clearance is a binary outcome and is defined as a Centiloid value \<24.1 from the florbetapir F18 PET scan.

Percentage of Participants Who Reach Complete Amyloid Plaque Clearance on Florbetapir F18 PET Scan in the Low/Medium (Intermediate) Subpopulation (Superiority) on Donanemab Versus Aducanumab
6 Months

Complete brain amyloid plaque clearance is a binary outcome and is defined as a Centiloid value \<24.1 from the florbetapir F18 PET scan.

Time to Clinical Progression of Composite Endpoint as Measured by Clinical Dementia Rating (CDR) in the Primary Study Population (Baseline CDR-Global Score [GS 0])
Estimated up to Week 332

Time to clinical progression as measured by CDR. CDR is a clinician-rated scale that provides an overall assessment of the participant's stage on the spectrum of Alzheimer's Disease (AD) dementia

Change From Baseline on the Integrated Alzheimer's Disease Rating Scale (iADRS) (Overall Population)
Baseline, Week 76

Integrated Alzheimer's Disease Rating Scale is used to assess whether donanemab slows down the clinical decline associated with AD compared with placebo. iADRS is an integrated assessment of cognition and daily function comprised of items from the ADAS-Cog13 and the Alzheimer's disease cooperative study-instrumental activities of daily living scale (ADCS-iADL). The scale ranges from 0 to 144, where lower scores indicate worse performance and higher score indicates better performance. Least Squares (LS) Mean value was adjusted for basis expansion terms (two terms), basis expansion term-by-treatment interaction, and covariates for age at baseline, pooled investigator, baseline tau level, and baseline acetylcholinesterase inhibitor (AchI)/Memantine use.

Change From Baseline on the Integrated Alzheimer's Disease Rating Scale (iADRS) (Intermediate (Low-medium) Tau Population)
Baseline, Week 76

Integrated Alzheimer's Disease Rating Scale is used to assess whether donanemab slows down the clinical decline associated with AD compared with placebo. iADRS is an integrated assessment of cognition and daily function comprised of items from the Alzheimer's disease assessment scale-cognitive subscale (ADAS-Cog13) and the Alzheimer's disease cooperative study-instrumental activities of daily living scale (ADCS-iADL). The scale ranges from 0 to 144, where lower scores indicate worse performance and higher score indicates better performance. LS Mean value was adjusted for basis expansion terms (two terms), basis expansion term-by-treatment interaction, and covariates for age at baseline, pooled investigator, and baseline AchI/Memantine use.

Change from Baseline on Clinical Dementia Rating - Sum of Boxes (CDR-SB)
Baseline through Week 52
Part A: Intraclass Correlation Between On-Site and Video Teleconference (VTC) Assessments
Baseline to 4 Weeks

Part A didn't involve any drug and drug related efficacy analyses. Participants in Part A were divided into 2 groups, and they completed the same set of clinical assessments. Participants in Part A Group 1 completed the clinical assessments at a clinic site first (on-site) followed by at home assessments (VTC). Participants in Part A Group 2 completed the assessments at home first, followed by on-site assessment. The goal of Part A was to evaluate the comparability of remote and on-site clinical assessments. The intra-class correlation coefficient (ICC), a measure of agreement for continuous outcome measures, was used to determine agreement between remote and onsite assessments for each outcome measure. Outcome measure tested were the Alzheimer's Disease Assessment Scale-Cognitive subscale (ADAS-Cog13), Alzheimer's Disease Cooperative Study-Activities of Daily Living Inventory (ADCS-ADL), Mini Mental State Examination (MMSE), and Clinical Dementia Rating Scale-Sum of Boxes (CDR-SB).

Part B: Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
Baseline Up To 96 Weeks

Percentage of participants with TEAEs and SAEs were reported here. A summary of SAEs and other non-serious AEs, regardless of causality is located in the Reported Adverse Events section of this record.

Part B: Number of Participants With Suicidality Based on Columbia-Suicide Severity Rating Scale (C-SSRS)
Baseline, Week 72

Number of Participants with Suicidality Based on C-SSRS was reported.

Change From Baseline in the Integrated Alzheimer's Disease Rating Scale (iADRS) Score
Baseline, 76 Weeks

Integrated Alzheimer's Disease Rating Scale is used to assess whether donanemab slows down the cognitive and functional decline associated with AD compared with placebo. iADRS is a simple linear combination of 13-item alzheimer's disease assessment scale-cognitive subscale (ADAS-Cog13) and the Alzheimer's disease cooperative study-instrumental activities of daily living scale (ADCS-iADL). The scale ranges from 0 to 144, where lower scores indicate worse performance and higher score indicates better performance. Least Squares (LS) Mean value was controlled for fixed, categorical effects of treatment, visit and treatment-by-visit interaction, pooled investigator, acetylcholinesterase inhibitor (AChEI) and/or memantine use at baseline, as well as the continuous, fixed covariates of baseline, baseline-by-visit, and age at baseline.

Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve From Time Zero to Four Weeks (AUC[0-4 Weeks]) of Donanemab (i.e) Period 2, Period 4, Period 6.
Predose, end of infusion, 24, 48, 72, 96, 168, 336 hours post-dose on days 1, 15, 29, 43, 57, 71

As per the prespecified analysis, AUC\[0-4 weeks\] will be calculated as the sum of AUC0-2weeks for: * treatment period 1 and 2 (dosing days 1, 15 respectively) represented as period 2 * treatment period 3 and 4 (dosing days 29, 43 respectively) represented as period 4 * treatment period 5 and 6 (dosing days 57, 71 respectively) represented as period 6.

PK: Maximum Observed Concentration During a Dosing Interval at Steady State (Cmax, ss) of Donanemab
Predose, end of infusion, 24, 48, 72, 96, 168, 336 hours post-dose on day 71

PK: Cmax, ss of Donanemab

PK: Area Under the Concentration Versus Time Curve During a Dosing Interval at Steady State (AUCτ,ss) of Donanemab
Predose, end of infusion, 24, 48, 72, 96, 168, 336 hours post-dose on day 71

PK: AUCτ,ss of Donanemab

Number of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration
Baseline up to Day 85

A summary of SAEs and other non-serious adverse events (AEs), regardless of causality is located in the Reported Adverse Event module. Drug related TEAEs are any untoward medical occurrences that either occurs postdose or presents prior to dosing yet becomes more severe postdose, and in the opinion of the investigator is possibly related to study drug.

Change From Baseline in Florbetapir Positron Emission Tomography (PET) Scan Standard Uptake Value Ratio (SUVr)
Baseline, Week 72

Florbetapir PET imaging was used to confirm the presence of amyloid pathology consistent with AD. Change from baseline was done to test the hypothesis that amyloid burden was reduced in participants in the treatment group. The change from baseline to the postbaseline visit of the composite summary standard uptake value ratio of florbetapir F18 was calculated. Least square (LS) mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit. The composite summary measure is an unweighted average of the 6 smaller regions (anterior cingulate, frontal medial orbital, parietal, posterior cingulate, precuneus, and temporal) normalized to whole cerebellum or subject-specific white matter.

Number of Participants With One or More Serious Adverse Events (SAEs) Considered by the Investigator to be Related to Study Drug Administration
Day 1 up to Day 253

Data presented are the number of participants who experienced SAEs which were considered to be related to study treatment by the investigator while on treatment and during the follow-up. Summaries of SAEs and other non-serious adverse events (AEs), regardless of causality, are located in the Reported Adverse Events module.

Secondary Endpoints
Change from Baseline as Measured by Cognitive Function Index (CFI)
Baseline through Week 130
Change from Baseline in Brain Amyloid Plaque Levels as Measured by Florbetapir F 18 Positron Emission Tomography (PET) Scan.
Baseline through Week 130
Change From Baseline in Plasma Phosphorylated Tau at Threonine 217 (P-tau217)
Baseline through Week 130
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
DonanemabEXPERIMENTALDonanemab administered intravenously (IV)
PlaceboPLACEBO_COMPARATORPlacebo IV
1400 mg Donanemab - Standard RegimenEXPERIMENTALParticipants received: * 700 milligrams (mg) donanemab administered intravenously (IV) at baseline, week 4, and 8. * placebo administered IV at week 2, 6, 10, and 14. * 1400 mg of donanemab administered IV at week 12, 16, 20, and 24. Participants enrolled to addendum 3 will receive a single dose at least 12 months after their last dose
1400 mg Donanemab - Dose SkippingEXPERIMENTALParticipants received: * 700 mg donanemab administered IV at baseline. * placebo administered IV at week 2, 4, 6, 10, and 14. * 1400 mg of donanemab administered IV at week 8, 12, 16, 20, and 24. Participants enrolled to addendum 3 will receive a single dose at least 12 months after their last dose
1400 mg Donanemab - TitrationEXPERIMENTALParticipants received: * 350 mg donanemab administered IV at baseline. * placebo administered IV at week 2, 6, 10, and 14. * 700 mg donanemab administered IV at week 4. * 1050 mg of donanemab administered IV at week 8. * 1400 mg of donanemab administered IV at week 12, 16, 20, and 24. Participants enrolled to addendum 3 will receive a single dose at least 12 months after their last dose
1400 mg Donanemab - Maximum Concentration (Cmax)EXPERIMENTALParticipants received: * 350 mg donanemab administered IV at baseline, weeks 2, 4, 6, 8, and 10. * 700 mg donanemab administered IV at weeks 12 and 14. * 1400 mg of donanemab administered IV at weeks 16, 20, and 24. Participants enrolled to addendum 3 will receive a single dose at least 12 months after their last dose
Donanemab Addendum 2 Arm 1EXPERIMENTALParticipants will receive donanemab by IV infusion. Participants will receive placebo pretreatment to preserve the blind prior to donanemab infusion.
Donanemab Addendum 2 Arm 2EXPERIMENTALParticipants will receive donanemab by IV infusion. Participants will receive dexamethasone pretreatment prior to donanemab infusion
AducanumabACTIVE_COMPARATORAducanumab administered IV per US label.
Donanemab (LY3002813)EXPERIMENTALDonanemab (LY3002813) administered as an intravenous (IV) infusion
Part A: Validation of Remote Scale AssessmentsOTHERParticipants from the originating trials did not receive any drug in Part A. Participants were randomized 1:1 into two groups to have their cognitive and functional scales assessed. Group 1: Cognitive/functional scale assessment at the study site (on-site), followed by an at-home assessment (VTC; video teleconference), or Group 2: Cognitive/functional scale assessment at home (VTC), followed by assessment on-site. Total time in Part A was up to 24 weeks.
Part B: DonanemabEXPERIMENTALParticipants who had received placebo in the originating trials received 700 milligrams (mg) donanemab administered intravenously (IV) every 4 weeks (Q4W) for 3 doses, then 1400 mg donanemab administered IV Q4W for up to 48 weeks.
Donanemab Monotherapy (Donanemab-M)EXPERIMENTALParticipants received 700 milligram (mg) donanemab intravenously (IV) every 4 weeks (Q4W) x 3 doses, then 1400 mg donanemab IV Q4W for up to 72 weeks.
Donanemab in Combination With LY3202626 (Donanemab-C)EXPERIMENTALParticipants received 700 mg donanemab IV Q4W x 3 doses, then 1400 mg donanemab IV Q4W in combination with 12 mg of LY3202626 orally for up to 72 weeks. As per protocol amendment (d) approved on Oct 9, 2018, donanemab in combination with LY3202626 (donanemab-C) arm discontinued as there was a low probability of identifying a statistically significant effect of 12mg of LY3202626 slowing cognitive decline.
350 milligram (mg) DonanemabEXPERIMENTALSingle 350 mg Donanemab dose administered intravenously (IV) on Day 1.
700 mg DonanemabEXPERIMENTALSingle 700 mg Donanemab dose administered IV on Day 1.
1400 mg DonanemabEXPERIMENTALSingle 1400 mg Donanemab dose administered IV on Day 1.
Part A: Placebo Single Dose (SD)PLACEBO_COMPARATORParticipants received single intravenous (IV) dose of placebo.
Part A: 10 Milligram Per Kilogram (mg/kg) LY3002813 SDEXPERIMENTALParticipants received single IV dose of 10 mg/kg LY3002813.
Part A: 20 mg/kg LY3002813 SDEXPERIMENTALParticipants received single IV dose of 20 mg/kg LY3002813.
Part A: 40 mg/kg LY3002813 SDEXPERIMENTALParticipants received single IV dose of 40 mg/kg LY3002813.
Part B: Placebo Q2WPLACEBO_COMPARATORParticipants received multiple IV dose of placebo every 2 weeks (Q2W) for 24 weeks.
Part B: 10 mg/kg LY3002813 Q2WEXPERIMENTALParticipants received multiple IV dose of 10 mg/kg LY3002813 Q2W for 24 weeks.
Part C: Placebo Q4WPLACEBO_COMPARATORParticipants received multiple IV dose of placebo every 4 weeks (Q4W) for 72 weeks.
Part C:10 mg/kg LY3002813 Q4WEXPERIMENTALParticipants received multiple IV dose of 10 mg/kg LY3002813 Q4W for 72 weeks.
Part C:20 mg/kg LY3002813 Q4WEXPERIMENTALParticipants received multiple IV dose of 20 mg/kg LY3002813 Q4W for 72 weeks.
LY3002813-Single 0.1 mg/kg then multiple 0.3 mg/kgEXPERIMENTAL0.1 milligram per kilogram (mg/kg) single dose then 0.3 mg/kg LY3002813 given every 4 weeks for up to 16 weeks intravenously (IV)
LY3002813-Single then multiple 0.3 mg/kgEXPERIMENTAL0.3 mg/kg single dose then 0.3 mg/kg LY3002813 given every 4 weeks for up to 16 weeks IV
LY3002813-Single 1 mg/kg in Healthy ParticipantsEXPERIMENTAL1 mg/kg single dose LY3002813 given once by IV infusion.
LY3002813-Single then multiple 1 mg/kgEXPERIMENTAL1 mg/kg single dose then 1 mg/kg LY3002813 given every 4 weeks for up to 16 weeks IV
LY3002813-Single then multiple 3 mg/kgEXPERIMENTAL3 mg/kg single dose then 3 mg/kg LY3002813 given every 4 weeks for up to 16 weeks IV
LY3002813-Single then multiple 10 mg/kgEXPERIMENTAL10 mg/kg single dose then 10 mg/kg LY3002813 given every 4 weeks for up to 16 weeks IV
Placebo-Single then multiplePLACEBO_COMPARATORPlacebo given once, then every 4 weeks for up to 16 weeks IV
LY3002813-SCEXPERIMENTALUp to 3 mg/kg LY3002813 given once subcutaneously (SC)
LY3002813-IVEXPERIMENTALUp to 3mg/kg LY3002813 given once intravenously (IV)
Interventions
NameTypeDescription
DonanemabDRUGAdministered IV
PlaceboDRUGAdministered IV
DexamethasoneDRUGAdministered IV
AducanumabDRUGParticipants received aducanumab administered by IV infusion per US label (prescribing information/routine clinical practice).
No InterventionOTHERNo intervention
LY3202626DRUGAdministered orally
LY3002813BIOLOGICALAdministered IV
LY3002813-IVBIOLOGICALAdministered IV
LY3002813-SCBIOLOGICALAdministered SC
Placebo-IVDRUGAdministered IV
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Eligibility Criteria
Age Range55 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites59

Inclusion Criteria: * Have completed study AACM Addendum 7. * Have a reliable study partner and backup study partner familiar with overall function and behavior, such as day-to-day activities and cognitive abilities. * Are individuals assigned female at birth who are not of childbearing potential, ...

Countries:United StatesJapanPuerto RicoChinaUnited KingdomArgentinaAustraliaPolandSouth KoreaSpainTaiwanCanadaCzechiaNetherlands
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Recent Changes (Last 90 Days)
LOWJul 17, 2026NCT07589595lastUpdatePostDate: changed
LOWJul 17, 2026NCT07571161lastUpdatePostDate: changed
LOWJul 17, 2026NCT05508789lastUpdatePostDate: changed
LOWJul 17, 2026NCT07589595lastUpdatePostDate: changed
LOWJul 17, 2026NCT07571161lastUpdatePostDate: changed
LOWJul 17, 2026NCT05508789lastUpdatePostDate: changed
LOWJul 17, 2026NCT05508789lastUpdatePostDate: changed
LOWJul 7, 2026NCT07602582lastUpdatePostDate: changed
LOWJul 7, 2026NCT07589595lastUpdatePostDate: changed
LOWJul 7, 2026NCT07571161lastUpdatePostDate: changed
LOWJul 7, 2026NCT07602582lastUpdatePostDate: changed
LOWJul 7, 2026NCT07589595lastUpdatePostDate: changed
LOWJul 7, 2026NCT07571161lastUpdatePostDate: changed
LOWJun 26, 2026NCT07602582Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 26, 2026NCT07571161Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 26, 2026NCT07602582Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 26, 2026NCT07571161Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 18, 2026NCT07589595Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 18, 2026NCT05738486lastUpdatePostDate: changed
LOWJun 18, 2026NCT07589595Status: NOT_YET_RECRUITING → RECRUITING