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A Master Protocol Studying Multiple Amyloid-Targeting Therapies in Healthy Participants and Participants With Alzheimer's Disease

A Master Protocol for Phase 1 Clinical Trials of Multiple Amyloid-Targeting Therapies for the Treatment of Alzheimer's Disease

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07787169
Enrollment
179
Registered
2026-08-26
Start date
2026-09-01
Completion date
2028-07-01
Last updated
2026-08-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer Disease, Amyloid, Plaque, Amyloid, Healthy Volunteers

Brief summary

The purpose of this Master Protocol is to support multiple studies looking at safety and tolerability of different drugs in healthy participants and participants with Alzheimer's disease, and if they remove clumps of protein (amyloid plaque) in the brain in participants with Alzheimer's Disease. Participants will enroll into either A1D-MC-AT01 (NCT07787182) or A1D-MC-AT02 (upcoming).

Interventions

Administered intravenously (IV)

DRUGPlacebo

Administered IV

Administered IV

Administered IV

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
Yes

Inclusion criteria

Participants must meet eligibility criteria below. Additional criteria are specified in the substudy to which the participant will enroll. Inclusion Criteria for Healthy Participants: * Are between 18 and 45 years of age * Have a body mass index (BMI) of 18.0 to 32.0 kilograms per square meter (kg/m²) * Are overtly healthy as determined by medical evaluation, including medical history, physical examination, and electrocardiograms (ECGs). Inclusion Criteria for Participants with Alzheimer's Disease (AD): * Are between 55-85 years of age * Have gradual and progressive changes in memory function, as reported by the participant or their study partner, for greater than or equal to (≥) 6 months at screening, as well as a clinical diagnosis of mild cognitive impairment due to AD or mild-to-moderate AD dementia as determined by the investigator or based on medical history. * Have Mini-Mental State Exam (MMSE) score ≥16 * Have positive amyloid positron emission tomography (PET) * Have a reliable study partner who will provide written informed consent to participate and is in frequent contact with the participant. A second person may serve as backup. * For participants on symptomatic treatments for AD (for example, cholinesterase inhibitors, memantine) the dosing regimen must be stable, in the opinion of the investigator, for at least 8 weeks before randomization to a study intervention, and the dosing regimen is planned to remain stable.

Exclusion criteria

for all Participants: * Have currently, or a history of, serious or unstable neurological or psychological disease (except for AD for participants in the AD cohorts). * Have currently, or a history of, significant cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, hematological, or neurological diseases. * Have currently, or a history of, allergies to monoclonal antibodies, diphenhydramine, epinephrine, or methylprednisolone. * Have currently, or a history of, clinically significant multiple or severe drug allergies or severe posttreatment hypersensitivity reactions. * Have currently, or a history of cancer within the past 5 years except for some early skin cancers that have been resected with no evidence of metastatic disease for 3 years. * Have received any amyloid-targeting therapy (ATT), whether marketed or investigational; or have received active immunization against amyloid beta (Aβ). * Have received an active study intervention, within the last 30 days, in a clinical study involving an IMP. * Are pregnant or breastfeeding or intend to become pregnant or to breastfeed during the study; * Have an abnormal blood pressure, pulse rate, or both, as determined by the investigator, or a preexisting history of hypertension.

Design outcomes

Primary

MeasureTime frame
The number of participants allocated to each substudyBaseline up to Day 160

Countries

United States

Contacts

CONTACTTrial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or
LillyTrials@Lilly.com1-317-615-4559
CONTACTPhysicians interested in becoming principal investigators please contact
clinical_inquiry_hub@lilly.com
STUDY_DIRECTORCall 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 8 AM - 8 PM Eastern time (UTC/GMT - 5 hours, EST)

Eli Lilly and Company

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 28, 2026