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Lilly and Banner Alzheimer's Institute collaborate on planned Phase 3 prevention trial of donanemab

Trial will include participants at risk for cognitive and functional decline related to Alzheimer’s disease 

INDIANAPOLIS and PHOENIX (July 15, 2021) – Eli Lilly and Company (NYSE: LLY) and Banner Alzheimer’s Institute today announced a strategic research collaboration as part of the planned Phase 3, randomized, placebo-controlled study evaluating donanemab in participants at risk for cognitive and functional decline related to Alzheimer’s disease (TRAILBLAZER-ALZ 3). TRAILBLAZER-ALZ 3 will evaluate whether treatment with donanemab can slow the clinical progression of Alzheimer’s disease in trial participants. 

As part of the collaboration, Banner will leverage its expertise and proven leadership in Alzheimer’s prevention trials, and support enrollment of trial participants with and without the e4 type of the apolipoprotein E (APOE4) gene through the Alzheimer’s Prevention Registry’s GeneMatch program. The collaboration will introduce a more virtual approach to the evaluation of Alzheimer’s prevention therapies. Lilly and Banner are committed to using the screening and treatment data as a shared scientific resource. Lilly remains the sole sponsor of the clinical trial and plans to begin enrollment later this year.

“This collaboration combines Lilly’s more than 30 years of dedication to Alzheimer’s research with Banner’s unique expertise and showcases our collective commitment to partner within the health care community to find potential treatments to end this devastating disease,” said Mark Mintun, M.D., vice president of pain and neurodegeneration, Lilly. “Our TRAILBLAZER-ALZ 3 trial will evaluate whether donanemab can prevent clinical progression in patients who have evidence of Alzheimer’s pathology, but don’t yet demonstrate clinical symptoms. While these types of trials are challenging to enroll and conduct, Lilly, together with Banner, is proud to undertake the opportunity to bring about this new study in an area of high unmet medical need.” 

“We are excited about the chance to work with Lilly in the effort to find an effective Alzheimer’s prevention therapy as soon as possible, introduce novel ways to increase the size, speed, and ease of participating in Alzheimer’s prevention trials, and do so in ways that might benefit the entire field,” said Eric M. Reiman, M.D., Banner Alzheimer’s Institute executive director and one of the study’s lead principal investigators. “We must do everything we can to find and support the availability of effective prevention therapies for this devastating disease, and this trial includes several potentially transformational elements to help in this endeavor.”

Donanemab is an investigational antibody that targets a modified form of beta amyloid called N3pG. Results from a Phase 2 study of donanemab were announced earlier this year. Visit for additional information on TRAILBLAZER-ALZ 3. Donanemab is also being studied in the ongoing Phase 3 TRAILBLAZER-ALZ 2 study in early, symptomatic Alzheimer’s disease patients. To learn more about the TRAILBLAZER-ALZ 2 study or to see prequalifications, visit

About Alzheimer’s Disease

Alzheimer's disease is a fatal illness that causes progressive decline in memory and other aspects of cognition. Dementia due to Alzheimer’s disease is the most common form of dementia, accounting for 60 to 80 percent of all cases1. There are currently over 50 million people living with dementia around the world, with numbers expected to increase to nearly 152 million by 20502. Almost 10 million new cases of dementia are diagnosed each year worldwide, implying one new case every 3 seconds, and a significant increase in the caregiving burden placed on society and families. In the US alone, there was an increase of 8 million new caregivers from 2015 to 20203. The current annual societal and economic cost of dementia is estimated at $1 trillion, an amount that is expected to double by 2030 unless we find a way to slow the disease2.

In an addition to age and family history of AD, the greatest risk factor for developing AD is the presence of the apolipoprotein E ε4 (APOE4) allele.1 Having one APOE4 allele increases the risk of developing Alzheimer’s disease by approximately three times compared with those with two copies of the APOE3 form. Those who inherit two copies of the APOE4 allele have an 8 - 12-fold risk.  In addition, those with the APOE4 allele are more likely to have beta-amyloid accumulation and Alzheimer’s dementia at a younger age than those with the APOE2 or APOE3 forms of the APOE gene.  

About Banner Alzheimer’s Institute

Since its inception in 2006, Banner Alzheimer’s Institute (BAI) has sought to find effective Alzheimer’s disease prevention therapies without losing another generation, establish a new model of dementia care for patients and family caregivers, and forge new models of collaboration in biomedical research. It has made groundbreaking contributions to the unusually early detection, tracking, diagnosis and study of Alzheimer’s, and aims to find an effective prevention therapy by 2025. It includes the pioneering Alzheimer’s Prevention Initiative (API), an extensive profile of research studies and clinical trials, comprehensive clinical, family and community service programs, a leading brain imaging research program, and strategic partnerships with numerous public and private research organizations around the world. Learn more at

About Alzheimer’s Prevention Initiative

The Alzheimer’s Prevention Initiative (API) is an international collaborative formed to launch a new era of Alzheimer’s prevention research. Led by the Banner Alzheimer’s Institute, the API conducts prevention trials in cognitively healthy people at increased genetic risk for Alzheimer’s disease. It will continue to establish the brain imaging, biological and cognitive measurements needed to rapidly test promising prevention therapies and provide registries to support enrollment into Alzheimer’s-focused studies. API is intended to provide the scientific means, accelerated approval pathway and enrollment resources needed to evaluate the range of promising Alzheimer’s prevention therapies and find ones that work without losing another generation. For more information, visit

About Eli Lilly and Company

Lilly is a global healthcare leader that unites caring with discovery to make life better for people around the world. We were founded more than a century ago by a man committed to creating high-quality medicines that meet real needs, and today we remain true to that mission in all our work. Across the globe, Lilly employees work to discover and bring life-changing medicines to those who need them, improve the understanding and management of disease, and give back to communities through philanthropy and volunteerism. To learn more about Lilly, please visit us at and P-LLY

Lilly Cautionary Statement Regarding Forward-Looking Statements

This press release contains forward-looking statements (as that term is defined in the Private Securities Litigation Reform Act of 1995) about donanemab as a potential treatment for people with Alzheimer’s disease, the timing for Lilly’s trials, and the benefits of a collaboration with Banner Alzheimer’s Institute and reflects Lilly's current beliefs and expectations.

However, as with any such undertaking, there are substantial risks and uncertainties in the process of drug research, development, and commercialization. Among other things, there is no guarantee that future study results will be consistent with study results to date, that donanemab will prove to be a safe and effective treatment for Alzheimer’s disease, that donanemab will receive regulatory approval, that Lilly will realize the expected benefits of the collaboration, or that Lilly will execute its strategy as expected. For further discussion of these and other risks and uncertainties, see Lilly's Form 10-K and Form 10-Q filings with the United States Securities and Exchange Commission. Except as required by law, Lilly undertakes no duty to update forward-looking statements to reflect events after the date of this release. 
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1. Alzheimer's Association. Facts and Figures. Accessed December 8, 2020.
2. Alzheimer's Disease International. World Alzheimer Report 2019. Accessed December 8, 2020.
3. AARP. 2020 Report: Caregiving in the U.S. Accessed December 8, 2020. 

Alzheimer Banner Alzheimers Institute Banner Health Disease Medical Care Research

For further information contact us at: [email protected]

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