Cited by 117Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchCholinesterase and Neurodegenerative Diseases

The Alzheimer’s Prevention Initiative Generation Program: study design of two randomized controlled trials for individuals at risk for clinical onset of Alzheimer’s disease

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Lopez Lopez, Cristina, Tariot, Pierre N., Caputo, Angelika, Langbaum, Jessica B., Liu, Fonda, Riviere, Marie‐Emmanuelle, Langlois, Carolyn, Rouzade‐Dominguez, Marie‐Laure +8 more·2019·Alzheimer's & Dementia: Translational Research & Clinical Interventions

Abstract

INTRODUCTION: Alzheimer's disease (AD) pathology, including the accumulation of amyloid beta (Aβ) species and tau pathology, begins decades before the onset of cognitive impairment. This long preclinical period provides an opportunity for clinical trials designed to prevent or delay the onset of cognitive impairment due to AD. Under the umbrella of the Alzheimer's Prevention Initiative Generation Program, therapies targeting Aβ, including CNP520 (umibecestat), a β-site-amyloid precursor protein cleaving enzyme-1 (BACE-1) inhibitor, and CAD106, an active Aβ immunotherapy, are in clinical development in preclinical AD. METHODS: ε2/ε4 or ε3/ε4), elevated brain amyloid. Approximately, 3500 individuals will be enrolled in either Generation Study 1 (randomized to cohort 1 [CAD106 injection or placebo, 5:3] or cohort 2 [oral umibecestat 50 mg or placebo, 3:2]) or Generation Study 2 (randomized to oral umibecestat 50 mg and 15 mg, or placebo [2:1:2]). Participants receive treatment for at least 60 months and up to a maximum of 96 months. Primary outcomes include time to event, with event defined as diagnosis of mild cognitive impairment due to AD and/or dementia due to AD, and the Alzheimer's Prevention Initiative preclinical composite cognitive test battery. Secondary endpoints include the Clinical Dementia Rating Sum of Boxes, Repeatable Battery for the Assessment of Neuropsychological Status total score, Everyday Cognition Scale, biomarkers, and brain imaging. DISCUSSION: The Generation Program is designed to assess the efficacy, safety, and biomarker effects of the two treatments in individuals at high risk for AD. It may also provide a plausible test of the amyloid hypothesis and further accelerate the evaluation of AD prevention therapies.

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Crossref · 10.1016/j.trci.2019.02.005

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  • CAD106 is being used in the API Generation trial of APOE ε4 homozygotes.

    “Crenezumab is being used in the API ADAD Colombia trial of known mutation carriers (Tariot et al., 2018), whereas active immunization with CAD106 is being used in the API Generation trial of APOE ε4 homozygotes (Lopez Lopez et al., 2019).”

    From Alzheimer Disease: An Update on Pathobiology and Treatment Strategies (2019) · cites this paper as Lopez Lopez et al., 2019

  • CNP520 was incorporated into one arm of the phase 2/3 API Generation study for secondary prevention in older APOE ε4/ε4 homozygotes.

    “This inhibitor was then incorporated into one arm of the phase 2/3 API Generation study (along with CAD106; see above) for secondary prevention of AD in older APOE ε4/ε4 homozygotes (Lopez Lopez et al., 2019).”

    From Alzheimer Disease: An Update on Pathobiology and Treatment Strategies (2019) · cites this paper as Lopez Lopez et al., 2019

  • γ-secretase inhibitors are no longer regarded as a suitable target for the treatment of Alzheimer's disease due to major safety concerns.

    “γ secretase inhibitors are no longer regarded a suitable target for the treatment of AD due to major safety concerns (Lopez et al., 2019).”

    From An update on the novel and approved drugs for Alzheimer disease (2022) · cites this paper as Lopez et al., 2019

  • ABvac40 is being assessed as the first active vaccine; in a phase 1 trial in Alzheimer's disease patients aged 50 to 85 years, there was no evidence of incident vasogenic edema or microhemorrhages, and antibodies specific to Aβ40 were generated in 92% who had ABvac40 injections.

    “ABvac40 is being assessed as the first active vaccine. AD Patients with aged 50 to 85 years old participated in a phase one trial. There was no evidence of incident vasogenic edema or microhemorrhages. Antibodies specific to Aβ40 were generated in 92 % who had ABvac40 injections (Lopez et al., 2019).”

    From An update on the novel and approved drugs for Alzheimer disease (2022) · cites this paper as Lopez et al., 2019

  • Umibecestat is studied in asymptomatic individuals at risk of developing Alzheimer disease (APOE4 homozygotes or APOE4 heterozygotes with elevated amyloid detected by cerebrospinal fluid biomarkers or amyloid PET).

    “The later agent is studied in asymptomatic individuals at risk of developing AD (APOE4 homozygotes or APOE4 heterozygotes with elevated amyloid, detected by cerebrospinal fluid [CSF] biomarkers or amyloid PET).45”

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Authors
Lopez Lopez, C., Tariot, P. N., Caputo, A., Langbaum, J. B., Liu, F., Riviere, M., Langlois, C., Rouzade‐Dominguez, M., Zalesak, M., Hendrix, S., Thomas, R. G., Viglietta, V., Lenz, R., Ryan, J. M., Graf, A., & Reiman, E. M.
Affiliations
  • Novartis Pharma AG Basel Switzerland
  • Banner Alzheimer’s Institute (US)
  • Novartis (Switzerland) (CH)
  • Novartis (United States) (US)
  • Pentara Corporation Millcreek UT USA
  • University of California San Diego (US)
  • Amgen (United States) (US)
  • Rodin Therapeutics (United States) (US)
Corresponding author
Graf, Ana
Venue
Alzheimer's & Dementia: Translational Research & Clinical Interventions
Publisher
Wiley
Published
2019-01
Volume
5
Issue
1
Pages
216-227
ISSN
2352-8737 (ISSN-L)
OpenAlex
W2950058512
Cited by
116
References
51
Citations by year
2026: 6 · 2025: 14 · 2024: 11 · 2023: 14 · 2022: 24 · 2021: 22 · 2020: 19 · 2019: 6
FWCI
2.09
Type
journal article
Language
en
Open access
Locations
  • Alzheimer s & Dementia Translational Research & Clinical Interventions (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Novartis Pharma
  • Amgen
  • Banner Alzheimer’s Foundation
  • National Institute on Aging (1UF1AG0461501)
  • National Institutes of Health
  • Alzheimer's Association
  • Foundation for Biomedical Research and Innovation
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
Keywords
Alzheimer's disease prevention, preclinical Alzheimer's disease, amyloid-beta, BACE1 inhibitors, amyloid hypothesis, mild cognitive impairment, dementia, APOE ε4, amyloid PET, Clinical Dementia Rating, biomarkers, long-term treatment safety

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