Cited by 65Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Long-term extensions of randomized vaccination trials of ACC-001 and QS-21 in mild to moderate Alzheimer’s disease

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Hull, Michael, Sadowsky, Carl, Arai, Heii, Leterme, Ghislaine Le Prince, Holstein, Ann, Booth, Kevin, Peng, Yahong, Yoshiyama, Tamotsu +4 more·2017·Current Alzheimer Research

Abstract

OBJECTIVES: Long-term safety and tolerability of ACC-001 (vanutide cridificar), an antiamyloid- beta therapeutic vaccine, was evaluated in subjects with mild to moderate Alzheimer's disease. DESIGN: Phase 2a extension studies of randomized parent trials were conducted in the United States, European Union, and Japan. METHODS: Four immunizations of ACC-001 were administered at the same 3 dose levels (3, 10, and 30 μg) to subjects randomized in the parent studies; ACC-001 was administered with QS-21 adjuvant. Safety, tolerability, and immunogenicity were assessed during active treatment and 6-month follow-up. RESULTS: ACC-001 + QS-21 was well tolerated in the United States (N=110) and European Union (N=50), and Japan (N=53) extension studies; safety profile was similar to that observed in the parent studies, and no new safety signals were identified. Overall, injection site reactions were the most common adverse event in these studies. Anti-amyloid antibody titers were elicited in all groups, with the highest titers observed in subjects who received ACC-001 + QS-21 in both the parent and extension studies. CONCLUSIONS: Long-term exposure to ACC-001 + QS-21 was well tolerated in subjects with Alzheimer's disease, suggesting that side effects do not pose a principal limitation for anti-amyloid active immunotherapy. The highest anti-amyloid-beta IgG titers are elicited during long-term therapy with ACC-001 + QS-21 compared with other regimens.

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  • A phase 2 research using UB-311, a synthetic peptide utilized as an Aβ vaccine, is now underway in individuals with mild or moderate Alzheimer's disease; it produced a total response rate in phase 1, with swelling at the injection site and agitation as the most common side effects, and patients with mild Alzheimer's disease had a slower rate of cognitive decline.

    “A phase 2 research using UB-311, a synthetic peptide utilized as an Aβ vaccine, is now underway in individuals who are experiencing mild or moderate episodes of AD. It produced a total response rate in AD patients during the phase 1 of clinical trial. Swelling at the injection site and agitation were the most common side effects. Patients with mild AD had a slower rate of cognitive decline (Hull”

    From An update on the novel and approved drugs for Alzheimer disease (2022) · cites this paper as Hull et al., 2017

  • UB-311, a synthetic peptide used as Aβ vaccine, has been advanced into an ongoing phase 2 study in patients with mild and moderate Alzheimer disease; in phase 1, it induced a 100% responder rate, usual adverse effects were swelling at the injection site and agitation, and a slower cognitive decline rate was observed in patients with mild Alzheimer disease.

    “UB-311, a synthetic peptide used as Aβ vaccine, has been advanced into an ongoing phase 2 study in patients with mild and moderate AD. In phase 1, it induced a 100% responder rate in patients with AD. The usual adverse effects were swelling in the injection site and agitation. A slower cognitive decline rate was observed in patients with mild AD.62”
  • Six active immunotherapy agents are currently studied in phase 1, 2, and 3 clinical trials: CAD106, ABvac40, GV1001, ACC-001, UB-311, and Lu AF20513.

    “Six active immunotherapy agents are currently studied in phase 1, 2, and 3 clinical trials:”

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Authors
Hull, M., Sadowsky, C., Arai, H., Leterme, G. L. P., Holstein, A., Booth, K., Peng, Y., Yoshiyama, T., Suzuki, H., Ketter, N., Liu, E., & Ryan, J. M.
Affiliations
  • Palm Beach Neurology (US)
  • Juntendo University (JP)
  • Pfizer (United States) (US)
  • Pfizer (Japan) (JP)
  • Janssen Research & Development (United States) (US)
Venue
Current Alzheimer Research
Published
2017-06-19
Volume
14
Issue
7
Pages
696-708
ISSN
1567-2050 (ISSN-L)
OpenAlex
W2585057996
Cited by
65
References
20
Citations by year
2026: 5 · 2025: 7 · 2024: 8 · 2023: 8 · 2022: 9 · 2021: 9 · 2020: 6 · 2019: 8 · 2018: 4 · 2017: 1
FWCI
3.84
Type
journal article
Language
en
Open access
Locations
  • Current Alzheimer Research (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • University of North Florida Digital Commons (University of North Florida) (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
QS-21 adjuvant, Alzheimer's disease, long-term safety and tolerability, immunogenicity, injection site reactions, extension study
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Dose-Response Relationship, Immunologic, Europe, Female, Humans, International Cooperation, Japan, Longitudinal Studies, Male, Mental Status Schedule, Middle Aged, Recombinant Fusion Proteins, Saponins, United States, Vaccination, Amyloid beta-Peptides, Treatment Outcome

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