Cited by 102Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeurological Disease Mechanisms and Treatments

Translation of Pre-Clinical Studies into Successful Clinical Trials for Alzheimer’s Disease: What are the Roadblocks and How Can They Be Overcome?

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Banik, Avijit, Brown, Richard E., Bamburg, James, Lahiri, Debomoy K., Khurana, Dheeraj, Friedland, Robert P., Chen, Wei, Ding, Ying +9 more·2015·Journal of Alzheimer’s Disease

Abstract

Preclinical studies are essential for translation to disease treatments and effective use in clinical practice. An undue emphasis on single approaches to Alzheimer’s disease (AD) appears to have retarded the pace of translation in the field, and there is much frustration in the public about the lack of an effective treatment. We critically reviewed past literature (1990–2014), analyzed numerous data, and discussed key issues at a consensus conference on Brain Ageing and Dementia to identify and overcome roadblocks in studies intended for translation. We highlight various factors that influence the translation of preclinical research and highlight specific preclinical strategies that have failed to demonstrate efficacy in clinical trials. The field has been hindered by the domination of the amyloid hypothesis in AD pathogenesis while the causative pathways in disease pathology are widely considered to be multifactorial. Understanding the causative events and mechanisms in the pathogenesis are equally important for translation. Greater efforts are necessary to fill in the gaps and overcome a variety of confounds in the generation, study design, testing, and evaluation of animal models and the application to future novel anti-dementia drug trials. A greater variety of potential disease mechanisms must be entertained to enhance progress.

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Registry

Crossref · 10.3233/jad-150136

Cites

267 of 267 references verified0 citation errors · 0 not checkable

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  • Many AD clinical trials that failed were successful in preclinical testing using animal models.

    “the very high failure rate of clinical trials of AD therapeutics (of ~99.6%), many of which were successful in preclinical testing using these animal models [6, 27, 139]”

    From Alzheimer's disease: experimental models and reality (2017) · cites this paper as [6]

  • The lack of additional AD-associated pathology could at least partly account for the lack of translation between preclinical and clinical trials.

    “This lack of additional AD associated pathology could at least partly account for the lack of translation between preclinical and clinical trials [6], although there have also been a few clinical trial failures for approaches not initially tested in transgenic models[69].”

    From Alzheimer's disease: experimental models and reality (2017) · cites this paper as [6]

  • The failure rate of clinical trials of AD therapeutics is approximately 99.6%.

    “the very high failure rate of clinical trials of AD therapeutics (of ~99.6%), many of which were successful in preclinical testing using these animal models [6, 27, 139]”

    From Alzheimer's disease: experimental models and reality (2017) · cites this paper as [6]

  • The very poor success rate of ~99.6% with AD targeting clinical trials can in part be explained by the premature translation of successful pathology reduction in transgenic mice to humans.

    “The very poor success rate of ~99.6% with AD targeting clinical trials can in part be explained by the premature translation of successful pathology reduction in transgenic mice to humans [6, 27, 139].”

    From Alzheimer's disease: experimental models and reality (2017) · cites this paper as [6]

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Authors
Banik, A., Brown, R. E., Bamburg, J., Lahiri, D. K., Khurana, D., Friedland, R. P., Chen, W., Ding, Y., Mudher, A., Padjen, A. L., Mukaetova-Ladinska, E., Ihara, M., Srivastava, S., Padma Srivastava, M. V., Masters, C. L., Kalaria, R. N., & Anand, A.
Affiliations
  • Post Graduate Institute of Medical Education and Research (IN)
  • Dalhousie University (CA)
  • Colorado State University (US)
  • Indiana University Indianapolis (US)
  • University of Louisville (US)
  • University of Pittsburgh (US)
  • University of Southampton (GB)
  • McGill University (CA)
  • Institute of Neuroscience, Newcastle University, NIHR Biomedical Research Building, Campus for Ageing and Vitality, Newcastle upon Tyne, UK
  • National Cerebral and Cardiovascular Center (JP)
  • Central Drug Research Institute (IN)
  • Department of Neurology, Neurosciences Centre, All India Institute of Medical Sciences, New Delhi, India
  • Mental Health Research Institute (AU)
  • Newcastle University (GB)
Corresponding author
  • Kalaria, Raj N.
  • Anand, Akshay
Venue
Journal of Alzheimer’s Disease
Published
2015-08-11
Volume
47
Issue
4
Pages
815-843
ISSN
  • 1387-2877 (ISSN-L)
  • 1875-8908
OpenAlex
W2177793807
Cited by
102
References
267
Citations by year
2026: 4 · 2025: 9 · 2024: 9 · 2023: 9 · 2022: 14 · 2021: 20 · 2020: 11 · 2019: 10 · 2018: 6 · 2017: 3 · 2016: 6 · 2015: 1
FWCI
0.65
Type
journal article
Language
en
Open access
Locations
  • Journal of Alzheimer s Disease (publishedVersion)
  • PubMed (publishedVersion)
  • Newcastle University ePrints (Newcastle Univesity)
Funders
Japan Society for the Promotion of Science (15H04271)
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 › Neurological Disease Mechanisms and Treatments
Keywords
Alzheimer's disease, translational research
MeSH terms
Alzheimer Disease, Animals, Clinical Trials as Topic, Humans, Translational Research, Biomedical

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