The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
Why do trials for Alzheimer’s disease drugs keep failing? A discontinued drug perspective for 2010-2015
Open accessAbstract
INTRODUCTION: There are dozens of drugs in development for AD with billions of dollars invested. Despite the massive investment in AD drugs and a burgeoning pipeline, there have been more setbacks and failures than treatment successes. Areas covered: The classes of drugs that have failed to date include the monoclonal antibodies, the gamma secretase inhibitors, dimebon, neurochemical enhancers, and one tau drug. Data for these compounds were sought through a PubMed search and a clinicaltrials.gov search. Expert opinion: The obvious question to be posed is: Why are they failing? Is the treatment of symptomatic dementia too late? Are the therapeutic targets incorrect? Are the clinical methodologies imprecise, misleading, or inaccurate? This review summarizes the drugs that have failed during 2010-2015 and offers possible theories as to why they have failed.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Kok, J. S., Berg, I. J., & Scherder, E. J. A. (2013) · Dementia and Geriatric Cognitive Disorders Extra · doi:10.1159/000353441 · Cited by 20,589
A new rating scale for Alzheimer's disease
(1984) · American Journal of Psychiatry · doi:10.1176/ajp.141.11.1356 · Cited by 4,175
Nelson, P. T., Alafuzoff, I., Bigio, E. H., Bouras, C., Braak, H., Cairns, N. J., Castellani, R. J., Crain, B. J., Davies, P., Tredici, K. D., et al. (2012) · Journal of Neuropathology & Experimental Neurology · doi:10.1097/nen.0b013e31825018f7 · Cited by 2,050 · cited 1×
“There is extensive evidence that tangle accumulation correlates more reliably with clinical progression than amyloid [18].”
Two Phase 3 Trials of Bapineuzumab in Mild-to-Moderate Alzheimer's Disease
Salloway, S., Sperling, R., Fox, N. C., Blennow, K., Klunk, W., Raskind, M., Sabbagh, M., Honig, L. S., Porsteinsson, A. P., Ferris, S., et al. (2014) · New England Journal of Medicine · doi:10.1056/nejmoa1304839 · Cited by 1,960
Self-citationPhase 3 Trials of Solanezumab for Mild-to-Moderate Alzheimer's Disease
Doody, R. S., Thomas, R. G., Farlow, M., Iwatsubo, T., Vellas, B., Joffe, S., Kieburtz, K., Raman, R., Sun, X., Aisen, P. S., et al. (2014) · New England Journal of Medicine · doi:10.1056/nejmoa1312889 · Cited by 1,668
A Phase 3 Trial of Semagacestat for Treatment of Alzheimer's Disease
Doody, R. S., Raman, R., Farlow, M., Iwatsubo, T., Vellas, B., Joffe, S., Kieburtz, K., He, F., Sun, X., Thomas, R. G., et al. (2013) · New England Journal of Medicine · doi:10.1056/nejmoa1210951 · Cited by 1,224
A Double-Blind, Placebo-Controlled Multicenter Study of Tacrine for Alzheimer's Disease
Davis, K. L., Thal, L. J., Gamzu, E. R., Davis, C. S., Woolson, R. F., Gracon, S. I., Drachman, D. A., Schneider, L. S., Whitehouse, P. J., Hoover, T. M., et al. (1992) · New England Journal of Medicine · doi:10.1056/nejm199210293271801 · Cited by 626
Mechanism of amyloid removal in patients with Alzheimer disease treated with gantenerumab
Ostrowitzki, S. (2012) · Archives of Neurology · doi:10.1001/archneurol.2011.1538 · Cited by 431 · cited 1×
“It is hypothesized that increasing the dose may show a beneficial effect on patients [20].”
Gauthier, S., Feldman, H. H., Schneider, L. S., Wilcock, G. K., Frisoni, G. B., Hardlund, J. H., Moebius, H. J., Bentham, P., Kook, K. A., Wischik, D. J., et al. (2016) · The Lancet · doi:10.1016/s0140-6736(16)31275-2 · Cited by 427
Coric, V., van Dyck, C. H., Salloway, S., Andreasen, N., Brody, M., Richter, R. W., Soininen, H., Thein, S., Shiovitz, T., Pilcher, G., et al. (2012) · Archives of Neurology · doi:10.1001/archneurol.2012.2194 · Cited by 374
Cited by
Simpson, D. S. A., & Oliver, P. L. (2020) · Antioxidants · doi:10.3390/antiox9080743 · Cited by 1,044
Cellular senescence in brain aging and neurodegenerative diseases: evidence and perspectives
Baker, D. J., & Petersen, R. C. (2018) · Journal of Clinical Investigation · doi:10.1172/jci95145 · Cited by 514
Synaptic degeneration in Alzheimer disease
Tzioras, M., McGeachan, R. I., Durrant, C. S., & Spires-Jones, T. L. (2023) · Nature Reviews Neurology · doi:10.1038/s41582-022-00749-z · Cited by 504
Nativio, R., Lan, Y., Donahue, G., Sidoli, S., Berson, A., Srinivasan, A. R., Shcherbakova, O., Amlie-Wolf, A., Nie, J., Cui, X., et al. (2020) · Nature Genetics · doi:10.1038/s41588-020-0696-0 · Cited by 380
Amyloid Beta in Aging and Alzheimer’s Disease
Sehar, U., Rawat, P., Reddy, A. P., Kopel, J., & Reddy, P. H. (2022) · International Journal of Molecular Sciences · doi:10.3390/ijms232112924 · Cited by 361
Metadata
- Authors
- Mehta, D., Jackson, R., Paul, G., Shi, J., & Sabbagh, M.
- Venue
- Expert Opinion on Investigational Drugs
- Publisher
- Informa UK Limited
- Published
- 2017-05-02
- Volume
- 26
- Issue
- 6
- Pages
- 735-739
- ISSN
- 1354-3784 (ISSN-L)
- 1744-7658
- OpenAlex
- W2610795807
- Cited by
- 607
- References
- 25
- FWCI
- 37.25
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Why do trials for Alzheimer’s disease drugs keep failing? A discontinued drug perspective for 2010-2015. https://app.cochat.ai/papers/10.1080/13543784.2017.1323868
- The paper
- Mehta, D., Jackson, R., Paul, G., Shi, J., & Sabbagh, M. (2017). Why do trials for Alzheimer’s disease drugs keep failing? A discontinued drug perspective for 2010-2015. Expert Opinion on Investigational Drugs. https://doi.org/10.1080/13543784.2017.1323868
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.