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Alzheimer's trials: A cul-de-sac with no end in sight
Kurkinen M.. Advances in clinical and experimental medicine : official organ Wroclaw Medical University, 2021-07-01
Topic: Amyloid, tau and blood-test diagnosis
We don’t understand Alzheimer, its origin and disease mechanisms. The absence of disease-modifying treatments for Alzheimer today is due to the amyloid hypothesis, a misguided hypothesis of Alzheimer’s disease etiology, which has dominated Alzheimer research, drug development, and clinical trials for 30 years. However, the hypothesis is not dead yet, as exemplified by the recent resurrection of clinical trials with aducanumab.
Key findings
- The absence of disease-modifying treatments for Alzheimer today is due to the amyloid hypothesis, a misguided hypothesis of Alzheimer’s disease etiology, which has dominated Alzheimer research, drug development, and clinical trials for 30 years.
- However, the hypothesis is not dead yet, as exemplified by the recent resurrection of clinical trials with aducanumab.
- Recent advances in Alzheimer research include astrocytes, synaptic function and glutamate signaling.
- Many studies indicate EAAT2 as a promising target in drug discovery and clinical development for novel therapies in Alzheimer’s disease, and other neurologic and psychiatric diseases.
Why it matters
This paper argues that the lack of disease-modifying Alzheimer's treatments today is due to the amyloid hypothesis, which has dominated research, drug development and trials for 30 years. It notes the hypothesis is not dead yet, as shown by the recent resurrection of clinical trials with aducanumab.
New to this subject? Start with our plain-English guide: Treatments →
Study details
- Evidence strengthLow
How this study scored 30/100
Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported, studied in people and randomised / blinded because the record does not state it. We have no data on senior author's track record and institution's track record, so those were left out: it earned 28 of the 93 points we could judge it on, which is 30 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Advances in clinical and experimental medicine : official organ Wroclaw Medical University) |
| Journal's citation record | 0 / 4 | Advances in Clinical and Experimental Medicine: journal h-index 61 (OpenAlex, 2026-10-29) |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 3 / 5 | 2021 — within 6 year(s) of the newest study here |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 2 / 7 | Cited 10 times (OpenAlex, 2026-10-10) |
| Citations per year | 1 / 5 | 1.4 citations a year over 7 year(s) since 2021 |
| Impact for its field and year | 2 / 6 | Cited 1.0× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 0 / 6 | No other study in this library cites it |
| Still being cited | 0 / 4 | Cited 2 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | — / 4 | Senior author's record not available — left out of this score |
| Institution's track record | — / 3 | No institution listed in OpenAlex — left out of this score |
| Multi-centre collaboration | 0 / 3 | OpenAlex lists 0 institution(s) in 0 countries — scores zero (affiliation lists can be incomplete) |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 34313409) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 28 / 93 | Scored on 18 of 20 parts. We have no data for the rest, so they are left out: 28 of the 93 points we could judge it on is 30 out of 100. |
| Total | 30 / 100 | — |
What each of these 20 components measures, and what this score is not →
Read the original
- DOI: 10.17219/acem/139501
- PubMed: 34313409
- Original source →
- Free full text: Advances in Clinical and Experimental Medicine →
Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. Check the citation against the original before you use it.
APA 7th
Kurkinen, M. (2021). Alzheimer's trials: A cul-de-sac with no end in sight. Advances in clinical and experimental medicine : official organ Wroclaw Medical University. https://doi.org/10.17219/acem/139501
Vancouver
Kurkinen M. Alzheimer's trials: A cul-de-sac with no end in sight. Advances in clinical and experimental medicine : official organ Wroclaw Medical University. 2021. doi:10.17219/acem/139501. PMID: 34313409.
BibTeX
@article{kurkinen2021-34313409,
author = {Kurkinen, M.},
title = {{Alzheimer's trials: A cul-de-sac with no end in sight}},
journal = {Advances in clinical and experimental medicine : official organ Wroclaw Medical University},
year = {2021},
doi = {10.17219/acem/139501},
pmid = {34313409},
url = {https://doi.org/10.17219/acem/139501}
}
Studies this one cites
Referenced by this study and also in the alzhub library, so you can read them here.
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