Overview
flowchart TD
AMYLOID["AMYLOID"] -->|"associated with"| MICROGLIA["MICROGLIA"]
AMYLOID["AMYLOID"] -->|"associated with"| TAU["TAU"]
AMYLOID["AMYLOID"] -->|"associated with"| BACE1["BACE1"]
AMYLOID["AMYLOID"] -->|"associated with"| AUTOPHAGY["AUTOPHAGY"]
AMYLOID["AMYLOID"] -->|"associated with"| APOPTOSIS["APOPTOSIS"]
AMYLOID["AMYLOID"] -->|"associated with"| GFAP["GFAP"]
AMYLOID["AMYLOID"] -->|"associated with"| NEURON["NEURON"]
AMYLOID["AMYLOID"] -->|"associated with"| SOD1["SOD1"]
AMYLOID["AMYLOID"] -->|"associated with"| NLRP3["NLRP3"]
AMYLOID["AMYLOID"] -->|"associated with"| SNCA["SNCA"]
AMYLOID["AMYLOID"] -->|"associated with"| DEPRESSION["DEPRESSION"]
AMYLOID["AMYLOID"] -->|"inhibits"| ALZHEIMER_S_DISEASE["ALZHEIMER'S DISEASE"]
AMYLOID["AMYLOID"] -->|"activates"| GENES["GENES"]
AMYLOID["AMYLOID"] -->|"inhibits"| Alzheimer["Alzheimer"]
style amyloid fill:#4fc3f7,stroke:#333,color:#000This page provides a comprehensive investment landscape analysis for amyloid-targeted therapeutics in Alzheimer’s disease and related neurodegenerative conditions. Amyloid-beta (Abeta) accumulation is a hallmark pathological feature of Alzheimer’s disease, and therapeutic approaches targeting amyloid represent the largest segment of the AD therapeutic pipeline. 1Citation
This analysis is based on clinical trial data from the NeuroWiki Clinical Trials Index, last updated 2026-03-12.
Pipeline Metrics
| Metric | Value |
|---|---|
| Total tracked amyloid-related trials | 667 |
| Active trials (recruiting/active/not-yet-recruiting) | 164 (24.6%) |
| Completed trials | 316 (47.4%) |
| Terminated/Withdrawn | 58 (8.7%) |
| Unknown status | 119 (17.8%) |
Trial Status Distribution
Active vs Historical Summary
| Category | Trial Count | Share |
|---|---|---|
| Active | 164 | 24.6% |
| Recruiting | 99 | 14.8% |
| Not Yet Recruiting | 35 | 5.2% |
| Active Not Recruiting | 30 | 4.5% |
| Historical | 503 | 75.4% |
| Completed | 316 | 47.4% |
| Terminated | 36 | 5.4% |
| Withdrawn | 21 | 3.1% |
| Unknown | 119 | 17.8% |
Phase Distribution
| Phase | Trial Count | Share |
|---|---|---|
| Early Phase 1 | 9 | 1.3% |
| Phase 1 | 53 | 7.9% |
| Phase 1/Phase 2 | 11 | 1.6% |
| Phase 2 | 63 | 9.4% |
| Phase 2/Phase 3 | 5 | 0.7% |
| Phase 3 | 36 | 5.4% |
| Phase 4 | 7 | 1.0% |
| Not Applicable/NA | 483 | 72.4% |
Mechanism Breakdown
Amyloid-targeted therapeutics can be categorized by their mechanism of action:
1. Anti-Aβ Monoclonal Antibodies
The largest mechanism category includes antibodies designed to bind and clear amyloid-beta plaques or soluble oligomers.
Key Programs:
-
Leqembi (Lecanemab) - Eisai/Biogen - Anti-Aβ protofibril antibody, FDA approved
-
Donanemab - Eli Lilly - Anti-Aβ plaque antibody, FDA approved
-
Crenezumab - Roche/Genentech - Anti-Aβ oligomer antibody
-
Gantenerumab - Roche - Anti-Aβ plaque antibody
-
Solanezumab - Eli Lilly - Anti-Aβ soluble antibody
2. Aβ Aggregation Inhibitors
Small molecules designed to prevent the formation of or break down amyloid oligomers and plaques.
Key Programs:
-
Contursi - Neurokine Therapeutics
-
Curcumin derivatives - Multiple researchers
-
NC-002 - New Century Therapeutics
3. BACE Inhibitors
Beta-secretase (BACE) inhibitors block the initial cleavage of APP to produce Aβ.
Note: Several BACE inhibitors have failed in late-stage trials due to safety concerns (verubecestat, atabecestat, CNP520).
4. Gamma Secretase Modulators
Modulators of the gamma secretase enzyme that shift Aβ production toward shorter, less aggregation-prone isoforms.
Key Programs:
-
GSM-17 - Astellas Pharma
-
E2012 - Eisai
5. Aβ Vaccines
Active immunization approaches to induce anti-Aβ antibody production.
Key Programs:
-
ACI-35 - AC Immune/Li-Iyonga - Liposome-based tau vaccine
-
ABvac40 - Araclon Biotech - Aβ40 vaccine
-
CAD106 - Novartis/Cytos Biotechnology - Aβ immunotherapeutic
6. Aβ Degradation Enhancers
Approaches to enhance the clearance of Aβ through enzymatic degradation or cellular clearance mechanisms.
7. PET Imaging Agents
Diagnostic agents for amyloid plaque imaging:
-
Pittsburgh Compound B (PiB) - Research use
-
Florbetapir (Amyvid) - FDA approved for PET imaging
-
Florbetaben (Neuraceq) - FDA approved for PET imaging
-
Flutemetamol (Vizamyl) - FDA approved for PET imaging
Sponsor Landscape
Academic Medical Centers
| Sponsor | Trial Count |
|---|---|
| Institute for Neurodegenerative Disorders | 11 |
| National Taiwan University Hospital | 10 |
| Chang Gung Memorial Hospital | 9 |
| Washington University School of Medicine | 9 |
| University of Pittsburgh | 8 |
| Massachusetts General Hospital | 8 |
Pharmaceutical Companies
| Sponsor | Trial Count |
|---|---|
| Eli Lilly and Company | 9 |
| Affiris AG | 8 |
| Pfizer | 6 |
| Cyclo Therapeutics, Inc. | 6 |
| Eisai | 5 |
| Biogen | 4 |
| Roche | 4 |
| Novartis | 3 |
| AstraZeneca | 2 |
Pipeline Gaps and Opportunities
Unmet Needs
-
Disease-modifying therapies for early intervention - Most advanced programs target moderate-to-severe AD; need for prodromal/preclinical trials
-
Combination approaches - Limited combination therapy signals in current pipeline
-
Biomarker-positive enrichment - Only 9.2% of AD trials include biomarker endpoints
-
Non-antibody modalities - Heavy reliance on monoclonal antibodies; need for small molecule and gene therapy approaches
Opportunity Areas
-
Anti-oligomer-specific antibodies - Targeting toxic soluble oligomers rather than plaques
-
Peripheral sink approaches - Reducing peripheral amyloid to drive brain clearance
-
Multi-target approaches - Combined Aβ/tau targeting
-
Genetic risk stratification - APOE4-enriched trials
Investment Themes
Consolidation Phase
The amyloid therapeutic space has consolidated following the FDA approvals of Leqembi and Donanemab. Investment is shifting toward:
-
Real-world evidence generation - Post-approval studies
-
Early intervention - Preclinical and prodromal AD
-
Biomarker development - Plasma and PET biomarkers for patient selection
Key Challenges
-
Safety monitoring - ARIA (amyloid-related imaging abnormalities) requires careful monitoring
-
Treatment duration - Long-term treatment effects unclear
-
Access and reimbursement - Pricing and coverage decisions pending
Cross-Links to Related Pages
Clinical Trials
For current clinical trials targeting amyloid-beta and related pathways in Alzheimer’s disease, see:
See Also
External Links
References
- [clinical2026]
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