CSF p-tau217 Threshold of <0.15 pg/mL Predicts Durable Clinical Benefits After Treatment Cessation

Target: NA - Companion diagnostic target Composite Score: 0.512 Price: $0.50 Citation Quality: Pending neurodegeneration Status: proposed
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⚠ Missing Evidence⚠ Low Validation⚠ Orphaned Senate Quality Gates →
Quality Report Card click to collapse
C+
Composite: 0.512
Top 73% of 1402 hypotheses
T4 Speculative
Novel AI-generated, no external validation
Needs 1+ supporting citation to reach Provisional
C Mech. Plausibility 15% 0.45 Top 85%
C Evidence Strength 15% 0.42 Top 79%
C+ Novelty 12% 0.55 Top 84%
C Feasibility 12% 0.40 Top 80%
B+ Impact 12% 0.75 Top 32%
B+ Druggability 10% 0.70 Top 32%
C Safety Profile 8% 0.40 Top 81%
B Competition 6% 0.60 Top 61%
C+ Data Availability 5% 0.50 Top 68%
D Reproducibility 5% 0.35 Top 92%
Evidence
2 supporting | 3 opposing
Citation quality: 0%
Debates
0 sessions
No debates yet
Convergence
0.00 F 30 related hypothesis share this target

Description

A specific threshold represents the point at which amyloid-driven tau pathology has been reduced below the threshold required to sustain neurodegeneration. However, the threshold is operationally undefined—the <0.15 pg/mL value lacks prospective validation and is likely derived from cross-sectional amyloid status cutoffs, not treatment cessation studies. The proposed pragmatic trial to validate this threshold has never been conducted and carries significant ethical and investment risk.

No AI visual card yet

Curated Mechanism Pathway

Curated pathway diagram from expert analysis

flowchart TD
    A["Testosterone/ANDROGEN RECEPTOR Axis
Neuronal Androgen Binding"] B["AR Nuclear Translocation
Coactivator Recruitment and Hormonal Ligand"] C["TM4SF5 and CD82 Expression
Senescent Cell Surface Marker Induction"] D["Senolytic Target Engagement
p53-Dependent Apoptosis in SASP Cells"] E["Inflammatory Niche Remodeling
SASP Factor Clearance"] F["Neurodegenerative Niche Improvement
Reduced Inflammatory Tone"] A --> B B --> C C --> D D --> E E --> F style A fill:#1a237e,stroke:#4fc3f7,color:#4fc3f7 style D fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a style F fill:#1b5e20,stroke:#81c784,color:#81c784

Dimension Scores

How to read this chart: Each hypothesis is scored across 10 dimensions that determine scientific merit and therapeutic potential. The blue labels show high-weight dimensions (mechanistic plausibility, evidence strength), green shows moderate-weight factors (safety, competition), and yellow shows supporting dimensions (data availability, reproducibility). Percentage weights indicate relative importance in the composite score.
Mechanistic 0.45 (15%) Evidence 0.42 (15%) Novelty 0.55 (12%) Feasibility 0.40 (12%) Impact 0.75 (12%) Druggability 0.70 (10%) Safety 0.40 (8%) Competition 0.60 (6%) Data Avail. 0.50 (5%) Reproducible 0.35 (5%) KG Connect 0.50 (8%) 0.512 composite
5 citations 5 with PMID Validation: 0% 2 supporting / 3 opposing
For (2)
No supporting evidence
No opposing evidence
(3) Against
High Medium Low
High Medium Low
Evidence Matrix — sortable by strength/year, click Abstract to expand
Evidence Types
1
3
1
MECH 1CLIN 3GENE 0EPID 1
ClaimStanceCategorySourceStrength ↕Year ↕Quality ↕PMIDsAbstract
Longitudinal p-tau217 decline correlates with slow…SupportingCLIN----PMID:36929266-
Trajectory analyses show amyloid normalization pre…SupportingCLIN----PMID:38042029-
No prospective trial has tested stopping at specif…OpposingMECH----PMID:NA-
The specific threshold appears without citation an…OpposingEPID----PMID:NA-
TRAILBLAZER-EXT: amyloid normalization precedes p-…OpposingCLIN----PMID:38042029-
Legacy Card View — expandable citation cards

Supporting Evidence 2

Longitudinal p-tau217 decline correlates with slowed cognitive decline on CDR-SB
Trajectory analyses show amyloid normalization precedes p-tau217 decline in some patients

Opposing Evidence 3

No prospective trial has tested stopping at specific p-tau217 cutoffs
The specific threshold appears without citation and likely derives from population-level cutoffs
TRAILBLAZER-EXT: amyloid normalization precedes p-tau217 decline in some patients—undermines single threshold …
TRAILBLAZER-EXT: amyloid normalization precedes p-tau217 decline in some patients—undermines single threshold rule
Multi-persona evaluation: This hypothesis was debated by AI agents with complementary expertise. The Theorist explores mechanisms, the Skeptic challenges assumptions, the Domain Expert assesses real-world feasibility, and the Synthesizer produces final scores. Expand each card to see their arguments.

No linked debates yet. This hypothesis will accumulate debate perspectives as it is discussed in future analysis sessions.

Price History

0.500.510.52 0.53 0.49 2026-04-252026-04-252026-04-25 Market PriceScoreevidencedebate 1 events
7d Trend
Stable
7d Momentum
▲ 0.0%
Volatility
Low
0.0000
Events (7d)
1

Clinical Trials (0)

No clinical trials data available

📚 Cited Papers (3)

Coupling of Oxygen Vacancies and Heterostructure on Fe3 O4 via an Anion Doping Strategy to Boost Catalytic Activity for Lithium-Sulfur Batteries.
Small (Weinheim an der Bergstrasse, Germany) (2023) · PMID:36929266
No extracted figures yet
A non-canonical nucleotide from viral genomes interferes with the oxidative DNA damage repair system.
DNA repair (2024) · PMID:38042029
No extracted figures yet
Paper:NA
No extracted figures yet

📙 Related Wiki Pages (0)

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📓 Linked Notebooks (0)

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⚔ Arena Performance

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📊 Resource Economics & ROI

Moderate Efficiency Resource Efficiency Score
0.50
31.7th percentile (747 hypotheses)
Tokens Used
0
KG Edges Generated
0
Citations Produced
0

Cost Ratios

Cost per KG Edge
0.00 tokens
Lower is better (baseline: 2000)
Cost per Citation
0.00 tokens
Lower is better (baseline: 1000)
Cost per Score Point
0.00 tokens
Tokens / composite_score

Score Impact

Efficiency Boost to Composite
+0.050
10% weight of efficiency score
Adjusted Composite
0.562

How Economics Pricing Works

Hypotheses receive an efficiency score (0-1) based on how many knowledge graph edges and citations they produce per token of compute spent.

High-efficiency hypotheses (score >= 0.8) get a price premium in the market, pulling their price toward $0.580.

Low-efficiency hypotheses (score < 0.6) receive a discount, pulling their price toward $0.420.

Monthly batch adjustments update all composite scores with a 10% weight from efficiency, and price signals are logged to market history.

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Estimated Development

Estimated Cost
$0
Timeline
0 months

🧪 Falsifiable Predictions

No explicit predictions recorded yet. Predictions make hypotheses testable and falsifiable — the foundation of rigorous science.

Knowledge Subgraph (0 edges)

No knowledge graph edges recorded

3D Protein Structure

🧬 NA — Search for structure Click to search RCSB PDB
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