Structured registry of Alzheimer's Disease clinical trials with NCT identifiers, source URLs, update timestamps, phase, status, mechanism, intervention, enrollment, and evidence tiers. Covers active recruiting trials, recent Phase 1/2 completions, landmark Phase 3 terminations, and approved treatments. Supersedes the broad unversioned Alzheimer's Association URL pointer (ad-trial-tracker, quality_score 0.40).
| nct_id | TEXT | ClinicalTrials.gov registry identifier (NCT followed by 8 digits) |
| title | TEXT | Official brief title of the clinical trial |
| mechanism | TEXT | Drug mechanism category (e.g., anti-amyloid, anti-tau, neuromodulation, anti-inflammatory, cell therapy) |
| phase | TEXT | Clinical trial phase (Phase 1, Phase 2, Phase 3, Phase 4, Not Applicable) |
| status | TEXT | Overall trial status (RECRUITING, ACTIVE_NOT_RECRUITING, COMPLETED, TERMINATED, WITHDRAWN, NOT_YET_RECRUITING, UNKNOWN) |
| start_date | TEXT | Actual or estimated trial start date (YYYY-MM-DD or YYYY-MM) |
| completion_date | TEXT | Anticipated or actual trial completion date (YYYY-MM-DD or YYYY-MM or blank if ongoing) |
| last_update_date | TEXT | Date of most recent ClinicalTrials.gov posting (YYYY-MM-DD) |
| sponsor | TEXT | Lead sponsor organization name |
| intervention | TEXT | Experimental intervention or drug tested |
| conditions | TEXT | Disease conditions studied |
| enrollment | INTEGER | Planned or actual enrollment count |
| url | TEXT | Direct ClinicalTrials.gov study URL |
| evidence_tier | TEXT | Evidence quality tier: A (peer-reviewed primary data + PMID), B (registry data without PMID), C (minimal info, observati |
| row_citation | TEXT | Primary citation for this trial row (PMID or ClinicalTrials.gov NCT identifier) |
| notes | TEXT | Additional context about trial significance, mechanism, or trial history |