CT.gov Cardiovascular Hiddenness
2026-03-29 | full-registry ct.gov audit | plots, figures, and e156 bundle
Series
Cardiovascular Dashboard

Cardiovascular hiddenness becomes clearer when sponsor class, phase structure, and stock are separated

The cardiovascular dashboard isolates family-specific sponsor mix, phase mix, and leading sponsors rather than folding them into an all-registry average.

Sponsor classes
Phases
Top sponsors
Family-specific stock

Dashboard

The cardiovascular page separates sponsor mix, phase mix, and raw stock so the family does not collapse into a single score.

How to read the dashboard
Eligible older
26,062
Cardiovascular studies
No-results rate
75.0%
2-year no-results
Largest phase bucket
13,817
nan
Top sponsor stock
144
Assistance Publique - Hôpitaux de Paris
Sponsor-class rates
CARDIOVASCULAR SPONSOR CLASSES2-year no-results rate by sponsor class within cardiovascular studiesOTHER_GOV96.2%NETWORK92.2%OTHER82.1%NIH70.9%INDUSTRY57.1%FED43.1%
OTHER_GOV remains near the top where present, but the broader cardiovascular burden is still shaped by the much larger OTHER and INDUSTRY blocks.
This is a family-specific rate view, so it should be read alongside the top-sponsor stock chart rather than as a standalone leaderboard.
Phase pattern
CARDIOVASCULAR PHASES2-year no-results rate by phase inside the cardiovascular familyPHASE183.6%EARLY_PHASE182.7%nan81.6%PHASE2 | PHASE371.8%PHASE470.8%PHASE1 | PHASE266.1%PHASE359.5%PHASE258.9%
PHASE1 is the quietest major phase inside the cardiovascular family on the no-results metric.
Phase structure matters because the family-level average can hide very different early-phase and late-phase behavior.
Largest sponsor stocks
CARDIOVASCULAR TOP SPONSORSLead sponsors with the largest missing-results stock inside cardiovascular studiesAssistance Publique - Hôpitaux de Paris144Yonsei University138Mayo Clinic126Riphah International University121Seoul National University Hospital114Boehringer Ingelheim101Novartis99Cairo University93Abbott Medical Devices89AstraZeneca87
Assistance Publique - Hôpitaux de Paris carries the largest named missing-results stock in this family at 144 studies.
The top-sponsor chart makes the family-specific backlog concrete instead of leaving it as a single family-wide percentage.
Read Across Projects

Across The Series

Each project isolates a different dimension of registry opacity, but the point is the contrast between them, not a single leaderboard.

Industry
CT.gov Industry Disclosure Gap

Industry-focused missing-results stock, sponsor backlogs, and structural sparsity inside CT.gov.

Sponsor Classes
CT.gov Sponsor-Class Hiddenness

Sponsor-class comparisons on rate, stock, and structural hiddenness rather than one flattened ranking.

Phases
CT.gov Phase Reporting Gap

Phase-by-phase disclosure gaps showing how silence changes along the development pathway.

Structural
CT.gov Structural Missingness

Field-level missingness across publication links, IPD statements, descriptions, and locations.

Visibility
CT.gov Evidence Visibility Gap

Results-plus-publication visibility states showing how many older trials are fully visible, partly visible, or ghosted.

Cohorts
CT.gov Completion Cohort Debt

Completion-era reporting debt showing how older eligible cohorts drift on no-results and ghost-protocol rates.

Conditions
CT.gov Condition Hiddenness Map

Keyword-classified therapeutic-area hiddenness mapping across common condition families.

Concentration
CT.gov Sponsor Backlog Concentration

Concentration and inequality analysis showing how much unresolved stock sits inside a thin sponsor slice.

Rule Eras
CT.gov Rule-Era Reporting Gap

Policy-era comparisons across pre-FDAAA, FDAAA, and later CT.gov completion cohorts.

PubMed Audit
CT.gov Publication Undercount Audit

Sample-based external PubMed NCT audit testing how often CT.gov no-link records hide an external paper trail.

Oncology
CT.gov Oncology Hiddenness

Oncology-specific CT.gov hiddenness showing where cancer-trial stock, phases, and sponsors still go quiet.

Metabolic
CT.gov Metabolic Hiddenness

Metabolic CT.gov hiddenness across obesity, diabetes, and related trial portfolios with large late-phase and NA stock.