Mahmood Ahmad
Tahir Heart Institute
author@example.com

Protocol: CT.gov Geography-Scale Visibility

This protocol groups eligible older closed interventional ClinicalTrials.gov studies by recorded site and country footprint. Primary outputs compare two-year no-results rates, ghost-protocol rates, and fully visible shares across single-site through 20-plus-site buckets, with secondary country-footprint and phase-specific contrasts. The aim is to test whether larger trial geographies map onto a more visible public record. Because site and country counts are registry-entered metadata, the project measures visible footprint rather than verified operational complexity.

Outside Notes

Type: protocol
Primary estimand: 2-year no-results rate across site-footprint buckets among eligible older CT.gov studies
App: CT.gov Geography-Scale Visibility dashboard
Code: https://github.com/mahmood726-cyber/ctgov-geography-scale-visibility
Date: 2026-03-29
Validation: FULL REGISTRY RUN

References

1. ClinicalTrials.gov API v2. National Library of Medicine. Accessed March 29, 2026.
2. Zarin DA, Tse T, Williams RJ, Carr S. Trial reporting in ClinicalTrials.gov. N Engl J Med. 2016;375(20):1998-2004.
3. DeVito NJ, Bacon S, Goldacre B. Compliance with legal requirement to report clinical trial results on ClinicalTrials.gov: a cohort study. Lancet. 2020;395(10221):361-369.

AI Disclosure

This work represents a compiler-generated evidence micro-publication built from structured registry data and deterministic summary code. AI was used as a constrained coding and drafting assistant for interface generation, packaging, and prose refinement, not as an autonomous author. The analytical choices, interpretation, and final outputs were reviewed by the author, who takes responsibility for the content.