Mahmood Ahmad
Tahir Heart Institute
author@example.com

Protocol: CT.gov Sponsor-Class Hiddenness

This protocol compares sponsor classes across the full March 29, 2026 ClinicalTrials.gov registry snapshot rather than focusing on one sector. The main comparison set is the 290,524 closed interventional studies, with the 249,507 studies at least two years past primary completion driving the primary estimand. The project estimates rate-based 2-year no-results gaps, absolute missing-results stock, and structural sparsity indicators by sponsor class. Interpretation is explicitly multi-axis, because the class with the worst rate is not the same as the class with the largest unresolved stock.

Outside Notes

Type: protocol
Primary estimand: Sponsor-class comparison of eligible 2-year no-results rate and absolute missing-results stock
App: CT.gov Sponsor-Class Hiddenness dashboard
Code: https://github.com/mahmood726-cyber/ctgov-sponsor-class-hiddenness
Date: 2026-03-29
Validation: FULL REGISTRY RUN

References

1. ClinicalTrials.gov API v2. National Library of Medicine. Accessed March 29, 2026.
2. Page MJ, McKenzie JE, Bossuyt PM, et al. The PRISMA 2020 statement. BMJ. 2021;372:n71.
3. Borenstein M, Hedges LV, Higgins JPT, Rothstein HR. Introduction to Meta-Analysis. 2nd ed. Wiley; 2021.

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.