Completed PHASE3 INTERVENTIONAL 2-arm NCT00047385

National Lung Screening Trial (NLST) Screening (NLST)

National Lung Screening Trial A Randomized Trial Comparing Low-dose Helical CT With Chest Xray for Lung Cancer

Sponsor: American College of Radiology Imaging Network

Interventions chest radiography low-dose helical computed tomography

Updated 7 times since 2017 Last updated: May 2, 2014 Started: Aug 31, 2002 Primary completion: Oct 31, 2010 Completion: Oct 31, 2010

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE3 trial investigates Lung Cancer and is currently completed. American College of Radiology Imaging Network leads this study, which shows 7 recorded versions since 2002 — indicating limited longitudinal coverage. As an oncology study, it adds to the longitudinal record of treatment development for this indication.

Status Flow

Change History

7 versions recorded

Sep 2025 — Present [monthly]

Completed PHASE3
Sep 2024 — Sep 2025 [monthly]

Completed PHASE3
Jul 2024 — Sep 2024 [monthly]

Completed PHASE3
Dec 2021 — Jul 2024 [monthly]

Completed PHASE3
Jan 2021 — Dec 2021 [monthly]

Completed PHASE3

▶ Show 2 earlier versions

Jun 2018 — Jan 2021 [monthly]

Completed PHASE3
Jan 2017 — Jun 2018 [monthly]

Completed PHASE3

First recorded

Aug 2002

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

American College of Radiology Imaging Network
National Cancer Institute (NCI)

Data source: National Cancer Institute (NCI)

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

Ann Arbor, United States , Atlanta, United States , Baltimore, United States , Birmingham, United States , Boston, United States , Charleston, United States , Chicago, United States , Denver, United States , Detroit, United States , Hamilton, United States and 22 more locations