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Blood test aims to catch lung cancer earlier in smokers

NCT ID NCT06145750

Diagnosis Sponsor: Delfi Diagnostics Inc. Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether giving doctors access to a blood test called FirstLook increases lung cancer screening rates among people at high risk. The test looks for DNA fragments in the blood that may signal lung cancer. Researchers compared screening rates in practices that could order the blood test versus those that could not.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
FirstLook blood test
What this could lead to
If successful, this blood test could help doctors identify more people with early lung cancer, leading to earlier treatment and better outcomes.
What could go wrong
This is a small, completed study with only 28 participants. The test is not a replacement for CT scans, and its real-world impact on screening rates may be limited.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

28 people

The number who actually took part.

Started

Oct 2023

Finished

Aug 2025

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 80 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Practice offers primary care services. Primary care services may include, but are not limited to: community health centers, academic outpatient facilities, private practices of family or general internal medicine, and Veterans Administration outpatient primary care clinics. 2. Practice has a lung cancer screening population of a minimum of 50 individuals upon first review of patient records. a. Lung cancer screening eligible population is defined as meeting the 2021 USPSTF guideline recommendations (current and former smokers 50-80 years of age, 20 pack year or more smoking history, have not quit more than 15 years ago) b. Individuals have had a clinic visit in the past 12 months, and c. Individuals have not had a CT for lung cancer screening in the last 15 months. 3. Practice can complete EMR data extraction and EDC entry during the study. 4. Practice scores a 4 (agree) or 5 (strongly agree) on a 5-point Likert scale for physical and payer benefit access to LDCT. 5. The practice utilizes conveniently located phlebotomy that accepts same-day services. Exclusion Criteria: 1. Practice is currently participating in other DELFI studies. 2. Practice is actively participating in any other cancer screening blood-based biomarker studies which includes return of results.

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Conditions

The condition(s) this trial relates to.

adenocarcinoma disease lung cancer lung disorder lung neoplasm respiratory system disorder respiratory tract neoplasm Thoracic Neoplasms

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Lung cancer

Contacts and locations

Locations

  • DARTNet Institute

    Aurora, Colorado, 80045, United States

  • Duke University

    Durham, North Carolina, 27705, United States

  • University Of Florida

    Jacksonville, Florida, 32209, United States

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