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Blood test could sharpen lung cancer screening, study says

NCT ID NCT03774758

Diagnosis Sponsor: University of California, San Francisco Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study is testing a blood test that looks for tumor DNA to see if it can more accurately tell whether a lung nodule found on a CT scan is cancer. About 590 people getting lung cancer screening will give blood samples and be followed for 3 years. The goal is to improve how we decide which nodules need further testing, reducing unnecessary procedures.

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.

Participants

About 590 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2017

Expected to finish

Dec 2030

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

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

Who is studied

This is a prospective observational study that will follow patients who undergo lung cancer screening at the San Francisco VA Medical Center, UCSF Medical Center, and the San Francisco General Hospital.

Ages

40 years and older

Sex

Anyone

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: * Age ≥ 40 years * Ability to understand and provide written informed consent * Willingness to comply with study protocols and provide blood samples. * Willingness to complete 3-year clinical follow up Exclusion Criteria: * Active non-cutaneous malignancy within the past 5 years as per medical record or patient report. * Exclusion criteria for possible follow-up visit blood draw: * Anemia - measured by hematocrit level of less than 30%, measured after the first blood draw. * Malnourishment - determined by BMI less than 19. If subject has BMI greater or equal to 19, but has a history of malnourishment, study staff will measure albumin level of subject's blood after initial blood draw. Albumin level must be greater than 2.5 mg per deciliter, or subject will be excluded. * Severe Chronic Obstructive Pulmonary Disease (COPD) - defined by Gold Stage IV. * Unstable heart conditions - defined by stable or unstable angina, recent myocardial infarction (within the last 2 years), active congestive heart failure, ischemic cardiomyopathy, or history of complications because of previous blood donation. * Liver cirrhosis.

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Conditions

The condition(s) this trial relates to.

non-small cell lung carcinoma pulmonary coin lesion

As listed by the trial registrant

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

Nodule solitary pulmonary Non-small cell lung cancer

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    3 sites. The list below names each one and where it is.

  3. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  4. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • San Francisco VA Medical Center

    RECRUITING

    San Francisco, California, 94121, United States

    Contact Email: •••••@•••••

  • University of California, San Francisco

    RECRUITING

    San Francisco, California, 94122, United States

    Contact Email: •••••@•••••

  • Zuckerberg San Francisco General Hospital and Trauma Center

    RECRUITING

    San Francisco, California, 94110, United States

    Contact Email: •••••@•••••

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