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Nodule Solitary PulmonaryALTITUDENCT04171492

Nodify XL2 Classifier Clinical Utility Study in Low to Moderate Risk Lung Nodules

An observational study of Nodule Solitary Pulmonary and Non-small Cell Carcinoma, run by Biodesix, Inc. at 25 sites in 2 countries.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This study evaluates the how addition of the Nodify XL2 test result impacts the clinical management of newly identified solid lung nodules assessed as low to moderate risk of cancer. Read more about this study

Who is it for?
Ages 40 years and older
How many people
2,000 participants
Where
25 sitesin 2 countries
Study dates
18 Dec 2020to Dec 2026
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 years and older
  • All sexes
  • Adult, Older adult

Study population: Subjects with newly identified, solid lung nodule determined to be low-moderate risk of cancer.

Who may be able to join

  • Subject has provided informed consent to participate in the study and agrees to comply with all protocol requirements
  • Subject is > 40 years of age at the time of the discovery of the lung nodule of concern
  • Subject's lung nodule of concern meets the following:
  • Was incidentally identified or detected during lung cancer screening
  • Is a solid nodule
  • Has maximal dimension of > 8mm and < 30mm
  • The first CT scan identifying the lung nodule of concern was performed within 60 days of subject enrollment
  • The pre-test risk of cancer as determined by the Mayo risk prediction algorithm is 65% or less

Who cannot join

  • Nodule work-up at the time of subject enrollment indicating any prior attempted or completed diagnostic biopsy procedure or blood-based testing for the lung nodule of concern
  • Nodule of concern is part-solid or Ground Glass Opacity (GGO)
  • Prior diagnosis of lung cancer
  • Any active cancer within 5-years of nodule detection, with the exception of non-melanoma skin cancer
  • Administration of blood products (i.e. packed red blood cells, fresh frozen plasma, or platelets) within 30 days of subject enrollment
  • Concurrent participation in any unrelated clinical trial that may impact or alter the management of the subject's nodule of concern
  • Any illness or factor that will inhibit compliance with study participation

Trial locations and contacts

25 sites in 2 countries.

25 sites in 2 countries

United States23 sites
  • University of Michigan

    Ann Arbor, Michigan, 48109

  • University of Colorado

    Aurora, Colorado, 80045

  • The Johns Hopkins University

    Baltimore, Maryland, 21205

  • Massachusetts General Hospital

    Boston, Connecticut, 02114

  • Beth Israel Deaconess

    Boston, Connecticut, 02215

  • The University of North Carolina

    Chapel Hill, North Carolina, 27599

  • Ralph H Johnson VA Medical Center

    Charleston, South Carolina, 29401

  • Medical University of South Carolina

    Charleston, South Carolina, 29425

  • Cleveland Clinic

    Cleveland, Ohio, 44195

  • The Ohio State University

    Coulmbus, Ohio, 43210

  • University of Texas Southwestern

    Dallas, Texas, 75390

  • Duke University

    Durham, North Carolina, 27705

  • University of Texas Medical Branch

    Galveston, Texas, 77555

  • Prisma Health

    Greenville, South Carolina, 29605

  • Indiana University

    Indianapolis, Indiana, 46202

  • Mount Sinai Health System

    New York, New York, 10029

  • Northwell Health

    New York, New York, 11042

  • The Oregon Clinic

    Portland, Oregon, 97220

  • Virginia Commonwealth University

    Richmond, Virginia, 23219

  • Mayo Clinic

    Rochester, Minnesota, 55905

  • The Washington University

    St Louis, Missouri, 63110

  • MedStar

    Washington D.C., District of Columbia, 20010

  • Southeastern Research Center

    Winston-Salem, North Carolina, 27103

Other trials in United States

Canada2 sites
  • University of Calgary

    Calgary, Alberta, T2W 1S7

  • McGill University Health Centre

    Montreal, Quebec, H3H 2R9

Other trials in Canada

About this study

Official title: A Multicenter, Randomized Controlled Trial, Prospectively Evaluating the Clinical Utility of the Nodify XL2 Proteomic Classifier in Incidentally Discovered Low to Moderate Risk Lung Nodules

This study evaluates the how addition of the Nodify XL2 test result impacts the clinical management of newly identified solid lung nodules assessed as low to moderate risk of cancer.

Read the detailed description

A multicenter, randomized controlled study with a blinded control arm. Open label arm is observational for lung nodule management. The clinical trial will evaluate the clinical utility of the Nodify XL2 integrated classifier when used in the clinical management of newly identified solid lung nodules assessed as < 50% risk of cancer by Mayo risk prediction algorithm.

Medical subject headings
Solitary Pulmonary Nodule

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04171492
Study groupRoleWhat they receive
Open LabelNodify XL2 results will be reported to the investigator and available to the subject.
BlindedNodify XL2 results will not be available to the investigative site or subject.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Lung Nodule Diagnosis

    Malignant diagnosis through histology/pathology or benign diagnosis through histology/pathology, radiologic stability or radiologic confirmation of nodule resolution

    Measured: Up to 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Nov 2019
  2. Study start18 Dec 2020
  3. Primary completionDec 2025 (estimated)
  4. Study completionDec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
2,000 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04171492
Sponsor's protocol ID
BDX-CD-003
Acronym
ALTITUDE
Status last verified
Sep 2025
First submitted
19 Nov 2019
Last updated
19 Sep 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Nodule Solitary Pulmonary and Non-small Cell Carcinoma, run by Biodesix, Inc. at 25 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 19 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 25 sites in United States, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Lung Nodule Diagnosis (time frame: Up to 24 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Sep 2025.

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