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NCT Number: NCT04171492

Nodify XL2 Classifier Clinical Utility Study in 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.

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This study is active but is not currently recruiting participants.

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Key information

Age range

40 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Calgary, Calgary, Alberta, Canada

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About this study

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.

Who can participate

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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

Exclusion criteria

  • 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

Treatment and study plan

Primary outcomes

  1. Lung Nodule Diagnosis

    Time frame: Up to 24 months

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

Sponsors and collaborators

Lead sponsor

Biodesix, Inc.

Industry

Registry information

Official study 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

Acronym: ALTITUDE

Important dates

Study start
2020
Primary completion
2025
Study completion
2026
First posted
Nov 21, 2019
Registry last updated
Sep 19, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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