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Completed

NCT Number: NCT04825834

DNA Evaluation of Fragments for Early Interception - Lung Cancer Training Study (DELFI-L101 Study)

The primary objective of this study, DELFI-L101, is to train and test classifiers for lung cancer detection using the DELFI assay and other biomarker and clinical features.

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Key information

About this study

Subjects will be enrolled into the DELFI-L101 study after informed consent and eligibility is confirmed. At enrollment, subjects will have blood specimens collected (~40 mL) and 12 months post-enrollment their medical records will be reviewed.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

All Participants:

  • Ability to understand and provide written informed consent
  • Age ≥ 50 years
  • Current or Former Smoker
  • ≥ 20 pack-years (pack years = number of packs per day X number of years smoked)

Inclusion Group 1: High Risk Patients that meet criteria 5 and 6 below:

  • Prior thoracic imaging with computed tomography (CT) within 12 months of enrollment (CT imaging for lung cancer screening for participants meeting inclusion criteria 6a and 6b; or CT imaging for lung cancer screening or diagnostic CT for participants meeting inclusion criteria 6c)

OR Planned thoracic imaging (CT) as part of standard of care within 6 weeks of enrollment (CT imaging for lung cancer screening for participants meeting inclusion criteria 6a and 6b; or CT imaging for lung cancer screening or diagnostic CT for participants meeting inclusion criteria 6c)

AND

  • Meet one of the criteria below:
  • No suspected or confirmed lung cancer diagnosis OR
  • Suspected of lung cancer OR
  • Confirmed, untreated lung cancer

Inclusion Group 2: High Risk Patients that meet the following criteria:

  • Pathologic confirmed, invasive non-lung cancer diagnosis, originating from the esophagus (upper), colon or rectum, pancreas, stomach (including lower esophagus), head and neck, skin (excluding cutaneous basal cell and squamous cell carcinoma) kidney, or liver, with no prior systemic therapy, definitive therapy, radiation, or surgical resection.

OR Clinically confirmed invasive non-lung cancer diagnosis originating from the pancreas, kidney, or liver, based on imaging and clinical judgment with planned treatment and no prior systemic therapy, definitive therapy, radiation, or surgical resection.

OR Clinically (based on imaging and clinical judgment) or pathologically confirmed non-invasive or invasive bladder cancer with planned treatment and no prior systemic therapy, definitive therapy, radiation or surgical resection.

Exclusion criteria

All Participants:

  • Prior systemic therapy, definitive therapy, radiation, or surgical resection for cancer within one year prior to enrollment (with the exception of organ biopsies or surgery for non-melanoma skin cancer)
  • Any history of hematologic malignancies or myelodysplasia
  • Any history of organ tissue transplantation
  • Any history of blood product transfusion
  • Current pregnancy
  • Any condition that in the opinion of the Investigator should preclude the participant's participation in the study
  • Prior systemic therapy, definitive therapy, radiation, or surgical resection for the enrollment cancer diagnosis (with the exception of organ biopsies or surgery for non-melanoma skin cancer are not exclusionary)
  • Enrollment in any DELFI sponsored study

Treatment and study plan

Blood Sample Collection

Other

Subjects enrolled in the DELFI-L101 will have blood specimens collected (~40 mL) at enrollment.

Primary outcomes

  1. Accuracy of lung cancer detection measured by sensitivity, specificity, and the AUC of the ROC.

    Time frame: Approximately 12 months

Secondary outcomes

  1. Accuracy (sensitivity and specificity) in clinical subgroups of interest

    Time frame: Approximately 12 months

  2. Prevalence-based measures, including positive predictive value (PPV), negative predictive value (NPV), and number needed to screen (NNS)

    Time frame: Approximately 12 months

  3. Accuracy of tumor of origin (confusion matrix of predicted versus actual cancer type)

    Time frame: Approximately 12 months

  4. Adverse events (AEs) associated with the blood specimen collection

    Time frame: Point in time of blood specimen collection (1day) at enrollment

  5. Expected distribution of the DELFI score in the intended use population and clinical subgroups of interest

    Time frame: Approximately 12 months

  6. Association of genomic features with clinical subgroups of interest

    Time frame: Approximately 12 months

  7. Analytical performance (e.g. repeatability/reproducibility)

    Time frame: Approximately 12 months

  8. Accuracy of multi-cancer detection measured by sensitivity, specificity, and the AUC of the ROC and tissue of origin (TOO) accuracy

    Time frame: Approximately 12 months

Sponsors and collaborators

Lead sponsor

Delfi Diagnostics Inc.

Industry

Registry information

Acronym: DELFI-L101

Important dates

Study start
2021
Primary completion
2025
Study completion
2025
First posted
Apr 1, 2021
Registry last updated
Aug 8, 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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