ClinicalTrials.gg
Not yet recruitingNCT07898241Updated Oct 27, 2026

Using an Artificial Intelligence Software Tool (iSeg) During Radiation Treatment Planning for Patients With Lung Tumors

An interventional study of Artificial Intelligence-based Intervention and Best Practice in Lung Carcinoma, Lung Non-Small Cell Carcinoma and Metastatic Malignant Neoplasm in the Lung, sponsored by Northwestern University. Not yet recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-27.

Sponsored by Northwestern University · Not applicable, Interventional, and Treatment

Updated Oct 27, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
34
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 15 studies in Lung Neoplasms by Northwestern University — 4 open to participants now, 5 under way, none of them phase 3. Lung Neoplasms · Northwestern University.

Planned enrollment
7th of 10
34 · median 37
Started
2027
the only one that year
No phase
2 of 15
2 open now
Registered
15th of 15
by date

Among the 15 studies in Lung Neoplasms by Northwestern University, this one is the 7th largest by planned enrollment of the 10 interventional ones, is the only one that started in 2027, is one of 2 with no phase, and was the 15th registered.

By phase

15 studies; the count open now beside each. This study's row is marked.

Phase 25 · 1 open
Phase 14 · 0 open
Phase 1/23 · 0 open
No phasethis study2 · 2 open
Observational1 · 1 open

By the year they started

First in 1999; this study’s year is marked. 1 started in 2027.

Size and results

Median enrollment 37 across the 10 interventional studies, 125 across the 1 observational. Of the 9 that completed or were terminated, 1 (11%) have results posted.

Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 15 studies in Lung Neoplasms by Northwestern University, or all of them as a file.
02

Study summary

This clinical trial studies whether an artificial intelligence (AI) software tool called iSeg can be safely and effectively used during routine radiation treatment planning for patients with lung tumors. Typical radiation treatment planning involves physicians manually outlining the tumors to plan where the radiation therapy will be delivered. This process can be time consuming and may vary between physicians. iSeg uses AI to analyze computed tomography (CT) images and generate a proposed tumor outline that can then be reviewed and modified by the treating physician during radiation treatment planning which may help improve accuracy and provide more consistent results and better planning. iSeg may be safe and effective to use during radiation treatment planning for patients with lung tumors.

Read the detailed description

PRIMARY OBJECTIVES:

I. To assess contouring time for physician versus iSeg workflows for early-stage non-small cell lung cancer (NSCLC) and patients with oligo-metastatic disease to the lung.

II. To assess preliminary efficacy of integrating iSeg into standard-of-care radiotherapy for early-stage non-small cell lung cancer (NSCLC) and patients with oligo-metastatic disease to the lung.

SECONDARY OBJECTIVES:

I. To evaluate progression local control (LC) in patients receiving individualized segmentation to the lung as recommended by iSeg.

II. To evaluate progression free survival (PFS) in patients receiving individualized segmentation to the lung as recommended by iSeg.

III. To assess toxicity in patients receiving individualized segmentation as recommended by iSeg.

IV. To assess toxicity per Common Terminology Criteria for Adverse Events (CTCAE) version (v) 6.0 in patients receiving individualized segmentation as recommended by iSeg.

V. Implementation feasibility of AI-assisted segmentation.

OUTLINE:

Patients undergo CT with standard of care radiation planning as well as physician and AI-directed segmentation of the tumor on study. One to two weeks later, patients undergo stereotactic body radiation therapy (SBRT) over 1-2 weeks in the absence of disease progression or unacceptable toxicity. Patients also undergo additional CT throughout the study and may undergo positron emission tomography (PET)/CT as clinically indicated throughout the study.

After completion of study treatment, patients are followed up at 30 days, 3 months, 6 months, 9 months, and 12 months.

03

Conditions studied

  • Lung Carcinoma
  • Lung Non-Small Cell Carcinoma
  • Metastatic Malignant Neoplasm in the Lung
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients with radiographic findings consistent with lung cancer or solitary or oligo- disease in the lung. Most patients will have primary non-small cell lung cancer. For primary lung cancers, we include lesions with ground glass opacities with a solid component of 50% or greater. Patients with solitary or oligo-metastatic disease in the lung may have any other histology or cancer type
  • Patients must have radiographically measurable or evaluable disease per (RECIST) v.1.1
  • Patients must be age ≥ 18 years
  • Patients must exhibit an (ECOG) performance status of 0-2
  • Patients of (POCBP) must have a negative urine or serum pregnancy test prior to registration on study

    • NOTE: A POCBP is any person with an egg-producing reproductive tract (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria:

      • Has not undergone a hysterectomy or bilateral oophorectomy
      • Has had menses at any time in the preceding 12 consecutive months (and therefore has not been naturally for > 12 months)
  • Radiation therapy is known to be teratogenic. Patients of child-bearing potential (POCBP) must agree to use adequate (hormonal or barrier method of birth control; abstinence) from time of , for the duration of study participation, and for 7 days following completion of therapy. Should a patient become pregnant or suspect they are pregnant while they or their partner are participating in this study, they should inform their treating physician immediately. People who can impregnate their partners treated or enrolled on this protocol must also agree to use adequate contraception from time of informed consent, for the duration of study participation, and 90 days after completion of administration
  • Patients must have the ability to understand and the willingness to sign a written informed consent document. Informed consent must be signed prior to registration on study

Exclusion criteria

Exclusion Criteria:

  • Patients who have had prior radiotherapy with radiation field overlap
  • For primary lung cancers, patients with ground glass opacities without a solid component will be excluded
  • For oligo- cancers, patients with oligo-persistent disease are excluded
  • Patients who have not recovered from adverse events confined to the thorax (i.e. pneumonitis, bronchial insufficiency, bronchial hemorrhage, esophagitis) due to prior anti-cancer therapy (i.e., have residual toxicities ≥ grade 2) with the exception of alopecia, skin toxicity, low blood counts (neutropenia, anemia, etc), or anatomically distinct toxicities (i.e. cystitis)
  • Patients who are receiving any other concurrent agents or genotoxic chemotherapy for cancer treatment

    • NOTE: Patients receiving targeted therapies are permitted to enroll in the study. However, patients must pause treatment with targeted therapy 3 days prior to SBRT and restart medication at least 2 days after SBRT. Concurrent immunotherapy (if not investigational) is permitted. Coronavirus disease 2019 (COVID-19) vaccinations are allowed
  • Patients with a prior or concurrent whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen. Patients who have an uncontrolled intercurrent illness including, but not limited to any of the following, are not eligible:

    • Ongoing or active infection requiring systemic treatment
    • Unstable angina pectoris
    • Stage 3 or greater idiopathic pulmonary fibrosis
    • Cardiac arrhythmia
    • Psychiatric illness/social situations that would limit compliance with study requirements
    • Any other illness or condition that the treating investigator feels would interfere with study compliance or would compromise the patient's safety or study endpoints
  • Female patients who are pregnant or nursing. Pregnant women are excluded from this study because radiation therapy has teratogenic or abortifacient effects
Terms in these criteria, in plain language(9)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
34 participants (estimated)

Study arms

  • Experimental
    Treatment (iSeg, SBRT)

    Patients undergo CT with standard of care radiation planning as well as physician and AI-directed segmentation of the tumor on study. One to two weeks later, patients undergo SBRT over 1-2 weeks in the absence of disease progression or unacceptable toxicity. Patients also undergo additional CT throughout the study and may undergo PET/CT as clinically indicated throughout the study.

    Other: Artificial Intelligence-based Intervention · Other: Best Practice · Procedure: Computed Tomography · Procedure: Positron Emission Tomography · Other: Radiology, Treatment Planning · Radiation: Stereotactic Body Radiation Therapy · Other: Survey Administration

Interventions

  • OtherArtificial Intelligence-based Intervention

    Undergo AI-directed segmentation of the tumor

    Also known as: AI Intervention, AI-based Intervention

  • OtherBest Practice

    Undergo standard of care radiation planning

    Also known as: standard of care, standard therapy

  • ProcedureComputed Tomography

    Undergo CT and/or PET/CT

    Also known as: CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography, Computerized axial tomography (procedure), Computerized Tomography, Computerized Tomography (CT) scan, CT, CT Scan, Diagnostic CAT Scan, Diagnostic CAT Scan Service Type, tomography

  • ProcedurePositron Emission Tomography

    Undergo PET/CT

    Also known as: Medical Imaging, Positron Emission Tomography, PET, PET Scan, Positron emission tomography (procedure), Positron Emission Tomography Scan, Positron-Emission Tomography, PT

  • OtherRadiology, Treatment Planning

    Undergo physician segmentation of the tumor

  • RadiationStereotactic Body Radiation Therapy

    Undergo SBRT

    Also known as: SABR, SBRT, Stereotactic Ablative Body Radiation Therapy

  • OtherSurvey Administration

    Ancillary studies

06

What researchers measure

Primary outcomes

  1. Determination of lesion segmentation and accuracy

    The Dice Similarity Coefficient (DSC) and the 95th percentile Hausdorff Distance (HD95) will be calculated for each gross tumor volume (GTV) lesion by comparing physician de novo contours (P) with artificial intelligence (AI) contours (A). A linear mixed-effects model will be used to estimate the mean DSC(P, A\*) across all lesions while adjusting for patient-level clustering. The model will produce an estimated marginal mean DSC, its 95% confidence interval, and the one-sided p-value for the pre-specified hypothesis test of whether the mean DSC exceeds a clinically acceptable threshold. HD95(P, A) will be summarized descriptively using means, medians, and interquartile ranges. Sensitivity analyses will be performed if DSC values deviate substantially from normality; in such cases, per-patient mean DSC values will be computed and tested against the 0.72 threshold using a one-sample t-test or Wilcoxon signed-rank test.

    Time frame: Baseline

  2. Overall contouring time

    The primary workflow endpoint examines whether AI assistance reduces overall contouring time relative to de novo physician contouring. For each patient (and each lesion when distinct timing is recorded), the time required for physician de novo contouring (T\_P) and for physician review and modification of AI-generated contours (T\_\[A\^\* \]) will be compared. The primary analysis will use a paired t-test to estimate the mean absolute reduction in time and the corresponding percent reduction. If patients contribute multiple lesions with independently recorded times, a linear mixed-effects model with a patient-level random intercept will be used instead of a simple paired test. This model will estimate the mean difference in contouring time and the associated 95% confidence interval. Will test whether T\_P is greater than Atime, indicating a workflow efficiency gain attributable to AI guidance. Percent time reduction, defined as (T\_P- T\_(A\^\* )) / T\_P × 100%, will be summarized.

    Time frame: Baseline

Secondary outcomes

  1. Evaluation of internal target volume (ITV) generation

    Will evaluate ITV generation to characterize AI performance in motion-inclusive target delineation and to assess the clinical utility of AI-assisted respiratory motion integration. Geometric agreement between physician-derived and AI-assisted ITVs will be assessed using DSC, HD95, centroid displacement, contour volume differences, and voxel-wise edit maps. These analyses will characterize systematic differences in motion envelope definition, identify regions most frequently modified by physicians, and evaluate the impact of respiratory motion on AI-assisted target delineation.

    Time frame: Baseline

  2. Comparison of physician evaluation of contours versus AI only contours

    For GTV, secondary segmentation analyses will include comparisons of physician de novo contours versus AI-only contours (P versus \[vs\] A), AI-only contours versus physician-modified AI contours (A vs A\*), and physician de novo contours versus physician-modified AI contours (P vs A\*). These comparisons will quantify both the magnitude and direction of physician edits and assess the extent to which AI-assisted contours converge toward physician-derived reference contours. For each lesion, DSC and HD95 will be summarized using descriptive statistics, and paired analyses (paired t-tests, non-parametric alternatives or mixed-effects models) will be used to compare contour sets.

    Time frame: Baseline

  3. Time to progression (Local control)

    Will be estimated using the Kaplan-Meier method and reported as the proportion of patients alive without radiographic evidence of recurrence at the treated lesion.

    Time frame: At 12 months

  4. Local failure

    Will be defined using standard institutional radiographic criteria.

    Time frame: Up to 12 months

  5. Progression-free survival (PFS)

    Will be evaluated using Kaplan-Meier estimation. The 12-month PFS rate and associated confidence intervals will be reported. While not a powered analysis, exploratory associations between contour quality metrics (e.g., DSC, HD95, magnitude of edits) and PFS may be explored using Cox proportional hazards regression; these analyses will be considered hypothesis-generating.

    Time frame: From completion of stereotactic body radiation therapy until progression, physician-assessed progression, initiation of subsequent anti-cancer therapy, or death from any cause, assessed up to 12 months

  6. Changes in pulmonary function

    Will compare Radiation Therapy Oncology Group Pulmonary Function Test Toxicity Scale scores obtained before stereotactic body radiation therapy and at 12 months post-treatment. Analyses will quantify shifts in toxicity grades, summarize the distribution of functional changes, and describe the incidence of clinically meaningful pulmonary decline. If sample size permits paired statistical testing, ordinal tests or non-parametric alternatives may be used, although primary interpretation will remain descriptive given the limited cohort size.

    Time frame: Before stereotactic body radiation therapy to 12 months post-treatment

  7. Incidence of adverse events

    Toxicity will be summarized according to Common Terminology Criteria for Adverse Events version 6.0, with attention to overall incidence, attribution, severity, timing, and patterns of adverse events. The maximum toxicity grade per patient and the incidence of grade ≥ 3 toxicities will be reported. Tabulation of toxicity profiles will characterize the safety and tolerability of stereotactic body radiation therapy delivered using AI-assisted segmentation.

    Time frame: Up to 12 months post-treatment

07

Study locations

1 site
08

Updates

1 registry update since Sep 25, 2026
Registered
First appeared on the registry. No changes since
Oct 27, 2026
Show all 1 update
  1. Oct 27, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07898241
Responsible party
Sponsor
First posted
Oct 27, 2026
Start date
Feb 13, 2027 (estimated)
Primary completion
Feb 13, 2030 (estimated)
Completion
Mar 13, 2032 (estimated)
Last update
Oct 27, 2026

Study contacts

Study Coordinator
Contact
cancer@northwestern.edu
3126951301
Mohamed E Abazeed
principal investigator · Northwestern University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

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