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NCT Number: NCT07327970

Prospective Validation of Ataraxis AI Test for Predicting Treatment Response in Neoadjuvant Breast Cancer

This study evaluates the real-world clinical workflow integration of a previously developed artificial intelligence (AI) prognostic test in breast cancer patients receiving neoadjuvant chemotherapy, and validates its accuracy in predicting treatment response.

The Ataraxis AI test analyzes digitized images of tumor biopsy slides combined with basic clinical information (age, tumor stage, hormone receptor status) to generate a risk score. Prior studies showed the AI test can predict cancer recurrence with accuracy comparable to or better than existing genomic tests.

The study has two stages:

* Stage 1 (30 patients): Assess whether the AI test can be practically integrated into routine clinical workflow, including ease of use, report clarity, and time requirements. * Stage 2 (70-120 additional patients): Validate the accuracy of AI-predicted pathological complete response (pCR) rates against actual surgical outcomes.

This study uses a blinded design where treating physicians remain blinded to AI results until post-surgical pCR assessment. AI analysis is performed by the research coordinator in collaboration with Ataraxis. After pCR evaluation, AI results are disclosed and physicians complete surveys assessing hypothetical treatment changes. This design eliminates AI influence on treatment decisions and ensures independent validation.

Participants are adults with Stage I-III breast cancer planned for neoadjuvant chemotherapy. The study involves no additional procedures beyond standard care except for completing surveys about the AI test experience.

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Key information

Age range

18 year and older

Sex eligibility

Female

Study type

Observational

Primary location

Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea

Incheon, 21431, South Korea

Location status: Recruiting

Location contact

Young Joon Kang

CONTACT

[email protected]

01026383847

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Histologically confirmed Stage I-III invasive breast cancer
  • Planned for neoadjuvant chemotherapy
  • H&E-stained slides available from core needle biopsy
  • Age 18 years or older
  • Able to provide written informed consent

Exclusion criteria

  • Metastatic breast cancer (Stage IV)
  • Not a candidate for neoadjuvant chemotherapy
  • H&E slides not obtainable from core needle biopsy
  • Unable to provide informed consent

Treatment and study plan

multi-modal foundation AI test

Diagnostic Test

Multi-modal AI test combining digital pathology features from H&E-stained core needle biopsy slides with clinical information (age, molecular biomarkers, TNM stage) to generate a continuous risk score (0-1) predicting pathological complete response. Results provided as reference information only; does not influence treatment decisions.

Primary outcomes

  1. Stage 1 - Feasibility: Clinical Workflow Compatibility Score

    Time frame: Within 4 weeks after surgery following NAC completion (approximately 5-7 months per participant)

    Mean score on 5-point Likert scale assessing AI system integration into existing clinical workflow, including ease of use, report comprehensibility, credibility, and time burden. Higher scores indicate better compatibility.

  2. pCR Prediction: pCR Prediction Accuracy (AUC-ROC)

    Time frame: Within 4 weeks after surgery following NAC completion (approximately 5-7 months per participant)

    Area under the receiver operating characteristic curve for AI-predicted pCR probability versus actual pathological complete response status (defined as ypT0/is ypN0).

Secondary outcomes

  1. Subtype-specific pCR Prediction Accuracy

    Time frame: Within 4 weeks after surgery following NAC completion (approximately 5-7 months per participant)

    AUC-ROC for pCR prediction analyzed separately for each molecular subtype: TNBC, HER2+, and HR+/HER2-. Descriptive statistics only.

  2. Sensitivity and Specificity of pCR Prediction

    Time frame: Within 4 weeks after surgery following NAC completion (approximately 5-7 months per participant)

    Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for AI-predicted pCR using predefined risk thresholds.

  3. AI Test Processing Time

    Time frame: Within 2 weeks after enrollment

    Time in days from data upload to Ataraxis platform to AI result receipt.

  4. Hypothetical Treatment Change Rate

    Time frame: After AI result disclosure following surgery (approximately 5-7 months per participant)

    Proportion of cases where physicians indicate they would have modified treatment, assessed retrospectively after AI result disclosure following surgery and pCR evaluation. Includes regimen change, pembrolizumab addition/removal, cycle adjustment, or NAC omission.

  5. Correlation Between AI Score and Established Prognostic Factors

    Time frame: Within 4 weeks after surgery following NAC completion (approximately 5-7 months per participant)

    Spearman correlation coefficients between AI risk score and Ki67, tumor grade, clinical T stage, and clinical N stage.

Study contacts

Contact information is provided by the study sponsor or research team.

Young Joon Kang, Ph.D.

CONTACT

[email protected]

+82322805179

Sponsors and collaborators

Lead sponsor

Young-Joon Kang

Other

Registry information

Official study title

A Prospective Non-Interventional Study Using a Multi-Modal Prognostic Test (Ataraxis) for Evaluating the Clinical Integration in Early-Stage Invasive Breast Cancer

Acronym: ATARAXIS NEOP

Important dates

Study start
2026
Primary completion
2027
Study completion
2027
First posted
Jan 8, 2026
Registry last updated
Mar 27, 2026

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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