Assessing Prognosis in Pancreatic Cancer Using Lewis Antigen and CA19-9 Tests

To Evaluate a Prospective, Multicenter, Exploratory Clinical Study of Lewis Antigen Assay Combined With CA19-9 Assay to Assess Prognosis in Patients With Pancreatic Cancer

NA · Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine · NCT06515587

This study is testing if combining Lewis antigen and CA19-9 tests can help doctors better understand the outlook for patients with pancreatic cancer.

Quick facts

PhaseNA
Study typeInterventional
Enrollment40 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorShanghai General Hospital, Shanghai Jiao Tong University School of Medicine (other)
Locations1 site (Shanghai, Shanghai Municipality)
Trial IDNCT06515587 on ClinicalTrials.gov

What this trial studies

This clinical study aims to evaluate the prognosis of patients with pancreatic ductal adenocarcinoma (PDAC) by combining the detection of Lewis antigens with the CA19-9 biomarker. It employs a prospective, multicenter design to classify patients based on their Lewis antigen status and CA19-9 levels, observing their survival outcomes. The study will also assess the sensitivity and specificity of Lewis antigen detection in both pancreatic cancer patients and non-cancer subjects. By analyzing the relationship between Lewis subtypes, age, and overall survival, the study seeks to enhance prognostic accuracy for pancreatic cancer.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 to 75 years with a confirmed diagnosis of pancreatic ductal adenocarcinoma.

Not a fit: Patients with other concurrent malignancies or those unable to follow a specific anti-cancer treatment plan may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more accurate prognostic tool for patients with pancreatic cancer, potentially guiding treatment decisions.

How similar studies have performed: While the combination of Lewis antigen and CA19-9 testing is a novel approach, similar studies have shown promise in improving prognostic assessments in cancer.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Voluntarily enrolled, regardless of gender, aged ≥ 18 and ≤ 75 years old, and the patient can understand and is willing to sign an informed consent form;
2. ECOG 0-2
3. Pathologically confirmed as pancreatic ductal adenocarcinoma; Or confirmed by pathology and clinical examination as pancreatic ductal adenocarcinoma.
4. Willing to accept routine CA19-9 testing, Lewis antigen sample collection and testing (2-3ml), and follow-up Non pancreatic cancer subjects enrolled in this study must meet all the following criteria

1\. Voluntary enrollment, regardless of gender, age ≥ 18 years, ≤ 75 years old, and the patient can understand and is willing to sign an informed consent form 2. Willing to accept Lewis antigen sample collection and testing (2-3ml)

Exclusion Criteria:

1. Suffering from the second or double primary malignant tumor besides pancreatic cancer at the same time
2. Patients with pancreatic cancer who cannot trace the specific anti-cancer treatment plan
3. HIV positive
4. Other situations that researchers believe need to be excluded

Where this trial is running

Shanghai, Shanghai Municipality

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: PDAC

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.