Clinical trial · Interventional
Clinical Study of Lewis Antigen Assay Combined With CA19-9 Assay to Assess Prognosis in Patients With Pancreatic Cancer
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
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
CA19-9 is an acidic glycoside containing sialic acid, called ganglioside. Lewis blood group antigen is the precursor for the synthesis of CA19-9, which is formed by the combined action of sialic acid transferase and fucosyltransferase (FUT3). The ability to produce soluble blood group substances is determined by the alpha (1,2) fucosyltransferase gene (FUT2), which can be divided into secretory Se, weakly secretory Sew, and non secretory SE. The Lewis antigen positive (Lewis+) population has normal CA19-9 secretion function, while the Lewis antigen negative (Lewis -) population (about 7%) usually shows no or low secretion of CA19-9. Therefore, when CA19-9 is used as a biomarker, the combined detection of Lewis antigen status is a marker to judge the prognosis of pancreatic cancer, which can divide pancreatic cancer patients into high/medium/low malignant phenotypes.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| PDAC | Pancreatic Ductal Adenocarcinoma | ALIAS | 0.90 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Lewis genotype detection reagent | Diagnostic Test | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Study group
- description
- All enrolled subjects will accurately complete one Lewis genotype test and at least one CA19-9 test
- interventionNames
- Diagnostic Test: Lewis genotype detection reagent
Primary outcomes (1)
- measure
- To explore the prognosis of pancreatic cancer with the combination of the Lewis antigen test and the CA19-9 test
- timeFrame
- Up to 12 months after the treatment
- description
- The phenotypes of pancreatic cancer patients were classified by Lewis antigen test combined with CA19-9 test.Monitoring patients' disease expression and assisting clinical selection of targeted treatment plan.The consistency between Lewis classification and prognosis was assessed by looking at the survival of pancreatic cancer subjects following clinical treatment regimens.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 75 Years
Show eligibility criteria text
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
References
Publications (0)
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