MedTrace Logo

JAM3 as a Prognostic Biomarker in Muscle-Invasive Urothelial Carcinoma: Correlation With Therapeutic Response, and Survival Outcomes

NCT06901934 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 40

Last updated 2025-03-30

No results posted yet for this study

Summary

Bladder cancer(BC) is the 10th most common cancer globally, with a higher incidence in males than females, being the 6th most common cancer in men with high mortality, causing a societal burden worldwide.

Known risk factors include age, gender, cigarettes, genetic factors, and other environmental influences .

BC can be classified into non-muscle-invasive BC (NMIBC) and muscle-invasive BC (MIBC) . MIBC exhibits a more aggressive nature, correlates with a higher level of T-stage, and has more significant genetic heterogeneity .

Despite comprehensive treatment regimens comprising neoadjuvant chemotherapy, radical cystectomy (RC) and adjuvant immunotherapies, a significant proportion of MIBC patients continue to progress to more advanced stages with limited clinical indicators.

Unfortunately, the mechanisms underlying BC initiation, proliferation, and progression remain largely unknown.

The occurrence of genetic alterations is believed to be closely linked to BC tumorigenesis. Therefore, investigating the genetic alterations might offer opportunities to further understand biological changes in BC .

A key mechanism underlying tumor progression and metastasis is the epithelial-mesenchymal transition (EMT), which is associated with increased invasiveness, chemoresistance, and immune evasion.

EMT is characterized by the downregulation of epithelial markers such as E-cadherin (CDH1) and the upregulation of mesenchymal markers like N-cadherin (CDH2), vimentin, Snail, and ZEB proteins .

Emerging evidence suggests that junctional adhesion molecule 3 (JAM3) plays a role in EMT and cancer progression, with documented involvement in gastric cancer.

However, its significance in MIBC remains poorly understood. Investigating JAM3 expression in MIBC may provide novel prognostic insights and help refine patient stratification for NAC and immunotherapy.

Aim:

This study aims to analyze JAM3 expression in transurethral biopsies from MIUC patients and correlate it with:

* Tumor aggressiveness (grading, staging, and histological features).
* Response to neoadjuvant chemotherapy .
* Patient survival and disease progression.

This study will provide a better understanding of JAM3's role in EMT and MIUC progression, offering potential biomarker-driven insights for treatment stratification.

If JAM3 is validated as a prognostic factor, it could guide personalized therapeutic approaches and optimizing NAC outcomes.

Conditions

  • Urothelial Carcinoma Bladder

Interventions

OTHER

junctional adhesion molecule3 expression by immunhistochemistry

* Data record of patient will be reviewed for the following: * Clinical features: * Age * Performance status * Risk factors(smoking,stones or bilharziasis) * Comorbidities * Family history * Pathological features: * Histological subtype * Grade * Muscle invasion * Carcinoma in situ * Immunohistochemistry(IHC): JAM3 expression by IHC * TNM staging * Number of chemotherapy cycles received * Radical surgery or * CCRT and type of concurrent * Post treatment histological response * . Follow-Up and Survival Analysis: * During treatment: Monitoring for adverse events of chemotherapy and clinical response. * After treatment: Imaging and clinical examination every 3 months for 2 years. * Correlation of JAM3 expression with progression-free survival (PFS) and overall survival (OS)..

Sponsors & Collaborators

  • Zeinab Yahia Zaki

    lead OTHER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-10-01
Primary Completion
2027-10-01
Completion
2028-10-01

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06901934 on ClinicalTrials.gov