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Bladder CancerNCT05362539

Novel Urine-Based DNA Methylation Biomarkers for Urothelial Bladder Carcinoma Detection in Patients With Hematuria

A study testing Cystoscopy, Computed tomography and DNA hypermethylation assay in people with Bladder Cancer, run by Mansoura University at 1 site in Egypt.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The current study aimed to assess the diagnostic performance of novel urine-based DNA hypermethylation of six genes (GATA4, P16, P14, APC, CDH1 and CD99) for UBC detection in patients with hematuria. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Bladder Cancer
What is being tested?
Cystoscopy, Computed tomography and DNA hypermethylation assay
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
246 participants
Where
1 siteEgypt
Study dates
1 Feb 2019to 1 Apr 2022
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • patients with hematuria (macroscopic or microscopic)

Who cannot join

  • history of Bladder Cancer
  • history of pelvic irradiation,
  • bleeding diathesis or receiving anticoagulants
  • patients with upper urinary tract neoplasm or urolithiasis

Trial locations and contacts

1 site in 1 country.

Egypt1 site
  • Mansoura Urology and Nephrology Center

    Al Mansurah, DK, 35516

Other trials in Egypt

About this study

The current study aimed to assess the diagnostic performance of novel urine-based DNA hypermethylation of six genes (GATA4, P16, P14, APC, CDH1 and CD99) for UBC detection in patients with hematuria.

Read the detailed description

According to GLOBOCAN data, bladder cancer (BC) is considered a major health problem that represents 3% of all cancer diagnoses. Urothelial bladder carcinoma (UBC) accounts for the vast majority (>90%) of BC cases with predominance of non-muscle invasive disease (Ta, Tis or T1) in 75% of patients while others show muscle invasion (T2-4).

In refereed population, UBC is usually diagnosed as a result of work-up for hematuria at a rate of 2-5% following an evaluation of asymptomatic microscopic hematuria, and, up to 5-15% of patients with macroscopic hematuria. Therefore, a timely prompt evaluation of hematuria can give to earlier diagnosis and better survival of UBC.

Currently, cystoscopy /cross sectional imaging are the gold standard tools for UBC diagnosis in patients with hematuria. Unfortunately, these costly, invasive and painful diagnostics could miss early, small/flat bladder lesions. Urine cytology has been proposed as a non-invasive alternative test with high specificity, however, it lacks sensitivity for diagnosis of low grade (LG) tumors.

Over the last decades, multiple researches have output different markers for UBC diagnosis. Based on their target of assessment, these markers include screening for soluble antigens (BTA-Stat, NMP-22, surviving, etc.), cell surface antigens (Cytokeratins and UroVysion), genomic markers (Cxbladder and Xpert) and urinary metabolomics (CRAT and SLC25A20). However, most of these markers are limited by unsatisfying diagnostic performance, high cost or lack of validation.

Several preliminary studies have shown that DNA methylation, a critical step in transcription regulation, is chemically stable and can be precisely quantified, making it an attractive marker for UBC detection. Both local and global DNA hypermethylation in BC specimens are usually associated with inactivation of tumor suppressor genes. These methylations changes could be effectively identified in urine sediments as well as tumor tissues.

In the current literature, multiple studies investigated the performance of DNA hypermethylation of either individual or panel genes with reported sensitivity (SN) and specificity (SP) values that range from 40-95 % and 10-100 %, respectively. Most of these studies were limited by tumor characteristics heterogeneity (majority were ≥T2 and high grade (HG) disease; which did not reflect the daily practice, inclusion of different BC histological variants), lack of external validation and small sample size.

The aim of our study is to assess the diagnostic performance of novel urine-based DNA methylation six genes (GATA4, P16, P14, APC, CDH1 and CD99) for UBC detection in patients with hematuria. Moreover, we investigated the methylation pattern of these genes in different stages and grades of UBC.

Conditions
Bladder Cancer
Being tested
Cystoscopy, Computed tomography, DNA hypermethylation assay, Urine cytology
Keywords
Urothelial bladder carcinoma, Bladder cancer, Hematuria, Biomarkers, DNA methylation
Medical subject headings
Urinary Bladder Neoplasms, Hematuria

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CystoscopyProcedure or surgery

    diagnostic cystoscopy for detection of any bladder lesions

  • Computed tomographyDiagnostic test

    Computed tomography for patients to exclude bladder lesions

  • DNA hypermethylation assayGenetic

    DNA hypermethylation assay of six genes (GATA4, P16, P14, APC, CDH1 and CD99)

  • Urine cytologyDiagnostic test

    voided urine cytology for all patients

Study groups in NCT05362539
Study groupRoleWhat they receive
Hematuria patientsExperimentalVoided urine was collected from consecutive patients presented with hematuria at our institute for urine cytology and DNA hypermethylation assay of the assigned genes using methylation-specific Polymerase Chain Reaction (PCR). Further assessment by office cystoscopy and imaging with subsequent inpatient cystoscopic biopsy for positive findings, was done. The diagnostic characteristics of DNA hypermethylation and urine cytology were assessed based on its capability to predict UBC noninvasively
Receives: Procedure: Cystoscopy; Diagnostic Test: Computed tomography; Genetic: DNA hypermethylation assay; Diagnostic Test: Urine cytology

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Rate of hypermethylation of six genes (GATA4, P16, P14, APC, CDH1 and CD99) in patients with urothelial bladder carcinoma

    Rate of hypermethylation of six genes (GATA4, P16, P14, APC, CDH1 and CD99) in patients with urothelial bladder carcinoma

    Measured: 4 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 May 2022
  2. Study start1 Feb 2019
  3. Primary completion1 Jun 2021
  4. Study completion1 Apr 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
246 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05362539
Sponsor's protocol ID
AS-4-2022
Status last verified
Apr 2022
First submitted
27 Apr 2022
Last updated
5 May 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Cystoscopy, Computed tomography and DNA hypermethylation assay in people with Bladder Cancer, run by Mansoura University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Rate of hypermethylation of six genes (GATA4, P16, P14, APC, CDH1 and CD99) in patients with urothelial bladder carcinoma (time frame: 4 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 May 2022.

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