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Studies germs in urine and bladder tissue of men with bladder cancer

Compares urinary germs and bladder tissue in men with bladder cancer and healthy men.

Key facts

Who runs it
Theodor Bilharz Research Institute
Where
Cairo, EgyptSee the site
Trial code
Registry title
Microbiota in Urine and Urothelium Can be a Factor for Induction of Urinary Bladder Cancer. The Study Will Examine Urine and Bladder Tissues From Egyptian Male Patients and Controls Using Whole Genomic Sequencing Techniques and 16S rRNA. The Aim is to Elucidate Role of Microbiota in Bladder Cancer.
Status
Recruiting
People taking part
38 people, planned
Started
20 Sept 2023
Expected to end
Jul 2027
Type of study
Observational
Record updated
1 March 2024

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adult men with confirmed bladder cancer. Urine and bladder tissue will be studied for microbes (the bacteria living in the urinary tract).

Age
18 years and older
Sex
Men only
Disease stage
Bladder cancer (carcinoma of the bladder) found on ultrasound and/or CT scan and urine cytology, and confirmed at cystoscopy, in earlier pathology, or in a biopsy sample.
Earlier treatment
Must not have had radiotherapy to the bladder or nearby organs, BCG or chemotherapy instilled into the bladder, or chemotherapy before surgery (neoadjuvant chemotherapy).

Main reasons for not taking part

  • Previous radiotherapy to the bladder or an adjacent organ
  • Previous BCG immunotherapy instilled into the bladder
  • Previous chemotherapy instilled into the bladder
  • Previous neoadjuvant chemotherapy

The registry criteria, word for word

Show all 6 criteriaShow less

Who can take part

  • Adult men above 18 years,
  • Diagnosed of carcinoma of the bladder with imaging ultrasonography and/ or computerized tomography, and urine cytology
  • Confirmed bladder cancer either during diagnostic cystoscopy, previous pathology, or pathological examination of the biopsy specimens

Who cannot take part

  • - Previous radiotherapy to the bladder or to adjacent organ
  • Previous intravesical instillation immunotherapy with bacillus Calmette-Guérin (BCG), or intravesical instillation of chemotherapeutics
  • Previous neoadjuvant chemotherapy

Where in Egypt

  • Theodor Bilharz Research InstituteCairo, EgyptContact: Mohamed M Wishahi, MDNot yet recruiting

About the trial

What the trial wants to find out

Microbes inhabiting the urinary tract that are playing an important role in maintenance of health and the development of diseases and bladder cancer. There is correlation between initiation of bladder cancer and microbes. Urine and bladder tissues from healthy individuals and patients with bladder cancer were analyzed using 16S rRNA sequencing, results show abundant phylum. Next-generation sequencing technologies will be applied with whole genomic and 16S ribosomal RNA gene sequencing for microbiota profiling in urine and bladder tissue of male healthy individuals and patients with bladder cancer. Results will lead to prevention, diagnosis, and new treatment strategies for bladder cancer.

The group in the trial

  • 1-muscle invasive bladder cancer., 2-Non-muscle invasive invasive. 3- Control.

    Samples: Total number of studied samples: The study will explore the microbiota in urine and in tissue samples, so every patient with bladder cancer will give (2 samples). The control group will give urine sample ( one samble). Group I: Non-muscle invasive bladder cancer,16 patients, 16 for bladder tissue, and 16 for urine samples. Total 32 samples. (The study will explore the microbiota in urine and in tissue samples, so every patient with bladder cancer will give (2 samples). The control group will give urine sample (1 samble). Group II: Muscle invasive bladder cancer, 11 patients. 22 samples 11 for bladder tissue and 11 for urine samples obtained from the same patients. Group III: 11 Normal adults: urine samples from serves as control group of the study. Total number of participants is 38 individuals.

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Profiling Urinary Microbiota in Male Patients With Bladder Cancer- An Exploratory Study.
Plain-language title
Studies germs in urine and bladder tissue of men with bladder cancerGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 12 November 2026.
Record updated
1 March 2024