Working…
ClinicalTrials.gov
ClinicalTrials.gov Menu

En-bloc Transurethral Resection of Bladder Tumor (En-bloc TURBT) Specimens Using a Redesigned Surgical Resectoscope Device

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT04235764
Recruitment Status : Recruiting
First Posted : January 22, 2020
Last Update Posted : November 19, 2020
Sponsor:
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Cancer Institute (NCI) )

Brief Summary:

Background:

Bladder cancer is the sixth most common cancer in the United States. The way that doctors remove tumors in bladder surgeries may leave some cancer . Also, many people have their tumors return or progress after surgery. Researchers want to test a modified device. It might tell doctors more about bladder tumors.

Objective:

To see if using a modified standard device with bladder surgery can provide better information about tumors in bladder specimens.

Eligibility:

People ages 18 and older who need to have their bladder removed at the NIH.

Design:

Participants will be screened with:

Medical and prior surgical history

Review of existing MRI, x-ray, or CT scans

Review of existing specimens and reports

Pregnancy test for women of childbearing age

CT or MRI: Participants will lie in a machine. The machine will take pictures of their body.

Participants will have bladder surgery. This will occur in the same way as if they did not take part in this study. A member of the research team will cut the removed bladder using the modified device. This will most likely be done on a separate back table in the operating room. The bladder and samples after cutting will be sent out for review. The will occur just as it would if the participants were not in this study. The only difference is the way that the specimen is prepared for review.

Participants follow-up care will occur per standard of care. Or it will occur as part of any other study in which they might also be enrolled.

...


Condition or disease
Bladder Cancer

Detailed Description:

Background:

  • Bladder cancer is the sixth most common cancer in the United States, disproportionately affecting more men than women.
  • The gold standard for the surgical treatment and diagnosis of non-muscle invasive bladder cancer is transurethral resection of bladder tumors (TURBT).
  • TURBT requires the fragmentation of bladder tumors and piecemeal removal of these tumors.
  • TURBT leads to loss of histopathologic information - including tumor orientation, size, and margin status - which may compromise outcomes and risk tumor seeding within the bladder.
  • Given these multiple problems with TURBT we are testing some modifications to the current resectoscope device and the effect of these modifications on the quality of TURBT specimens produced.
  • The redesigned resectoscope device will be tested ex-vivo on cystectomy specimens to avoid risks to patient safety.

Objectives:

The primary objective of this study is to determine if resectoscope device modification can provide improved pathologic standards for the TURBT procedure. An improvement in any of the parameters outlined below will constitute a device improvement in the current resectoscope:

  • Presence of three tissue layers within the tumor specimens containing bladder mucosa, lamina propria, and portions of the muscularis.
  • Information regarding tumor margin, assessed as the ability to ascertain if tumor is present at the margin of the resection.

Eligibility:

  • Medical condition requiring surgical removal of the bladder
  • Men and women, age >= 18 years

Design:

  • Preclinical tissue acquisition trial, ex vivo, proof-of-concept.
  • Following cystectomy, a modified resectoscope/redesigned resectoscope will be used to resect areas of tumor from the cystectomy specimens. These resected tumors will be sent with the cystectomy specimen for histopathology to assess the size of resection, depth of resection, and ability to ascertain tumor orientation.
  • The remainder of the cystectomy specimens will undergo traditional histopathology. Histopathologic information from both specimens will be included in the final histopathologic diagnosis to ensure accurate oncology staging.
  • This study will allow for about 2 years of accrual and the accrual ceiling will be set at 25 subjects.

Layout table for study information
Study Type : Observational
Estimated Enrollment : 25 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Ex-Vivo Trial of En-bloc Transurethral Resection of Bladder Tumor (En-bloc TURBT) Specimens Using Modified Existing Surgical Resectoscope Device
Actual Study Start Date : September 9, 2020
Estimated Primary Completion Date : September 30, 2022
Estimated Study Completion Date : September 30, 2023

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Bladder Cancer

Group/Cohort
1/ Cohort 1
Bladder Cancer Patients



Primary Outcome Measures :
  1. Assessment of resectoscope device modification on pathologic standards for the TURBT procedure [ Time Frame: Time of surgery/pathologic assessment (7-10 days) ]
    -Presence of three tissue layers within the tumor specimens containing bladder mucosa, lamina propria, and portions of the muscularis.-Information regarding tumor margin, assessed as the ability to ascertain if tumor is present at the margin of the resection.


Secondary Outcome Measures :
  1. Assessment for possible bladder perforation in bladder specimens [ Time Frame: Time of surgery/pathologic assessment (7-10 days) ]
    The rate of occurrence will be described/tabulated.



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Bladder Cancer Patients
Criteria
  • INCLUSION CRITERIA:
  • Patients requiring surgical removal of the bladder at the NIH Clinical Center.

NOTE: Reasons for need for surgical removal of bladder include cancer or benign condition for which a surgeon determined surgical removal of the bladder is recommended. Patient's with invasive bladder cancer requiring cystectomy are eligible for enrollment. Bladder cancer remains the most common reason for cystectomy. Patients with clinical advanced disease and having other treatments/or participating in other trials remain eligible for enrollment in this study.

  • Men and women
  • Age greater than or less than 18 years
  • Deemed clinically appropriate for the planned surgical procedure.
  • Ability of subject to understand and the willingness to sign a written informed consent document.
  • Subjects will be asked to co-enroll in 15-C-0087, "Care of the Urothelial Cancer Patient and Prospective Collection of Biospecimens from Healthy Volunteers and Urothelial Cancer Patients." NOTE: Most participants are expected to already be enrolled in 15-C-0087 prior to entry in this study.

EXCLUSION CRITERIA:

- Cystectomy during pregnancy would subject the fetus to significant risk of miscarriage or premature labor. For this reason, pregnant women are ineligible for this study.


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04235764


Contacts
Layout table for location contacts
Contact: Sonia E Bellfield, R.N. (240) 760-6118 sonia.bellfield@nih.gov

Locations
Layout table for location information
United States, Maryland
National Institutes of Health Clinical Center Recruiting
Bethesda, Maryland, United States, 20892
Contact: For more information at the NIH Clinical Center contact National Cancer Institute Referral Office    888-624-1937      
Sponsors and Collaborators
National Cancer Institute (NCI)
Investigators
Layout table for investigator information
Principal Investigator: Vladimir A Valera Romero, M.D. National Cancer Institute (NCI)
Additional Information:
Layout table for additonal information
Responsible Party: National Cancer Institute (NCI)
ClinicalTrials.gov Identifier: NCT04235764    
Other Study ID Numbers: 200020
20-C-0020
First Posted: January 22, 2020    Key Record Dates
Last Update Posted: November 19, 2020
Last Verified: November 17, 2020
Keywords provided by National Institutes of Health Clinical Center (CC) ( National Cancer Institute (NCI) ):
TURBT
Transurethral Resection of Bladder Tumors
Cystectomy
Modified Resectoscope
Additional relevant MeSH terms:
Layout table for MeSH terms
Urinary Bladder Neoplasms
Urologic Neoplasms
Urogenital Neoplasms
Neoplasms by Site
Neoplasms
Urinary Bladder Diseases
Urologic Diseases