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Evaluation the Treatment of Tamoxifen of Low/Intermediate Risk Bladder Tumors (BCTamoxifen)

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ClinicalTrials.gov Identifier: NCT02197897
Recruitment Status : Completed
First Posted : July 23, 2014
Results First Posted : January 13, 2021
Last Update Posted : January 13, 2021
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Guilherme Godoy, Baylor College of Medicine

Brief Summary:
Evaluate the treatment of tamoxifen of low/intermediate-risk bladder tumors

Condition or disease Intervention/treatment Phase
Bladder Cancer Drug: Tamoxifen Citrate Phase 2

Detailed Description:
Patients with primary or recurrent low/intermediate-risk papillary urothelial carcinoma of the bladder will undergo resection of all but one marker lesion, measuring at least 6mm but no greater than 10mm, and biopsy of normal-appearing mucosa. Patients with a solitary tumor will undergo only biopsy prior to treatment. A 2mm cold cup biopsy of the marker lesion will always be performed to rule out a potential high-grade lesion and for assessment of pretreatment immunohistochemistry expression levels of ERα, ERβ1, Ki-67 (proliferation marker) and TUNEL (apoptosis marker). If there are multiple tumors, all lesions, except the marker lesion will be resected and sent for analysis. These patients will not receive single immediate post-operative intravesical instillation of mitomycin-C. They will then undergo a 12-week course of treatment with tamoxifen administered as a single daily oral dose of 20mg. At the completion of therapy, patients will undergo resection of the marker lesion (or biopsy of the tumor bed, if a complete response is observed) and biopsy of normal-appearing bladder mucosa again. Toxicity evaluations will be performed at the beginning (day 3), midway (week 6), and at completion of treatment (week 12), prior to resection of the marker lesion. A final assessment for toxicity will also be performed 30 days after completion of therapy as well as a second definitive resection of the marker lesion. Urine samples will be obtained with the index tumor in place (marker lesion), and after completion of treatment, at the time of definitive transurethral resection of the index tumor, as part of the standard clinical care of these patients, and at the discretion of the surgeon for assessment of urinary cytology. The urine samples will not be utilized for the research study. All normal-appearing bladder biopsies (pre and post-treatment), the additional tumors (in case of multiple lesions), and the definitive resection of the marker lesion (in the absence of response to therapy) will provide sufficient material for immunohistochemistry assessment of the expression levels of ERα, ERβ-1, ERβ-2, ERβ-5, Ki-67, and TUNEL, and also for RT-qPCR for mRNA analyses of ERα, ERβ-1, ERβ-2, and ERβ-5. The pretreatment biopsy of the marker lesion will be performed with a smaller biopsy forceps and will provide limited material, sufficient only for immunohistochemistry assessment of the expression levels of ERα, ERβ-1, Ki-67, and TUNEL.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 15 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase II Trial of Estrogen Receptor Targeted Treatment of Non-Muscle Invasive Bladder Cancer With Tamoxifen.
Actual Study Start Date : April 1, 2015
Actual Primary Completion Date : September 12, 2017
Actual Study Completion Date : June 28, 2019

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Bladder Cancer

Arm Intervention/treatment
Experimental: Tamoxifen
As a single-arm study (single group assignment), Tamoxifen citrate will be given to all patients at a 20mg/day dose for 12 weeks using a marker-lesion study design.
Drug: Tamoxifen Citrate
Single-center, two-stage phase-II clinical trial (Simon design)
Other Name: Nolvadex

Primary Outcome Measures :
  1. Evaluate the Efficacy for Treatment of Low/Intermediate- Risk Bladder Tumors, Assessing for the Clinical Response of the Marker Lesion [ Time Frame: 2.5 years ]
    Evaluate the efficacy of tamoxifen for treatment of low/intermediate-risk bladder tumors, utilizing the RECIST criteria combined with the final biopsy of the marker lesion or the bed of the lesion in case of a complete response

Information from the National Library of Medicine

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Ages Eligible for Study:   21 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

Males and females age 21 or older. Histologic evidence of urothelial carcinoma of the bladder. Low/Intermediate-risk papillary urothelial carcinoma of the bladder, at initial occurrence or recurrent with >6 months interval free of disease.

Patients with multifocal tumors must have resectable lesions. Patients may be treatment-naïve or have failed 1 previous regimen of intravesical therapy.

At least one endoscopically measurable tumor 6 - 10mm in diameter. Adequate hepatic and renal function. Patient or authorized proxy needs to have signed the informed consent form.


Exclusion Criteria:

Patients with sessile appearing tumors, which may be invasive or high-grade. Diagnosis of urothelial carcinoma involving the prostatic urethra or upper urinary tract.

Plans for pelvic radiation while participating in the study. Concurrent use of warfarin, heparin, or chronic use of NSAIDs, including aspirin (other than cardioprotective doses of 80mg daily) within 30 days prior to registration or during the trial.

Concurrent use of selective serotonin reuptake inhibitors or aromatase inhibitors.

Chronic or acute renal or hepatic disorder or any other condition, medical or psychological that, in the opinion of the investigator, could jeopardize the subject's safe participation.

Any other investigational drug within 30 days prior to registration and during the study.

Women Exclusion Pregnant or lactating women. Personal history of endometrial cancer or any abnormal uterine bleeding. Previous or concurrent treatment with SERM and/or hormonal replacement therapy within 3 months of the 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): NCT02197897

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United States, Texas
Baylor College of Medicine
Houston, Texas, United States, 77030
Harris Health System
Houston, Texas, United States, 77030
Sponsors and Collaborators
Baylor College of Medicine
National Cancer Institute (NCI)
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Principal Investigator: Guilherme Godoy, M.D. Baylor College of Medicine
  Study Documents (Full-Text)

Documents provided by Guilherme Godoy, Baylor College of Medicine:
Informed Consent Form  [PDF] November 16, 2018

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Responsible Party: Guilherme Godoy, Guilherme Godoy, M.D., Baylor College of Medicine
ClinicalTrials.gov Identifier: NCT02197897    
Other Study ID Numbers: H-25233
K23CA160664 ( U.S. NIH Grant/Contract )
First Posted: July 23, 2014    Key Record Dates
Results First Posted: January 13, 2021
Last Update Posted: January 13, 2021
Last Verified: December 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Keywords provided by Guilherme Godoy, Baylor College of Medicine:
Tamoxifen citrate
Bladder Cancer
Additional relevant MeSH terms:
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Urinary Bladder Neoplasms
Urologic Neoplasms
Urogenital Neoplasms
Neoplasms by Site
Urinary Bladder Diseases
Urologic Diseases
Estrogen Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Antineoplastic Agents, Hormonal
Antineoplastic Agents
Selective Estrogen Receptor Modulators
Estrogen Receptor Modulators
Bone Density Conservation Agents