- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04752722
LEGEND Study: EG-70 in NMIBC Patients BCG-Unresponsive and High-Risk NMIBC Incompletely Treated With BCG or BCG-Naïve
A Phase 1/2 Study of EG-70 as an Intravesical Administration to Patients With BCG Unresponsive Non-Muscle Invasive Bladder Cancer (NMIBC) and High-Risk NMIBC Patients Who Are BCG Naïve or Received Incomplete BCG Treatment
This study will evaluate the safety and efficacy of intravesical administration of EG-70 in the bladder and its effect on bladder tumors in patients with NMIBC.
This study study consists of two phases; a Phase 1 dose-escalation to establish safety and recommended the phase 2 dose, followed by a Phase 2 study to establish how effective the treatment is.
The Study will include patients with NMIBC with Cis for whom BCG therapy is unresponsive and patients with NMIBC with Cis who are BCG-naïve or inadequately treated.
Study Overview
Status
Intervention / Treatment
Detailed Description
EG-70 is a novel non-viral gene therapy. EG-70 is designed to elicit a local immune response following delivery of the study gene therapy to the bladder urothelium. This approach of local administration through bladder instillation has the potential to induce a potent immune response exclusively at the site of the tumor, resulting in greater therapeutic benefit while reducing undesirable systemic toxicity.
Eligible BCG-unresponsive NMIBC patients will be enrolled in Phase 1, and Cohort 1 of Phase 2. Eligible high-risk NMIBC patients who have been incompletely treated or are BCG-naïve will be enrolled starting in Phase 2 in a separate single-arm cohort (Cohort 2).
Patients will be treated for up to four 12-week cycles of study drug instillation doses and assessments with follow up assessments.
Study Type
Enrollment (Estimated)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Contact
- Name: enGene clinical trials
- Phone Number: +18572991097
- Email: clinicaltrials@engene.com
Study Contact Backup
- Name: Chris Tosone
Study Locations
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Arizona
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Tucson, Arizona, United States, 85715
- Recruiting
- Urological Associates of South Arizona
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Contact:
- Susan Kalota
- Phone Number: 520-795-5830
- Email: skalota1@gmail.com
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California
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Irvine, California, United States, 92697
- Recruiting
- University of California - Irvine Medical Center
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Contact:
- Edward Uchio
- Email: euchio@uci.edu
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Los Angeles, California, United States, 90033
- Recruiting
- USC/Norris Comprehensive Cancer Center
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Contact:
- Anne Schuckman
- Phone Number: 323-865-3700
- Email: anne.schuckman@med.usc.edu
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Los Angeles, California, United States, 90048
- Recruiting
- Tower Urology
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Contact:
- Terry Williams
- Phone Number: 178 310-854-9898
- Email: williamst@towerurology.com
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Los Angeles, California, United States, 90017
- Withdrawn
- Urology Group of Southern California / American Institute of Research
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San Diego, California, United States, 92123
- Recruiting
- Genesis Research
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Contact:
- Katayune Golshan
- Email: Katayune.golshan@uniohp.com
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Contact:
- Alanna Gavriushina
- Phone Number: 2670 858-430-1101
- Email: Alanna.gavriushina@uniohp.com
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District of Columbia
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Washington, District of Columbia, United States, 20037
- Recruiting
- The George Washington Medical Faculty Associates
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Contact:
- Michael Whalen
- Phone Number: 202-741-2798
- Email: mwhalen@mfa.gwu.edu
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Florida
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Jacksonville, Florida, United States, 32209
- Recruiting
- University of Florida
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Contact:
- Kethandapatti Balaji
- Phone Number: 904-244-7340
- Email: kc.balaji@jax.ufl.edu
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Georgia
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Atlanta, Georgia, United States, 30322
- Recruiting
- Emory University
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Contact:
- Shreyas Joshi
- Phone Number: 404-778-4898
- Email: shreyas.joshi@emory.edu
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Kansas
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Kansas City, Kansas, United States, 66160
- Recruiting
- University of Kansas Medical Center
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Contact:
- Faith Rahman
- Phone Number: 913-588-2502
- Email: frahman2@kumc.edu
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Contact:
- Laura Mitchell
- Phone Number: 913-574-2854
- Email: Lmitchell11@kumc.edu
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Maryland
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Hanover, Maryland, United States, 21076
- Recruiting
- Chesapeake Urology Research Associates
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Contact:
- Rian Dickstein
- Email: rdickstein@cua.md
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Michigan
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Detroit, Michigan, United States, 48202
- Recruiting
- Henry Ford Health System
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Contact:
- Johar Raza, MD
- Phone Number: 716-697-0305
- Email: jraza1@hfhs.org
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Grand Rapids, Michigan, United States, 49503
- Recruiting
- Corewell Health Medical Group and Spectrum Health Hospitals
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Contact:
- Conrad Tobert
- Phone Number: 616-267-7333
- Email: conrad.tobert3@spectrumhealth.org
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Minnesota
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Minneapolis, Minnesota, United States, 55455
- Recruiting
- University of Minnesota
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Contact:
- Marissa Twedt
- Phone Number: 612-626-6661
- Email: twedt050@umn.edu
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Contact:
- Joseph Zabell
- Email: zabe0034@umn.edu
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New Jersey
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Voorhees, New Jersey, United States, 08043
- Recruiting
- New Jersey Urology, LLC
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Contact:
- Gordon Brown
- Email: gbrown@njurology.com
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New York
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New Haven, New York, United States, 10029
- Not yet recruiting
- Mount Sinai Medical Center
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Contact:
- John Sfakianos
- Email: john.sfakianos@mountsinai.or
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New York, New York, United States, 10016
- Completed
- Laura & Isaac Perlmutter Cancer Center at NYU Langone Health
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North Carolina
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Chapel Hill, North Carolina, United States, 27514
- Recruiting
- UNC Chapel Hill Hospital
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Contact:
- Marc Bjurlin
- Phone Number: 919-966-8217
- Email: marc_bjurlin@med.unc.edu
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Raleigh, North Carolina, United States, 27612
- Recruiting
- Associated Urologists of North Carolina
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Contact:
- Mark Jalkut
- Phone Number: 919-782-1255
- Email: mjalkut@gmail.com
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Ohio
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Cincinnati, Ohio, United States, 45219
- Recruiting
- University of Cincinnati Medical Center
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Contact:
- Mohammed Kamel
- Phone Number: 513-558-0983
- Email: kamelme@ucmail.uc.edu
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Middleburg Heights, Ohio, United States, 44130
- Recruiting
- Clinical Research Solutions - Helios Clinical Research
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Contact:
- Kara Lasorella
- Phone Number: 440-340-9010
- Email: kara.lasorella@heliosclinical.com
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Oregon
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Portland, Oregon, United States, 97239
- Recruiting
- Oregon Health & Science University (OHSU)
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Contact:
- J Liu
- Phone Number: 610-659-7113
- Email: jenj@ohsu.edu
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South Carolina
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Myrtle Beach, South Carolina, United States, 29572
- Recruiting
- Carolina Urologic Research Center, LLC
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Contact:
- Neal Shore
- Phone Number: 843-449-1010
- Email: nshore@auclinics.com
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Texas
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Dallas, Texas, United States, 75390
- Recruiting
- UT Southwestern Medical Center
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Contact:
- Jose Santoyo
- Phone Number: 214-645-8764
- Email: jose.santoyo@utsouthwestern.edu
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Contact:
- Yair Lotan
- Email: Yair.Lotan@UTSouthwestern.edu
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Houston, Texas, United States, 77030
- Recruiting
- University of Texas - MD Anderson Cancer Center
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Contact:
- Ashish Kamat, MD
- Phone Number: 713-792-3250
- Email: akamat@mdanderson.org
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Houston, Texas, United States, 77030
- Recruiting
- Houston Methodist Hospital - Department of Urology
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Contact:
- Taliah Muhammad
- Phone Number: 346-238-4523
- Email: tnmuhammad@houstonmethodist.org
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Wisconsin
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Milwaukee, Wisconsin, United States, 52336
- Recruiting
- Froedtert Hospital / Medical College of Wisconsin
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Contact:
- Scott Johnson
- Phone Number: 414-955-0867
- Email: scjohnson@mcw.edu
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
BCG-unresponsive Patients:
BCG-unresponsive NMIBC with carcinoma in situ (CIS) with or without coexisting papillary Ta/T1 tumors who are ineligible for or have elected not to undergo cystectomy, and have experienced 1) persistent disease within 12 months of treatment or 2) a recurrence within 6 months of completion of adequate BCG therapy, where: adequate BCG regimen consists of at least 2 courses of BCG where the first course (induction) must have included at least 5 or 6 doses and the second course may have included a re-induction (at least 2 treatments) or maintenance (at least 2 doses), and Cis must be documented or indicated by pathology
BCG-Naïve or BCG-incompletely treated Patients (Phase 2 Only):
NMIBC with current Cis of the bladder, with or without coexisting papillary Ta/T1 NMIBC tumor(s), who are ineligible for or have elected not to undergo cystectomy, where: either: a) incomplete BCG (at least 1 dose) treatment or b) no treatment with BCG but who have previously been treated with at least 1 dose of intravesical chemotherapy following transurethral resection of bladder tumor (TURBT), and Cis must be documented or indicated by pathology
All Patients:
- Patients who have previously been treated with an investigational or approved checkpoint inhibitor (e.g., pembrolizumab) and failed treatment are eligible for inclusion 30 days post-treatment (Phase 1) or 3 months post-treatment (Phase 2).
- Male or non-pregnant, non-lactating female, 18 years or older.
- Women of childbearing potential must have a negative pregnancy test at Screening.
- Female patients of childbearing potential must be willing to consent to using effective double-barrier contraception and for 3 months (or longer in accordance with local regulatory requirements) after their participation in the study ends. Male patients are required to utilize a condom for the duration of the study treatment through 3 months post-dose.
- In Phase 2, for patients with T1 lesions, Screening biopsy must be considered adequate (contain the muscularis layer).
- Performance Status: Eastern Cooperative Oncology Group 0, 1, and 2.
Hematologic inclusion:
- Absolute neutrophil count >1,500/mm3.
- Hemoglobin >9.0 g/dL.
- Platelet count >100,000/mm3.
Hepatic inclusion:
- Total bilirubin must be ≤1.5 x the upper limit of normal (ULN).
- Aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase ≤2.5 x ULN.
- Adequate renal function with creatinine clearance >30 mL/min
- Prothrombin time and partial thromboplastin time ≤1.25 x ULN or within the therapeutic range if on anticoagulation therapy.
- Must have satisfactory bladder function with ability to retain study drug for a minimum of 60 minutes.
- Patient or legally authorized representative must be willing and able to comply with all protocol requirements.
- Must be willing and able to give informed consent.
Exclusion Criteria:
- Any malignancy (other than NMIBC) diagnosed within 1 year of study entry (except basal or squamous cell skin cancers or noninvasive cancer of the cervix) ), or any malignancy that has required therapy for active disease within the last 12 months.
- Concurrent treatment with any chemotherapeutic agent.
- History of partial cystectomy.
- Treatment with pembrolizumab within 30 days (Phase 1) or 3 months (Phase 2) prior to Screening.
- Treatment with last therapeutic agent (including intravesical chemotherapy post-TURBT) within 30 days of Screening.
- Evidence of persistent or ongoing renal failure.
- History of unresolved vesicoureteral reflux or an indwelling urinary stent.
- History of unresolved hydronephrosis due to ureteral obstruction.
- Participation in any other research protocol involving administration of an investigational agent within 30 Days prior to screening or any prior treatment of NMIBC with any investigational gene or immunotherapy agent.
- History of external beam radiation to the pelvis at any time or prostate brachytherapy within the last 12 months.
- History of interstitial lung disease and/or pneumonitis in patients who have previously received a PD-1 or PD-L1 inhibitor therapy.
- Evidence of metastatic disease.
- History of difficult catheterization that in the opinion of the Investigator will prevent administration of EG-70.
- Active interstitial cystitis on cystoscopy or biopsy.
- Active, uncontrolled bacterial, viral, or fungal infection(s) requiring systemic therapy.
- Known human immunodeficiency virus, Hepatitis B, or Hepatitis C infection.
- Significant cardiovascular risk (e.g., coronary stenting within 8 weeks, myocardial infarction within 6 months).
- Consideration by the Investigator that the patient is an unsuitable candidate for the study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Sequential Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Phase 1
Dose escalation phase
|
Patients will receive up to four cycles of EG-70 administered as a bladder instillation of a 50 mL volume of study drug via catheter with a targeted retention time of 60 minutes.One cycle lasts approximately 12 weeks and consists of either a 2-dose (Day 1 and Day 8) or 4-dose (Day 1, Day 8, Day 29 and Day 36) regimen.
Other Names:
|
Experimental: Phase 2
Cohort 1: Recommended Phase 2 dose (RP2D) with eligible BCG-unresponsive NMIBC patients, up to 4 cycles of treatment with EG-70 Cohort 2: RP2D with eligible high-risk NMIBC patients who have been incompletely treated with BCG or are BCG-naïve |
Cohort 1 and Cohort 2: Patients will receive up to 4 cycles of EG-70 at the RP2D defined in Phase 1 administered as a bladder instillation of a 50 mL volume of study drug via catheter with a targeted retention time of 60 minutes.
One cycle lasts approximately 12 weeks.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Phase 1: Nature, incidence, relatedness, and severity of all AEs and SAEs according to the CTCAE v5.0.
Time Frame: Approximately 2 years
|
The type, incidence, relatedness and severity of treatment emergent adverse events of EG-70 as assessed by NCI-CTCAE V5.0 will be monitored.
|
Approximately 2 years
|
Phase 2: Percentage of patients with cystoscopic CR at 48 weeks, based on exam, urine cytology and appropriate biopsies.
Time Frame: Approximately 48 weeks
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Complete response rate will be measured by determining the number of patients without recurrence of high-grade disease.
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Approximately 48 weeks
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Phase 2: Nature, incidence, relatedness, and severity of treatment emergent adverse events (as assessed by CTCAE v5.0)
Time Frame: Approximately 3 years
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The type, incidence, relatedness and severity of treatment emergent adverse events of EG-70 as assessed by NCI-CTCAE V5.0 will be monitored.
|
Approximately 3 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Phase 1: CR rate to EG-70 by cystoscopy at approximately 12 weeks.
Time Frame: Approximately 12 weeks
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To evaluate preliminary efficacy of EG-70 by 12 weeks via cystoscopy
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Approximately 12 weeks
|
Phase 2: CR rate at 12, 24, 36, and 96 weeks
Time Frame: Approximately 12, 24, 36, and 96 weeks
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To further evaluate CR at the efficacy analysis following each cycle.
|
Approximately 12, 24, 36, and 96 weeks
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Phase 2: Duration of response of the responding patients
Time Frame: Approximately 3 years
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Durability will be measured by determining the number of patients without recurrence of high-grade disease.
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Approximately 3 years
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Phase 1: The number of patients who experience a DLT through the end of Cycle 1
Time Frame: Approximately 12 Weeks
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To identify the number of patients who experience a DLT through the end of Cycle 1
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Approximately 12 Weeks
|
Phase 2: Progression-free survival (PFS)
Time Frame: Approximately 3 years
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To evaluate disease-free survival rate
|
Approximately 3 years
|
Collaborators and Investigators
Sponsor
Investigators
- Study Director: Christine Tosone, Ms, RAC, enGene, Inc.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Neoplasms by Histologic Type
- Neoplasms
- Urologic Neoplasms
- Urogenital Neoplasms
- Neoplasms by Site
- Urologic Diseases
- Carcinoma
- Neoplasms, Glandular and Epithelial
- Urinary Bladder Diseases
- Female Urogenital Diseases
- Female Urogenital Diseases and Pregnancy Complications
- Urogenital Diseases
- Male Urogenital Diseases
- Carcinoma in Situ
- Urinary Bladder Neoplasms
- Non-Muscle Invasive Bladder Neoplasms
Other Study ID Numbers
- EG-70-101
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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