Trial Of Nadofaragene Firadenovec Vs. Observation In Participants With Intermediate Risk Non-Muscle Invasive Bladder Cancer

Overview

About this study

A phase 3b, Randomized, Controlled Trial of Nadofaragene Firadenovec vs. Observation in Participants with Intermediate Risk Non-Muscle Invasive Bladder Cancer (IR NMIBC)

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

* Diagnosed with intermediate risk non-muscle invasive bladder cancer (IR NMIBC) as defined by American Urological Association (AUA)/Society of Urologic Oncology [SUO] Guideline (2020)
* Has undergone adequate transurethral resection of bladder tumor (TURBT; with or without peri-operative chemotherapy) within 60 days prior to randomization:

* Recurrence within 1 year, low-grade Ta
* Solitary low-grade Ta >3 cm
* Low-grade Ta, multifocal
* Solitary high-grade Ta, ≤3 cm
* Low-grade T1

* Patients with T1 disease should undergo resection at the base of the lesion and biopsies should contain muscle fibres.
* Restage TURBT may be done at the discretion of the investigator

Exclusion Criteria:

* Current or previous evidence of muscle invasive (muscularis propria) or metastatic disease presented at the screening visit

High risk NMIBC defined as:

* High-grade T1
* Any recurrent, high-grade Ta
* High-grade Ta >3 cm (or multifocal)
* Any carcinoma in situ (CIS)
* Any Bacillus Calmette-Guérin (BCG) failure in high-grade subject
* Any variant histology
* Any prostatic urethral involvement

Low risk NMIBC defined as:

* First occurrence of low-grade solitary Ta ≤3 cm
* Recurrence of low-grade solitary Ta ≤3 cm >12 months from previous occurrence
* Papillary urothelial neoplasm of low malignant potential

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 06/23/2026. Questions regarding updates should be directed to the study team contact.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Scottsdale/Phoenix, Ariz.

Mayo Clinic principal investigator

Mark Tyson II, M.D., M.P.H.

Open for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office

(855) 776-0015

Jacksonville, Fla.

Mayo Clinic principal investigator

Timothy Lyon, M.D.

Open for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office

(855) 776-0015

Rochester, Minn.

Mayo Clinic principal investigator

Paras Shah, M.D.

Open for enrollment

Contact information:

Wendy Sundt

(507) 293-4234

sundt.wendy@mayo.edu

More information

Publications

Publications are currently not available
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CLS-20590255

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