Clinical Trial Information GAIN-BCG: Gemcitabine Alternating with Intravesical BCG Randomized Against BCG Alone for Patients with Recurrent High Grade Non-Muscle Invasive Bladder Cancer Protocol Number: A032303 Status: Open Age Group: Adult Treatment Type: Treatment Phase: III NCT ID: NCT07000084 Scope Information Scope: National Disease Site(s): Urinary Bladder Drug(s) Involved: BCG (BCG); Gemcitabine