Intravesical Bacillus Calmette-Guérin (BCG) therapy is the standard adjuvant treatment for patients with intermediate- and high-risk non-muscle-invasive bladder cancer (NMIBC). However, BCG therapy frequently induces local bladder irritation symptoms including urinary frequency, urgency, dysuria, hematuria, and suprapubic pain, which may reduce quality of life and lead to treatment interruption. Blad-Care™ is an intravesical therapy containing hyaluronic acid and chondroitin sulfate, key components of the urothelial glycosaminoglycan (GAG) layer. Restoration of the GAG layer may protect the bladder mucosa and reduce inflammation-induced bladder irritation symptoms. This prospective randomized study aims to determine whether early administration of intravesical Blad-Care during BCG induction improves BCG-induced bladder toxicity compared with delayed administration after completion of BCG induction therapy.
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Change from baseline in the combined Interstitial Cystitis Symptom Index (ICSI) and Interstitial Cystitis Problem Index (ICPI) score
Timeframe: Baseline (Week 0), after 3rd BCG instillation (Week 3), after 6th BCG instillation (Week 6), and 2 months after completion of BCG therapy (Week 14).