Overview Omega-3 Polyunsaturated Fatty Acids and Non-Muscle Invasive Bladder Cancer Status: Recruiting Trial end date: 2023-12-01 Target enrollment: Participant gender: Summary The investigators hypothesize that omega-3 polyunsaturated fatty acids (n-3 PUFAs) might have a role in prevention of the recurrence of non-muscle invasive bladder cancer (NMIBC). The patients who are suffering from high-risk NMIBC will be randomly allocated into two groups: The first group (n-3 PUFAs group): 55 patients will receive omega-3 plus twice daily for one year after transurethral resection of bladder tumor (TURBT). The second group (Control group): 55 patients will receive placebo twice daily for one year after TURBT. All patients will receive intravesical Bacillus Calmette-Guérin (BCG) immunotherapy and they will be followed up for two years. The chemopreventive effect of n-3 PUFAs on the recurrence of NMIBC after TURBT will be studied via magnetic resonance imaging (MRI), inpatient cystoscopy, histopathological examination and molecular studies of the resected bladder tissues. Phase: N/A Details Lead Sponsor: Mansoura University