Chemopreventive Effect of Omega-3 Polyunsaturated Fatty Acids on the Recurrence of Non-Muscle Invasive Bladder Cancer: A Randomized, Double-Blinded, Placebo-Controlled Clinical Trial
试验速览
- 阶段
- 不适用
- 入组人数
- 110
- 试验地点
- 1
- 主要终点
- Time to first recurrence.
研究概览
简要总结
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.
详细描述
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 (1200 mg) orally, twice a day for at least 12 months. The treatment will start after transurethral resection of bladder tumor (TURBT), as soon as the histopathology will be obtained. The treatment will be discontinued if recurrence develops, unacceptable or serious adverse events occur or according to the patients' request. The second group (Control group): 55 patients will receive placebo twice daily for one year after TURBT. Patients and care providers will be blinded to the medication given.
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Double (Participant, Care Provider)
入排标准
- 年龄范围
- 18 Years 至 90 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients who are at high risk for recurrence of NMIBC after TURBT based on the following tumor characteristics:
- •Stage Ta (G3, multifocal, or ≥ 2 occurrences within 12 months, including the current tumor),
- •Stage T1 (any grade) and/or,
- •Carcinoma in situ (CIS),
- •Without any indication for radical cystectomy.
排除标准
- •Patients with:
- •≥ T2 bladder cancer,
- •Evidence of nodal metastasis,
- •Associated upper tract urothelial carcinoma (UTUC) or
- •Those who refuse.
研究组 & 干预措施
n-3PUFAs group
These patients will receive omega-3 plus (1200 mg) orally, twice a day for at least 12 months. The treatment will start after TURBT, as soon as the histopathology will be obtained. The treatment will be discontinued if recurrence develops, unacceptable or serious adverse events occur or according to the patients' request.
干预措施: n-3PUFAs Treatment (Drug)
Control group
These patients will receive placebo orally, twice a day for at least 12 months. The treatment will start after TURBT, as soon as the histopathology will be obtained. The treatment will be discontinued if recurrence develops, unacceptable or serious adverse events occur or according to the patients' request.
干预措施: Placebo Treatment (Drug)
结局指标
主要结局
Time to first recurrence.
时间窗: 2 years
Time to first recurrence is defined as the length of time from surgery to the first bladder recurrence or until last follow up.
Recurrence-free survival
时间窗: 2 years
Recurrence-free survival is defined as the length of time after treatment of non-muscle invasive bladder cancer that the patient survives without any radiological, histopathological, immunohistochemical or molecular evidence of tumor recurrence.
次要结局
未报告次要终点
研究者
Ahmed Elkashef
Assistant Lecturer of Urology, Urology and Nephrology Center, Principal Investigator
Mansoura University