Prostate Cancer Clinical Trial
Official title:
Cystoprostatectomy Versus Radiotherapy Combined With Androgen Deprivation Therapy for the Treatment of Clinical T4 Prostate Cancer With Bladder Invasion: a Multicentre, Prospective, Open, Randomized Clinical Trial
Prostate cancer is the most common male cancer in global, which accounts for 19% of the total and poses great hazards to male health. Unfavorable factors including prostatic specific antigen (PSA) >20 ng/ml, Gleason score >8, and T3/4 are significantly associated with biological recurrence, metastatic progression and poor survival in prostate cancer. In clinical T4(cT4) prostate cancer with bladder invasion patients, symptoms of hematuria, urinary urgency, bladder outlet and ureteral obstruction, and pelvic pain led to a poor quality of life. Radical prostatectomy is crucial for the multimodal treatment of prostate cancer, but limited proof demonstrated enough advantages of the surgery in T4 tumor with bladder invasion. Radical prostatectomy could hardly meet both demands of local tumor control and urinary function. Treatment trends suggest that patients with T4 prostate cancer be treated with radiotherapy combined with androgen deprivation therapy (ADT). However, surgery enables a full pathological assessment of the tumor characteristics and thus a better estimation of the risk of recurrence. Cystoprostatectomy offers an option of surgical treatment for T4 prostate cancer with bladder invasion,which can well remove the bladder and urethra, decrease the risk of positive surgical margins and avoid urination complications. There is no consensus regarding optimal treatment of T4 prostate cancer and no evidence of oncological outcomes of cystoprostatectomy from clinical trials. A randomized clinical trial comparing two multimodal treatment regimens of cystoprostatectomy and radiotherapy for T4 prostate cancer with bladder invasion is therefore warranted.
1. Determine the subjects Patients were determined in strict accordance with the inclusion and exclusion criteria, and the trial process and significance were explained to the patients, and informed consent was signed. 2 Randomization The patients were randomly assigned to surgery group or radiotherapy group according to the random number table. 3 Implementation Process The intervention measures were divided into operation group and non-operation group. The operation group was given cystoprostatectomy + expanded pelvic lymph node dissection + urinary diversion. The non-operation group received radiotherapy plus androgen deprivation therapy. 4 Follow-up Process Follow-up was performed once a month (12 times in total) in the first year after surgery or radiotherapy, once every 3 months (4 times in total) in the second year, and once every six months after 2 years. Follow-up items included the presence of complications, digital rectal examination, PSA and testosterone levels, liver and kidney function. If digital rectal examination is positive and serum PSA continues to rise, pelvic MRI and bone scan should be performed. Bone pain, regardless of PSA level, should be scanned. FunctionalAssessment of Cancer Therapy-General (FACT-G; FunctionalAssessment of Cancer Therapy-Prostate, FACT-P) and color Doppler ultrasonography of bilateral kidney and ureter were performed once every six months after 1 year. Pelvic MRI, bone scan, chest radiograph, and color ultrasound of abdomen (liver, bile, pancreas and spleen) were examined once a year after surgery or radiotherapy. Other follow-up examination items or follow-up time can be selected according to special circumstances. The patients were followed up for at least 10 years after surgery or after the end of radiotherapy. 5. Monitoring and management of recurrence, metastasis and complications If biochemical recurrence after surgery (PSA level two consecutive acuity 0.2 ng/ml, two test interval of 2 weeks) or local recurrence, choose save radiotherapy, 8 Gy single, range is the whole pelvic, continued progress or control again after recurrence after radiotherapy are endocrine therapy, and its solution for than carew amine (50 mg 1 time, 1 times a day, Orally) + Goserelin (3.6mg once every 28 days, subcutaneously injected into the anterior abdominal wall); Patients with extensive metastasis after surgery were treated directly with endocrine therapy (bicalutamide 50mg once daily, orally) plus gosererin (3.6mg once every 28 days, subcutaneously injected into the anterior abdominal wall). The remaining tumor progression was managed according to the recommendations of authoritative guidelines at home and abroad. The time of occurrence, name of complication, patient status, Clavien-Dindo complication classification, treatment measures and procedures, and treatment results were recorded. Complications were managed according to the recommendations of the guidelines and the experience of our unit. ;
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