hypo-IMRT: Twenty fractionation within 4 weeks are performed using hypofractionated intensity-modulated radiation therapy. As for the radiation dose, 2.8-3.2 Gy at a time, total dose 56-64 Gy, to the high-risk target volume, and 2-2.2 Gy at a time, and 40-44 Gy, respectively, to the low-risk target volume.
Study summary
The purpose of this study is to investigate the side effects, quality of life, and treatment effects of concurrent chemo-hypofractionated intensity-modulated radiation therapy in bladder cancer.
Twenty fractionation within 4 weeks are performed using hypofractionated intensity-modulated radiation therapy. As for the radiation dose, 2.8-3.2 Gy at a time, total dose 56-64 Gy, to the high-risk target volume, and 2-2.2 Gy at a time, and 40-44 Gy, respectively, to the low-risk target volume. It aims to include more than 97% of the total dose to cover the entire PTV, and the minimum dose in the PTV is not lower than 95% of the prescribed dose, and the maximum dose does not exceed 107% of the prescribed dose. Chemotherapy before and after radiotherapy can be performed depending on the institutional policy. Among radiotherapy, chemotherapy is performed with platinum-based agents (cisplatin, carboplatin, etc.), and is administered once a week for a total of 3 or more.
Eligibility
Sex
ALL
Min age
20 Years
Max age
—
Healthy volunteers
No
Inclusion Criteria:
1. Patients diagnosed with bladder cancer histologically
2. Patients with muscle layer involvement in transurethral resection (pT2 or higher)
3. Patients without pelvic lymph node metastasis by computed tomography (CT) or magnetic resonance images (MRI) of the pelvis.
4. Patients who want bladder conservation treatment
5. Patients over 20 years old
6. Patients with Zubrod (ECOG) performance status 0-1 within 1 week prior to participation in the study
7. Patients who have signed the consent form with sufficient information by the patient or guardian
8. Patients with hematologic findings capable of concurrent chemoradiotherapy
Exclusion Criteria:
1. Patients with previous pelvic radiotherapy history
2. Pregnant or lactating patients
3. Patients with distant metastasis
4. Patients judged to be difficult to conserve bladder due to extensive non-invasive/invasive bladder cancer
5. Patients who have not been disease-free for more than 5 years after diagnosis of cancer (excluding thyroid cancer, non-melanoma skin cancer, T1a prostate cancer, and intraepithelial cancer of the cervix)
6. Patients with untreated severe acute disease
7. Patients predicted to have a high probability of radiation complications due to connective tissue disease (lupus, scleroderma, etc.)
Primary outcome measure(s)
bladder preservation disease-free survival rate — 2 years after participation of all subjects Two-year bladder preservation disease-free survival rate when concurrent chemo-hypofractionated intensity-modulated radiation therapy
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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