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Phase 2 N=37 Treatment

Radiation Therapy and Chemotherapy in Treating Patients With Stage I Bladder Cancer

Bladder Cancer

Enrolled (actual)
37
Serious AEs
20.6%
Results posted
Apr 2022
Primary outcome: Primary: Percentage of Participants Free From Radical Cystectomy at 3 Years — 88.2 percentage of participants

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
cisplatin (Drug); 5-fluorouracil (Drug); Mitomycin (Drug); Three-Dimensional Conformal Radiation Therapy (Radiation)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
Radiation Therapy Oncology Group
Primary completion
Mar 2021

Outcome Measures

OutcomeResultp-value
PRIMARY
Percentage of Participants Free From Radical Cystectomy at 3 Years
88.2
SECONDARY
Percentage of Participants Free From Radical Cystectomy at 5 Years
88.2
SECONDARY
Percent of Participants With Distant Disease Progression at 3 Years
12.3
SECONDARY
Percent of Participants With Distant Disease Progression at 5 Years
18.7
SECONDARY
Percentage of Participants With Progression to Tumor Stage T2 or Greater at 3 Years
SECONDARY
Percentage of Participants With Progression to Tumor Stage T2 or Greater at 5 Years
SECONDARY
Percentage of Participants Who Have Died From Bladder Cancer at 5 Years (Disease-specific Survival)
25.1
SECONDARY
Percentage of Participants Alive at 3 Years
69.2
SECONDARY
Percentage of Participants Alive at 5 Years
56.4
SECONDARY
Distribution of Participants by Highest Grade Adverse Event
2; 9; 20; 2; 0
SECONDARY
Percentage of Participants With Local Recurrence at 3 Years
32.5
SECONDARY
American Urological Association Total Symptom Score at Baseline and at 3 Years
9.84; 12.00

Summary

RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Specialized radiation therapy that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue. Drugs used in chemotherapy, such as cisplatin, mitomycin C, and fluorouracil, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving radiation therapy together with cisplatin may kill more tumor cells. PURPOSE: This phase II trial is studying how well radiation therapy given together with chemotherapy works in treating patients with stage I bladder cancer.

Eligibility Criteria

Inclusion criteria

  • Pathologically proven diagnosis of carcinoma of the bladder within 105 days prior to registration.
  • Operable patients whose initial tumor is a primary high grade urothelial carcinoma of the bladder exhibiting histologic evidence of invasion into the lamina propria (disease clinical stage T1) or a high grade stage Ta urothelial carcinoma without hydronephrosis; patients who have involvement of the prostatic urethra with urothelial carcinoma and have no evidence of stromal invasion of the prostate remain eligible. If the patient's initial tumor was a high grade stage Ta urothelial carcinoma then his/her recurrent tumor must be a high grade stage T1 urothelial carcinoma to be eligible.
  • Patients must have a high grade urothelial carcinoma stage Ta or T1 that has recurred within 540 days after completion of the initial treatment [TURBT and intravesical Bacillus Calmette Guerin (BCG) immunotherapy] or on initial presentation with a T1 high grade tumor, the participating urologist judged BCG therapy is contraindicated or unsuitable because the patient is found to be intolerant of BCG therapy or because this patient may be immuno-compromised in ways other than that mentioned in Exclusion Criteria 2.8 or because the patient refuses BCG therapy.
  • With the presentations as described in Section 2, the participating urologist judges that the standard next therapy, based on present urologic guidelines for this patient, is radical cystectomy.
  • If radiologic evaluation of a lymph node is interpreted as "positive", this must be evaluated further either by lymphadenectomy or by percutaneous needle biopsy. Patients with histologically or cytologically confirmed node metastases will not be eligible.
  • Patients must have an adequately functioning bladder as judged by the participating urologist and radiation oncologist and have undergone a re-staging TURBT by the participating urologist that showed (or was present in the outside pathology specimen) a high grade stage Ta or T1 tumor with uninvolved muscularis propria in the specimen and, if on prostatic urethral biopsy mucosal carcinoma is present, there is no evidence on biopsy in the prostatic stroma of tumor invasion.
  • Patient must be considered able to tolerate systemic chemotherapy combined with pelvic radiation therapy, and a radical cystectomy (if necessary) by the joint agreement of the participating urologist, radiation oncologist, and medical oncologist.
  • Appropriate stage for protocol entry, based upon the following minimum diagnostic workup within 60 days prior to registration:
  • History/physical examination including weight, performance data, body surface area
  • Zubrod Performance Status ≤ 1
  • Age ≥ 18
  • Complete blood count (CBC)/differential obtained no more than 30 days prior to registration on study, with adequate bone marrow function defined as follows:
  • White blood cell count (WBC) ≥ 4,000/ml
  • Absolute neutrophil count (ANC) ≥ 1, 800 cells/mm3
  • Platelets ≥ 100,000 cells/mm3
  • Hemoglobin ≥ 10.0 g/dl (Note: The use of transfusion or other intervention to achieve Hgb ≥ 10.0 g/dl is acceptable.)
  • If the patient is to be treated with cisplatin, the serum creatinine should be ≤ 1.5 mg%; serum bilirubin of ≤ 2.0 mg%
  • Glomerular filtration rate (GFR) > 25 ml/min [For patients receiving cisplatin, GFR ≥ 60 ml/min]
  • Serum pregnancy test for female patients of childbearing potential, ≤ 72 hours prior to study entry; women of childbearing potential and male participants must practice adequate contraception.
  • Patient must be able to provide study-specific informed consent prior to study entry.

Exclusion Criteria

  • Evidence of tumor-related hydronephrosis
  • Evidence of distant metastases or histologically or cytologically proven lymph node metastases
  • Prior systemic chemotherapy for bladder cancer; prior chemotherapy for a different cancer is allowable
  • A prior or concurrent malignancy of any other site or histology unless the pa
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT00981656). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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