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Combination Chemotherapy and Radiation Therapy With/Without Surgery In Patients With Stage II/III Bladder Cancer

2018年5月15日 更新者:Radiation Therapy Oncology Group

A Phase II Randomized Trial for Patients With Muscle-Invading Bladder Cancer Evaluating Transurethral Surgery and BID Irradiation Plus Either Paclitaxel and Cisplatin or 5-Fluorouracil and Cisplatin Followed by Selective Bladder Preservation and Gemcitabine/Paclitaxel/Cisplatin Adjuvant Chemotherapy

RATIONALE: Drugs used in chemotherapy work in different ways to stop tumor cells from dividing so they stop growing or die. Radiation therapy (RT) uses high-energy x-rays to damage tumor cells. It is not yet known which regimen of combination chemotherapy plus radiation therapy with or without surgery is more effective in treating bladder cancer.

PURPOSE: Randomized phase II trial to study the effectiveness of two combination chemotherapy regimens and radiation therapy with or without radical cystectomy in treating patients who have stage II or stage III bladder cancer.

調査の概要

詳細な説明

OBJECTIVES:

  • Estimate the safety and tolerability of induction paclitaxel, cisplatin, and radiotherapy or fluorouracil, cisplatin, and radiotherapy followed by consolidation chemoradiotherapy or radical cystectomy and adjuvant gemcitabine, paclitaxel, and cisplatin in patients with operable stage II or III bladder cancer.
  • Estimate the efficacy of these regimens, in terms of complete response, in patients who have undergone prior transurethral resection (TUR).
  • Estimate the efficacy of these regimens after TUR, in terms of preserving the native tumor-free bladder 5 years after therapy, in these patients.
  • Estimate the function of the preserved bladder in patients treated with these regimens after TUR.
  • Determine the value of tumor histopathologic, molecular genetic, and DNA content parameters as possible prognostic factors for initial tumor response and recurrence-free survival in patients treated with these regimens.

OUTLINE: This is a randomized, multicenter study. Patients are stratified according to T stage (T2 vs T3/T4 ). Patients are randomized to one of two treatment arms.

  • Induction therapy (weeks 1-3):

    • Arm I: Patients receive paclitaxel IV over 1 hour on days 1, 8, and 15 and cisplatin IV over 1 hour on days 1-3, 8-10, and 15-17. Patients also receive pelvic radiotherapy twice daily on days 1-5, 8-12, and 15-17.
    • Arm II: Patients receive fluorouracil IV over 24 hours on days 1-3 and 15-17 and cisplatin IV over 1 hour on days 1-3, 8-10, and 15-17. Patients also receive pelvic radiotherapy as in arm I.

Patients in both arms who achieve complete response after induction therapy proceed to consolidation therapy on week 8. Patients with operable pT1 or worse tumor response proceed to radical cystectomy on week 9.

  • Consolidation therapy (weeks 8 and 9):

    • Arm I: Patients receive paclitaxel IV over 1 hour on days 1 and 8 and cisplatin IV over 1 hour on days 1, 2, 8, and 9. Patients also receive pelvic radiotherapy twice daily on days 1-5 and 8-10.
    • Arm II: Patients receive 5-FU IV over 24 hours on days 1-3 and 8-10 and cisplatin as in arm I. Patients also receive radiotherapy as in arm I.
  • Adjuvant chemotherapy (weeks 21-33 or 17-29): Beginning 12 weeks after consolidation therapy or 8 weeks after radical cystectomy, patients receive gemcitabine IV over 30-60 minutes, paclitaxel IV over 1 hour, and cisplatin IV over 1 hour on days 1 and 8. Treatment repeats every 3 weeks for 4 courses.

Patients are followed every 3 months for 1 year, every 4 months for 1 year, every 6 months for 3 years, and then annually thereafter.

PROJECTED ACCRUAL: A total of 96 patients (48 per treatment arm) will be accrued for this study within 3 years.

研究の種類

介入

入学 (実際)

97

段階

  • フェーズ2

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

    • Utah
      • Salt Lake City、Utah、アメリカ、84103
        • LDS Hospital
      • Salt Lake City、Utah、アメリカ、84106
        • Utah Cancer Specialists at UCS Cancer Center

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

120年歳未満 (子、大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

DISEASE CHARACTERISTICS:

  • Histologically confirmed operable primary muscle invasive bladder cancer

    • T2-T4a, NX or N0, M0 (stage II or III)
  • Must have an adequate functioning bladder
  • Must have undergone a prior transurethral resection of the bladder tumor within the past 8 weeks
  • No evidence of tumor-related hydronephrosis
  • No evidence of distant metastases or histologically or cytologically confirmed lymph node metastases
  • Patients with involvement of the prostatic urethra with transitional cell cancer that was visibly completely resected are allowed

    • No evidence of stromal invasion of the prostate

PATIENT CHARACTERISTICS:

Age

  • Not specified

Performance status

  • Zubrod 0-1

Life expectancy

  • Not specified

Hematopoietic

  • Hemoglobin at least 10 g/dL
  • White blood cell (WBC) count at least 4,000/mm^3
  • Absolute neutrophil count at least 1,800/mm^3
  • Platelet count at least 100,000/mm^3

Hepatic

  • Serum bilirubin no greater than 2.0 mg/dL

Renal

  • Serum creatinine no greater than 1.5 mg/dL
  • Creatinine clearance at least 60 mL/min NOTE: If the creatinine clearance is greater than 60 mL/min, creatinine of no greater than 1.8 mg/dL is allowed at the discretion of the study chair

Other

  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception
  • No other malignancy within the past 5 years except nonmelanoma skin cancer, stage T1a prostate cancer, or carcinoma in situ of the cervix
  • Must be able to tolerate systemic chemotherapy with pelvic radiotherapy and radical cystectomy

PRIOR CONCURRENT THERAPY:

Biologic therapy

  • Not specified

Chemotherapy

  • No prior systemic chemotherapy

Endocrine therapy

  • Not specified

Radiotherapy

  • No prior pelvic radiotherapy

Surgery

  • See Disease Characteristics

Other

  • No concurrent drugs that have potential nephrotoxicity or ototoxicity (e.g., aminoglycosides)

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的:Pelvic RT + paclitaxel + cisplatin
Induction: Twice-daily pelvic radiation therapy (RT) with paclitaxel and cisplatin; Consolidation: Twice-daily pelvic radiation therapy with paclitaxel and cisplatin if tumor response is T0/Ta/Tis or radical cystectomy if tumor response is ≥ T1; Adjuvant: gemcitabine, paclitaxel, and cisplatin.
Induction: 15 mg/m2 as a 60-minute infusion on days 1, 2, 3, 8, 9, 10, 15, 16, and 17; Consolidation: 15 mg/m2 as a 60-minute infusion on days 1, 2, 8, and 9; Adjuvant: 35 mg/m2 as a 60-minute infusion on days 1 and 8 of each 21-day cycle for 4 cycles.
Induction: 50 mg/m2 as a 60-minute infusion on days 1, 8, and 15; Consolidation: 50 mg/m2 as a 60-minute infusion on days 1 and 8; Adjuvant: 50 mg/m2 as a 60-minute infusion on days 1 and 8 of each 21-day cycle for 4 cycles.
Induction: External beam irradiation, 1.6 Gy, will be given to the pelvis in the first treatment followed by an interfraction period of at least 4-6 hours. During the second treatment, 1.5 Gy will be delivered to the whole bladder for the first five sessions (7.5 Gy) then to the tumor plus a margin for eight sessions (12. Gy). Consolidation: Consolidation therapy will start 7-14 days following a cystoscopic re-evaluation demonstrating a complete response to the induction therapy. 1.5 Gy (per fraction) will be given to the pelvis in two treatment fractions per day, with an interfraction period of at least 4-6 hours.
Adjuvant: 1000 mg/m2 over 30-60 minutes on days 1 and 8 of each 21-day cycle for 4 cycles.
Operable patients with pT1 or worse tumor response on re-evaluation following induction therapy will have radical cystectomy.
実験的:Pelvic RT + fluorouracil + cisplatin
Induction: Twice-daily pelvic radiation therapy (RT) with fluoruracil and cisplatin; Consolidation: Twice-daily pelvic radiation therapy with fluoruracil and cisplatin if tumor response is T0/Ta/Tis or radical cystectomy if tumor response is ≥ T1; Adjuvant: gemcitabine, paclitaxel, and cisplatin.
Induction: 15 mg/m2 as a 60-minute infusion on days 1, 2, 3, 8, 9, 10, 15, 16, and 17; Consolidation: 15 mg/m2 as a 60-minute infusion on days 1, 2, 8, and 9; Adjuvant: 35 mg/m2 as a 60-minute infusion on days 1 and 8 of each 21-day cycle for 4 cycles.
Induction: External beam irradiation, 1.6 Gy, will be given to the pelvis in the first treatment followed by an interfraction period of at least 4-6 hours. During the second treatment, 1.5 Gy will be delivered to the whole bladder for the first five sessions (7.5 Gy) then to the tumor plus a margin for eight sessions (12. Gy). Consolidation: Consolidation therapy will start 7-14 days following a cystoscopic re-evaluation demonstrating a complete response to the induction therapy. 1.5 Gy (per fraction) will be given to the pelvis in two treatment fractions per day, with an interfraction period of at least 4-6 hours.
Adjuvant: 1000 mg/m2 over 30-60 minutes on days 1 and 8 of each 21-day cycle for 4 cycles.
Operable patients with pT1 or worse tumor response on re-evaluation following induction therapy will have radical cystectomy.
Induction: 400 mg/m2 as a 24-hour infusion on days 1, 2, 3, 15, 16, and 17; Consolidation: 400 mg/m2 as a 24-hour infusion on days 1, 2, 3, 8, 9, and 10.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Treatment Completion Rate
時間枠:From randomization to 11 weeks
Radiation therapy and chemotherapy per protocol or within acceptable variation guidelines based on central review. The study was designed for a two-sided binomial test with 87% power and a significance level of 0.05 with a null hypothesis of a 70% completion rate against the alternative 90% completion rate. For each arm, more than 34 out of 43 evaluable patients completing the treatment, would indicate to reject the null hypothesis for a better treatment completion rate. Fewer than 24 out 43 evaluable patients completing the treatment would indicate to reject the null hypothesis for a worse treatment completion rate. Otherwise, the conclusion would be that there is not enough evidence to reject the null hypothesis of a 70% completion rate in either direction.
From randomization to 11 weeks

二次結果の測定

結果測定
メジャーの説明
時間枠
Complete Response After Induction
時間枠:From randomization to eight weeks
Complete response requires the absence of any tumor in the tumor-site biopsy specimen or elsewhere and a bimanual exam that does not indicate the presence of a tumor mass.
From randomization to eight weeks
Bladder-intact Survival Rate (5 Years)
時間枠:From the date of randomization to five years.
Bladder-intact survival was measured from the date of randomization to occurrence of cystectomy or death. Five-year rates were estimated using the Kaplan-Meier method.
From the date of randomization to five years.

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

捜査官

  • スタディチェア:Robert Dreicer, MD, FACP、The Cleveland Clinic
  • 主任研究者:Anthony L. Zietman, MD、Massachusetts General Hospital
  • スタディチェア:Robert Uzzo, MD、Fox Chase Cancer Center

出版物と役立つリンク

研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2002年12月1日

一次修了 (実際)

2010年10月1日

研究の完了 (実際)

2018年5月14日

試験登録日

最初に提出

2003年3月6日

QC基準を満たした最初の提出物

2003年3月6日

最初の投稿 (見積もり)

2003年3月7日

学習記録の更新

投稿された最後の更新 (実際)

2018年6月15日

QC基準を満たした最後の更新が送信されました

2018年5月15日

最終確認日

2018年5月1日

詳しくは

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。

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