Patients With Metastasized Prostate Cancer Whose Prostate-specific Antigen-level (PSA) Remains >0,2 ng/ml After Six Months of Dual Antihormonal Therapy Will Receive Radiotherapy to the Prostate and Radiotherapy to Refractory Metastases (RIALTO)
RIALTO: Radiotherapy in Primarily Metastasized Prostate Cancer - Image-guided Local AbLaTion of Prostate and Oligoresidual Disease
The goal of this clinical trial is to learn if radiotherapy to the prostate and PET-positive (positron emission tomography) metastasis will lead to radiological response on PSMA-PET (prostate specific membrane antigen-PET). Patients who receive combined androgen deprivation therapy for de novo metastasized prostate cancer and show an incomplete PSA-response (>0,2 ng/ml after six months) and exhibit at least four bone metastases on PET-imaging at this time point (without metastases to organs) can take part in this study.
The main questions it aims to answer are:
• Does radiotherapy to the prostate and PET-positive metastases lead to a radiological response one year after radiotherapy? Researchers will analyze PET-imaging prior to radiotherapy to the prostate and metastases and one yeare thereafter.
Participants will:
- Continue taking combined androgen-deprivation therapy
- Receive a total of three PSMA-PET/CT scans
- Receive radiotherapy to the prostate and PET-positive metastases
- Visit the clinic every three months for 36 months
- Complete quality of life questionnaires at every visit
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
研究の種類
研究の種類
入学 (推定)
入学
段階
段階
- 適用できない
連絡先と場所
研究連絡先
研究連絡先
- 名前:Elgin Hoffmann, MD, Dr. med.
- 電話番号:4970712982165
- メール:ROinfo@med.uni-tuebingen.de
研究連絡先のバックアップ
- 名前:Maximilian Niyazi, MD, Prof. Dr. Dipl.-Phys.
参加基準
適格基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Prostate adenocarcinoma
- de novo metastasized prostate cancer (at least 4 osseous metastases +/- lymphonodal metastases)
- first-line combined antihormonal therapy (ADT + ARPI) for six months
- PSA > 0,2 ng/ml after six months of combined ADT/ARPI therapy
- multimetastasized disease stage without visceral metastases on imaging at first diagnosis (PET, CT, or bone scan)
- <16 osseous/lymphnodal metastases on response assessment imaging (PSMA-PET/CT) after six months of combined antihormonal therapy
Exclusion Criteria:
- neuroendocrine histology
- visceral metastases (M1c)
- prior radiotherapy to the pelvis
- PSA < 0,2 ng/ml after 6 months of combined antihormonal therapy
- prior prostatectomy
- contraindication against PSMA-PET/CT and/or radiotherapy to the prostate/metastases
- HIFU or TUR-P within 6 months of study treatment
- other active malignancy two years prior to study inclusion (except skin cancer in remission)
- relevant GU/GI condition (active fistula or other)
- known tumor predisposition syndrome
研究計画
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:他の
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
実験的:Radiotherapy to the prostate and PSMA-PET/CT guided radiotherapy of refractory metastases
Radiotherapy to the prostate and refractory metastases on PSMA-PET/CT
|
Patients will receive radiotherapy to the prostate and to PSMA-PET postivie Metastases
|
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Radiological Progression-Free Survival
時間枠:12 months after radiotherapy of metastases
|
Radiological Progression-Free Survival as determined on PSMA-PET/CT according to RECIP criteria, defined as 30% response in PSA-volume
|
12 months after radiotherapy of metastases
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Lesion-specific response on imaging
時間枠:12 months after radiotherapy to metastases
|
12 months after radiotherapy to metastases
|
|
|
Prostate specific antigen (PSA)
時間枠:up to 36 months after radiotherapy to the prostate
|
Prostate specific antigen
|
up to 36 months after radiotherapy to the prostate
|
|
Objective response rate
時間枠:12 months after radiotherapy to metastases
|
12 months after radiotherapy to metastases
|
|
|
Time to next systemic therapy
時間枠:up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Overall survival
時間枠:up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Failure-free survival
時間枠:up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Progression-free survival
時間枠:up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Metastasis-free survival
時間枠:up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Prostate-cancer specific survival
時間枠:up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
その他の成果指標
その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Quality of life questionnaires
時間枠:up to 36 months after radiotherapy of the prostate
|
EORTC QLQ-C30 Prostate
|
up to 36 months after radiotherapy of the prostate
|
|
Organ-specific side effects
時間枠:up to 36 months after radiotherapy of the prostate
|
CTCAEv5
|
up to 36 months after radiotherapy of the prostate
|
|
Organ function
時間枠:up to 36 months after radiotherapy of the prostate
|
IPS-Score
|
up to 36 months after radiotherapy of the prostate
|
|
Choice of next systemic therapy
時間枠:up to 36 months after radiotherapy to the prostate
|
Documentation of systemic treatment in case of progression
|
up to 36 months after radiotherapy to the prostate
|
|
Reason for change in systemic therapy
時間枠:up to 36 months after radiotherapy to the prostate
|
Documentation in case of change in systemic therapy
|
up to 36 months after radiotherapy to the prostate
|
|
Quality of Life questionnaire
時間枠:up to 36 months after end of radiotherapy of the prostate
|
QLQ-PR25
|
up to 36 months after end of radiotherapy of the prostate
|
|
Quality of life questionnaire
時間枠:up to 36 months after radiotherapy to the prostate
|
EQ-D5
|
up to 36 months after radiotherapy to the prostate
|
|
Organ-specific side effects
時間枠:up to 36 months after end of radiotherapy
|
RTOG questionnaire
|
up to 36 months after end of radiotherapy
|
|
Organ function
時間枠:up to 36 months after radiotherapy to the prostate
|
ICIQScore
|
up to 36 months after radiotherapy to the prostate
|
|
Organ-specific function
時間枠:up to 36 months after radiotherapy to the prostate
|
NCI-PRO-CTCAE
|
up to 36 months after radiotherapy to the prostate
|
|
Organ-specific function
時間枠:up to 36 months after radiotherapy to the prostate
|
IIEF
|
up to 36 months after radiotherapy to the prostate
|
協力者と研究者
協力者
協力者
捜査官
捜査官
- 主任研究者:Elgin Hoffmann, MD、Department of Radiation Oncology, University Hospital Tübingen
研究記録日
主要日程の研究
研究開始 (推定)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
その他の研究ID番号
- 430/2025BO1
- DRKS00038018 (レジストリ識別子:Deutsches Register Klinischer Studien (German clinical trial registry))
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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