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
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
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
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)
武器と介入
参加者グループ / アーム |
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
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
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
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
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)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
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
詳しくは
本研究に関する用語
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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