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
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Elgin Hoffmann, MD, Dr. med.
- Telefonnummer: 4970712982165
- E-Mail: ROinfo@med.uni-tuebingen.de
Studieren Sie die Kontaktsicherung
- Name: Maximilian Niyazi, MD, Prof. Dr. Dipl.-Phys.
Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Sonstiges
- Zuteilung: N / A
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
|
Experimental: 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
|
Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Radiological Progression-Free Survival
Zeitfenster: 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
|
Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Lesion-specific response on imaging
Zeitfenster: 12 months after radiotherapy to metastases
|
12 months after radiotherapy to metastases
|
|
|
Prostate specific antigen (PSA)
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
Prostate specific antigen
|
up to 36 months after radiotherapy to the prostate
|
|
Objective response rate
Zeitfenster: 12 months after radiotherapy to metastases
|
12 months after radiotherapy to metastases
|
|
|
Time to next systemic therapy
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Overall survival
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Failure-free survival
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Progression-free survival
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Metastasis-free survival
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
|
|
Prostate-cancer specific survival
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
up to 36 months after radiotherapy to the prostate
|
Andere Ergebnismessungen
Andere Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Quality of life questionnaires
Zeitfenster: 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
Zeitfenster: up to 36 months after radiotherapy of the prostate
|
CTCAEv5
|
up to 36 months after radiotherapy of the prostate
|
|
Organ function
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
EQ-D5
|
up to 36 months after radiotherapy to the prostate
|
|
Organ-specific side effects
Zeitfenster: up to 36 months after end of radiotherapy
|
RTOG questionnaire
|
up to 36 months after end of radiotherapy
|
|
Organ function
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
ICIQScore
|
up to 36 months after radiotherapy to the prostate
|
|
Organ-specific function
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
NCI-PRO-CTCAE
|
up to 36 months after radiotherapy to the prostate
|
|
Organ-specific function
Zeitfenster: up to 36 months after radiotherapy to the prostate
|
IIEF
|
up to 36 months after radiotherapy to the prostate
|
Mitarbeiter und Ermittler
Sponsor
Sponsor
Mitarbeiter
Mitarbeiter
Ermittler
Ermittler
- Hauptermittler: Elgin Hoffmann, MD, Department of Radiation Oncology, University Hospital Tübingen
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- 430/2025BO1
- DRKS00038018 (Registrierungskennung: Deutsches Register Klinischer Studien (German clinical trial registry))
Plan für individuelle Teilnehmerdaten (IPD)
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Beschreibung des IPD-Plans
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