A Phase 3 interventional study of radiation therapy in Prostate Cancer, sponsored by Swiss Group for Clinical Cancer Research. Completed at 28 sites in 3 countries. Open to male participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-08-28.
Sponsored by Swiss Group for Clinical Cancer Research · Phase 3, Interventional, and Treatment
RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. It is not yet known which radiation therapy regimen is more effective in treating patients with relapsed prostate cancer.
PURPOSE: This randomized phase III trial is studying the side effects of radiation therapy and comparing two radiation therapy regimens in treating patients with relapsed prostate cancer after surgery.
OBJECTIVES:
OUTLINE: This is a multicenter study. Patients are stratified according to Gleason score (≥ 8 vs 7 vs ≤ 6), pathological tumor classification (pT3b vs others), lymphadenectomy performed (yes [pN0] vs no [cN0]), persistent PSA after prostatectomy (detectable [≥ 0.1 ng/mL] vs undetectable [\< 0.1 ng/mL]), PSA at randomization (> 0.5 ng/mL vs ≤ 0.5 ng/mL), participating center, and radiotherapy technique (3-dimensional conformal radiation therapy [3D-CRT] vs intensity-modulated radiation therapy [IMRT]/rotational techniques). Patient are randomized to 1 of 2 treatment arms.
NOTE: *3-dimensional conformal radiation therapy, rotational techniques such as Tomotherapy®, Rapidarc®, or intensity-modulated arc technique and volumetric-modulated arc therapy are all eligible.
Patients complete quality-of-life questionnaires at baseline and at 3, 12, 24, 36, 48, and 60 months after completing study therapy.
After completion of study treatment, patients are followed every 6 months for 3 years and then every 12 months for up to 10 years.
7,046 studies on the registry are indexed under Prostatic Neoplasms; 1,580 are open to participants now.
This study's enrollment of 350 is above the median of 60 across 5,348 interventional studies indexed under Prostatic Neoplasms.
Browse Prostatic Neoplasms studies →Swiss Group for Clinical Cancer Research is the lead sponsor of 106 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
DISEASE CHARACTERISTICS:
Diagnosis of adenocarcinoma of the prostate
Lymph node negative disease
PSA ≤ 2 ng/mL at randomization
PATIENT CHARACTERISTICS:
No severe or active co-morbidity likely to impact on the advisability of dose-intensive salvage radiotherapy, including any of the following:
PRIOR CONCURRENT THERAPY:
INCLUSION CRITERIA
EXCLUSION CRITERIA
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Biopsy and archival tissue
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
COPD
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Arm A: 64 Gy (32 x 2 Gy) without hormonal treatment
Radiation: radiation therapy
Arm B: 70 Gy (35 x 2 Gy) without hormonal treatment
Radiation: radiation therapy
RT in the standard arm A will be administered to a total dose of 64 Gy in 32 fractions of 2 Gy over 6.4 weeks. RT in the experimental arm B will be administered to a total dose of 70 Gy in 35 fractions of 2 Gy over 7 weeks. Megavoltage equipments with nominal photon energies ≥ 6 MV are required. Rotational techniques such as Tomotherapy®, Rapidarc®, intensity-modulated arc technique (IMAT) and volumetric-modulated arc therapy (VMAT) will also be eligible. The patient will be treated in an isocentric setting and all fields will be applied for 5 days per week for the total RT duration.
Freedom from biochemical progression
Time frame: from the day of trial randomization to the day of either first recorded biochemical progression, clinical progression or death due to clinical progression up to 10 years.
Clinical progression-free survival
Time frame: from the day of randomization to the day of the first record of either local or regional recurrence, distant recurrence, start of hormonal treatment, or death due to any cause up to 10 years.
Time to hormonal treatment
Time frame: time from trial randomization to start of hormonal treatment up to 10 years.
Prostate cancer-specific survival
Time frame: time from trial randomization to the date of death due to prostate cancer up to 10 years.
Overall survival
Time frame: time from trial randomization to the date of death from any cause up to 10 years.
Acute and late gastrointestinal and genitourinary toxicity according to CTCAE v 4.0
Time frame: occurring during treatment and up to 3 months after completion of treatment. Late toxicity is defined as occurring later than 3 months after end of treatment.
Plan to share: No
This study is completed, as verified in Aug 2024. You cannot join it, but the record below documents what was studied.
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