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A phase II randomized trial of Lu-PSMA and Stereotactic Radiotherapy versus Radiotherapy alone for oligometastatic prostate cancer (LUST)
EU CTIS ID: 2024-519347-15-00
What this study is testing
12-month PSA-progression-free survival
- Therapeutic exploratory (Phase II)
A plain-language read of the study's public EU CTIS listing. The study team confirms the details.
Who can take part
You may be able to join if
- Patients with prostate cancer must have 1-3 asymptomatic metastatic lesions that are ≤ 5.0 cm or < 250 cm3 documented at CT/MRI or WBD-MRI.
- Patients must be ≥ 18 years of age.
- Patient understands the purpose of the study and the procedures required for it; the patient is willing to participate in the study and to sign a written informed consent document.
- Patients must have an Eastern Cooperative Oncology Group performance status ≤ 2.
- Patients should have a life expectancy of at least 6 months.
- Patients must have normal organ and marrow function as defined as: - Leukocytes >2,000/μL; - Absolute neutrophil count >1,000/μL; - Platelets >75,000/μL; - Total bilirubin within normal institutional limits (this will not apply to patients with confirmed Gilbert’s syndrome); - AST (SGOT)/ALT (SGPT) ≤ 2.5 X institutional upper limit of normal; - Creatinine within normal institutional limits.
You likely can't join if
- No more than 3 years of ADT is allowed, with the most recent ADT treatment having occurred more than 6 months prior to enrollment.
- Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events.
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to 177-Lu-PSMA- I & T or other agents used in the study.
- Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
- Unable to lie flat during or tolerable SABR.
- Other known malignant neoplastic diseases in the patient’s medical history with a disease-free interval of less than 3 years (except for previously treated basal cell carcinoma);
See the full eligibility criteria
Who can join
- Patients with prostate cancer must have 1-3 asymptomatic metastatic lesions that are ≤ 5.0 cm or < 250 cm3 documented at CT/MRI or WBD-MRI.
- Patients must be ≥ 18 years of age.
- Patient understands the purpose of the study and the procedures required for it; the patient is willing to participate in the study and to sign a written informed consent document.
- Patients must have an Eastern Cooperative Oncology Group performance status ≤ 2.
- Patients should have a life expectancy of at least 6 months.
- Patients must have normal organ and marrow function as defined as: - Leukocytes >2,000/μL; - Absolute neutrophil count >1,000/μL; - Platelets >75,000/μL; - Total bilirubin within normal institutional limits (this will not apply to patients with confirmed Gilbert’s syndrome); - AST (SGOT)/ALT (SGPT) ≤ 2.5 X institutional upper limit of normal; - Creatinine within normal institutional limits.
- If the participant engages in sexual activity with a woman of childbearing potential, a condom must be used together with another highly effective method of contraception during the Treatment Period and for 6 months after the last dose of study intervention. The participant must agree not to donate sperm for the purpose of reproduction during the Treatment Phase and for a minimum of 6 months after receiving the last dose of study intervention.
- Highly effective birth control methods are required beginning at the screening visit and continuing until 6 months following last treatment with study drug. Patients and female partner who is of childbearing potential must use 2 acceptable methods of birth control (1 of which must include a condom as a barrier method of contraception, see Appendix F) starting at screening and continuing throughout the study period and for 6 months after final study drug administration. Two acceptable methods of birth control thus include Condom (barrier method of contraception) and one of the following is required ( established use of oral, or injected or implanted hormonal method of contraception by the female partner; placement of an intrauterine device (IUD) or intrauterine system (IUS) by the female partner; additional barrier method like occlusive cap with spermicidal foam/gel/film/cream/suppository in the female partner; tubal ligation in the female partner; vasectomy or other procedure resulting in infertility (eg., bilateral orchiectomy), for more than 6 months.
- PSMA-PET/CT positive scan matching with lesions documented on baseline CT/MRI or WBD-MRI.
- Patients must have had their primary tumor treated with surgery and/or radiation and previous salvage radiation to the prostate bed or pelvis is allowed.
- Patients will be admitted to the therapeutic phase only if diagnostic PET/CT PSMA SUV max is ≥ 3.
- Histologic confirmation of malignancy (primary or metastatic tumor).
- Prostate specific antigen (PSA) ≥ 0.2 ng/mL but ≤ 50 ng/mL and Testosterone ≥ 125 ng/dL.
- PSA doubling time (PSADT) < 15 months. PSADT will be calculated using as many PSA values that are available from time of relapse (PSA > 0.2 ng/dL).
- Patients unfit or refusing ADT.
- Patients may have had prior systemic therapy and/or ADT associated with treatment of their primary prostate cancer. Patients may have had ADT associated with salvage radiation therapy.
What rules you out
- No more than 3 years of ADT is allowed, with the most recent ADT treatment having occurred more than 6 months prior to enrollment.
- Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events.
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to 177-Lu-PSMA- I & T or other agents used in the study.
- Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
- Unable to lie flat during or tolerable SABR.
- Other known malignant neoplastic diseases in the patient’s medical history with a disease-free interval of less than 3 years (except for previously treated basal cell carcinoma);
- Known HIV-positivity, whether or not symptomatic.
- PSMA -PET/CT scan more than 3 months.
- Spinal cord compression or impending spinal cord compression.
- Suspected pulmonary and/or liver metastases.
- Bone metastasis in a femoral bone.
- Previous radiation therapy on the metastatic site.
- Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier. A window of 3 days is permitted.
- Participation in another clinical trial with any investigational agents within 30 days prior to study screening. A window of 3 days is permitted.
- Any condition for which, in the opinion of the investigator, participation would not be in the best interest of the participant.
The study team makes the final eligibility decision.
Questions & answers
Do participants get paid in this trial?
This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part - confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling male, 65+ years, 18-64 years. The study team makes the final eligibility decision.
Explore other conditions
BridgeMD is an information and trial-matching tool - not medical advice, and not the study sponsor. Details come from EU CTIS; the study team decides eligibility.