Study of 177Lu-P17-087 and 177Lu-P17-088 Radioligand Therapy for Men with Metastatic Castration-Resistant Prostate Cancer
Evaluating Safety, Dosage, and Imaging-Based Radiation Dose
Led by Peking Union Medical College Hospital · Updated on 2025-10-03
30
Participants Needed
1
Research Sites
108 weeks
Total Duration
AI-Summary
What this Trial Is About
Researchers are evaluating the safety, dosimetry, and preliminary antitumor activity of two new radiopharmaceutical treatments, 177Lu-P17-087 and 177Lu-P17-088, in men with metastatic castration-resistant prostate cancer mCRPC that has progressed despite androgen-suppression therapy or chemotherapy. This early-phase pilot study focuses on measuring the absorbed radiation dose using imaging and assessing side effects to determine the optimal therapeutic dose. Prostate-specific membrane antigen PSMA is targeted due to its presence on prostate tumor cells, with these new compounds designed to improve tumor uptake and blood clearance compared to earlier treatments.
Participants receive a single intravenous injection of either 1.1 GBq 30 mCi of 177Lu-P17-087 or 1.1 GBq 30 mCi of 177Lu-P17-088. Following this, patients are monitored through multiple whole-body planar and SPECTCT imaging sessions at 1.5, 4, 24, 48, 72, 120, and 168 hours post-injection to measure radiation dose and distribution. After this initial safety phase, the study will proceed to a dose-escalation phase with increasing doses across three groups 1.11 GBq, 2.96 GBq, and 4.44 GBq, to further evaluate safety and find the best therapeutic dose.
During the study, participants undergo repeated imaging and laboratory tests to assess radiation doses to organs and tumors, as well as monitoring for hematologic, liver, and kidney side effects. Researchers also track prostate-specific antigen PSA and PSMA responses to treatment. Monitoring continues for about two to three weeks after treatment for safety and response assessments. Total participation duration varies based on study phase and dose escalation steps, with careful observation to establish safe and effective dose levels.
CONDITIONS
Brief Title
177Lu-P17-087/177Lu-P17-088 in Patients With Metastatic Castration-resistant Prostate Cancer
Research Team
Z
Zhaohui Zhu, MD
G
Guochang Wang, MD
Not the Right Trial for You?
Explore thousands of other clinical trials that might be a better match. Sign up to get personalized trial recommendations delivered to your inbox.
Progressive metastatic castration-resistant prostate cancer not responding to androgen-suppression therapy or systemic chemotherapy
Distant metastases with high PSMA expression confirmed on 68Ga-PSMA PET/CT within one week before treatment
You will not qualify if you...
Presence of tumors positive on 18F-FDG PET without matching PSMA uptake
Receipt of other radionuclide therapies within 6 months prior to enrollment
Significant impairment of bone marrow, liver, or kidney function
Hemoglobin level less than 9.0 g/dL
White blood cell count less than 2.5 x 10^9/L
Platelet count less than 100 x 10^9/L
Serum creatinine greater than 100 micromol/L
Your Study Journey
Screening
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person) for eligibility assessments including PSMA PET/CT within one week before treatment
Treatment
Duration - Approximately 1 week
Participants receive a single intravenous dose of either 177Lu-P17-087 or 177Lu-P17-088 and are monitored for safety and dosimetry.
Multiple monitoring visits at 1.5 hours, 4 hours, 24 hours, 48 hours, 72 hours, 120 hours, and 168 hours post-injection
Follow-up
Duration - Up to 3 weeks after treatment
Participants are followed up to assess hematologic, hepatic, renal safety and PSA response after treatment.
Periodic visits during follow-up up to 3 weeks after treatment
How is the study designed?
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
Similar Trials
Study of 177Lu-P17-087 and 177Lu-P17-088 Radioligand Therapy for Men with Metastatic Castration-Resistant Prostate Cancer
Evaluating Safety, Dosage, and Imaging-Based Radiation Dose
Phase III Study of 64Cu-GRIP B PET Imaging for Detecting Granzyme B in Adults with Advanced Genitourinary and Other Solid Tumors
Phase 1 Study of KTX-2001 Alone and With Darolutamide for Men With Metastatic Castration-Resistant Prostate Cancer
Phase 2 Study to Compare the Safety and Effectiveness of ASP5541 Injection Versus Abiraterone Acetate Tablets with PrednisonePrednisolone in Men with Advanced Prostate Cancer
Phase I First-in-Human Study Evaluating Safety and Doses of AZD2284, AZD2287, and AZD2275 in Men With Metastatic Castration-Resistant Prostate Cancer
Phase I Trial of A-CAR032, a CAR-T Cell Therapy for Adult Men with Metastatic Castration-Resistant Prostate Cancer Who Have Had Prior ARPI Treatment
Phase III Study Comparing BNT324 With Docetaxel Plus PrednisonePrednisolone for Men With Metastatic Castration-resistant Prostate Cancer
Phase 1 Trial Testing Oral DS9051b for Advanced or Metastatic Adrenocortical Carcinoma and Metastatic Castration-resistant Prostate Cancer
Phase 2 Study of FG-3246, a CD46-Targeted Antibody-Drug Conjugate, for Treating Metastatic Castration-Resistant Prostate Cancer in Men
Phase I Study of Safety, Dosimetry, and Tolerability of Extended Lutetium 177Lu Vipivotide Tetraxetan Treatment in Chemotherapy-Naive Men With Metastatic Castration-Resistant Prostate Cancer
Have more questions? Get in touch with our team for quick support
Published Research Related To This Trial
Comparison of novel PSMA-targeting [177Lu]Lu-P17-087 with its albumin binding derivative [177Lu]Lu-P17-088 in metastatic castration-resistant prostate cancer patients: a first-in-human study.