[18F]-Fluoro-2-Deoxy-D-Glucose and -[18F] Dihydro-Testosterone Pet Imaging in Patients With Progressive Prostate Cancer

This study will use PET scans, which is a type of x-ray test that uses a radiotracer, to see whether these scans may be better able to find places in the body where your prostate cancer may have spread.

A Feasibility Study of Hypoxia Imaging in Patients With Prostate Cancer Using Positron Emission Tomography (PET) With 18F-Fluoroazomycin Arabinoside (18F-FAZA)

The purpose of this study is to look for low levels of oxygen (hypoxia) in prostate cancer using a special x-ray test called a positron emission tomography (PET)scan. Hypoxia may have an effect on how prostate cancer grows and responds to treatments like radiotherapy and chemotherapy. The use of PET scans to measure hypoxia may be better and simpler than the methods used previously.

Phase II Study: [18F]DCFPyL PET/MRI for Personalizing Prostate Cancer Subclinical Metastatic Ablative MR-guided Radiotherapy (MRgRT)

In the clinical scenario of recurrent prostate cancer (PCa) post local therapy, current standard studies (bone scan and computed tomography) commonly fail to identify the recurrent disease location. In this study the investigator aims to prospectively map recurrent disease with the unique combination of whole-body MR anatomical imaging combined with a new high-sensitivity and PCa-specific PET probe (PSMA-targeted: [18F]DCFPyL) to provide precise localization information to target disseminated tumor deposits in men presenting with rising PSA after prostatectomy and radiotherapy (maximal local therapies). Moreover, we will consequently treat all identified disease with image-guided stereotactic ablative radiotherapy (SABR), which has shown tantalizing results achieving excellent tumor eradication rates with minimal toxicities. This study is uniquely positioned to enable the discovery of new biomarkers and the correlation of prognostic tests (e.g. genomic signatures) from the initial prostatectomy specimen with the PET-MR/CT imaging results and curative-intent treatment outcomes. The significance of the proposed work towards a measurable impact in PCa care is important to emphasize. The study team believes this novel curative-intent approach will transform lives, as opposed to therapies that transiently impact incurable disease stages. Herein, the focus is on patients at the earliest point of the disease spectrum of recurrent PCa after curative-intent treatments. Our hypothesis is that PSMA-targeted [18F]DCFPyL PET-MR/CT allows earlier detection and localization of defined metastatic targets in these patients, at a stage amenable to image-guided curative-intent therapy.

Phase III Trial of Docetaxel vs. Docetaxel and Radium-223 for Metastatic Castration-Resistant Prostate Cancer (mCRPC)

The purpose of this study is to compare any good and bad effects of using radium-223 along with docetaxel chemotherapy treatment versus using docetaxel alone. Earlier studies helped show that the combination is safe, but the combination has not been proven to work better than either drug alone. The goal of this study is to find out if combining docetaxel and radium-223 is better than giving either drug by itself.

PSMA-PET Registry for Recurrent Prostate Cancer

This study aims to institute a province-wide registry leveraging the availability of a new Positron Emission Tomography tracer, [18F]-DCFPyL and PET expertise across Ontario centers to improve our ability to characterize patterns of recurrence and personalize therapies in men with recurrent prostate cancer after primary treatment.

The Use of Nanoparticles to Guide the Surgical Treatment of Prostate Cancer

The purpose of this study is to see whether using the 64Cu-NOTA-PSMA-PEG-Cy5.5-C' dot tracer is a safe way to identify tumor cells before and during surgery for prostate cancer. The researchers want to find out whether PET/MRI scans done after the injection of this investigational tracer are more accurate than the usual imaging scans used to locate deposits of prostate tumor cells. The researchers will study how the tracer travels through your body and where it is distributed. This study is the first time that this tracer will be used in people who are undergoing surgery for prostate cancer.

Prostate Specific Membrane Antigen (PSMA) or Fluciclovine (FACBC) PET/CT Site-Directed Therapy of OLigometASTatic Prostate Cancer (P-Flu-BLAST-PC): A Multicenter Study

OUTLINE: Patients are assigned to 1 of 3 groups. GROUP I: Patients for whom initial fluciclovine or PSMA PET/CT does not reveal any abnormalities outside the prostatic fossa undergo PSA rechecks every 3 months, and undergo fluciclovine or PSMA PET/CT once PSA is > 2 ng/ml. If still no abnormalities are found outside of the prostatic fossa, patients continue to undergo PSA rechecks every 3 months, and undergo fluciclovine or PSMA PET/CT once PSA is > 5 ng/ml. Patients are off study for treatment plan once PSA reaches 10 ng/ml. GROUP II: Patients undergo fluciclovine or PSMA PET/CT and who have =< 3 regions of metastatic disease outside of the prostatic fossa that are amenable to metastasis-directed therapy undergo lymphadenectomy or radiation therapy. Six to ten weeks after surgery, patients receive abiraterone acetate 1000 mg orally (PO) once daily (QD) and prednisone PO QD. Treatment repeats every 4 weeks for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients may start radiation therapy after 2 cycles of abiraterone acetate and prednisone. GROUP III: Patients undergo fluciclovine or PSMA PET/CT and who have > 3 regions of metastatic disease receive abiraterone acetate and prednisone as in Group II. After completion of study treatment, patients are followed up at 37, 49, 61, 73, 85, 97, 109, and 121 weeks, at 36, 42, 48, 54, 60, and 66 months, and then annually thereafter.

Phase II Trial of Radium-223 in Biochemically Recurrent Prostate Cancer

Some men who have been treated for localized prostate cancer with surgery or radiation still show signs of the disease in their blood. This is called biochemically recurrent prostate cancer. Radium-223 is a small molecule. It uses radiation to kill cancer cells and improves survival in advanced prostate cancer. Researchers want to see if it can treat prostate cancer and induced immune changes earlier in the disease when the cancer is only detectable by prostate specific antigen (PSA) in the blood.

The Impact of DNA Repair Pathway Alterations Identified by Circulating Tumor DNA on Sensitivity to Radium-223 in Bone Metastatic Castration-Resistant Prostate Cancer

This phase II study investigates how well radium-223 works in treating patients with castration-resistant prostate cancer than has spread to the bones (bone metastases). Prostate cancer is the most common cancer in men and the second leading cause of cancer death. Furthermore, many men with notably advanced disease have been found to have abnormalities in DNA repair. The purpose of this research is to study the role of a DNA repair pathway in prostate cancer, specifically in response to administration of radium-223, an FDA-approved drug known to cause DNA damage to cancerous cells. Understanding how defects in the DNA repair pathway affects radium-223 treatment of prostate, may help doctors help plan effective treatment in future patients.

AcTION: A Phase I Study of [225Ac]Ac-PSMA-617 in Men With PSMA-positive Prostate Cancer With or Without Prior [177Lu]Lu-PSMA-617 Radioligand Therapy

This is a Phase 1, open-label, international, dose escalation study to evaluate the safety of [225Ac]Ac-PSMA-617 (225Ac-PSMA-617) in men with PSMA-positive prostate cancer who have and have not had prior exposure to [177Lu]Lu-PSMA-617 (177Lu-PSMA-617) or [177Lu]Lu-PSMA I&T (177Lu-PSMA I&T).

2-(3-{1-carboxy-5-[(6-18F-fluoro-pyridine-3-carbonyl)-Amino]-Pentyl}-Ureido)-Pentanedioic Acid (PyL) in Patients With High Risk and Biochemically Recurrent Prostate Cancer

The standard of care imaging of prostate cancer metastases recommended by the National Comprehensive Cancer Network (NCCN), CT of the chest/abdomen/pelvis and bone scan, may be suboptimal. PyL is a novel PET tracer designed to detect prostate specific membrane antigen (PSMA) expressed on prostate cancer cells. PyL PET/CT may provide improved evaluation of clinically significant metastases in patients with prostate cancer.

Bipolar Androgen Therapy (BAT) and Radium-223 (RAD) in Metastatic Castration-resistant Prostate Cancer (mCRPC) (BAT-RAD Study)

This is a single-arm, multicenter open label, international, phase II study of Bipolar Androgen Therapy (BAT) plus Radium-223 (RAD) in men with metastatic castration-resistant prostate cancer (mCRPC). Men with mCRPC with progressive disease (radiographically and/or biochemically) who have been treated with gonadotropin-releasing hormone (GnRH)-analogue (LHRH agonists/antagonists) continuously or bilateral orchidectomy will be enrolled in this study. Previous antiandrogen therapies are permitted, but no more than one (such as abiraterone, enzalutamide, apalutamide, darolutamide). All patients will receive treatment with Radium-223 at a dose of 55 Kilobecquerel (kBq) per kilogram of body weight IV every 28 days, for 6 cycles, plus Testosterone Cypionate 400mg Intramuscular (IM) every 28 days, until progression or unacceptable toxicity.

Prostate Cancer Theranostics and Imaging Centre of Excellence (ProsTIC) Prospective Patient Registry of Men Treated With PSMA Theranostics

This is a descriptive, observational, prospective, open-ended, registry utilising electronic data capture to collect information on the outcomes of men treated with prostate specific-membrane antigen (PSMA) theranostics.

68Ga-PSMA-11 PET in Patients With Prostate Cancer

This trial studies how well 68Ga-PSMA-11 PET/CT scan works in imaging patients with prostate cancer. Diagnostic procedures, such as 68Ga-PSMA-11 PET/CT may find and diagnose prostate cancer and improve monitoring of treatment response.

A Randomized Trial Comparing Conventional "Salvage" Radiotherapy and Individualized 68Ga-PSMA-11 or 18F-PSMA-1007 PET/CT Targeted Treatment in Patients With Biochemical Recurrence After Prostate Cancer Surgery

Less than 50% of patients receiving salvage radiation therapy (SRT) to the pelvis as treatment for prostate cancer relapsing after surgery will achieve undetectable Prostate Specific Antigen (PSA) levels. Despite SRT, two-thirds of patients will again develop elevated PSA, 20% will have distant metastases, and 10% will die from prostate cancer within 10 years. The reason for this is probably preexisting distant metastasis and lymph node metastasises which need to better targeted directly. Additionally , there are well known permanent side effects to SRT. Standard imaging techniques have poor sensitivity detecting recurrence when PSA is below 1.0 ng/ml. The surface protein Prostate-specific membrane antigen (PSMA) is overexpressed on prostate cancer cells and 68Gallium (68Ga)- and 18Fluorine (18F)-targeted radioligands have been developed. PSMA PET/CT is used increasingly but there is limited data of its impact. In this study patients with biochemical relapse of prostate cancer after surgery are randomised to the control or experimental group (1:2) and undergo a PSMA PET/CT scan. The experimental group receives individualised therapy based on the result of the PET/CT. The control group receives standard salvage therapy and the result of the PET/CT is blinded. The patients are followed-up with PSA test and quality of life questionnaires.

PSMA-directed Targeted Alpha Therapy With 225Ac-PSMA-I&T of Castration-resISTant Prostate Cancer (TATCIST). A Phase II Clinical Trial.

The therapy is administered at 8 ± 1week intervals, with the initial activity of 100 kBq/kg (±10%), then de-escalation to 87 kBq/kg (±10%), 75 kBq/kg (±10%) or 50 kBq/kg (±10%) in cases of good response (PSA decline >50%). The route of administration will be Intravenous (I.V.) infusion over approximately 1-3 minutes.

Phase I/II Trial of Pembrolizumab and Androgen-receptor Pathway Inhibitor With or Without 225Ac-J591 for Progressive Metastatic Castration Resistant Prostate Cancer

This is a phase I/II study investigating the combination of 225Ac-J591 (a drug that can deliver radiation to prostate cancer cells) with pembrolizumab (immunotherapy, a drug that increases the immune system's ability to destroy cancer cells). This study will assess whether 225Ac-J591 + pembrolizumab + androgen receptor pathway inhibitor (ARPI) is more effective against prostate cancer than pembrolizumab + ARPI alone.

Using 68Ga-PSMA PET/CT for the Assessment of Osseous Tumor Burden in mCRPC Patients Undergoing 223Ra-dichloride Injections

Primary objective: i.The primary objective is to compare the diagnostic positivity in progression of 68Ga-PSMA PET and Bone scan. Secondary objectives: i.The correlation between PET osseous tumor burden index and Alk-P level ii.The correlation between PET osseous tumor burden index and PSA level

Efficacy of 68Ga PSMA PET in the Diagnosis of Lymph Node Metastasis in Patients With Prostate Cancer: a Single Center Prospective Randomized Controlled Trial

Efficacy of 68Ga PSMA PET / CT in the diagnosis of lymph node metastasis in patients with prostate cancer: a single center prospective randomized controlled trial. To identify and compare the diagnostic efficacy of 68Ga-PSMA PET/CT and mpMRI for lymph nodes in patients with newly diagnosed prostate cancer.

Prostate-Specific Membrane Antigen (PSMA) Guided Approach for bIoCHEmical Relapse After Prostatectomy- A Prospective Observational Study-PSICHE

This observational study was designed to evaluate progression free survival after PSMA-PET/CT based salvage approach for patients affected by biochemical relapse after radical prostatectomy.

Phase II Trial of 18F-DCFPyL Imaging as a Method to Assess Treatment Response to Stereotactic Body Radiation Therapy

Identifying medium- and high-risk prostate cancer early may allow for treatments to work. But identification can be hard. Researchers want to see if a radiotracer used during PET scans can help.

Evaluating in Vivo PARP-1 Expression With 18F-FluorThanatrace Positron Emission Tomography (PET/CT) in Patients With Metastatic Prostate Cancer

Up to 30 men with metastatic prostate cancer will undergo up to 2 FTT PET/CT scans to look at PARP activity in sites of known cancer. Subjects will undergo a baseline scan prior to starting new therapy and a second, optional, post-therapy scan 1-21 days after the start of treatment. Tissue from a clinical or research biopsy will be compared to imaging measures, if available.

PET Imaging Study of 89Zr-DFO-YS5

CD46 is an exciting new therapeutic target in prostate cancer, with the antibody drug conjugate FOR46 under investigation in phase I clinical trials. The hypothesis of the study is that CD46 expression, measured via our novel imaging biomarker, is a characteristic feature of mCRPC, and particularly common in the most lethal forms of the disease including adenocarcinoma and Small-cell neuroendocrine carcinoma (SCNC). These data will provide crucial information about the feasibility of targeting cluster of differentiation 46 (CD46) in mCRPC, will be used guide the development of novel therapeutic and theranostic agents, to help develop treatments that improve outcomes for men with the most lethal forms of prostate cancer.

A Pilot Comparison of 68Ga-P16-093 and 68Ga-PSMA-11 in the Same Group of Primary Prostate Cancer Patients

Prostate-specific membrane antigen (PSMA)-targeted PET imaging with 68Ga-labeled compounds is able to provide superior sensitivity and specificity to detect primary prostate tumor and its metastases, like the most widely studied 68Ga-PSMA-11. This pilot study was evaluate the diagnostic performance of 68Ga-P16-093, a novel radiopharmaceutical targeting PSMA, which was compared with 68Ga-PSMA-11 in the same group of primary prostate cancer patients.

A Phase 1 Open-label, Dose-finding Multi-center Trial of [177Lu]Ludotadipep in Metastatic Castration-resistant Prostate Cancer Patients, Followed by an Open-label, Repeat Dose, Multi-center Phase 2a Trial to Assess Safety and Efficacy

Phase 1: The objective of the Phase 1 part of the clinical trial is to verify safety and tolerability (dose-limiting toxicity [DLT], maximum tolerated dose [MTD]) of a single 3.7 Giga-Becquerel (GBq) dose with the potential for one dose level de-escalation to 2.775 GBq if necessary, to determine the recommended [177Lu]Ludotadipep dose for use in the Phase 2a part of the trial. Phase 2a: The objective of the Phase 2a part of the trial is to evaluate safety and efficacy for repeated administration of the recommended [177Lu]Ludotadipep dose. The Recommended Phase 2 dose (RP2D) will be based on the study results from the Phase 1 trial in South Korea upon consultation with the FDA.

68Ga-RM26-RGD PET/CT Imaging in the GRPR and αvβ3 Positive Tumor Patients

Based on the high expression of specific receptors on the surface of diseased tissues and neovascularization, noninvasive targeted molecular imaging can be used to visualize lesions in vitro by combining specific ligands labeled with short half-life isotopes. In this study, a novel dual-target imaging agent 68Ga-RM26-RGD was used for clinical study of tumor PET/CT imaging to further verify its clinical application value.

A Study of Prospective Monitoring of Subjects With Biochemically Recurrent Prostate Cancer Using 18F-DCFPyL

Prostate cancer is the second leading cause of cancer-related death in American men. The disease recurs in up to 50,000 men each year after their early-stage disease was treated; however, at this stage, imaging scans are often unable to find the disease in the body. In this natural history study, researchers want to find out if a new radiotracer (18F-DCFPyL) injected before positron emission tomography (PET) imaging can help identify sites in the body with cancer.

Safety and Dosimetry of 177Lu-PSMA-EB-01 in Patients With Metastatic Castration-resistant Prostate Cancer

This is a pilot study to assess the safety and measure image-based absorbed dose of 177Lu-PSMA-EB-01, a new PSMA-specific radiopharmaceutical, in patients with metastatic castration resistant prostate cancer (mCRPC) who will undergo radioligand therapy (RLT). All patients underwent 68Ga-PSMA and 18F-FDG PET/CT for selection and were randomly divided into three groups of 3 people each.The three groups received an approximately 1.11 GBq (30mCi), 1.85 GBq (50 mCi) and 2.59 GBq (70mCi) of 177Lu-PSMA-EB-01 up to 2 cycles, respectively.

A Phase Ib Dose-Escalation Study of Cabozantinib in Combination With Lutetium-177 (177Lu)-PSMA-617 in Patients With Metastatic Castration-Resistant Prostate Cancer (mCRPC)

This is an open-label, phase 1b dose-escalation study of cabozantinib in combination with 177Lu-PSMA-617 in subjects with mCRPC. The primary hypothesis is that cabozantinib with 177Lu-PSMA will be safe and have efficacy in patients with mCRPC. The dose-escalation phase (Part 1) will assess the rate of dose-limiting toxicities (DLTs) during the DLT evaluation period and identify the MTD and/or recommended dose and schedule for the subsequent expansion phase (Part 2).

A First-in-Human, Phase I/II PET Imaging Study of 64Cu-GRIP B, a Radiotracer Targeting Granzyme B, in Patients With Advanced Genitourinary Malignancies

This is a first-in-human phase I/II imaging study of 64Cu-GRIP B PET in patients with advanced genitourinary (GU) malignancies. The tracer is designed to detect extracellular granzyme B as it is secreted by activated immune cells in the tumor microenvironment, which may highlight tumors that will regress on treatment with immunomodulatory therapies. The study population is focused on genitourinary malignancies, including renal cell and urothelial cancer, two tumor types with high mutational burden and tumor infiltrating lymphocytes compared to other tumor types, and have a predictable response rate at the population level to immune checkpoint inhibitors.

Phase I Dose Escalation Study to Evaluate Tolerability and Safety of 225Ac-PSMA I&T in Patients With Metastatic Prostate Cancer

225Ac-PSMA I&T is a radiopharmaceutical for therapy of prostate cancer. PSMA is overexpressed on prostate cancer cells. Actium-225 is an alpha emitting radionuclide. When PSMA I&T is labelled with Actium-225, it can be applied as therapy for prostate cancer.

A Study to Evaluate 68Ga-P3 PET/CT Imaging of PSMA Expression in Prostate

Prostate-specific membrane antigen (PSMA) is a type II transmembrane glycoprotein that consists of 750 amino acids. It is highly expressed on most prostate cancer cells and neovascular endothelial cells of tumors, making PSMA a highly specific and significant imaging target for malignancies. [68Ga]P3, a novel molecular probe of PET imaging agent that targets PSMA, can be used in the diagnosis and research of a wide variety of PSMA high-expression malignanciesr.

Phase II Trial of Targeted Radiation With no Castration for Mcrpc

This trial tests if the combination of comprehensive metastasis directed therapy delivered by a precision form of external beam radiotherapy (stereotactic ablative radiotherapy), combined with PSMA targeted radiopharmaceutical therapy and cessation of castration, and then followed by testosterone replacement, is an effective treatment for metastatic castration resistant prostate cancer. All patients will be treated with stereotactic ablative radiotherapy and PSMA targeted radiopharmaceutical therapy with cessation of castration. Half of patients are randomized to either receive, or not receive, subsequent testosterone replacement.

Phase 1/2 Clinical Study to Evaluate the Safety, Tolerability, Radiation Dosimetry and Preliminary Efficacy of Lutetium Lu 177 JH020002 Injection in Patients With Advanced Prostate Cancer

The study is being conducted to evaluate the safety, tolerability, pharmacokinetics, radiation dosimetry, and preliminary efficacy of Lutetium Lu 177 JH020002 Injection in adult patients with advanced prostate cancer.

68Ga-NOTA-PEG2-RM26 PET/CT: Tracer Biodistribution and Uptake in Different Kinds of Cancer With Gastrin-Releasing Peptide Receptor (GRPR) Overexpression

The gastrin-releasing peptide receptor (GRPR), also known as bombesin receptor subtype II (BB2), is a member of the G protein-coupled receptor family of bombesin receptors. GRPR is over-expressed in various types of human tumors. RM26, a GRPR antagonist with high affinity, was discovered by peptide backbone modification of bombesin analogues. To target gastrin-releasing peptide receptor in human neoplastic cells NOTA-PEG2-RM26 was synthesised and then labeled with 68Ga. An open-label whole-body PET/ CT study was designed to investigate the safety and dosimetry of 68Ga-NOTA-PEG2-RM26 and to assess its clinical diagnostic value in patients with cancer.

Monocentric Observational Study on the Diagnostic and Prognostic Role of 18F-PSMA PET (PET/CT and PET/MR) in Prostate Cancer

The general objective of this retrospective and prospective study is to evaluate the diagnostic and prognostic role of a quantitative analysis of PET images with 18F-PSMA in all stages of the disease in patients with prostate cancer. To this end, both imaging parameters commonly used in clinical practice and the contribution of radiomic features will be investigated. The latter are quantitative features extracted from biomedical images, and are believed to be able to provide information, otherwise impossible to investigate, useful for the characterization of various pathologies. This methodology is very promising, but also recent and therefore little studied and standardized. Our objective is also to investigate how to optimize it from a purely methodological point of view.

Minority-Inclusive Imaging Biomarker-Based End of Therapy Trial for 177Lu-PSMA-617, a Randomized De-Escalation Theranostic Trial for Metastatic Castrate Resistant Prostate Cancer

This phase II trial studies how to improve the usage of Lu 177 vipivotide tetraxetan (177Lu-prostate-specific membrane antigen [PSMA]-617) for treating patients with castration-resistant prostate cancer that has spread from where it first started (primary site), to other places in the body (metastatic) utilizing a treatment pause after 5 cycles of therapy versus standard continuous treatment for 6 cycles. Lutetium is a radioligand therapy (RLT). RLT uses a small molecule (in this case 177Lu-PSMA-617) that carries a radioactive component to destroy tumor cells. When lutetium is injected into the body, it attaches to the PSMA receptor found on tumor cells. After lutetium attaches to the PSMA receptor, its radiation component destroys the tumor cell. Giving 177Lu-PSMA-617 for 5 cycles versus 6 cycles may better treat patients with metastatic castrate resistant prostate cancer.

A Study to Evaluate the Human Biodistribution and Dosimetry of the Radionuclide Labeled ZT-111 in Patients With Metastatic Prostate Cancer

This study is to evaluate the safety, biodistribution, radiation dosimetry and tumor uptake of the [131I]/[18F]/[68Ga]ZT-111 in patients with PSMA positive metastatic prostate cancer.

Phase 1 Trial Assessing Safety, Maximum Tolerated Dose, and Patient-Specific Dosimetry of [177Lu]Lu-LNC1011 in Metastatic Castration-Resistant Prostate

[177Lu]Lu-LNC1011 is a novel long-circulating PSMA therapeutic probe. This study represents the first human investigation, aiming to explore its maximum tolerated dose (MTD), safety, dosimetry, and initial treatment efficacy in patients with metastatic castration-resistant prostate cancer (mCRPC).This study employed an open-label, non-randomized design, representing the first human trial of its kind. It utilized a standard 3+3 dose-escalation approach, focusing on patients with metastatic castration-resistant prostate cancer, initiating treatment at a dose of 1.85 GBq over a 6-week period. Subsequent cohorts underwent sequential 50% dose escalations until the observation of dose-limiting toxicity (DLT).

Neoadjuvant [177Lu]Lu-PSMAI&T Radioligand Therapy (PSMA-RLT) for Patients With Oligometastatic Prostate Cancer Diagnosed Using [68Ga]Ga-PSMA-11 PET Imaging Followed by Radical Prostatectomy: A Prospective Phase II Pilot Study

Prospective single-center phase II study to evaluate the PSA, imaging and pathological response, as well as oncological outcomes of systemic radioligand therapy [177Lu]Lu-PSMAI&T (PSMA-RLT) in patients planned for radical prostatectomy (RP) for oligometastatic prostate cancer (PCa) diagnosed using [68Ga]Ga-PSMA-11 PET examination. Ten patients with oligometastatic primary PCa diagnosed using [68Ga]Ga-PSMA-11 PET-CT/MRI imaging will be included in this study.

Fully Hybrid 18F-PSMA PET/MRI as One-stop Approach for the Diagnosis of Clinically Significant Prostate Cancer.

This project aims to evaluate the role of fully hybrid PET/MRI with 18FPSMA and multiparametric MR imaging (mpMRI) as one-stop approach for the diagnosis of clinically significant prostate cancer (csPCa). Our main hypothesis is that adding 18F-PSMA PET to mpMRI prior to biopsy, will reduce the number of false negative findings, while at the same time, allowing also to reduce the number of unnecessary prostate biopsies in patients with low-risk, clinically indolent PCa.

The Prognostic Value of AI-based Measurements of Tumour Burden in PSMA PET-CT in Patients With Prostate Cancer

The primary aim of the present study is to evaluate how automatically calculated (by an AI-based method) tumour burden, measured as tumour volume (TV) and as tumour uptake (TU: TV x SUVmean) in the prostate/prostate bed, pelvic lymph nodes, distant lymph nodes, bone and as the total tumour burden predicts overall survival (OS) in patients with prostate cancer (newly diagnosed and patients with biochemical recurrence).

99mTc-QULIC-5-P1 SPECT Imaging in Patients With Prostate Cancer and Compared With 68Ga-PSMA-11 PET

99mTc-QULIC-5-P1 is a new radiotracer targeting PSMA, which is promising as an excellent imaging agent applicable to PSMA positive prostate cancer. This study will investigate the safety, biodistribution and potential usefulness of 99mTc-QULIC-5-P1 SPECT imaging for the diagnosis of lesions in PSMA positive prostate cancer.

Effect of 18F-Fluoromisonidazole (18F-FMISO) PET Imaging on Evaluation of Hypoxia Before Lu-177 PSMA Treatment for Prostate Cancer

It is aimed to evaluate hypoxia before Lu-177 PSMA treatment in prostate cancer and to show its effect on treatment success with 18F-FMISO PET imaging, which allows in-vivo evaluation and quantification of tumor hypoxia, which is known to be one of the factors affecting radiotherapy resistance.

68Ga-AAZTA-093 PET/CT: First-in-human Study in Patients With Prostate Cancer

68Ga-AAZTA-093 is a novel radiotracer targeting prostate-specific membrane antigen (PSMA). In this study, we observed the safety, biodistribution, radiation dosimetry and diagnostic value of 68Ga-AAZTA-093 PET/CT in patients with prostate cancer.

Head-to-head Comparison of [18F]F-PSMA-N5 With [68Ga]Ga-PSMA-11 PET/CT in PCa Diagnosis, Recurrence, and Metastasis

To prospectively evaluate the radiodrug biodistribution of a novel PET imaging agent \[18F\]F-PSMA-N5 in different organs of prostate cancer patients and its diagnostic efficacy in the diagnosis, recurrence and metastasis of prostate cancer, and to compare with \[68Ga\]Ga-PSMA-11.

Utilizing 68Ga-PSMA PET/MRI Imaging in Conjunction With mpMRI for Evaluating Prospective Prostate Cancer Risk

The goal of this observational study is to learn if Ga-68 PSMA PET/MRI can better diagnose prostate cancer than mpMRI in males between 40 to 85 years old who is naive to prostate biopsy and is suspicious for prostate cancer by elevated PSA or lower urinary tract symptoms. The main questions it aims to answer are: Does PSMA PET/MRI have better PPV and NPV than mpMRI to diagnose prostate cancer? Does lesion location concordance in PSMA PET and MRI effect diagnosis accuracy?

A Randomized Phase III Trial Evaluating the Efficacy and Safety of Standard of Care +/- 177Lu-PSMA617 in de Novo Metastatic Hormone-sensitive Prostate Cancer Patients Having a PSA≥0.2 ng/mL at 6-8 Months After Systemic Treatment Initiation

PEACE-6 Poor Responders is an international, multicenter, open-label, controlled, randomized, phase III trial to evaluate the efficacy and safety of 177Lu-PSMA-617 when administered on top of the ongoing standard systemic treatment compared to standard systemic treatment alone in patients with de novo metastatic hormone-sensitive prostate cancer (mHSPC) who do not present with a satisfactory response characterized by a serum prostatic specific antigen (PSA) level of ≥ 0.2 ng/mL at 6 to 8 months after systemic treatment initiation for mHSPC (i.e. poor responders) in the absence of evidence of cancer progression (including a rising PSA level).

Posluma (18F-rhPSMA) PET Guided Radiotherapy Planning in Prostate Cancer: a Prospective Study Evaluating POSLUMA PET Tumor Detection on Radiation Therapy Planning and on BGRT Planning on the RefleXion X1 System

This clinical trial evaluates [18F]-rh PSMA positron emission tomography (PET)-computed tomography (CT) imaging performance in patients with prostate cancer. PET is an established imaging technique that utilizes small amounts of radioactivity attached to very minimal amounts of tracer, in the case of this research, 18F-rhPSMA. Because some cancers take up [18F]-rhPSMA, cancer cells can be seen with PET. CT utilizes x-rays that traverse body from the outside. CT images provide an exact outline of organs and potential inflammatory tissue where it occurs in patient's body. Posluma (18F-rhPSMA) is an approved prostate-specific membrane antigen (PSMA) imaging agent for prostate cancer. The RefleXion Medical Radiotherapy System (RMRS) is designed to facilitate delivery of biology-guided radiotherapy (BgRT). The system uses PET emissions to guide radiotherapy delivery in real-time and has been studied for use with fludeoxyglucose (FDG) (which is an agent used in standard PET-CT scans that targets glucose). Information gathered from this study may help researchers to improve PET-CT imaging on the RefleXion system. This information will be used in the future to improve planning and delivery of radiation therapy that will target (in real time) the signal released from the [18F]-rhPSMA PET-CT tracer. Comparing the imaging from the standard of care [18F]-rh PSMA PET-CT with the imaging from RMRS may help improve the quality of the imaging captured on the RMRS for detection of imaging signals in patients with prostate cancer.

68Ga-AAZTA-NI-093 PET/CT: First-in-human Study in Patients With Prostate Cancer

68Ga-AAZTA-093 is a novel radiotracer incorporating a hypoxia sensitive nitroimidazole(NI)-moiety and a PSMA-targeting. In this study, we observed the safety, biodistribution, radiation dosimetry and diagnostic value of 68Ga-AAZTA-NI-093 PET/CT in patients with prostate cancer.

A Multicenter Study Evaluating the Diagnostic Value of 68Ga-MY6349 PET/CT for Prostate Cancer

The main objective of this research is to develop and evaluate new PET imaging agents with high sensitivity and specificity for prostate cancer and other aggressive tumors. Specifically, the research focuses on improving upon existing prostate cancer imaging methods, such as PSA tests and PSMA PET/CT, which have limitations in sensitivity, specificity, and the ability to provide comprehensive tumor information，and aims to create a novel PET probe targeting Trop2, an antigen highly expressed in multiple cancer types, to enable in vivo, whole-tumor assessment. This would support early diagnosis, more precise staging, and effective monitoring of cancer therapy.

Optimisation and Safety of an Innovative Nuclear Medicine Treatment: Clinical and Dosimetric Study of Patients Treated With 177Lu-PSMA-617 for Prostate Cancer.

Single-centre, retrospective and prospective observational study. This study aims to evaluate the dose delivered by radiation to the tumour and organs at risk, as a factor predicting response and the appearance of toxicities. Dosimetric calculations are made for each treatment using scintigraphic images acquired following injection of 177Lu-PSMA-617.

Usefulness of Tumor Heterogeneity Assessment in Patients With MCRPC Undergoing Radioligand Therapy With 177LU-PSMA-617 Using Serial 18F-DCFPYL, 18F-FDG and 18F-Fluciclovine PET/CT Predicting Clinical Outcome

The imaging analysis will consist in obtaining quantitative measurements of lesion uptake on the pre- and post-LuPSMA RLT (lesion and whole-body SUVmax, SUVmean and tumor volume) at each time point on all PET/CT scans. PET metrics at the lesion- and whole-body level will be compared among different PET radiopharmaceuticals at the same time point, and changes over time will be assessed.

A Phase III, Prospective, Open-Label, Single-Arm, Multi-center Clinical Study to Assess the Diagnostic Performance and Safety of 18F-Florastamin PET/CT Imaging in Patients With Suspected Recurrence of Prostate Cancer

In this study, 18F-Florastamin PET/CT will be performed in patients with suspected recurrence of prostate cancer, to assess the diagnostic performance and safety of 18F-Florastamin PET/CT imaging.

Head-to-head Comparison of [18F]AlF-PSMA-N5 With [18F]F-DCFPyL PET/CT in Prostate Cancer Diagnosis, Recurrence, and Metastasis: a Prospective Study

To prospectively evaluate the radiodrug biodistribution of a novel PET imaging agent [18F]AlF-PSMA-N5 in different organs of prostate cancer patients and its diagnostic efficacy in the diagnosis, recurrence and metastasis of prostate cancer, and to compare with [18F]F-DCFPyL.

Phase II Study of Neoadjuvant Lu-177-PSMA-617 in Patients With High Risk Localized Prostate Cancer Undergoing Radical Prostatectomy

Male adults with a confirmed diagnosis of prostate adenocarcinoma who meet criteria for localized high risk prostate cancer according to the NCCN guidelines and who are eligible for prostatectomy will be invited to participate. Criteria for high-risk prostate cancer include patients with preoperative prostate biopsy score of Gleason 8 (GS8) (Grade group 4 [GG4]) or higher. Patients also need to have a positive PSMA scan on 68-Ga-PSMA-11 PET/CT scan.

The Clinical Impact and Prognostic Value of [18F] PSMA-1007 Imaging for Primary Staging of Prostate Cancer: Real-world Evidence from a Monocentric, Prospective Observational Study

The investigators now intend to prospectively generate evidence-based data in everyday clinical practice with this so-called Real-World-Evidence (RWE) study. The planned study will enable us to analyze the diagnostic accuracy of Radelumin® in more detail under everyday conditions, whereby dedicated examinations of certain subgroups and the prospective generation of a complete, high-quality database for the future use of artificial intelligence (AI) will be made possible.

Prospective Evaluation of Imaging Response Biomarkers During [177Lu]Lu-PSMA in Metastatic Castration-resistant Prostate Cancer

Given that data regarding SPECT/CT-based treatment response monitoring during PSMA theranostics are limited, this study aims to prospectively investigate the role of LuPSMA-SPECT/CT imaging for response evaluation during treatment with [177Lu]Lu-PSMA in mCRPC patients.

A Phase I Study to Evaluate the Safety and Dosimetry of 68Ga-OncoACP3 in Patients with Prostate Cancer

The aim of this study is to assess the safety and dosimetry of [68Ga]Ga-OncoACP3 in patients with prostate cancer.

A Phase I, First-in-human, Dose Escalation Study Of [225Ac]-AZD2284 in Patients With Metastatic Castration-Resistant Prostate Cancer

The main purpose of the study is to assess the safety and tolerability of AZD2284, AZD2287, and AZD2275.

Comparative Performance of 64Copper [64Cu]-SAR-bis-PSMA vs 68Ga PSMA-11 PET CT for the Detection of Prostate Cancer Recurrence in the Setting of Biochemical Failure Following Radical Prostatectomy

The goal of this clinical trial is to compare 64Cu-SAR-bisPSMA PET/CT and 68Ga PSMA-11 PET/CT in men with biochemical failure following radical prostatectomy. The main questions it aims to answer are: Is there a difference in the number of lesions of prostate cancer recurrence detected between the 64Cu-SAR-bisPSMA PET/CT and 68Ga PSMA-11 PET/CT scans. What is the diagnostic accuracy of 64Cu-SAR-bisPSMA PET/CT compared to 68Ga PSMA-11 PET/CT using a standard of care comparator. Evaluate the magnitude of clinical management change when using 64Cu-SAR-bisPSMA additional to standard of care imaging (68Ga PSMA-11).

Imaging of Solid Tumors Using 18F-TRX

This phase I trial tests the safety and effectiveness of 18F-TRX in detecting tumors (cancer) patients with solid tumors. 18F-TRX is an imaging tracer that is used to visualize tumors using a PET scan. It specifically targets and detects labile (unstable) iron levels within tissues, including tumors. Diagnostic procedures, such as 18F-TRX PET/CT or PET/MRI, may help detect tumors in patients with solid tumors

PROstate-specific Membrane Antigen DosImetry- Guided endoradiotherapY: A Randomized- Controlled, Single-blind, Pilot Study of Personalized vs. Fixed-activity 177Lu-PSMA-617 Radiopharmaceutical Therapy (PRODIGY-2)

Researchers will compare participants receiving a personalized regime to participants receiving the standard fixed-activity regime of 177Lu-PSMA-617 to see if the activity can be safely increased through personalization based on renal dosimetry (i.e. the measure of how much radiation is actually delivered to the kidney).

177Lu-PSMA-617 (Pluvicto) for the Treatment of Patients With Progressive PSMA-Positive Metastatic Castration-Resistant Prostate Cancer (mCRPC) and Super Scan Bone Scan

The purpose of this study is to evaluate the safety and tolerability of Lutetium-177-PSMA-617 (PLUVICTO) in patients with metastatic castration-resistant prostate cancer (mCRPC) and extensive bone metastases, which appear as a "super scan" pattern on a bone scan.

Utility of 18F-rhPSMA-7.3 in the Diagnosis of Prostate Cancer After Focal Gland Treatment

To evaluate the effectiveness of a PSMA-PET scan in identifying recurrent prostate cancer after focal therapy

177Lu-PSMA-617 in Metastatic Castration Resistant Prostate Cancer (mCRPC) With Bone Marrow Involvement and Cytopenia

To control mCRPC that has spread to the bone marrow. The safety and effects of this treatment will also be studied.

Research on the Application of 68Ga-PSMA-CYC PET Imaging in the Diagnosis, Staging, and Restaging of Prostate Cancer

68Ga-PSMA-CYC is a novel radiotracer targeting PSMA. In this study, we investigated the safety, biodistribution, radiation dosimetry of 68Ga-PSMA-CYC PET/CT in patients with prostate cancer, and performed a head-to-head comparison with 68Ga-PSMA-617 and 68Ga-PSMA-11 to evaluate its diagnostic performance.

A Phase I Study to Assess the Safety, Tolerability, Radiation Dosimetry and Efficacy of [177Lu] Lu-PSMA-XT in Patients With Metastatic Prostate Cancer

This was a multicenter, open-label, phase I study to evaluate the safety, tolerability, radiation dosimetry and efficacy of [177Lu] Lu-PSMA-XT injection in patients with metastatic prostate cancer .

SPECT/CT Imaging for Dosimetry in 177Lu-PSMA-617 (Pluvicto) Therapy

This study is being performed to establish the association between absorbed dose to tumor and response and absorbed dose to normal organs and toxicity following Lu177-PSMA radioligand therapy

68Ga-P16-093 PET Imaging in the Diagnostic Study of Newly Diagnosed, Untreated Prostate Cancer, With a Head-to-head Comparison to mpMRI

68Ga-P16-093 is a novel radiotracer targeting PSMA. In this study, we investigated the diagnostic efficacy of 68Ga-P16-093 PET imaging (PET/CT or PET/MRI) in patients with newly diagnosed, treatment-naive prostate cancer, and performed a head-to-head comparison with multi-parameter magnetic resonance imaging (mpMRI).

68Ga-PSMA-11 PET Imaging in the Diagnostic Study of Newly Diagnosed, Untreated Prostate Cancer, With a Head-to-head Comparison to mpMRI

68Ga-PSMA-11 is a widely used radiotracer targeting PSMA. In this study, we investigated the diagnostic efficacy of 68Ga-PSMA-11 PET imaging (PET/CT or PET/MRI) in patients with newly diagnosed, treatment-naive prostate cancer, and performed a head-to-head comparison with multi-parameter magnetic resonance imaging (mpMRI).

PET Targeting Acid Phosphatase 3 (ACP3) in Prostate Cancer and Compared With 68Ga-PSMA

The objective of the study is to construct a noninvasive approach 68Ga-XACP3 PET/CT to detect tumor lesions in patients with prostate cancer and to compare with 68Ga-PSMA PET/CT.

Subjects will be treated in cohorts at three sequential target absorbed radiation dose levels, where the dose level for the next cohort will be determined by a prespecified decision tree for escalation/de-escalation, according to the accelerated Time-to-Event Bayesian Optimal Interval Design (TITE-BOIN) approach.

The VOYAGER Study is an interventional, non-randomized, single-arm, dose escalation trial with the goal of determining the safety of TheraSphere PCa device in patients with clinically localized prostate cancer across US-based centers.

Fluorine-18 - 2-(3-(1-carboxy-5-[(6-[18F]Fluoro-pyridine-3-carbonyl)-Amino]-Pentyl)-Ureido)-Pentanedioic Acid (18F-DCFPyL) Positron Emission Tomography / Computed Tomography (PET/CT) for Assessment of Recurrent Prostate Cancer

Prostate cancer (PC) is the third most common cause of cancer death in men. Most patients with localized PC will be cured with surgery or radiation therapy, but up to 35% of patients will have their PC return. Whether it has returned locally or distantly determines which type of treatment they will receive. Current conventional imaging modalities have limitations particularly at low prostate-specific antigen (PSA) levels. This study proposes to use Fluorine-18-2-(3-(1-carboxy-5-[(6-[18F]fluoro-pyridine-3-carbonyl)-amino]-pentyl)-ureido)-pentanedioic acid (18F-DCFPyL) Positron Emission Tomography / Computer Tomography (PET/CT) scans which targets prostate-specific membrane antigens (PSMA) to detect where in the body the PC has recurred.

PSMA-based 18F-DCFPyL PET/CT and PET/MRI Pilot Studies in Prostate Cancer

The overall goal of this research is to validate and develop a non-invasive imaging biomarker of prostate cancer detection, progression, and recurrence. Development of such a biomarker may be useful to differentiate indolent from aggressive prostate cancer phenotypes allowing for selection of an appropriate risk adaptive therapy.

A Phase 1/2 Study of Combination Olaparib and Radium-223 in Men With Metastatic Castration-Resistant Prostate Cancer With Bone Metastases (COMRADE)

This phase I/II trial studies the best dose and side effects of olaparib and how well it works with radium Ra 223 dichloride in treating patients with castration-resistant prostate cancer that has spread to the bone and other places in the body (metastatic). PARPs are proteins that help repair DNA mutations. PARP inhibitors, such as olaparib, can keep PARP from working, so tumor cells can't repair themselves, and they may stop growing. Radioactive drugs, such as radium Ra 223 dichloride, may carry radiation directly to tumor cells and not harm normal cells. Giving olaparib and radium Ra 223 dichloride may help treat patients with castration-resistant prostate cancer.

A Phase 2 Trial of Radium Ra 223 Dichloride in Combination With Androgen Deprivation Therapy and Stereotactic Body Radiation Therapy for Patients With Oligometastatic Castration Sensitive Prostate Cancer

This phase 2 trial studies radium Ra 223 dichloride, hormone therapy and stereotactic body radiation in treating patients with prostate cancer that has spread to other places in the body. Radium Ra 223 dichloride contains a radioactive substance that collects in the bone and gives off radiation that may kill cancer cells. Hormone therapy using leuprolide acetate or goserelin acetate may fight prostate cancer by lowering the amount of testosterone the body makes. Stereotactic body radiation therapy is a specialized radiation therapy that sends x-rays directly to the tumor using smaller doses over several days and may cause less damage to normal tissue. Giving radium Ra 223 dichloride, hormone therapy and stereotactic body radiation may work better at treating prostate cancer.

Radium-223 Combined With Dexamethasone as First-line Therapy in Patients With Metastatic Castrate Resistant Prostate Cancer

The purpose of this study is to determine whether an oral drug called dexamethasone (a corticosteroid) given together with radium-223 may control PSA levels and reduce side effects during radium-223 treatment. Corticosteroids are anti-inflammatory medicines prescribed for a broad range of conditions and are widely used in conjunction with chemotherapy treatments for cancer. Prior research studies have shown that dexamethasone reduces PSA levels by lowering the production of androgens (i.e. male hormones) and improves overall tolerance for cancer-fighting drugs and therapies. Up to 24 men being treated with radium-223 at University Health Network will be enrolled into this study. If the study is positive, it might offer an improved quality of life and extended survival.

Multi-cohort Investigational Study to Evaluate the Impact of Pelvic Mp-3TMRI and Whole-body 68Ga-PSMA PET/CT for Diagnosis of Clinically-significant Prostate Cancer and Pre-surgical Staging.

BIOPSTAGE is a prospective, non-randomized, diagnostic, multi-cohort investigational study to evaluate the impact of pelvic Multi-parametric 3-Tesla magnetic resonance imaging (mp-3TMRI) and whole-body 68Ga-PSMA PET/CT for diagnosis of clinically-significant prostate cancer and pre-surgical staging.

Exploratory, Single-institution Study, Comparing 68Ga-RM2 PET/CT Versus 68Ga-PSMA-617 PET/CT in Patients Diagnosed With Intermediate Risk Prostate Cancer Candidates for Radical Prostatectomy

Patients with primary intermediate risk prostate cancer for whom radical prostatectomy is indicated, will be invited to participate to the present study. Positron Emission Tomography coupled with scanner (PET-CT) using a radiotracer : 68Ga-RM2 and Positron Emission Tomography coupled with scanner (PET-CT) using another radiotracer : 68Ga-PSMA-617, will be scheduled.

A Phase I Trial of Fractionated Docetaxel and Radium 223 in Metastatic Castration-Resistant Prostate Cancer (CRPC)

The objective of this study is to determine the maximum safe dose of Ra-223 in combination with fractionated (split doses) docetaxel when given to subjects and to determine the best administering dose. The study will look at side effects that may happen while taking the combination treatment. A total of approximately 18 subjects will take part in the dose escalation part of the study and an additional 25 subjects will participate in the expansion cohort. This study will be conducted across four centers in the United States.

177Lu-PSMA-617 Therapy and Olaparib in Patients With Metastatic Castration Resistant Prostate Cancer

This phase 1 dose-escalation and dose-expansion study is designed to evaluate the safety and tolerability of olaparib in combination with 177Lutetium-Prostate Specific Membrane Antigen (177 Lu-PSMA) in patients with metastatic castration resistant prostate cancer (mCRPC).

Feasibility Study on the Use of PET-MRI / 68Ga-PSMA Imaging for HIFU-focal Treatment in the Event of Recurrent Prostate Cancer After Radiotherapy - PSMA Study

A significant proportion of patients with localized prostate cancer, and treated for curative intent by radiotherapy, have a local recurrence. Among these patients with local recurrence, few receive curative remedial treatment but most of them are treated with palliative hormonal therapy without any chance of long-term recovery.

Phase II Clinical and Translational Study of Neoadjuvant Pembrolizumab Before Radical Prostatectomy in Non-metastatic Gleason ≥8 Prostate Cancer Patients Positive by 18FDG-PET Scanning ( PICT-01)

This is a Phase II, single-arm and open-label trial of pembrolizumab (MK-3475) in localized prostate cancer patients with newly diagnosed non-metastatic prostate cancer (Gleason grade ≥8 on biopsy) with positive tumor by FDG-PET (SUV max >4) who chose to undergo radical prostatectomy and lymph node dissection as primary treatment. The trial will meet its endpoint if a reduction in cancer extent, proliferative index and increased apoptosis, as well as an induction of favorable immune cell infiltration and immune checkpoint expression profiles are observed after treatment compare to baseline.

Prostate-Specific Membrane Antigen (PSMA) PET Scans in People with Prostate Cancer

The purpose of this study is to determine if Prostate-Specific Membrane Antigen (PSMA) positron emission tomography (PET) scans used in this study accurate and better at imaging participants' prostate cancer than the usual methods.

Multi-modality Prostate Cancer Image Guided Interventions - 5

The study is a non-randomized, prospective trial of men scheduled for radical prostatectomy for treatment of prostate cancer as standard of care and will undergo a series of pre-operative multi-modality imaging studies. Pre-operative imaging will be correlated with actual pathology results and statistical modeling performed to determine the most informative imaging biomarkers in predicting cancer location and aggressiveness (Gleason Score).

This is an open label, prospective, trial that begins with a phase Ib safety run-in followed by a phase II expansion cohort.

Phase IB Study of Nivolumab in Combination With Radium-223 in Men With Metastatic Castration Resistant Prostate Cancer. This is an open label, prospective, trial that begins with a phase Ib safety run-in followed by a phase II expansion cohort.

LCCC 1917: Dose Escalation of Low and Intermediate Risk Localized Prostate Cancer Using 68Ga-HBED-CC PSMA-PET/MRI and Stereotactic Body Radiotherapy

The goal of this study is to determine the safety of using PSMA-PET/mpMRI to define radiotherapy targets, while meeting all current planning criteria. This study also intends to determine the feasibility of performing stereotactic body radiation therapy with simultaneous integrated boost on the dominant intra-prostatic lesions while meeting all current planning criteria.

Lutetium-177-PSMA-617 Radioligand Therapy in Oligo-metastatic Hormone Sensitive Prostate Cancer.

Radioligand therapy (RLT) using Lutetium-177 labelled PSMA is a promising new therapeutic approach to treat metastatic prostate cancer. This tumor-specific treatment is directed against prostate-specific membrane antigen (PSMA), which is overexpressed in prostate cancer cells. In the last few years, several lutetium-177 (177Lu, β emitter) labeled PSMA ligands have been developed and are currently applied to treat metastatic castrate resistant prostate cancer patients. To date, there are no prospective randomized studies published using this treatment in the hormone sensitive setting or in oligometastatic prostate cancer. Therefore, this study we will evaluate the effect of 177Lu-PSMA in patients with hormone sensitive oligo-metastatic prostate cancer.

High Resolution, 18F-PSMA PET-MRI Before Prostate Cancer HIFU or Radical Prostatectomy

Brief Summary: This prospective trial aims to determine if enhanced prostate imaging using two novel imaging technologies (high resolution DWI and 18F-PSMA PET-MRI) will detect prostate cancers not seen on standard multiparametric prostate MRI in patients considered candidates for focal HIFU.

The Role of 68Gallium PSMA-11 in Biochemical Recurrence in Prostate Cancer and in Known Metastatic Prostate Cancer and in the Evaluation of Treatment Response After Salvage Therapy

The goal of this research is to examine the ability of Gallium-68 (68Ga) Prostate-Specific Membrane Antigen-11 (PSMA-11) positron emission tomography/computed tomography (PET/CT) to detect sites of recurrent prostate cancer in patients with biochemical recurrence previously treated with radical prostatectomy (RP) or external beam radiation (EBRT) and to assess treatment response to subsequent salvage therapy.

68Ga-PSMA-11 Positron Emission Tomography / Computed Tomography (PET/CT) for Assessment of High Risk or Recurrent Prostate Cancer

Prostate cancer is the third most common cause of cancer death in men. Most patients with localized prostate cancer will be cured with surgery or radiation therapy, but up to 35% of patients will have their prostate cancer return. Whether it has returned locally or distantly determines which type of treatment they will receive. Current conventional imaging modalities have limitations particularly at low prostate specific antigen levels. This study proposes to use Gallium-68-PSMA-11 (68Ga-PSMA-11) Positron Emission Tomography / Computer Tomography (PET/CT) scans which targets prostate-specific membrane antigens (PSMA) to detect where in the body the prostate cancer has recurred.

Phase I/II Dose-escalation Study of Fractionated and Multiple Dose 225Ac-J591 for Progressive Metastatic Castration Resistant Prostate Cancer

The purpose of the initial (phase I) portion of this study is to find a dose level and administration schedule of the study drug, 225Ac-J591 that can be given without severe side effects.

PSMA Specific [68Ga]-P137 Peptide Probe for PET Imaging in Prostate Cancer

To study the radioactive uptake of [68Ga]P137 in the lesion sites of PCa patients and evaluate the ability of [68Ga]P137 to detect PSMA overexpression in PCa patients (especially those with recurrent or advanced PCa).

Pilot Study of PSMA-TRT Re-treatment Utilizing 225Ac-J591

The purpose of this study is to find out if re-treatment with 225Ac-J591 can be given without severe side effects.

Detection and Monitoring of Metastasis by 18F-DCFPyL PET/CT in Subjects Starting Enzalutamide for Untreated Castration Resistant Prostate Cancer and Negative Conventional Imaging

This study aimed to evaluate the diagnostic performance of 18F-DCFPyL (PyL) PET/CT in subjects presenting not previously treated for castration resistant prostate cancer and showing negative or equivocal findings per institutional standard of care conventional imaging

A Randomized Phase II Study of 177 LuPSMA-617 vs Docetaxel in Patients With Metastatic Castration-Resistant Prostate Cancer and PSMA-Positive Disease

177Lu PSMA 617 is a new type of therapy which is designed to deliver high doses of radiation directly to prostate cancer sites in the body. The purpose of this study is to find out whether 177Lu PSMA 617can slow the growth of prostate cancer compared to standard chemotherapy treatment

[Al18F]PSMA137 PET/CT Imaging for PSMA-Positive Cancer Patients

To investigate the radioactive uptake of [Al 18 F]PSMA137 in PCa patients, and evaluate the ability of [Al 18 F]PSMA137 to detect PSMA overexpression in PCa patients (especially those with recurrent or advanced PCa).To provide an approach for screening patients high expression of PSMA, efficacy monitoring, drug resistance and early warning of recurrence and metastasis to achieve the individualized antitumor treatment of targeted drugs.

A Prospective Pilot Study Investigating rhPSMA 7.3 PET/MRI in Detecting Recurrent Disease and Aid in Radiotherapy Planning in Patients With Biochemically Recurrent Prostate Cancer

prostate-specific antigen (PSA) following prostate surgery (biochemically recurrent). An increase in PSA levels alone does not tell the doctor where the cancer may be or how much cancer there may be. Imaging tests, like a bone scan, MRI, and/or computed tomography, are often performed to help the doctor learn where or how much cancer there is, and how best to treat the cancer. rhPSMA-7.3 is a radioactive tracer agent that when used with PET/MRI imaging may help diagnose and look for the spread of prostate cancer. Prostate-specific membrane antigen (PSMA) is a protein that is expressed in prostate cancer and this agent targets the PSMA molecule. Giving rh PSMA 7.3 during PET/MRI may help doctors better find where the cancer may be spreading and how much of it there is. The results of this trial may also guide in radiotherapy planning.

Head-to-head Comparison of 68Ga-PSMA-11 and 18F-PSMA-1007 for the Detection of Recurrent Prostate Cancer in PSMA-ligand PET/CT

The aim of this study is to provide robust data on the head-to-head comparison of the two ligands of the prostate specific membrane antigen (PSMA) available in Switzerland for positron emission tomography (PET)-imaging, i.e. 68Ga-PSMA-11 und 18F-PSMA-1007.

PRISMA-PET - Primary Staging of Prostate Cancer: A Randomized Controlled Trial Comparing 18F-PSMA-1007 PET/CT to Conventional Imaging

In a prospective multicenter study, the investigators plan to include 448 patients and randomize 1:1 to either traditional imaging or PSMA-PET/CT. The investigators aim to analyze whether PSMA-PET/CT increases progression-free survival and quality of life. Further, the investigators aim to validate the accuracy of primary staging with PSMA-PET/CT compared with conventional imaging.

SAXON-PC: A Phase II Randomized Trial of Stereotactic Body Radiation Therapy (SBRT) And Radium (Ra-223) Dichloride for Oligorecurrent, Non-castrate Resistant Prostate Cancer

Participants will either receive treatment with standard SBRT and the study drug Radium (Ra-223) dichloride, or standard SBRT alone.

Comparison of Robotic-arm Assisted 68 Ga PSMA PET/CT Guided Prostate Biopsy Versus MR Directed TRUS Guided (Cognitive Fusion) Prostate Biopsy: A Pilot Study to Assess Diagnostic Performance and Patient Safety

he present study aimed to compare the diagnostic accuracy, radiation exposure, complication rates between 68Ga-PSMA PET/CT guided robotic arm assisted prostate biopsy and MRI directed TRUS guided prostate biopsy.

Phase II Study of Radionuclide 177Lu-PSMA Therapy Versus 177Lu-PSMA in Combination With Ipilimumab and Nivolumab for Men With MetastaticCastration Resistant Prostate Cancer (mCRPC)

This phase II study will investigate the activity and safety of radionuclide 177Lu-PSMA therapy versus 177Lu-PSMA in combination with Ipilimumab and Nivolumab in patients with metastatic castrate resistant prostate cancer (mCRPC).

Retrospective Analysis of 68Ga-PSMA-PET in Patients With Prostate Cancer: Experience From Brazil (LACOG pPR015)

Gallium-68-prostate-specific membrane antigen (68Ga-PSMA) positron emission tomography (PET) has been increasingly used in the management of PCa in Brazil. Thus, the detection of metastatic lesions is improved over traditional methods e.g. MRI and the diagnosis of mCSPC patients has been proportionally increasing. Due to a lack of guidelines and clinical trials including 68Ga-PSMA-PET imaging, the management of these patients is extrapolated from data based on conventional imaging. Treatment decision and duration of treatment for mCSPC patients based on 68Ga-PSMA-PET imaging is currently unknown. 68Ga-PSMA-PET allows a diagnosis of a different set of low volume oligo-metastatic prostate cancer patients. Based on that, a new gap has been built up, since there are no standards of how those patients are managed and how they respond to conventional therapies, to metastasis direct therapy or even if they could be spared of any treatment, reducing costs and toxicities. This patient population has not been included in clinical trials and its critical to generate information on the diagnosis, treatment and outcome of these patients in clinical practice.

Cabazitaxel in Combination With 177Lu-PSMA-617 in Metastatic Castration-resistant Prostate Cancer

This clinical trial will evaluate the safety of Cabazitaxel in combination with 177Lu-PSMA-617 in metastatic castration-resistant prostate cancer.

Combination of Radium-223 and Lutetium-177 PSMA-I&T in Men With Metastatic Castration-Resistant Prostate Cancer

This clinical trial will evaluate the safety of Radium-223 in combination with 177Lu-PSMA-I&T in metastatic castration-resistant prostate cancer: Phase I/II study

A Phase 1/2 Clinical Trial to Evaluate the Safety, Tolerability, Dosimetry, and Anti-tumor Activity of Ga-68-NGUL / Lu-177-DGUL in Patients With Metastatic Castration-resistant Prostate Cancer (mCRPC) Refractory to Standard Therapy

This clinical trial is an open-label, single-arm, single-center, escalation (Phase 1 Part B only), rater-blind (Phase 2 only), phase 1/2 trial to evaluate the diagnostic validity/safety of Ga-68-NGUL and efficacy/safety of Lu-177-DGUL on the anti-tumor activity that aims to simultaneously evaluate diagnostic and therapeutic validity.

Phase 2 Study of Repeat-dose [177Lu]Ludotadipep Treatment for Metastatic Castration-resistant Prostate Cancer

100 mCi of [177Lu]Ludotadipep, the dose determined in the phase 1 clinical trial (FC705-1), was administered repeatedly up to 6 times at intervals of 8 weeks (±2 weeks) to patients with metastatic castration resistant prostate cancer (mCRPC) in order to assess the safety and efficacy.

Optimizing Timing of rhPSMA-7.3 (18F) for Assessing Site(s) of Recurrent Disease Following Radical Prostatectomy

All men following Radical Prostatectomy (RP) at NYU Langone Health undergo routine prostate specific antigen (PSA) testing in order to identify disease recurrence. By consensus, a BCR following RP occurs once the PSA > 0.2 ng/ml/ Biochemical recurrence often develops years prior to clinical evidence of disease recurrence. Early identification of the site(s) of disease recurrence enables early salvage intervention. Men will be eligible for the study at the point in time their post-prostatectomy PSA level first becomes >0.2 ng/ml. Only those patients with rhPSMA-7.3 (18F) identifiable disease (local, nodal or systemic) will be offered salvage intervention per standard of care. All patients with a negative initial rhPSMA-7.3 (18F) scan will undergo a second scan when the PSA is > 0,5 ng/ml or one year after the initial PET study. The salvage interventions will be at the discretion of the investigator. The study will compare the diagnostic yield of the first and second rhPSMA-7.3 (18F) studies.

A Phase II Study of Fluorine-18 (18F)-Labeled PSMA-1007 in Patients With Known or Suspected Metastatic Prostatic Carcinoma

A [18]F-PSMA-1007 PET/CT or PET/MRI scan are nuclear medicine tests used to create pictures of the whole body that may show where cells that express Prostate-Specific Membrane Antigen (PSMA) are found. PSMA is a transmembrane protein that is overexpressed in the majority of prostate cancers. PSMA imaging utilizes this overexpression, by binding on the transmembrane receptor and internalization in the cancer cells. The internalized isotope can then be imaged with the use of a PET/CT or PET/MRI scanner and show where cancer cells may be present in the body. This imaging modality has been shown to be superior to conventional imaging, such as bone scan and CT, in the detection of prostate cancer tumors.

Prospective Study Evaluating the Role of Axumin® (Fluciclovine or 18F-FACBC) PET in Patients With Biochemical Recurrence of Prostate Cancer and a Negative PSMA PET

The purpose of this prospective cohort study is to investigate the role of Fluciclovine Positron Emission Tomography (PET) in patients with biochemical recurrence of prostate cancer (BCR) and a negative Prostate Specific Membrane Antigen (PSMA) PET, specifically, whether Fluciclovine PET can help detect local recurrence and whether the results of Fluciclovine PET can change management.

Strategy to Reduce Bladder Activity With RhPSMA 7.3: Comparison of 18F-RhPSMA 7.3 PET/CT With and Without Furosemide in Biochemical Recurrence of Prostate Cancer

This phase II trial evaluates Fluorine-18 radiohybrid prostate-specific membrane antigen (18F- rhPSMA)-7.3 positron emission tomography (PET)/computed tomography (CT) scans with and without furosemide for the reduction of bladder activity in patients with prostate cancer that has come back (recurrent) based on elevated levels of prostate-specific antigen (PSA) in the blood (biochemical) after prostate surgery (prostatectomy). Furosemide is a diuretic substance that increases the urine flow into the bladder, thereby decreasing the level of radioactivity within the bladder, which may help to see any abnormal areas that could be masked by the radioactivity within the bladder. PET is an established imaging technique that utilizes small amounts of radioactivity attached to very minimal amounts of tracer, in the case of this research, rhPSMA ligand. CT utilizes x-rays that traverse body from the outside. CT images provide an exact outline of organs and potential inflammatory tissue where it occurs in patient's body. Adding furosemide to 18F-rhPSMA 7.3 PET/CT scans may help to better detect and treat patients with biochemically recurrent prostate cancer.

A Multi-center, Open-label, Single Arm Phase III Clinical Trial for the Diagnostic Efficacy Assessment and Safety Evaluation by [18F]Florastamin PET/CT Imaging Examination in Patients With Suspected Recurrent or Metastatic Prostate Cancer

This is a multi-center, open-label, single arm Phase III clinical trial for the diagnostic efficacy assessment and safety evaluation by [18F]Florastamin PET/CT imaging examination to determine the presence of recurrent or metastatic prostate cancer in patients whose recurrent or metastatic lesions have been confirmed through the conventional imaging.

SPECT Imaging of Gastrin Releasing Peptide Receptors Using Labeled Technetium-99m DB8 ([99mTc]Tc- DB8) in Prostate Cancer and Breast Cancer Patients

The study should evaluate the biological distribution of 99mTc-DB8 in patients with prostate cancer and breast cancer. The primary objective are: To assess the distribution of [99mTc]Tc- DB8 in normal tissues and tumors at different time intervals. To evaluate dosimetry of [99mTc]Tc- DB8. To study the safety and tolerability of the drug [99mTc]Tc- DB8 after a single injection in a diagnostic dosage. The secondary objective are: 1. To compare the obtained [99mTc]Tc- DB8 SPECT imaging results with the data of CT and/or MRI and/or ultrasound examination and immunohistochemical (IHC) studies in prostate cancer and breast cancer patients.

Application Value of Biopsy Free Technique for Prostate Specific Antigen Grey Area Prostate Cancer Based on 18F-Prostate Specific Membrane Antigen-1007 Positron Emission Tomography/Computerized Tomography

The goal of this observational study is to establish an evaluation system for accurate identification of prostate cancer and prostatic hyperplasia in patients in the PSA gray zone. The main questions it aims to answer are: proportion of men who could have avoided biopsy with positive PSMA-PET and no clinically significant cancer detected on biopsy; develop a nomogram of biomarkers (PSA) + imaging (PSMA) to predict the likelihood of clinically significant prostate cancer in men pre-biopsy. Participants will: 1. undergo PSMA PET/CT and multiparameter MRI; 2. undergo biopsy; and 3. undergo radical prostatectomy for biopsy-proven clinically significant prostate cancer. Researchers will compare the PSMA PET/CT-based features between prostate cancer and benign prostatic hyperplasia to see if there are differences in semiquantitative parameters.

An Open-Label, Non-Randomized, Single-Center, Investigator-Initiated Trial to Determine the Safety, Dosimetry, and Preliminary Effectiveness of 177Lu-Dansyl-PSMA in Patients With Metastatic Castration-Resistant Prostate Cancer

Ten to 20% of patients with prostate cancer (PC) experience progression in their disease, even after undergoing pharmaceutical or surgical castration, leading to metastatic CRPC (mCRPC). Prostate-specific membrane antigen (PSMA) is a membrane-bound glycoprotein mostly specific to the prostate. While PSMA is expressed at low levels in normal prostate, this expression increased by 100-1000-fold in PC, which makes it a favorable target for therapy. This study was designed to evaluate the safety, tolerability, and maximum tolerated dose of a long-lasting radiolabeled ligand 177Lu-Dansyl-PSMA in mCRPC patients.

A Phase 1/2 Study to Evaluate the Safety, Pharmacokinetics, Radiation Dosimetry and Efficacy of 177Lu-NYM032 Injection in Patients With PSMA-Positive Metastatic Castration-Resistant Prostate Cancer

177Lu-NYM032 injection is a radioligand therapeutic agent that targets prostate specific membrane antigen (PSMA)-expressing prostate tumors. NYM032 is a small molecular with strong affinity for PSMA.

Pharmacokinetics, Biodistribution, Radiation Dose and Safety Study of a Single Dose of Gallium [68Ga]-NYM032 Injection Prepared by Kit for the Preparation of the 68Ga-NYM032 Injection in Patients With Prostate Cancer

68Ga-NYM032 is a PSMA-targeting small-molecular radiotracer for PET/CT imaging of prostate cancer, which is needed for clinical trial to be conducted

Clinical Evaluation of Lutetium-177 Labeled BQ7876 for Targeting of Prostate-Specific Membrane Antigen

The study should evaluate the biological distribution of [177Lu]Lu-BQ7876 in patients with prostate cancer. The objective are: To evaluate the content of [177Lu]Lu-BQ7876 in the blood of patients with prostate cancer at different time points after a single intravenous administration. To assess the distribution of [177Lu]Lu-BQ7876 in normal tissues and tumors at different time points. To evaluate dosimetry of [177Lu]Lu-BQ7876. To study the safety and tolerability of the drug [177Lu]Lu-BQ7876 after a single injection.

Quantification With Lutetium-177 on Cadmium-Zinc-Telluride Camera 3D

The main of this study is to demonstrate the feasibility of carrying out quantitative acquisitions regardless of the energy peak considered (113 keV (kiloelectronVolts) or 208 keV or a combination of the 2 energy peaks). A study on phantom will optimise the reconstruction parameters. These parameters will then be applied to a population of patients who have already benefited from a recording on a 3D CZT camera (retrospective data).

Characterizing the Theranostic Potential of DLL3-targeting Agents in High-grade Neuroendocrine Carcinomas of the Lung and Prostate

The purpose of this study is to find out whether 177Lu-DTPA-SC16.56 is a safe treatment for people with small-cell lung cancer or neuroendocrine prostate cancer

Comparison of 177Lu-PSMA-617 and 225Ac-PSMA-617 in a Prostatectomy Model (LUTACT Trial)

There is evidence that Actinium-225 Prostate-Specific Membrane Antigen (225Ac-PSMA) has a potentially higher level of efficacy than 177 Lutetium Prostate-Specific Membrane Antigen (177Lu-PSMA) as a radioligand therapy. This single center, pilot study will compare differences in the mechanisms of actinium-225 and lutetium-177 radioligand therapies (RLT) in participants with high or very high risk localized or locoregional prostate cancer planning on undergoing a prostatectomy.

A Phase 1b Study of 177Lu-PSMA-617 Combined With Liver Directed Therapy in Metastatic Castration Resistant Prostate Cancer

This is an open label, single arm, phase 1b study to determine the safety of combining sequential Prostate-Specific Membrane Antigen (PSMA)-targeted 177Lu-PSMA-617 radionuclide therapy with liver-directed therapy in metastatic castrate-resistant prostate cancer (mCRPC) patients with liver metastases amenable to liver-directed therapy who have progressed on at least one prior androgen pathway inhibitor.

Radioligand Efficacy Comparison by Initial PSA-Response Outcome in Metastatic CRPC With Lutetium 177Lu PSMA RLT (RECIPROCAL)

This randomized phase III trial examines whether lengthening the dosage interval in an adaptive manner for the prostate cancer drug lutetium 177 Lu PSMA RLT improves quality of life without decreasing lifespan when compared to the standard way this medication is given.

Low-Count Quantitative SPECT for Men Treated With Radium-223

(SPECT) imaging offers a mechanism to quantify uptake; however, αRPT administered activities are significantly lower than those used with diagnostic procedures, which presents a challenge for quantitation with conventional methods. Preliminary research shows that low-count quantitative SPECT (LC-QSPECT) imaging demonstrates reliable quantitation of regional uptake for αRPTs. The purpose of this study is to demonstrate the feasibility, tolerability and performance of LC-QSPECT imaging.

A Phase 1 Clinical Trial to Evaluate the Safety and Preliminary Efficacy of Lutetium (177Lu) DGUL in Combination With Pembrolizumab in Patients With Metastatic Castration-Resistant Prostate Cancer (IGNITE Trial)

The goal of this clinical trial is to evaluate the safety of the combination therapy of Lutetium (177Lu) DGUL and pembrolizumab. It will also assess the antitumor efficacy and pharmacokinetics of the combination therapy compared to Lutetium (177Lu) DGUL monotherapy.

68Ga-PSMA PET-CT Scan for Diagnosis and Management of Prostate Cancer (PSMA)

This is a phase II clinical trial study to show how well the 68Ga-PSMA-11 (ProstaMedix™) PET-CT scan works in detecting tumor location and size in patients with suspected or confirmed prostate cancer, as well as prostate cancer that may have come back in patients with elevated PSA ( a prostate-specific antigen tumor marker) after initial treatment.

Lu177-EB-PSMA617 Prostate-Specific Membrane Antigen Inhibitor Therapy in Patients With Castration-Resistant Prostate Cancer

In prior studies, the investigators synthesized 177Lu-EB-PSMA-617 by conjugating a truncated Evans Blue (EB) molecule and DOTA chelator onto PSMA-617 and labeled it with 177Lu to increase the tumor accumulation and retention for radioligand therapy，and then the investigators evaluated the dosimetry of 177Lu-EB-PSMA-617 and response to single low-dose treatment in patients with metastatic castration-resistant prostate cancer(mCRPC). This study was performed to evaluate the safety and therapy response to 177Lu-EB-PSMA-617 in patients with mCRPC. This is an open-label, randomized study. Different groups with doses of 1.11GBq (30 mCi), 2.00 GBq (54 mCi) and 3.7GBq (100 mCi)of 177Lu-EB -PSMA617 will be injected intravenously. All patients will undergo 68Ga-PSMA PET/CT scans before and after the treatment.

A Sub-study of 18F-DCFPyL Positron Emission Tomography / Computed Tomography (PET/CT) for Assessment of Recurrent Prostate Cancer Evaluation of the Safety and Sensitivity of 68Ga-DOTATOC PET/CT for Imaging NET Patients

Quantitative parameters obtained with dynamic whole body imaging using positron emission tomography (PET) can provide additional and complementary information to standard PET. Dynamic imaging allows for better understanding of the behavior of the radio-pharmaceutical because it can be followed over time. Thought to be difficult to perform with currently available clinical equipment that can affect the clinical workflow, it has recently shown to be feasible. We want to test the feasibility of this imaging technique and evaluate its utility in identifying lesions with three different radio-pharmaceuticals as compared to standard static PET. This study will also determine the clinical impact of DWB PET on participant management by comparing the overall qualitative assessment performed by nuclear medicine physicians between the standard PET images and the DWB ones.

Evaluation of Diagnostic Accuracy of [68Ga]Ga-PSMA-11 PET/CT in Primary Staging of Intermediate and High Risk Prostatic Cancer in Men Newly Diagnosed

This is a diagnostic accuracy prospective, single-centre, open-label, single group assignment interventional study. Its aim is to evaluate the diagnostic accuracy of [68Ga]Ga-PSMA-11 PET/CT in detection of primary tumour and extra prostatic disease (lymph node, soft tissues spread or bone metastases) in men newly diagnosed with Prostate Cancer at Intermediate and High Risk, according to 2019 Prostate Cancer EAU Guidelines Risk Group Stratification (see Study Population paragraph). The investigators are interested in the possible future role of [68Ga]Ga-labelled PSMA PET/CT as integration to conventional imaging mpMRI (with or without CT of the lower abdomen and Bone scan) in the detection of primary tumor and extra-prostatic disease (lymph node and soft tissues spread or bone metastases).

Diagnostic Performance of 18F-prostate-specific Membrane Antigen-1007 PET/CT in the Detection of Prostate Cancer

Currently, Maximum Standardized Uptake Value (SUVmax) is the most commonly used semi-quantitative parameter in PET/CT, which is used to assess tumor burden of PCa, and thus can be used as an imaging biomarker to assess the degree of malignancy of prostate cancers. However, prior studies mainly focused on the correlation between patients' biochemical recurrence lesions and the PSA levels and Gleason score. There is a lack of research to explore the correlation among primary PCa burden, PSA levels, and the degree of prostate cancer malignancy. The aim of this project is to use 18F-PSMA PET/CT SUVmax to analyze the correlation among primary PCa imaging, and clinical indicators, and to evaluate the predictive value for PCa risk stratification, metastasis risk, and biochemical recurrence.

A Pilot Prospective Comparison of 68Ga-P16-093 and 68Ga-PSMA-617 in the Same Group of Prostate Cancer Patients

Prostate-specific membrane antigen (PSMA)-targeted PET imaging with 68Ga-labeled compounds is able to provide superior sensitivity and specificity to detect primary prostate tumor and its metastases, like the widely studied 68Ga-PSMA-617. This pilot study was prospectively designed to evaluate the early dynamic distribution of 68Ga-P16-093, a novel radiopharmaceutical targeting PSMA, which was compared with 68Ga-PSMA-617 in the same group of prostate cancer patients.

Therapeutic Efficiency and Response to 2.0 GBq (55mCi) 177Lu-EB-PSMA in Patients With mCRPC

In recent years, quite a few studies have demonstrated the possibility of 177Lu-PSMA-617 therapy as a viable treatment option in metastatic castration resistant prostate cancer (mCRPC), which has been shown desired effect. To increase tumor accumulation and retention for radioligand therapy, and reduce dosage of 177Lu, we conjugated a truncated Evans blue (EB) molecule and DOTA chelator onto PSMA-617 (EB-PSMA) and labeled it with 177Lu. This study is designed to assess the efficiency and response to 177Lu-EB-PSMA (55 mCi) in patients with mCRPC.

The Correlation Between the Detection Rate of 18F-FACBC PET/CT and the PSA Kinetics for Prostate Cancer Patients With Biochemical Recurrence.

Prostate cancer (PCa) is the fifth-most common cancer for male with a seventh highest cancer-related death in Taiwan. Currently, the incidence and mortality rate are still increasing rapidly. The treatment decision planning is made up by clinical charts like Gleason score (GS), TNM stage and serum prostate-specific antigen (PSA) level. However, after definitive therapy for PCa with either external beam radiotherapy (EBRT) or radical prostatectomy (RP), up to half patients experience biochemical recurrence (BCR). Although not all patients with BCR proceed to develop disease progression, it is important to identify early lesion to initiate salvage treatment.

Multicenter Evaluation of Diagnostic Performance of [18F]FPSMA-1007 PET/CT in Patients With Suspected Prostate Cancer

The diagnostic tools for detecting patients with early prostate cancer are limited due to poor diagnostic performance. The positron emission tomography (PET) combination with the diagnostic radiopharmacy is a non-invasive tool to provide the molecular imaging of the whole body and offer more comprehensive physiological information and then can raise the diagnostic performance. Prostate-specific membrane antigen (PSMA)-targeting pharmaceuticals have been regarded as the most promising diagnostic tool to diagnose patients with prostate cancer. Currently, the 18F-PSMA-1007 as PSMA-targeting 18F-radiolabeled pharmaceuticals have developed and successfully used in patients with intermittent- and high-risk prostate cancer or recurrent prostate cancer. The study aims to understand the diagnostic performance of 18F-PSMA-1007 PET/CT in different-stage prostate cancer patients by initiating the first multicenter clinical trial of 18F-PSMA-1007 in Taiwan.

PSMA Radio-Guided Lymph Node Dissection With Beta-Probe, in High-risk Prostate Cancer Patients.

The goal of this observational study is to evaluate the diagnostic efficacy and the safety of the combined approach with β-probe and 68Ga-PSMA-11 PET/CT in the correct identification of lymph node metastases, in high-risk prostate cancer patients undergoing radical prostatectomy and pelvic lymph node dissection.

Stereotactic Prostate Radiotherapy With Dose Escalation Focused on the "Dominant Intra-prostatic Lesion" (DIPL) Delineated by Multi-parametric MRI and 68Ga-PSMA PET (Prostate-SIB-PSMA)

In localized intermediate- and high-risk prostate cancers (according to the NCCN classification), external radiotherapy delivering a "high" dose (dose equivalent 78-80Gy EQD2, α/ß=1.5) to the entire prostate volume combined with hormonal treatment, if necessary, has shown its benefit in terms of recurrence-free survival and is considered a standard treatment for this indication.

68Ga-labeled NY108 PET Imaging in Patients

This is a single arm study to evaluate the safety and biodistribution of 89Zr-labeled NY108 (89Zr-NY108) PET Imaging in patients with Prostate cancer.

A Head-to-head Comparison of 68Ga-P15-041 and 68Ga-PSMA-11 PET/CT Imaging in the Same Group of Prostate Bone Metastasis

Tumor bone metastasis refers to the metastasis of malignant tumors to the bone through lymph, blood or direct invasion to generate daughter tumors, which is the most common bone tumor. More than 40% of patients with malignant tumors will have bone metastasis, among which breast cancer, prostate cancer is more common, once the tumor cells occur bone metastasis, it means that the disease enters the advanced stage, posing a serious threat to the life safety of patients, therefore, early diagnosis of various primary malignant tumor bone metastases, can lay the foundation for clinical implementation of effective treatment measures. The laboratory of Hank F. Kung at the University of Pennsylvania has developed a new generation of 68Ga-labeled radiopharmaceutical P15-041 ([68Ga]Ga-HBED-CC-BP) based on existing phosphonate-targeting molecular probes (Figure 1). Data from preclinical studies indicate that P15-041 shows additional advantages in rapid and easy complex formation compared to current [68Ga]Ga-BPAMD, [68Ga]Ga-NO2AP-BP, [68Ga]Ga-DOTA- (ZOL). In vivo experiments, P15-041 showed good bone resorption and rapid renal excretion in normal mice. Haiyan Hong et al. [13] prepared multiple clinical doses of P15-041 and successfully evaluated it in patients, followed by intravenous P15-041, followed by a whole body PET/CT scan. Robert K. Doot et al. conducted dosimetric experiments on P15-041, analyzed the radioactive distribution of the drug in normal organs and the dynamic change of the dose of the drug in the body over time, and the results showed that P15-041 had high uptake in the bladder wall and bone cortex, blood and other tissues cleared quickly, and there was obvious radioactive enrichment in the myocardium in the early stage of imaging, and P15-041 had the potential to become a new generation of excellent phosphonate molecular probes.

177Lu-labeled NY108 SPECT Imaging in Patients

This is a single arm study to evaluate the safety and biodistribution of 177Lu-labeled NY108 (177Lu-NY108) SPECT Imaging in patients.

Comparison of the Detection Efficiencies of Al18F-PSMA-617 and 68Ga-PSMA-617 PET/CT in Patients With Prostate Cancer

18F-labeled prostate-specific membrane antigen (PSMA) ligand-positron emission tomography (PET) offers advantages over 68Ga-labeled PSMA ligands. Al18F-PSMA-617 is a novel 18F-PSMA compound used for prostate cancer (PCa) imaging. This pilot study was prospectively designed to compare the lesion detectability of Al18F-PSMA-617 and related 68Ga-PSMA-617 PET/CT in patients with PCa

A Phase III, Open-Label, Multi-center Clinical Study to Assess the Diagnostic Performance and Safety of 18F-Florastamin PET/CT Imaging in Patients With at Least Intermediate Risk Prostate Cancer

In this study, 18F-Florastamin PET/CT will be performed in patients with at least intermediate risk prostate cancer, to assess the diagnostic performance and safety of 18F-Florastamin PET/CT imaging. This study will first carry out the pilot study (including pharmacokinetics and radiation dosimetry).

Study of 177Lu-PSMA-0057 in Metastatic Prostate Cancer

The purpose of this study is to evaluate the effectiveness and safety of 177Lu-PSMA-0057 in metastatic prostate cancer.

Clinical Study on 68Ga-PSMA-33 for PET/CT Imaging of Prostate Cancer

The purpose of this study is to determine the pharmacokinetics, dosimetry, tolerance, tumor detection rate of 68Ga-PSMA-33 in patient with Prostate Cancer (PCa).